Knife assembly and food processor

Abstract

The utility model relates to a knife assembly and a food processor. The cutter assembly comprises a cutter shaft and a detachable cutter head. The cutter shaft comprises a transmission part and a locking part. The cutter head comprises a cutter sleeve, a blade arranged at the bottom of the cutter sleeve and a lock catch arranged at the top of the cutter sleeve, the cutter sleeve is arranged on the cutter shaft in a sleeving mode, the cutter sleeve is provided with a transmission matching part, the cutter sleeve is provided with a first position where the cutter sleeve is installed in place when the cutter sleeve is installed on the cutter shaft and a second position where the cutter sleeve is not installed in place, and the first position and the second position are opposite. At the first position, the transmission matching part is in transmission connection with the transmission part in the circumferential direction, the lock catch is matched and locked with the locking part in the axial direction of the cutter shaft, at the second position, the lock catch is supported on the cutter shaft, and the transmission matching part is located between the locking part and the transmission matching part. According to the scheme, the risk of tool disengagement can be reduced, and the safety when the tool bit is not installed in place can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of small household appliances, and more specifically, to a knife assembly and a food processor. Background Art

[0002] The food processor has functions such as food crushing and heating, which can realize automatic cooking of food. It has high nutritional value and is popular among consumers. In addition, when the food processor heats some sticky food, the heating plate and the bottom of the blade are easy to get sticky and cannot be cleaned. Over time, bacteria will grow and odor will be produced.

[0003] In order to facilitate cleaning, the blade head can be set to a detachable structure, but there is a risk of the blade falling off when the ingredients are placed first and then the blade head is installed incorrectly. Summary of the invention

[0004] The present application provides an improved knife assembly and food processor, which can reduce the risk of the knife falling off and improve the safety when the knife head is not installed properly.

[0005] A knife assembly, comprising:

[0006] Axis; and

[0007] A detachable tool head comprises a tool sleeve, a blade arranged at the bottom of the tool sleeve and a lock buckle arranged at the top of the tool sleeve, wherein the tool sleeve is sleeved on the tool shaft, the tool sleeve is provided with a transmission matching portion, the tool sleeve is provided with a first position in which it is installed in place when installed on the tool shaft and a second position in which it is not installed in place, in the first position, the transmission matching portion is circumferentially connected to the transmission portion for transmission, the lock buckle is matched with the locking portion along the axial direction of the tool shaft for locking, and in the second position, the lock buckle is supported on the tool shaft, and the transmission matching portion is located between the locking portion and the transmission matching portion.

[0008] In this solution, the cutter head is detachably connected to the cutter shaft. When the cutter head is installed in the cutter shaft and in place, the cutter head is in the first position. At this time, the cutter sleeve and the cutter shaft can be connected in a circumferential transmission through the transmission part and the transmission matching part. The cutter sleeve can rotate with the cutter shaft, and the lock buckle is locked with the locking part of the cutter shaft along the axial direction of the cutter shaft, reducing the risk of the cutter head falling off when rotating. However, when the cutter head is installed in the cutter shaft but not in place, the cutter head is in the second position. At this time, the lock buckle is supported on the cutter shaft, and the transmission matching part is located between the locking part and the transmission part. Then the transmission part does not match the transmission matching part, and the cutter head cannot rotate with the cutter shaft, which improves the safety when the cutter head is not installed in place.

[0009] Optionally, the lock buckle is arranged in the knife sleeve, and the lock buckle includes a locking portion arranged around the knife shaft and a connecting portion connected to the locking portion, the locking portion is used to lock with the knife shaft, and the connecting portion is used to connect with the knife sleeve. In this way, the lock buckle is hidden in the knife sleeve, making the appearance of the knife assembly more concise.

[0010] Optionally, the locking portion includes a plurality of locking claws distributed along the circumference of the knife shaft, and in the first position, the plurality of locking claws are all locked in cooperation with the locking portion. The connection strength of the plurality of locking claws arranged separately is low, thereby making the elastic deformation of the locking portion large, and the locking effect with the knife shaft is better.

[0011] Optionally, the connecting portion protrudes radially along the blade shaft and extends circumferentially along the blade shaft to form an annular structure, the blade sleeve is provided with a blade sleeve hole for the blade shaft to pass through, a step surface is provided in the blade sleeve hole, the blade sleeve further comprises an inner sleeve inserted into the blade sleeve hole, and the connecting portion is clamped between the inner sleeve and the step surface. In this way, the connection area between the connecting portion and the blade sleeve is increased, the connection strength is increased, and the firmness of the connection between the blade sleeve and the lock buckle can also be increased.

