Shaft assembly and food processor

Abstract

This application provides a rotating shaft assembly and a food processor. The rotating shaft assembly includes: a bushing with a plurality of sets of teeth arranged circumferentially on its inner wall, each set of teeth including a first tooth and a second tooth; and a rotating shaft that cooperates with the bushing. The rotating shaft includes a plurality of shaft bodies arranged circumferentially and a first protrusion disposed on the shaft bodies. The first protrusion meshes with the first tooth and the second tooth. The radial height of the first tooth is greater than the radial height of the second tooth. When the rotating shaft rotates in a first direction, the first protrusion is subjected to a force from the first tooth, causing the shaft body to elastically deform radially. When the rotating shaft rotates in a second direction, the first protrusion is subjected to a force from the second tooth, causing the shaft body to elastically deform radially. Thus, the rotating shaft assembly is better suited to specific application scenarios and has better stability.

Description

Technical Field

[0001] This application relates to the field of food processing, and more particularly to a rotating assembly and a food processor. Background Technology

[0002] With the continuous improvement of people's living standards, many different types of food processors have appeared on the market. The functions of food processors mainly include, but are not limited to, making soy milk, juicing, rice paste, mincing meat, shaved ice, making coffee, and / or preparing face masks. Food processors can include machines that crush and blend food, such as soy milk makers, blenders, or high-speed blenders. Frame-type food processors include a base, a blending cup assembly, and a lid. The lid is rotatably mounted to the base via a rotating shaft assembly; however, existing rotating shaft assemblies have poor stability. Utility Model Content

[0003] This application provides a spindle assembly and a food processor, wherein the spindle assembly has good stability during use.

[0004] This application provides a rotating shaft assembly. The rotating shaft assembly includes: a bushing with a plurality of sets of teeth arranged circumferentially on its inner wall, each set of teeth including a first tooth and a second tooth; and a rotating shaft cooperating with the bushing. The rotating shaft includes a plurality of shaft bodies arranged circumferentially and a first protrusion disposed on the shaft bodies. The first protrusion meshes with the first teeth and the second teeth. The radial height of the first teeth is greater than the radial height of the second teeth. When the rotating shaft rotates in a first direction, the first protrusion is subjected to a force from the first teeth, causing the shaft bodies to undergo elastic deformation in the radial direction. When the rotating shaft rotates in a second direction, the first protrusion is subjected to a force from the second teeth, causing the shaft bodies to undergo elastic deformation in the radial direction. Because the first protrusion meshes with the first and second teeth, and the radial height of the first teeth is greater than the radial height of the second teeth, the resistance encountered when the rotating shaft rotates in the first direction is greater than the resistance encountered when the rotating shaft rotates in the second direction. Therefore, the rotating shaft assembly is better suited to specific application scenarios and has better stability.

[0005] Furthermore, the rotating shaft includes a second protrusion disposed on the shaft body, the second protrusion engaging with the first tooth, the first protrusion simultaneously abutting against both the first tooth and the second tooth, and the second protrusion abutting against the first tooth. This makes the fit between the rotating shaft and the bushing more stable.

[0006] Furthermore, each set of teeth includes a third tooth, with the first tooth located between the second and third teeth. The second protrusion meshes with the third and first teeth. When the shaft rotates in the first direction, the force exerted on the second protrusion by the third tooth and the force exerted on the first protrusion by the first tooth together cause the shaft to undergo elastic deformation in the radial direction. Thus, when the shaft rotates, the forces acting on the first and second protrusions act together on the shaft, allowing the shaft to undergo more stable elastic deformation in the radial direction and preventing it from tilting.

[0007] Furthermore, the radial height of the third tooth is less than the radial height of the second tooth. Thus, when the shaft rotates along the first or second direction, the force exerted by the third tooth on the first protrusion and the force exerted on the second protrusion are relatively small. This results in resistance to the shaft's rotation at the moment of initial rotation along the first or second direction, but smoother rotation throughout the process.

[0008] Furthermore, there is a gap between two adjacent shafts. This gives the shafts better elasticity. Two adjacent shafts are connected together. This gives the shaft higher strength.

[0009] Furthermore, the rotating shaft includes a shaft hole formed by a plurality of shaft bodies, and the bushing includes a shaft center extending into the shaft hole. This makes the fit between the rotating shaft and the shaft bodies more stable and reliable.

[0010] Furthermore, the bushing includes a notch at its end, and the rotating shaft includes a boss located within the notch, which can move within the notch when the rotating shaft rotates. The engagement of the boss and the notch limits the angle of rotation of the rotating shaft 60.

