Stirring knife assembly and food processor

Abstract

The utility model discloses a stirring knife assembly and a food processor. The stirring cutter assembly comprises a cutter shaft and a cutter assembly detachably installed on the cutter shaft. The cutter assembly comprises a cutter shaft sleeve. The cutter shaft sleeve comprises a shaft sleeve cavity. Symmetrical mounting grooves are formed in one of the side face of the cutter shaft and the cavity wall of the cavity of the shaft sleeve, and a protruding part is arranged on the other one of the side face of the cutter shaft and the cavity wall of the cavity. The mounting groove comprises a first guide groove and a second guide groove which are staggered in the circumferential direction of the cutter shaft and are different in height in the axial direction of the cutter shaft, and a blocking part is formed at the staggered position. The protruding part enters the second guide groove along the first guide groove and is located in the second guide groove. Therefore, after the stirring cutter assembly is assembled on the stirring cup, when liquid is poured, the blocking part can block the cutter assembly from entering the first guide groove from the second guide groove, and then the cutter assembly is prevented from being separated from the cutter shaft and is prevented from falling out of the stirring cup. In addition, the protruding portion of the cutter assembly moves into the second guide groove from the first guide groove, the cutter assembly and the cutter shaft are assembled, the cutter assembly and the cutter shaft are disassembled in the reverse process, and therefore the cutter assembly is convenient to disassemble and assemble.

Description

Technical Field

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

[0002] The food processor comprises a main machine and a mixing cup assembly. The mixing cup assembly comprises a mixing cup and a mixing blade assembly. The main machine comprises a driving device. The driving device drives the blade assembly of the mixing blade assembly to rotate in the mixing cup to process food.

[0003] After the food is processed, it is necessary to pour the food out of the blender cup. However, in some food processors, when pouring out food such as soy milk or juice, the knife assembly will separate from the knife shaft and fall out of the blender cup. Utility Model Content

[0004] The purpose of the present application is to disclose a mixing knife assembly and a food processor. The mixing knife assembly can prevent the knife assembly from being separated from the knife shaft, and further prevent the knife assembly from falling out of the mixing cup.

[0005] The present application discloses a stirring knife assembly. The stirring knife assembly includes a knife shaft and a knife assembly detachably mounted on the knife shaft, wherein the knife assembly includes a knife shaft sleeve, and the knife shaft sleeve includes a sleeve cavity. One of the side surface of the knife shaft and the cavity wall of the sleeve cavity is provided with a symmetrical mounting groove, and the other is provided with a protrusion. The mounting groove includes a first guide groove and a second guide groove staggered in the circumferential direction of the knife shaft, and the staggered portion constitutes a blocking portion. The second guide groove is different from the first guide groove in the axial direction of the knife shaft. The protrusion enters the second guide groove along the first guide groove and is located in the second guide groove.

[0006] As described above, since the first guide groove and the second guide groove of the blade shaft are staggered, and the staggered portion forms a blocking portion, and the second guide groove and the first guide groove have different heights in the axial direction of the blade shaft. After the stirring blade assembly is assembled in the stirring cup, when pouring liquid (such as soy milk), the blocking portion will block the blade assembly from entering the first guide groove from the second guide groove, and then block the blade assembly from separating from the blade shaft, preventing the blade assembly from falling out of the stirring cup. In addition, the raised portion of the blade assembly moves from the first guide groove to the second guide groove to realize the assembly of the blade assembly and the blade shaft, and the reverse process realizes the disassembly of the blade assembly and the blade shaft. Therefore, the blade assembly is easy to disassemble and assemble.

[0007] In some embodiments, the second guide groove includes opposite groove walls, and at least one side of the groove wall is provided with a blocking step.

[0008] As configured above, during the synchronous rotation of the knife assembly with the knife shaft, the blocking step can block the protrusion to prevent the protrusion from moving axially in the knife shaft, thereby preventing the knife assembly from moving axially in the knife shaft.

