Scraper plate assembly of smoothie machine and smoothie machine

Abstract

The smoothie machine scraper structure comprises a driving unit, a first scraping unit and a second scraping unit, the driving unit comprises a driving motor and a driving shaft, the first scraping unit comprises a first scraper and a containing cavity located on the inner side of the first scraper, and the top end of the first scraper is fixedly connected with the driving shaft; the second scraping unit comprises a fixed seat rotatably mounted at the top end of the driving shaft, outer knife rests extending downwards from the two ends of the fixed seat and second scrapers arranged on the opposite sides of the two outer knife rests, and the transmission unit is used for enabling the first scraping unit to be in transmission connection with the second scraping unit. According to the scraper structure of the smoothie machine and the smoothie machine, the second scraper with the opposite rotating directions is additionally arranged on the basis of the original first scraper, so that ice blocks can be crushed into smoothie, the production rate of the smoothie is increased, and turbulence can be formed due to the fact that the rotating directions of the first scraper and the second scraper are opposite, so that the smoothness of the smoothie machine is improved. And the formed smoothies are prevented from being adhered together or attached to the inner wall of the smoothie cylinder to form ice blocks by disturbing the formed smoothies.

Description

Technical Field

[0001] This invention relates to the field of smoothie machine technology, and more specifically to a smoothie machine scraper assembly and a smoothie machine. Background Technology

[0002] A smoothie maker is a type of cold beverage preparation equipment, also known as an ice maker, slush machine, or shaved ice machine. Traditionally, cold beverages were made by adding ice cubes, but melting ice diluted the beverage, making it bland and tasteless, severely impacting its flavor. Therefore, smoothie makers were developed to simultaneously maintain the beverage's low temperature, concentration, and smooth texture.

[0003] Most smoothie machines on the market currently use compressor refrigeration technology. The evaporator, as the component that outputs refrigeration, is usually installed near the hopper, which serves as the ice-making container for the smoothie, to lower the internal temperature of the hopper. The hopper also contains spiral stirring blades. When making a smoothie, water or a beverage is added to the hopper. The evaporator continuously absorbs heat from the beverage, causing its temperature to drop gradually, transforming it into a solid-liquid mixture or solid ice. With the continuous stirring of the blades inside the hopper, the beverage gradually develops a smooth, slushy texture. The finished smoothie is then removed from the machine and poured into a beverage, resulting in a frozen, smooth, and rich texture with a long-lasting icy effect.

[0004] Blenders can generally be categorized into horizontal and vertical types. In a horizontal blender, the mixing blades are installed horizontally and spirally propelled. The blender continuously pushes the blender to the front of the blades. The blender at the very front, being further away from the blades, cannot receive continuous mixing and is prone to remelting, affecting the output. Vertical blenders, on the other hand, effectively solve this problem.

[0005] However, during the mixing process of a vertical smoothie machine, the smoothie is pushed against the inner wall of the smoothie cylinder by the combined action of centrifugal force and the mixing blades. To avoid friction between the mixing blades and the inner wall of the smoothie cylinder, a certain gap is usually set between the mixing blades and the smoothie cylinder during assembly. This prevents the smoothie that is in contact with the inner wall of the smoothie cylinder from being stirred by the mixing blades and continuously squeezed to form ice blocks. After the smoothie forms ice blocks, it will affect the stirring of the mixing blades, thereby affecting the smoothie production efficiency. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, one of the objectives of this invention is to invent a scraper assembly for a smoothie machine that prevents smoothie from accumulating and condensing on the inner wall of the smoothie cylinder.

[0007] The second objective of this invention is to invent a smoothie machine.