[0011] This application provides a food processor. The food processor includes: a base, comprising a base and a support extending upward from the base; the support is provided with a bushing, and the inner wall of the bushing has a plurality of sets of teeth arranged circumferentially, each set of teeth including a first tooth and a second tooth; a mixing cup assembly assembled on the base, the mixing cup assembly including a mixing cup, a heating plate, and a mixing blade assembly, the heating plate and the mixing blade assembly being disposed at the bottom of the mixing cup; and a lid rotatably assembled on the support, the lid covering the mixing cup assembly, the lid having a rotating shaft cooperating with the bushing, the rotating shaft including a plurality of shafts arranged circumferentially and a first protrusion disposed on the shafts, the first protrusion engaging with the first tooth and the second tooth; wherein, the radial height of the first tooth is greater than the radial height of the second tooth; when the lid is opened from a closed state, the first protrusion is subjected to the force of the first tooth, causing the shaft to elastically deform radially; when the lid is closed from an open state, the first protrusion is subjected to the force of the second tooth, causing the shaft to elastically deform radially. When the lid is opened from the closed position, the first protrusion must first pass the first tooth. Since the radial height of the first tooth is greater than that of the second tooth, the shaft needs to undergo a larger elastic deformation in the radial direction. Obviously, the first tooth needs to apply a large force to the first protrusion. In other words, a large force needs to be applied to the lid to cause a large elastic deformation in the shaft in order to open the lid. In this way, during the operation of the food processor, it can effectively prevent the lid from opening due to various accidental operations. Furthermore, for the same reasons, the lid is less prone to vibration during the operation of the food processor, resulting in better stability. When the lid is switched to the open position, the first protrusion simultaneously abuts against the first and second teeth, allowing the lid to remain stably in the open position and preventing it from falling off. In addition, the cooperation between the rotating shaft and the bushing enables the lid to rotate while maintaining stability in both the closed and open positions. Its structure is simple, easy to assemble, and low in cost.

[0012] Furthermore, there is a gap between two adjacent shafts. This provides better elasticity to the shafts, allowing the cover to rotate more smoothly. Two adjacent shafts are connected together. This provides higher strength to the shaft and better stability of the cover during use.

[0013] Furthermore, the pivot includes a second protrusion disposed on the shaft body. The second protrusion engages with the first tooth. When the cover is in the open state, the first protrusion simultaneously abuts against both the first tooth and the second tooth, and the second protrusion abuts against the first tooth. In this way, the cover can be held more stably in the open state.

[0014] Furthermore, the radial height of the second protrusion is less than that of the first protrusion. This ensures the hood remains stably open, and when closing from the open, the first protrusion passes the second tooth while the second protrusion passes the first tooth, allowing the hood to disengage and rotate downwards without requiring excessive force, resulting in a better user experience.

[0015] Furthermore, each set of teeth includes a third tooth, with the first tooth located between the second and third teeth. The second protrusion engages with both the third and first teeth. When the cover is opened from the closed state, the force exerted on the second protrusion by the third tooth and the force exerted on the first protrusion by the second tooth together cause the shaft to undergo elastic deformation in the radial direction. Thus, when the cover is opened, the forces exerted on the first and second protrusions act together on the shaft, allowing the shaft to undergo more stable elastic deformation in the radial direction and preventing it from tilting.

[0016] Furthermore, the radial height of the third tooth is less than the radial height of the second tooth. Thus, during the process of switching the hood from a closed state to an open state, or vice versa, the force exerted by the third tooth on the first protrusion and the force exerted on the second protrusion are relatively small. This results in resistance at the moment the hood closes and opens, but allows for smooth state switching during the closing and opening processes.

[0017] Furthermore, the rotating shaft includes a shaft hole formed by a plurality of the shaft bodies, and the bushing includes a shaft center extending into the shaft hole. The engagement of the shaft center with the rotating shaft allows for better support of the cover in the open position.

[0018] Furthermore, the shaft has a stepped portion, the rotating shaft has a limiting portion that abuts against the stepped portion, and there is a gap between several of the shaft bodies and the bottom wall of the bushing. By setting the gap, interference between the shaft body and the bottom wall of the bushing is avoided when the rotating shaft rotates, thus preventing it from affecting the feel. In this way, the cover can be opened or closed more smoothly.

[0019] Furthermore, a clearance space is provided between several of the shafts and the axis, and the clearance space is not less than the amount of elastic deformation generated radially by the shaft during rotation. In this way, by providing the clearance space, sufficient space is provided for the elastic deformation generated radially by the shaft during rotation.

[0020] Furthermore, the bushing includes a notch at its end, and the rotating shaft includes a boss located within the notch. The boss is confined within the notch, and when the rotating shaft rotates, the boss can move within the notch. The engagement of the boss and the notch limits the range of angles the lid can rotate from a closed state to an open state. Furthermore, the engagement of the boss and the notch more stably confines the lid to the open state, preventing it from tipping over backwards towards the food processor due to an excessively large opening angle.

