Food processor

Abstract

The invention provides a food processor. The machine body comprises a machine cover and a driving device arranged in the machine cover; the cooking cup is detachably connected with the hood, and a connecting structure is arranged on the inner bottom surface of the cooking cup; the driving device is in driving connection with the first end of the cutter assembly so as to drive the cutter assembly to rotate; wherein the second end of the cutter assembly and the connecting structures are mutually nested and matched, a first gap is formed between a part of the connecting structures and the second end of the cutter assembly, a second gap is formed between a part of the connecting structures and the second end of the cutter assembly, and the first gap is larger than the second gap. The food processor effectively solves the problem that the service life of the food processor and the use experience of a user are affected due to the fact that the friction force between the fixing shaft and the cutter assembly of the food processor in the prior art is large.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking machines, and more particularly, to a cooking machine. Background Art

[0002] Currently, in the design field of household electric meat grinders, existing technical solutions generally involve installing a fixed shaft at the bottom of the meat grinding cup to support the rotation of the cutter assembly through the fixed shaft. Among them, the lower end of the cutter assembly is sleeved on the fixed shaft, and the upper end is connected to the motor. The operating power of the motor is directly transmitted to the cutter assembly to perform the task of grinding food materials.

[0003] However, the cooperation length between the fixed shaft and the cutter assembly in the prior art is relatively long, which means that the contact area between the two is large. When the motor drives the cutter assembly to rotate, the large contact area will cause significant frictional resistance. This resistance not only consumes the output power of the motor, reduces the working efficiency of the meat grinder, shortens the service life of the meat grinder, but also generates high noise during high-speed operation, affecting the user experience; if the cooperation length between the fixed shaft and the cutter assembly is shortened to reduce the friction force, it may cause the cutter assembly to loosen or even fall off due to the centrifugal force during high-speed rotation. Summary of the Invention

[0004] The main object of the present invention is to provide a cooking machine to solve the problem that the large friction force between the fixed shaft and the cutter assembly of the cooking machine in the prior art affects the service life and user experience of the cooking machine.

[0005] To achieve the above object, the present invention provides a cooking machine, including: a body including a hood and a driving device disposed inside the hood; a cooking cup detachably connected to the hood, and a connection structure is provided on the inner bottom surface of the cooking cup; a cutter assembly, the driving device is drivingly connected to the first end of the cutter assembly to drive the cutter assembly to rotate; wherein, the second end of the cutter assembly is nested and cooperated with the connection structure, a first gap is provided between a part of the connection structure and the second end of the cutter assembly, and a second gap is provided between a part of the connection structure and the second end of the cutter assembly, and the first gap is larger than the second gap.

[0006] Further, the connection structure is a first connecting shaft, the central axis of the first connecting shaft is coaxially arranged with the rotation axis of the cutter assembly, and the first gap is distributed along the circumferential direction and / or the axial direction of the first connecting shaft.

[0007] Further, the cooking machine further includes a second connecting shaft, the first end of the second connecting shaft is disposed on the inner bottom surface of the cooking cup, the first end of the first connecting shaft has a first mounting hole, and the second end of the second connecting shaft extends into the first mounting hole and is connected to the first mounting hole; wherein, the first gap is disposed closer to the first end of the connection structure than the second gap.

[0008] Furthermore, the tool assembly includes: a tool shaft having a second mounting hole; a blade disposed on the outer circumferential surface of the tool shaft; wherein at least a portion of the first connecting shaft extends into the second mounting hole to achieve nested fit between the tool assembly and the connecting structure.

[0009] Furthermore, the first connecting shaft includes a first shaft segment and a second shaft segment connected to each other. The outer diameter D1 of the first shaft segment is greater than the outer diameter D2 of the second shaft segment. A second gap is formed between the outer surface of the first shaft segment and the hole wall of the second mounting hole, and a first gap is formed between the outer surface of the second shaft segment and the hole wall of the second mounting hole; wherein one end of the second shaft segment away from the first shaft segment forms the first end of the first connecting shaft.

[0010] Furthermore, the difference between the outer diameter D1 of the first shaft segment and the outer diameter D2 of the second shaft segment is greater than or equal to 0.1 mm.