[0008] One of the objectives of this invention is achieved through the following technical solution: A smoothie machine scraper assembly, comprising, The drive unit includes a drive motor and a drive shaft mounted on the drive end of the drive motor; The first scraping unit includes a first scraper and a receiving cavity located inside the first scraper and surrounded by the first scraper, wherein the top end of the first scraper is fixedly connected to the drive shaft. The second scraping unit includes a fixed base rotatably mounted on the top of the drive shaft, an outer blade holder extending downward from both ends of the fixed base, and a second scraper disposed on one side of the two outer blade holders facing each other, with the first scraper disposed between the two second scrapers. The transmission unit includes a drive gear disposed between the fixed base and the first scraper and fixedly connected to the drive shaft, a driven gear installed at the connection between the fixed base and the drive shaft, and a linkage gear disposed between the drive gear and the driven gear. The linkage gear meshes with the drive gear and the driven gear. A damping rod is installed on the side of the outer blade holder facing the first scraper, and the end of the damping rod is rotatably connected to the linkage gear.

[0009] Furthermore, the fixed base and the outer tool holder are hollow. An opening is provided at the bottom end of the fixed base where it connects to the drive shaft. Multiple limiting grooves are evenly arranged radially along the inner side of the opening, extending axially along the opening. A switching gear and two first transmission assemblies are provided inside the outer tool holder, and the two first transmission assemblies are connected to the switching gear via the... The switching gears are symmetrically arranged around the center. A portion of the switching gears is placed inside the opening, and the outer side of the portion of the switching gears inside the opening forms a limiting block that slides with the limiting groove. A second transmission assembly is provided inside the outer blade holder. The second transmission assembly is connected to the first transmission assembly, and the second scraper is connected to the second transmission assembly. The slush machine scraper assembly also includes a switching unit. The switching unit includes a drive ring slidably mounted on the drive shaft, a drive spring sleeved on the outside of the drive shaft, and a drive sleeve mounted on the outside of the bottom end of the drive ring. The drive sleeve is frustoconical. The drive shaft has a threaded section inside the drive sleeve. The diameter of the drive ring is equal to or smaller than the opening diameter. The drive spring is threadedly connected to the threaded section to move upward along the drive shaft axis under the drive of the threaded section, so as to push the drive ring into the opening and push the switching gear away from the opening. The drive sleeve is adapted to abut against the linkage gear when the drive ring moves upward, so as to separate the linkage gear from the driving gear and the driven gear. The bottom surface of the switching gear and the top surface of the drive ring are friction surfaces.

[0010] Furthermore, the first transmission assembly includes a plurality of transmission gears arranged sequentially towards each other along the length of the fixed base, and the second transmission assembly includes a plurality of drive gears spaced apart along the length of the outer tool holder, a steering gear disposed between two adjacent drive gears and meshing with the two adjacent drive gears respectively, and a connecting gear that drivesly connects the first transmission assembly and the second transmission assembly. The second scraper includes a blade shaft and an outer blade body. One end of the blade shaft is placed inside the outer blade body and is connected to the drive gear for transmission, while the other end is fixedly connected to the outer blade body.

[0011] Furthermore, the side of the linkage gear facing away from the damping rod is provided with a tapered boss, which is adapted to abut against the drive sleeve when the drive ring moves upward and slide along the surface of the drive sleeve to drive the damping rod to retract.

[0012] Furthermore, a compression spring is also provided inside the fixed base. One end of the compression spring abuts against the top of the switching gear, and the other end abuts against the inner wall of the fixed base, so as to provide elastic force for the switching gear to move in the opening direction.

[0013] Furthermore, the length of the drive ring is greater than or equal to the depth of the opening.

[0014] Furthermore, the switching unit also includes a protective sleeve fitted on the outside of the threaded section, with the top end of the protective sleeve fixedly connected to the bottom end of the drive ring.

[0015] Furthermore, the first scraper includes an inner blade holder disposed outside the receiving cavity and an inner blade body mounted outside the inner blade holder, the inner blade body being arranged in a spiral shape.

[0016] Furthermore, an angle sensor is also installed at the top of the switching gear to detect the rotation angle of the switching gear.