[0012] Optionally, the cutter head further comprises a pressing member that can move relative to the cutter sleeve along the axial direction of the cutter shaft, the pressing member is arranged in the cutter sleeve hole, and the pressing member can move downward under the pressure to contact the locking part and release the lock from the cutter shaft. In this way, the unlocking method is simple and convenient.

[0013] Optionally, the cutter head further comprises an elastic member, which is clamped between the pressing member and the connecting portion and is used to drive the pressing member to reset after the pressing force is removed. In this way, the pressing member can be lifted by the elastic member to achieve the reset of the pressing member.

[0014] Optionally, the lock buckle further includes an annular portion arranged around the knife shaft, the annular portion is connected to the connecting portion and is located above the connecting portion, and the elastic member is sleeved on the annular portion. The annular portion can provide a guide for the compression of the elastic member, ensure the stability of the position of the elastic member, and prevent the elastic member from tilting.

[0015] Optionally, the locking portion includes an annular recess extending along the circumference of the blade shaft, and in the first position, the lock buckle is located in the locking portion. The lock buckle can be embedded in the annular recess, which can increase the difficulty of the lock buckle detaching from the blade shaft.

[0016] Optionally, the portion of the knife shaft between the locking portion and the transmission portion is configured as a cylindrical segment. This configuration ensures that the transmission matching portion and the cylindrical segment can rotate relative to each other along the circumference of the knife shaft, thereby preventing the knife sleeve from rotating with the knife shaft. Optionally, the knife sleeve includes an upper knife sleeve and a lower knife sleeve, and the blade is clamped and fixed between the upper knife sleeve and the lower knife sleeve.

[0017] A food processor, comprising:

[0018] Main machine, including motor shaft;

[0019] A cup assembly, assembled to the main unit, the cup assembly comprising a cup cavity; and

[0020] As in any of the above knife assemblies, the knife shaft of the knife assembly is connected to the motor shaft, and the knife head of the knife assembly is arranged in the cup cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of a food processor shown in an exemplary embodiment of the present application;

[0022] Figure 2 yes Figure 1 A cross-sectional view of a food processor shown in FIG.

[0023] Figure 3 yes Figure 1 An exploded view of a food processor shown in FIG.

[0024] Figure 4 It is a schematic diagram of the partial structure of the knife shaft being assembled to the cup holder;

[0025] Figure 5 It is a schematic diagram of the cutter head;

[0026] Figure 6 is a cross-sectional view of the knife assembly, wherein the knife sleeve is in a first position;

[0027] Figure 7 is a cross-sectional view of the knife assembly, wherein the knife sleeve is in a second position;

[0028] Figure 8 This is a schematic diagram of the bottom of the cutter head;

[0029] Fig. 9 It is an exploded view of the cutter head;

[0030] Fig.10 It is a cross-sectional view of the knife assembly, in which the lock is schematically shown being pressed by the pressing member. DETAILED DESCRIPTION

[0031] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application.

[0032] The terms used in this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantity restrictions, but indicate that there is at least one, and will be separately described if only "one" is referred to. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0033] Please refer to Figures 1 to 3 , Figure 1 It is a schematic diagram of a food processor 100 according to an exemplary embodiment of the present application. Figure 2 yes Figure 1 A cross-sectional view of a food processor 100 is shown in FIG. Figure 3 yes Figure 1 An exploded view of the blender 100 is shown in FIG.

[0034] The present application provides a food processor 100, including a main machine 10, a cup assembly 20 and a knife assembly 30. The cup assembly 20 is assembled on the main machine 10, and the cup assembly 20 is assembled to the main machine 10 in any manner, including but not limited to a detachable manner. The main machine 10 includes a motor shaft 11.

[0035] The cup assembly 20 includes a cup cavity 210, and the knife assembly 30 is installed at the bottom of the cup assembly 20, wherein the knife assembly 30 includes a knife shaft 31 and a knife head 32, the lower end of the knife shaft 31 is connected to the motor shaft 11, and the upper end of the knife shaft 31 is connected to the knife head 32, and the knife head 32 is arranged in the cup cavity 210. The power of the motor shaft 11 is transmitted to the knife head 32 through the knife shaft 31, and the knife head 32 is used to whip the food in the cup cavity 210.

