Multi-speed food processor

Abstract

The utility model discloses a multi-speed food processor, which relates to the technical field of electric appliances and comprises a cup holder, a cutter holder is arranged in the cup holder, and the cutter holder is provided with a high-speed cutter through a high-speed shaft and is provided with a low-speed cutter through a low-speed shaft. The low-speed shaft is in transmission connection with the high-speed shaft through a speed reducing mechanism, so that the same-direction differential rotation of the low-speed shaft and the high-speed shaft is realized. The internal structure of the cutter assembly is optimized and adjusted, the low-speed shaft and the high-speed shaft rotate in the same direction and at differential speed through the speed reducing mechanism, so that the high-speed cutter has high rotating speed and low torsion, and the low-speed blade has low rotating speed and high torsion; the combination of the cutter assembly and the cutter assembly is beneficial to improving the crushing capacity and the processing efficiency of the cutter assembly, so that the cutter assembly can be suitable for processing hard food materials such as ice cubes or nuts.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a multi-speed food processor. Background Art

[0002] Food processors have multiple functions, including making soy milk, grinding dry powder, squeezing juice, blending meat fillings, and shaved ice. They make food preparation simpler and more diverse, making them popular and sought after. However, traditional food processors have limited functions and typically only have a single speed, making them unable to simultaneously meet multiple speed requirements, which has certain drawbacks.

[0003] Chinese patent publication number CN 203524431U discloses a dual-speed juicer that combines a crushing blade with a grinding blade. The patent provides a crushing blade and a grinding blade that are distributed vertically within the machine base. During operation, the grinding blade is decelerated by a deceleration linkage assembly, thereby forming a speed difference with the crushing blade. This enables the upper and lower blades to rotate in opposite directions at differential speeds, making the processed food more delicate.

[0004] However, the patent still has the following problems: First, the reduction linkage component of the patent can only realize the reverse rotation of the grinding blade and the crushing blade, and cannot realize the same-direction rotation. Therefore, it is only suitable for the grinding processing of ingredients such as beans, but not for the secondary crushing of some harder ingredients such as ice cubes or nuts; Second, the reduction linkage component of the patent adopts a transmission method of planetary gear fixation and internal gear ring rotation output to drive the grinding knife seat to rotate, and then drive the grinding blade to rotate. Therefore, a blade seat is required to wrap the internal gear to prevent the internal gear from leaking out. However, this not only increases the components of the reduction linkage component, but also makes its structure complicated and occupies a large space, which is not conducive to assembly and layout. Summary of the Invention

[0005] The utility model provides a multi-speed food processor, the main purpose of which is to solve the problems existing in the prior art.

[0006] The utility model adopts the following technical solutions:

[0007] A multi-speed food processor includes a cup holder, wherein a knife holder is provided in the cup holder, wherein the knife holder is provided with a high-speed cutter via a high-speed shaft, and a low-speed cutter via a low-speed shaft; the low-speed shaft is connected to the high-speed shaft via a reduction mechanism, thereby achieving co-directional differential rotation of the low-speed shaft and the high-speed shaft.

[0008] Furthermore, the low-speed shaft is rotatably sleeved on the outside of the high-speed shaft and is transmission-connected to the high-speed shaft via the speed reduction mechanism.

[0009] Furthermore, the reduction mechanism includes a sun gear, planetary gears, a ring gear and a planet carrier that cooperate with each other, the sun gear is fixedly sleeved on the outside of the high-speed shaft, the ring gear is fixedly connected to the tool holder, and the planet carrier is fixedly connected to the low-speed shaft.

[0010] Furthermore, the tool holder includes an upper tool holder and a lower tool holder that are detachably connected, and there is an installation cavity between the upper tool holder and the lower tool holder; the sun gear, planetary gears and planetary carrier are all installed in the installation cavity, and the ring gear is fixed to the inner side wall of the upper tool holder.

[0011] Furthermore, the gear ring and the upper tool holder are integrally formed.

[0012] Furthermore, the planetary frame includes an upper support frame and a lower support frame that are detachably connected, and a plurality of planetary wheels are provided between the upper support frame and the lower support frame via a planetary wheel shaft; the low-speed shaft is fixedly connected to the upper support frame.