[0017] The second objective of this invention is achieved through the following technical solution: A smoothie maker includes a housing, a smoothie cylinder, a refrigeration assembly, and a smoothie scraper assembly. The housing has a smoothie cylinder mounting position on its surface, and the smoothie cylinder is mounted on the mounting position. The top of the smoothie cylinder has a liquid inlet, and the bottom side of the smoothie cylinder has a smoothie outlet. The refrigeration assembly includes a refrigerant supply unit and an evaporator disposed in a receiving cavity. The refrigerant supply unit is connected to the evaporator through a condensation pipe.

[0018] Beneficial effects: This invention adds a second scraper with the opposite rotation direction to the original first scraper, which can break larger ice blocks into slush, thereby improving the production efficiency of slush. At the same time, since the first and second scrapers rotate in opposite directions, turbulence can be generated to disturb the formed slush and prevent it from sticking together or adhering to the inner wall of the slush cylinder to form ice blocks, which would affect the stirring of the first scraper and the discharge of the slush. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a scraper assembly for a smoothie machine according to the present invention; Figure 2 for Figure 1 Enlarged view at point A in the middle; Figure 3 This is a cross-sectional view of a scraper assembly for a smoothie machine according to the present invention; Figure 4 for Figure 3 Enlarged view at point B Figure 5 for Figure 3 Enlarged view at point C Figure 6 This is a schematic diagram of the structure of the first scraping unit of the scraper assembly of a smoothie machine according to the present invention; Figure 7 This is a schematic diagram of the structure of the second scraping unit of the scraper assembly of a smoothie machine according to the present invention; Figure 8 This is a schematic diagram of the internal structure of the second scraping unit of the scraper assembly of a smoothie machine according to the present invention; Figure 9 This is a schematic diagram of the switching gear structure of the scraper assembly of a smoothie machine according to the present invention; Figure 10 This is a schematic diagram of the internal structure of a scraper assembly fixing seat for a smoothie machine according to the present invention; Figure 11 This is a schematic diagram of the structure of a smoothie machine according to the present invention; Figure label: 10. Drive unit; 101. Drive motor; 102. Drive shaft; 1021. Threaded section; 20. First scraping unit; 201. First scraper; 2011. Inner tool holder; 2012. Inner tool body; 30. Second scraping unit; 301. Fixed base; 3011. Opening; 3012. Limiting groove; 302. Outer tool holder; 303. Second scraper; 3031. Tool shaft; 3032. Outer tool body; 304. Switching gear; 3041. Limiting block; 305. First transmission assembly; 3051. Transmission gear; 306. Second transmission assembly; 3061. Drive gear; 306 2. Steering gear; 3063. Connecting gear; 307. Compression spring; 40. Transmission unit; 401. Driving gear; 402. Driven gear; 403. Linkage gear; 4031. Conical boss; 404. Damping rod; 50. Switching unit; 501. Drive ring; 502. Drive spring; 503. Drive sleeve; 504. Protective sleeve; 60. Blender; 601. Outer shell; 6011. Blender cylinder mounting position; 602. Blender cylinder; 6021. Liquid inlet; 6022. Blender outlet; 603. Refrigeration components; 6031. Refrigerant supply unit; 6032. Evaporator. Detailed Implementation

[0020] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] In the description of this invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 invention 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 invention.

[0022] 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 invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 invention according to the specific circumstances.

