CN220529838U - Stirring knife assembly and cooking machine - Google Patents

Abstract

The application provides a stirring sword subassembly and cooking machine. The stirring blade assembly includes: a rotating shaft; the first knife assembly comprises a first mounting sleeve sleeved on the rotating shaft and a first blade arranged on the first mounting sleeve, one of the rotating shaft and the first mounting sleeve is provided with a wavy annular guide groove along the circumferential direction, the other one of the rotating shaft and the first mounting sleeve is provided with a convex part matched with the annular guide groove, when the rotating shaft rotates, the convex part slides in the annular guide groove to enable the first knife assembly to rotate around the rotation center line of the rotating shaft, and meanwhile, the first knife assembly reciprocates up and down along the rotating shaft; when the first blade assembly moves to the lowest point, the distance between the lowest point of the first blade and the lower end surface of the rotating shaft is between 1 millimeter and 15 millimeters. In this way, in the up-and-down reciprocating motion of the first knife assembly, the first knife blade can cut up food materials with different heights, so that the thickness of the crushed food materials of the food processor is more uniform.

Description

Stirring knife assembly and cooking machine

Technical Field

The application relates to the field of food processing, in particular to a stirring knife assembly and a cooking machine.

Background

With the increasing level of living of people, many different types of food processing machines appear on the market. The functions of the food processor mainly include, but are not limited to, the functions of beating soybean milk, squeezing juice, mincing meat stuffing, shaving ice, making coffee, and/or preparing facial masks. A food processor, such as a meat grinder, comprises a food material container, a container cover covered on the food material container, a stirring knife assembly positioned in the food material container and a host machine arranged on the container cover. The existing food processor has single function and can not meet the requirements of processing different food materials.

Disclosure of Invention

An object of the application is to provide a stirring sword subassembly and cooking machine, can handle different food materials.

In one aspect, the present application provides a blender blade assembly. The stirring blade assembly includes: a rotating shaft; the first knife assembly comprises a first mounting sleeve sleeved on the rotating shaft and a first blade arranged on the first mounting sleeve, one of the rotating shaft and the first mounting sleeve is provided with a wavy annular guide groove along the circumferential direction, the other one of the rotating shaft and the first mounting sleeve is provided with a convex part matched with the annular guide groove, when the rotating shaft rotates, the convex part slides in the annular guide groove to enable the first knife assembly to rotate around the rotation center line of the rotating shaft, and meanwhile, the first knife assembly reciprocates up and down along the rotating shaft; when the first blade assembly moves to the lowest point, the distance between the lowest point of the first blade and the lower end surface of the rotating shaft is between 1 millimeter and 15 millimeters. Because one of the rotating shaft and the first mounting sleeve is provided with the wavy annular guide groove along the circumferential direction, the other is provided with the convex part matched with the annular guide groove, when the rotating shaft rotates, the groove wall of the annular guide groove applies component force along the rotating direction of the rotating shaft to the convex part, and meanwhile, the acting force of the food material on the first knife assembly and the gravity of the first knife assembly (when the first knife assembly moves downwards along the annular guide groove) enable the first knife assembly to reciprocate up and down along the rotating shaft while rotating around the rotating center line of the rotating shaft. In this way, in the up-and-down reciprocating motion of the first knife assembly, the first knife blade can cut up food materials with different heights, so that the crushed food materials of the food processor are uniform in thickness. And because when the first knife tackle spare moves to the nadir, the distance H between the nadir of first blade and the lower terminal surface of pivot is between 1 millimeter to 15 millimeters, so, first blade is in the reciprocal motion in-process about the first knife tackle spare, can whip the food material of food material container bottom to can guarantee that first blade stirs the food material of food material container bottom, crushing effect is better.

Further, a distance between a lowest point of the first blade and the rotating shaft lower end surface is between 1 mm and 5 mm. In this way, the first blade can fully stir the food material at the bottom of the food material container in the up-and-down reciprocating motion process of the first blade assembly, so that the first blade can be ensured to completely stir the food material at the bottom of the food material container.