[0011] Furthermore, the length L1 of the first shaft segment and the total length L of the first connecting shaft satisfy: 0.5L < L1.

[0012] Furthermore, along the direction from the first shaft segment to the second shaft segment, the outer diameter of the second shaft segment gradually decreases; or, the outer diameter of the second shaft segment first decreases and then increases.

[0013] Furthermore, a chamfered corner is provided at one end of the first shaft segment away from the second shaft segment.

[0014] Furthermore, a groove is provided on the outer surface of the first connecting shaft. A first gap is formed between the groove and the hole wall of the second mounting hole; wherein the groove extends circumferentially along the first connecting shaft; and / or, the groove is an arc-shaped groove or an annular groove.

[0015] Furthermore, there is one groove; or, there are multiple grooves, and the multiple grooves are spaced apart along the axial direction of the first connecting shaft.

[0016] Furthermore, a convex hull is provided on the second shaft segment. There is one convex hull; or, there are multiple convex hulls, and the multiple convex hulls are spaced apart circumferentially and / or axially along the second shaft segment.

[0017] Furthermore, the cooking machine is a meat grinder.

[0018] Applying the technical solution of the present invention, the cooking machine includes a machine body, a cooking cup, and a cutter assembly. The machine body includes a machine cover and a driving device disposed inside the machine cover. The cooking cup is detachably connected to the machine cover, and a connection structure is provided on the inner bottom surface of the cooking cup. The driving device is drivingly connected to the first end of the cutter assembly to drive the cutter assembly to rotate. Among them, the second end of the cutter assembly is nested and cooperated with the connection structure. There is a first gap between a part of the connection structure and the second end of the cutter assembly, and a second gap between a part of the connection structure and the second end of the cutter assembly. The first gap is larger than the second gap. In this way, on the premise of the cooperation length between the connection structure and the cutter assembly, the connection structure and the cutter assembly do not contact at the first gap or have a small contact area at the first gap. During the rotation of the cutter assembly, the above settings of the first gap and the second gap reduce the contact area between the connection structure and the cutter assembly, especially for the parts that generate large friction during high-speed rotation, thereby reducing unnecessary friction, solving the problem in the prior art that the friction between the fixed shaft of the cooking machine and the cutter assembly is large, affecting the service life of the cooking machine and the user experience, thus reducing the noise during the operation of the cooking machine, prolonging the service life of the cooking machine, and improving the user experience. At the same time, the clearance fit between the connection structure and the cutter assembly ensures the stable connection between the cutter assembly and the connection structure, avoids the shaking or falling off of the cutter assembly caused by too loose fit, enhances the operation safety, and also ensures the effectiveness and uniformity of the meat mincing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 Shows a cross-sectional view of Embodiment 1 of a cooking machine according to the present invention;

[0021] Figure 2 Shows Figure 1 An enlarged schematic view of part A of the cooking machine in

[0022] Figure 3 Shows Figure 1 A cross-sectional view of the connection structure of the cooking machine in

[0023] Figure 4 Shows Figure 1 A cross-sectional view of the cooking cup of the cooking machine in

[0024] Figure 5 Shows Figure 1 A three-dimensional structural schematic view of the cutter assembly of the cooking machine in

[0025] Among them, the above-mentioned drawings include the following reference numerals:

[0026] 10. Body; 11. Hood; 12. Driving device;

[0027] 20. Cooking cup;

[0028] 30. Connecting structure; 31. First mounting hole; 32. First shaft section; 33. Second shaft section; 34. Chamfered corner;

[0029] 40. Knife tool assembly; 41. Knife shaft; 411. Second mounting hole; 42. Blade;

[0030] 50. Second connecting shaft. Detailed implementation mode

[0031] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0032] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise stated, the orientation words such as "upper, lower" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for the convenience of understanding and description, "left, right" are usually left and right as shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above orientation words are not used to limit the present invention.

[0034] In order to solve the problem that the friction between the fixed shaft and the knife tool assembly of the existing cooking machine is large, which affects the service life and user experience of the cooking machine, this application provides a cooking machine.

