Knife assembly and food processor
By designing a detachable knife sleeve structure, the relative movement of the first knife sleeve and the second knife sleeve provide resistance, the problems of the removal of the knife and structural complexity of the mixing assembly in the cooking machine are solved, and the rapid disassembly and assembly of the blade assembly and effective anti-deletion of the blade assembly are achieved.
Patent Information
- Application Number
- CN202420565241.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The mixing components in existing cooking machines are at risk of detripping during cleaning, and the removable structure increases the complexity of the product structure and manufacturing cost.
A knife assembly is designed, wherein the knife sleeve is detachably arranged on the knife shaft, including a first knife sleeve and a second knife sleeve. The first knife sleeve is equipped with a blade and is circumferentially connected to the knife shaft. The centrifugal force of the second knife sleeve is small and the upward movement is small, so that the resistance provided by the second knife sleeve can prevent the blade assembly from being removed during work.
It realizes rapid disassembly and assembly of blade components, and effectively prevents detaching during the whipping process, reducing the complexity of product structure and manufacturing cost.
Smart Images
Figure CN222640348U_ABST
Abstract
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 detachable and washable mixing components in food processors have always been the development direction of the products. The currently adopted detachable mixing components include detachable blade disc, detachable blade set and detachable cup holder, etc. However, during the cleaning process, the water tightness requirements of the detached blade disc, blade set and cup holder are high, which increases the complexity of the product structure and the manufacturing cost. In addition, there is a risk of blade falling off in the detachable mixing components during operation. Summary of the invention
[0003] The present application provides a knife assembly and a food processor, wherein the knife assembly can be quickly disassembled and assembled and can prevent the knife from falling off.
[0004] A knife assembly, comprising:
[0005] A cutter disc assembly comprises a cutter disc and a cutter shaft rotatably disposed on the cutter disc; and
[0006] A blade assembly comprises a knife sleeve and a blade arranged in the knife sleeve, wherein the knife sleeve is detachably mounted on the knife shaft, the knife sleeve comprises a first knife sleeve and a second knife sleeve which can be kept relatively fixed along the radial and circumferential directions of the knife shaft, the first knife sleeve and the second knife sleeve can slide relatively along the axial direction of the knife shaft, the first knife sleeve is provided with the blade and is circumferentially transmission-connected to the knife shaft, the first knife sleeve comprises a lower part located below the second knife sleeve, and the lower part is opposite to the second knife sleeve in the axial direction of the knife shaft.
[0007] In this solution, the blade sleeve is detachably mounted on the blade shaft, which not only enables the blade assembly to rotate along with the blade shaft, but also enables the blade assembly to be quickly disassembled and assembled. In addition, during the whipping process, the centrifugal force of the first blade sleeve provided with the blade is large, and the upward movement is large, while the centrifugal force of the second blade sleeve without the blade is small, and the upward movement is small, so that when the first blade sleeve moves upward, the lower part is blocked by the second blade sleeve, so that the second blade sleeve can provide resistance to the lower part, preventing the blade assembly from falling off during operation.
[0008] Optionally, a gap is reserved between the lower portion and the second tool sleeve in the axial direction of the tool shaft.
[0009] Optionally, the first knife sleeve also includes an upper part connected to the lower part, the lower part is provided with the blade, the upper part and the second knife sleeve are radially opposite to each other along the knife shaft, the upper part and the second knife sleeve both extend circumferentially along the knife shaft, and the upper part and the second knife sleeve are axially slidingly matched with each other along the knife shaft. The upper part cooperates with the second knife sleeve, on the one hand, so that the two can jointly form a cylindrical structure covering the outer side of the knife shaft, and the mass distribution in the circumferential direction of the knife shaft is more balanced, and it is more stable when following the rotation of the knife shaft; on the other hand, a sliding matching structure can be provided on the upper part and the second knife sleeve to facilitate the sliding matching of the first knife sleeve and the second knife sleeve.
[0010] Optionally, a sliding portion is provided on one side surface of the upper part facing the second knife sleeve, a sliding matching portion is provided on one side surface of the second knife sleeve facing the upper part, one of the sliding portion and the sliding matching portion is provided with a sliding groove, and the other is provided with a slider, and the slider and the sliding groove are axially slidably matched with each other along the knife shaft. This solution has a simple structure, and the sliding matching structure is safe and reliable.
[0011] Optionally, the lower part is configured as a symmetrical cylindrical structure, and the lower part is sleeved on the outer side of the knife shaft. The mass distribution of the lower part of the symmetrical cylindrical structure in the circumferential direction of the knife shaft is more balanced, and it is more stable when rotating with the knife shaft 311.
