Food processor

Abstract

The utility model discloses a food processor. The food processor comprises a food material container, a stirring knife assembly and a driving device. The food material container comprises a bottom cavity used for containing food materials, and the bottom cavity comprises a cutter shaft mounting part and a cavity wall surrounding the cutter shaft mounting part by a circle. The cavity wall is a rotating curved surface formed by rotating around the rotating center line of the stirring cutter assembly by a circle; the bottom cavity becomes smaller in the vertical direction towards the cutter shaft installation part. The stirring cutter assembly comprises a cutter shaft rotationally assembled with the center of the cutter shaft mounting part and a plurality of blades assembled on the cutter shaft. And the plurality of blades comprise a lower blade positioned in the bottom cavity. The driving device drives the cutter shaft, and the cutter shaft drives the lower blade to rotate in the bottom cavity. In the arrangement, food materials are gathered towards the cutter shaft mounting part along the cavity wall under the action of gravity, and meanwhile, the food materials are driven to move by the high-speed rotation of the lower blade to generate centrifugal force, so that the food materials can generate stable circulation in the bottom cavity, sufficient chopping is ensured, and the food materials are chopped more uniformly.

Description

Technical Field

[0001] The present application relates to the technical field of small household appliances, and in particular to a food processor. Background Art

[0002] A food processor includes a food container, a blender blade assembly, and a drive mechanism. The food container, for example, is a meat grinder bowl or a blender cup. The blades of the blender blade assembly are located within the food container. The drive mechanism (e.g., a motor) drives the blades to rotate within the food container, thereby processing the food.

[0003] In some designs, the food container includes a bottom wall and a side wall surrounding the bottom wall. The side wall is perpendicular to the bottom wall, thereby forming a 90-degree corner. When the mixing blade assembly chops the food, the food will quickly accumulate at the corner due to centrifugal force, and some food may not be chopped, resulting in uneven chopped food. Utility Model Content

[0004] The present application aims to disclose a food processor capable of chopping food more evenly.

[0005] The present application discloses a food processor. The food processor comprises a food container, a blending blade assembly, and a drive device. The food container comprises a bottom cavity for accommodating food, the bottom cavity comprising a blade shaft mounting portion and a cavity wall surrounding the blade shaft mounting portion. The cavity wall is a curved surface formed by rotating about the rotational centerline of the blending blade assembly. The bottom cavity narrows vertically toward the blade shaft mounting portion. The blending blade assembly comprises a blade shaft rotatably assembled with the center of the blade shaft mounting portion and a plurality of blades assembled to the blade shaft. The plurality of blades includes a lower blade located within the bottom cavity. The drive device drives the blade shaft, which drives the lower blade to rotate within the bottom cavity.

[0006] As described above, because the cavity wall is a curved surface formed by rotating about the rotation centerline of the stirring blade assembly, the bottom cavity narrows vertically toward the blade shaft mounting portion. The cavity wall is inclined relative to the horizontal plane, eliminating corners formed by the bottom wall and side walls of the container. Food will not accumulate at these corners, preventing some food from being chopped. Ultimately, food will not accumulate, but will instead gather along the inclined cavity wall toward the blade shaft mounting portion due to gravity. Simultaneously, the high-speed rotation of the lower blade of the stirring blade assembly drives the food, generating centrifugal force. Consequently, the food will experience stable circulation within the bottom cavity, ensuring sufficient and even chopped food.

[0007] In some embodiments, the lower blade includes a first lower blade and a second lower blade, wherein the first lower blade and the second lower blade are both inclined upward relative to a horizontal plane from a blade root portion connected to the blade shaft, and in the axial direction of the blade shaft, the blade root portion of the first lower blade is lower than the blade root portion of the second lower blade. The first lower blade and the second lower blade are staggered in the circumferential direction of the blade shaft; the projected height of the first lower blade partially overlaps the projected height of the second lower blade.

[0008] As set up as above, since the first lower blade and the second lower blade are staggered in the circumferential direction of the cutter shaft, and both are inclined upward relative to the horizontal plane from the root portion connected to the cutter shaft, the first lower blade and the second lower blade can cooperate to chop food within the axial height range corresponding to the cutter shaft, and because the root portion is inclined upward relative to the horizontal plane, the food on the cutter shaft mounting portion can be chopped. In addition, the root portion of the first lower blade is lower than the root portion of the second lower blade, and the projected height of the first lower blade partially overlaps with the projected height of the second lower blade. Food within the overlapping range can be chopped by the first lower blade and the second lower blade, so that food within a larger range can be chopped evenly and the chopping efficiency is high.

[0009] In some embodiments, on a radial plane of the cutter axis, a projection of the first lower blade and a projection of the second lower blade are symmetrical relative to the center of the cutter axis.

[0010] As set up above, since the projection of the first lower blade and the projection of the second lower blade are symmetrical relative to the center of the blade shaft on the radial plane of the blade shaft, it is beneficial to balance the force of the mixing blade assembly during rotation, and thus, it can better chop the food.

[0011] In some embodiments, the first lower blade and the second lower blade both include a blade tip, and a gap is formed between the first lower blade and the cavity wall, and between the second lower blade and the cavity wall, respectively; along the direction from the root of the blade to the blade tip, the width of the gap is equal everywhere, or the width of the gap gradually increases or decreases, and the difference between the minimum width and the maximum width is A, 0mm<A≤5mm.

