Knife assembly and cooking equipment

Abstract

The utility model relates to a knife assembly and cooking equipment. The cutter assembly comprises a cutter set which comprises a cutter holder support and a blade fixed to the cutter holder support. The cutterhead assembly comprises a cutterhead body and a driving shaft fixed to the cutterhead body, and the tool apron support is fixedly connected with the driving shaft in an inserted mode; the tool apron support comprises an upper tool apron support and a lower tool apron support, the upper tool apron support is provided with an upper positioning hole, the lower tool apron support is provided with a lower positioning hole, the driving shaft is provided with an upper positioning block and a lower positioning block in the axial direction, the upper positioning block and the upper positioning hole are positioned in a matched mode, and the lower positioning block and the lower positioning hole are positioned in a matched mode. By means of the double positioning, the central axis of the upper positioning block and the central axis of the lower positioning block coincide with the central axis of the driving shaft, after the cutter set is assembled on the driving shaft, good concentricity is achieved to improve vibration caused by the cutter set in the high-speed running process, and the vibration problem caused by eccentricity after the cutter set is assembled on the driving shaft can be well solved.

Description

Technical Field

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

[0002] In the prior art, for the convenience of cleaning a cooking machine, some existing cooking machines detachably assemble a stirring cutter head assembly at the bottom of a stirring cup. After the cooking machine is used, the stirring cutter head assembly can be detached for cleaning. However, the disassembly is inconvenient, and water easily enters the stirring cutter head assembly during cleaning and contacts electronic components, resulting in poor functions of the electronic components.

[0003] Therefore, in order to solve the above problems, a structure is designed in the prior art to only detach the stirring knife for cleaning, and the cutter head does not need to be detached, so it is not easy to let water in. However, in practical applications, it is found that since the stirring knife is detachable, there is eccentricity when the stirring knife is assembled to the cutter head, resulting in vibration, and there is a problem of relatively large vibration noise during high-speed operation, which needs improvement. Summary of the Utility Model

[0004] In order to overcome at least one of the above-mentioned defects of the prior art, according to one aspect of the present utility model, a knife assembly is provided, including:

[0005] A knife group, the knife group includes a knife seat bracket and a blade fixed to the knife seat bracket;

[0006] A cutter head assembly, the cutter head assembly includes a cutter head body and a drive shaft fixed to the cutter head body, and the knife seat bracket is inserted and fixed to the drive shaft;

[0007] The knife seat bracket includes an upper knife seat bracket and a lower knife seat bracket. The upper knife seat bracket is provided with an upper positioning hole, and the lower knife seat bracket is provided with a lower positioning hole. The drive shaft is axially provided with an upper positioning block and a lower positioning block up and down. The upper positioning block is matched and positioned with the upper positioning hole, and the lower positioning block is matched and positioned with the lower positioning hole. The central axes of the upper positioning block and the lower positioning block coincide with the central axis of the drive shaft.

[0008] In an embodiment of the present application, let the end of the drive shaft away from the cutter head body be the top end. The upper positioning block is cylindrical and arranged at the top end of the drive shaft.

[0009] In an embodiment of the present application, the lower positioning block is annular and arranged between the upper positioning block and the cutter head body. The lower positioning block is arranged on the circumferential side wall of the drive shaft on the side close to the cutter head body.

[0010] In an embodiment of the present application, the upper positioning hole and / or the lower positioning hole is a tapered positioning hole, and the tapered angle of the tapered positioning hole is in the range of 2°-10°;

[0011] Alternatively, the upper positioning hole and / or the lower positioning hole is a circular positioning hole.

[0012] In an embodiment of the present application, an upper driving hole communicating with the upper positioning hole is provided in the upper bracket of the tool holder. The upper positioning hole is arranged above the upper driving hole and extends to the top end of the upper bracket of the tool holder. The diameter of the upper positioning hole is smaller than that of the upper driving hole.