[0012] Optionally, the gap is H1, 1mm≤H1≤8mm. The gap H1 does not need to be too large, as a large gap will lead to large differences in mass distribution and poor rotation stability.
[0013] Optionally, the knife sleeve is supported on the top of the knife shaft, and a gap is reserved between the blade assembly and the knife disc to avoid interference between the blade assembly and the shaft sleeve at the center of the knife disc.
[0014] Optionally, the blade shaft is provided with a radially protruding ridge, the ridge extends from top to bottom, the bottom end of the ridge is deflected relative to the top end of the ridge in the circumferential direction of the blade shaft, and the deflection direction is opposite to the rotation direction of the blade shaft, the lower part is sleeved on the blade shaft along the ridge, the lower part is provided with a groove matched with the ridge, and the ridge is matched with the groove in circumferential transmission. During the whipping or inverting process, the component force of the reaction force of the ridge on the blade sleeve is downward, and this component force can prevent the blade assembly from moving upward, thereby preventing the blade from falling off during whipping or inverting.
[0015] Optionally, the ridges extend obliquely and straightly from top to bottom. The ridges of this structure are simple in structure and more convenient to process.
[0016] Optionally, the convex ridges extend in a spiral manner from top to bottom in a curved manner. The convex ridge curvature of this structure is larger, and the anti-knife-slip effect is better.
[0017] Optionally, the inner surface of the second knife sleeve is further provided with a protrusion protruding toward the knife shaft, the protrusion extending from top to bottom in parallel with the convex ridge, and the protrusion contacts the convex ridge. This solution realizes the contact between the second knife sleeve and the knife shaft, and when the second knife sleeve moves upward, friction can be generated between the protrusion and the convex ridge, and the knife is prevented from falling off. At the same time, the contact between the protrusion and the convex ridge can also reduce the shaking amount of the knife head assembly on the knife shaft.
[0018] Optionally, the lower part includes a first part and a second part detachably connected along the axial direction of the blade shaft, the first part is located above the second part, the blade is clamped and fixed between the first part and the second part, and the second part is provided with the groove. This makes it convenient to clean the blade separately and replace the blade.
[0019] A food processor, comprising:
[0020] Host;
[0021] cup assembly; and
[0022] The knife assembly as described in any one of the above items is installed on the bottom of the cup assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a schematic diagram of a food processor shown in an exemplary embodiment of the present application;
[0024] Figure 2 is a cross-sectional view of a food processor shown in an exemplary embodiment of the present application;
[0025] Figure 3 is an exploded view of a food processor shown in an exemplary embodiment of the present application;
[0026] Figure 4 It is the assembly drawing of the knife assembly;
[0027] Figure 5 is an exploded view of the knife assembly;
[0028] Figure 6 is another exploded view of the knife assembly;
[0029] Figure 7 is a cross-sectional view of the knife assembly in a stationary state;
[0030] Figure 8 is a cross-sectional view of the knife assembly in working condition;
[0031] Fig. 9 is a schematic diagram of the sliding fit between the upper portion and the second knife sleeve;
[0032] Fig.10is a schematic diagram of a blade assembly;
[0033] Fig.11 Schematic diagram of the inner surface of the second tool sleeve. DETAILED DESCRIPTION
[0034] 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.
[0035] 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.
[0036] 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 blender 100 is shown in FIG.
[0037] The present application provides a food processor 100, comprising a main unit 10, a cup assembly 20 and a knife assembly 30. The cup assembly 20 is assembled on the top of the main unit 10, and the knife assembly 30 is installed at the bottom of the cup assembly 20 for beating the food in the cup cavity.
[0038] The cup assembly 20 includes a cup body 21 and a cup seat 22, wherein the cup seat 22 is located at the bottom of the cup body 21. The cup seat 22 includes a cup seat bucket 221 and a bottom shell 222 connected to each other, and the knife assembly 30 is installed in the cup seat bucket 221.
[0039] Please refer to Figure 4 and Figure 5 , Figure 4 It is an assembly diagram of the knife assembly 30. Figure 5 2 is an exploded view of the knife assembly 30 .
[0040] The knife assembly 30 includes a knife disc assembly 31 and a blade assembly 32, and the blade assembly 32 and the knife disc assembly 31 can be quickly disassembled and assembled. Specifically, the knife disc assembly 31 includes a knife disc 310 and a knife shaft 311 rotatably arranged on the knife disc 310. The knife disc 310 can be a knife disc 310 with a heating function. The end of the knife shaft 311 located below the knife disc 310 is used for transmission connection with the motor shaft in the host 10, and the end of the knife shaft 311 located above the knife disc 310 is transmission connected with the blade assembly 32, and the upper part of the knife disc 310 faces the cup cavity.
