Cutting knife device and food cutting apparatus

Abstract

The application relates to a cutting knife device and a food cutting device. The cutting knife device comprises a blade assembly and a rotating shaft. The blade assembly comprises a first blade and a first connecting column. The first blade comprises a first section and a second section connected with each other. The first connecting column is matched with the first blade, and a first connecting hole is coaxially aligned with a first shaft hole. The blade assembly is sleeved on the rotating shaft through the first connecting hole and the first shaft hole. The first section and the second section are located in the same horizontal plane and are centrally symmetrically arranged relative to a connecting center. The opposite ends of the first section and the second section are upwardly folded along the longitudinal direction of the first connecting column, so that the first section and the second section are configured to have flat surfaces and folded surfaces arranged at an included angle. The upwardly folded folded surfaces are arranged at the ends of the first section and the second section, the lifting force generated by the folded surfaces is utilized to promote the up-and-down turning of food materials, the problem of uneven cutting caused by the accumulation of food materials in traditional devices is effectively solved, and efficient cutting of the food materials is realized.

Description

Technical Field

[0001] This application relates to the field of cutting knife device technology, and in particular to a cutting knife device and food cutting equipment. Background Technology

[0002] With the development of technology in furniture, kitchen and bathroom appliances, more and more household appliances have entered people's lives, bringing great convenience to people's lives.

[0003] Among numerous household appliances, food cutting equipment has become an indispensable product in modern homes. It can grind meat, as well as mince garlic, crush peanuts, sesame seeds, and other ingredients requiring similar processing. However, existing food cutting equipment on the market cannot achieve uniform food grinding and is inefficient. Utility Model Content

[0004] Therefore, it is necessary to provide a cutting blade device and food cutting equipment to address the above problems.

[0005] A cutting blade device for food cutting equipment, the cutting blade device comprising:

[0006] A blade assembly includes a first blade and a first connecting post; the first blade includes a first segment and a second segment connected to each other, and a through first shaft hole is formed at the connection center of the two segments; the first connecting post has a through first connecting hole along its longitudinal direction; the first connecting post mates with the first blade, and the first connecting hole and the first shaft hole are coaxially aligned; and

[0007] A rotating shaft, wherein the blade assembly is sleeved on the rotating shaft through the first connecting hole and the first shaft hole;

[0008] The first segment and the second segment are located in the same horizontal plane and are centrally symmetrical about the connection center. The two ends of the first segment and the second segment opposite to each other are folded upward along the longitudinal direction of the first connecting column, so that the first segment and the second segment are constructed to have a flat surface and a folded surface set at a first included angle A.

[0009] In one embodiment, the flat surface and the folded surface are configured to have a smooth transition connection.

[0010] In one embodiment, the width of the folded surface of the first segment gradually increases in the direction from the connection center to the outer end of the first segment; and the width of the folded surface of the second segment gradually increases in the direction from the connection center to the outer end of the second segment.

[0011] In one embodiment, the first included angle A between the flat surface and the folded surface satisfies the condition: 90°≤A≤120°.

[0012] In one embodiment, the first blade is provided with a reinforcing part, and the first connecting post is provided with a mating part, wherein the reinforcing part and the mating part are in a concave-convex fit.

[0013] In one embodiment, the first blade is integrally formed with the first connecting post.

[0014] In one embodiment, the first blade further includes a third segment, wherein the first segment and the second segment are respectively coupled to a first end and a second end of the third segment that are disposed opposite to each other, and the first segment, the second segment, and the third segment itself are centrally symmetrical about the center of the third segment.

[0015] The first shaft hole is located at the center of the third segment; both the first end and the second end are bent downwards along the longitudinal direction of the first connecting post.

[0016] In one embodiment, the second included angle B formed by the bending of the first end and the second end relative to the third segment satisfies the condition: 90°≤B≤120°.

[0017] In one embodiment, the blade assembly further includes a plurality of second blades, wherein the first blade is disposed below all the second blades; all the second blades are spaced apart around the periphery of the first connecting post; and / or all the second blades are spaced apart along the longitudinal direction of the first connecting post.

[0018] A food cutting device includes a cutting blade device as described in the foregoing embodiments.

[0019] The aforementioned cutting blade device and food cutting equipment include a blade assembly and a rotating shaft. The blade assembly includes a first blade and a first connecting post. The first blade comprises a first segment and a second segment connected to each other, with a through-hole formed at the connection center of the two segments. The first connecting post has a through-hole extending along its longitudinal direction. The first connecting post mates with the first blade, and the first connecting hole and the first shaft hole are coaxially aligned. The blade assembly is fitted onto the rotating shaft through the first connecting hole and the first shaft hole.

