New scraper-type ice cream machine

Abstract

This utility model discloses a novel ice cream machine with a scraper structure, comprising: a housing, a stirring assembly and a cooling assembly connected to the housing, a control valve assembly on the housing, and the stirring assembly located at the top of the housing for stirring raw materials and supplying them to a first evaporator; the first evaporator is also connected to a pushing assembly, which includes: a scraper and a drive component for driving the scraper, the scraper being disposed within a cooling chamber; the scraper includes a central support component, a spiral component connected to the outer wall of the central support component, and at least two movable scrapers connected to the outer wall of the central support component, the movable scrapers extending along the scraper's rotation axis. Through further improvements to the scraper, it includes a fixed spiral scraper portion and a movable scraper portion; the combined design of these two components allows the ice cream located on the wall of the cooling chamber to be thoroughly scraped off during the ice cream pushing process and delivered along with the spiral component, thus improving the texture of the ice cream.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment for preparing ice cream, and in particular to an ice cream machine with a novel scraper structure. Background Technology

[0002] Ice cream is a popular summer treat, and its production has evolved from traditional handmade methods to the more common machine-made methods of today. Machine-made ice cream has become the mainstream production method due to its high efficiency, good taste, and consistent quality.

[0003] In the process of making ice cream in an ice cream machine, the mixed ingredients are processed into ice cream in the evaporator (refrigeration cylinder). Ice cream is a viscous semi-solid substance, so a special structure is needed to transport the ice cream to the switching valve assembly. The existing rotating conveying mechanism is generally a spiral blade structure. In the long-term use, it cannot fully push the ice cream out of the refrigeration chamber, which can easily cause ice cream that cannot be transported for a long time to remain on the cavity wall of the refrigeration chamber, thus affecting the overall taste. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an ice cream machine with a new scraper structure to solve the technical problem that the existing scraper mechanism cannot fully push the ice cream out of the cavity wall.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An embodiment of this utility model provides an ice cream machine with a novel scraper structure, comprising: a housing, a stirring assembly and a cooling assembly connected to the housing, and a control valve assembly provided on the housing;

[0007] The refrigeration assembly includes: a compressor, a first condenser connected to the compressor, and a first evaporator connected to the first condenser. The first evaporator has a refrigeration chamber for preparing ice cream, and the control valve assembly is connected to the front opening of the refrigeration chamber.

[0008] The stirring assembly is located at the top of the shell and is used to stir the raw materials and supply them to the first evaporator;

[0009] The first evaporator is also connected to a pushing assembly, which includes a scraper and a driving component for driving the scraper. The scraper is disposed inside the refrigeration chamber. The scraper includes a central support, a spiral component connected to the outer wall of the central support, and at least two movable scrapers connected to the outer wall of the central support. The scrapers extend along the rotation axis of the scraper.

[0010] The central support member includes at least two support rods and at least two connecting rods connected to the support rods from the inside. The driving member is connected to one end of the support rod. The spiral member extends spirally from one end of the support rod to the other end. The movable scraper is movably connected to the connecting rod.

[0011] The movable scraper can only swing radially along the direction of the scraper's rotation.

[0012] Wherein, at least two of the movable scrapers are arranged axially back and forth in the direction of scraper rotation.

[0013] The stirring assembly includes: a stirring tank, a stirring element disposed in the stirring tank, and a stirring drive element for driving the stirring element to rotate;

[0014] The stirring component includes a shaft cylinder, an outer wall stirring part connected to the shaft cylinder, and a scraper part connected to the bottom side wall of the shaft cylinder. The bottom edge of the scraper part abuts against the bottom wall of the mixing tank. The outer wall of the shaft cylinder is also provided with a disc part near the bottom end. The bottom edge of the stirring part extends to the upper surface of the disc part, and the scraper part is connected to the lower surface of the disc part.

[0015] The stirring part is a stirring blade, which extends axially along the shaft cylinder.

[0016] The stirring blade extends from the top end of the shaft cylinder to the bottom end with a gradually increasing radial width.

[0017] The disc portion is also provided with several through holes, which are axially away from the scraper portion in the shaft cylinder portion.

