Juicer

Abstract

The juicer comprises a main machine internally provided with a motor and a cup body, a cutter assembly is arranged in the cup body and comprises a cutter shaft driven by the motor, and the cutter assembly further comprises a first blade, a second blade and a third blade which are fixed to the cutter shaft and sequentially arranged from top to bottom; the first blade, the second blade and the third blade are each provided with at least four blades, the blades of the first blade are bent upwards along the blade root, the blades of the third blade are bent downwards along the blade root, and the first blade and the third blade are arranged in a mirror image mode relative to the horizontal plane. The second blade, the first blade and the third blade are arranged in a staggered mode, and the outer diameter of the first blade and the outer diameter of the third blade are smaller than the outer diameter of the second blade. The juicer can meet the portable use requirement, meanwhile, the smashing efficiency can be guaranteed, and the cutter is prevented from being clamped.

Description

Technical Field

[0001] The utility model relates to the field of food processing machines, in particular to a juicer. Background Art

[0002] The cutters of juicers currently on the market generally include two or more layers of blades, and each layer of blades includes two or more blades. In the solution disclosed in the existing patent CN205234243U, the layers of blades are staggered so that all the blades are located at different positions in the circumferential direction, that is, the cutting angles of all the blades are different, the tool has a poor disturbing effect on the fluid, the material runs relatively regularly, and the material crushing efficiency is low.

[0003] In order to solve the problem of insufficient crushing and low crushing efficiency caused by the complete misalignment of the blades, other existing solutions have made improvements, so that the upper blades and the lower blades are aligned one by one along the axis of the blade shaft, that is, a part of the blades are not misaligned, which is conducive to improving the ability of the tool to drive the fluid to rotate and flow, and to enhance a certain turbulence effect, so that the material can be fully whipped and crushed. Among them, the bending angles of the upper blades and the lower blades are different, and the projections of the two on the horizontal plane are not equal. In the process of the material being rolled by the upper and lower blades, there is a situation where some of the material cannot be rolled up. For example, the upward bending angle of the upper blade is greater than the downward bending angle of the lower blade, and the projection of the upper blade on the horizontal plane is within the projection range of the lower blade on the horizontal plane, that is, the projection area of the upper blade is small. When the tool is working, only a part of the material rolled up by the lower blade can contact the upper blade and be cut, and the other part of the material is easily deposited at the bottom of the processing chamber, interfering with the rotation of the lower blade and causing the knife to get stuck, reducing the reliability of the normal use of the tool.

[0004] Therefore, how to improve the crushing efficiency while avoiding the occurrence of knife jamming is an urgent problem that needs to be solved.

[0005] In addition, conventional juicers or similar food processors all work in plug-in mode. When plugged in, they can ensure that the motor runs for a long time and have low requirements for the motor's output torque. However, they rely on an external power supply and cannot meet the needs of users to use them anywhere, causing inconvenience. If batteries are used to power the motor, it can meet the needs of portable use. For the first solution mentioned above, due to the low crushing efficiency, the crushing time needs to be extended to ensure sufficient crushing. When the machine is plugged in, the motor drive time can be guaranteed, but for portable models, the limited power consumption of a single use limits the single working time of the motor. How to improve the crushing efficiency and achieve the expected crushing effect within a limited time is currently a matter of concern. Utility Model Content

[0006] The utility model provides a juicer, aiming to solve the problem that existing juicers are incompatible with improving crushing efficiency, avoiding knife jamming and meeting the demand for portable use at the same time.

[0007] The utility model discloses a juicer, comprising a main body with a motor installed therein and a cup body, wherein a knife assembly is arranged in the cup body, wherein the knife assembly comprises a knife shaft driven by the motor, and wherein the knife assembly further comprises a first blade, a second blade and a third blade fixed on the knife shaft and arranged in sequence from top to bottom, wherein the first blade, the second blade and the third blade are each provided with at least four blades, the blades of the first blade are bent upward along the blade root, the blades of the third blade are bent downward along the blade root, the first blade and the third blade are arranged in a mirror image relative to a horizontal plane, the second blade is arranged in an alternating manner with the first blade and the third blade, and the outer diameters of the first blade and the third blade are smaller than the outer diameter of the second blade.