[0009] In some embodiments, the blocking portion includes a blocking wall; along the axial direction of the knife shaft, the blocking wall is located between the first guide groove and the second guide groove.

[0010] As configured above, since the blocking wall is located between the first guide groove and the second guide groove, the blocking portion is more capable of blocking the knife assembly from moving from the second guide groove to the first guide groove, thereby preventing the knife assembly from separating from the knife shaft.

[0011] In some embodiments, the blocking wall is parallel to a radial plane of the knife shaft, or the blocking wall is inclined downwardly toward the first guide groove and forms an acute angle with the radial plane of the knife shaft.

[0012] As configured above, because the blocking wall is parallel to the radial plane of the blade shaft or is arranged at an acute angle to the radial plane, the blade assembly is less likely to pass over the blocking portion and enter the first guide groove, thereby detaching from the blade shaft, thereby preventing the blade assembly from falling out of the blender cup.

[0013] In some embodiments, the stirring blade assembly includes a blade disc, and the blade shaft is disposed on the blade disc; the top of the first guide groove and the top of the second guide groove are respectively provided with guide openings, and the width of the guide openings decreases along the axial direction of the blade shaft toward the blade disc.

[0014] As set up as above, by setting the guide opening, and the width of the guide opening decreases along the axial direction of the blade shaft toward the blade disc, so that the blade assembly will not separate from the blade shaft and fall out of the blender cup. During the process of assembling the blade assembly, the width of the guide opening gradually decreases downward along the axial direction of the blade shaft, so that the raised portion of the blade assembly can be guided to facilitate the assembly of the blade assembly. During the process of disassembling the blade assembly, the raised portion moves from the smaller width to the larger width to facilitate disassembly.

[0015] In some embodiments, a groove depth of the first guide groove is greater than a groove depth of the second guide groove.

[0016] As described above, since the groove depth of the first guide groove is greater than that of the second guide groove, when assembling the knife assembly, the knife assembly first contacts the first guide groove with a greater depth, and then contacts the second guide groove, which facilitates the assembly of the knife assembly. In addition, since the groove depth of the first guide groove is greater than that of the second guide groove, when the protrusion is located in the second guide groove, the gap between the protrusion and the second guide groove is also smaller, and food residues are not easily left between the protrusion and the second guide groove.

[0017] In some embodiments, the knife shaft is provided with a groove around the circumference of the knife shaft, and the first guide groove and the second guide groove are connected through the groove.

[0018] As described above, since the first guide groove and the second guide groove are connected through the groove, the groove surrounds the circumference of the knife shaft, so that the consumer can load the knife assembly from the positive direction or the reverse direction, and the knife assembly is convenient to assemble. In addition, the groove surrounds the knife shaft for one week, which is also convenient for processing the knife shaft.

[0019] In some embodiments, at least one of the first guide groove and the second guide groove extends in the axial direction of the knife shaft; or, at least one of the first guide groove and the second guide groove extends upward in the circumferential spiral direction of the knife shaft.

[0020] As configured above, no matter at least one of the first guide groove and the second guide groove extends along the axial direction of the knife shaft, or at least one of the first guide groove and the second guide groove extends in a spiral shape around the circumferential direction of the knife shaft, the knife assembly can be easily disassembled.

[0021] In some embodiments, the knife assembly includes a knife shaft sleeve, and the knife shaft sleeve includes the sleeve cavity; the protrusion is arranged on the knife shaft sleeve, and the shape of the protrusion along the radial cross-section of the knife shaft, the shape of the first guide groove along the radial cross-section of the knife shaft, and the shape of the second guide groove along the radial cross-section of the knife shaft are the same.

[0022] As set up as above, since the aforementioned cross-sectional shapes are the same, it is convenient to assemble the protrusion with the first guide groove and the second guide groove. Moreover, after assembly, the gap between the protrusion and the second guide groove is small, and it is not easy for food residues to remain.

[0023] In some embodiments, when both the first guide groove and the second guide groove extend along the axial direction of the knife shaft, the shapes are both fan rings or squares.