[0012] In the above arrangement, since the width of the interval along the direction from the base to the tip is uniform, or the difference between the maximum and minimum widths is within the above range, compared to an arrangement where the interval increases from the base to the tip, the food is confined to a smaller space, and the first lower blade or the second lower blade is evenly stressed, making it easier to chop the food. In an embodiment where the width of the interval increases, food may be absent closer to the tip, while food may be more likely to accumulate closer to the base, making it difficult for the first lower blade or the second lower blade to chop the food. For example, the mixing blade assembly may be unable to rotate due to excessive food.

[0013] In some embodiments, the first lower blade and the second lower blade each include a blade root portion connected to the blade shaft. Of the first lower blade and the second lower blade, at least the first lower blade is inclined upward relative to a horizontal plane from the blade root portion to be curved, straight, or bent into multiple sections.

[0014] As described above, since at least the first lower blade of the first and second lower blades is inclined upward from the blade base relative to the horizontal plane and is in an arc shape, a straight line shape, or is bent into multiple sections, the food around the blade shaft at the blade shaft mounting portion can be more effectively chopped, ultimately achieving uniform chopped food. In comparison, a straight line shape or a bend into multiple sections is easier to manufacture than the arc shape.

[0015] In some embodiments, the minimum angle at which the first lower blade and the second lower blade are inclined upward relative to a horizontal plane is a, and 5 degrees ≤ a ≤ 30 degrees.

[0016] As set up above, since 5 degrees ≤ a ≤ 30 degrees, on the one hand, it ensures that the first lower blade and the second lower blade have sufficient height in the axial direction of the knife shaft to chop food within a larger height range. On the other hand, during use, the space between the first lower blade and the second lower blade and the inner wall of the food container is relatively small, which is conducive to the first lower blade and the second lower blade chopping food.

[0017] In some embodiments, the cavity wall of the bottom cavity is a rotational curved surface formed by an arc, a straight line, or a broken line rotating around the knife axis.

[0018] As described above, if the cavity wall is a rotating curved surface formed by rotating an arc, a straight line, or a folded line around the blade shaft, the food is more likely to be gathered toward the blade shaft mounting portion under the action of its own weight and cut by the lower blade, thereby facilitating more uniform shredding of the food. Furthermore, if the cavity wall and at least the first lower blade are both rotating curved surfaces formed by rotating an arc, a straight line, or a folded line around the blade shaft (i.e., as described above, the two have the same shape), the food is gathered toward the blade shaft mounting portion under the action of gravity and cut by the first and second lower blades, thereby further facilitating more uniform shredding of the food.

[0019] In some embodiments, the maximum depth of the bottom cavity is h, the maximum width of the bottom cavity is H, and h≤H≤4h.

[0020] As set above, since h≤H≤4h, the cavity wall has a sufficient slope, which is conducive to the food gathering along the cavity wall toward the knife shaft mounting portion, so that the food is chopped evenly.

[0021] In some embodiments, when the cavity wall is a rotational curved surface formed by a fold line rotating around the knife axis, the fold line includes at least two segments, and the angle formed by adjacent segments is b, 120 degrees ≤ b ≤ 160 degrees.

[0022] As configured above, since the angle b between adjacent segments satisfies 120 degrees ≤ b ≤ 160 degrees, the cavity wall has a sufficient slope, which is conducive to the food gathering along the cavity wall toward the knife shaft mounting portion, so that the food is chopped evenly.

[0023] In some embodiments, the food container includes an upper cavity, which is connected to the bottom cavity. The multiple blades include an upper blade located in the upper cavity. The upper blade and the lower blade are spaced axially from each other and staggered circumferentially on the blade shaft. The driving device drives the upper blade to rotate in the upper cavity.

[0024] As described above, since the mixing blade assembly further includes upper blades, and the upper blades are located in the upper cavity, spaced axially and staggered circumferentially from the blade shaft, the drive device drives the upper and lower blades to rotate, thereby enabling food at different locations to be cut by corresponding blades. The mixing blade assembly can chop food over a wider range of heights, resulting in more uniform chopping.

[0025] In some embodiments, the upper blade includes a first upper blade and a second upper blade, the first upper blade is located below the second upper blade; on the radial plane of the blade axis, the projection of the first upper blade and the projection of the second upper blade are symmetrical relative to the center of the blade axis.

[0026] As described above, since the upper blade comprises a first upper blade and a second upper blade, as well as the aforementioned first and second lower blades, four blades are spaced axially along the blade shaft, providing a wider range of cutting heights. Combined with the aforementioned bottom cavity structure, the food processor can chop more ingredients uniformly. Furthermore, the projections of the first upper blade and the second upper blade are symmetrical relative to the center of the blade shaft, facilitating force balance during the rotation of the mixing blade assembly, thereby enabling better chopping of ingredients.

[0027] In some embodiments, the upper cavity is through-shaped and includes a cavity side wall; the cavity side wall is tangent to the cavity wall of the bottom cavity and connected at the tangent point, the cavity side wall is connected to the cavity wall of the bottom cavity through an arc portion, or the cavity side wall is inclined toward the outside of the bottom cavity and forms an obtuse angle with the cavity wall of the bottom cavity.

[0028] As set up above, the above three implementation methods can ensure that there will be no corners at the connection between the cavity side wall of the upper cavity and the cavity wall of the bottom cavity. When there is a lot of food, it is also convenient for the food to move downward along the cavity wall of the bottom cavity under the action of gravity and gather towards the knife shaft mounting part, and combined with the rotation of the mixing knife assembly, it is ensured that the food is chopped evenly.