[0020] Understandably, the specific steps for assembling the cutting blade device into the food cutting equipment are as follows: First, the blade assembly is fitted onto the rotating shaft, and the rotating shaft, together with the blade assembly, is rotatably connected to the cup body; then, the cup lid is placed on the cup body, with the rotating shaft partially exposed; finally, the drive unit is driven to engage with the exposed portion of the rotating shaft. In this way, the drive unit can drive the rotating shaft to rotate around its own axis, and the rotating shaft can drive the blade assembly to rotate synchronously, thereby using the first blade to cut the food inside the cup.

[0021] Furthermore, the first and second segments are located in the same horizontal plane and are centrally symmetrically arranged at their respective connection centers. The two opposite ends of the first and second segments are folded upwards along the longitudinal direction of the first connecting column, so that the first and second segments are constructed to have a flat surface and a folded surface arranged at an angle.

[0022] Understandably, during the cutting process, the first blade rotates at high speed with the shaft, its flat surface cutting the food, while the folding surfaces of the first and second sections provide an upward lifting force. This allows the food to tumble within the cup, preventing it from piling up at the bottom and resulting in uneven cutting.

[0023] In addition, the centrally symmetrical arrangement of the first and second sections can effectively avoid vibration and noise caused by uneven force on the first blade during rotation, and help ensure that the food is subjected to more uniform force during cutting, enhance the uniformity of food crushing, and improve the stability of equipment operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the blade assembly in this application from a first-view perspective.

[0025] Figure 2 This is a schematic diagram of the blade assembly in this application from a second perspective.

[0026] Figure 3 This is a schematic diagram of the blade assembly in this application from a third-person perspective.

[0027] Figure 4 This is a schematic diagram of the cutting blade device in this application.

[0028] Figure 5 This is a schematic diagram of the food cutting equipment in this application.

[0029] Figure Labels

[0030] Cutting blade device 100;

[0031] Blade assembly 10;

[0032] First blade 11; First segment 111; Second segment 112; First shaft hole 113; Flat surface 114; Folded surface 115; Reinforcing part 116; Third segment 117; First end 118; Second end 119; First included angle A; Second included angle B;

[0033] First connecting post 12;

[0034] 13-axis rotating shaft; 14-blade second blade;

[0035] Food cutting equipment 200;

[0036] Cup body 20; mounting part 21; cup lid 22. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0043] With the development of technology in furniture, kitchen and bathroom appliances, more and more household appliances have entered people's lives, bringing great convenience to people's lives.

[0044] Among numerous household appliances, food cutting equipment has become an indispensable product in modern homes. It can grind meat, as well as mince garlic, crush peanuts, sesame seeds, and other ingredients requiring similar processing. However, existing food cutting equipment on the market cannot achieve uniform food grinding and is inefficient.

[0045] Therefore, to resolve the above issues, please refer to [link / reference needed]. Figures 1 to 5This application provides a food cutting device 200 in one or more embodiments. The food cutting device 200 includes a cutting blade device 100, a cup body 20, a cup lid 22, and a driving component. The cutting blade device 100 is rotatably coupled inside the cup body 20, the cup lid 22 covers the cup body 20, and at least a portion of the rotating shaft 13 of the cutting blade device 100 is exposed outside the cup lid 22 and is driven and coupled with the driving component.

[0046] Please see Figures 1 to 3 The cutting blade device 100 in this embodiment of the application provides upwardly folded surfaces 115 at the ends of the first segment 111 and the second segment 112. The lifting force generated by the folded surfaces 115 promotes the upward and downward movement of the food, effectively solving the problem of uneven cutting caused by food accumulation in traditional equipment and achieving efficient cutting of the food. Furthermore, the cutting blade device 100 also reduces vibration and noise during operation and improves overall operational stability by setting the first segment 111 and the second segment 112 of the first blade 11 to a centrally symmetrical structure.

[0047] Specifically, please see Figures 1 to 3 The cutting blade device 100 includes a blade assembly 10 and a rotating shaft 13. The blade assembly 10 includes a first blade 11 and a first connecting post 12. The first blade 11 includes a first segment 111 and a second segment 112 connected to each other, and a through first shaft hole 113 is formed at the connection center of the two segments. A first connecting hole is formed on the first connecting post 12, extending along its longitudinal direction. The first connecting post 12 mates with the first blade 11, and the first connecting hole and the first shaft hole 113 are coaxially aligned. The blade assembly 10 is sleeved on the rotating shaft 13 through the first connecting hole and the first shaft hole 113.

