Stirring knife assembly and food processing equipment

Abstract

The utility model discloses a stirring knife assembly and food processing equipment. The stirring cutter assembly comprises a driving shaft, the driving shaft comprises a first shaft section and a second shaft section, the second shaft section is connected to the upper end of the first shaft section, the diameter of the second shaft section is smaller than that of the first shaft section, and a limiting protrusion protrudes out of the side wall of the second shaft section; the cutter assembly comprises a connecting sleeve and a blade connected to the connecting sleeve, a connecting hole is formed in the connecting sleeve, the connecting sleeve is arranged on the first shaft section in a sleeving mode through the connecting hole, a limiting block protrudes in the connecting hole, and the lower side of the limiting block is used for abutting against the upper end of the first shaft section; the driving shaft and the connecting sleeve can relatively rotate between a first position and a second position; when the limiting block is located at the first position, the upper side of the limiting block is clamped with the limiting bulge so as to fix the relative positions of the connecting sleeve and the driving shaft in the axial direction; when the connecting sleeve is located at the second position, the upper side of the limiting block is separated from the limiting protrusion, and the connecting sleeve can move in the axial direction of the driving shaft. Therefore, the cutter assembly is reliable and convenient to disassemble and assemble, the structure is simple, and the production cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a stirring knife assembly and a food processing device. Background Art

[0002] The functions of food processing devices mainly can include, but are not limited to, functions such as making soy milk, squeezing fruit juice, making rice paste, mincing meat, making shaved ice, making coffee, and / or preparing facial masks. Food processing devices can include machines for crushing and stirring food, such as soy milk makers, blenders, or wall-breaking food processing devices. To facilitate the cleaning of food processing devices, some existing food processing devices detachably assemble the stirring knife disc assembly at the bottom of the stirring cup. After the food processing device is used, the stirring knife disc assembly can be detached for cleaning, but its disassembly is not convenient enough. Summary of the Utility Model

[0003] In order to overcome at least one of the above-mentioned defects of the prior art, the utility model provides a stirring knife assembly and a food processing device, aiming to achieve the stable installation and quick disassembly of the knife assembly on the transmission shaft, and at the same time ensure the concentricity of the overall structure and the stability during high-speed rotation.

[0004] The technical solution adopted by the utility model to solve its problems is as follows:

[0005] A stirring knife assembly includes: a drive shaft, including a first shaft section and a second shaft section, the second shaft section is connected to the upper end of the first shaft section, the diameter of the second shaft section is smaller than that of the first shaft section, and a limiting protrusion protrudes from the side wall of the second shaft section; a knife assembly, including a connecting sleeve and blades connected to the connecting sleeve, a connecting hole is provided in the connecting sleeve, the connecting sleeve is sleeved on the first shaft section through the connecting hole, a limiting block protrudes in the connecting hole, and the lower side of the limiting block is used to abut against the upper end of the first shaft section; the drive shaft and the connecting sleeve can rotate relative to each other between a first position and a second position; when in the first position, the upper side of the limiting block is clamped with the limiting protrusion to fix the relative axial position of the connecting sleeve and the drive shaft; when in the second position, the upper side of the limiting block is separated from the limiting protrusion, and the connecting sleeve can move along the axial direction of the drive shaft.

[0006] According to some embodiments of the utility model, the lower side of the limiting block has an inclined first guiding wall, and the first guiding wall is used to guide the limiting protrusion into the upper side of the limiting block.

[0007] According to some embodiments of the present utility model, the upper side of the limit block has a limit wall and a second guiding wall arranged obliquely. The limit wall, the second guiding wall and the first guiding wall are connected in sequence. The second guiding wall is used to guide the limit protrusion to move towards the limit wall; when the driving shaft and the connecting sleeve are in the first position, the limit protrusion and the limit wall are engaged with each other.

[0008] According to some embodiments of the present utility model, the upper side of the limit block further has an anti - detachment step, and the anti - detachment step is connected between the limit wall and the second guiding wall; when the driving shaft and the connecting sleeve are in the first position, the limit protrusion is clamped between the limit wall and the anti - detachment step.

[0009] According to some embodiments of the present utility model, two limit protrusions are provided, and two limit blocks are provided. The two limit protrusions are respectively arranged on both sides of the second shaft section, and the two limit protrusions and the limit blocks are in one - to - one correspondence and cooperation.