[0024] like Figure 1-10 As shown, a smoothie machine scraper assembly includes, The drive unit 10 includes a drive motor 101 and a drive shaft 102 mounted on the drive end of the drive motor 101. The first scraping unit 20 includes a first scraper 201 and a receiving cavity located inside the first scraper 201 and surrounded by the first scraper 201. The receiving cavity is used to place the evaporator 6032 of the smoothie machine 60 so that the first scraper 201 can scrape off the smoothie on the surface of the evaporator 6032 when it is working. The top end of the first scraper 201 is fixedly connected to the drive shaft 102. The second scraping unit 30 includes a fixed base 301 rotatably mounted on the top of the drive shaft 102, an outer blade holder 302 extending downward from both ends of the fixed base 301, and a second scraper 303 disposed on one side of the two outer blade holders 302 facing each other, wherein the first scraper 201 is disposed between the two second scrapers 303. The transmission unit 40 includes a drive gear 401 disposed between the fixed base 301 and the first scraper 201 and fixedly connected to the drive shaft 102, a driven gear 402 installed at the connection between the fixed base 301 and the drive shaft 102, and a linkage gear 403 disposed between the drive gear 401 and the driven gear 402. The linkage gear 403 meshes with the drive gear 401 and the driven gear 402. A damping rod 404 is installed on the side of the outer blade holder 302 facing the first scraper 201, and the end of the damping rod 404 is rotatably connected to the linkage gear 403.

[0025] Specifically, during normal use, the drive motor 101 drives the first scraper 201 to rotate via the drive shaft 102. Simultaneously, the drive gear 401 drives the outer blade holder 302 to rotate via the linkage gear 403 and the driven gear 402. During this process, the first scraper 201 removes the ice condensed on the surface of the evaporator 6032 and applies a tangential force in the first direction to the ice. Some of the ice will break under the action of the tangential force to form slush, while the remaining ice will be removed along with the first scraper 201 under the action of the tangential force. The ice is moved until it comes into contact with the second scraper 303, which rotates in the opposite direction to the first scraper 201. The second scraper 303 will apply a tangential force in the second direction to the ice block, and the ice block will be sheared into slush under the action of tangential forces in two directions. In addition, during the rotation of the first scraper 201 and the second scraper 303, the liquid inside the slush cylinder 602 will be disturbed and turbulence will be formed in the liquid, so as to effectively prevent the formed slush from sticking together again or adhering to the inner wall of the slush cylinder 602 to form ice blocks during the preparation of slush.

[0026] Furthermore, in actual use, the liquid comes into contact with the evaporator 6032 and solidifies to form ice. This ice is then scraped off the evaporator 6032 by the first scraper 201, forming the desired slush. The particle size of the slush is determined by its freezing time, specifically by the contact time between the slush and the evaporator 6032. The longer the contact time between the liquid and the evaporator 6032 after condensation, the thicker the slush formed when scraped off by the first scraper 201. Therefore, to obtain a thicker or larger slush, the usual practice is to reduce the speed of the drive motor 101 to reduce the scraping action of the first scraper 201 on the surface of the evaporator 6032. The speed is increased to prolong the contact time between the ice and the evaporator 6032. However, reducing the rotation speed of the first scraper 201 will inevitably reduce the disturbance of the liquid in the slush cylinder 602 by the first scraper 201. Moreover, after the ice is scraped off, it usually floats on the surface of the liquid due to its low density. Under this condition, the ice is very easy to stick together to form ice blocks. The formed ice blocks may block the slush outlet 6022 on the one hand, and affect the stirring effect of the first scraper 201 on the other hand. A large number of ice blocks will accumulate on the surface of the liquid to form ice clumps, thereby jamming the first scraper 201, or further reducing the rotation speed of the first scraper 201, resulting in stirring difficulties and failure to form slush normally.