[0013] In an embodiment of the present application, a lower driving hole communicating with the lower positioning hole is provided in the lower bracket of the tool holder. The lower positioning hole is arranged below the lower driving hole and extends to the bottom end of the lower bracket of the tool holder. Let the end of the lower bracket of the tool holder facing the tool disc body be the bottom end. The diameter of the lower positioning hole is larger than that of the lower driving hole.

[0014] In an embodiment of the present application, a threaded hole communicating with the upper driving hole is provided in the upper bracket of the tool holder. The threaded hole is arranged below the upper driving hole. The diameter of the threaded hole is larger than that of the upper driving hole.

[0015] The lower bracket of the tool holder includes a threaded section with threads arranged on the circumferential outer side. The lower bracket of the tool holder is threadedly connected to the threaded hole in the upper bracket of the tool holder through the threaded section, so that the upper driving hole and the lower driving hole are butted, and the diameters of the upper driving hole and the lower driving hole are the same.

[0016] In an embodiment of the present application, a through hole is provided through the blade. The threaded section of the lower bracket of the tool holder passes through the through hole of the blade and is threadedly connected to the threaded hole in the upper bracket of the tool holder to cooperate with the upper bracket of the tool holder to fix the blade.

[0017] In an embodiment of the present application, a magnetic gasket is fixed between the lower bracket of the tool holder and the blade. A convex platform is protrudingly provided on the end surface of the tool disc body facing the tool group. The drive shaft is fixed on the convex platform. A magnet is arranged inside the convex platform. The magnet and the magnetic gasket are magnetically attracted and matched.

[0018] According to another aspect of the present application, a cooking device is provided, including the above-mentioned tool assembly.

[0019] In summary, the tool assembly and the cooking device provided by the present utility model have the following technical effects:

[0020] Through this two-fold positioning, by setting the central axes of the upper positioning block and the lower positioning block to coincide with the central axis of the drive shaft, when the tool group is assembled onto the drive shaft, it has good concentricity to improve the vibration caused during the high-speed operation of the tool group, and can well solve the vibration problem caused by eccentricity when the tool group is assembled onto the drive shaft. Description of the Drawings

[0021] Figure 1 Structural schematic diagram of the knife assembly according to an embodiment of the present utility model;

[0022] Figure 2 Exploded state schematic diagram of the knife assembly according to an embodiment of the present utility model;

[0023] Figure 3 Structural schematic diagram of the cutter head assembly in the knife assembly according to an embodiment of the present utility model;

[0024] Figure 4 Structural schematic diagram of the knife group in the knife assembly according to an embodiment of the present utility model;

[0025] Figure 5 Exploded state schematic diagram of the knife group in the knife assembly according to an embodiment of the present utility model;

[0026] Figure 6 Structural schematic diagram of the lower support of the knife seat in the knife assembly according to an embodiment of the present utility model;

[0027] Figure 7 Cross-sectional schematic diagram of the internal structure of the knife assembly according to an embodiment of the present utility model;

[0028] Figure 8 Cross-sectional schematic diagram of the exploded state of the internal structure of the knife assembly according to an embodiment of the present utility model;

[0029] Figure 9 Cross-sectional schematic diagram of the internal structure of the knife assembly according to another embodiment of the present utility model;

[0030] Accompanying drawings: 10 - knife group, 101 - lower support of the knife seat, 1011 - lower positioning hole, 1012 - upper driving hole, 102 - blade, 1021 - through hole, 103 - upper support of the knife seat, 1031 - upper positioning hole, 1032 - lower driving hole, 104 - magnetic gasket, 20 - cutter head assembly, 201 - cutter head body, 2011 - boss, 202 - magnet, 204 - driving shaft, 2041 - upper positioning block, 2042 - lower positioning block, 2043 - edge. Detailed implementation manners

[0031] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0032] In the description of the present utility model, 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 drawings. It is only for the convenience of describing the present utility model 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 utility model.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0034] An embodiment of the present utility model discloses a knife assembly, which can be specifically referred to Figures 1-9 , and this knife assembly specifically includes a knife group 10. The knife group 10 includes a knife seat bracket and a blade 102 fixed to the knife seat bracket.