[0021] Furthermore, the angle at which the boss rotates within the notch ranges from 55 degrees to 90 degrees. This allows the mixing cup assembly to be easily removed when the lid is open, without interfering with the lid, and prevents the lid from tipping over towards the back of the blender, making it safer to use.

[0022] Furthermore, the support base has a groove, and the bushing has a protrusion that engages and is fixed to the groove. The engagement of the protrusion and the groove allows the bushing to be easily assembled onto the support base.

[0023] Furthermore, the cover is provided with mounting holes, and the rotating shaft is provided with mounting feet that are fixedly engaged with the mounting holes. Through the engagement of the mounting feet and the mounting holes, the rotating shaft can be easily assembled onto the support base.

[0024] Furthermore, a control component is housed within the lid, a power supply component is housed within the support base, and a motor is located within the base or at the bottom of the mixing cup. Because the control component is housed within the lid and the power supply component within the support base, the space within both the lid and the support base can be utilized to accommodate the control component and the power supply component, avoiding stacking them within the base. This reduces the height of the base, thereby effectively reducing the overall height of the blender, making it more compact and space-efficient. Furthermore, the lower overall height of the blender reduces vibration during operation. Additionally, this arrangement of the control and power components ensures a greater distance between them, preventing electromagnetic interference. Attached Figure Description

[0025] Figure 1 The image shown is a three-dimensional schematic diagram of the food processor of this application, with the lid in the open position;

[0026] Figure 2 As shown Figure 1 Another 3D diagram of the food processor shown, with the lid removed;

[0027] Figure 3 As shown Figure 2 A three-dimensional schematic diagram of the bushing and the rotating shaft shown.

[0028] Figure 4 As shown Figure 3 A three-dimensional schematic diagram showing the bushing and shaft assembled together;

[0029] Figure 5 As shown Figure 3 The cross-sectional view of the bushing and shaft assembled together is shown.

[0030] Figure 6 As shown Figure 1 The cross-sectional view of the food processor shown indicates that the lid is closed.

[0031] Figure 7 As shown Figure 1 Another cross-sectional view of the food processor shown, with the lid closed;

[0032] Figure 8 As shown Figure 7 A cross-sectional view showing the fit between the bushing and the shaft.

[0033] Figure 9 As shown Figure 1 Another cross-sectional view of the food processor shown, with the lid in the process of opening;

[0034] Figure 10 As shown Figure 9 A cross-sectional view showing the fit between the bushing and the shaft.

[0035] Figure 11 As shown Figure 1 Another cross-sectional view of the food processor shown, with the lid in the process of opening;

[0036] Figure 12 As shown Figure 11 A cross-sectional view showing the fit between the bushing and the shaft.

[0037] Figure 13 As shown Figure 1 Another cross-sectional view of the food processor is shown, with the lid open. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] Please see Figure 3 , Figure 4 and Figure 8 This application provides a rotating shaft assembly, which includes a bushing 50 and a rotating shaft 60. The inner wall of the bushing 50 has a plurality of sets of teeth arranged circumferentially, each set of teeth including a first tooth 51 and a second tooth 52. The rotating shaft 60 cooperates with the bushing 50, and the rotating shaft 60 includes a plurality of shaft bodies 61 arranged circumferentially and a first protrusion 62 disposed on the shaft bodies 61. The first protrusion 62 meshes with the first tooth 51 and the second tooth 52. The radial height of the first tooth 51 is greater than the radial height of the second tooth 52. When the rotating shaft 60 rotates in a first direction, the first protrusion 62 is subjected to a force from the first tooth 51, causing the shaft body 61 to undergo elastic deformation in the radial direction. When the rotating shaft 60 rotates in a second direction, the first protrusion 62 is subjected to a force from the second tooth 52, causing the shaft body 61 to undergo elastic deformation in the radial direction. The first and second directions are opposite. Since the first protrusion 62 meshes with the first tooth 51 and the second tooth 52, and the radial height of the first tooth 51 is greater than the radial height of the second tooth 52, the resistance encountered when the shaft 60 rotates in the first direction is greater than the resistance encountered when the shaft 60 rotates in the second direction. As a result, the shaft assembly can be better suited to specific application scenarios and has better stability during use.

[0041] The rotating shaft 60 includes a second protrusion 63 disposed on the shaft body 61. The second protrusion 63 engages with the first tooth 51. The first protrusion 62 simultaneously abuts against both the first tooth 51 and the second tooth 52, and the second protrusion 63 abuts against the first tooth 51. In this way, the fit between the rotating shaft 60 and the bushing 50 is more stable.