[0029] In some embodiments, the upper blade is inclined relative to the horizontal plane in an arc shape or a broken line shape, or the upper blade is parallel to the horizontal plane.

[0030] As set up above, since the upper blade is inclined in an arc shape relative to the horizontal plane and is in a broken line shape, food in a larger height range can be chopped. Therefore, combined with the setting of the cavity wall of the bottom cavity, even if there is a lot of food, it can be chopped evenly.

[0031] In some embodiments, the food container includes a plurality of spoiler ribs, which are distributed at intervals in the circumferential direction of the food container, and each of the spoiler ribs extends along the cavity side wall of the upper cavity in the depth direction of the upper cavity, and also extends toward the knife axis on the cavity wall of the bottom cavity; or, the spoiler ribs are only arranged on the cavity side wall of the upper cavity, and the spoiler ribs are arranged at intervals in the circumferential direction of the upper cavity, and each of the spoiler ribs extends along the depth direction of the upper cavity.

[0032] As described above, by providing the flow-disturbing ribs, the flow-disturbing effect of the ribs, combined with the fact that the food is gathered along the cavity wall toward the blade shaft mounting portion, allows for more uniform chopped food. Of course, if the flow-disturbing ribs also extend along the cavity wall of the bottom cavity toward the blade shaft, more food is disturbed, resulting in more uniform chopped food. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1is a cross-sectional view of a food processor according to an embodiment of the present application, the food processor including a first food container and a first stirring blade assembly;

[0034] Figure 2 is a perspective view of an assembly consisting of a first food container and a stirring blade assembly according to an embodiment of the present application;

[0035] Figure 3 is a side view of a first food container according to an embodiment of the present application;

[0036] Figure 4 yes Figure 3 Bottom view of

[0037] Figure 5 yes Figure 3 A top view of

[0038] Figure 6 It is along Figure 5 Cross-sectional view of line AA;

[0039] Figure 7 is a cross-sectional view of an assembly consisting of a second food container and supporting legs according to an embodiment of the present application;

[0040] Figure 8 is a top view of a first stirring blade assembly according to an embodiment of the present application;

[0041] Figure 9 It is along Figure 8 Cross-sectional view along the midline BB;

[0042] Figure 10 is a schematic diagram of a second stirring blade assembly according to an embodiment of the present application;

[0043] Figure 11 yes Figure 10 A left side view of the second mixing blade assembly is shown;

[0044] Figure 12 is a schematic diagram of a third stirring blade assembly according to an embodiment of the present application;

[0045] Figure 13 yes Figure 12 A left side view of the third mixing blade assembly is shown;

[0046] Figure 14 is a schematic diagram of a fourth stirring blade assembly according to an embodiment of the present application;

[0047] Figure 15 yes Figure 14 A front view of a fourth stirring blade assembly is shown;

[0048] Figure 16 yes Figure 14 A left side view of the fourth mixing blade assembly is shown;

[0049] Figure 17 This is a cross-sectional view of a food processor in the related art. DETAILED DESCRIPTION

[0050] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0051] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0052] See also Figure 1 The present application discloses a food processor, which includes a food container 1, a stirring blade assembly 2, and a driving device 3. Figure 1 The food processor shown is a meat grinder. Technicians can understand that the food processor is not limited to a meat grinder, but can also be a soy milk machine, a vegetable grinder, etc.

[0053] See also Figure 1 、 Figure 2 、 Figure 6 and Figure 7 The food container 1 includes a bottom cavity 11 for accommodating food. The bottom cavity 11 includes a knife shaft mounting portion 110 and a cavity wall 111 surrounding the knife shaft mounting portion 110. The knife shaft mounting portion 110 can be as follows. Figure 6 As shown, it is arc-shaped. At this time, the inner surface of the knife shaft mounting portion 110 is an arc surface, which is consistent with the Figure 6 The cavity wall 111 shown in the figure forms an arc surface, which can also be a spherical surface. Figure 7 As shown, it is flat, of course, as Figure 7 When the knife shaft mounting portion 110 is as shown, the cavity wall 111 can also be as shown. Figure 6 The shape shown. The technicians can understand that the knife shaft mounting portion 110 is used to mount the knife shaft 21, which is smaller in size. Figures 5 to 7The cavity wall 111 is a rotating curved surface formed by rotating around the rotation center line of the stirring blade assembly. The rotation center of the stirring blade assembly 2 can be understood as the blade shaft 21 of the stirring blade assembly 2. The bottom cavity 11 becomes smaller in the vertical direction toward the blade shaft mounting portion 110. Figure 1 and Figure 6 , the reduction can be gradual; see Figure 7 , the cavity wall 111 of the bottom cavity 11 includes a first cavity wall formed by rotating the first straight line 1111 and a second cavity wall formed by rotating the second straight line 1112. One of the first straight line 1111 and the second straight line 1112 is bent relative to the other. The first cavity wall 111 forms a through first truncated cone, and the second cavity wall forms a through second truncated cone. The shrinking may also be gradually shrinking in the first truncated cone part and gradually shrinking in the second truncated cone part, but the first truncated cone to the second truncated cone are considered as a whole, and the whole is not gradually shrinking. In addition, the shrinking may not be gradually shrinking, as long as it can achieve the effect described later. The shape of the rotating curved surface is not limited, as long as it can reduce the bottom cavity 11 to achieve the subsequent effect.