[0008] The juicer of the present invention also has the following additional technical features:

[0009] The first blade includes a first base and at least four primary blades surrounding the first base, the second blade includes a second base and at least four secondary blades surrounding the second base, and the third blade includes a third base and at least four tertiary blades surrounding the third base. The first base and the third base are smaller than the second base.

[0010] The second base includes an upper base and a lower base stacked up and down, the secondary blades include an upper folded secondary blade bent upward from the upper base and a lower folded secondary blade bent downward from the lower base, and the upper folded secondary blades and the lower folded secondary blades are arranged alternately.

[0011] The secondary blade is integrally formed on the second base, or the secondary blade and the second base are separate structures.

[0012] The first blade includes a primary blade, the second blade includes a secondary blade, and the third blade includes a tertiary blade. The secondary blade is provided with a through hole, the top of the through hole is not higher than the top of the primary blade, and / or the bottom of the through hole is not lower than the bottom of the tertiary blade.

[0013] The second blade includes a second base and at least four secondary blades surrounding the second base, at least one secondary blade is bent upward along the second base, and at least one secondary blade is bent downward along the second base. The secondary blade bent downward along the second base includes a connecting portion extending obliquely downward from the second base and an extension portion extending horizontally from the end of the connecting portion, and the extension portion is arranged near the tip of the secondary blade.

[0014] The first blade includes at least four primary blades, the second blade includes at least four secondary blades, the length of the line connecting the tip of the primary blade to the center of the first blade is L1, the length of the line connecting the tip of the secondary blade to the center of the second blade is L2, and the range of L2:L1 is 1.3-1.6.

[0015] The vertical height between the center of gravity of the knife assembly and the center of gravity of the motor is H1, the vertical height from the top of the juicer to the bottom of the juicer is H2, and the range of H1:H2 is 0.05-0.2.

[0016] A battery and a battery compartment for accommodating the battery are provided in the host, and the battery is configured to discharge to the motor so that the motor drives the knife assembly to rotate.

[0017] The motor is a brushless motor. The juicer also includes a knife seat arranged between the bottom opening of the cup body and the main unit. One end of the knife shaft is located in the cup body, and the other end passes through the knife seat and the motor in sequence.

[0018] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0019] 1. The juicer of the present invention adopts three layers of blades, namely, upper, middle and lower blades. By making the first blade and the third blade be mirror-imaged, and the second blade being staggered with the first blade and the third blade, on the one hand, it can solve the problem of low crushing efficiency caused by the complete misalignment of the blades in the prior art, which is beneficial to improving the turbulent flow effect of the liquid, increasing the probability of contact between the material and the blades, and thus improving the crushing efficiency. On the other hand, the bending angles of the first blade and the third blade are equal and the projections of the two on the horizontal plane are completely equal, which is beneficial to the material being fully contacted with the blades for stirring during the process of being rolled up or down, avoiding the problem that some material cannot be rolled up and is easily deposited at the bottom, causing the knife to get stuck, thereby improving the reliability of the tool.

[0020] Furthermore, the blades of the first blade and the third blade are relatively short blades, which can reduce the torque. When the juicer of the present application is used as a portable model, reducing the torque can reduce the output torque of the motor. Under a certain power condition, the motor can run for a longer time at a time, which is beneficial to extend the single use time. On this basis, by setting four or more blades, the contact area between the blade and the material can be increased, which is beneficial to improve the crushing efficiency. The second blade can also provide a certain crushing ability, which can improve the overall crushing efficiency of the tool and ensure the crushing effect of the food.

[0021] 2. By making the first base and the third base smaller than the second base, it is beneficial to meet the needs of some specific ingredients to be gathered in the central area for cutting, such as shaved ice. The second base can play a certain diversion role to guide the ingredients close to the first blade and the third blade, thereby increasing the contact between the ingredients and the blades and improving the crushing efficiency.