[0042] Each set of teeth includes a third tooth 53, with the first tooth 51 located between the second tooth 52 and the third tooth 53. The second protrusion 63 meshes with the third tooth 53 and the first tooth 51. When the shaft 60 rotates in the first direction, the force exerted on the second protrusion 63 by the third tooth 53 and the force exerted on the first protrusion 62 by the first tooth 51 together cause the shaft 61 to undergo elastic deformation in the radial direction. Thus, when the shaft 60 rotates in the first direction, the forces exerted on the first protrusion 62 and the second protrusion 63 together act on the shaft 61, allowing the shaft 61 to undergo elastic deformation in the radial direction more smoothly and preventing it from tilting.

[0043] In one embodiment, the radial height of the third tooth 53 is less than the radial height of the second tooth 52. Thus, when the shaft 60 rotates along the first or second direction, the force exerted by the third tooth 53 on the first protrusion 62 and the force exerted on the second protrusion 63 are relatively small. This results in the shaft 60 experiencing resistance at the moment of rotation along the first or second direction, but rotating more smoothly during the rotation process.

[0044] In one embodiment, there is a gap between two adjacent shafts 61. This provides better elasticity to the shafts 61. In another embodiment, two adjacent shafts 61 are connected together. This provides higher strength to the shaft 60.

[0045] The rotating shaft 60 includes a shaft hole 65 formed by a plurality of shaft bodies 61, and the bushing 50 includes a shaft core 55 extending into the shaft hole 65. Thus, the fit between the rotating shaft 60 and the shaft bodies 50 is more stable and reliable.

[0046] The bushing 50 includes a notch 56 at its end, and the rotating shaft 60 includes a boss 66 located within the notch 56. When the rotating shaft 60 rotates, the boss 66 can move within the notch 56. The engagement of the boss 66 and the notch 56 limits the angle of rotation of the rotating shaft 60.

[0047] Please see Figures 1 to 13 This application provides a food processor 100, which can be used to make soy milk, rice paste, juice, etc. The food processor 100 includes a base 10, a mixing cup assembly 20, and a lid 30.

[0048] The base 10 includes a base 11 and a support 12 extending upward from the base 11. The support 12 and the base 11 can be integrally formed or separately formed and then assembled together. The support 12 is provided with a bushing 50, and the inner wall of the bushing 50 has a plurality of sets of teeth arranged circumferentially, each set of teeth including a first tooth 51 and a second tooth 52.

[0049] The mixing cup assembly 20 is assembled on the base 11. The mixing cup assembly 20 includes a mixing cup 21, a heating plate 22, and a mixing blade assembly 23. The heating plate 22 and the mixing blade assembly 23 are disposed at the bottom of the mixing cup 21. The mixing cup 21 is used to hold food ingredients, the heating plate 22 is used to heat the food ingredients in the mixing cup 21, and the blade assembly 23 is used to stir and pulverize the food ingredients in the mixing cup 21.

[0050] The cover 30 houses a control component 31, the support base 12 houses a power supply component 13, and the base 11 or the bottom of the stirring cup 21 houses a motor 40. The control component 31 can be a control circuit board or a controller, but is not limited to these. The power supply component 13 can be a wired or wireless power source, such as a power board or a storage battery, but is not limited to these. The power supply component 13 and the control component 31 are electrically connected via leads, and the power supply component 13 is electrically connected to the heating plate 22 and the motor 40.

[0051] Since the electronic control component 31 is located inside the cover 30 and the power supply component 13 is located inside the support base 12, the space inside the cover 30 can be used to accommodate the electronic control component 31, and the space inside the support base 12 can be used to accommodate the power supply component 13. This avoids stacking the electronic control component 31 and the power supply component 13 inside the base 11, thus reducing the height of the base 11 and effectively reducing the height of the food processor 100. This makes the food processor 100 more compact and exquisite, taking up less space. Furthermore, because the overall height of the food processor 100 is lower, the vibration generated by the food processor 100 during operation can be reduced. At the same time, this arrangement of the electronic control component 31 and the power supply component 13 results in a greater distance between them, avoiding electromagnetic interference between the electronic control component 31 and the power supply component 13.

[0052] There is a gap between two adjacent shafts 61. This provides better elasticity to the shafts 61, allowing the cover 30 to rotate more smoothly. Two adjacent shafts 61 are connected together. This provides higher strength to the shaft 60, and better stability to the cover 30 during use.

[0053] In the illustrated embodiment, the motor 40 is disposed at the bottom of the mixing cup 21, and the blade assembly 23 is directly driven connected to the output shaft of the motor 40. In another embodiment, the motor 40 is disposed at the bottom of the mixing cup 21, and the blade assembly 23 is connected to the output shaft of the motor 40 via upper and lower clutches.