[0054] See also Figure 1 、 Figure 2 、 Figures 8 to 16 The mixing blade assembly 2 includes a blade shaft 21 rotatably assembled with the center of the blade shaft mounting portion 110 and a plurality of blades assembled on the blade shaft. Figure 5 The diagram shows that a through hole 1102 for mounting a rotating shaft 1101 is provided at the center of the blade shaft mounting portion 110; Figure 6 and Figure 7 The rotating shaft 1101 is shown to be installed in the through hole 1102. The blade shaft 21 is sleeved with the rotating shaft 1101 to realize the central rotation assembly of the blade shaft 21 and the blade shaft mounting portion 110. Of course, the rotation assembly is not limited to this, as long as it can make the stirring blade assembly 2 rotate. The multiple blades include a lower blade 22 located in the bottom cavity 11. The structure of the stirring blade assembly 2 is not limited, as long as it can stir (such as chop) the food. For example, except Figures 9 to 16 While the multiple blades shown in the figure include inclined blades, those skilled in the art will appreciate that all blades of the stirring blade assembly 2 may also be parallel to the horizontal direction. Parallel blades primarily refer to blades positioned horizontally, and their structure is not limited. The drive device 3 drives the blade shaft 21, which in turn drives the lower blade 22 to rotate within the bottom cavity 11.

[0055] As described above, since the cavity wall 111 is inclined relative to the horizontal plane and is a rotational curved surface; the rotational curved surface is a curved surface formed by rotating around the rotation center line of the stirring blade assembly, the bottom cavity 11 becomes smaller in the vertical direction toward the blade shaft mounting portion 110. Figure 17As shown in the corner 190 formed by the container bottom wall 191 and the container side wall 192, the ingredients will not accumulate at the corner 190, causing some ingredients to be unable to be chopped. In the end, the ingredients will not accumulate, but will gather along the cavity wall 111 toward the knife shaft mounting portion 110 due to their own gravity. At the same time, the high-speed rotation of the lower blade 22 of the stirring knife assembly 2 drives the ingredients to move and generates centrifugal force. As a result, the ingredients will produce a stable circulation in the bottom cavity 11, ensuring sufficient chopping and more uniform chopping of the ingredients.

[0056] See also Figure 1 、 Figure 2 as well as Figures 9 to 16 The lower blade 22 includes a first lower blade 221 and a second lower blade 222. The first lower blade 221 and the second lower blade 222 can be two blades or a single blade connected as one. The first lower blade 221 and the second lower blade 222 are both inclined upward relative to the horizontal plane from the blade root portion 211 connected to the blade shaft 21. The blade root portion 211 can be as shown in FIG. Figures 10 to 15 In this way, the blade shaft 21 begins to tilt upward relative to the horizontal plane. In other embodiments, the blade root portion 211 can also be parallel to the horizontal plane. In this case, the first lower blade 221 and the second lower blade 222 are each tilted relative to the horizontal plane from their respective blade root portions 211. In this case, the width of the blade root portion 211 can be equal to the diameter of the blade shaft mounting portion 110, or it can be greater than the preset diameter value of the blade shaft mounting portion 110. Figure 1 、 Figures 9 to 13 as well as Figure 15 It is illustrated that the inclination angle of the first lower blade 221 and the inclination angle of the second lower blade 222 can be equal, and the equality refers to the equality of the corresponding parts. Technicians can understand that the inclination angle of the first lower blade 221 and the inclination angle of the second lower blade 222 may also be unequal. For example, the angle at which the second lower blade 222 is inclined upward relative to the horizontal plane is greater than the angle at which the first lower blade 221 is inclined upward relative to the horizontal plane. In the axial direction of the knife shaft, the root portion 211 of the first lower blade 221 is lower than the root portion of the second lower blade 222. The first lower blade 221 and the second lower blade 222 are staggered in the circumferential direction of the knife shaft 21. The projected height of the first lower blade 221 partially overlaps with the projected height of the second lower blade 222.

[0057] As set up as above, since the first lower blade 221 and the second lower blade 222 are staggered in the circumferential direction of the blade shaft 21, and both are inclined upward relative to the horizontal plane from the root portion 211 connected to the blade shaft 21, the first lower blade 221 and the second lower blade 222 can cooperate to chop the food within the axial height range corresponding to the blade shaft 21. The mixing blade assembly covers a large height during the whipping process, which is conducive to chopping the food. Moreover, because it is inclined upward relative to the horizontal plane from the root portion 211, it can chop the food around the blade shaft mounting portion 110. In addition, the root portion 211 of the first lower blade 221 is lower than the root portion 211 of the second lower blade 222, and the projected height of the first lower blade 221 partially overlaps with the projected height of the second lower blade 222. The food within the overlapping range can be chopped by the first lower blade 221 and the second lower blade 222, so that food in a larger range is chopped evenly and the chopping efficiency is high.

[0058] See also Figure 10 、 Figure 12 and Figure 15 In the axial direction of the blade shaft 21, the projected height of the first lower blade 221 and the projected height of the second lower blade 222 partially overlap. The figure shows that the overlapping height is M.

[0059] As set up above, since the projection height of the first lower blade 221 and the projection height of the second lower blade 222 partially overlap, it can be understood that the ingredients can be beaten twice at the same position. Combined with the rotation of the mixing blade assembly 2, ingredients in other places are also brought to the overlapping part, so that the ingredients are fully beaten and chopped more evenly.