[0018] The stirring drive includes: a rotating shaft, a driven pulley connected to the rotating shaft, a synchronous belt connected to the driven pulley, and a motor connected to the synchronous belt. The rotating shaft passes through the bottom wall of the stirring tank, and the driven pulley is located outside the stirring tank.

[0019] The compressor is also connected to a second condenser, which is connected to a second evaporator, which surrounds the mixing tank.

[0020] This invention relates to a novel ice cream machine with a scraper structure. By improving the scraper, it includes a fixed spiral scraper part and a movable scraper blade part. The combination of the two parts allows the ice cream located on the wall of the cooling chamber to be fully scraped off during the ice cream pushing process and sent out along with the spiral part, thus improving the taste of the ice cream.

[0021] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0022] Figure 1 and Figure 2 These are schematic diagrams of the overall structure of an ice cream machine with a novel scraper structure according to an embodiment of this utility model, taken from different perspectives.

[0023] Figure 3 and Figure 4 This is a schematic diagram of the ice cream machine with the new scraper structure of this utility model after the outer shell has been removed, showing the structure at different angles.

[0024] Figure 5 This is a schematic diagram of the cooling component of an ice cream machine with a novel scraper structure according to an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the first evaporator section of an ice cream machine with a novel scraper structure according to an embodiment of the present invention.

[0026] Figure 7 and Figure 8 These are schematic diagrams of the pushing component of an ice cream machine with a novel scraper structure according to an embodiment of this utility model, taken from different perspectives.

[0027] Figure 9 and Figure 10 These are schematic diagrams of the mixing component of an ice cream machine with a novel scraper structure according to an embodiment of this utility model, taken from different perspectives.

[0028] Figure 11 for Figure 4 The diagram shows a magnified view of part A.

[0029] Figure 12 This is an exploded view of the mixing assembly of an ice cream machine with a novel scraper structure according to an embodiment of the present invention.

[0030] Figure 13 This is a schematic diagram of the mixing component of an ice cream machine with a novel scraper structure according to an embodiment of the present invention.

[0031] Figure 14 This is a schematic diagram of the control valve assembly of an ice cream machine with a novel scraper structure according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] The new scraper-structured ice cream machine 100 includes: a housing 1, a stirring assembly 2, a control valve assembly 3, a compressor 4, a first condenser 5, a first evaporator 6, a second condenser 7, a liquid storage tank 8, a vent 11, a display module 12, a water collection box 13, a stirring box 21, a stirring component 22, a liquid inlet control valve pipe 23, a motor 24, a synchronous belt 25, a stop part 31, a refrigeration cylinder 61, a pushing assembly 62, a rotating shaft 221, a driven pulley 223, a refrigeration chamber 611, a drive component 621, a right-angle gearbox 622, a scraper 623, a central space 624, a central support component 6230, a support rod 6231, a connecting rod 6232, a spiral component 6233, a first movable scraper 6234, a second movable scraper 6235, a shaft cylinder 2221, a stirring part 2222, a disc part 2223, a scraper part 2224, and a through hole 2225. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Ice cream is a popular summer treat, and its production has evolved from traditional handmade methods to the more common machine-made methods. Machine-made ice cream has become the mainstream method due to its high efficiency, good taste, and stable quality. In the ice cream making process of an ice cream machine, the mixed ingredients are processed into ice cream in the evaporator (refrigeration cylinder). Ice cream is a viscous, semi-solid substance, therefore a special structure is needed to transport it to the switching valve assembly. Existing rotating conveying mechanisms are generally spiral blade structures, which, in long-term use, cannot fully push the ice cream out of the refrigeration chamber, easily causing ice cream to remain on the walls of the refrigeration chamber for extended periods, affecting the overall taste. Therefore, based on the above requirements, this embodiment provides an ice cream machine 100 with a novel scraper structure.

[0042] Please see Figures 1 to 13This embodiment discloses an ice cream machine 100 with a novel scraper structure, which includes: a housing 1, a stirring assembly 2 and a cooling assembly connected to the housing 1, and a control valve assembly 3 provided on the housing 1;

[0043] The refrigeration assembly includes: a compressor 4, a first condenser 5 connected to the compressor 4, and a first evaporator 6 connected to the first condenser 5. The first evaporator 6 is provided with a refrigeration chamber 611 for preparing ice cream, and the control valve assembly 3 is connected to the front opening of the refrigeration chamber 611.