Further, the annular guide groove extends in a sine curve or a cosine curve. Thus, the convex part moves in the annular guide groove more smoothly, and the noise is smaller.

Further, the first blade is disposed obliquely with respect to a horizontal plane; or the cutting edge of the first blade is arc-shaped or zigzag-shaped. Thus, the crushing efficiency of the food material is high, and the crushing effect is good.

Further, the first blade assembly comprises 2 to 7 first blades, the first blades are uniformly distributed along the circumferential direction and the axial direction of the first mounting sleeve, and the distance between the lowest point of the first blade positioned at the bottommost end of the first mounting sleeve and the lower end face of the rotating shaft is 1 to 15 millimeters. So, when first knife tackle spare was assembled in the pivot, a plurality of first blade cooperations can smash food material effectively, and first knife tackle spare can keep balance better at the rotation in-process.

Further, the pitch between adjacent 2 of the first blades in the up-down direction is between 5 mm and 20 mm. In this way, the first knife assembly is able to cut the food material in the container body finer.

Further, the annular guide groove is formed in the rotating shaft, the protruding portion is formed in the first mounting sleeve, the rotating shaft further comprises a sliding groove communicated with the annular guide groove, and the protruding portion enters the annular guide groove through the sliding groove. So, the convex part gets into the guide slot through the spout, can conveniently install first knife tackle spare in the pivot, and it is more convenient to use.

Further, the stirring cutter assembly further comprises a second cutter assembly, the second cutter assembly and the first cutter assembly are assembled on the rotating shaft in a replaceable manner, the second cutter assembly comprises a second mounting sleeve sleeved on the rotating shaft and a second blade arranged on the second mounting sleeve, and when the rotating shaft rotates, the position of the second cutter assembly relative to the rotating shaft is fixed; when the second blade assembly is assembled to the rotating shaft, a distance between a lowest point of the second blade and a lower end surface of the rotating shaft is between 1 mm and 15 mm. Because the stirring cutter assembly comprises the first cutter assembly and the second cutter assembly, the first cutter assembly and the second cutter assembly are suitable for stirring and crushing different food materials, so that a user can selectively assemble the first cutter assembly and the second cutter assembly on the rotating shaft according to different food materials, and the requirements of the user on processing different food materials can be met; because the second knife tackle spare is when the pivot is assembled, the distance between the minimum of second blade and the terminal surface is between 1 millimeter to 15 millimeters under the pivot, so, ensure that the second knife tackle spare can beat the food material of container body bottom to the beating to the food material is more abundant, even.

Further, the second blade assembly comprises 2 to 7 second blades, the second blades are uniformly distributed along the circumferential direction and the axial direction of the second mounting sleeve, and the distance between the lowest point of the second blade positioned at the bottommost end of the second mounting sleeve and the lower end face of the rotating shaft is 1 to 15 millimeters. So, when the second knife tackle spare was assembled in the pivot, a plurality of second knife tackle spare cooperation can smash food material effectively, and the second knife tackle spare can keep balanced better in the rotation in-process

Further, the annular guide groove is arranged on the rotating shaft, the convex part is arranged on the first mounting sleeve, the rotating shaft further comprises a sliding groove communicated with the annular guide groove, and the convex part enters the annular guide groove through the sliding groove; the second mounting sleeve comprises a first protruding portion located in the annular guide groove and a second protruding portion located in the sliding groove. Through setting up first convex part and being located annular guide slot and second convex part and being located the spout for second knife tackle spare can not take place to rotate for the pivot, also can not reciprocate from top to bottom, so the user can be according to the food material selection of difference with first knife tackle spare or second knife tackle spare equipment in the pivot.