[0036] The cup assembly 20 includes a cup body 21, a cup base 22 located at the bottom of the cup body 21, and a cup cover 23 covering the cup body 21. The blade shaft 31 is rotatably mounted on the cup base 22, and the bottom of the cup body 21 is mounted on the cup base 22. The cup cover 23 is provided with an exhaust hole 230 and an exhaust cover 231 covering the exhaust hole 230.

[0037] Please refer to Figures 4 to 8 , Figure 4 It is a schematic diagram of a partial structure in which the blade shaft 31 is installed on the cup seat 22. Figure 5 Schematic diagram of the cutter head 32. Figure 6 FIG. 4 is a cross-sectional view of the knife assembly 30 , wherein the knife head 32 is in a first position. Figure 7 FIG. 4 is a cross-sectional view of the knife assembly 30 , wherein the knife head 32 is in the second position. Figure 8 It is a schematic diagram of the bottom of the cutter head 32.

[0038] The cutter head 32 is detachably mounted on the cutter shaft 31, and the cutter head 32 includes a cutter sleeve 320, a blade 321 disposed in the cutter sleeve 320, and a lock 322. The blade 321 can be disposed at the bottom of the cutter sleeve 320, and further at the bottom of the cup cavity 210. The blade 321 can be provided with a plurality of blades, and the plurality of blades are distributed along the circumference of the cutter sleeve 320.

[0039] The knife shaft 31 is provided with a transmission part 311 and a locking part 312, and the knife sleeve 320 is provided with a transmission matching part 3200. The knife sleeve 320 is sleeved on the knife shaft 31, and the knife sleeve 320 is provided with a first position when installed on the knife shaft 31 and a second position when not installed. In the first position, the transmission matching part 3200 is circumferentially connected with the transmission part 311, and the lock buckle 322 is locked with the locking part 312 along the axial direction of the knife shaft. In the second position, the lock buckle 322 is supported on the knife shaft 31, and the transmission matching part 3200 is located between the locking part 312 and the transmission part 311.

[0040] According to the above description, the cutter head 32 is detachably connected to the cutter shaft 31. When the cutter head 32 is installed in the cutter shaft 31 and is in place, the cutter head 32 is in the first position. At this time, the cutter sleeve 320 and the cutter shaft 31 are connected in a circumferential transmission manner through the transmission part 311 and the transmission matching part 3200. The cutter sleeve 320 can rotate with the cutter shaft 31, and the lock buckle 322 is locked with the cutter shaft 31 along the axial direction of the cutter shaft, thereby reducing the risk of the cutter head 32 falling off when rotating. However, when the cutter head 32 is not installed in place after being installed in the cutter shaft 31, the cutter head 32 is in the second position. At this time, the lock buckle 322 is supported on the cutter shaft 31, and the transmission matching part 3200 is located between the locking part 312 and the transmission part 311. Then, the transmission part 311 does not match the transmission matching part 3200, and the cutter sleeve 320 is empty on the cutter shaft 31. The cutter head 32 cannot rotate with the cutter shaft 31, thereby improving the safety of the cutter head 32 when it is not installed in place.

[0041] In one embodiment, please refer to Figure 4 and Figure 8The transmission part 311 may be a plurality of ridges protruding along the radial direction of the blade shaft, and the transmission matching part 3200 may be a plurality of grooves provided on the inner surface of the hole on the blade sleeve 320 through which the blade shaft 31 passes. The plurality of ridges and the plurality of grooves are matched one by one, and power transmission can be realized along the circumference of the blade shaft. Of course, the method of realizing power transmission between the blade shaft 31 and the blade sleeve 320 is not limited to this.

[0042] In one embodiment, Figure 4 As shown, the portion of the knife shaft 31 between the locking portion 312 and the transmission portion 311 is configured as a cylindrical section 313. In this configuration, there is no protruding structure on the surface of the cylindrical section 313, so that the transmission matching portion 3200 and the cylindrical section 313 can rotate relative to each other along the circumference of the knife shaft, preventing the knife sleeve 320 from rotating with the knife shaft 31.

[0043] Please refer to Figure 6 and Fig. 9 , Fig. 9 FIG. 2 is an exploded view of the cutter head 32 .