[0044] The stirring assembly 2 is disposed on the top of the shell 1 and is used to stir the raw materials and supply them to the first evaporator 6.

[0045] The first evaporator 6 is also connected to a pushing assembly 62, which includes a scraper 623 and a driving member 621 for driving the scraper 623. The scraper 623 is disposed in the refrigeration chamber 611. The scraper 623 includes a central support member 6230, a spiral member 6233 connected to the outer wall of the central support member 6230, and at least two movable scrapers connected to the outer wall of the central support member 6230. The movable scrapers extend along the rotation axis of the scraper 623.

[0046] In this embodiment, the movable scraper includes a first movable scraper 6234 and a second movable scraper 6235. Both the first movable scraper 6234 and the second movable scraper 6235 extend along the length of the central support member 6230. When rotating with the central support member 6230, both the first movable scraper 6234 and the second movable scraper 6235 are attached to the cavity wall of the cooling cavity 611, thereby scraping off the ice cream accumulated on the cavity wall of the cooling cavity 611 and avoiding long-term accumulation that could cause spoilage and affect the taste.

[0047] The central support member 6230 includes at least two support rods 6231 and at least two connecting rods 6232 connected to the support rods 6231 from the inside. The driving member 621 is connected to one end of the support rod 6231. The spiral member 6233 extends spirally from one end of the support rod 6231 to the other end, and the movable scraper is movably connected to the connecting rod 6232. A central space 624 is formed inside the support rod 6231 for cooperating with the control valve assembly 3 to push the ice cream to the user. Specifically, as shown... Figure 14 As shown, the control valve assembly 3 includes a stop portion 31 located within the central space 624. When the scraper 623 rotates, the stop portion 624 remains stationary to cooperate with the scraper 623 in pushing the prepared ice cream from the outlet to the user.

[0048] like Figure 8As shown, the support rod 6231 is a round rod, and the connecting rod 6232 is a semi-circular part. The support rod 6231 is connected and fixed from the inside by a number of the connecting rods 6232 to form a support structure for fixing the spiral part 6233 and the movable scraper.

[0049] Furthermore, the movable scraper can only swing back and forth along the rotation direction of the scraper 623. That is, the movable scraper can only swing radially within the cooling chamber 611. When rotating in a controlled manner, it can effectively scrape off the ice cream accumulated on the side wall of the cooling chamber 611. The movable connection facilitates smoother scraping of ice cream and also prevents the movable scraper from getting stuck and damaged.

[0050] At least two of the movable scrapers are arranged axially and rearward along the rotation direction of the scraper 623. That is, the first movable scraper 6234 and the second movable scraper 6235 are arranged axially and rearward along the length of the support rod 6231. This arrangement works in conjunction with the spiral component 6233. When the spiral component 6233 rotates, it can push the ice cream forward. The movable scrapers simultaneously scrape off the ice cream on the side wall of the cooling cavity 611 and send it out with the spiral component 6233. This avoids the defect of a small amount of ice cream accumulating on the side wall of the cooling cavity 611 for a long time without being sent out, which would cause it to spoil and affect the taste.

[0051] The drive component 621 is a servo motor, and the output shaft of the servo motor is also equipped with a right-angle gearbox 622. The output end of the right-angle gearbox 622 is connected to the scraper 623. The servo motor is fixedly connected to the frame inside the housing 1.

[0052] The first evaporator 6 includes a refrigeration cylinder 61 and a pushing assembly 62 for pushing ice cream. The pushing assembly 62 includes the driving member 621, a right-angle gearbox 622, and a scraper 623. The refrigeration cylinder 61 is provided with a refrigeration chamber 611, which is used to prepare ice cream.

[0053] Please refer to it again. Figures 9 to 13 The stirring assembly 2 includes: a stirring tank 21, a stirring element 22 disposed in the stirring tank 21, and a stirring drive for driving the stirring element 22 to rotate.

[0054] The mixing tank 21 is also equipped with a liquid inlet control valve pipe 23, which is connected to the liquid storage tank 8 and is used to deliver liquids such as milk or water into the mixing tank 21.