[0035] Embodiment 1

[0036] As Figures 1 to 5 shown, the cooking machine includes a body 10, a cooking cup 20 and a knife tool assembly 40. The body 10 includes a hood 11 and a driving device 12 arranged inside the hood 11. The cooking cup 20 is detachably connected to the hood 11. A connecting structure 30 is arranged on the inner bottom surface of the cooking cup 20. The driving device 12 is drivingly connected to the first end of the knife tool assembly 40 to drive the knife tool assembly 40 to rotate. Among them, the second end of the knife tool assembly 40 is nested and matched with the connecting structure 30. There is a first gap between a part of the connecting structure 30 and the second end of the knife tool assembly 40, and a second gap between a part of the connecting structure 30 and the second end of the knife tool assembly 40. The first gap is larger than the second gap.

[0037] Applying the technical solution of this embodiment, on the premise of the mating length between the connecting structure 30 and the tool assembly 40, the connecting structure 30 and the tool assembly 40 do not contact at the first gap or have a small contact area at the first gap. During the rotation of the tool assembly 40, the above settings of the first gap and the second gap reduce the contact area between the connecting structure 30 and the tool assembly 40. Especially for the parts that generate large friction during high-speed rotation, unnecessary friction is reduced, solving the problem in the prior art that the friction between the fixed shaft of the food processor and the tool assembly is large, affecting the service life of the food processor and the user experience. Thus, the noise during the operation of the food processor is reduced, the service life of the food processor is extended, and the user experience is improved. At the same time, the clearance fit between the connecting structure 30 and the tool assembly 40 ensures the stable connection between the tool assembly 40 and the connecting structure 30, avoiding the shaking or falling off of the tool assembly 40 caused by too loose fit, enhancing the operation safety, and also ensuring the effectiveness and uniformity of the meat grinding process.

[0038] Optionally, the connecting structure 30 is a first connecting shaft, the central axis of the first connecting shaft is coaxially arranged with the rotation axis of the tool assembly 40, and the first gap is distributed along the circumferential direction and / or the axial direction of the first connecting shaft. In this way, the above setting of the first gap reduces the direct contact area between the tool assembly 40 and the first connecting shaft during high-speed rotation on the one hand, so as to reduce the friction generated during the rotation of the tool assembly, and further reduce the noise generated by the friction; on the other hand, the above setting makes the setting position of the first gap more flexible to meet different usage requirements and working conditions, and also improves the processing flexibility of the staff.

[0039] In this embodiment, the connecting structure 30 is a first connecting shaft, the central axis of the first connecting shaft is coaxially arranged with the rotation axis of the tool assembly 40, and the first gap is distributed along the circumferential direction of the first connecting shaft. In this way, the central axis of the first connecting shaft is coaxially arranged with the rotation axis of the tool assembly, ensuring the accurate transmission of the driving force, avoiding additional vibration and energy loss caused by inconsistent axes, and also improving the efficiency of power transmission, making the rotation of the tool assembly 40 more stable, and enhancing the consistency and efficiency of the meat grinding effect. At the same time, the above setting makes the structure of the connecting structure 30 simpler, easier to process and implement, reducing the processing cost and difficulty of the food processor.

[0040] In other embodiments not shown in the drawings, the first gap is distributed along the axial direction of the first connecting shaft.

[0041] In other embodiments not shown in the drawings, the first gap is distributed along the circumferential direction and the axial direction of the first connecting shaft, that is, the first gap spirally winds around the first connecting shaft.

[0042] As Figure 4As shown in the figure, the cooking machine further includes a second connecting shaft 50. The first end of the second connecting shaft 50 is disposed on the inner bottom surface of the cooking cup 20. The first end of the first connecting shaft has a first mounting hole 31. The second end of the second connecting shaft 50 extends into the first mounting hole 31 and is connected to the first mounting hole 31. Among them, the first gap is disposed closer to the first end of the connecting structure 30 than the second gap. In this way, by extending the second end of the second connecting shaft 50 into the first mounting hole 31 provided at the first end of the first connecting shaft, a stable connection method is formed, ensuring that the power is accurately transmitted from the driving device 12 of the machine body 10 to the tool assembly 40. At the same time, the first gap is disposed closer to the first end of the connecting structure than the second gap, which helps to absorb vibrations in the initial stage of power transmission and reduce noise and wear caused by the instantaneous impact force during startup.