[0054] Specifically, the cover 30 includes a cover housing 37, an operation panel 36, and a control board box 35. The electronic control component 31 is disposed inside the cover housing 37, the control board box 35 covers the electronic control component 31, and the operation panel 36 is fixed on the control board box 35. This design is simple in structure and easy to assemble. Furthermore, the user operates the operation panel 36 from the top of the food processor 100, making operation more convenient.

[0055] In the illustrated embodiment, the control panel box 35 is fixed to the cover housing 37 by fasteners, and the electronic control component 31 is clamped and positioned by the control panel box 35 and the cover housing 37. This provides a simple and reliable way to position the electronic control component 31 within the cover 30.

[0056] The cover 30 is rotatably assembled to the support base 12. The cover 30 covers the mixing cup assembly 20. The cover 30 has a rotating shaft 60 that mates with the bushing 50. The rotating shaft 60 includes a plurality of shafts 61 arranged circumferentially and a first protrusion 62 disposed on the shafts 61. The first protrusion 62 meshes with the first tooth 51 and the second tooth 52. Specifically, the support base 12 includes two bushings 50 disposed opposite to each other. Correspondingly, the cover 30 includes two rotating shafts 60, which respectively mate with the two bushings 50. Specifically, the rotating shaft 60 is disposed on the cover housing 37.

[0057] The number of shafts 61 is the same as the number of sets of teeth. In the illustrated embodiment, the rotating shaft 60 includes 5 shafts 61, and the inner wall of the bushing 50 is provided with 5 sets of teeth. In other embodiments, the rotating shaft 60 includes 2, 3, 4, or 6 shafts 61, and the inner wall of the bushing 50 is provided with 2, 3, 4, or 6 sets of teeth, respectively. These are just some examples and are not limited to the above examples.

[0058] When the cover 30 is switched from the closed state to the open state, the rotating shaft 60 rotates within the bushing 50; when the cover 30 is switched from the open state to the closed state, the rotating shaft 60 rotates in the opposite direction within the bushing 50.

[0059] Wherein, the radial height of the first tooth 51 is greater than the radial height of the second tooth 52. When the cover 30 is opened from the closed state, the first protrusion 62 is subjected to the force of the first tooth 51, causing the shaft 61 to undergo elastic deformation in the radial direction. When the cover 30 is closed from the open state, the first protrusion 62 is subjected to the force of the second tooth 52, causing the shaft 61 to undergo elastic deformation in the radial direction.

[0060] Here is a description of the entire process of the cover 30 switching from the closed state to the open state: The user rotates the cover 30 upwards, opening it from the closed state. This allows the rotating shaft 60 to begin rotating within the bushing 50. At this time, the first protrusion 62 is first subjected to the radial pressure of the first tooth 51, causing the shaft 61 to undergo radial elastic deformation. This allows the first protrusion 62 to slide past the first tooth 51. After the first protrusion 62 leaves the first tooth 51, the shaft 61 returns to its original shape due to its own elasticity. As the rotating shaft 60 rotates within the bushing 50... As the shaft continues to rotate, the first protrusion 62 then contacts the second tooth 52 and is subjected to the radial pressure force of the second tooth 52, causing the shaft 61 to undergo elastic deformation again in the radial direction. This allows the first protrusion 62 to slide past the second tooth 52. After the first protrusion 62 leaves the second tooth 52, the shaft 61 returns to its original shape under its own elasticity. At this time, the first protrusion 62 is located between the second tooth 52 and the first tooth 51. The first tooth 51 and the second tooth 52 together limit the first protrusion 62, keeping the cover 30 in the open state.

[0061] Here's a further description of the process of the cover 30 switching from the open to the closed state: The user rotates the cover 30 downwards, causing the shaft 60 to begin rotating in the reverse direction within the bushing 50. At this time, the first protrusion 62 is first subjected to the radial pressure of the second tooth 52, causing the shaft 61 to undergo radial elastic deformation, allowing the first protrusion 51 to slide past the second tooth 52. After the first protrusion 62 leaves the second tooth 52, the shaft 61 returns to its original shape under its own elasticity. As the shaft 60 continues to rotate in the reverse direction within the bushing 50, the first protrusion 62 then contacts the first tooth 51 and is subjected to the radial pressure of the first tooth 51, causing the shaft 61 to undergo radial elastic deformation, allowing the first protrusion 62 to slide past the first tooth 51. Subsequently, the shaft 61 returns to its original shape under its own elasticity. At this time, the first protrusion 62 is located between the first tooth 51 and the second tooth 52, and the cover 30 is placed on top of the mixing cup assembly 20.