Further, the rotating shaft comprises a first shaft and a second shaft assembled with the first shaft, the first shaft comprises a lower wall surface extending in a wavy manner, the second shaft comprises an upper wall surface extending in a wavy manner and opposite to the lower wall surface, the annular guide groove is formed between the lower wall surface and the upper wall surface, and the guide groove is arranged on the second shaft and penetrates through the upper wall surface. By arranging the rotary shaft as the first shaft and the second shaft and arranging the lower wall surface on the first shaft and arranging the upper wall surface on the second shaft, after the first shaft and the second shaft are assembled together, a guide groove is formed between the lower wall surface and the upper wall surface, so that the rotary shaft is easier to manufacture.

Further, the annular guide groove comprises an upward extending groove section and a downward extending groove section, and the sliding groove is communicated with the upward groove section. Therefore, when the rotating shaft rotates, the convex part abuts against the lower wall surface to slide in the annular guide groove, and the convex part is prevented from being blocked in the sliding groove.

Another aspect of the present application provides a food processor. This cooking machine includes: the food material container comprises a container body and a container cover covered on the container body; a main unit disposed on the container cover; and the stirring blade assembly is arranged in the container body.

Further, the first blade is radially spaced from the inner wall of the container body by a distance in the range of 2 mm to 8 mm; and/or the second blade is radially spaced from the inner wall of the container body by a distance in the range of 2 mm to 8 mm. Therefore, the situation that food materials at the side wall of the container body cannot be crushed can be avoided.

Further, the container body is provided with a turbulence bar, and the distance between the first blade and the turbulence bar in the radial direction ranges from 2 millimeters to 8 millimeters; and/or, the distance between the second blade and the spoiler rib in the radial direction ranges from 2 millimeters to 8 millimeters. Therefore, the situation that food materials at the side wall of the container body cannot be crushed can be avoided.

Drawings

FIG. 1 is an exploded perspective view of one embodiment of a food processor of the present application;

FIG. 2 is a cross-sectional view of the food processor shown in FIG. 1, with a first knife assembly assembled to a shaft;

FIG. 3 is a cross-sectional view of the blender blade assembly shown in FIG. 1;

FIG. 4 is a perspective view of the spindle shown in FIG. 1;

FIG. 5 is an exploded perspective view of the spindle of FIG. 4;

FIG. 6 is a cross-sectional view of the first knife assembly of FIG. 1;

FIG. 7 is a front view of the first knife assembly of FIG. 1;

FIG. 8 is a cross-sectional view of the second knife assembly of FIG. 1;

FIG. 9 is a front view of the second knife assembly of FIG. 1;

fig. 10 and 11 are exploded views of the guide slot shown in fig. 4.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "a" or "an" and the like as used in the description and the claims do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

Referring to fig. 1 to 11, a food processing machine 100 includes a food container 50, a main machine 40, and a stirring blade assembly 60, wherein the food container 50 includes a container body 51 and a container cover 52 covering the container body 51. The food material container 50 may be used to hold food material to be treated, for example: meat, vegetables. The food material is crushed in the food material container 50. A stirring blade assembly 60 is installed in the container body 51, and the stirring blade assembly 60 is used for stirring and crushing food materials.

Referring to fig. 1-2, the host 40 is disposed on the container cover 52. In the illustrated embodiment, the main machine 40 includes a housing 41, a motor 42, and a reduction gear box 43, the motor 42 is disposed within the housing 41, and the motor 42 includes a motor shaft 421. The reduction gear box 43 includes a driving gear 431, a driven gear 432, and an output terminal 433, the driving gear 431 is connected to the motor shaft 421, the driven gear 432 is engaged with the driving gear 431, and the output terminal 433 is connected to the stirring blade assembly 60. In another embodiment, the main machine 40 includes a housing 41 and a motor 42 disposed within the housing 41, excluding a reduction gearbox, with a motor shaft 421 of the motor 42 coupled to the blending blade assembly 60.