[0060] See also Figures 10 to 16 , the shape of the first lower blade 221 is the same as the shape of the second lower blade 222. Figure 8 On the radial plane of the cutter shaft 21 , the projection of the first lower blade 221 and the projection of the second lower blade 222 are symmetrical relative to the center of the cutter shaft 21 .

[0061] As set up above, since the projection of the first lower blade 221 and the projection of the second lower blade 222 are symmetrical relative to the center of the blade shaft 21 on the radial plane of the blade shaft 21, it is beneficial to balance the forces of the mixing blade assembly 2 during rotation, and thus, the food can be better chopped.

[0062] See also Figure 1The first lower blade 221 and the second lower blade 222 each include a blade tip. A gap 1110 is formed between the first lower blade 221 and the cavity wall 111, and between the second lower blade 222 and the cavity wall 111. The widths of the gaps 1110 are uniform along the direction from the blade root 211 to the blade tip. That is, the width of the gap 1110 between the first lower blade 221 and the cavity wall 111 is uniform, and the width of the gap 1110 between the second lower blade 222 and the cavity wall 111 is uniform. As a variation of the above embodiment, the width of the interval 1110 gradually increases from the root 211 to the tip of the blade, and the difference between the minimum width and the maximum width is A, 0mm<A≤5mm, or gradually decreases, and the difference between the minimum width and the maximum width is A, 0mm<A≤5mm, for example, 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.3mm, 2.5mm, 2.8mm, 3mm, 3.3mm, 3.5mm, 3.8mm, 4mm, 4.3mm, 4.5mm, 4.8mm or 5mm. Figure 1 In the embodiment, the distance between the blade tip and the cavity wall 111 is the minimum width d1, and the distance between the blade root 211 and the cavity wall 111 is the maximum width D1. In this case, A = D1 - d1. In other embodiments, the distance between the blade tip and the cavity wall 111 is the maximum width D1, and the distance between the blade root 211 and the cavity wall 111 is the minimum width d1. In this case, A = D1 - d1. Similarly, the maximum and minimum widths between the second lower blade 222 and the cavity wall 111 also exist in the above two situations, but A = D2 - d2.

[0063] As described above, since the width of the interval along the direction from the base 211 to the blade tip is uniform, or the difference between the maximum width and the minimum width is within the above range, compared to an embodiment in which the interval increases from the base 211 to the blade tip, the food is confined to a smaller space, and the first lower blade 221 or the second lower blade 222 is evenly stressed, making it easier to chop the food. In an embodiment in which the width of the interval increases, food may be absent closer to the blade tip, and food may be more likely to concentrate closer to the base 211, making it difficult for the first lower blade 221 or the second lower blade 222 to chop the food. For example, the mixing blade assembly 2 may be unable to rotate due to excessive food.

[0064] See also Figures 9 to 13The first lower blade 221 and the second lower blade 222 both include a blade root portion 211 connected to the blade shaft 21. In the first lower blade 221 and the second lower blade 222, the first lower blade 221 and the second lower blade 222 are both inclined upward from the blade root portion 211 relative to the horizontal plane to form an arc shape. In other embodiments, the first lower blade 221 and the second lower blade 222 can also be inclined upward from the blade root portion 211 relative to the horizontal plane to form a straight line, which can be seen in FIG. Figure 14 To understand, Figure 14 The diagram shows that the flat blade is folded into two sections, and the straight-line blade 221 and the second lower blade 222 are in the shape of a flat plate without being bent. Figures 14 to 16 , the first lower blade 221 and the second lower blade 222 are both tilted upward relative to the horizontal plane from the root portion 211 and bent into two sections to achieve the folded line shape, and a flat blade can be folded into two sections. These two sections are marked as the first bending section 2211 and the second bending section 2212, or a non-flat blade can be folded into two sections. The number of bent sections is not limited to the two sections shown in the figure, and can be three sections, four sections, and so on. In some embodiments, the second lower blade 222 may not be tilted upward relative to the horizontal plane to be in an arc shape, a straight line shape, or bent into multiple sections, and only the first lower blade 221 is relative to the horizontal plane. In the aforementioned embodiment, the root portion 211 is tilted relative to the horizontal plane so that the first lower blade 221 and the second lower blade 222 are respectively in an arc shape, a straight line shape, or a folded line shape as a whole. Technicians can understand that, as mentioned above, in some embodiments, the root portion 211 may also be located in the horizontal direction.

[0065] As described above, since at least the first lower blade 221 of the first lower blade 221 and the second lower blade 222 is inclined upward from the horizontal plane from the blade root portion 211 to form an arc, a straight line, or is bent into multiple sections, the food around the blade shaft 21 at the blade shaft mounting portion 110 can be more effectively chopped, ultimately ensuring uniform chopped food. In comparison, a straight line or a multiple-section bend is easier to manufacture than the arc.

[0066] See also Figure 9 and Figure 10 When the first lower blade 221 and the second lower blade 222 are inclined upward relative to the horizontal plane in an arc shape, the minimum inclination angle of the first lower blade 221 and the second lower blade 222 relative to the horizontal plane is a, 5 degrees ≤ a ≤ 30 degrees. For example, 5 degrees, 7 degrees, 9 degrees, 10 degrees, 12 degrees, 13 degrees, 15 degrees, 17 degrees, 19 degrees, 20 degrees, 23 degrees, 25 degrees, 28 degrees or 30 degrees. Figure 15When the first lower blade 221 and the second lower blade 222 are inclined upward relative to the horizontal plane in a broken line shape, 5 degrees ≤ a ≤ 30 degrees also exists.

