A noise-reducing food processing machine

Abstract

The present invention discloses a noise-reducing food processing machine, comprising a machine body, a mixing cup and a processing part arranged in the mixing cup, wherein a motor assembly for driving the processing part is arranged in the machine body, the motor assembly comprises a motor shaft, a first driving structure connected to the motor shaft and a second driving structure coaxially sleeved on the outer periphery of the first driving structure, the processing part comprises a second processing part detachably connected to the output end of the second driving structure, a groove is arranged at the mounting end of the second processing part, the output end of the first driving structure is arranged in the projection area of ​​the bottom surface of the groove, and there is a gap between the output end of the first driving structure and the bottom surface of the groove. A gap is arranged between the output end of the first driving structure and the bottom surface of the groove, that is, the gap forms an air isolation layer, which prevents noise from being directly transmitted to the outside world through solid transmission, reduces the propagation speed of noise and increases the loss in the process of noise propagation, and realizes noise reduction.

Description

Technical Field

[0001] The invention relates to the technical field of household electrical appliances, and in particular to a noise-reducing food processor. Background Art

[0002] The existing food processing machine usually includes a machine body, a mixing cup and a processing part arranged in the mixing cup. A motor assembly for driving the processing part is arranged in the machine body. The motor assembly includes a motor shaft, a first driving structure connected to the motor shaft and a second driving structure coaxially sleeved on the outer periphery of the first driving structure. The first driving structure is connected to the second driving structure through a second reduction mechanism. When the food processing machine is working, the motor assembly usually generates vibrations and noises due to the rotation of the motor shaft driving the first driving structure and the second driving structure to rotate. In particular, the noise generated by the high-speed rotation of the first driving structure is relatively large. In addition, when the second driving structure drives the second processing part to process food, there is also relative rotation between the second driving structure and the second processing part, and friction vibration is generated to generate noise. When the second processing part is working, the noise of the food processing machine is particularly large. These noises will be transmitted to the outside through the output ends of the first driving structure and the second driving structure. In addition, since the noise is transmitted through solids, the transmission speed is fast, the energy loss of the noise during the transmission process is small, and the noise generated is very large, which seriously affects the user experience. Summary of the invention

[0003] The object of the present invention is to provide a noise-reducing food processing machine to solve the problem of high noise in existing food processing machines.

[0004] To achieve the above-mentioned purpose, the present invention provides a noise-reducing food processor, comprising a machine body, a stirring cup and a processing part arranged in the stirring cup, wherein a motor assembly for driving the processing part is arranged in the machine body, the motor assembly comprises a motor shaft, a first driving structure connected to the motor shaft and a second driving structure coaxially sleeved on the outer periphery of the first driving structure, the processing part comprises a second processing part detachably connected to an output end of the second driving structure, a groove is arranged at the mounting end of the second processing part, the output end of the first driving structure is arranged in a projection area of ​​the bottom surface of the groove, and there is a gap between the output end of the first driving structure and the bottom surface of the groove.

[0005] During operation, the motor assembly generates noise due to vibration, especially the noise at the output end is relatively large. The noise is transmitted to the outside through the output ends of the first drive structure and the second drive structure. The output end of the second drive structure is provided with a detachably connected second processing part, the mounting end of the second processing part is provided with a groove, the output end of the first drive structure is arranged in the projection area of ​​the bottom surface of the groove, and there is a gap between the output end of the first drive structure and the bottom surface of the groove, that is, the gap forms an air isolation layer, which reduces the noise from being directly transmitted to the outside through solid propagation, reduces the noise propagation speed and increases the loss in the noise propagation process, thereby achieving noise reduction.

[0006] At the same time, due to the existence of the gap, the high-speed friction between the output end of the first drive structure and the bottom surface of the groove can be avoided, which can cause energy loss, vibration and noise, and ensure that the first drive structure and the second processing part will not interfere with each other when the food processor is working, so that the food processor can work more stably, and avoid the situation where the second processing part and the first drive structure have different relative speeds but contact, resulting in large friction between the two, causing the food processor to fail to operate normally. At the same time, it can also avoid the situation where the friction between the two causes large wear, and extend the service life of the second processing part and the first drive structure.

[0007] In a preferred implementation of the food processor, the output end surface of the second driving structure is inserted into the groove and connected to the second processing member.

[0008] By inserting the output end of the second driving structure into the groove and connecting it with the second processing part, it is avoided that the first driving structure collides and rubs with the second processing part due to a certain deflection during high-speed rotation, thereby affecting the normal use of the food processor.

[0009] In a preferred implementation of the food processor, the inner side wall of the groove is provided with a step, and the output end surface of the second drive structure abuts against the step to form a cavity between the output end surface of the second drive structure and the bottom surface of the groove.