[0022] 3. The second blade can be a combination of upper and lower layers of knives. Each layer of knives corresponds to a blade with a bending direction. The processing difficulty is relatively small. Moreover, when a blade is severely worn or damaged, only the corresponding blade needs to be replaced without replacing the entire second blade, which is conducive to cost saving.

[0023] Alternatively, the second blade may be provided with only one layer of blades, and the relationship between the secondary blades and the second base body may be flexibly set according to actual needs, that is, the secondary blades and the second base body are an integral structure or a split structure, so as to increase the flexibility of processing.

[0024] 4. A through hole is provided on the secondary blade, and its function is to allow the material located on the lower side of the secondary blade to flow upward through the through hole so as to be cut by the first blade. By limiting the distribution position of the through hole, it is beneficial for the material located on the lower side of the secondary blade to contact with the third blade and then flow upward, so as to improve the utilization rate of the third blade, and the material flowing out of the through hole can fully contact with the first blade for crushing, which can improve the crushing efficiency.

[0025] 5. By making multiple secondary blades have different bending directions, the second blade can have a larger cutting stroke along the axial direction, which can enhance the turbulence effect on the liquid, enhance the tumbling of the food, and achieve sufficient cutting of the food; wherein, the extension part can support the falling material so that the material rotates and is cut again, which can prevent the material from sinking to the bottom and causing the knife to get stuck or insufficient crushing. The extension part is arranged close to the tip of the knife so that the proportion occupied by the extension part is small, which can ensure that the connecting part has a longer length, thereby increasing the cutting contact area with the material and ensuring the crushing efficiency.

[0026] 6. The first blade of the present application uses a shorter blade, which is beneficial to reducing the output torque of the motor and thus extending the single-time use time of the machine. On this basis, if the crushing efficiency of the first blade is insufficient, it can be used in combination with the second blade with relatively longer blades to improve the overall crushing efficiency of the tool; the parameters L2:L1 can not only meet the requirements of crushing efficiency, but also facilitate the transition of materials between the two blades, and facilitate the material to roll back and forth and be cut by the two blades to achieve sufficient crushing.

[0027] 7. The H1 of the present application is smaller, that is, the center of gravity of the motor is closer to the center of gravity of the knife assembly compared to the prior art, which can improve the installation coaxiality of the knife assembly and the motor, thereby improving the working stability of the knife assembly, and preventing the knife assembly from shaking and increasing noise during contact with the material. At the same time, it is beneficial to reduce the axial size of the main machine and promote the miniaturization of the machine, making the machine more lightweight and portable.

[0028] 8. The juicer of the present application can meet the demand for portability, is convenient for users to carry out, and can improve the utilization rate of the product. It is powered by batteries, which can not only simplify the structure but also save user operations, which can greatly improve the user experience.

[0029] 9. The use of a brushless motor to flatten the motor is beneficial for bringing the center of gravity of the motor closer to the tool, which can improve the stability of the motor's transmission to the tool and thus improve the stability of the tool's operation. It can also reduce the size of the main machine and promote the miniaturization of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of a juicer according to one embodiment of the present application.

[0032] Figure 2 for Figure 1 Schematic diagram of the main structure of the juicer.

[0033] Figure 3 This is a schematic diagram of the composition structure of the knife assembly under the first embodiment of this application.

[0034] Figure 4 Shown Figure 3 The length of the line from the tip of the primary blade to the center of the first blade in the knife assembly.

[0035] Figure 5 Shown Figure 3 The length of the line from the tip of the secondary blade to the center of the second blade in the knife assembly.

[0036] Figure 6 This is an exploded schematic diagram of the composition of the knife assembly in the second embodiment of the present application.

[0037] Figure 7 for Figure 6 Schematic diagram of the blades after stacking.

[0038] Figure 8 for Figure 7 Schematic top view of the knife assembly.

[0039] Figure 9 Shown Figure 6 The length of the line from the tip of the primary blade to the center of the first blade in the knife assembly.