[0067] As set above, since 5 degrees ≤ a ≤ 30 degrees, on the one hand, it ensures that the first lower blade 221 and the second lower blade 222 have sufficient height in the axial direction of the knife shaft 21, and can chop food within a larger height range. On the other hand, during use, the space between the first lower blade 221 and the second lower blade 222 and the inner wall of the food container is relatively small, which is conducive to the first lower blade 221 and the second lower blade 222 chopping food, for example, ultimately making the food chopped evenly.

[0068] See also Figure 1 and Figure 6 The cavity wall of the bottom cavity 11 is a rotational curved surface formed by an arc rotating around the knife shaft 21. Of course, it can also be a rotational curved surface formed by a straight line rotating around the knife shaft 21. Figure 7 It is shown that the cavity wall of the bottom cavity 11 is a rotating curved surface formed by a broken line rotating around the knife shaft 21. Figure 7 It is shown that a straight line has a bend to form a broken line, and the broken line is formed by connecting the first straight line 1111 and the second straight line 1112. It should be noted here that: Figure 1 In the case where the cavity wall 111 of the bottom cavity 11 is a rotating curved surface formed by rotating an arc, the first lower blade 221 and / or the second lower blade 222 can be tilted upward relative to the horizontal plane and have an arc shape. Based on this inspiration, it can be understood that the shape formed by the rotation of the lower blade 22 (the first lower blade 221 or the second lower blade 222) can be the same as the shape of the cavity wall 111. However, in some embodiments, the shape formed by the rotation of the first lower blade 221 or the second lower blade 222 can be different from the shape of the cavity wall 111.

[0069] As described above, when the cavity wall 111 is a rotating curved surface formed by rotating an arc, a straight line, or a broken line around the blade shaft 21, the food is more likely to gather toward the blade shaft mounting portion 110 under the action of its own gravity and be cut by the lower blade 22, thereby facilitating the food to be chopped more evenly. Furthermore, when the cavity wall 111 and at least the first lower blade 221 are both rotating curved surfaces formed by rotating an arc, a straight line, or a broken line around the blade shaft (i.e., as described above, the two have the same shape), the food is gathered toward the blade shaft mounting portion 110 under the action of gravity and is cut by the first lower blade 221 and the second lower blade 222, thereby facilitating more even chopped food.

[0070] See also Figure 1 , the maximum depth of the bottom cavity 11 is h, the maximum width of the bottom cavity 11 is H, and h≤H≤4h.

[0071] As set above, since h≤H≤4h, the cavity wall has a sufficient slope, which is conducive to the food gathering along the cavity wall toward the knife shaft mounting portion, so that the food is chopped evenly.

[0072] See also Figure 7 In the case where the cavity wall 111 is a rotational curved surface formed by a fold line rotating around the knife axis, the fold line includes at least two segments, and the angle formed by adjacent segments is b, 120 degrees ≤ b ≤ 160 degrees. Of course, in this case, the shapes of the first lower blade 221 and the second lower blade 222 can also be as follows Figures 14 to 16 In the case of a broken line, the angle formed by adjacent segments can also be b. It is also not necessary to be in this state.

[0073] As configured above, since the angle b between adjacent segments satisfies 120 degrees ≤ b ≤ 160 degrees, the cavity wall has a sufficient slope, which is conducive to the food gathering along the cavity wall toward the knife shaft mounting portion, so that the food is chopped evenly.

[0074] See also Figure 8 、 Figures 10 to 16 Combined with Figure 1 and Figure 2 The food container 1 includes an upper cavity 12. The upper cavity 12 is connected to the bottom cavity 11. The multiple blades include an upper blade 23 located in the upper cavity 12. The upper blade 23 and the lower blade 22 are spaced apart in the axial direction of the blade shaft 21 and staggered in the circumferential direction. The number of the upper blades 23 is not limited to the first upper blade 231 and the second upper blade 232 as shown in the figure, and there may also be only one blade, etc. The driving device 3 drives the upper blade 23 to rotate in the upper cavity 12.

[0075] As described above, since the mixing blade assembly 2 further includes an upper blade 23, and the upper blade 23 is located in the upper cavity 12, spaced axially and staggered circumferentially from the blade shaft 21, the drive device 3 drives the upper blade 23 and the lower blade 22 to rotate, thereby enabling food at different locations to be cut by the corresponding blades. The mixing blade assembly can chop food over a wider range of heights, resulting in more uniform chopping.

[0076] See also Figures 8 to 16 Combined with Figure 1 and Figure 2The upper blade 23 includes a first upper blade 231 and a second upper blade 232, and the first upper blade 231 is located below the second upper blade 232; on the radial plane of the blade shaft 21, the projection of the first upper blade 231 and the projection of the second upper blade 232 are symmetrical relative to the center of the blade shaft 21, that is, the first upper blade 231 and the second upper blade 232 constitute an S blade. In this case, the blade assembly of the mixing blade assembly 2 is a four-leaf blade.

[0077] As described above, since the upper blade 23 comprises a first upper blade 231 and a second upper blade 232, and the lower blade 22 of the mixing blade assembly 2 comprises a first lower blade 221 and a second lower blade 222, four blades are spaced axially along the blade shaft 21, providing a wider range of cutting heights. Combined with the structure of the bottom cavity 11, the food processor can chop more ingredients uniformly. Furthermore, the projections of the first upper blade 231 and the second upper blade 232 are symmetrical relative to the center of the blade shaft, facilitating force balance during the rotation of the mixing blade assembly 2, thereby achieving better chopping of ingredients.