[0013] Furthermore, the low-speed shaft and the upper support frame are integrally formed.

[0014] Furthermore, the high-speed shaft includes a high-speed upper shaft and a high-speed lower shaft that are detachably connected, and a limiting recess for fixing the sun gear is provided between the high-speed upper shaft and the high-speed lower shaft.

[0015] Furthermore, a bearing copper sleeve is provided between the high-speed shaft and the low-speed shaft.

[0016] Furthermore, it also includes an oil seal and a pressure plate. The oil seal is sleeved on the outside of the low-speed shaft and fixed in the tool holder through the pressure plate.

[0017] Compared with the prior art, the beneficial effects produced by the present invention are:

[0018] 1. The present invention optimizes and adjusts the internal structure of the cutter assembly, and realizes the same-direction and differential rotation of the low-speed shaft and the high-speed shaft through the reduction mechanism, thereby making the high-speed cutter have high speed and low torque, and making the low-speed blade have low speed and high torque. The combination of the two helps to improve the crushing ability and processing efficiency of the cutter assembly, making it suitable for processing some harder ingredients such as ice cubes or nuts.

[0019] 2. The reduction mechanism of the utility model adopts a transmission mode of fixed gear ring and output of planetary carrier, which can not only realize the same direction rotation of high-speed cutter and low-speed cutter, but also can play the effect of reducing speed and increasing torque for low-speed cutter. It has the advantages of simple structure and compact layout, and effectively overcomes the defects of complex structure and excessive volume of reduction mechanism in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is a cross-sectional schematic diagram of the present utility model.

[0022] In the figure: 1-cup holder; 11-annular step surface; 2-knife seat; 21-upper knife seat; 211-annular boss; 22-lower knife seat; 3-high-speed cutter; 31-high-speed shaft; 311-high-speed upper shaft; 312-high-speed lower shaft; 313-limiting recess; 314-bearing; 32-lower clutch; 33-small nut; 4-low-speed cutter; 41-low-speed shaft; 42-large nut; 43-bearing copper sleeve; 51-sun gear; 52-planet gear; 53-gear ring; 54-planet carrier; 541-upper support frame; 542-lower support frame; 543-connecting column; 55-planet gear shaft; 61-oil seal; 62-pressure plate; 63-sealing ring; 7-gasket. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention will be described below with reference to the accompanying drawings. In order to fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0024] Reference Figure 1 A multi-speed food processor includes a body, a cup holder 1, and a cup body, arranged sequentially from bottom to top. The body is provided with a drive motor, and the cup holder 1 is provided with a cutter assembly connected to the drive motor for crushing food in the cup body. The main innovation of this utility model lies in the structural improvement of the internal structure of the cup holder 1. Therefore, the specific structure of the body and cup body will not be described in detail. Those skilled in the art can design or flexibly match a suitable body and cup body based on the specific structure of the cup holder 1 provided in this embodiment and in combination with existing technologies.

[0025] Reference Figure 1 and Figure 2 The cutter assembly includes a cutter seat 2, a high-speed cutter 3, a low-speed cutter 4 and a reduction mechanism. A cutter seat 2 is provided in the cup seat 1. The cutter seat 2 is provided with a high-speed cutter 3 through a high-speed shaft 31, and a low-speed cutter 4 through a low-speed shaft 41. The low-speed shaft 41 is rotatably sleeved on the outside of the high-speed shaft 31 and is connected to the high-speed shaft 31 through a reduction mechanism, thereby achieving the same-direction differential rotation of the low-speed shaft 41 and the high-speed shaft 31. This embodiment optimizes and adjusts the internal structure of the cutter assembly, and achieves the same-direction and differential rotation of the low-speed shaft 41 and the high-speed shaft 31 through the reduction mechanism, thereby making the high-speed cutter 3 have a high speed and low torque, and making the low-speed blade have a low speed and high torque. The combination of the two helps to improve the crushing ability and processing efficiency of the cutter assembly, making it suitable for processing some harder ingredients such as ice cubes or nuts.