[0035] This knife assembly also specifically includes a cutter head assembly 20. The cutter head assembly 20 includes a cutter head body and a drive shaft 204 fixed to the cutter head body. The knife seat bracket is inserted and fixed to the drive shaft 204. The knife seat bracket includes an upper knife seat bracket 103 and a lower knife seat bracket 101. The upper knife seat bracket 103 is provided with an upper positioning hole 1031, and the lower knife seat bracket 101 is provided with a lower positioning hole 1011. The drive shaft 204 is axially provided with an upper positioning block 2041 and a lower positioning block 2042. The upper positioning block 2041 is matched and positioned with the upper positioning hole 1031, and the lower positioning block 2042 is matched and positioned with the lower positioning hole 1011. The central axes of the upper positioning block 2041 and the lower positioning block 2042 coincide with the central axis of the drive shaft 204.

[0036] In view of the problem that the existing stirring knife vibrates due to eccentricity when assembled to the cutter head, resulting in a relatively large vibration noise during high-speed operation, this knife assembly is improved. The specific improvement points are:

[0037] In this tool assembly, there are two levels of positioning. The first positioning is between the upper positioning hole 1031 of the upper support 103 of the tool holder and the upper positioning block 2041 of the drive shaft 204, and the second positioning is between the lower positioning hole 1011 of the lower support 101 of the tool holder and the lower positioning block 2042 of the drive shaft 204. Through these two levels of positioning, by setting the central axes of the upper positioning block 2041 and the lower positioning block 2042 to coincide with the central axis of the drive shaft 204, when the tool group 10 is assembled onto the drive shaft 204, it has better concentricity to improve the vibration caused during the high-speed operation of the tool group 10, and can well solve the vibration problem caused by eccentricity when the tool group 10 is assembled onto the drive shaft 204.

[0038] In one embodiment, the end of the drive shaft 204 away from the tool disc body is set as the top end, and the upper positioning block 2041 is cylindrical and arranged at the top end of the drive shaft 204. In the illustrated embodiment, the upper positioning block 2041 is arranged at the top end of the drive shaft 204. Since in the actual machining process, the drive shaft 204 is usually machined by a lathe, in order to better ensure sufficient concentricity with the drive shaft 204, the upper positioning block 2041 is also machined into a circular shape by a lathe; and since the upper positioning block 2041 is specifically at the end of the drive shaft 204 away from the tool disc body, it can be specifically cylindrical.

[0039] In one embodiment, the lower positioning block 2042 is annular and arranged between the upper positioning block 2041 and the tool disc body, and the lower positioning block 2042 is arranged on the circumferential side wall of the drive shaft 204 on the side close to the tool disc body. Since in the actual machining process, the drive shaft 204 is usually machined by a lathe, in order to better ensure sufficient concentricity with the drive shaft 204, the lower positioning block 2042 is also machined into a circular shape by a lathe; and since the lower positioning block 2042 is specifically arranged on the circumferential side wall of the drive shaft 204 on the side close to the tool disc body, it will be machined into an annular structure during processing.

[0040] In one embodiment, the upper positioning hole 1031 and / or the lower positioning hole 1011 is a conical positioning hole, and the conical angle of the conical positioning hole is in the range of 2° - 10°. It should be noted that the specific shape of the conical positioning hole is that in the axial direction of the drive shaft 204, the diameter of the conical positioning hole increases from top to bottom to form a conical structure. And the shape of the upper positioning block 2041 will also match the conical shape of the upper positioning hole 1031, and the shape of the lower positioning block 2042 will also match the conical shape of the lower positioning hole 1011. After the upper positioning block 2041 abuts against the upper positioning hole 1031 and the lower positioning block 2042 abuts against the lower positioning hole 1011, it can be known that the two levels of positioning are in place; at the same time, the assembly will be smoother.