[0024] As described above, since the first guide groove and the second guide groove are in a sector ring or square shape along the radial cross section of the knife shaft, the knife shaft can be easily processed. The protrusion is arranged on the knife shaft sleeve, which also simplifies the processing of the knife shaft sleeve. In particular, in the embodiment in which the knife assembly includes the knife shaft sleeve, the fixing nut and the blade as described later, it is easier to process the knife shaft sleeve.

[0025] In some embodiments, the knife assembly includes a knife shaft sleeve, a fixing nut and a blade, and the knife shaft sleeve includes the sleeve cavity; the fixing nut and the knife shaft sleeve are threadedly connected to clamp the blade.

[0026] As described above, the blade is clamped by threading the fixing nut with the blade shaft sleeve, and the assembly of the various parts of the blade assembly is simple. Accordingly, the blade shaft sleeve is threadedly connected to the fixing nut, and the overall height of the blade shaft sleeve is relatively low. The blade shaft sleeve may include a first portion forming the protrusion and a second portion threadedly connected to the fixing nut, which is also convenient for processing parts to form the protrusion.

[0027] In a second aspect, the present application discloses a food processor, which comprises any one of the aforementioned stirring blade assemblies, a stirring cup, and a driving device, wherein the driving device drives the blade assembly to rotate in the stirring cup.

[0028] As configured above, the food processor at least has the beneficial effects brought by the stirring blade assembly, which will not be described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a cross-sectional view of a blending cup assembly shown in an embodiment of the present application;

[0030] Figure 2 is a stereoscopic diagram of a stirring blade assembly shown in an embodiment of the present application;

[0031] Figure 3 yes Figure 2 A top view of the mixing blade assembly is shown;

[0032] Figure 4 is along Figure 3 Sectional view along line AA;

[0033] Figure 5 yes Figure 2 An exploded view of the mixing blade assembly is shown;

[0034] Figure 6 is a three-dimensional view of a knife shaft shown in an embodiment of the present application;

[0035] Figure 7 yes Figure 6 A schematic diagram of the knife axis at an angle is shown;

[0036] Figure 8 yes Figure 6 A schematic diagram of the knife axis at another angle is shown;

[0037] Fig. 9 is along Figure 8 Sectional view of the mid-CC line;

[0038] Fig.10 is along Figure 8 Sectional view along the mid-DD line;

[0039] Fig.11 is along Fig. 9 Sectional view along line EE;

[0040] Fig.12 is an exploded view of a knife assembly shown in an embodiment of the present application;

[0041] Fig.13 is a top view of a knife assembly shown in an embodiment of the present application;

[0042] Fig.14 is along Fig.13 Sectional view along the midline BB;

[0043] Fig.15 is a three-dimensional view of a knife shaft sleeve shown in an embodiment of the present application;

[0044] Fig.16 yes Fig.15 A bottom view of the knife shaft sleeve is shown;

[0045] Fig.17 yes Fig.15 A top view of the knife shaft sleeve is shown;

[0046] Fig.18 is along Fig.17 Sectional view along line FF;

[0047] Fig.19 It is a schematic diagram of a food processor shown in an embodiment of the present application. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0049] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0050] See also Figure 5 and Figure 4 Combined with Figure 1 , Figure 2 and Figure 3 The present application discloses a stirring blade assembly 10. The stirring blade assembly 10 includes a blade shaft 1 and a blade assembly 2 detachably mounted on the blade shaft 1. The stirring blade assembly 10 also includes a blade disc 3. The blade shaft 1 and the blade disc 3 are rotationally assembled, for example, the rotational assembly can be achieved through bearings, etc. The blade assembly 2 includes a blade shaft sleeve 21, and the blade shaft sleeve 21 includes a sleeve cavity 210. See Figure 5 , Figure 6 and Figure 7 Combined with Fig. 9 , Fig.10 and Fig.11 The side of the knife shaft 1 is provided with a symmetrical installation groove 11. The installation groove 11 includes a first guide groove 111 and a second guide groove 112 staggered in the circumferential direction of the knife shaft 1, and the staggered portion forms a blocking portion 113. The second guide groove 112 and the first guide groove 111 have different heights in the axial direction of the knife shaft 1. Fig.15 and Fig.16 Combined with Fig.17 and Fig.18The cavity wall of the sleeve cavity 210 is provided with a protrusion 211. Of course, in other embodiments, the cavity wall of the sleeve cavity 210 may be provided with the mounting groove 11, and the side surface of the knife shaft 1 may be provided with the protrusion 211.