[0026] Reference Figure 2The reduction mechanism comprises a sun gear 51, planetary gears 52, a ring gear 53, and a planet carrier 54, which cooperate with each other. The sun gear 51 is fixedly mounted on the exterior of the high-speed shaft 31, the ring gear 53 is fixedly connected to the cutter seat 2, and the planet carrier 54 is fixedly connected to the low-speed shaft 41. During operation, the drive motor drives the high-speed shaft 31 to rotate, thereby causing the high-speed cutter 3 to rotate at high speed. Simultaneously, the sun gear 51 rotates synchronously with the high-speed shaft 31, causing the planetary gears 52 to rotate around the inner circumference of the ring gear 53. This, in turn, drives the low-speed shaft 41 through the planet carrier 54, thereby reducing the speed of the low-speed cutter 4 and increasing its torque. It can be seen that the reduction mechanism in this embodiment, which adopts a transmission method with the ring gear 53 fixed and the planet carrier 54 output, not only achieves the same-direction rotation of the high-speed cutter 3 and the low-speed cutter 4, but also reduces the speed and increases the torque of the low-speed cutter 4. It has the advantages of simple structure and compact layout, effectively overcoming the shortcomings of the reduction mechanism in the prior art, which is complex and bulky.

[0027] Reference Figure 1 and Figure 2 The cutter block 2 includes a detachably connected upper cutter block 21 and a lower cutter block 22, with a mounting cavity defined between them. The sun gear 51, planetary gears 52, and planetary carrier 54 are all mounted within the mounting cavity, and the ring gear 53 is fixed to the inner sidewall of the upper cutter block 21. Placing the reduction mechanism within the mounting cavity of the cutter block 2 protects it from damage or contamination, thereby extending its service life. As a preferred option, the ring gear 53 and the upper cutter block 21 are integrally molded, thereby reducing the number of components in the cutter assembly and making its structure more streamlined and compact.

[0028] Reference Figure 2 The planetary carrier 54 comprises a detachably connected upper support frame 541 and a lower support frame 542. Several planetary gears 52 are mounted between the upper and lower support frames 541 and 542 via planetary gear shafts 55. The low-speed shaft 41 is fixedly connected to the upper support frame 541. Specifically, the upper support frame 541 is equipped with several connecting columns 543, and the lower support frame 542 is bolted to the connecting columns 543, creating a mounting space for the planetary gears 52 between the upper support frame 541 and the lower support frame 542. To further reduce the number of parts and optimize the structure of the cutter assembly, the low-speed shaft 41 and the upper support frame 541 are also integrally molded.

[0029] Reference Figure 2The high-speed shaft 31 includes a detachably connected high-speed upper shaft 311 and a high-speed lower shaft 312. A retaining recess 313 for securing the sun gear 51 is provided between the high-speed upper shaft 311 and the high-speed lower shaft 312. Specifically, the high-speed lower shaft 312 is rotatably mounted on the lower cutter seat 22 via a bearing 314. Its lower end extends to the bottom of the lower cutter seat 22 and is provided with a lower clutch 32 for connecting to the drive motor. Its upper end is provided with a blind hole for mounting the high-speed upper shaft 311. The lower end of the high-speed upper shaft 311 is inserted into the blind hole, and its upper end extends to the top of the upper cutter seat 21. A high-speed cutter 3 is provided via a small nut 33. A recess is provided on the outer periphery of the high-speed upper shaft 311. This recess, together with the upper end of the high-speed lower shaft 312, forms the retaining recess 313 for securing the sun gear 51. This design not only ensures a secure and reliable assembly relationship between the sun gear 51 and the high-speed shaft 31, but also facilitates assembly and disassembly, facilitating maintenance.