Referring to fig. 3 to 9, the agitating blade assembly 60 includes a rotary shaft 10, a first blade assembly 20, and a second blade assembly 30. The first knife assembly 20 comprises a first mounting sleeve 21 sleeved on the rotating shaft 10 and a first knife blade 22 arranged on the first mounting sleeve 21. The first knife assembly 20 is used for whipping and crushing food materials, for example: the vegetable is whipped into vegetable granules or vegetable purees, without being limited thereto. The first blades 22 may be disposed parallel to the horizontal plane or inclined to the horizontal plane, and the cutting edges of the first blades 22 may be arc-shaped or zigzag-shaped, so that the crushing efficiency is high.

One of the rotating shaft 10 and the first mounting sleeve 21 is provided with a wavy annular guide groove 111 along the circumferential direction, the other is provided with a convex part 211 matched with the annular guide groove 111, when the rotating shaft 10 rotates, the convex part 211 slides in the annular guide groove 111 to promote the first knife assembly 20 to rotate around the rotation center line of the rotating shaft 10, and meanwhile, the first knife assembly 20 reciprocates up and down along the rotating shaft 10.

When the first blade assembly 20 moves to the lowest point, the distance between the lowest point of the first blade 22 and the lower end surface of the rotating shaft 10 is between 1 mm and 15 mm.

In some embodiments, the distance between the lowest point of the first blade 22 and the lower end surface of the shaft 10 may be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, or some value between any of the above adjacent two when the first blade assembly 20 is moved to the lowest point. The specific value of H can be determined according to the actual situation, for example, according to the specific volume of the food material container or the different required mashing effects, so as to ensure the mashing effect.

In one embodiment, the annular guide groove 111 is disposed on the rotating shaft 10, and the protrusion 211 is disposed on the first mounting sleeve 21. In another embodiment, the annular guide groove 111 is disposed on the first mounting sleeve 21, and the protrusion 211 is disposed on the rotating shaft 10.

For convenience of illustration, fig. 10 and 11 show the annular guide groove 111 in a plan view. Referring to fig. 10, the channel formed by adjacent upstream and downstream channel segments 1119 and 1118 is arcuate in shape. Referring to fig. 11, the guide groove formed by the adjacent upstream groove section 1119 and downstream groove section 1118 is in the shape of a fold line. The shape and height of the upstream and downstream channel segments 1119, 1118 may be the same or different. The number of the upstream groove segments 1119 and the downstream groove segments 1118 is not limited, and in the case where there are a plurality of upstream groove segments 1119 and downstream groove segments 1118, the shape of the guide groove formed by each adjacent upstream groove segment 1119 and downstream groove segment 1118 may be the same or different. The above are just some examples and are not limited thereto.

In the stirring blade assembly 60, one of the rotating shaft 10 and the first mounting sleeve 21 is provided with the wavy annular guide groove 111 along the circumferential direction, the other is provided with the convex part 211 matched with the annular guide groove 111, when the rotating shaft 10 rotates, the groove wall of the annular guide groove 111 applies a component force along the rotating direction of the rotating shaft 10 to the convex part 211, and meanwhile, the acting force of food materials on the first blade assembly 20 and the gravity of the first blade assembly 20 (when the first blade assembly 20 moves downwards along the annular guide groove) enable the first blade assembly 20 to reciprocate up and down along the rotating shaft 10 while rotating around the rotating center line of the rotating shaft 10. As such, in the up-and-down reciprocation of the first knife assembly 20, the first knife blade 22 is capable of chopping food materials of different heights, so that the crushed food materials of the food processor 100 are more uniform in thickness. And, because the distance H between the lowest point of the first blade 22 and the lower end surface of the rotating shaft 10 is between 1 mm and 15 mm when the first blade assembly 20 moves to the lowest point, the first blade 22 can whip the food at the bottom of the food container 50 during the up-and-down reciprocating movement of the first blade assembly 20, thereby ensuring that the first blade 22 whips the food at the bottom of the food container 50, and the crushing effect is better.