[0048] Understandably, the specific steps for assembling the cutting blade device 100 into the food cutting equipment 200 are as follows: First, the blade assembly 10 is fitted onto the rotating shaft 13, and the rotating shaft 13, together with the blade assembly 10, is rotatably connected to the cup body 20; then, the cup lid 22 is placed on the cup body 20, with part of the rotating shaft 13 exposed outside the lid 22; finally, the drive unit is driven to engage with the exposed part of the rotating shaft 13. In this way, the drive unit can drive the rotating shaft 13 to rotate around its own axis, and the rotating shaft 13 can drive the blade assembly 10 to rotate synchronously, thereby using the first blade 11 to cut the food inside the cup body 20.

[0049] Further, please see Figure 1 and Figure 2 The first segment 111 and the second segment 112 are located in the same horizontal plane 114, and are centrally symmetrical about their connection center. The two ends of the first segment 111 and the second segment 112 are folded upward along the longitudinal direction of the first connecting post 12, so that the first segment 111 and the second segment 112 are constructed to have a straight surface 114 and a folded surface 115 arranged at an angle.

[0050] Understandably, during the cutting operation of the food inside the cup body 20 using the cutting blade device 100, the first blade 11 rotates at high speed with the rotating shaft 13, and the flat surface 114 can cut the food, while the folded surfaces 115 of the first segment 111 and the second segment 112 will generate an upward lifting force on the food. In this way, the food can be tumbled up and down inside the cup body 20, avoiding the food from piling up at the bottom of the cup and causing uneven cutting.

[0051] In addition, the centrally symmetrical arrangement of the first segment 111 and the second segment 112 can effectively avoid the vibration and noise caused by uneven force during the rotation of the first blade 11, and help ensure that the food is subjected to more uniform force during the cutting process, enhance the uniformity of food crushing, and improve the stability of equipment operation.

[0052] In some embodiments, see Figure 1 and Figure 2 The flat surface 114 and the folded surface 115 are configured to have a smooth transition connection.

[0053] Understandably, a smooth transition connection can effectively reduce stress concentration at the connection between the folded surface 115 and the flat surface 114, preventing the blade from breaking or deforming due to excessive stress during long-term high-speed rotation, thereby extending the service life of the cutting blade device 100.

[0054] In addition, a smooth transition can reduce the frictional resistance between the food and the blade surface during the turning process, making the food flow more smoothly and further improving cutting efficiency and uniformity.

[0055] In some embodiments, see Figure 1 and Figure 3 In the direction from the connection center to the outer end of the first segment 111, the width of the folded surface 115 of the first segment 111 gradually increases. In the direction from the connection center to the outer end of the second segment 112, the width of the folded surface 115 of the second segment 112 gradually increases.

[0056] Understandably, during the cutting operation of the food inside the cup body 20 using the cutting blade device 100, the centrifugal force generated by the first segment 111 and the second segment 112 gradually increases in the direction from the connection center to their outer ends. Therefore, this application sets the width of the folding surface 115 to gradually increase in this direction, which enables the folding surface 115 to generate a stronger lifting force in the outer end area where the centrifugal force is greater, thereby effectively pushing the food at the edge and bottom of the cup body 20 upward and preventing the food from accumulating in these areas.

[0057] Please see Figure 1 and Figure 2In this application, a first included angle A is formed between the flat surface 114 and the folded surface 115. The first included angle A is the angle between the tangent of the end of the folded surface 115 away from the flat surface 114 and the flat surface 114.

[0058] Understandably, the specific value of the first included angle A satisfies the condition: 90°≤A≤120°. This ensures that the angle formed by the folded surface 115 and the flat surface 114 is not too sharp, facilitating the cleaning of the first blade 11 and reducing the risk of hand cuts during the cleaning process. Simultaneously, it ensures that the folded surface 115 has sufficient force to lift the food, allowing it to flip smoothly upwards and preventing a weakened lifting effect due to an angle that is too small or too large, thus affecting the overall uniformity of the food's cutting.

[0059] It should be noted that the specific value of the first included angle A is not limited. In practical applications, the specific value of the first included angle A can be adaptively adjusted according to the type and hardness of the food and the desired cutting effect.

[0060] For example, for softer ingredients such as meat and vegetables, the first included angle A can be set to 120°-150°. Within this range, the lifting force generated by the folding surface 115 is relatively gentle, which can slowly turn the ingredients and prevent them from splashing due to excessive lifting force.

[0061] For harder ingredients such as nuts and beans, the first included angle A can be increased to 90°-120°. Within this range, the upward pushing force of the folding surface 115 on the ingredients can be effectively enhanced, ensuring that these ingredients can fully participate in the cutting process and preventing excessive accumulation at the bottom of the cup body 20 due to gravity.