[0055] The stirring component 22 includes a shaft cylinder 2221, a stirring part 2222 connected to the outer wall of the shaft cylinder 2221, and a scraper part 2224 connected to the bottom side wall of the shaft cylinder 2221. The bottom edge of the scraper part 2224 abuts against the bottom wall of the mixing tank 21.

[0056] The ice cream machine 100 of the novel stirring mechanism in this embodiment has a refrigeration component including a compressor 4, a condenser 5 connected to the compressor 4, and a first evaporator 6 connected to the condenser 5. The compressor 4, the condenser 5 and the first evaporator 6 together form a conventional refrigeration system. The three are connected by a pipeline for transporting refrigerant. By circulating the refrigerant (i.e., the refrigerant medium), ice cream is prepared in the making chamber of the first evaporator 6.

[0057] The mixing assembly 2 includes a mixing element 22, which features an innovative structural design. Its mixing section 2222 is located on the side wall of the shaft cylinder 2221, and the scraper section 2224 is located near the bottom of the shaft cylinder 2221. When the mixing element 22 is rotated in a controlled manner to mix the raw materials, the mixing section 2222 mixes the upper layer of materials in the mixing tank 21, while the scraper section 2224 at the bottom simultaneously scrapes the raw materials that have settled at the bottom of the mixing tank 21, preventing the raw materials from accumulating at the bottom of the mixing tank 21 and thus ensuring thorough mixing. Compared to existing blade mixing structures, the mixing element 22 in this embodiment provides more uniform mixing, and in particular, prevents the raw materials from settling at the bottom, ensuring thorough mixing.

[0058] Please refer to it again. Figure 12 and Figure 13 The outer wall of the shaft cylinder 2221 near the bottom is also provided with a disc portion 2223. The bottom edge of the stirring portion 2222 extends to the upper surface of the disc portion 2223, and the scraper portion 2224 is connected to the lower surface of the disc portion 2223. The disc portion 2223 is perpendicular to the shaft cylinder 2221, and the disc portion 2223 extends vertically outward from the side wall of the shaft cylinder 2221 near the lower end. The corresponding stirring portion 2222 is connected to the side wall of the shaft cylinder 2221 in the axial direction, and the bottom of the stirring portion 2222 is connected to the disc portion 2223.

[0059] The stirring section 2222 is a stirring blade, which extends axially along the shaft cylinder 2221. The stirring section 2222, with its blade-like structure, agitates the raw materials within the stirring tank 21 by rotation. In other embodiments, the stirring blade may be a stirring structure that is narrower at the top and wider at the bottom.

[0060] The stirring blades are arranged such that their radial width gradually increases from the top to the bottom of the shaft cylinder 2221. That is, as... Figure 13As shown, the stirring plate is a triangular plate, with its two shorter sides connected to the shaft cylinder 2221 and the disc 2223 respectively, and its longest side inclined in the vertical direction. When the stirring member 22 rotates and stirs the material, more solid material is located at the bottom of the mixing tank 21. This bottom position requires greater stirring force, while the material in the upper layer mixes with the material at the bottom under its own weight. Therefore, the stirring part 2222 is set as a triangular plate structure to adapt to the distribution of the material and improve its stirring efficiency.

[0061] Furthermore, the disc portion 2223 is provided with several through holes 2225, which are vertically oriented away from the scraper portion 2224. The through holes 2225 are arc-shaped holes, which help the raw material at the scraper portion 2224 to overflow upwards during the stirring process, preventing excessive raw material from being squeezed under the disc portion 2223, thus avoiding the risk of the stirring component 22 getting stuck.

[0062] In this embodiment, the stirring part 2222 and the scraper part 2223 are evenly spaced, and the stirring component 22 is an integrally formed structure.

[0063] Please refer to it again. Figure 10 The stirring component 22 further includes a stirring drive component, which includes: a rotating shaft 221 and a driven pulley 223 connected to the rotating shaft 221, a synchronous belt 25 and a motor 24 connected to the synchronous belt. The rotating shaft 221 passes through the bottom wall of the stirring tank 21, and the driven pulley 223 is located outside the stirring tank 21. A stirring unit 222 is sleeved on the rotating shaft 221. The stirring unit 222 includes an integral structure formed by the aforementioned shaft cylinder 2221, stirring section 2222, scraper section 2223 and disc section 2224. The motor 24 is fixedly connected to the shell of the first evaporator 6.