[0040] Figure 10 Shown Figure 6The length of the line from the tip of the secondary blade to the center of the second blade in the knife assembly.

[0041] Reference numerals:

[0042] 10. Main unit; 101. Function button; 11. Cup body; 111. Cup cover; 12. Motor; 13. Knife assembly; 131. Knife shaft; 14. First blade; 141. First base; 142. Primary blade; 15. Second blade; 151. Second base; 152. Secondary blade; 153. Connecting part; 154. Extension part; 16. Third blade; 161. Third base; 162. Third blade; 17. Knife holder; 18. Through hole; 19. Via hole; 20. Battery. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0044] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0045] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0046] 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 being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0048] like Figures 1 to 10 As shown, the present application provides a juicer, including a main body 10 with a motor 12 and a cup body 11, a knife assembly 13 is provided in the cup body 11, the knife assembly 13 includes a knife shaft 131 driven by the motor 12, and the knife assembly 13 also includes a first blade 14, a second blade 15 and a third blade 16 fixed on the knife shaft 131 and arranged in sequence from top to bottom, the first blade 14, the second blade 15 and the third blade 16 are each provided with at least four blades, the blades of the first blade 14 are bent upward along the root of the blade, and the blades of the third blade 16 are bent downward along the root of the blade, the first blade 14 and the third blade 16 are mirror-imaged relative to the horizontal plane, the second blade 15 is staggered with the first blade 14 and the third blade 16, and the outer diameters of the first blade 14 and the third blade 16 are smaller than the outer diameter of the second blade 15.

[0049] The juicer of the present invention adopts three layers of blades, namely upper, middle and lower blades. By making the first blade 14 and the third blade 16 be mirror-imaged, and the second blade 15 being staggered with the first blade 14 and the third blade 16, on the one hand, it can solve the problem of low crushing efficiency caused by the complete misalignment of the blades in the prior art, which is beneficial to improving the turbulent effect of the liquid, increasing the probability of contact between the material and the blades, and thus improving the crushing efficiency. On the other hand, the bending angles of the first blade 14 and the third blade 16 are equal and the projections of the two on the horizontal plane are completely equal, which is beneficial to the material being fully contacted with the blades for stirring during the process of being rolled up or down, avoiding that part of the material is not rolled up and easily deposited at the bottom to cause the knife to get stuck, thereby improving the reliability of the tool.

[0050] Furthermore, the blades of the first blade 14 and the third blade 16 are relatively short blades, which can reduce the torque. When the juicer of the present application is used as a portable model, reducing the torque can reduce the output torque of the motor 12. When the power is constant, the motor 12 can run for a longer time at a time, which is beneficial to extend the single use time. On this basis, by setting four or more blades, the contact area between the blade and the material can be increased, which is beneficial to improving the crushing efficiency. The second blade 15 can also provide a certain crushing ability, which can improve the overall crushing efficiency of the tool and ensure the crushing effect of the food.