[0051] See also Figure 4 and Figure 5 Combined with Figure 2 , the stirring blade assembly 10 is assembled as follows:

[0052] The knife assembly 2 is inserted into the knife shaft 1 through the sleeve cavity 210 of the knife shaft sleeve 21, and the protrusion 211 is aligned with the first guide groove 111, so that the protrusion 211 slides into the first guide groove 111 of the installation groove 11. Because the first guide groove 111 and the second guide groove 112 are staggered, the knife assembly 2 needs to be rotated by a certain angle until the protrusion 211 is aligned with the second guide groove 112, and then the protrusion 211 enters the second guide groove 112 along the first guide groove 111 and is located in the second guide groove 112. The process of disassembling the knife assembly 2 is opposite to the above process.

[0053] See also Figure 1 The stirring blade assembly 10 is assembled at the bottom of the stirring cup 20, and there is no limit to the assembly method.

[0054] As described above, since the first guide groove 111 and the second guide groove 112 of the blade shaft 1 are staggered, and the staggered portion forms a blocking portion 113, and the second guide groove 112 and the first guide groove 111 are at different heights in the axial direction of the blade shaft 1. After the stirring blade assembly 10 is assembled in the stirring cup 20, when pouring liquid (such as soy milk), the blocking portion 113 will block the blade assembly 2 from entering the first guide groove 111 from the second guide groove 112, and then block the blade assembly 2 from separating from the blade shaft 1, preventing the blade assembly 2 from falling out of the stirring cup 20. In addition, the protrusion 211 of the blade assembly 2 moves from the first guide groove 111 to the second guide groove 112 to realize the assembly of the blade assembly 2 and the blade shaft 1, and the reverse process realizes the disassembly of the blade assembly 2 and the blade shaft 1, so that the disassembly of the blade assembly 2 is convenient.

[0055] See also Figure 6 and Figure 8 Combined with Figure 5 and Figure 7, the second guide groove 112 includes opposite groove walls, and the groove walls on each side are provided with a blocking step 1123 (there are two blocking steps 1123 in total). More specifically, the second guide groove 112 includes a second upper guide groove 1121 and a second lower guide groove 1122. Along the circumference of the knife shaft 1, the second lower guide groove 1122 is wider than the first upper guide groove 1121, thereby constituting the blocking step 1123. However, based on the role of the subsequent blocking step 1123, the blocking step 1123 may also be provided on only one side. The groove wall on at least one side is provided with a blocking step 1123. In the embodiments of the present application, continue to refer to Fig. 9 , Fig.10 and Fig.11 Combined with Figure 5 , Figure 6 , Figure 7 and Figure 8 , Fig.16 In the embodiment, the central angle of the protrusion 211 is δ (corresponding to the cross-sectional area a), the diameter between the protrusions 211 is D3, and the diameter of the sleeve cavity 210 is D4. D4>d4, D3>d3. Fig. 9 and Figure 8 , the central angle of the sector ring of the first guide groove 111 is α. Fig.10 Combined with Figure 8 , the central angle of the fan ring of the second upper guide groove 1121 of the second guide groove 112 is β. Fig.11 Combined with Figure 8 , the central angle of the fan ring of the second lower guide groove 1122 of the second guide groove 112 is γ. Because the cross-sectional shape is a fan ring, the cross-sectional area corresponds to the angle relationship, and there is the following relationship: δ﹤α﹤90°, δ﹤β﹤90°, β﹤γ﹤90°, so that the knife shaft 1 can form the blocking step 1123.