Preferably, the distance between the lowest point of the first blade 22 and the lower end surface of the rotating shaft 10 is between 1 mm and 5 mm. In this way, in the process of the up-and-down reciprocating movement of the first blade assembly 20, the distance between the first blade 22 and the bottom of the food material container is small, so that the food material at the bottom of the food material container can be fully stirred, the food material at the bottom of the food material container can be completely stirred by the first blade 22, and the food material can be cut more finely and uniformly.

As shown in fig. 9, when the first blade assembly 20 moves to the lowest point, the distance H between the lowest point of the first blade 22 and the lower end surface of the rotating shaft 10 refers to the vertical distance from the lowest point of the first blade 22 to the lower end surface of the rotating shaft 10.

The second blade assembly 30 and the first blade assembly 20 are interchangeably assembled to the rotary shaft 10. The second blade assembly 30 includes a second mounting sleeve 31 sleeved on the rotating shaft 10 and a second blade 32 disposed on the second mounting sleeve 31, and when the rotating shaft 10 rotates, the position of the second blade assembly 30 relative to the rotating shaft 10 is fixed, that is, the second blade assembly 30 does not rotate relative to the rotating shaft 10 and does not reciprocate up and down. The cutting edge of the second blade 32 may be inclined, curved or zigzag, so that the crushing efficiency is high. The second knife assembly 30 and the first knife assembly 20 are adapted to whip and crush different food materials. For example: when the food material is vegetables or fruits, the first knife assembly 20 is assembled on the rotating shaft 10; when the food material is meat, the second knife assembly 30 is assembled on the rotating shaft 10, so that the food material can be crushed uniformly. The above are just some examples and are not limited to the above examples. When the second blade assembly 30 is assembled to the rotary shaft 10, a distance between the lowest point of the second blade 32 and the lower end surface of the rotary shaft 10 is between 1 mm and 15 mm.

Because the stirring cutter assembly 60 comprises the first cutter assembly 20 and the second cutter assembly 30, the first cutter assembly 20 and the second cutter assembly 30 are suitable for stirring and crushing different food materials, so that a user can selectively assemble the first cutter assembly 20 and the second cutter assembly 30 on the rotating shaft 10 according to different food materials, and the requirement of the user on processing different food materials can be met; since the distance between the lowest point of the second blade 32 and the lower end surface of the rotating shaft 10 is between 1 mm and 15 mm when the second blade assembly 30 is assembled on the rotating shaft 10, it is ensured that the second blade assembly 30 can whip the food material at the bottom of the container body 51, so that whipping of the food material is more sufficient and uniform.

In one embodiment, no turbulence ribs are provided on the inner wall of the container body 51, and the distance between the first blade 22 and the inner wall of the container body 51 in the radial direction ranges from 2 mm to 8 mm; and/or the second blade 32 is radially spaced from the inner wall of the container body 51 by a distance ranging from 2 mm to 8 mm. In this way, the food material at the side wall of the container body 51 can be prevented from being mashed.

In another embodiment, the container body 51 is provided with a spoiler 511, and the distance between the first blade 22 and the spoiler 511 in the radial direction ranges from 2 mm to 8 mm. In this way, the food material at the side wall of the container body 51 can be prevented from being mashed. In some embodiments, the first blade 22 may be spaced from the spoiler 511 by a distance of 2 mm, 4 mm, 6 mm, 8 mm, or some value between any two adjacent thereto.

The distance between the second blade 32 and the spoiler 511 in the radial direction ranges from 2 mm to 8 mm. In this way, the food material at the side wall of the container body 51 can be prevented from being mashed. In some embodiments, the distance between the second blade 32 and the spoiler 511 in the radial direction may be 2 mm, 4 mm, 6 mm, 8 mm, or some value between any two adjacent thereto.