[0078] See also Figure 1 and Figure 6 and Figure 2 and Figure 3 The upper cavity 12 is through-shaped and includes a cavity sidewall 121. The cavity sidewall 121 is tangent to the cavity wall 111 of the bottom cavity 11 and connected at the tangent point. Figure 7 The cavity sidewall 121 is connected to the cavity wall 111 of the bottom cavity 11 via an arc portion 122. In other embodiments, the cavity sidewall 121 is inclined toward the outside of the bottom cavity 11 and forms an obtuse angle with the cavity wall 111 of the bottom cavity 11.

[0079] As described above, the above three embodiments can ensure that the connection between the cavity side wall 121 of the upper cavity 12 and the cavity wall 111 of the bottom cavity 11 will not occur. Figure 17 The corner 190 shown also facilitates the downward movement of the food along the cavity wall 111 of the bottom cavity 11 under the action of gravity when there is a lot of food, thereby ensuring that the food is chopped evenly.

[0080] See also Figures 10 to 13 The upper blade 23 is inclined in an arc shape relative to the horizontal plane. Figure 10 and Figure 11 The diagram shows that the first upper blade 231 and the second upper blade 232 of the upper blade 23 are both inclined downward in an arc shape. Figure 12 and Figure 13 The first upper blade 231 and the second upper blade 232 are both tilted upwards in an arc shape. Figures 10 to 13 The revelation and combination Figure 15 The shape of the lower blade 22 shown in FIG. 2 is understood by a skilled person that in some embodiments, the upper blade 23 may also be inclined relative to the horizontal plane to form a broken line shape. Based on the above inspiration, the broken line shape can be referred to as Figure 15 and Figure 16 The shapes of the first lower blade 221 and the second lower blade 222 are shown. Figures 10 to 13 The diagram shows that all blades of the upper blades 23 have the same inclination direction. In some embodiments, the inclination directions may be different. For example, the first upper blade 231 is inclined downward, and the second upper blade 232 is inclined upward. In short, when there are multiple upper blades 23, at least one is inclined relative to the horizontal plane. Figure 1 、 Figure 9 、 Figures 14 to 16 , the upper blade 23 is parallel to the horizontal plane.

[0081] As described above, since the upper blade 23 is inclined relative to the horizontal plane in an arc shape and a broken line shape, food within a larger height range can be chopped. Therefore, combined with the setting of the cavity wall 111 of the bottom cavity 11, even if there is a lot of food, it can be chopped evenly.

[0082] The structures of the first upper blade 231 and the second upper blade 232 may be the same as or different from the structures of the first lower blade 221 and the second lower blade 222 .

[0083] In some embodiments, the root portion 211 of the first lower blade 221 is lower than the root portion 211 of the second lower blade 222 ; the upper blade 23 includes a first upper blade 231 ; and the projection height of the second lower blade 222 partially overlaps with the projection height of the first upper blade 231 . Figure 11 and Figure 13 The height of the overlapping portion is shown as m. Those skilled in the art will appreciate that, on the radial plane of the blade shaft 21 , the projected height of the second upper blade 232 and the projected height of the first upper blade 231 may overlap or not overlap.

[0084] As set up above, since the projection height of the second lower blade 222 and the projection height of the first upper blade 231 partially overlap, it can be understood that the ingredients can be beaten twice at the same position. Combined with the rotation of the mixing blade assembly 2, ingredients in other places are also brought to the overlapping part, so that the ingredients are fully beaten and chopped more evenly.

[0085] See also Figure 2 and Figure 5 The food container 1 includes a plurality of spoiler ribs 13 . Figure 2 and Figure 5Four spoiler ribs 13 are shown. However, the number of spoiler ribs 13 is not limited thereto. For example, the number of spoiler ribs 13 can be 2 to 8. The spoiler ribs 13 are spaced apart circumferentially around the food container 1 . Each spoiler rib 13 extends along the depth direction of the upper cavity 12 along the cavity sidewall 121 of the upper cavity 12 and also extends along the cavity wall 111 of the bottom cavity 11 toward the blade shaft 21.

[0086] See also Figure 7 The spoiler ribs 13 are only provided on the cavity sidewalls 121 of the upper cavity 12 , the spoiler ribs are arranged at intervals along the circumference of the upper cavity, and each of the spoiler ribs 13 extends along the depth direction of the upper cavity 12 .

[0087] As described above, by providing the flow-disturbing ribs 13, the flow-disturbing effect of the flow-disturbing ribs 13, combined with the fact that the food is gathered along the cavity wall 111 toward the blade shaft mounting portion 110, allows for more uniform food chopping. Of course, if the flow-disturbing ribs 13 also extend from the cavity wall 111 of the bottom cavity 11 toward the blade shaft 21, more food is disturbed, thereby achieving more uniform food chopping.

[0088] See also Figures 2 to 4 The food processor further includes a plurality of support legs 4, each of which includes a first support portion 41 and a second support portion 42. The second support portions 42 intersect with each other, with the intersection being located directly below the blade shaft 21. The intersection is not limited to a cross as shown in the figure; it can be three, with all support legs 4 enclosing a support space. The food container 1 is located within the support space, in contact with the first support portion 41 and the second support portion 42.

[0089] As described above, by providing a plurality of supporting legs 4, the food container 1 is located in the supporting space, in contact with the first supporting portion 41 and the second supporting portion 42, and the second supporting portion 42 intersects. In this way, the supporting legs 4 have multiple contact areas with the food container 1, and the support is stable.