[0064] Please refer to it again. Figures 1 to 6 The compressor 4 is also connected to the second condenser 7, which is connected to the second evaporator. The second evaporator surrounds the mixing tank 21 and is used to cool the mixing tank 21 to keep the raw materials in the mixing tank 21 fresh.

[0065] The housing 1 is also provided with a vent 11 for heat dissipation, a display module 12 for displaying the working status, and a water collection box 13 located below the control valve assembly 3. The control valve assembly 3 is a conventional manual switch control valve.

[0066] The ice cream machine with the new scraper structure in this embodiment improves the scraper by including a fixed spiral scraper part and a movable scraper blade part. The combination of the two is designed so that during the process of pushing the ice cream, the ice cream located on the wall of the cooling chamber is also fully scraped off and sent out along with the spiral part, which improves the taste of the ice cream.

[0067] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. An ice cream machine with a new scraper structure, characterized in that, Comprising: A housing, a stirring component and a refrigeration component connected to the housing, and a control valve component provided on the housing; The refrigeration component includes: a compressor, a first condenser connected to the compressor, and a first evaporator connected to the first condenser. A refrigeration chamber for preparing ice cream is provided in the first evaporator, and the control valve component is connected to the front end opening of the refrigeration chamber; The stirring component is arranged at the top of the housing and is used for stirring raw materials and supplying them to the first evaporator; Wherein, the first evaporator is further connected to a pushing component. The pushing component includes: a scraper and a driving member for driving the scraper. The scraper is arranged in the refrigeration chamber; The scraper includes a middle support member, a spiral member connected to the outer wall of the middle support member, and at least two movable scraping plates connected to the outer wall of the middle support member. The movable scraping plates extend along the rotation axis direction of the scraper.

2. The ice cream machine with the new scraper structure according to claim 1, characterized in that, The middle support member includes at least two support rods and at least two connecting rods connected to the support rods from the inside. The driving member is connected to one end of the support rod; The spiral member spirally extends from one end of the support rod to the other end, and the movable scraping plate is movably connected to the connecting rod; A middle space for discharging in cooperation with the blocking portion of the control valve component is formed in the middle of the support rod.

3. The ice cream machine with the new scraper structure according to claim 2, wherein The movable scraping plate can only swing back and forth along the rotation direction of the scraper.

4. The ice cream machine with the new scraper structure according to claim 3, characterized in that, At least two of the movable scraping plates are distributed axially before and after in the rotation direction of the scraper.

5. The ice cream machine with the new scraper structure according to claim 4, characterized in that, The stirring component includes: a stirring box, a stirring member arranged in the stirring box, and a stirring driving member for driving the stirring member to rotate; The stirring member includes a shaft barrel portion, a stirring portion connected to the outer wall of the shaft barrel portion, and a scraping portion connected to the bottom of the side wall of the shaft barrel portion. The bottom edge of the scraping portion abuts against the bottom wall of the stirring box. A disc portion is further provided near the bottom end of the outer wall of the shaft barrel portion. The bottom edge of the stirring portion extends to the upper disc surface of the disc portion, and the scraping portion is connected to the lower disc surface of the disc portion.

6. The ice cream machine with the new scraper structure according to claim 5, characterized in that, The stirring portion is a stirring blade, and the stirring blade extends along the axial direction of the shaft barrel portion.

7. The ice cream machine with the new scraper structure according to claim 6, characterized in that, The stirring blade gradually increases in radial width from the top end to the bottom end of the shaft barrel portion.

8. The ice cream machine with the new scraper structure according to claim 7, wherein, A plurality of through holes are further provided on the disc portion, and the through holes avoid the scraping portion in the axial direction of the shaft barrel portion.

9. The ice cream machine with the new scraper structure according to any one of claims 5 to 8, wherein, The stirring driving member includes: a rotating shaft, a driven pulley connected to the rotating shaft, a synchronous belt connected to the driven pulley, and a motor connected to the synchronous belt. The rotating shaft penetrates through the bottom wall of the stirring box, and the driven pulley is located outside the stirring box.

10. The ice cream machine with the new scraper structure according to claim 9, characterized in that, The compressor is further connected to a second condenser, the second condenser is connected to a second evaporator, and the second evaporator surrounds the stirring box.

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