Preferably, the first blade assembly 20 includes 2 to 7 first blades 22, and the first blades 22 are uniformly arranged along the circumferential direction and the axial direction of the first mounting sleeve 21, and a distance between the first blade 22 positioned at the bottommost end of the first mounting sleeve 21 and the lower end surface of the rotating shaft 10 is between 1 mm and 15 mm. Thus, when the first cutter assembly 20 is assembled to the rotary shaft 10, the food can be efficiently crushed, and the first cutter assembly 20 can be better balanced in the rotation process. In the illustrated embodiment of the present application, the first blade assembly 20 includes four first blades 22 uniformly distributed along the circumferential direction and the axial direction, that is, the first blade assembly 20 forms a four-blade, in other embodiments, the first blade assembly 20 may also include two or three first blades 22 uniformly distributed along the circumferential direction and the axial direction, so that the first blade assembly 20 forms a two-blade or a three-blade, and of course, the number of the first blades 22 is selected, so that the cutting uniformity effect caused by the up-and-down reciprocating motion while the rotation of the first blade assembly 2 is not affected, and specifically, different numbers of blades may be set according to practical situations, which is not limited herein.

Preferably, the second blade assembly 30 includes 2 to 7 second blades 32, and the second blades 32 are uniformly arranged along the circumferential direction and the axial direction of the second mounting sleeve 31, and the distance between the second blade 32 positioned at the bottommost end of the second mounting sleeve 31 and the lower end surface of the rotating shaft 10 is between 1 mm and 15 mm. In this way, when the second cutter assembly 30 is assembled to the rotary shaft 10, the food can be efficiently crushed, and the second cutter assembly 30 can be kept balanced better in the rotation process.

Preferably, a pitch H1 of 2 adjacent first blades 22 in the up-down direction is between 5 mm and 20 mm. In this way, the first knife assembly 20 can cut the food material in the container body 51 finer. In some embodiments, the pitch H1 between adjacent 2 of the first blades 22 in the up-down direction may be 5 mm, 10 mm, 15 mm, 20 mm, or some value between any two of the above.

Preferably, the pitch H2 of the adjacent 2 second blades 32 in the up-down direction is between 5 mm and 20 mm. In this way, the second knife assembly 30 can cut the food material in the container body 51 finer. In some embodiments, the pitch H2 of adjacent 2 of the second blades 32 in the up-down direction may be 5 mm, 10 mm, 15 mm, 20 mm, or some value between any two of the above.

In some preferred embodiments, the annular channel 111 extends in a sine curve or a cosine curve. In this way, the movement of the protrusion 211 in the annular guide groove 111 is smoother and less noisy.

In the illustrated embodiment, the annular guide groove 111 is disposed on the rotating shaft 10, the protrusion 211 is disposed on the first mounting sleeve 21, the rotating shaft 10 further includes a chute 112 communicating with the annular guide groove 111, and the protrusion 211 enters the annular guide groove 111 through the chute 112. In this way, the protrusion 211 enters the guide groove 111 through the chute 112, so that the first cutter assembly 20 can be conveniently mounted on the rotating shaft 10, and the use is more convenient.

The second mounting sleeve 31 includes a first protrusion 311 located in the annular guide groove 111 and a second protrusion 312 located in the chute 112. By providing the first protrusion 311 in the annular guide groove 111 and the second protrusion 312 in the slide groove 112, the second blade assembly 30 does not rotate relative to the rotary shaft 10 nor reciprocate up and down.

In some embodiments, the rotating shaft 10 includes a first shaft 113 and a second shaft 114 assembled with the first shaft 113, the first shaft 113 includes a lower wall surface 1131 extending in a wavy shape, the second shaft 114 includes an upper wall surface 1141 extending in a wavy shape and disposed opposite to the lower wall surface 1131, the annular guide groove 111 is formed between the lower wall surface 1131 and the upper wall surface 1141, and the chute 112 is disposed on the second shaft 114 and penetrates the upper wall surface 1141. By providing the rotary shaft 10 as the first shaft 113 and the second shaft 114 and providing the lower wall surface 1131 to the first shaft 113 and providing the upper wall surface 1141 to the second shaft 114, after the first shaft 113 and the second shaft 114 are assembled together, the guide groove 111 is formed between the lower wall surface 1131 and the upper wall surface 1141, so that the rotary shaft 10 is easier to manufacture. In the illustrated embodiment, the second shaft 114 is sleeved on the outer side of the first shaft 113, the first shaft 113 is provided with a boss 1139, the second shaft 114 is provided with a slot 1149 matched with the boss 1139, and the second shaft 114 can be prevented from rotating relative to the first shaft 113 by matching the slot 1149 with the boss 1139.