[0041] The blade assembly 32 includes a knife sleeve 320 and a blade 321 disposed in the knife sleeve 320. The blade 321 and the knife sleeve 320 can be connected in a detachable manner, but are not limited thereto. The blade 321 can include one or more blades, and the plurality of blades can be distributed around the circumference of the knife sleeve 320. The knife sleeve 320 is coaxial with the knife shaft 311.
[0042] Please refer to Figures 6 to 8 , Figure 6 is another exploded view of the knife assembly 30 . Figure 7 It is a cross-sectional view of the knife assembly 30 in a static state. Figure 8 It is a cross-sectional view of the knife assembly 30 in the working state.
[0043] The knife sleeve 320 is detachably mounted on the knife shaft 311, and includes a first knife sleeve 33 and a second knife sleeve 34 which can be relatively fixed along the radial and circumferential directions of the knife shaft 311, and the first knife sleeve 33 and the second knife sleeve 34 can slide relatively along the axial direction of the knife shaft. The first knife sleeve 33 is provided with a blade 321 and is used for circumferential transmission connection with the knife shaft 311, and the first knife sleeve 33 includes a lower part 332 located at the lower side of the second knife sleeve 34, and the lower part 332 is opposite to the second knife sleeve 34 in the axial direction of the knife shaft.
[0044] According to the above description, the blade sheath 320 is detachably mounted on the blade shaft 311, which not only enables the blade assembly 32 to rotate along with the blade shaft 311, but also enables the blade assembly 32 to be quickly disassembled and assembled. In addition, during the whipping process, the first blade sheath 33 provided with the blade 321 has a large centrifugal force and a large upward movement, while the second blade sheath 34 without the blade 321 has a small centrifugal force and a small upward movement, so that when the first blade sheath 33 moves upward, the lower part 332 is blocked by the second blade sheath 34 (refer to Figure 8 ), thereby providing resistance to the lower portion 332 through the gravity of the second blade sleeve 34, preventing the blade assembly 32 from falling off during operation and when pouring the cup.
[0045] In one embodiment, the first knife sleeve 33 further includes an upper portion 331 connected to the lower portion 332, wherein the lower portion 332 is provided with the blade 321. The upper portion 331 and the second knife sleeve 34 are opposite to each other along the radial direction of the knife shaft, and both extend along the circumferential direction of the knife shaft, and the upper portion 331 and the second knife sleeve 34 are slidably matched. In this arrangement, the upper portion 331 and the second knife sleeve 34 can be used to cooperate with each other. On the one hand, the two can jointly form a cylindrical structure covering the outer side of the knife shaft 311, and the mass distribution in the circumferential direction of the knife shaft is more balanced, and it is more stable when following the rotation of the knife shaft 311; on the other hand, a sliding matching structure can be set on the upper portion 331 and the second knife sleeve 34 to facilitate the sliding matching of the first knife sleeve 33 and the second knife sleeve 34.
[0046] exist Figure 6 In the embodiment shown, the upper part 331 can extend 180° along the circumference of the blade shaft and be set to a semicircular structure, and the second blade sleeve 34 can extend 180° along the circumference of the blade shaft and be set to a semicircular structure. The upper part 331 and the second blade sleeve 34 cooperate to form a circular cylindrical structure, which is jointly covered on the outside of the blade shaft 311. The shape of the upper part 331 and the second blade sleeve 34 after cooperation is the same as the shape of the blade shaft 311, which makes the overall structure of the blade assembly 32 more compact.
[0047] exist Figure 6 In the illustrated embodiment, the lower part 332 is configured as a symmetrical cylindrical structure, and the lower part 332 is sleeved on the outer side of the knife shaft 311. This configuration can make the mass distribution of the lower part 332 in the circumferential direction of the knife shaft more balanced, and it can rotate more smoothly following the knife shaft 311. The cylindrical structure can be a cylinder, a regular polygonal cylinder, etc.
[0048] In one embodiment, the gap between the second blade sleeve 34 and the lower portion 332 is H1, 1mm≤H1≤8mm. For example, the gap H1 can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm. The gap H1 does not need to be too large, which will lead to large differences in mass distribution and poor rotation stability.
[0049] In one embodiment, Figure 7 As shown, the blade sleeve 320 is supported on the top of the blade shaft 311, and a gap is reserved between the blade assembly 32 and the blade disc 310. In this way, the blade assembly 32 is separated from the blade disc 310 by a preset distance to avoid interference between the blade assembly 32 and the shaft sleeve 313 at the center of the blade disc 310.