[0010] According to some embodiments of the present utility model, the limit block has an arc - shaped side wall, and the arc - shaped side walls of the two limit blocks are arranged oppositely. The second shaft section is rotatably connected between the two arc - shaped side walls.

[0011] According to some embodiments of the present utility model, an avoidance notch is formed between the ends of the two limit blocks; when the driving shaft and the connecting sleeve are in the second position, the limit protrusion is located in the avoidance notch.

[0012] According to some embodiments of the present utility model, the outer side wall of the connecting sleeve has a holding groove arranged in an inward - concave manner.

[0013] According to some embodiments of the present utility model, the stirring knife assembly further includes a nut. The blade is connected to the lower end of the connecting sleeve, and the nut is threadedly connected to the lower end of the connecting sleeve to fix the relative position of the blade and the connecting sleeve.

[0014] In addition, the present utility model further provides a food processing device, including the stirring knife assembly as described above.

[0015] In summary, the stirring knife assembly and the food processing device provided by the present utility model at least have the following technical effects:

[0016] The connecting sleeve can be sleeved on the driving shaft from top to bottom. The fit between the connecting hole and the first shaft section can meet the overall concentricity requirement, thereby avoiding shaking when the stirring blade assembly rotates at high speed. The lower side of the limiting block can abut against the upper end of the first shaft section to prevent the connecting sleeve from sinking excessively. After the connecting sleeve is sleeved on the driving shaft, rotate the connecting sleeve and the driving shaft relative to each other to the first position, and the limiting block can be clamped and fixed between the upper end of the first shaft section and the limiting protrusion of the second shaft section to limit the movement of the connecting sleeve in the axial direction of the driving shaft, thereby achieving the purpose of installing the blade assembly on the driving shaft; when it is necessary to disassemble the blade assembly, rotate the connecting sleeve and the driving shaft relative to each other to the second position, the limiting protrusion releases the movement restriction on the connecting sleeve, and the connecting sleeve can move upward along the driving shaft, and the connecting sleeve can be directly pulled out from the driving shaft from bottom to top, thereby achieving the purpose of disassembling the blade assembly from the driving shaft; thus, the disassembly and assembly of the blade assembly are relatively reliable and convenient, and the structure is simple, and the production cost is low. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the stirring blade assembly according to an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the state where the blade assembly according to an embodiment of the present invention is removed from the driving shaft;

[0019] Figure 3 It is a schematic cross-sectional structural diagram of the stirring blade assembly according to an embodiment of the present invention;

[0020] Figure 4 It is a schematic structural diagram of the connecting sleeve according to an embodiment of the present invention;

[0021] Figure 5 It is a schematic cross-sectional structural diagram of the connecting sleeve according to an embodiment of the present invention;

[0022] Figure 6 It is a schematic diagram of the mating state of the driving shaft and the connecting sleeve in the first position according to an embodiment of the present invention;

[0023] Figure 7 It is a schematic diagram of the mating state of the driving shaft and the connecting sleeve in the second position according to an embodiment of the present invention.

[0024] Among them, the meanings of the reference numerals are as follows:

[0025] 1. Driving shaft; 11. First shaft section; 12. Second shaft section; 121. Limiting protrusion; 2. Blade assembly; 21. Connecting sleeve; 211. Connecting hole; 212. Limiting block; 2121. First guiding wall; 2122. Second guiding wall; 2123. Anti-detachment step; 2124. Limiting wall; 2125. Arc-shaped side wall; 213. Avoidance notch; 214. Holding groove; 22. Blade; 23. Nut; 3. Disk body. Detailed implementation mode