[0056] As described above, when the knife assembly 2 rotates synchronously with the knife shaft 1, the blocking step 1123 can block the protrusion 211 to prevent the protrusion 211 from axially moving in the knife shaft 1, thereby preventing the knife assembly 2 from axially moving in the knife shaft 1. Of course, if the knife assembly 2 only needs to rotate in one direction (for example, it can only rotate forward or reverse), there can be only one blocking step 1123. If the knife assembly 2 needs to rotate forward and reverse, there are two blocking steps 1123.

[0057] See also Fig.18 and Figure 8, the height of the protrusion 211 is h, the distance between the blocking step 1123 and the bottom of the second guide groove 112 along the axial direction of the knife shaft 1 is h2, and h<h2. In this way, it is more convenient to assemble the knife assembly 2 and the knife shaft 1. As described later, in the case where the groove 115 is provided, the height of the groove 115 along the axial direction of the knife shaft 1 is h1, and the relationship exists: h

[0058] See also Figure 5 , Figure 6 , Figure 7 and Figure 8 In some embodiments, the blocking portion 113 includes a blocking wall 1131. Along the axial direction of the knife shaft 1, the blocking wall 1131 is located between the first guide groove 111 and the second guide groove 112.

[0059] As configured above, since the blocking wall 1131 is located between the first guide groove 111 and the second guide groove 112, the blocking portion can better block the knife assembly 2 from moving from the second guide groove 112 to the first guide groove 111, thereby preventing the knife assembly 2 from detaching from the knife shaft.

[0060] Figure 5 and Figure 7 It is illustrated that the blocking wall is parallel to the radial plane of the knife shaft, that is, the blocking wall 1131 is at a right angle to the axial direction of the knife shaft 1. Technicians can understand that in some embodiments, the blocking wall 1131 is inclined downward toward the first guide groove 111 and is at an acute angle to the radial plane of the knife shaft 1, that is, the blocking wall 1131 is at an acute angle to the axial direction of the knife shaft 1.

[0061] As configured above, because the blocking wall 1131 is parallel to the radial plane of the blade shaft, or forms an acute angle with the radial plane, the blade assembly is less likely to pass over the blocking portion and enter the first guide groove, thereby detaching from the blade shaft, thereby preventing the blade assembly from falling out of the blender cup.

[0062] See 7 and Figure 8 Combined with Figure 6 and Figure 5 The stirring blade assembly 10 includes a blade disc 3, and the blade shaft 1 is disposed on the blade disc 3, including: 1) when the blade shaft 1 is connected to the driving device via a clutch, the blade shaft 1 is rotationally connected to the blade disc 3; 2) when the blade assembly 2 is driven by the driving device via magnetic force, the blade shaft 1 is placed on the blade disc 3 via a seat, etc., such as being placed on the blade disc 3 by magnetic attraction, or being placed on the blade disc 3 via some limiting structures. The top of the first guide groove 111 and the top of the second guide groove 112 are respectively provided with guide openings 114, and the width of the guide openings 114 gradually decreases along the axial direction of the blade shaft 1 toward the blade disc 3. Figure 7 and Figure 8 ​As shown, the blade disc 3 is located at the lower end, that is, it gradually decreases in the vertical downward direction. The gradual decrease is not limited to being realized by symmetrical inclined surfaces, and it can also be realized by only one inclined surface.

[0063] As described above, by setting the guide opening 114, and the width of the guide opening 114 decreases along the axial direction of the blade shaft toward the blade disc, so that the blade assembly 2 will not separate from the blade shaft 1 and fall out of the mixing cup 20. During the process of assembling the blade assembly 2, the width of the guide opening 114 gradually decreases downward along the axial direction of the blade shaft 1, so that the raised portion 211 of the blade assembly 2 can be guided to facilitate the assembly of the blade assembly 2. During the process of disassembling the blade assembly 2, the raised portion 211 moves from the smaller width to the larger width to facilitate disassembly.