[0027] To address this issue, in this embodiment, the fixed base 301 and the outer tool holder 302 are hollow. An opening 3011 is provided at the connection between the bottom end of the fixed base 301 and the drive shaft 102. Multiple limiting grooves 3012 are evenly arranged radially along the inner side of the opening 3011, extending axially along the opening 3011. A switching gear 304 and two first transmission components 305 connected to the switching gear 304 are provided inside the outer tool holder 302. The first transmission component 305 is symmetrically arranged with the switching gear 304 as the center. A portion of the switching gear 304 is placed inside the opening 3011, and the outer side of the portion of the switching gear 304 placed inside the opening 3011 forms a limiting block 3041 that slides with the limiting groove 3012. A second transmission component 306 is provided inside the outer blade holder 302. The second transmission component 306 is connected to the first transmission component 305. The second scraper 303 is connected to the second transmission component 306. The slush machine 60 scraper assembly also includes a switching unit 50. This switching unit 50 includes a drive ring 501 slidably mounted on the drive shaft 102, a drive spring 502 sleeved on the outside of the drive shaft 102, and a drive sleeve 503 mounted on the outside of the bottom end of the drive ring 501. The drive sleeve 503 is frustoconical in shape. The portion of the drive shaft 102 located inside the drive sleeve 503 has a threaded section 1021. The diameter of the drive ring 501 is equal to or smaller than the opening 3011. The diameter, the drive spring 502 is threadedly connected to the threaded section 1021, and is adapted to move upward along the drive shaft 102 axially under the drive of the threaded section 1021, so as to push the drive ring 501 into the opening 3011 and push the switching gear 304 away from the opening 3011. The drive sleeve 503 is adapted to abut against the linkage gear 403 when the drive ring 501 moves upward, so as to separate the linkage gear 403 from the driving gear 401 and the driven gear 402. The bottom surface of the switching gear 304 and the top surface of the drive ring 501 are friction surfaces.

[0028] In this embodiment, the drive motor 101 drives the drive shaft 102 to rotate in the opposite direction, thereby driving the drive spring 502, which is threadedly connected to the drive shaft 102, to move upward along the axial direction of the drive shaft 102. This pushes the drive ring 501 into the opening 3011 to abut against the switching gear 304, and pushes the switching gear 304 out of the opening 3011. At this time, the limiting block 3041 separates from the limiting groove 3012. The switching gear 304 will rotate under the frictional force given by the drive ring 501, and drive the second scraper 303 to rotate through the first transmission component 305 and the second transmission component 306, thereby increasing the angle between the second scraper 303 and the horizontal plane, and thus enhancing the disturbance to the liquid in the slush tube 602 when the drive shaft 102 drives the second scraper 303 to rotate, thereby preventing the slush from sticking together to form ice blocks. During this process, the drive sleeve 503, which is fixed to the drive ring 501, will also move upward along the drive shaft 102 along with the drive ring 501 and abut against the linkage gear 403. Since the drive sleeve 503 is truncated cone-shaped, during the upward movement of the drive sleeve 503, the linkage gear 403 will move in the opposite direction to the drive shaft 102 under the force applied by the outer side of the drive sleeve 503. The damping rod 404 will retract, and the linkage gear 403 will separate from the driving gear 401 and the driven gear 402. At this time, the drive shaft 102 cannot drive the linkage gear 403 to rotate, and thus cannot drive the fixed seat 301 to rotate. The second scraping unit 30 remains stationary, which facilitates the adjustment of the angle of the second scraper 303. In order to ensure the accuracy of the angle adjustment, the rotation speed of the drive shaft 102 should not be too high during the adjustment of the angle of the second scraper 303. After adjustment, the drive motor 101 drives the drive shaft 102 to rotate in the forward direction, thereby causing the drive spring 502 to move downward along the drive shaft 102 axially. The bottom end of the switching gear 304 re-enters the opening 3011, the limit block 3041 re-inserts into the limit groove 3012, and the switching gear 304 locks with the fixed seat 301 to fix the angle between the second scraper 303 and the horizontal plane, so as to prevent the second scraper 303 from rotating under the influence of the reaction force given by the liquid during use. At the same time, the linkage gear 403 slides along the surface of the drive sleeve 503 under the elastic force given by the damping rod 404 until it meshes with the driving gear 401 and the driven gear 402.