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Please refer to Figures 1 to 7 , this embodiment discloses a stirring blade assembly, including a driving shaft 1 and a blade assembly 2; the blade assembly 2 includes a connecting sleeve 21 and a blade 22, and the blade 22 is connected to the connecting sleeve 21; the driving shaft 1 includes a first shaft section 11 and a second shaft section 12, the second shaft section 12 is connected to the upper end of the first shaft section 11, the diameter of the second shaft section 12 is smaller than that of the first shaft section 11, and a limiting protrusion 121 protrudes from the side wall of the second shaft section 12; a connecting hole 211 is provided in the connecting sleeve 21, the connecting sleeve 21 is sleeved on the first shaft section 11 through the connecting hole 211, and a limiting block 212 protrudes in the connecting hole 211, and the lower side of the limiting block 212 is used to abut against the upper end of the first shaft section 11; the driving shaft 1 and the connecting sleeve 21 can rotate relative to each other between a first position and a second position; when the driving shaft 1 and the connecting sleeve 21 are in the first position, the upper side of the limiting block 212 is clamped with the limiting protrusion 121 to fix the relative position of the connecting sleeve 21 and the driving shaft 1 in the axial direction; when the driving shaft 1 and the connecting sleeve 21 are in the second position, the upper side of the limiting block 212 is separated from the limiting protrusion 121, and the connecting sleeve 21 can move along the axial direction of the driving shaft 1.

[0031] A stirring blade assembly provided in this embodiment. The connecting sleeve 21 can be sleeved on the driving shaft 1 from top to bottom. The cooperation between the connecting hole 211 and the first shaft section 11 can meet the overall concentricity requirement, thus avoiding shaking when the stirring blade assembly rotates at high speed. The lower side of the limiting block 212 can abut against the upper end of the first shaft section 11 to prevent the connecting sleeve 21 from sinking excessively. After the connecting sleeve 21 is sleeved on the driving shaft 1, the connecting sleeve 21 and the driving shaft 1 are relatively rotated to the first position, and the limiting block 212 can be clamped and fixed between the upper end of the first shaft section 11 and the limiting protrusion 121 of the second shaft section 12 to limit the movement of the connecting sleeve 21 in the axial direction of the driving shaft 1, thereby achieving the purpose of installing the blade assembly 2 on the driving shaft 1; when the blade assembly 2 needs to be disassembled, the connecting sleeve 21 and the driving shaft 1 are relatively rotated to the second position, the limiting protrusion 121 releases the movement restriction on the connecting sleeve 21, and the connecting sleeve 21 can move upward along the driving shaft 1, and the connecting sleeve 21 can be directly pulled out from the driving shaft 1 from bottom to top, thereby achieving the purpose of disassembling the blade assembly 2 from the driving shaft 1; thus, the disassembly and assembly of the blade assembly 2 are relatively reliable and convenient, and the structure is simple, and the production cost is relatively low.

[0032] As Figure 4 and Figure 5 shown, preferably, in this embodiment, the lower side of the limiting block 212 has an inclined first guiding wall 2121. The first guiding wall 2121 is used to guide the limiting protrusion 121 into the upper side of the limiting block 212. It can be understood that when the connecting sleeve 21 is sleeved on the driving shaft 1 from top to bottom, the limiting protrusion 121 will first contact the inclined first guiding wall 2121, and the limiting protrusion 121 and the first guiding wall 2121 slide relative to each other. The first guiding wall 2121 can guide the limiting protrusion 121 to the upper side of the limiting block 212, thereby facilitating the subsequent clamping of the limiting protrusion 121 on the upper side of the limiting block 212.

[0033] As Figure 4 and Figure 5As shown, further, in this embodiment, the upper side of the limit block 212 has a limit wall 2124 and an inclined second guiding wall 2122. The limit wall 2124, the second guiding wall 2122, and the first guiding wall 2121 are connected in sequence. Specifically, the limit wall 2124 and the second guiding wall 2122 are connected at an angle, the second guiding wall 2122 and the first guiding wall 2121 are opposite and connected at an angle. The second guiding wall 2122 is used to guide the limit protrusion 121 to move towards the limit wall 2124. When the drive shaft 1 and the connecting sleeve 21 are in the first position, the limit protrusion 121 and the limit wall 2124 are engaged. Specifically, after the limit protrusion 121 leaves the first guiding wall 2121, the connecting sleeve 21 and the drive shaft 1 rotate relative to each other, the limit protrusion 121 contacts the second guiding wall 2122, and the limit protrusion 121 and the second guiding wall 2122 can slide relative to each other, so as to facilitate the stable engagement between the limit protrusion 121 and the limit wall 2124.