The annular channel 111 includes an upwardly extending upstream channel segment 1119 and a downwardly extending downstream channel segment 1118, and the chute 112 communicates with the upstream channel segment 1119. Thus, when the rotating shaft 10 rotates, the protruding portion 211 slides in the annular guiding groove 111 against the lower wall surface 1131, so as to avoid the protruding portion 211 from being blocked in the sliding groove 112.

The number of protrusions 211 is the same as the number of the upstream groove segments 1119. In this way, the first cutter assembly 20 can be rotated more smoothly. In the illustrated embodiment, the annular guiding groove 111 includes 2 upstream groove segments 1119 and 2 downstream groove segments 1118,2, and the sliding grooves 112 are respectively communicated with the 2 upstream groove segments 1119, and 2 protrusions 211 are correspondingly disposed on the inner side of the first mounting sleeve 21.

In one embodiment, the first shaft 113 and the second shaft 114 are secured together by fasteners 116. Thus, the assembly is convenient and reliable. Specifically, the first shaft 113 is provided with a screw hole 1136, the second shaft 114 is provided with a stud 1147, and the fastener 116 is a screw, and the screw passes through the screw hole 1136 to be locked with the stud 1147, thereby fixing the first shaft 113 and the second shaft 114 together. The bottom of the first shaft 113 is provided with a shaft cover 117. The shaft cover 117 is provided with a bowl shaft hole 115, and is engaged with a limiting shaft 511 provided at the bottom of the container body 51 through the bowl shaft hole 115. The top end of the second shaft 114 is provided with a connector 118, the connector 118 is used for being connected with the output end 433, and the material of the connector 118 is preferably metal. In other embodiments, the first shaft 113 and the second shaft 114 may be secured by snap-fit structures, ultrasonic welding, or the like.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model to the precise form disclosed, and any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.

Claims (15)

1. A stirring blade assembly, characterized in that: it comprises the following steps:

a rotating shaft (10); and

The first knife assembly (20) comprises a first mounting sleeve (21) sleeved on the rotating shaft (10) and a first knife blade (22) arranged on the first mounting sleeve (21), one of the rotating shaft (10) and the first mounting sleeve (21) is provided with a wavy annular guide groove (111) along the circumferential direction, the other one is provided with a convex part (211) matched with the annular guide groove (111), when the rotating shaft (10) rotates, the convex part (211) slides in the annular guide groove (111), so that the first knife assembly (20) is driven to rotate around the rotation center line of the rotating shaft (10), and meanwhile, the first knife assembly (20) reciprocates up and down along the rotating shaft (10);

when the first blade assembly (20) moves to the lowest point, the distance between the lowest point of the first blade (22) and the lower end surface of the rotating shaft (10) is between 1 mm and 15 mm.

2. The blender blade assembly of claim 1, wherein: the distance between the lowest point of the first blade (22) and the lower end surface of the rotating shaft (10) is between 1 mm and 5 mm.

3. The blender blade assembly of claim 1, wherein: the annular guide groove (111) extends in a sine curve or a cosine curve.

4. The blender blade assembly of claim 1, wherein: the first blade (22) is arranged obliquely relative to the horizontal plane; or the edge of the first blade (22) is arc-shaped or zigzag-shaped.

5. The blender blade assembly of claim 1, wherein: the first cutter assembly (20) comprises 2 to 7 first blades (22), the first blades (22) are uniformly distributed along the circumferential direction and the axial direction of the first mounting sleeve (21), and the distance between the lowest point of the first blade (22) positioned at the bottommost end of the first mounting sleeve (21) and the lower end surface of the rotating shaft (10) is 1 to 15 millimeters.