[0029] At this time, the bottom end of the drive spring 502 will abut against the top surface of the drive gear 401, thus preventing it from moving further downward. The axial movement of the drive spring 502 is blocked, and under the action of the threaded section 1021, it compresses and deforms to generate a buffering force. In the radial direction, the drive spring 502 will rotate with the drive shaft 102 under the pressure of the threaded section 1021 without hindering the rotation of the drive shaft 102. The buffering force generated by the compression deformation can provide pressure for the threaded connection between the drive spring 502 and the threaded section 1021 when the drive shaft 102 rotates in the forward direction. Thus, when the drive shaft 102 rotates in the forward direction, the drive spring 502 can move upward along the axial direction of the drive shaft 102 under the drive of the threaded section 1021.

[0030] Furthermore, to ensure that the drive ring 501 can drive the switching gear 304 to rotate after contacting it, a compression spring 307 is also provided inside the fixed base 301 in this embodiment. One end of the compression spring 307 abuts against the top of the switching gear 304, and the other end abuts against the inner wall of the fixed base 301, so as to provide elastic force for the switching gear 304 to move towards the opening 3011. Since the magnitude of friction is determined by the roughness and pressure of the contact surface, and in this embodiment the pressure of the switching gear 304 acting on the drive ring 501 is determined by the elastic force of the compression spring 307, the compression spring 307 has a small amount of contraction during the process of the drive ring 501 contacting the switching gear 304 and pushing it away from the opening 3011. The pressure on 1 is relatively small, and the friction between the drive ring 501 and the switching gear 304 is small. This can prevent the drive ring 501 from pushing the switching gear 304 away from the opening 3011. In this process, the drive ring 501 drives the fixed seat 301 to rotate through the switching gear 304, which would cause the fixed seat 301 to continue rotating under the action of inertia after the switching gear 304 is separated from the opening 3011, thus affecting the angle adjustment of the second scraper 303. After the switching gear 304 is separated from the opening 3011, the switching gear 304 continues to move upward under the action of the drive ring 501 until the compression spring 307 is compressed to its limit or close to its limit, or when the drive ring 501 can drive the switching gear 304 to rotate. At this time, the rotation of the drive shaft 102 can drive the second scraper 303 to rotate, thereby adjusting the angle of the second scraper 303. Furthermore, during the process of the drive shaft 102 rotating forward to send the switching gear 304 back to the opening 3011, the drive ring 501 will still drive the switching gear 304 to rotate at a certain angle. However, since the stroke of the switching gear 304 to the opening 3011 is fixed, the rotation angle of the switching gear 304 during its return to the opening 3011 is fixed. Therefore, when adjusting the angle of the second scraper 303, it is only necessary to control the switching gear 304 to adjust the second scraper 303 to a suitable angle, and then continue to drive the second scraper 303 to rotate at a fixed angle so that it can cancel out the rotation angle generated during the process of the switching gear 304 returning to the opening 3011, thereby ensuring the accuracy of the adjustment of the angle of the second scraper 303.

[0031] Furthermore, to further improve the accuracy of operators when making angle adjustments, in this embodiment, an angle sensor is also installed at the top of the switching gear 304 to detect the rotation angle of the switching gear 304.

[0032] Specifically, in this embodiment, the first transmission component 305 includes a plurality of transmission gears 3051 arranged sequentially towards each other along the length of the fixed base 301, and the second transmission component 306 includes a plurality of drive gears 3061 spaced apart along the length of the outer tool holder 302, a steering gear 3062 disposed between two adjacent drive gears 3061 and meshing with the two adjacent drive gears 3061 respectively, and a connecting gear 3063 that drives the first transmission component 305 and the second transmission component 306 together. The second scraper 303 includes a blade shaft 3031 and an outer blade body 3032. One end of the blade shaft 3031 is placed inside the outer blade body 3032 and is connected to the drive gear 3061 for transmission, and the other end is fixedly connected to the outer blade body 3032.

[0033] In this embodiment, multiple second scrapers 303 are provided, and each second scraper 303 is connected to the drive gear 3061 through the cutter shaft 3031, so that the drive shaft 102 can drive the second scraper 303 to rotate through the drive gear 3061. The steering gear 3062 provided between adjacent drive gears 3061 can, on the one hand, ensure that the rotation direction of each drive gear 3061 is the same, so that the rotation direction of the second scraper 303 is the same when adjusting the angle, and on the other hand, form a certain gap between adjacent second scrapers 303 to avoid collision between adjacent second scrapers 303 when adjusting the angle.