[0044] In one embodiment, the lock buckle 322 is disposed in the knife sheath 320, and the lock buckle 322 includes a locking portion 3220 disposed around the knife shaft and a connecting portion 3221 connected to the locking portion 3220, the locking portion 3220 is used to cooperate with the locking portion 312 for locking, and the connecting portion 3221 is connected to the knife sheath 320. In this way, the lock buckle 322 is hidden in the knife sheath 320, making the appearance of the knife assembly 30 more concise.

[0045] In one embodiment, the locking portion 3220 can be clamped on the knife shaft 31, for example, the locking portion 3220 can be made of an elastic material. In this embodiment, the locking portion 3220 includes a plurality of locking claws distributed along the circumference of the knife shaft, and in the first position, the plurality of locking claws are all locked with the locking portion 312. For example, a plurality of locking claws can clamp the knife shaft 31 together. In this embodiment, the connection strength of the plurality of locking claws arranged separately is low, thereby making the elastic deformation of the locking portion 3220 large, and the locking effect with the knife shaft 31 is better.

[0046] exist Fig. 9 In the embodiment shown, the connecting portion 3221 protrudes radially along the blade shaft and extends circumferentially along the blade shaft to form a ring-shaped structure. This increases the connection area between the connecting portion 3221 and the blade sleeve 320 and increases the connection strength. Figure 6In the illustrated embodiment, the knife sleeve 320 is provided with a knife sleeve hole 3201 for the knife shaft 31 to pass through, the connecting portion 3221 is supported on the step surface 3205 in the knife sleeve 320, the knife head 32 further includes an inner sleeve 323 inserted in the knife sleeve 320, and the connecting portion 3221 is fixed between the step surface 3205 of the knife sleeve 320 and the inner sleeve 323, thereby increasing the firmness of the connection between the knife sleeve 320 and the lock buckle 322. The inner sleeve 323 can be threadedly connected to the knife sleeve 320, but is not limited thereto.

[0047] In one embodiment, Figure 6 and Fig. 9 As shown, the cutter head 32 further includes a pressing member 324 that can move relative to the cutter sleeve 320 along the axial direction of the cutter shaft. The pressing member 324 is disposed in the cutter sleeve hole 3201. The pressing member 324 can move downward under the pressure to contact the locking portion 3220 and release the lock from the cutter shaft 31. Figure 6 In the embodiment shown, the locking portion 3220 gradually contracts from top to bottom, and the small end of the locking portion 3220 clamps the blade shaft 31. The pressing member 324 is located at the large end of the locking portion 3220 and is located inside the locking portion 3220. When the pressing member 324 is pressed, the pressing member 324 moves downward, and the radial component of the force applied to the small end of the locking portion 3220 can cause the locking portion 3220 to open outward, thereby releasing the locking portion 3220 from the blade shaft 31. In this solution, the locking portion 3220 is released from the blade shaft 31 by pressing the locking portion 3220 with the pressing member 324, which is simple and convenient to operate. Fig.10 A schematic diagram showing the pressing member 324 pressing the locking portion 3220 is shown.

[0048] In one embodiment, Figure 6 and Fig. 9 As shown, the cutter head 32 further includes an elastic member 325, which is clamped between the pressing member 324 and the connecting portion 3221. After the pressing force applied to the pressing member 324 is removed, the elastic member 325 can drive the pressing member 324 to reset. In this way, the pressing member 324 can be lifted by the elastic member 325 to achieve the reset of the pressing member 324.

[0049] exist Figure 6 and Fig. 9In the illustrated embodiment, the lock buckle 322 further includes an annular portion 3222 disposed around the blade shaft 31, the annular portion 3222 is connected to the connecting portion 3221 and is located at the upper end of the connecting portion 3221, and the elastic member 325 is sleeved on the annular portion 3222, with one end abutting against the connecting portion 3221 and the other end abutting against the pressing member 324. The annular portion 3222 can provide a guide for the compression of the elastic member 325, ensure the stability of the position of the elastic member 325, and prevent the elastic member 325 from tilting. Optionally, the pressing member 324 can be configured as a compression spring.

[0050] In one embodiment, Figure 6 As shown, the locking portion 312 includes an annular recess extending along the circumference of the blade shaft, and in the first position, the lock buckle 322 is locked in the annular recess. In this way, the lock buckle 322 can be embedded in the annular recess, which can increase the difficulty of the lock buckle 322 to detach from the blade shaft 31 and improve the reliability of the locking fit.