[0034] As Figure 4 and Figure 5 shown, preferably, in this embodiment, in order to improve the engagement stability between the limit protrusion 121 and the limit wall 2124, the upper side of the limit block 212 also has an anti - detachment step 2123, and the anti - detachment step 2123 is connected between the limit wall 2124 and the second guiding wall 2122. When the drive shaft 1 and the connecting sleeve 21 are in the first position, the limit protrusion 121 is engaged between the limit wall 2124 and the anti - detachment step 2123. In this way, it is possible to prevent the limit protrusion 121 from disengaging from the upper side of the limit wall 2124, so that the drive shaft 1 can stably drive the tool assembly 2 to rotate.

[0035] As Figure 2 and Figure 3 shown, preferably, in this embodiment, in order to improve the connection stability between the drive shaft 1 and the connecting sleeve 21 when the drive shaft 1 and the connecting sleeve 21 are in the first position, two limit protrusions 121 are provided, and two limit blocks 212 are provided. The two limit protrusions 121 are respectively arranged on both sides of the second shaft section 12, and the two limit protrusions 121 and the limit blocks 212 are in one - to - one correspondence and cooperation.

[0036] It should be noted that in some other embodiments, the number of the limit protrusions 121 can also be but is not limited to 1, 3, 4, etc., which is selected according to actual needs and is not uniquely defined here.

[0037] As Figure 4 and Figure 5As shown, preferably, in this embodiment, the limiting block 212 has an arc-shaped side wall 2125. The arc-shaped side walls 2125 of the two limiting blocks 212 are arranged oppositely. The second shaft section 12 is rotatably connected between the two arc-shaped side walls 2125. The cooperation between the second shaft section 12 and the two arc-shaped side walls 2125 can provide guidance for the relative rotation between the drive shaft 1 and the connecting sleeve 21, thereby improving the rotational stability between the drive shaft 1 and the connecting sleeve 21 and avoiding wobbling when the drive shaft 1 and the connecting sleeve 21 rotate relative to each other.

[0038] As Figure 4 , Figure 6 and Figure 7 shown, specifically, in this embodiment, an avoidance notch 213 is formed between the ends of the two limiting blocks 212. When the drive shaft 1 and the connecting sleeve 21 are in the second position, the limiting protrusion 121 is located within the avoidance notch 213. In this way, when disassembling the knife assembly 2 from the drive shaft 1, collision interference between the limiting protrusion 121 and the limiting block 212 can be avoided, which is beneficial for the connecting sleeve 21 to move upward along the drive shaft 1 to achieve the disassembly of the knife assembly 2.

[0039] As Figure 2 and Figure 3 shown, preferably, in this embodiment, the outer side wall of the connecting sleeve 21 has a recessed grip groove 214 for human hands to grip, so as to facilitate the application of force by human hands to the connecting sleeve 21 to sleeved the connecting sleeve 21 onto the drive shaft 1 from top to bottom or pull out the connecting sleeve 21 from the drive shaft 1 from bottom to top.

[0040] As Figure 3 shown, preferably, in this embodiment, the knife assembly 2 further includes a nut 23. The blade 22 is connected to the lower end of the connecting sleeve 21, and the nut 23 is threadedly connected to the lower end of the connecting sleeve 21 to fix the relative positions of the blade 22 and the connecting sleeve 21.

[0041] As Figure 2 and Figure 3 shown, preferably, in this embodiment, the limiting protrusion 121 is a columnar shape extending horizontally.

[0042] Specifically, in this embodiment, the stirring knife assembly further includes a disk body 3, and the first shaft section 11 is connected to the disk body 3.

[0043] In addition, this embodiment also provides a food processing device, including the stirring knife assembly as described above, which has all the advantages of the above-mentioned stirring knife assembly and will not be elaborated here.

[0044] In summary, the stirring knife assembly and the food processing device disclosed by the present utility model can at least bring the following beneficial technical effects:

[0045] 1) The fit between the connecting hole 211 and the first shaft section 11 can meet the overall concentricity requirement, thus avoiding shaking during the high-speed rotation of the stirring blade assembly;

[0046] 2) The connecting sleeve 21 can be sleeved on the drive shaft 1 from top to bottom or pulled out from the drive shaft 1 from bottom to top. The disassembly and assembly of the blade assembly 2 are relatively reliable and convenient, with a simple structure and low production cost;

[0047] 3) The first guiding wall 2121 can guide the limiting protrusion 121 to the upper side of the limiting block 212, thus facilitating the subsequent engagement of the limiting protrusion 121 on the upper side of the limiting block 212;

[0048] 4) The limiting protrusion 121 and the second guiding wall 2122 can slide relative to each other, thus facilitating the formation of a stable engagement between the limiting protrusion 121 and the limiting wall 2124;

[0049] 5) The limiting protrusion 121 is engaged between the limiting wall 2124 and the anti-disengagement step 2123 to prevent the limiting protrusion 121 from disengaging from the upper side of the limiting wall 2124, so that the drive shaft 1 can stably drive the blade assembly 2 to rotate.