[0034] In addition, to facilitate the retraction of the linkage gear 403 driven by the drive sleeve 503, a tapered boss 4031 is provided on the side of the linkage gear 403 facing away from the damping rod 404 in this embodiment. The tapered boss 4031 is adapted to abut against the drive sleeve 503 when the drive ring 501 moves upward, and slide along the surface of the drive sleeve 503 to drive the damping rod 404 to retract.

[0035] In order for the drive ring 501 to switch the gear 304 to push out the opening 3011, in this embodiment, the length of the drive ring 501 is greater than or equal to the depth of the opening 3011.

[0036] Meanwhile, to prevent the liquid from contacting and condensing with the surface of the drive spring 502 or the threaded section 1021 during the preparation of the shaved ice, in this embodiment, the switching unit 50 further includes a protective sleeve 504 sleeved on the outside of the threaded section 1021. The top end of the protective sleeve 504 is fixedly connected to the bottom end of the drive ring 501, and the bottom end of the protective sleeve 504 abuts against the upper end face of the drive gear 401, so that the protective sleeve 504 can wrap around the threaded section 1021 and the drive spring 502 threadedly connected to the threaded section 1021, so as to prevent the liquid from contacting the threaded section 1021 and the drive spring 502 during the stirring process.

[0037] Specifically, the first scraper 201 includes an inner blade holder 2011 disposed outside the receiving cavity and an inner blade body 2012 installed outside the inner blade holder 2011. The inner blade body 2012 is spirally arranged. The spiral inner blade body 2012 can better scrape off the ice on the surface of the evaporator 6032. The cooperating inner blade holder 2011 can improve the overall strength of the first scraper 201 on the one hand, and push the slush towards the inner wall of the slush cylinder 602 on the other hand, so that the slush can be discharged from the slush outlet 6022 opened on the inner wall of the slush cylinder 602.

[0038] Specifically, such as Figure 3 and Figure 10 As shown, the present invention also discloses a smoothie machine 60, including a housing 601, a smoothie cylinder 602, a refrigeration component 603, and the aforementioned smoothie machine scraper assembly. The surface of the housing 601 is provided with a smoothie cylinder mounting position 6011, and the smoothie cylinder 602 is mounted on the smoothie cylinder mounting position 6011. The top of the smoothie cylinder 602 is provided with a liquid inlet 6021, and the bottom side of the smoothie cylinder 602 is provided with a smoothie outlet 6022. The refrigeration component 603 includes a refrigerant supply unit 6031 and an evaporator 6032 disposed in a receiving cavity. The refrigerant supply unit 6031 is connected to the evaporator 6032 through a condensation pipe.

[0039] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. A scraper assembly for a smoothie machine, characterized in that: include, The drive unit includes a drive motor and a drive shaft mounted on the drive end of the drive motor; The first scraping unit includes a first scraper and a receiving cavity located inside the first scraper and surrounded by the first scraper, wherein the top end of the first scraper is fixedly connected to the drive shaft. The second scraping unit includes a fixed base rotatably mounted on the top of the drive shaft, an outer blade holder extending downward from both ends of the fixed base, and a second scraper disposed on one side of the two outer blade holders facing each other, with the first scraper disposed between the two second scrapers. The transmission unit includes a drive gear disposed between the fixed base and the first scraper and fixedly connected to the drive shaft, a driven gear installed at the connection between the fixed base and the drive shaft, and a linkage gear disposed between the drive gear and the driven gear. The linkage gear meshes with the drive gear and the driven gear. A damping rod is installed on the side of the outer blade holder facing the first scraper, and the end of the damping rod is rotatably connected to the linkage gear.