6. The blender blade assembly of claim 5, wherein: the pitch between adjacent 2 first blades (22) in the up-down direction is between 5 mm and 20 mm.

7. The blender blade assembly of claim 1, wherein: the annular guide groove (111) set up in pivot (10), protruding portion (211) set up in first installation cover (21), pivot (10) still include with spout (112) of annular guide groove (111) intercommunication, protruding portion (211) pass through spout (112) get into annular guide groove (111).

8. The blender blade assembly of claim 1, wherein: the stirring cutter assembly further comprises a second cutter assembly (30), the second cutter assembly (30) and the first cutter assembly (20) are assembled on the rotating shaft (10) in a replaceable mode, the second cutter assembly (30) comprises a second mounting sleeve (31) sleeved on the rotating shaft (10) and a second blade (32) arranged on the second mounting sleeve (31), and when the rotating shaft (10) rotates, the position of the second cutter assembly (30) relative to the rotating shaft (10) is fixed;

when the second blade assembly (30) is assembled to the rotating shaft (10), the distance between the lowest point of the second blade (32) and the lower end surface of the rotating shaft (10) is between 1 mm and 15 mm.

9. The blender blade assembly of claim 8, wherein: the second blade assembly (30) comprises 2 to 7 second blades (32), the second blades (32) are uniformly distributed along the circumferential direction and the axial direction of the second mounting sleeve (31), and the distance between the lowest point of the second blade (32) positioned at the bottommost end of the second mounting sleeve (31) and the lower end surface of the rotating shaft (10) is 1 to 15 millimeters.

10. The blender blade assembly of claim 8, wherein: the annular guide groove (111) is arranged on the rotating shaft (10), the protruding part (211) is arranged on the first mounting sleeve (21), the rotating shaft (10) further comprises a sliding groove (112) communicated with the annular guide groove (111), and the protruding part (211) enters the annular guide groove (111) through the sliding groove (112); the second mounting sleeve (31) comprises a first protruding part (311) positioned in the annular guide groove (111) and a second protruding part (312) positioned in the sliding groove (112).

11. The blender blade assembly of claim 7 or 10, wherein: the rotating shaft (10) comprises a first shaft (113) and a second shaft (114) assembled with the first shaft (113), the first shaft (113) comprises a lower wall surface (1131) extending in a wavy manner, the second shaft (114) comprises an upper wall surface (1141) extending in a wavy manner and oppositely arranged with the lower wall surface (1131), the annular guide groove (111) is formed between the lower wall surface (1131) and the upper wall surface (1141), and the sliding groove (112) is arranged on the second shaft (114) and penetrates through the upper wall surface (1141).

12. The blender blade assembly of claim 10, wherein: the annular guide groove (111) comprises an upward extending groove section (1119) and a downward extending groove section (1118), and the sliding groove (112) is communicated with the upward groove section (1119).

13. A cooking machine, its characterized in that: it comprises the following steps:

a food container (50) comprising a container body (51) and a container cover (52) covering the container body (51);

a main body (40) provided on the container cover (52); and

The blender blade assembly (60) of any of claims 1 to 12, mounted within the container body (51).

14. The food processor of claim 13, wherein: -the first blade (22) is radially spaced from the inner wall of the container body (51) by a distance ranging between 2 mm and 8 mm; and/or the second blade (32) is radially spaced from the inner wall of the container body (51) by a distance in the range of 2 mm to 8 mm.

15. The food processor of claim 13, wherein: the container body (51) is provided with a turbulence rib (511), and the distance between the first blade (22) and the turbulence rib (511) in the radial direction ranges from 2 millimeters to 8 millimeters; and/or the distance between the second blade (32) and the turbulence rib (511) in the radial direction ranges from 2 mm to 8 mm.