[0041] Of course, in other embodiments, the upper positioning hole 1031 and / or the lower positioning hole 1011 may be circular positioning holes. With such a setting, the structure is simple, facilitating manufacturing and production, and reducing the manufacturing difficulty.

[0042] In one embodiment, an upper driving hole 1012 communicating with the upper positioning hole 1031 is provided in the upper bracket 103 of the tool holder. The upper positioning hole 1031 is arranged above the upper driving hole 1012 and extends to the top end of the upper bracket 103 of the tool holder. The diameter of the upper positioning hole 1031 is smaller than that of the upper driving hole 1012. It should be noted that during assembly, the driving shaft 204 will be assembled into the upper driving hole 1012 of the upper bracket 103 of the tool holder. At the same time, the upper positioning block 2041 at the top end of the driving shaft 204 will be positioned with the upper positioning hole 1031. To better observe the positioning situation, the diameter of the upper positioning hole 1031 is smaller than that of the upper driving hole 1012. Therefore, the diameter of the cylindrical upper positioning block 2041 is also smaller than that of the driving shaft 204. Thus, when the upper positioning block 2041 and the upper positioning hole 1031 are positioned in place, the upper positioning block 2041 will extend out of the upper positioning hole 1031 to facilitate observing whether the assembly is positioned in place.

[0043] In one embodiment, a lower driving hole 1032 communicating with the lower positioning hole 1011 is provided in the lower bracket 101 of the tool holder. The lower positioning hole 1011 is arranged below the lower driving hole 1032 and extends to the bottom end of the lower bracket 101 of the tool holder. Let the end of the lower bracket 101 of the tool holder facing the tool disc body be the bottom end. The diameter of the lower positioning hole 1011 is larger than that of the lower driving hole 1032. It should be noted that during assembly, the driving shaft 204 will be assembled into the lower driving hole 1032 of the lower bracket 101 of the tool holder. At the same time, the lower positioning block 2042 at the top end of the driving shaft 204 will be positioned with the lower positioning hole 1011. For better positioning, the diameter of the lower positioning hole 1011 is larger than that of the lower driving hole 1032. Therefore, the diameter of the annular lower positioning block 2042 is also larger than that of the driving shaft 204. A limiting step structure can be formed between the lower positioning hole 1011 and the lower driving hole 1032. When the lower positioning block 2042 and the lower positioning hole 1011 are positioned in place, the lower positioning block 2042 will abut against the inner top wall of the lower positioning hole 1011, indicating that the two are positioned in place.

[0044] In one embodiment, a threaded hole communicating with the upper driving hole 1012 is provided in the upper bracket 103 of the tool holder. The threaded hole is arranged below the upper driving hole 1012, and the diameter of the threaded hole is larger than that of the upper driving hole 1012. The lower bracket 101 of the tool holder includes a threaded section with threads arranged on the circumferential outer side. The lower bracket 101 of the tool holder is threadedly connected to the threaded hole in the upper bracket 103 of the tool holder through the threaded section, so that the upper driving hole 1012 and the lower driving hole 1032 are butted, and the diameters of the upper driving hole 1012 and the lower driving hole 1032 are the same.

[0045] The upper support 103 and the lower support 101 of the knife seat are connected by threads to realize the detachable function, the purpose is to achieve modular production and reduce maintenance costs; at the same time, it is also convenient to assemble the blade 102. In addition, after the upper support 103 and the lower support 101 of the knife seat are threadedly assembled, the upper drive hole 1012 and the lower drive hole 1032 are connected together to form a drive hole used in conjunction with the drive shaft 204, so as to be driven by the drive shaft 204.

