Stirring knife assembly and food processor

Abstract

The utility model provides a stirring knife assembly and a food processor. The stirring cutter assembly comprises a smashing assembly and a stirring assembly, the smashing assembly comprises a main cutter assembly and an auxiliary cutter assembly, the main cutter assembly comprises a cutter shaft and a main cutter arranged on the cutter shaft, the auxiliary cutter assembly comprises a mounting sleeve arranged on the cutter shaft in a sleeving mode and an auxiliary cutter arranged on the mounting sleeve, and the cutter shaft comprises a vertically-through channel; the telescopic assembly is assembled in the channel, the telescopic assembly comprises a telescopic rod and an elastic piece matched with the telescopic rod, a connector is arranged at the top end of the telescopic rod, and the cutter shaft comprises a meshing part matched with the connector; the telescopic assembly has a non-working state and a working state, and when the telescopic assembly is in the non-working state, the connector is located in the channel; when the telescopic assembly is in the working state, the telescopic rod overcomes the elastic force of the elastic piece to generate displacement, and the connector is promoted to upwards stretch out of the channel. In this way, the safety risk in use can be better eradicated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of food processing, in particular to a stirring knife assembly and a food processor. BACKGROUND

[0002] With the increasing improvement of people's living standards, many different types of food processors appear on the market. The functions of the food processor mainly can include, but are not limited to, making soy milk, juicing, mincing meat, shaving ice, making coffee and / or blending mask, etc. The food processor, such as a meat grinder, includes a food container, a container cover arranged on the food container, a stirring knife assembly located in the food container, and a main machine arranged on the container cover. When the food processor works, the main machine drives the stirring knife assembly to rotate in the food container to crush the food. However, in the existing food processor, the stirring knife assembly is directly installed on the main machine without being installed in the food container. At this time, the main machine drives the stirring knife assembly to rotate after being started, which has the risk of hurting people. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a stirring knife assembly and a food processor which can better eliminate the safety risk in use.

[0004] The present application provides a stirring knife assembly. The stirring knife assembly comprises: a crushing assembly, comprising a main knife assembly and a secondary knife assembly capable of moving relative to the main knife assembly, the main knife assembly comprising a knife shaft and a main knife arranged on the knife shaft, the secondary knife assembly comprising a mounting sleeve arranged on the knife shaft and a secondary knife arranged on the mounting sleeve, the knife shaft comprising a through channel; and a telescopic assembly assembled in the through channel, the telescopic assembly comprising a telescopic rod and an elastic member matched with the telescopic rod, the telescopic rod comprising a connecting head arranged at the top end, and the knife shaft comprising an engagement part matched with the connecting head; wherein the telescopic assembly has a non-working state and a working state, when the telescopic assembly is in the non-working state, the connecting head is located in the through channel; when the telescopic assembly is in the working state, the telescopic rod generates displacement by overcoming the elastic force of the elastic member, so as to make the connecting head extend upwards out of the through channel. When the stirring knife assembly is not installed in the food container, the telescopic assembly is in the non-working state, at this time the connecting head is located in the through channel, so that the connecting head cannot engage with the output end or the motor shaft, that is, the stirring knife assembly cannot be installed on the main machine, and the main machine cannot drive the stirring knife assembly to rotate. In this way, the situation that the main machine drives the stirring knife assembly to rotate when the stirring knife assembly is not installed in the food container is avoided, and the safety risk caused by improper use is eliminated.

[0005] Furthermore, when the telescopic component is in operation, the elastic force exerted by the elastic element on the crushing component is less than or equal to the weight of the crushing component. This ensures that the crushing component is supported by the bottom wall of the container body during operation, which helps maintain stability during the process.

[0006] Furthermore, when the telescopic assembly is not in operation, the elastic force exerted by the elastic element on the telescopic rod is greater than the weight of the telescopic rod. Thus, when the stirring blade assembly is inverted, the telescopic rod cannot cause the elastic element to deform, and the connector cannot extend from the channel.

[0007] Furthermore, the maximum vertical movement distance of the telescopic rod relative to the cutter shaft is h1, and the length of the connector extending upwards out of the channel in the working state is h2. The difference between h1 and h2 is between 0 mm and 1 mm. This ensures that the connector can fully extend in the working state while preventing a large amount of food from entering the channel.

[0008] Furthermore, the cutter shaft includes a bowl-shaped cover disposed at the bottom end of the channel and a stepped portion disposed opposite to the bowl-shaped cover. The telescopic rod includes a flange movably disposed between the bowl-shaped cover and the stepped portion, and the elastic element presses downward against the flange. The telescopic rod moves up and down within the channel by the flange moving up and down between the bowl-shaped cover and the stepped portion.