[0062] For example, in this application, please refer to Figure 1 and Figure 2 The first included angle A between the flat surface 114 and the folded surface 115 is 90°.

[0063] Understandably, when the first included angle A is set to 90°, the folded surface 115 is perpendicular to the flat surface 114. This structure allows the folded surface 115 to act on the food at the maximum vertical angle when the cutting blade device 100 rotates at high speed. The vertical folded surface 115 can more directly generate an upward thrust on the food below during rotation, enhancing the vertical convection effect of the food within the cup body 20.

[0064] In some embodiments, see Figure 1 and Figure 2 The first blade 11 is provided with a reinforcing part 116, and the first connecting post 12 is provided with a mating part, and the reinforcing part 116 and the mating part are in a concave-convex fit.

[0065] It is understandable that the interlocking of the reinforcing part 116 and the mating part can increase the contact area between the first blade 11 and the first connecting post 12, thereby improving the connection strength between the first blade 11 and the first connecting post 12 and preventing the connection between the two from loosening or even separating when rotating at high speed for a long time or cutting hard food.

[0066] In this application, if the reinforcing part 116 is a through hole arranged circumferentially along the connection center of the first blade 11, the mating part is a protrusion provided at the bottom of the first connecting post 12. By embedding the protrusion into the corresponding through hole, the contact area between the first blade 11 and the first connecting post 12 can be increased, thereby improving the connection strength between the first blade 11 and the first connecting post 12.

[0067] Further, please see Figure 1 and Figure 2 The first blade 11 and the first connecting post 12 are integrally formed.

[0068] Understandably, the one-piece molding design can reduce or even eliminate the connection gap between the first blade 11 and the first connecting post 12, thereby avoiding loosening of the connection between the first blade 11 and the first connecting post 12 due to assembly errors or long-term use, effectively improving the overall structural strength and stability of the cutting blade device 100. Furthermore, it can avoid food residue and bacterial growth problems that may occur due to the connection gap, facilitating cleaning and maintenance, and contributing to improved hygiene and safety of the food cutting equipment 200.

[0069] Meanwhile, the one-piece molding design can reduce the number of parts required for assembling the first blade 11 and the first connecting post 12, simplify the production and assembly process, and reduce manufacturing costs.

[0070] It should be noted that in the prior art, the cup body 20 of the food cutting device 200 has a protruding mounting part on the bottom wall for mounting the rotating shaft 13. Therefore, the mounting part will cause a gap to be formed between the blade assembly 10 sleeved on the rotating shaft 13 and the bottom wall of the cup body 20. When the food cutting device 200 cuts food, some food will remain in the gap between the blade assembly 10 and the bottom wall of the cup body 20 and cannot be fully cut, which seriously leads to food waste and poor cutting effect.

[0071] Therefore, in some embodiments of this application, please refer to Figure 1 and Figure 3The first blade 11 also includes a third segment 117. The first segment 111 and the second segment 112 are respectively connected to the first end 118 and the second end 119 of the third segment 117, which are respectively arranged opposite each other. The first segment 111, the second segment 112, and the third segment 117 itself are arranged in a centrally symmetrical manner with respect to the center of the third segment 117. The first shaft hole 113 is opened at the center of the third segment 117. The first end 118 and the second end 119 are both bent downward along the longitudinal direction of the first connecting post 12.

[0072] It is understood that by bending the first end 118 and the second end 119 downward to form a structure that matches the height of the mounting part, this application can make the height difference formed by bending the first end 118 and the second end 119 slightly smaller than the height of the mounting part for mounting the rotating shaft 13 protruding on the bottom wall of the cup body 20 of the food cutting device 200. This effectively shortens the gap between the first blade 11 and the bottom wall of the cup body 20, so that the first segment 111 and the second segment 112 are closer to the bottom of the cup during rotation. This ensures that the first blade 11 can cut the residual food in the area around the mounting part that is difficult for the existing food cutting device 200 to reach, and avoids the problem of food waste caused by the gap formed by the protrusion of the mounting part.

[0073] It should be noted that the main purpose of making the height difference formed by the bend slightly less than the height of the mounting part is to ensure a reasonable gap between the blade and the bottom of the cup to avoid friction, while maximizing the effective stirring and cutting of the food in the space around the mounting part.

[0074] In this application, the third segment 117 has a first end 118, a second end 119, and an intermediate portion located between the first end 118 and the second end 119. The second included angle B formed by the first end 118 and the second end 119 relative to the third segment 117 refers to: the included angle between the first segment 111 and the first end 118, the included angle between the intermediate portion and the first end 118, the included angle between the intermediate portion and the second end 119, and the included angle between the second segment 112 and the second end 119.