[0062] When the lid 30 is opened from the closed state, the first protrusion 62 needs to pass through the first tooth 51. Since the radial height of the first tooth 51 is greater than the radial height of the second tooth 52, the shaft 61 needs to generate a large elastic deformation in the radial direction. Obviously, the first tooth 51 needs to apply a large force to the first protrusion 62. In other words, a large force needs to be applied to the lid 30 to cause the shaft 61 to generate a large elastic deformation in order to open the lid 30. In this way, during the operation of the food processor 100, the lid 30 can be effectively prevented from being opened due to various accidental operations. Furthermore, for the same reasons mentioned above, the lid 30 is less prone to vibration during the operation of the food processor, resulting in better stability. When the lid 30 is switched to the open state, the first protrusion 62 simultaneously abuts against the first tooth 51 and the second tooth 52, allowing the lid 30 to remain stably in the open state and preventing it from falling off. In addition, by cooperating with the bushing 50, the cover 30 can be rotated and kept stable in both closed and open states. Its structure is simple, easy to assemble, and low in cost.

[0063] The rotating shaft 60 includes a second protrusion 63 disposed on the shaft body 61. The second protrusion 63 engages with the first tooth 51. When the cover 30 is in the open state, the first protrusion 62 simultaneously abuts against the first tooth 51 and the second tooth 52, and the second protrusion 63 abuts against the first tooth 51. In this way, the cover 30 can be held more stably in the open state.

[0064] In one embodiment, the radial height of the second protrusion 63 is less than the radial height of the first protrusion 62, while the radial height of the first tooth 51 is greater than the radial height of the second tooth 52. This ensures that the cover 30 remains stably in the open state, and when the cover 30 closes from the open state, the first protrusion 62 passes through the second tooth 52, while the second protrusion 63 passes through the first tooth 51. This allows the cover 30 to disengage from the open state and rotate downwards without applying excessive force, resulting in a better user experience.

[0065] Each set of teeth includes a third tooth 53, with the first tooth 51 located between the second tooth 52 and the third tooth 53. The second protrusion 63 engages with the third tooth 53 and the first tooth 51. When the cover 30 is opened from the closed state, the force exerted on the second protrusion 63 by the third tooth 53 and the force exerted on the first protrusion 62 by the second tooth 52 together cause the shaft 61 to undergo radial elastic deformation. Thus, when the cover 30 is opened, the forces exerted on the first protrusion 62 and the second protrusion 63 act together on the shaft 61, allowing the shaft 61 to undergo radial elastic deformation more smoothly and preventing tilting. In the illustrated embodiment, there is one third tooth 53. In other embodiments, there are two or more third teeth 53.

[0066] Please see Figure 7 and Figure 8 When the cover 30 is in the closed state, the first protrusion 62 engages with the first tooth 51 and the second tooth 52, and the second protrusion 63 engages with the first tooth 51 and the third tooth 53. (See also...) Figure 9 and Figure 10 When the cover 30 is open, the rotating shaft 60 has rotated one tooth within the bushing 50. At this time, the first protrusion 62 engages with the first tooth 51 and the third tooth 53, and the second protrusion 63 engages with the second tooth 52 and the third tooth 53. Please refer to [link / reference]. Figure 11 and Figure 12 While the cover 30 is still open, the rotating shaft 60 has rotated two teeth within the bushing 50. At this time, the first protrusion 62 engages with the second tooth 52 and the third tooth 53, and the second protrusion 63 engages with the first tooth 51 and the second tooth 52. Please refer to [link / reference]. Figure 13 With the cover 30 in the open state, the rotating shaft 60 has rotated 3 teeth within the bushing 50, which is equivalent to the first protrusion 62 and the second protrusion 63 on each shaft 61 rotating to mesh with another set of teeth on the bushing. At this time, the first protrusion 62 meshes with the first tooth 51 and the second tooth 52, and the second protrusion 63 meshes with the first tooth 51 and the third tooth 53.

[0067] In one embodiment, the radial height of the third tooth 53 is less than the radial height of the second tooth 52. Thus, during the process of switching the cover 30 from a closed state to an open state, or vice versa, the force exerted by the third tooth 53 on the first protrusion 62 and the force exerted on the second protrusion 63 are relatively small. This results in resistance to the cover 30 at the moment of closing and opening, but allows for smooth state switching during the closing and opening processes.

[0068] The rotating shaft 60 includes a shaft hole 65 formed by a plurality of shaft bodies 61, and the bushing 50 includes a shaft center 55 extending into the shaft hole 65. The shaft center 55, in cooperation with the rotating shaft 60, better supports the cover 30 in the open state. The shaft center 55 is cylindrical, the stepped portion 551 is an annular protrusion protruding radially outward from the shaft center 55, and the limiting portion 67 is an annular cylinder, abutting axially against the stepped portion 551.