[0043] In this embodiment, during the rotation of the tool assembly 40, the differential design of the first gap and the second gap ensures that due to its size setting, the first gap close to the first end (i.e., the power input end) can significantly reduce the contact area between the tool assembly and the connecting structure, thereby reducing the frictional resistance, reducing the energy consumption, and improving the overall efficiency. At the same time, the nested connection between the second connecting shaft 50 and the first connecting shaft, as well as the reasonable distribution of the first gap and the second gap, ensure the structural stability of the tool assembly 40 during high-speed rotation, avoiding the shaking or offset of the tool assembly 40.

[0044] As Figure 5 shown in the figure, the tool assembly 40 includes a tool shaft 41 and a blade 42. The tool shaft 41 has a second mounting hole 411. The blade 42 is disposed on the outer peripheral surface of the tool shaft 41. Among them, at least a part of the first connecting shaft extends into the second mounting hole 411 to achieve the nested fit between the tool assembly 40 and the connecting structure 30. In this way, the tool shaft 41 in the tool assembly 40 is provided with a second mounting hole 411, and at least a part of the first connecting shaft extends into it, realizing the nested fit between the tool assembly and the connecting structure 30, and further ensuring the precise positioning of the tool assembly in the cooking cup 20. Thus, during the process of mincing meat or stirring, the tool assembly 40 can stably maintain the correct position, avoiding the offset or shaking of the tool assembly 40, ensuring the safety of the operation and the consistency of the mincing effect. At the same time, the nested connection between the first connecting shaft and the tool shaft 41 through the second mounting hole 411 forms a direct force transmission link, reducing the energy loss during the force transmission process. The power is directly transmitted from the driving device 12 to the tool shaft 41, and then precisely acts on the blade 42 through the tool shaft 41, thereby improving the working efficiency of the cooking machine.

[0045] As Figure 3As shown, the first connecting shaft includes a first shaft section 32 and a second shaft section 33 that are connected to each other. The outer diameter D1 of the first shaft section 32 is greater than the outer diameter D2 of the second shaft section 33. A second gap is formed between the outer surface of the first shaft section 32 and the hole wall of the second mounting hole 411, and a first gap is formed between the outer surface of the second shaft section 33 and the hole wall of the second mounting hole 411. Among them, one end of the second shaft section 33 away from the first shaft section 32 forms the first end of the first connecting shaft. In this way, the above settings ensure that the fitting clearances between the tool shaft 41 of the tool assembly 40 and the first connecting shaft are different at different shaft sections. Since the first gap between the second shaft section 33 and the tool shaft 41 is larger, it reduces a part of the contact area during high-speed rotation, thereby significantly reducing the friction force and the noise generated by friction, providing a quieter and more comfortable use environment for users. At the same time, the second gap between the first shaft section 32 and the second mounting hole 411 is smaller, which helps to establish a relatively tight fitting relationship between the tool shaft 41 and the first connecting shaft, thereby minimizing energy loss as much as possible while ensuring the accuracy of power transmission. Power is directly and efficiently transmitted from the drive device 12 to the tool assembly 40 through the first shaft section 32, making the rotation of the blade 42 smoother.

[0046] In this embodiment, the first connecting shaft adopts a shaft section design with different outer diameters, and the second gap and the first gap are realized through the first shaft section 32 and the second shaft section 33, which not only improves the working efficiency and use safety of the meat grinder, but also optimizes the assembly and maintenance process of the product, bringing a better use experience to users.

[0047] Optionally, the difference between the outer diameter D1 of the first shaft section 32 and the outer diameter D2 of the second shaft section 33 is greater than or equal to 0.1 mm. In this way, by setting the outer diameter difference between the first shaft section 32 and the second shaft section 33 to be greater than or equal to 0.1 mm, a significant stepped gap is formed between the tool assembly 40 and the first connecting shaft, thereby reducing the contact area between the tool shaft 41 and the first connecting shaft during high-speed rotation, and thus significantly reducing the frictional resistance. At the same time, despite the obvious outer diameter difference, the relatively tight fit between the first shaft section 32 and the second mounting hole 411 ensures the accuracy of power transmission and prevents any unnecessary wobbling or offset of the tool assembly 40 during rotation.