[0050] Combination Figure 5 and Figure 7 In order to ensure the stability of the support, a hole 3200 connected to the hollow part is provided at the top of the knife sleeve 320, and the knife shaft 311 is set as a stepped shaft. The small end of the knife shaft 311 is located at the top and is provided with a shaft 3110. The shaft 3110 is inserted into the hole 3200, so that the cooperation between the shaft 3110 and the hole 3200 can be utilized to achieve centering during installation.
[0051] Please combine Figure 5 and Fig. 9 , Fig. 9 It is a schematic diagram of the upper portion 331 slidingly cooperating with the second tool sleeve 34 along the axial direction of the tool shaft.
[0052] In one embodiment, a sliding portion 3310 is provided on one side surface of the upper portion 331 facing the second knife sleeve 34, and a sliding matching portion 340 is provided on one side surface of the second knife sleeve 34 facing the upper portion 331. One of the sliding portion 3310 and the sliding matching portion 340 is provided with a sliding groove, and the other is provided with a slider, and the slider and the sliding groove are axially slidably matched along the knife shaft. This solution has a simple structure, and the sliding matching structure is safe and reliable. The sliding groove can be set as a dovetail groove or a T-slot, but is not limited thereto.
[0053] exist Fig. 9 In the illustrated embodiment, the upper portion 331 is provided with a slide groove, and the second knife sleeve 34 is provided with a slider. In order to facilitate the installation of the upper portion 331 and the second knife sleeve 34, the slide groove may be extended to the top of the upper portion 331. In other embodiments, in order to prevent the second knife sleeve 34 from being separated from the upper portion 331, the top of the slide groove may be blocked, for example, after the slider is installed in the slide groove, the top of the slide groove may be welded to death by welding, or the top of the slide groove may be blocked by a plug.
[0054] Please combine Figure 6 and Fig.10 , Fig.10 is a schematic diagram of the blade assembly.
[0055] The blade shaft 311 is provided with a radially protruding ridge 35, and the ridge 35 extends from top to bottom. The bottom end 352 of the ridge 35 is deflected from the top end 351 of the ridge 35 in the circumferential direction of the blade shaft, and the deflection direction is opposite to the rotation direction of the blade shaft 311. In other words, the bottom end 352 is deflected by a preset angle in the counterclockwise direction relative to the top end 351, and the blade shaft 311 rotates in the clockwise direction. The lower part 332 is sleeved on the blade shaft 311 along the ridge 35, and the lower part 332 is provided with a groove 36 that cooperates with the ridge 35, and the ridge 35 and the groove 36 are circumferentially driven. In this scheme, the ridge 35 cooperates with the groove 36, so that the blade shaft 311 can drive the blade sleeve 320 to rotate. During the whipping process, the component force of the reaction force of the ridge 35 on the blade sleeve 320 is downward, and this component force can prevent the blade assembly 32 from moving upward, thereby preventing the blade from falling off.
[0056] In one embodiment, the ridge 35 extends straightly from top to bottom, and the ridge 35 has a simple structure and is easier to process. In another embodiment, the ridge 35 extends spirally from top to bottom. The greater the curvature of the ridge 35, the better the anti-knife-slip effect.
[0057] In one embodiment, the convex ribs 35 are provided in plurality, and the plurality of convex ribs 35 are distributed along the circumference of the blade shaft, and the plurality of grooves 36 are provided, and the convex ribs 35 are arranged in one-to-one correspondence with the grooves 36. This allows the convex ribs 35 and the grooves 36 to cooperate at multiple locations and transmit circumferentially, which can reduce the force on each convex rib 35 and reduce the risk of the convex rib 35 breaking, and can also increase the balance of the force during circumferential transmission.
[0058] Please combine Figure 6 and Fig.11 , Fig.11 Schematic diagram of the inner surface of the second knife sleeve 34.
[0059] In one embodiment, the inner surface of the second knife sleeve 34 is further provided with a protrusion 341 protruding toward the knife shaft 311, and the protrusion 341 extends from top to bottom in parallel with the ridge 35, and the protrusion 341 contacts the ridge 35. With such a configuration, when the second knife sleeve 34 moves upward, friction can be generated between the protrusion 341 and the ridge 35, and the friction can provide resistance, which is conducive to improving the anti-knife-off effect. At the same time, the protrusion 341 contacts the ridge 35, and the shaking amount of the knife head assembly 32 when it rotates following the knife shaft 311 can also be reduced.