[0069] Please see Figure 5The shaft 55 has a stepped portion 551, and the rotating shaft 60 has a limiting portion 67 that abuts against the stepped portion 551. Furthermore, there is a gap 550 between several shaft bodies 61 and the bottom wall of the bushing 50. By setting the gap 550, interference between the shaft bodies 61 and the bottom wall of the bushing 50 is avoided when the rotating shaft 60 rotates, thus preventing it from affecting the feel. This allows the cover 30 to open or close more smoothly.

[0070] Please continue reading. Figure 5 A clearance space 618 is provided between several of the shafts 61 and the axis 55. The clearance space 618 is not less than the amount of elastic deformation generated radially by the shafts 61 during rotation. Thus, by providing the clearance space 618, sufficient space is provided for the elastic deformation generated radially by the shafts 61 during rotation. The clearance space 618 can be greater than or equal to the maximum amount of elastic deformation generated by the shafts 61 during rotation.

[0071] Please see Figure 4 The bushing 50 includes a notch 56 at its end, and the rotating shaft 60 includes a boss 66 located within the notch 56. The boss 66 is confined within the notch 56, and can move within the notch 56 when the rotating shaft 60 rotates. The boss 66, in cooperation with the notch 56, limits the range of angles the lid 30 can rotate from a closed state to an open state. Furthermore, the boss 66, in cooperation with the notch 56, more stably confines the lid 30 to the open state, preventing it from tipping over backwards towards the food processor 100 due to an excessively large opening angle.

[0072] Preferably, the angle at which the boss 66 rotates within the notch 56 is between 55 and 90 degrees. That is, the angle at which the lid 30 rotates relative to its closed state in the open state is between 55 and 90 degrees. Thus, when the lid 30 is in the open state, the mixing cup assembly 20 can be easily removed without interfering with the lid 30, and the lid 30 will not tip over towards the rear of the food processor 30, making it safer to use.

[0073] In some embodiments, the angle at which the boss 66 rotates within the notch 56 can be 55 degrees, 60 degrees, 65 degrees, 70 degrees, 72 degrees, 75 degrees, 80 degrees, 85 degrees, 90 degrees, or any value between any two of the above.

[0074] Please see Figure 2 and Figure 6 The support base 12 is provided with a groove 129, and the bushing 50 is provided with a protrusion 59 that cooperates and is fixed with the groove 129. The bushing 50 can be easily assembled onto the support base 12 through the cooperation of the protrusion 59 and the groove 129. The protrusion 59 interferes with the inner wall of the groove 129.

[0075] Please see Figure 6 The cover 30 is provided with a mounting hole 309, and the rotating shaft 60 is provided with a mounting foot 609 that is fixedly engaged with the mounting hole 309. By engaging the mounting foot 609 and the mounting hole 309, the rotating shaft 60 can be easily assembled onto the support base 12.

[0076] 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 rotating shaft assembly, characterized in that, It includes: A bushing (50) has several sets of teeth arranged circumferentially on its inner wall, each set of teeth including a first tooth (51) and a second tooth (52); and A rotating shaft (60) cooperates with the bushing (50). The rotating shaft (60) includes a plurality of shaft bodies (61) arranged circumferentially and a first protrusion (62) disposed on the shaft body (61). The first protrusion (62) meshes with the first tooth (51) and the second tooth (52). Wherein, the radial height of the first tooth (51) is greater than the radial height of the second tooth (52). When the shaft (60) rotates along the first direction, the first protrusion (62) is subjected to the force of the first tooth (51), causing the shaft (61) to undergo elastic deformation in the radial direction. When the shaft (60) rotates along the second direction, the first protrusion (62) is subjected to the force of the second tooth (52), causing the shaft (61) to undergo elastic deformation in the radial direction.

2. The hinge assembly of claim 1, wherein: The rotating shaft (60) includes a second protrusion (63) disposed on the shaft body (61), the second protrusion (63) cooperating with the first tooth (51), the first protrusion (62) simultaneously abutting against the first tooth (51) and the second tooth (52), and the second protrusion (63) abutting against the first tooth (51).

3. The hinge assembly of claim 2, wherein: Each set of teeth includes a third tooth (53), the first tooth (51) is located between the second tooth (52) and the third tooth (53), the second protrusion (63) meshes with the third tooth (53) and the first tooth (51), when the shaft (60) rotates in the first direction, the second protrusion (63) is subjected to the force of the third tooth (53) and the first protrusion (62) is subjected to the force of the first tooth (51), which together cause the shaft (61) to undergo elastic deformation in the radial direction.

4. The pivot assembly of claim 3, wherein: The radial height of the third tooth (53) is less than the radial height of the second tooth (52).

5. The pivot assembly of claim 1, wherein: There is a gap between two adjacent shafts (61); or, two adjacent shafts (61) are connected together.