[0048] In this embodiment, the difference between the outer diameter D1 of the first shaft section 32 and the outer diameter D2 of the second shaft section 33 is 0.15 mm.

[0049] It should be noted that the value of the difference between the outer diameter D1 of the first shaft section 32 and the outer diameter D2 of the second shaft section 33 is not limited to this, and can be adjusted according to the working conditions and usage requirements. Optionally, the difference between the outer diameter D1 of the first shaft section 32 and the outer diameter D2 of the second shaft section 33 is 0.18 mm, or 0.20 mm, or 0.25 mm, or 0.28 mm, or 0.30 mm, or 0.50 mm, or 0.8 mm, or 1.0 mm, or 2.0 mm, or 5.0 mm, or 8.0 mm, or 10.0 mm.

[0050] Optionally, the length L1 of the first shaft section 32 and the total length L of the first connecting shaft satisfy: 0.5L < L1. In this way, by setting the relationship between the length L1 of the first shaft section 32 and the total length L of the first connecting shaft as 0.5L < L1, it means that the first shaft section occupies a relatively large proportion of the first connecting shaft. Since the first shaft section 32 forms a relatively tight fit with the tool shaft 41 in the tool assembly 40, the longer first shaft section 32 provides a larger contact area and a longer axial support, thereby increasing the connection strength and stability between the tool assembly 40 and the connection structure 30, and ensuring safety under high-speed operation. At the same time, as the main power transmission section, the increase in the length of the first shaft section 32 is beneficial to improving the efficiency of power transmission. The longer first shaft section 32 can more effectively transmit the motor driving force from the first end of the first connecting shaft to the tool assembly smoothly, reducing the loss of energy during the transmission process, making the rotation of the blade 42 more uniform and powerful, and thus improving the working efficiency and meat grinding effect of the meat grinder.

[0051] Optionally, along the direction from the first shaft section 32 to the second shaft section 33, the outer diameter of the second shaft section 33 gradually decreases; or, the outer diameter of the second shaft section 33 first decreases and then increases. In this way, along the direction from the first shaft section 32 to the second shaft section 33, the outer diameter of the second shaft section 33 gradually decreases, or shows a tapered or concave-convex change trend of first decreasing and then increasing. The above design makes the contact area between the tool assembly 40 and the first connecting shaft further decrease during rotation, especially in the part where the tool assembly has the heaviest load, effectively reducing the friction force and the heat generated by friction, thereby significantly reducing the wear of materials and extending the service life of the tool assembly 40 and the first connecting shaft. At the same time, the design of the change in the outer diameter of the second shaft section 33 can better adapt to different rotation speeds of the tool assembly 40, ensuring the smoothness of power transmission in various operating modes. When the outer diameter gradually decreases, a lighter rotation feeling can be provided; while the design of the outer diameter first decreasing and then increasing helps to maintain the best torque transmission of the tool assembly 40 at different speeds, avoiding fluctuations and unevenness during the power transmission process.

[0052] Such as Figure 2 and Figure 3As shown, a chamfer 34 is provided at one end of the first shaft section 32 away from the second shaft section 33. In this way, by providing the chamfer 34 at one end of the first shaft section 32 away from the second shaft section 33, the stress concentration in this area can be significantly reduced, making the stress distribution more uniform, effectively improving the fatigue resistance of the first shaft section 32 in this area, and prolonging the service life of the meat grinder. At the same time, the setting of the chamfer 34 improves the assembly interface between the first shaft section 32 and the cutter shaft 41. During the assembly process, the chamfer 34 can play a guiding role, making it easier for the first shaft section 32 to align with the corresponding mounting holes, reducing the difficulty of component alignment during assembly. In addition, the chamfer 34 also makes the disassembly operation smoother, avoiding jamming or damage caused by acute angles.

[0053] In this embodiment, the chamfer 34 can reduce the risk of injury when the user accidentally touches the first shaft section, avoiding scratches or cuts that may be caused by acute angles.