2. The slush machine scraper assembly according to claim 1, characterized in that: The fixed base and the outer tool holder are hollow. An opening is provided at the bottom end of the fixed base where it connects to the drive shaft. Multiple limiting grooves are evenly arranged radially on the inner side of the opening. The limiting grooves extend axially along the opening. A switching gear and two first transmission components are provided inside the outer tool holder. The two first transmission components are symmetrically arranged with the switching gear as the center. A portion of the switching gear is placed inside the opening, and a limiting block is formed on the outer side of the portion of the switching gear placed inside the opening, which slides with the limiting groove. A second transmission component is provided inside the outer tool holder. The second transmission component is connected to the first transmission component. The second scraper is connected to the second transmission component. The slush machine scraper assembly further includes a switching unit, which includes a drive ring slidably mounted on the drive shaft, a drive spring sleeved on the outside of the drive shaft, and a drive sleeve mounted on the outside of the bottom end of the drive ring. The drive sleeve is frustoconical in shape. The drive shaft has a threaded section inside the drive sleeve. The diameter of the drive ring is equal to or smaller than the opening diameter. The drive spring is threadedly connected to the threaded section to move upward along the drive shaft axis under the drive of the threaded section, so as to push the drive ring into the opening and push the switching gear away from the opening. The drive sleeve is adapted to abut against the linkage gear when the drive ring moves upward, so as to separate the linkage gear from the driving gear and the driven gear. The bottom surface of the switching gear and the top surface of the drive ring are friction surfaces.

3. The slush machine scraper assembly according to claim 2, characterized in that: The first transmission assembly includes a plurality of transmission gears arranged sequentially towards each other along the length of the fixed base; the second transmission assembly includes a plurality of drive gears spaced apart along the length of the outer tool holder, a steering gear disposed between two adjacent drive gears and meshing with the two adjacent drive gears respectively, and a connecting gear that drives the first transmission assembly and the second transmission assembly. The second scraper includes a blade shaft and an outer blade body. One end of the blade shaft is placed inside the outer blade body and is connected to the drive gear for transmission, while the other end is fixedly connected to the outer blade body.

4. The slush machine scraper assembly according to claim 2, characterized in that: The side of the linkage gear facing away from the damping rod is provided with a tapered boss. The tapered boss is adapted to abut against the drive sleeve when the drive ring moves upward and slide along the surface of the drive sleeve to drive the damping rod to retract.

5. The slush machine scraper assembly according to claim 2, characterized in that: The fixed base is also provided with a compression spring. One end of the compression spring abuts against the top of the switching gear, and the other end abuts against the inner wall of the fixed base, so as to provide elastic force for the switching gear to move in the direction of the opening.

6. The slush machine scraper assembly according to claim 2, characterized in that: The length of the drive ring is greater than or equal to the depth of the opening.

7. The slush machine scraper assembly according to claim 2, characterized in that: The switching unit also includes a protective sleeve fitted on the outside of the threaded section, with the top end of the protective sleeve fixedly connected to the bottom end of the drive ring.

8. The slush machine scraper assembly according to claim 1, characterized in that: The first scraper includes an inner blade holder disposed outside the receiving cavity and an inner blade body mounted outside the inner blade holder, the inner blade body being arranged in a spiral shape.

9. The slush machine scraper assembly according to claim 1, characterized in that: An angle sensor is also installed at the top of the switching gear to detect the rotation angle of the switching gear.

10. A smoothie maker, characterized in that: The slush machine includes a housing, a slush cylinder, a refrigeration assembly, and a scraper assembly according to any one of claims 1-9. The housing has a slush cylinder mounting position on its surface, the slush cylinder is mounted on the slush cylinder mounting position, the top of the slush cylinder has a liquid inlet, and the bottom side of the slush cylinder has a slush outlet. The refrigeration assembly includes a refrigerant supply unit and an evaporator disposed in a receiving cavity. The refrigerant supply unit is connected to the evaporator through a condensation pipe.

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