[0046] Specifically, the outer side of the driving shaft 204 is provided with an edge 2043 in the circumferential direction, and the driving hole is provided with an edge corresponding to the edge 2043 to drive the knife group 10 to rotate; the driving shaft 204 is provided with multiple edges 2043 extending in the up-down direction, and the multiple edges 2043 are deflected in the circumferential direction of the driving shaft 204, and the deflection direction of the multiple edges 2043 from top to bottom is opposite to the rotation direction of the knife group 10, and the multiple edges and corners extending in the up-down direction in the driving hole. Therefore, the edge 2043 abuts against the edge, and the abutting force generated by the edge 2043 on the edge has a downward component force, that is, the edge 2043 deflected in the circumferential direction has a downward limiting effect on the knife group 10, so that the knife group 10 cannot be axially separated from the driving shaft 204 upward during high-speed rotation.

[0047] In one embodiment, a through hole 1021 is provided through the blade 102, and a threaded section of the lower support 101 of the knife seat passes through the through hole 1021 of the blade 102 and is threadedly connected to the threaded hole of the upper support 103 of the knife seat, so as to cooperate with the upper support 103 of the knife seat to fix the blade 102. Since the blade 102 needs to be fixed between the upper support 103 of the knife seat and the lower support 101 of the knife seat, in order to avoid interference and improve the stability of the structure, a through hole 1021 is specifically provided on the blade 102, and a threaded section of the lower support 101 of the knife seat passes through the through hole 1021 of the blade 102, and then is connected to the threaded hole of the upper support 103 of the knife seat, and the upper support 103 of the knife seat and the lower support 101 of the knife seat are used to clamp the blade 102, so as to achieve the fixation of the blade 102.

[0048] See also Figure 9 In one embodiment, a magnetic gasket 104 is fixed between the lower support 101 of the knife seat and the blade 102, a boss 2011 is provided on the end surface of the knife disc body facing the knife group 10, a drive shaft 204 is fixed on the boss 2011, a magnet 202 is provided inside the boss 2011, and the magnet 202 and the magnetic gasket 104 are magnetically matched. In this configuration, in addition to the insertion and fixation of the knife seat support and the drive shaft 204, an additional magnetic fixation is also provided, and the suction force between the magnet 202 and the magnetic gasket 104 is used to maintain the suction between the knife group 10 and the knife disc body, so as to prevent the blade 102 from falling off when running at high speed, thereby improving safety.

[0049] Specifically, in order to achieve better magnetic attraction, the magnetic gasket 104 can be made of martensitic stainless iron material. For example, stainless steels starting with 4, such as stainless steel 409, stainless steel 410, stainless steel 430, or stainless steel 444, etc., have strong magnetism and anti-rust properties.

[0050] The embodiment of the present utility model also discloses a cooking device, including the above-mentioned knife assembly. It can be seen that there are two-fold positioning in the knife assembly of this cooking device. The position of the first positioning is between the upper positioning hole 1031 of the upper support 103 of the knife holder and the upper positioning block 2041 of the drive shaft 204, and the position of the second positioning is between the lower positioning hole 1011 of the lower support 101 of the knife holder and the lower positioning block 2042 of the drive shaft 204. Through this two-fold positioning, by setting the central axes of the upper positioning block 2041 and the lower positioning block 2042 to coincide with the central axis of the drive shaft 204, when the knife group 10 is assembled onto the drive shaft 204, it has better concentricity to improve the vibration caused during the high-speed operation of the knife group 10, and can well solve the vibration problem caused by eccentricity when the knife group 10 is assembled onto the drive shaft 204.

[0051] In one optional embodiment, this cooking device can be a wall breaker, a soymilk machine, or a juice machine.