[0051] Specifically, the juicer of the present application can be used without being plugged in. For example, a battery 20 is provided in the main unit 10 to supply power to the motor 12. A function button 101 is provided on the housing of the main unit 10. By operating the function button 101, the motor 12 can drive the blade assembly 13 to work, thereby squeezing juice, shaving ice, etc. In some embodiments, Figure 1 and Figure 2 As shown, the main unit 10 is arranged at the bottom, and function buttons 101 are provided on the side of the main unit 10. By selecting different buttons, different ingredients can be processed. Alternatively, in other embodiments, the main unit 10 is arranged at the top, that is, the cup body 11 is provided at the bottom of the main unit 10, and the function buttons can be provided at the top or side of the main unit 10. For example, when the function buttons are provided at the top of the main unit 10, the user can press the buttons with his palm or finger to make the machine work, which is convenient to operate. Furthermore, the cup body 11 is detachable or non-detachable from the main unit 10. For example, when the cup body 11 is non-detachable, a cup cover 111 is provided on the top of the cup body 11, and the need to add ingredients or pour ingredients can be met by opening the cover. In a preferred embodiment, the juicer also includes a knife seat 17 provided between the bottom opening of the cup body 11 and the main unit 10, and one end of the knife shaft 131 is located in the cup body 11, and the other end passes through the knife seat 17 and the motor 12 in sequence. Among them, the knife seat 17 and the cup body 11 can be fixed by means of threaded connection, screw connection, etc., and the knife shaft 131 can be an integrated structure with the motor shaft of the motor to simplify the structural configuration, or the knife shaft 131 and the motor shaft are independent structures and the two are connected by transmission. In this embodiment, the knife shaft 131 is integrated with the motor shaft, and the first blade 14, the second blade 15 and the third blade 16 are riveted and fixed to the knife shaft 131, so that the knife assembly 13 can be rotated forward and reverse. The first blade 14 and the third blade 16 are arranged in a mirror image relative to the horizontal plane, which means that the blades of the first blade 14 and the blades of the third blade 16 are aligned one by one and the projections completely overlap, and the bending angles are the same.

[0052] As a preferred embodiment, the first blade 14 includes a first base 141 and at least four primary blades 142 surrounding the first base 141, the second blade 15 includes a second base 151 and at least four secondary blades 152 surrounding the second base 151, and the third blade 16 includes a third base 161 and at least four tertiary blades 162 surrounding the third base 161. The first base 141 and the third base 161 are smaller than the second base 151.

[0053] like Figure 3 or Figure 6 As shown, by making the first base 141 and the third base 161 smaller than the second base 151, it is beneficial to meet the needs of some specific ingredients being gathered in the central area for cutting, such as shaved ice, cutting hard ingredients, etc. The second base 151 can play a certain diversion role to guide the ingredients close to the first blade 14 and the third blade 16, thereby increasing the contact between the ingredients and the blades and improving the crushing efficiency.

[0054] like Figure 8 As shown, the first base 141 and the second base 151 are both roughly rectangular. When the first base 141 and the second base 151 are stacked, the first base 141 completely falls within the range of the second base 151. Since the primary blades 142 and the secondary blades 152 are arranged in an interlaced manner, the material guided by the edge of the second base 151 can move directly toward the primary blades 142 and be cut, which helps to gather the food in the central area for cutting, thereby improving work efficiency. The corresponding relationship between the third base 161 and the second base 151 can refer to the corresponding relationship between the first base 141 and the second base 151, and will not be repeated here.

[0055] It is understood that, in other embodiments, each base body may also adopt a different shape, or the sizes of the three base bodies may be set to be equal. A through hole 18 is provided on each of the three base bodies for the knife shaft 131 to pass through.

[0056] As a preferred embodiment of this embodiment, the second base 151 includes an upper base and a lower base stacked one above the other, and the secondary blades 152 include an upper folded secondary blade that bends upward from the upper base and a lower folded secondary blade 52 that bends downward from the lower base, with the upper folded secondary blades and the lower folded secondary blades arranged alternately. In this embodiment, the second blade 15 includes two layers of blades, each layer corresponding to a blade with a bending direction, which is relatively easy to manufacture. Moreover, when a blade is severely worn or damaged, only the corresponding blade needs to be replaced, without replacing the entire second blade 15, which is beneficial for cost savings.

[0057] As a preferred embodiment of this embodiment, Figure 6As shown, the second base 151 is a single-base structure, and the second blade 15 is provided with only one blade layer. The secondary blades 152 can be either integral with the second base 151 or separate, allowing for greater flexibility based on actual needs. When the secondary blades 152 are separate from the second base 151, they can be connected to the second base 151, for example, by welding.

[0058] As a preferred embodiment, the first blade 14 includes a primary blade 142, the second blade 15 includes a secondary blade 152, and the third blade 16 includes a tertiary blade 162. The secondary blade 152 is provided with a through hole 19, which allows the material located on the lower side of the secondary blade 152 to flow upward through the through hole 19 so as to be cut by the first blade 14.