[0064] In some embodiments, see Figure 6 , Figure 7 and Figure 8 Combined with Fig. 9 , Fig.10 and Fig.11 , the groove depth of the first guide groove 111 is greater than the groove depth of the second guide groove 112. The diameter of the circle corresponding to the inner arc of the fan ring of the first guide groove 111 is d1, and the diameter of the section of the knife shaft 1 forming the first guide groove 111 is d2. The diameter of the circle corresponding to the inner arc of the fan ring of the second upper guide groove 1121 of the second guide groove 112 is d3, and the diameter of the section of the knife shaft 1 forming the second upper guide groove 1121 is d4. The diameter of the circle corresponding to the inner arc of the fan ring of the second lower guide groove 1122 of the second guide groove 112 is d3, and the diameter of the section of the knife shaft 1 forming the second lower guide groove 1122 is d4. d1≤d3, d2≤d4, d3<d2. Because d1≤d3, d1<d3, the groove depth of the first guide groove 111 is greater than the groove depth of the second guide groove 112. When d1=d3, the groove depth of the first guide groove 111 is equal to the groove depth of the second guide groove 112.

[0065] As described above, since the groove depth of the first guide groove 111 is greater than the groove depth of the second guide groove 112, when assembling the knife assembly 2, the knife assembly 2 first contacts the first guide groove 111 with a larger depth, and then contacts the second guide groove 112, which facilitates the assembly of the knife assembly 2. In addition, since the groove depth of the first guide groove 111 is greater than the groove depth of the second guide groove 112, when the protrusion 211 is located in the second guide groove 112, the gap between the protrusion 211 and the second guide groove 112 is also smaller, and food residues are not easily left between the protrusion 211 and the second guide groove 112.

[0066] See also Figure 5 , Figure 6 , Figure 7 and Figure 8The knife shaft 1 is provided with a groove 115 circumferentially around the knife shaft 1 , and the first guide groove 111 and the second guide groove 112 are connected through the groove 115 .

[0067] As described above, since the first guide groove 111 and the second guide groove 112 are connected through the groove 115, and the groove surrounds the circumference of the knife shaft, the consumer can install the knife assembly from the positive direction or the reverse direction, and the knife assembly is easy to assemble. For example, consumers who are used to using their right hand can assemble the knife assembly 2 from the positive direction, and consumers who are used to using their left hand can assemble the knife assembly 2 from the reverse direction. In addition, the groove surrounds the knife shaft, which is also convenient for processing the knife shaft.

[0068] See also Figure 5 , Figure 6 , Figure 7 and Figure 8 Combined with Fig. 9 , Fig.10 and Fig.11 , both the first guide groove 111 and the second guide groove 112 extend along the axial direction of the knife shaft 1 , and the technicians may understand that it is sufficient as long as one of the first guide groove 111 and the second guide groove 112 extends along the axial direction of the knife shaft 1 .

[0069] As set up as above, since at least one of the first guide groove 111 and the second guide groove 112 extends along the axial direction of the knife shaft 1, then, during the process of assembling the knife assembly 2, it is only necessary for the knife assembly 2 to move downward along the axial direction of the knife shaft 1, and then after rotating the knife assembly 2, the knife assembly 2 moves downward along the axial direction of the knife shaft 1 again, and the process of disassembling the knife assembly 2 is the opposite. Therefore, the above setting can facilitate the disassembly of the knife assembly 2.

[0070] As a variation of the above embodiment, at least one of the first guide groove 111 and the second guide groove 112 extends upward along the circumferential spiral of the knife shaft 1 .

[0071] As described above, at least one of the first guide groove 111 and the second guide groove 112 is a spiral groove, and such a configuration can also facilitate the disassembly of the knife assembly 2. This function can be understood by referring to the function of at least one of the first guide groove 111 and the second guide groove 112 extending along the axial direction of the knife shaft 1.

[0072] The above two embodiments may also include that one of the first guide groove 111 and the second guide groove 112 spirally rises around the circumference of the knife shaft 1 to form a spiral groove, and the other extends along the axial direction of the knife shaft 1.