[0054] Optionally, a convex hull is provided on the second shaft section 33. The convex hull is one; or, there are multiple convex hulls, and the multiple convex hulls are arranged at intervals along the circumferential and / or axial directions of the second shaft section 33. In this way, by providing one or more convex hulls on the second shaft section 33, additional engagement points can be formed between the cutter assembly 40 and the first connecting shaft, thereby improving the power transmission between the cutter assembly 40 and the driving device 12, ensuring the accuracy and stability of power transmission in the high-speed rotation state. Even when processing hard food ingredients, it is possible to avoid the cutter assembly 40 from slipping or deviating, improving the working efficiency and meat grinding quality of the meat grinder. At the same time, the presence of the convex hull increases the local thickness of the second shaft section 33, thereby enhancing the structural rigidity and anti-deformation ability of this part. When used intensively or subjected to external impacts, the convex hull can effectively resist the bending or twisting of the shaft section due to excessive load, enhancing the structural strength of the second shaft section 33 and prolonging the service life of the meat grinder. In addition, the contact between the convex hull and the cutter assembly 40 may form a slight sealing effect, reducing the possibility of moisture or food residues entering the motor or bearing, and enhancing the waterproof performance of the meat grinder.

[0055] Optionally, the cooking machine is a meat grinder.

[0056] Embodiment 2

[0057] The difference between the cooking machine in Embodiment 2 and that in Embodiment 1 lies in: the structure of the first connecting shaft is different.

[0058] In this embodiment, a groove is provided on the outer surface of the first connecting shaft. A first gap is formed between the groove and the hole wall of the second mounting hole 411. The groove extends circumferentially along the first connecting shaft; and / or, the groove is an arc-shaped groove or an annular groove. In this way, a groove is provided on the outer surface of the first connecting shaft, and a first gap is formed between the groove and the hole wall of the second mounting hole 411, thereby reducing the contact area between the tool assembly and the connecting shaft, reducing the frictional resistance, and reducing the noise generated during the operation of the food processor. At the same time, the above setting makes the selection of the shape of the groove more flexible to meet different usage requirements and working conditions, improving the processing flexibility of the staff.

[0059] Optionally, there is one groove; or, there are multiple grooves, and the multiple grooves are arranged at intervals along the axial direction of the first connecting shaft. In this way, whether it is a single or multiple groove designs, the frictional contact area between the first connecting shaft and the tool assembly 40 can be significantly reduced. Among them, a single long groove can provide a stable low-friction path, while multiple grooves arranged at intervals along the axial direction can disperse the friction points, reduce the overall frictional resistance, thereby improving the motor efficiency, reducing energy consumption, and extending the service life of the meat grinder.

[0060] Optionally, the groove is at least one of a rectangular groove, a V-shaped groove, and a semi-circular groove. In this way, the above setting makes the selection of the shape of the groove more flexible to meet different usage requirements and working conditions, and also improves the processing flexibility of the staff.

[0061] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0062] The cooking machine includes a machine body, a cooking cup, and a cutter assembly. The machine body includes a machine cover and a driving device disposed inside the machine cover. The cooking cup is detachably connected to the machine cover, and a connecting structure is provided on the inner bottom surface of the cooking cup. The driving device is drivingly connected to the first end of the cutter assembly to drive the cutter assembly to rotate. Among them, the second end of the cutter assembly is nested and cooperated with the connecting structure. There is a first gap between a part of the connecting structure and the second end of the cutter assembly, and a second gap between a part of the connecting structure and the second end of the cutter assembly. The first gap is larger than the second gap. In this way, on the premise of the cooperation length between the connecting structure and the cutter assembly, the connecting structure and the cutter assembly do not contact at the first gap or have a small contact area at the first gap. During the rotation of the cutter assembly, the above settings of the first gap and the second gap reduce the contact area between the connecting structure and the cutter assembly, especially for the parts that generate large friction during high-speed rotation, thereby reducing unnecessary friction, solving the problem in the prior art that the friction between the fixed shaft of the cooking machine and the cutter assembly is large, which affects the service life of the cooking machine and the user experience, thus reducing the noise during the operation of the cooking machine, prolonging the service life of the cooking machine, and improving the user experience. At the same time, the gap fit between the connecting structure and the cutter assembly ensures the stable connection between the cutter assembly and the connecting structure, avoids the shaking or falling off of the cutter assembly caused by too loose fit, enhances the operation safety, and also ensures the effectiveness and uniformity of the meat grinding process.