[0009] Furthermore, the elastic element is a spring, an elastic rubber component, or a metal sheet. This ensures the elastic element is reliable and inexpensive.

[0010] Furthermore, one of the blade shaft and the mounting sleeve has a wavy annular guide groove along its circumference, and the other has a protrusion that mates with the guide groove. When the blade shaft rotates, the protrusion slides within the guide groove, causing the secondary blade assembly to rotate around the rotation center line of the blade shaft, while simultaneously reciprocating up and down along the blade shaft. During operation of the food processor, the protrusion slides within the guide groove, causing the secondary blade assembly to rotate around the rotation center line of the blade shaft while simultaneously reciprocating up and down along the blade shaft. Thus, during the reciprocating motion of the secondary blade assembly, the secondary blade can chop ingredients of different heights. Through the cooperation of the main blade assembly and the secondary blade assembly, the food pulverized by the food processor can be made to have a more uniform coarseness.

[0011] Furthermore, the guide groove extends in the form of a sine or cosine curve. This makes the movement of the protrusion within the guide groove smoother and reduces noise.

[0012] This application also provides a food processor. The food processor includes: a food container, including a container body and a container lid covering the container body; a main unit disposed on the container lid; and a mixing blade assembly as described above, installed in the container body.

[0013] Furthermore, the container body has a container shaft at its bottom, and the bowl-shaped shaft cap at the bottom of the blade shaft has a shaft hole that corresponds to and mates with the container shaft. The difference between the radial dimension of the shaft hole and the radial dimension of the container shaft is between 0.3 mm and 0.8 mm. This allows the container shaft and shaft hole to fit together better, resulting in a more stable placement of the stirring blade assembly within the container body. Simultaneously, the container shaft can rotate more smoothly within the shaft hole, thus making the rotation of the stirring blade assembly smoother. Attached Figure Description

[0014] Figure 1 The image shown is a cross-sectional view of one embodiment of the food processor of this application;

[0015] Figure 2 As shown Figure 1 The cross-sectional view shown shows the stirring blade assembly placed inside the container body;

[0016] Figure 3 As shown Figure 1 The cross-sectional view of the stirring blade assembly in its non-operating state is shown.

[0017] Figure 4 As shown Figure 1 The cross-sectional view of the stirring blade assembly in operation is shown.

[0018] Figure 5 As shown Figure 1 An exploded perspective view of the stirring blade assembly shown.

[0019] Figure 6 As shown Figure 2 The cross-sectional view of the main blade assembly shown;

[0020] Figure 7 As shown Figure 2 The top view of the secondary blade assembly shown. Detailed Implementation

[0021] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0022] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. The words “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0023] Please see Figures 1 to 7 The food processor 100 includes a food container 50, a main unit 60, and a blending blade assembly 70. The food container 50 includes a container body 51 and a container lid 52 covering the container body 51. A container shaft 511 is provided at the bottom of the container body 51. The food container 50 can be used to hold food to be processed, such as meat and vegetables. The food is pulverized inside the food container 50. The blending blade assembly 70 is installed inside the container body 51 and is used to blend and pulverize the food.

[0024] The main unit 60 is disposed on the container lid 52. In the illustrated embodiment, the main unit 60 includes a housing 61, a motor 62, and a reduction gearbox 63. The motor 62 is disposed within the housing 61 and includes a motor shaft 621. The reduction gearbox 63 includes a driving gear 631, a driven gear 632, and an output end 633. The driving gear 631 is connected to the motor shaft 621, the driven gear 632 meshes with the driving gear 631, and the output end 633 is connected to the stirring blade assembly 70. In another embodiment, the main unit 60 includes a housing 61 and a motor 62 disposed within the housing 61, excluding the reduction gearbox. The motor shaft 621 of the motor 62 is connected to the stirring blade assembly 70.

[0025] The mixing blade assembly 70 includes a grinding component 30 and a telescopic component 40. The grinding component 30 includes a main blade assembly 10 and a secondary blade assembly 20 that can move relative to the main blade assembly 10. The main blade assembly 10 includes a blade shaft 11 and a main blade 12 disposed on the blade shaft 11. The main blade 12 is used to grind and crush food ingredients, for example, grinding meat into minced meat, or grinding vegetables into vegetable granules or vegetable puree.

[0026] The secondary blade assembly 20 includes a mounting sleeve 21 fitted onto the blade shaft 11 and a secondary blade 22 disposed on the mounting sleeve 21. The blade shaft 11 includes a through channel 119 extending vertically. The secondary blade 22 is also used for mixing and pulverizing food ingredients.