[0075] Understandably, the specific value of the second included angle B is not limited. In practical applications, the value of the second included angle B can be flexibly set according to the height of the mounting part and the curvature of the bottom wall of the cup body 20.

[0076] Please refer to some embodiments of this application. Figure 1 and Figure 3 The second included angle B formed by the bending of the first end 118 and the second end 119 relative to the third segment 117 satisfies the condition: 90°≤B≤120°.

[0077] Understandably, the value of the second included angle B is set between 90° and 120° to ensure that the overall structure of the first blade 11 has sufficient rigidity and to prevent the first blade 11 from deforming or breaking at high speed due to excessive bending.

[0078] In some embodiments, see Figure 4 and Figure 5 The blade assembly 10 also includes a plurality of second blades 14, with the first blade 11 disposed below all the second blades 14.

[0079] Understandably, the first blade 11 can perform preliminary cutting or stirring of the food that sinks to the bottom of the cup 20; the second blade 14 located above the first blade 11 can perform secondary cutting of the food that is lifted up by the folded surface 115, so as to effectively improve the cutting efficiency and uniformity of the food cutting equipment 200.

[0080] Further, please see Figure 4 and Figure 5 All the second blades 14 are spaced around the periphery of the first connecting post 12.

[0081] Understandably, the second blade 14, spaced apart around the connecting column, can cut food from different angles, avoiding dead angles caused by cutting in one direction.

[0082] Furthermore, please see Figure 4 and Figure 5 All the second blades 14 are spaced apart along the longitudinal direction of the first connecting post 12.

[0083] Understandably, the second blades 14, spaced apart along the longitudinal direction, can simultaneously process ingredients of different heights to further optimize the cutting effect.

[0084] The technical features of the above embodiments can be combined in any way. In order to make the description concise, all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A cutting blade device for food cutting equipment, characterized in that, The cutting blade device includes: A blade assembly includes a first blade and a first connecting post; the first blade includes a first segment and a second segment connected to each other, and a through first shaft hole is formed at the connection center of the two segments; the first connecting post has a through first connecting hole along its longitudinal direction; the first connecting post mates with the first blade, and the first connecting hole and the first shaft hole are coaxially aligned; and A rotating shaft, wherein the blade assembly is sleeved on the rotating shaft through the first connecting hole and the first shaft hole; The first segment and the second segment are located in the same horizontal plane and are centrally symmetrical about the connection center. The two ends of the first segment and the second segment opposite to each other are folded upward along the longitudinal direction of the first connecting column, so that the first segment and the second segment are constructed to have a flat surface and a folded surface set at a first included angle A.

2. The cutting blade device according to claim 1, characterized in that, The flat surface and the folded surface are configured to have a smooth transition connection.

3. The cutting blade device according to claim 1, characterized in that, In the direction from the connection center to the outer end of the first segment, the width of the folded surface of the first segment gradually increases; in the direction from the connection center to the outer end of the second segment, the width of the folded surface of the second segment gradually increases.

4. The cutting blade device according to claim 1, characterized in that, The first included angle A between the flat surface and the folded surface satisfies the condition: 90°≤A≤120°.

5. The cutting blade device according to claim 1, characterized in that, The first blade is provided with a reinforcing part, and the first connecting post is provided with a mating part, wherein the reinforcing part and the mating part are in a concave-convex fit.

6. The cutting blade device according to claim 5, characterized in that, The first blade and the first connecting post are integrally formed.

7. The cutting blade device according to any one of claims 1 to 6, characterized in that, The first blade further includes a third segment, wherein the first segment and the second segment are respectively connected to the first end and the second end of the third segment which are disposed opposite to each other, and the first segment, the second segment, and the third segment itself are centrally symmetrical about the center of the third segment. The first shaft hole is located at the center of the third segment; both the first end and the second end are bent downwards along the longitudinal direction of the first connecting post.

8. The cutting blade device according to claim 7, characterized in that, The second included angle B formed by the bending of the first end and the second end relative to the third segment satisfies the condition: 90°≤B≤120°.

9. The cutting blade device according to claim 1, characterized in that, The blade assembly further includes a plurality of second blades, wherein the first blade is disposed below all the second blades; all the second blades are spaced apart around the periphery of the first connecting post; and / or all the second blades are spaced apart along the longitudinal direction of the first connecting post.

10. A food cutting device, characterized in that, Includes the cutting blade device as described in any one of claims 1 to 9.

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