[0051] In one embodiment, Fig. 9 As shown, the knife sleeve 320 includes an upper knife sleeve 3203 and a lower knife sleeve 3204, and the blade 321 is clamped and fixed between the upper knife sleeve 3203 and the lower knife sleeve 3204. In this way, the blade 321 is detachable, which facilitates the replacement of the blade 321. The upper knife sleeve 3203 and the lower knife sleeve 3204 can be threadedly connected, but are not limited thereto.

[0052] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A knife assembly, characterized in that: include: The knife shaft (31) is provided with a transmission part (311) and a locking part (312); and A detachable cutter head (32) comprises a cutter sleeve (320), a blade (321) arranged at the bottom of the cutter sleeve (320), and a lock buckle (322) arranged at the top of the cutter sleeve (320); the cutter sleeve (320) is sleeved on the cutter shaft (31); the cutter sleeve (320) is provided with a transmission matching portion (3200); the cutter sleeve (320) is provided with a first position in which it is installed in place when it is installed on the cutter shaft (31) and a second position in which it is not installed in place; in the first position, the transmission matching portion (3200) is circumferentially connected to the transmission portion (311); the lock buckle (322) is locked with the locking portion (312) along the axial direction of the cutter shaft; in the second position, the lock buckle (322) is supported on the cutter shaft; the transmission matching portion (3200) is located between the locking portion (312) and the transmission portion (311).

2. The knife assembly according to claim 1, characterized in that The lock buckle (322) is arranged in the knife sleeve (320), and the lock buckle (322) includes a locking part (3220) arranged around the knife shaft (31) and a connecting part (3221) connected to the locking part (3220), the locking part (3220) is used to cooperate with the locking part (312) to lock, and the connecting part (3221) is used to connect with the knife sleeve (320).

3. The knife assembly according to claim 2, characterized in that The locking portion (3220) includes a plurality of locking claws distributed along the circumference of the knife shaft. In the first position, the plurality of locking claws are all locked in cooperation with the locking portion (312).

4. The knife assembly according to claim 2, characterized in that The connecting portion (3221) protrudes radially along the knife shaft and extends circumferentially along the knife shaft to form an annular structure. The knife sleeve (320) is provided with a knife sleeve hole (3201) for the knife shaft (31) to pass through, and a step surface (3205) is provided in the knife sleeve hole (3201). The knife sleeve (320) also includes an inner sleeve (323) inserted into the knife sleeve hole (3201), and the connecting portion (3221) is clamped between the inner sleeve (323) and the step surface (3205).

5. The knife assembly according to claim 4, characterized in that The cutter head (32) further comprises a pressing member (324) which is movable relative to the cutter sleeve (320) along the axial direction of the cutter shaft. The pressing member (324) is arranged in the cutter sleeve hole (3201). The pressing member (324) can move downward under the pressure and contact the locking portion (3220) to release the lock between the cutter shaft (31).

6. The knife assembly according to claim 5, characterized in that The cutter head (32) further comprises an elastic member (325), wherein the elastic member (325) is clamped between the pressing member (324) and the connecting portion (3221), and is used for driving the pressing member (324) to reset after the pressing force is removed.

7. The knife assembly according to claim 6, characterized in that The lock buckle (322) also includes an annular portion (3222) arranged around the knife shaft, the annular portion (3222) is connected to the connecting portion (3221) and is located above the connecting portion (3221), and the elastic member (325) is sleeved on the annular portion (3222).

8. The knife assembly according to any one of claims 1 to 7, characterized in that The locking portion (312) comprises an annular recess extending along the circumference of the blade shaft, and in the first position, the locking buckle (322) is locked in the locking portion (312); and / or The portion of the knife shaft (31) located between the locking portion (312) and the transmission portion (311) is configured as a cylindrical section (313).

9. The knife assembly according to any one of claims 1 to 7, characterized in that The knife sleeve (320) comprises an upper knife sleeve (3203) and a lower knife sleeve (3204), and the blade (321) is clamped and fixed between the upper knife sleeve (3203) and the lower knife sleeve (3204).

10. A food processor, characterized in that: include: A host machine (10), comprising a motor shaft (11); A cup assembly (20) assembled on the main machine (10), wherein the cup assembly (20) comprises a cup cavity (210); and According to the knife assembly (30) as described in any one of claims 1 to 9, the knife shaft (31) of the knife assembly (30) is connected to the motor shaft (11), and the knife head (32) of the knife assembly (30) is arranged in the cup cavity (210).

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