[0027] The telescopic assembly 40 is assembled within the channel 119. The telescopic assembly 40 includes a telescopic rod 41 and an elastic element 42 that cooperates with the telescopic rod 41. The top end of the telescopic rod 41 is provided with a connector 411. The cutter shaft 11 includes a meshing part 114 that cooperates with the connector 411. The connector 411 is used to connect to the motor shaft 621 or the output end 633.

[0028] The telescopic assembly 40 has a non-working state and a working state. When the telescopic assembly 40 is in the non-working state, the elastic element 42 applies an elastic force to the telescopic rod 41, causing the connector 411 to be located inside the channel 119. When the telescopic assembly 40 is in the working state, the telescopic rod 41 overcomes the elastic force of the elastic element 42 and displaces, causing the connector 411 to extend upward out of the channel 119.

[0029] When the mixing blade assembly 70 is installed inside the food container 50, the telescopic rod 41 is supported by the container shaft 511. The gravity of the crushing component 30 acts on the elastic element 42, causing the elastic element 42 to deform. The telescopic rod 41 is displaced relative to the blade shaft 11, thereby causing the telescopic component 40 to switch from a non-working state to a working state. At this time, the connector 411 extends out from the channel 119. When the main unit 60 is set on the container cover 52, the connector 411 is connected to the motor shaft 621 or the output end 633.

[0030] When the mixing blade assembly 70 is not installed in the food container 50, the telescopic component 20 is in a non-working state. At this time, the connector 411 is located in the channel 119, so the connector 411 cannot engage with the output end 633 or the motor shaft. In other words, the mixing blade assembly 70 cannot be installed in the main unit 60, and the main unit 60 cannot drive the mixing blade assembly 70 to rotate. This avoids the situation where the main unit 60 drives the mixing blade assembly 70 to rotate when the mixing blade assembly 70 is not installed in the food container 50, thereby eliminating the safety risks caused by improper use.

[0031] When the telescopic component 40 is in operation, the elastic force exerted by the elastic element 42 on the crushing component 30 is less than or equal to the weight of the crushing component 30. This ensures that the crushing component 30 is supported by the bottom wall of the container body 51 during operation, which helps maintain stability during work.

[0032] When the telescopic assembly 40 is not in operation, the elastic force exerted by the elastic element 42 on the telescopic rod 41 is greater than the weight of the telescopic rod 41. Therefore, when the stirring blade assembly 70 is inverted, the telescopic rod 41 cannot cause the elastic element 42 to deform, and the connector 411 cannot extend from the channel 119.

[0033] The telescopic rod 41 can move up and down a maximum distance h1 relative to the cutter shaft 11, and the connector 411 extends upwards out of the channel 119 by a length h2 in the working state. The difference between h1 and h2 is between 0 mm and 1 mm. This ensures that the connector 411 can fully extend in the working state while preventing a large amount of food from entering the channel 119. In some embodiments, the difference between h1 and h2 can be 0 mm, 0.5 mm, 1 mm, or any value between any two adjacent values.

[0034] The cutter shaft 11 includes a bowl-shaped cover 118 disposed at the bottom end of the channel 119 and a stepped portion 117 disposed opposite to the bowl-shaped cover 118. The telescopic rod 41 includes a flange 419 movably disposed between the bowl-shaped cover 118 and the stepped portion 117, and the elastic member 42 presses downward against the flange 419. The telescopic rod 41 moves up and down within the channel 119 by moving the flange 419 between the bowl-shaped cover 118 and the stepped portion 117.

[0035] The elastic element 42 can be a spring, an elastic rubber component, or a metal sheet. Thus, the elastic element 42 is reliable and low-cost. In the illustrated embodiment, the elastic element 42 is a spring, but it is not limited to this.

[0036] One of the blade shaft 11 and the mounting sleeve 21 has a wavy annular guide groove 111 along its circumference, and the other has a protrusion 211 that mates with the guide groove 111. When the blade shaft 11 rotates, the protrusion 211 slides within the guide groove 111, causing the secondary blade assembly 20 to rotate around the rotation center line of the blade shaft 11, while simultaneously reciprocating up and down along the blade shaft 11. When the food processor 100 is working, the protrusion 211 slides within the guide groove 111, causing the secondary blade assembly 20 to rotate around the rotation center line of the blade shaft 11 while simultaneously reciprocating up and down along the blade shaft 11. Thus, during the reciprocating up and down movement of the secondary blade assembly 20, the secondary blade 22 can chop ingredients of different heights. Through the cooperation of the main blade assembly 10 and the secondary blade assembly 20, the food pulverized by the food processor 100 can be made to have a more uniform coarseness.