[0052] The technical means disclosed in the solution of the present utility model are not limited to the technical means 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 in this technical field, 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 knife assembly, characterized in that: include: A knife assembly (10), the knife assembly (10) comprising a knife seat support and a blade (102) fixed to the knife seat support; A cutter disc assembly (20), the cutter disc assembly (20) comprising a cutter disc body and a drive shaft (204) fixed to the cutter disc body, the cutter seat bracket being plugged and fixed to the drive shaft (204); The tool holder bracket comprises a tool holder upper bracket (103) and a tool holder lower bracket (101); the tool holder upper bracket (103) is provided with an upper positioning hole (1031); the tool holder lower bracket (101) is provided with a lower positioning hole (1011); the drive shaft (204) is provided with an upper positioning block (2041) and a lower positioning block (2042) axially up and down; the upper positioning block (2041) is matched with the upper positioning hole (1031) for positioning; the lower positioning block (2042) is matched with the lower positioning hole (1011) for positioning; the central axes of the upper positioning block (2041) and the lower positioning block (2042) are arranged to coincide with the central axis of the drive shaft (204).

2. A knife assembly according to claim 1, characterized in that The end of the driving shaft (204) away from the cutter disc body is the top end, and the upper positioning block (2041) is cylindrical and is arranged at the top end of the driving shaft (204).

3. A knife assembly according to claim 1, characterized in that: The lower positioning block (2042) is annular and is arranged between the upper positioning block (2041) and the cutter disc body; the lower positioning block (2042) is arranged on the circumferential side wall of the drive shaft (204) on a side close to the cutter disc body.

4. A knife assembly according to any one of claims 1 to 3, characterized in that: The upper positioning hole (1031) and / or the lower positioning hole (1011) are conical positioning holes, and the conical angle of the conical positioning hole is within the range of 2°-10°; Alternatively, the upper positioning hole (1031) and / or the lower positioning hole (1011) are circular positioning holes.

5. A knife assembly according to claim 2, characterized in that: An upper driving hole (1012) connected to the upper positioning hole (1031) is arranged in the knife seat upper bracket (103); the upper positioning hole (1031) is arranged above the upper driving hole (1012) and extends to the top of the knife seat upper bracket (103); the diameter of the upper positioning hole (1031) is smaller than the diameter of the upper driving hole (1012).

6. A knife assembly according to claim 5, characterized in that: A lower drive hole (1032) connected to the lower positioning hole (1011) is provided in the lower support bracket (101) of the knife seat. The lower positioning hole (1011) is provided below the lower driving hole (1032) and extends to the bottom end of the lower support bracket (101) of the knife seat. The end of the lower support bracket (101) of the knife seat facing the knife disc body is assumed to be the bottom end. The diameter of the lower positioning hole (1011) is greater than the diameter of the lower driving hole (1032).

7. A knife assembly according to claim 6, characterized in that: A threaded hole connected to the upper drive hole (1012) is arranged in the upper support (103) of the tool holder, the threaded hole is arranged below the upper drive hole (1012), and the diameter of the threaded hole is larger than the diameter of the upper drive hole (1012); The lower support (101) of the tool holder includes a threaded section with threads arranged on the circumferential outer side, and the lower support (101) of the tool holder is threadedly connected to the threaded hole of the upper support (103) of the tool holder through the threaded section, so that the upper drive hole (1012) and the lower drive hole (1032) are connected, and the diameters of the upper drive hole (1012) and the lower drive hole (1032) are the same.

8. A knife assembly according to claim 7, characterized in that: The blade (102) is penetrated by a through hole (1021), and the threaded section of the lower support (101) of the blade seat passes through the through hole (1021) of the blade (102) and is threadedly connected to the threaded hole of the upper support (103) of the blade seat to cooperate with the upper support (103) of the blade seat to fix the blade (102).

9. A knife assembly according to any one of claims 1-3, 5-8, characterized in that: A magnetic gasket (104) is fixed between the lower support (101) of the knife seat and the blade (102); a boss (2011) is provided on the end surface of the knife disc body protruding toward the knife assembly (10); the drive shaft (204) is fixed on the boss (2011); a magnet (202) is provided inside the boss (2011); and the magnet (202) and the magnetic gasket (104) are magnetically matched.

10. A cooking device, characterized in that: The utility model comprises a knife assembly according to any one of claims 1-9.

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