[0059] Specifically, in one embodiment, Figure 3 As shown, the secondary blade 152 includes an upwardly curved blade and a downwardly curved blade. Both blades are provided with a through hole 19. For the downwardly curved blade, by ensuring that the bottom end of the through hole 19 is no lower than the bottom end of the tertiary blade 162, material located below the secondary blade 152 can be brought into contact with the third blade 16 before being spun upward, thereby improving the utilization rate of the third blade 16. For the upwardly curved blade, by ensuring that the top end of the through hole 19 is no higher than the top end of the primary blade 142, material spun out of the through hole 19 can fully contact the first blade 14 for crushing, thereby improving crushing efficiency. The through hole 19 can be shaped, for example, as a strip extending along the length of the blade to increase the amount of material spun through per unit time.

[0060] As a preferred embodiment, the second blade 15 includes a second base 151 and at least four secondary blades 152 surrounding the second base 151, at least one secondary blade 152 is bent upward along the second base 151, and at least one secondary blade 152 is bent downward along the second base 151. The secondary blade 152 bent downward along the second base 151 includes a connecting portion 153 extending obliquely downward from the second base 151 and an extension portion 154 extending horizontally from the end of the connecting portion 153, and the extension portion 154 is arranged near the tip of the secondary blade 152.

[0061] like Figure 6 As shown, the multiple secondary blades 152 have different bending directions, which can make the second blade 15 have a larger cutting stroke in the axial direction, enhance the turbulence effect on the liquid, enhance the tumbling of the food, and achieve sufficient cutting of the food; wherein, the extension portion 154 can support the falling material so that the material rotates and is cut again, which can prevent the material from sinking to the bottom and causing the knife to get stuck or insufficient crushing. The extension portion 154 is arranged close to the tip of the knife so that the proportion occupied by the extension portion 154 is small, which can ensure that the connecting portion 153 has a longer length, thereby increasing the cutting contact area with the material and ensuring the crushing efficiency.

[0062] Further, such as Figure 10 As shown, the vertical height between the tip of the upward-bending secondary blade 152 and the tip of the downward-bending secondary blade 152 is H3, and the range of H3 is 16-21mm, which can fully cut the material within the stroke, thereby improving the crushing efficiency. When H3 is set to less than 16mm, the cutting range is small, resulting in low crushing efficiency. When H3 is set to greater than 21mm, there are two situations. One is that the upward-bending secondary blade 152 and / or the downward-bending secondary blade 152 are close to extending vertically (i.e., the angle between the secondary blade 152 and the second base 151 is close to 90 degrees). On the one hand, it is not conducive to driving the liquid to rotate, resulting in poor turbulence effect. On the other hand, it will reduce the radial cutting range of the second blade 15, resulting in poor crushing efficiency. Another is that when the upward-bending secondary blade 152 and / or the downward-bending secondary blade 152 are set longer, the part of the blade away from the second base 151 is easy to break, affecting the service life.

[0063] The second blade 15 of the present application may have Figure 3 and Figure 7 Two forms, in Figure 3 In the scheme, the secondary blade 152 extends in an arc shape, which is beneficial to increase the contact area with the material and improve the crushing efficiency. Figure 7 In the embodiment of the present invention, the secondary blade 152 is a straight-edge extension for easy processing. Regardless of the form, in the embodiment with four secondary blades 152, two of the secondary blades 152 are arranged opposite to each other and bent upward, and the other two secondary blades 152 are arranged opposite to each other and bent downward, so that the second blade 15 has a larger cutting range in the axial direction.

[0064] As a preferred embodiment, the first blade 14 includes at least four primary blades 142, and the second blade 15 includes at least four secondary blades 152. The length of the line connecting the tip of the primary blade 142 to the center of the first blade 14 is L1, and the length of the line connecting the tip of the secondary blade 152 to the center of the second blade 15 is L2. The range of L2:L1 is 1.3-1.6.