[0030] Reference Figure 2 A copper bearing sleeve 43 is provided between the high-speed shaft 31 and the low-speed shaft 41. Specifically, the low-speed shaft 41 is sleeved on the outside of the high-speed shaft 31. The upper end of the low-speed shaft 41 extends to the top of the upper cutter seat 21 and is provided with a low-speed cutter 4 via a large nut 42. The lower end of the low-speed shaft 41 is integrally provided with an upper support frame 541, and a clearance groove is provided on the inner side of the low-speed shaft 41. The copper bearing sleeve 43 is provided in the clearance groove. The copper bearing sleeve 43 can play a role similar to that of the ball bearing 314, thereby better supporting the high-speed shaft 31.

[0031] Reference Figure 2 The cutter assembly also includes an oil seal 61 and a pressure plate 62. The oil seal 61 is sleeved on the outside of the low-speed shaft 41 and fixed to the upper cutter seat 21 via the pressure plate 62. This prevents external liquids or debris from entering the cutter seat 2 through the gap between the upper cutter seat 21 and the low-speed shaft 41. In addition, a sealing ring 63 is also provided at the end of the high-speed cutter 3 and the low-speed shaft 41 to prevent external liquids or debris from entering the cutter seat 2 through the gap between the high-speed shaft 31 and the low-speed shaft 41.

[0032] Reference Figure 2 To facilitate assembly and disassembly, the present embodiment detachably mounts the blade holder 2 within the cup holder 1. Specifically, the cup holder 1 is provided with an internal thread for mounting the cup body, and is provided with an annular stepped surface 11. The outer periphery of the upper blade holder 21 is provided with an annular boss 211 that mates with the annular stepped surface 11. Thus, after the cup body is installed, the blade holder 2 can be locked within the cup holder 1, making assembly and disassembly of the cutter assembly more convenient.

[0033] Reference Figure 1 and Figure 2 Since the sun gear 51 is rotatable and the bearing copper sleeve 43 is non-rotatable, in order to effectively isolate the two and avoid mutual wear, this embodiment provides a gasket 7 on the top of the sun gear 51, and the gasket 7 is preferably a bakelite washer.

[0034] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A multi-speed food processor, characterized in that: It includes a cup holder, a knife holder is provided in the cup holder, the knife holder is provided with a high-speed cutter through the high-speed shaft, and a low-speed cutter is provided through the low-speed shaft; the low-speed shaft is connected to the high-speed shaft through a reduction mechanism, thereby realizing the same-direction differential rotation of the low-speed shaft and the high-speed shaft; the low-speed shaft is rotatably sleeved on the outside of the high-speed shaft and is connected to the high-speed shaft through the reduction mechanism; the reduction mechanism includes a sun gear, planetary gears, a ring gear and a planet carrier that cooperate with each other, the sun gear is fixedly sleeved on the outside of the high-speed shaft, the ring gear is fixedly connected to the knife holder, and the planet carrier is fixedly connected to the low-speed shaft.

2. The multi-speed food processor according to claim 1, wherein: The tool holder includes an upper tool holder and a lower tool holder that are detachably connected, and there is a mounting cavity between the upper tool holder and the lower tool holder; the sun gear, planetary gears and planetary carrier are all installed in the mounting cavity, and the ring gear is fixed to the inner side wall of the upper tool holder.

3. The multi-speed food processor according to claim 1, wherein: The gear ring and the upper knife seat are integrally formed.

4. The multi-speed food processor according to claim 1, wherein: The planetary frame includes an upper support frame and a lower support frame that are detachably connected, and a plurality of planetary wheels are arranged between the upper support frame and the lower support frame via a planetary wheel shaft; the low-speed shaft is fixedly connected to the upper support frame.

5. The multi-speed food processor according to claim 4, characterized in that: The low-speed shaft and the upper support frame are integrally formed.

6. The multi-speed food processor according to claim 1, wherein: The high-speed shaft includes a high-speed upper shaft and a high-speed lower shaft that are detachably connected. A limiting recess for fixing the sun gear is provided between the high-speed upper shaft and the high-speed lower shaft.

7. The multi-speed food processor according to claim 1, wherein: A bearing copper sleeve is provided between the high-speed shaft and the low-speed shaft.

8. The multi-speed food processor according to claim 1, wherein: It also includes an oil seal and a pressure plate. The oil seal is sleeved on the outside of the low-speed shaft and is fixed in the tool holder through the pressure plate.

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