[0060] In one embodiment, Fig.11 As shown, the protrusion 341 extends from top to bottom in parallel with the ridge 35. Fig.11In the illustrated embodiment, the protrusion 341 extends from the top to the bottom of the second blade sleeve 34. In this way, the length and strength of the protrusion 341 are increased, and the ability of the protrusion 341 to resist deformation or damage when in contact with the ridge 35 is correspondingly increased.
[0061] Please continue to refer to Figure 6 The lower part 332 includes a first part 3321 and a second part 3322 that are detachably connected, and the connection method includes but is not limited to threaded connection. The first part 3321 is located above the second part 3322, and the blade 321 is clamped between the first part 3321 and the second part 3322, and the second part 3322 is provided with the groove. In this way, it is convenient to clean the blade 321 separately and replace the blade 321.
[0062] 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: A cutter disc assembly (31) comprises a cutter disc (310) and a cutter shaft (311) rotatably arranged on the cutter disc (310); and The blade assembly (32) comprises a knife sleeve (320) and a blade (321) arranged on the knife sleeve (320); the knife sleeve (320) is detachably sleeved on the knife shaft (311); the knife sleeve (320) comprises a first knife sleeve (33) and a second knife sleeve (34) which can be kept relatively fixed along the radial and circumferential directions of the knife shaft (311); the first knife sleeve (33) and the second knife sleeve (34) can slide relative to each other along the axial direction of the knife shaft; the first knife sleeve (33) is provided with the blade (321) and is circumferentially connected to the knife shaft (311); the first knife sleeve (33) comprises a lower part (332) located at the lower side of the second knife sleeve (34); the lower part (332) is opposite to the second knife sleeve (34) in the axial direction of the knife shaft.
2. The knife assembly according to claim 1, characterized in that A gap is reserved between the lower portion (332) and the second knife sleeve (34) in the axial direction of the knife shaft.
3. The knife assembly according to claim 1, characterized in that The first knife sleeve (33) also includes an upper part (331) connected to the lower part (332), the lower part (332) is provided with the blade (321), the upper part (331) and the second knife sleeve (34) are radially opposite to each other along the knife axis, both the upper part (331) and the second knife sleeve (34) extend circumferentially along the knife axis, and the upper part (331) and the second knife sleeve (34) are axially slidably matched along the knife axis.
4. The knife assembly according to claim 3, characterized in that A sliding portion (3310) is provided on one side surface of the upper portion (331) facing the second knife sleeve (34), and a sliding matching portion (340) is provided on one side surface of the second knife sleeve (34) facing the upper portion (331). One of the sliding portion (3310) and the sliding matching portion (340) is provided with a sliding groove, and the other is provided with a sliding block, and the sliding block and the sliding groove are axially slidably matched along the knife shaft.
5. The knife assembly according to any one of claims 1 to 4, characterized in that: The knife shaft (311) is provided with a convex ridge (35) protruding in the radial direction, and the convex ridge (35) extends from top to bottom. The bottom end (352) of the convex ridge (35) is deflected relative to the top end (351) of the convex ridge (35) in the circumferential direction of the knife shaft, and the deflection direction is opposite to the rotation direction of the knife shaft (311). The lower part (332) is sleeved on the knife shaft (311) along the convex ridge (35), and the lower part (332) is provided with a groove (36) matched with the convex ridge (35). The convex ridge (35) and the groove (36) are matched in circumferential transmission.
6. The knife assembly according to claim 5, characterized in that The inner surface of the second knife sleeve (34) is also provided with a protrusion (341) protruding toward the knife shaft (311), and the protrusion (341) extends from top to bottom in parallel with the convex ridge (35), and the protrusion (341) is in contact with the convex ridge (35).
7. The knife assembly according to claim 5, characterized in that The lower part (332) includes a first part (3321) and a second part (3322) which are detachably connected along the axial direction of the blade axis, the first part (3321) is located above the second part (3322), the blade (321) is clamped and fixed between the first part (3321) and the second part (3322), and the second part (3322) is provided with the groove (36).
8. The knife assembly according to any one of claims 1 to 4, characterized in that The lower part (332) is configured as a symmetrical cylindrical structure, and the lower part (332) is sleeved on the outer side of the knife shaft (311); and / or The knife sleeve (320) is supported on the top of the knife shaft (311), and a gap is reserved between the blade assembly (32) and the knife disc (310).
9. The knife assembly according to claim 2, characterized in that The gap is H1, 1mm≤H1≤8mm.
10. A food processor, characterized in that: include: Host (10); Cup assembly (20); and The knife assembly (30) according to any one of claims 1 to 9, wherein the knife assembly (30) is mounted on the bottom of the cup assembly (20).