6. The pivot assembly of claim 1, wherein: The rotating shaft (60) includes a shaft hole (65) surrounded by a plurality of shaft bodies (61), and the bushing (50) includes a shaft center (55) extending into the shaft hole (65).

7. The pivot assembly of claim 1, wherein: The bushing (50) includes a notch (56) at its end, and the rotating shaft (60) includes a boss (66) located within the notch (56). The boss (66) is confined within the notch (56), and the boss (66) is movable within the notch (56) when the rotating shaft (60) rotates.

8. A food processor, characterized in that, It includes: The base (10) includes a base (11) and a support (12) extending upward from the base (11). The support (12) is provided with a bushing (50). The inner wall of the bushing (50) is provided with a plurality of sets of teeth arranged circumferentially. Each set of teeth includes a first tooth (51) and a second tooth (52). A mixing cup assembly (20) is assembled on the base (11). The mixing cup assembly (20) includes a mixing cup (21), a heating plate (22), and a stirring blade assembly (23). The heating plate (22) and the stirring blade assembly (23) are disposed at the bottom of the mixing cup (21). The cover (30) is rotatably assembled on the support base (12). The cover (30) covers the stirring cup assembly (20). The cover (30) is provided with a rotating shaft (60) that cooperates with the bushing (50). The rotating shaft (60) includes a plurality of shafts (61) arranged circumferentially and a first protrusion (62) provided on the shafts (61). The first protrusion (62) meshes with the first tooth (51) and the second tooth (52). Wherein, the radial height of the first tooth (51) is greater than the radial height of the second tooth (52). When the cover (30) is opened from the closed state, the first protrusion (62) is subjected to the force of the first tooth (51), causing the shaft (61) to undergo elastic deformation in the radial direction. When the cover (30) is closed from the open state, the first protrusion (62) is subjected to the force of the second tooth (52), causing the shaft (61) to undergo elastic deformation in the radial direction.

9. The food processor as described in claim 8, characterized in that: There is a gap between two adjacent shafts (61); or, two adjacent shafts (61) are connected together.

10. The food processor as described in claim 8, characterized in that: The rotating shaft (60) includes a second protrusion (63) disposed on the shaft body (61). The second protrusion (63) engages with the first tooth (51). When the cover (30) is in the open state, the first protrusion (62) simultaneously abuts against the first tooth (51) and the second tooth (52), and the second protrusion (63) abuts against the first tooth (51).

11. The food processor of claim 10, wherein: The radial height of the second protrusion (63) is less than the radial height of the first protrusion (62).

12. The food processor of claim 10, wherein: Each set of teeth includes a third tooth (53), the first tooth (51) is located between the second tooth (52) and the third tooth (53), the second protrusion (63) meshes with the third tooth (53) and the first tooth (51), when the cover (30) is opened from the closed state, the second protrusion (63) is subjected to the force of the third tooth (53) and the first protrusion (62) is subjected to the force of the first tooth (51), which together cause the shaft (61) to undergo elastic deformation in the radial direction.

13. The food processor of claim 12, wherein: The radial height of the third tooth (53) is less than the radial height of the second tooth (52).

14. The food processor of claim 8, wherein: The rotating shaft (60) includes a shaft hole (65) surrounded by a plurality of shaft bodies (61), and the bushing (50) includes a shaft center (55) extending into the shaft hole (65).

15. The food processor of claim 14, wherein: The shaft (55) is provided with a stepped portion (551), the rotating shaft (60) is provided with a limiting portion (67) that abuts against the stepped portion (551), and there is a gap (550) between a plurality of shaft bodies (61) and the bottom wall of the bushing (50).

16. The food processor of claim 14, wherein: A clearance space (618) is provided between several of the shafts (61) and the shaft center (55), and the clearance space (618) is not less than the amount of elastic deformation generated radially by the shafts (61) during rotation.

17. The food processor of claim 8, wherein: The bushing (50) includes a notch (56) at its end, and the rotating shaft (60) includes a boss (66) located within the notch (56). The boss (66) is confined within the notch (56), and the boss (66) is movable within the notch (56) when the rotating shaft (60) rotates.

18. The food processor of claim 17, wherein: The angle at which the boss (66) rotates within the notch (56) is between 55 degrees and 90 degrees.

19. The food processor of claim 8, wherein: The support base (12) is provided with a groove (129), and the bushing (50) is provided with a protrusion (59) that cooperates and is fixed with the groove (129); and / or, the cover (30) is provided with a mounting hole (309), and the rotating shaft (60) is provided with a mounting foot (609) that is fixedly cooperated with the mounting hole (309).

20. The food processor of any one of claims 8 to 19, wherein: The cover (30) is provided with a control component (31), the support base (12) is provided with a power supply component (13), and the base (11) or the bottom of the stirring cup (21) is provided with a motor (40).

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