[0037] The guide groove 111 extends in the shape of a sine or cosine curve. In this way, the movement of the protrusion 211 within the guide groove 111 is smoother and the noise is lower.

[0038] The bowl-shaped cover 118 at the bottom end of the blade shaft 11 has a shaft hole 116 that corresponds to and mates with the container shaft 511. The difference between the radial dimension of the shaft hole 116 and the radial dimension of the container shaft 511 is between 0.3 mm and 0.8 mm. This allows for a better fit between the container shaft 511 and the shaft hole 116, resulting in a more stable placement of the stirring blade assembly 70 within the container body 51. Simultaneously, the container shaft 511 can rotate more smoothly within the shaft hole 116, thus enabling smoother rotation of the stirring blade assembly 70. The difference between the radial dimension of the shaft hole 116 and the radial dimension of the container shaft 511 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, or any value between any two adjacent values ​​mentioned above.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A stirring blade assembly, characterized by: It includes: The pulverizing assembly (30) includes a main cutter assembly (10) and a secondary cutter assembly (20) capable of moving relative to the main cutter assembly (10), the main cutter assembly (10) includes a cutter shaft (11) and a main cutter (12) arranged on the cutter shaft (11), and the secondary cutter assembly (20) includes a mounting sleeve (21) sleeved on the cutter shaft (11) and a secondary cutter (22) arranged on the mounting sleeve (21), and the cutter shaft (11) includes a through channel (119) extending upward and downward; and The telescopic assembly (40) is assembled in the channel (119), and the telescopic assembly (40) includes a telescopic rod (41) and an elastic member (42) matched with the telescopic rod (41), and the telescopic rod (41) is provided with a connecting head (411) at the top end, and the cutter shaft (11) includes an engagement part (114) matched with the connecting head (411); Wherein, the telescopic assembly (40) has a non-working state and a working state, when the telescopic assembly (40) is in the non-working state, the connecting head (411) is located in the channel (119); when the telescopic assembly (40) is in the working state, the telescopic rod (41) overcomes the elastic force of the elastic member (42) to generate displacement, and the connecting head (411) is urged to stretch out of the channel (119) upward.

2. The mixing blade assembly of claim 1, wherein: When the telescopic assembly (40) is in the working state, the elastic force of the elastic member (42) on the pulverizing assembly (30) is less than or equal to the gravity of the pulverizing assembly (30).

3. The mixing blade assembly of claim 1, wherein: When the telescopic assembly (40) is in the non-working state, the elastic force of the elastic member (42) on the telescopic rod (41) is greater than the gravity of the telescopic rod (41).

4. The mixing blade assembly of claim 1, wherein: The maximum distance that the telescopic rod (41) can move up and down relative to the cutter shaft (11) is h1, the length of the connecting head (411) stretching out of the channel (119) upward in the working state is h2, and the difference between h1 and h2 is between 0mm and 1mm.

5. The mixing blade assembly of claim 1, wherein: The cutter shaft (11) includes a bowl shaft cover (118) arranged at the bottom end of the channel (119) and a stepped part (117) arranged opposite to the bowl shaft cover (118), the telescopic rod (41) includes a flange (419) arranged between the bowl shaft cover (118) and the stepped part (117) and capable of moving up and down, and the elastic member (42) is pressed downward on the flange (419).

6. The mixing blade assembly of claim 1, wherein: The elastic member (42) is a spring, an elastic rubber member or a metal spring piece.

7. The mixing blade assembly of claim 1, wherein: One of the cutter shaft (11) and the mounting sleeve (21) is provided with a wavy annular guide groove (111) in the circumferential direction, and the other is provided with a convex part (211) matched with the guide groove (111); when the cutter shaft (11) rotates, the convex part (211) slides in the guide groove (111), which drives the secondary cutter assembly (20) to rotate around the center line of rotation of the cutter shaft (11), while the secondary cutter assembly (20) reciprocates up and down along the cutter shaft (11).

8. The paddle assembly of claim 7, wherein: The guide groove (111) extends in a sine curve or a cosine curve.

9. A food processor, characterized in that: It includes: The food container (50) comprises a container body (51) and a container cover (52) arranged on the container body (51); A host (60) is arranged on the container cover (52); and The stirring knife assembly (70) according to any one of claims 1 to 8 is arranged in the container body (51).

10. The food processor of claim 9, wherein: The bottom of the container body (51) is provided with a container shaft (511), and the bottom end of the bowl shaft cover (118) of the knife shaft (11) is provided with a shaft hole (116) corresponding to the container shaft (511), and the difference between the radial dimension of the shaft hole (116) and the radial dimension of the container shaft (511) is between 0.3 mm and 0.8 mm.

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