[0090] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A food processor, characterized in that: The food processor comprises a food container (1), a stirring blade assembly (2) and a driving device (3); wherein: The food container (1) comprises a bottom cavity (11) for accommodating food, the bottom cavity (111) comprising a blade shaft mounting portion (110) and a cavity wall (111) surrounding the blade shaft mounting portion (110); the cavity wall (111) is a rotating curved surface that rotates around the rotation center line of the stirring blade assembly (2); the bottom cavity (11) becomes smaller in a vertical direction toward the blade shaft mounting portion (110); The stirring blade assembly (2) comprises a blade shaft (21) rotatably assembled with a blade shaft mounting portion (110) and a plurality of blades assembled on the blade shaft (21); the plurality of blades comprises a lower blade (22) located in the bottom cavity (11); The driving device (3) drives the knife shaft (21), and the knife shaft (21) drives the lower blade (22) to rotate in the bottom cavity (11).

2. The food processor according to claim 1, wherein: The lower blade (22) comprises a first lower blade (221) and a second lower blade (222), wherein the first lower blade (221) and the second lower blade (222) are both inclined upward relative to a horizontal plane from a blade root portion (211) connected to the blade shaft (21); In the axial direction of the cutter shaft (21), the root portion (211) of the first lower blade (221) is lower than the root portion (211) of the second lower blade (222), and the first lower blade (221) and the second lower blade (222) are staggered in the circumferential direction of the cutter shaft (21); The projection height of the first lower blade (221) partially overlaps with the projection height of the second lower blade (222).

3. The food processor according to claim 2, wherein: On a radial plane of the cutter shaft (21), a projection of the first lower blade (221) and a projection of the second lower blade (222) are symmetrical relative to the center of the cutter shaft (21).

4. The food processor according to claim 2, wherein: The first lower blade (221) and the second lower blade (222) both include a blade tip, and a gap (1110) is formed between the first lower blade (221) and the cavity wall (111), and between the second lower blade (222) and the cavity wall (111), respectively; along the direction from the blade root (211) to the blade tip, the width of the gap (1110) is equal everywhere, or the width of the gap (1110) gradually increases or decreases, and the difference between the minimum width and the maximum width is A, 0mm<A≤5mm.

5. The food processor according to claim 2, wherein: The first lower blade (221) and the second lower blade (222) both include a blade root portion (211) connected to the blade shaft (21); of the first lower blade (221) and the second lower blade (222), at least the first lower blade (221) is inclined upward relative to a horizontal plane from the blade root portion (211) and is in an arc shape, a straight line shape, or is bent into multiple sections.

6. The food processor according to claim 5, characterized in that: The minimum angle at which the first lower blade (221) and the second lower blade (222) are inclined upward relative to a horizontal plane is a, and 5 degrees ≤ a ≤ 30 degrees.

7. The food processor according to claim 1, wherein: The cavity wall (111) of the bottom cavity (11) is a rotating curved surface formed by rotating an arc, a straight line or a broken line around the knife axis. And / or, the maximum depth of the bottom cavity is h, the maximum width of the bottom cavity is H, and h≤H≤4h.

8. The food processor according to claim 7, wherein: In the case where the cavity wall (111) is a rotational curved surface formed by a broken line rotating around the knife axis, the broken line includes at least two segments, and the angle formed by adjacent segments is b, 120 degrees ≤ b ≤ 160 degrees.

9. The food processor according to claim 1, wherein: The food container (1) comprises an upper cavity (12), the upper cavity (12) being communicated with the bottom cavity (11), the multiple blades comprising an upper blade (23) located in the upper cavity (12), the upper blade (23) and the lower blade (22) being spaced axially from each other on the blade shaft (21) and staggered circumferentially; the driving device (3) drives the upper blade (23) to rotate in the upper cavity (12).

10. The food processor according to claim 9, characterized in that: The upper blade (23) comprises a first upper blade (231) and a second upper blade (232), wherein the first upper blade (231) is located below the second upper blade (232); on a radial plane of the blade axis (21), a projection of the first upper blade (231) and a projection of the second upper blade (232) are symmetrical relative to the center of the blade axis (21); And / or, the upper cavity (12) is through-shaped and includes a cavity side wall (121); the cavity side wall (121) is tangent to the cavity wall (111) of the bottom cavity (11) and connected at the tangent point; the cavity side wall (121) is connected to the cavity wall (111) of the bottom cavity (11) via an arc portion (122); or the cavity side wall (121) is inclined toward the outside of the bottom cavity (11) and forms an obtuse angle with the cavity wall (111) of the bottom cavity (11).

11. The food processor according to claim 9, wherein: The upper blade (23) is inclined upward relative to the horizontal plane in an arc shape or a broken line shape, or the upper blade is inclined downward relative to the horizontal plane in an arc shape or a straight line shape, or the upper blade (23) is parallel to the horizontal plane.

12. The food processor according to claim 9, wherein: The food container (1) comprises a plurality of spoiler ribs (13), the spoiler ribs (13) being distributed at intervals in the circumferential direction of the food container (1), and each of the spoiler ribs (13) extending along the depth direction of the upper cavity (12) on the cavity side wall (121) of the upper cavity (12), and also extending on the cavity wall (111) of the bottom cavity (11) toward the knife shaft (21); Alternatively, each of the spoiler ribs (13) extends only along the depth direction of the upper cavity (12) on the cavity side wall (121) of the upper cavity (12).

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