[0073] See also Fig.15 , Fig.16 and Fig.17The protrusion 211 is provided on the knife shaft sleeve 21, and the shape of the protrusion 211 along the radial cross section of the knife shaft is a fan ring. As a variation of the fan ring, the shape can also be a square. Fig. 9 , Fig.10 and Fig.11 , the shape of the first guide groove 111 along the radial cross section of the knife shaft 1 and the shape of the second guide groove 112 along the radial cross section of the knife shaft 1 are fan rings. As a variation of the fan ring, the shape of the cross section can also be a square. Further, based on the inspiration of the above embodiment, the shape of the protrusion 211 along the radial cross section of the knife shaft 1, the shape of the first guide groove 111 along the radial cross section of the knife shaft 1 and the shape of the second guide groove 112 along the radial cross section of the knife shaft 1 are the same.

[0074] As configured above, since the cross-sectional shapes are the same, the protrusion 211 is easy to assemble with the first guide groove 111 and the second guide groove 112. Moreover, after assembly, the gap between the protrusion 211 and the second guide groove 112 is small, and food residues are not easily left.

[0075] See also Fig. 9 , Fig.10 and Fig.11 Combined with Figure 6 , Figure 7 and Figure 8 In the case where both the first guide groove 111 and the second guide groove 112 extend along the axial direction of the knife shaft 1, the radial cross-section of the first guide groove 111 and the second guide groove 112 along the knife shaft is a fan ring. As a variation of the fan ring, in other embodiments, the radial cross-section of the first guide groove 111 and the second guide groove 112 may also be square. Fig.15 , Fig.16 and Fig.17 Combined with Fig.18 In an embodiment of the present application, the protrusion 211 is arranged on the knife shaft sleeve 21, and the cross-sectional shape of the protrusion 211 is the same as the cross-sectional shape of the first guide groove 111 and the cross-sectional shape of the second guide groove 112, for example, both are fan rings or both are square.

[0076] As described above, since the first guide groove 111 and the second guide groove 112 are in a sector ring or square shape along the radial cross section of the knife shaft 1, the knife shaft 1 is easy to process. The protrusion 211 is provided on the knife shaft sleeve 21, which also makes the processing of the knife shaft sleeve 21 simple. In particular, in the embodiment in which the knife assembly 2 includes the knife shaft sleeve 21, the fixing nut 22 and the blade 23 as described later, it is easier to process the knife shaft sleeve 21.

[0077] See also Fig.12 , Fig.13 and Fig.14 Combined with Figure 5 , Figure 4 , Figure 2 and Figure 1 The knife assembly includes a fixing nut 22 and a blade 23, and the fixing nut 22 is threadedly connected to the knife shaft sleeve 21 to clamp the blade 23. Thus, the knife assembly 2 can rotate synchronously with the knife shaft 1.

[0078] As described above, the blade 23 is clamped by threading the fixing nut 22 and the blade shaft sleeve 21, and the assembly between the various components of the blade assembly 2 is simple. Accordingly, the blade shaft sleeve 21 is threadedly connected to the fixing nut 22, and the overall height of the blade shaft sleeve 21 is relatively low. Fig.12 and Fig.15 As shown, the blade shaft sleeve 21 may include a first portion forming the protrusion 211 and a second portion threadedly connected to the fixing nut 22 , which also facilitates processing of parts to form the protrusion 211 .

[0079] Combination Figure 1 and Fig.19 In the second aspect, the present application also discloses a food processor. The food processor comprises any of the aforementioned stirring blade assembly 10, a stirring cup 20 and a driving device, and the driving device drives the blade assembly 2 to rotate in the stirring cup 20. The stirring cup 20 and the stirring blade assembly 10 and other components constitute the stirring cup assembly 100. The driving device can be arranged on the host 200. The driving device drives the blade assembly 2 including: 1) the driving device is a motor, and the connection between the stirring blade assembly 10 and the motor is realized by a clutch, and the motor drives the blade assembly 2 to rotate; 2) there is a magnetic force between the driving device and the stirring blade assembly 10, and when the food processor is powered on and in working state, the blade assembly 2 is driven to rotate in the stirring cup 20 by the magnetic force.