[0065] like Figure 4 and Figure 5 、 Figure 9 and Figure 10As shown, the first blade 14 of the present application adopts a shorter blade, which is conducive to reducing the output torque of the motor 12 and thus extending the single use time of the machine. On this basis, the insufficient crushing efficiency of the first blade 14 can be used in combination with the second blade 15 with a relatively long blade to improve the crushing efficiency of the tool as a whole; the parameters of L2:L1 can not only meet the requirements of crushing efficiency, but also facilitate the transition of materials between the two blades, and facilitate the material to roll back and forth and be cut by the two blades to achieve full crushing. When the value of L2:L1 is less than 1.3, the extension of the first blade 142 is not conducive to improving the single use time of the machine (under a certain power level), and the shortening of the second blade 152 makes it difficult to meet the overall crushing efficiency requirements. When the value of L2:L1 is greater than 1.6, the setting of the first blade 142 too short will result in poor cutting force and cannot meet the cutting requirements of hard ingredients, and the setting of the second blade 152 too long will cause the position near the tip of the blade to break easily, affecting the service life.

[0066] Taking the first blade 14 as an example, L1 can be understood as a lever arm. The present application adopts a blade with a small lever arm, which is conducive to reducing the torque, thereby reducing the output torque of the motor 12, so that the motor 12 can run for a longer time under a certain power supply, ensuring the crushing effect of the food, especially the crushing of hard food such as ice cubes, which can be fully crushed.

[0067] As a preferred embodiment, the vertical height between the center of gravity of the knife assembly 13 and the center of gravity of the motor 12 is H1, the vertical height from the top of the juicer to the bottom of the juicer is H2, and the range of H1:H2 is 0.05-0.2.

[0068] like Figure 1 As shown, H1 of the present application is smaller, that is, the center of gravity of the motor 12 is closer to the center of gravity of the knife assembly 13 compared with the prior art, which can improve the installation coaxiality of the knife assembly 13 and the motor 12, thereby improving the working stability of the knife assembly 13, and preventing the knife assembly 13 from shaking and increasing noise during the contact with the material. At the same time, it is beneficial to reduce the axial size of the main machine 10 and promote the miniaturization of the machine, making the machine more lightweight and portable.

[0069] To position the center of gravity of the motor 12 closer to the blade assembly 13, the motor 12 is preferably a brushless motor. Flattening the motor 12 facilitates compressing the axial dimensions of the motor 12. In this embodiment, the motor 12 is a brushless motor. Given a constant H1, if the ratio of H1:H2 is less than 0.05, i.e., H2 is set too large, the axial volume of the entire device will be too large, increasing the space occupied and making it difficult for users to carry around. If the ratio of H1:H2 is greater than 0.2, i.e., H2 is set too small, compressing the axial dimensions of the main unit will result in insufficient space for the battery inside the main unit. Compressing the axial dimensions of the cup body will also result in a reduced processing chamber capacity, failing to meet users' demands for processing larger beverage volumes.

[0070] As a preferred embodiment, a battery 20 and a battery compartment for accommodating the battery 20 are provided in the host 10 , and the battery 20 is configured to discharge to the motor 12 so that the motor 12 drives the knife assembly 13 to rotate.

[0071] The juicer of the present application can meet the demand for portability, is convenient for users to carry out, and can improve the utilization rate of the product. It is powered by the battery 20, which can not only simplify the structure but also save the user's operation amount, which can greatly improve the user experience. Preferably, the battery 20 is a rechargeable battery. The user can charge the battery 20 and use it repeatedly. Thanks to the small torque output of the motor 12, the battery 20 can be used for a long time when it is fully charged, which can reduce the number of times the user charges and improve the user experience. It can be understood that for disposable batteries, it can also be used for a long time by the motor 12, which can reduce the frequency of users replacing the battery 20. By setting up a battery compartment, thermal insulation protection is provided for the battery 20, which can prevent the heat from the machine's operation from being transferred to the battery 20 to affect its performance and life, and at the same time prevent the heat from the battery 20 from being transferred to the motor 12; and the battery compartment can limit the battery 20 to a certain extent, which can prevent the battery 20 from shaking violently and causing damage when the user carries the juicer with him, which is conducive to extending its service life. Figure 1 As shown, in one embodiment, the battery 20 is arranged near the bottom of the host 10, below the motor 12. There is sufficient space below the motor 12 to arrange a larger battery 20 to increase the capacity of the battery 20, so that the machine can be used for a longer time when fully charged.