[0050] The technical means disclosed in the solution of the present utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A stirring blade assembly, characterized in that: include: A drive shaft (1) comprises a first shaft section (11) and a second shaft section (12), wherein the second shaft section (12) is connected to the upper end of the first shaft section (11), the diameter of the second shaft section (12) is smaller than the diameter of the first shaft section (11), and a limiting protrusion (121) is protruded from a side wall of the second shaft section (12); A knife assembly (2) comprises a connecting sleeve (21) and a blade (22) connected to the connecting sleeve (21); a connecting hole (211) is provided in the connecting sleeve (21); the connecting sleeve (21) is sleeved on the first shaft section (11) through the connecting hole (211); a limiting block (212) protrudes in the connecting hole (211); the lower side of the limiting block (212) is used to abut against the upper end of the first shaft section (11); the driving shaft (1) and the The connecting sleeve (21) can rotate relatively between a first position and a second position; when in the first position, the upper side of the limiting block (212) is engaged with the limiting protrusion (121) to fix the relative axial position of the connecting sleeve (21) and the drive shaft (1); when in the second position, the upper side of the limiting block (212) is separated from the limiting protrusion (121), and the connecting sleeve (21) can move along the axial direction of the drive shaft (1).

2. The stirring blade assembly according to claim 1, characterized in that: The lower side of the limiting block (212) has a first guide wall (2121) which is arranged obliquely, and the first guide wall (2121) is used to guide the limiting protrusion (121) to enter the upper side of the limiting block (212).

3. The stirring blade assembly according to claim 2, characterized in that: The upper side of the limiting block (212) is provided with a limiting wall (2124) and a second guide wall (2122) which is arranged obliquely; the limiting wall (2124), the second guide wall (2122) and the first guide wall (2121) are connected in sequence; the second guide wall (2122) is used to guide the limiting protrusion (121) to move toward the limiting wall (2124); when the driving shaft (1) and the connecting sleeve (21) are in the first position, the limiting protrusion (121) and the limiting wall (2124) are engaged with each other.

4. The stirring blade assembly according to claim 3, characterized in that: The upper side of the limiting block (212) also has an anti-slip step (2123), and the anti-slip step (2123) is connected between the limiting wall (2124) and the second guide wall (2122); when the drive shaft (1) and the connecting sleeve (21) are in the first position, the limiting protrusion (121) is clamped between the limiting wall (2124) and the anti-slip step (2123).

5. The stirring blade assembly according to claim 1, characterized in that: Two limiting protrusions (121) are provided, and two limiting blocks (212) are provided. The two limiting protrusions (121) are respectively provided on both sides of the second shaft section (12), and the two limiting protrusions (121) and the limiting blocks (212) are matched one by one.

6. The stirring blade assembly according to claim 5, characterized in that: The limit block (212) has an arc-shaped side wall (2125), the arc-shaped side walls (2125) of the two limit blocks (212) are arranged opposite to each other, and the second shaft section (12) is rotatably connected between the two arc-shaped side walls (2125).

7. The stirring blade assembly according to claim 5, characterized in that: An avoidance gap (213) is formed between the ends of the two limit blocks (212); when the drive shaft (1) and the connecting sleeve (21) are in the second position, the limit protrusion (121) is located in the avoidance gap (213).

8. The stirring blade assembly according to claim 1, characterized in that: The outer side wall of the connecting sleeve (21) has a holding groove (214) which is concavely arranged.

9. The stirring blade assembly according to any one of claims 1 to 8, characterized in that: The knife assembly (2) further comprises a nut (23), the blade (22) being connected to the lower end of the connecting sleeve (21), and the nut (23) being threadedly connected to the lower end of the connecting sleeve (21) to fix the relative position of the blade (22) and the connecting sleeve (21).

10. Food processing equipment, characterized in that It comprises a stirring blade assembly as described in any one of claims 1 to 9.

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