[0080] As configured above, the food processor at least has the beneficial effects of the stirring blade assembly, which will not be described in detail.

[0081] The above description is only a preferred implementation mode of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A stirring blade assembly, characterized in that: The stirring blade assembly (10) comprises a blade shaft (1) and a blade assembly (2) detachably mounted on the blade shaft (1), wherein the blade assembly (2) comprises a shaft sleeve cavity (210); One of the side surface of the knife shaft (1) and the cavity wall of the sleeve cavity (210) is provided with a mounting groove (11), and the other is provided with a protrusion (211); The mounting groove (11) comprises a first guide groove (111) and a second guide groove (112) which are staggered in the circumferential direction of the knife shaft (1), the staggered portion forming a blocking portion (113), and the second guide groove (112) and the first guide groove (111) have different heights in the axial direction of the knife shaft (1); The protruding portion (211) enters the second guide groove (112) along the first guide groove (111) and is located in the second guide groove (112).

2. The stirring blade assembly according to claim 1, characterized in that: The second guide groove (112) comprises opposite groove walls, and at least one side of the groove wall is provided with a blocking step (1123); And / or, the blocking portion (113) comprises a blocking wall (1131), and along the axial direction of the knife shaft (1), the blocking wall (1131) is located between the first guide groove (111) and the second guide groove (112).

3. The stirring blade assembly according to claim 2, characterized in that: The blocking wall (1131) is parallel to the radial plane of the knife shaft (1), or the blocking wall (1131) is inclined downwardly toward the first guide groove (111) and forms an acute angle with the radial plane of the knife shaft (1).

4. The stirring blade assembly according to claim 1, characterized in that: The stirring blade assembly comprises a blade disc (3), and the blade shaft (1) is arranged on the blade disc (3); the top end of the first guide groove (111) and the top end of the second guide groove (112) are respectively provided with guide openings (114), and the width of the guide openings (114) decreases along the axial direction of the blade shaft (1) toward the blade disc (3).

5. The stirring blade assembly according to claim 1, characterized in that: The groove depth of the first guide groove (111) is greater than the groove depth of the second guide groove (112); And / or, the knife shaft (1) is provided with a groove (115) circumferentially around the knife shaft (1), and the first guide groove (111) and the second guide groove (112) are connected via the groove (115).

6. The stirring blade assembly according to claim 1, characterized in that: At least one of the first guide groove (111) and the second guide groove (112) extends along the axial direction of the knife shaft (1); Alternatively, at least one of the first guide groove (111) and the second guide groove (112) extends upward along the circumferential spiral of the knife shaft (1).

7. The stirring blade assembly according to claim 6, characterized in that: The knife assembly (2) comprises a knife shaft sleeve (21), and the knife shaft sleeve (21) comprises the sleeve cavity (210); the protrusion (211) is arranged on the knife shaft sleeve (21), and the shape of the protrusion (211) along the radial cross-section of the knife shaft (1), the shape of the first guide groove (111) along the radial cross-section of the knife shaft (1), and the shape of the second guide groove (112) along the radial cross-section of the knife shaft (1) are the same.

8. The stirring blade assembly according to claim 7, characterized in that: When the first guide groove (111) and the second guide groove (112) both extend along the axial direction of the knife shaft (1), the shapes are both fan-shaped or square.

9. The stirring blade assembly according to claim 1, characterized in that: The knife assembly (2) comprises a knife shaft sleeve (21), a fixing nut (22) and a blade (23); the knife shaft sleeve (21) comprises the shaft sleeve cavity (210); the fixing nut (22) and the knife shaft sleeve (21) are threadedly connected to clamp the blade (23).

10. A food processor, characterized in that: The food processor comprises a stirring blade assembly (10) according to any one of claims 1 to 9, a stirring cup (20), and a driving device, wherein the driving device drives the blade assembly (2) to rotate in the stirring cup (20).

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