[0072] The technical solutions protected by this utility model are not limited to the above-described embodiments. It should be noted that the combination of the technical solutions of any one embodiment with the technical solutions of one or more other embodiments falls within the scope of protection of this utility model. Although the above description of this utility model has been provided in detail using general instructions and specific embodiments, it is obvious to those skilled in the art that modifications or improvements can be made based on this utility model. Therefore, such modifications or improvements made without departing from the spirit of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A juicer, comprising a main unit with a motor installed therein and a cup body, wherein a knife assembly is installed in the cup body, and the knife assembly includes a knife shaft driven by the motor, characterized in that: The knife assembly also includes a first blade, a second blade and a third blade fixed on the knife shaft and arranged in sequence from top to bottom. The first blade, the second blade and the third blade are each provided with at least four blades. The blades of the first blade are bent upward along the root of the blade, and the blades of the third blade are bent downward along the root of the blade. The first blade and the third blade are mirror-imaged relative to the horizontal plane, the second blade is staggered with the first blade and the third blade, and the outer diameters of the first blade and the third blade are smaller than the outer diameter of the second blade.

2. A juicer according to claim 1, characterized in that: The first blade includes a first base and at least four primary blades surrounding the first base, the second blade includes a second base and at least four secondary blades surrounding the second base, and the third blade includes a third base and at least four tertiary blades surrounding the third base. The first base and the third base are smaller than the second base.

3. A juicer according to claim 2, characterized in that: The second base includes an upper base and a lower base stacked up and down, the secondary blades include an upper folded secondary blade bent upward from the upper base and a lower folded secondary blade bent downward from the lower base, and the upper folded secondary blades and the lower folded secondary blades are arranged alternately.

4. A juicer according to claim 2, characterized in that: The secondary blade is integrally formed on the second base, or the secondary blade and the second base are separate structures.

5. The juicer according to claim 1, characterized in that: The first blade includes a primary blade, the second blade includes a secondary blade, and the third blade includes a tertiary blade. The secondary blade is provided with a through hole, the top of the through hole is not higher than the top of the primary blade, and / or the bottom of the through hole is not lower than the bottom of the tertiary blade.

6. The juicer according to claim 1, characterized in that: The second blade includes a second base and at least four secondary blades surrounding the second base, at least one secondary blade is bent upward along the second base, and at least one secondary blade is bent downward along the second base. The secondary blade bent downward along the second base includes a connecting portion extending obliquely downward from the second base and an extension portion extending horizontally from the end of the connecting portion, and the extension portion is arranged near the tip of the secondary blade.

7. The juicer according to claim 1, characterized in that: The first blade includes at least four primary blades, the second blade includes at least four secondary blades, the length of the line connecting the tip of the primary blade to the center of the first blade is L1, the length of the line connecting the tip of the secondary blade to the center of the second blade is L2, and the range of L2:L1 is 1.3-1.

6.

8. The juicer according to claim 1, characterized in that: The vertical height between the center of gravity of the knife assembly and the center of gravity of the motor is H1, the vertical height from the top of the juicer to the bottom of the juicer is H2, and the range of H1:H2 is 0.05-0.

2.

9. The juicer according to claim 1, characterized in that: A battery and a battery compartment for accommodating the battery are provided in the host, and the battery is configured to discharge to the motor so that the motor drives the knife assembly to rotate.

10. The juicer according to claim 1, characterized in that: The motor is a brushless motor. The juicer also includes a knife seat arranged between the bottom opening of the cup body and the main unit. One end of the knife shaft is located in the cup body, and the other end passes through the knife seat and the motor in sequence.

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