[0063] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0064] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0065] It should be noted that the terms "first", "second", etc. in the description, claims, and drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cooking machine, characterized in that, Comprising: A body (10), including a hood (11) and a driving device (12) disposed within the hood (11); A cooking cup (20), detachably connected to the hood (11), and a connecting structure (30) is provided on the inner bottom surface of the cooking cup (20); A cutter assembly (40), the driving device (12) is drivingly connected to the first end of the cutter assembly (40) to drive the cutter assembly (40) to rotate; Wherein, the second end of the cutter assembly (40) is nested and cooperated with the connecting structure (30), a first gap is provided between a part of the connecting structure (30) and the second end of the cutter assembly (40), and a second gap is provided between a part of the connecting structure (30) and the second end of the cutter assembly (40), and the first gap is larger than the second gap.

2. The cooking machine according to claim 1, wherein The connecting structure (30) is a first connecting shaft, the central axis of the first connecting shaft is coaxially arranged with the rotation axis of the cutter assembly (40), and the first gap is distributed along the circumferential direction and / or the axial direction of the first connecting shaft.

3. The cooking machine according to claim 2, wherein The cooking machine further includes a second connecting shaft (50), the first end of the second connecting shaft (50) is provided on the inner bottom surface of the cooking cup (20), the first end of the first connecting shaft has a first mounting hole (31), and the second end of the second connecting shaft (50) extends into the first mounting hole (31) and is connected to the first mounting hole (31); wherein, the first gap is arranged closer to the first end of the connecting structure (30) relative to the second gap.

4. The cooking machine according to claim 2, characterized in that, The cutter assembly (40) includes: A cutter shaft (41), having a second mounting hole (411); A cutter blade (42), disposed on the outer peripheral surface of the cutter shaft (41); Wherein, at least a part of the first connecting shaft extends into the second mounting hole (411) to achieve the nested cooperation between the cutter assembly (40) and the connecting structure (30).

5. The cooking machine according to claim 4, characterized in that, The first connecting shaft includes a first shaft section (32) and a second shaft section (33) connected to each other, the outer diameter D1 of the first shaft section (32) is larger than the outer diameter D2 of the second shaft section (33), a second gap is formed between the outer surface of the first shaft section (32) and the hole wall of the second mounting hole (411), and a first gap is formed between the outer surface of the second shaft section (33) and the hole wall of the second mounting hole (411); wherein, one end of the second shaft section (33) away from the first shaft section (32) forms the first end of the first connecting shaft.

6. The cooking machine according to claim 5, characterized in that The difference between the outer diameter D1 of the first shaft section (32) and the outer diameter D2 of the second shaft section (33) is greater than or equal to 0.1 mm.

7. The cooking machine according to claim 5, characterized in that The length L1 of the first shaft section (32) and the total length L of the first connecting shaft satisfy: 0.5L < L1.

8. The cooking machine according to claim 5, wherein, Along the direction from the first shaft section (32) to the second shaft section (33), the outer diameter of the second shaft section (33) gradually decreases; or, the outer diameter of the second shaft section (33) first decreases and then increases.

9. The cooking machine according to claim 5, characterized in that, A chamfer (34) is provided at one end of the first shaft section (32) away from the second shaft section (33).

10. The cooking machine according to claim 4, characterized in that, A groove is provided on the outer surface of the first connecting shaft, and a first gap is formed between the groove and the pore wall of the second mounting hole (411); wherein, the groove extends along the circumferential direction of the first connecting shaft; and / or, the groove is an arc groove or an annular groove.

11. The cooking machine according to claim 10, characterized in that, There is one groove; or, there are multiple grooves, and the multiple grooves are arranged at intervals along the axial direction of the first connecting shaft.

12. The cooking machine according to claim 5, characterized in that, A convex hull is provided on the second shaft segment (33), there is one convex hull; or, there are multiple convex hulls, and the multiple convex hulls are arranged at intervals along the circumferential direction and / or the axial direction of the second shaft segment (33).

13. The cooking machine according to claim 1, wherein, The cooking machine is a meat grinder.

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