[0010] By setting a step on the inner side wall of the groove, the output end face of the second drive structure is abutted against the step, so as to define a cavity between the output end face of the second drive structure and the bottom surface of the groove, thereby facilitating the definition of the size of the gap between the output end of the first drive structure and the bottom surface of the groove, so that the second processing part can be quickly installed on the second drive structure without repeatedly installing and adjusting the distance of the second drive structure inserted into the groove of the second processing part, so as to ensure that there is a gap between the output end of the first drive structure and the bottom surface of the groove, and to avoid direct contact between the top surface of the second processing part and the second reduction mechanism housing to cause friction damage, affecting the service life of the food processor, and generating rotation resistance, affecting the mixing efficiency and mixing effect of the second processing part. In addition, a cavity is formed between the output end face of the second drive structure and the bottom surface of the groove, which increases the gap between the output end of the first drive structure and the bottom surface of the groove, that is, increases the area of ​​the air isolation layer, further reduces the propagation speed of noise and increases the loss in the process of noise propagation, and improves the noise reduction effect.

[0011] In a preferred implementation of the food processor, the step extends along the circumference of the groove to form an annular step.

[0012] By setting the step to extend along the circumference of the groove to form an annular step, the second workpiece and the second drive structure are further facilitated to quickly position and install, and the gap between the output end of the first drive structure and the bottom surface of the groove and the output end surface of the second drive structure and the bottom surface of the groove can form an effective cavity to improve the noise reduction effect. At the same time, the circumferential annular step helps the groove to be demolded, improve production efficiency, and reduce production costs.

[0013] In a preferred implementation of the food processor, a mounting portion is provided in the output end of the second driving structure for the side wall of the groove to be inserted so as to be connected with the second processing member.

[0014] By providing a mounting portion at the output end of the second driving structure for the side wall of the groove to be inserted so as to be connected to the second processed part, an air isolation layer is formed on the inner side of the groove, which reduces the noise directly transmitted to the outside through solid propagation, reduces the propagation speed of the noise and increases the loss in the noise propagation process, thereby achieving noise reduction; the outside of the groove cooperates with the mounting portion for transmission, and the structure is reliable.

[0015] In a preferred implementation of the food processing machine, an output end surface of the first drive structure is flush with an output end surface of the second drive structure.

[0016] By making the output end face of the first driving structure flush with the output end face of the second driving structure, it is helpful to reduce the size of the output end of the first driving structure, reduce the occupied space of the first driving structure, and help achieve miniaturization.

[0017] In a preferred implementation of the food processing machine, an output end surface of the first drive structure protrudes from an output end surface of the second drive structure.

[0018] By setting the output end face of the first drive structure to a structure that protrudes from the output end face of the second drive structure, it is more convenient and quick to install the workpiece. At the same time, the output end of the first drive mechanism is protruding instead of concave, which can also prevent the user's fingers from entering the concave area and causing danger, thereby improving the user experience.

[0019] In a preferred implementation of the food processing machine, an output end surface of the second drive structure protrudes from an output end surface of the first drive structure.

[0020] By setting the output end face of the second drive structure to a structure that protrudes from the output end face of the first drive structure, the first processing part that is detachably connected to the first drive structure can be quickly and accurately installed in the first drive structure, which can prevent the first processing part from swinging during the installation process and improve the installation efficiency.

[0021] In a preferred implementation of the food processor, a first reduction mechanism is provided between the first drive structure and the motor shaft, and the first drive structure is connected to the second drive structure via a second reduction mechanism.

[0022] By setting the first drive structure and the motor shaft to be connected through the first reduction mechanism, the second drive structure performs a second reduction on the basis of the first reduction mechanism, further improving the output torque of the second drive structure, enabling it to withstand a larger load, meeting work scenarios that require a larger torque output, increasing the functionality of the food processor, and improving the user experience.

[0023] In a preferred implementation of the food processor, the first reduction mechanism includes a first sun gear, a first planetary gear and a first planetary carrier that cooperate with each other, and the first driving structure and the first planetary carrier are integrally formed.

[0024] By setting the first reduction mechanism as the first sun gear, the first planetary gear and the first planetary bracket that cooperate with each other, the structure of the first reduction mechanism is made more compact, which helps to reduce the size of the whole machine, while improving the stability of the whole machine operation and improving the user experience. In addition, the first drive structure and the first planetary bracket are integrally formed, which improves the transmission efficiency of the first drive structure and the first planetary bracket, prevents the loss of transmission energy, and avoids the situation where the first structure and the first planetary bracket slide relative to each other and cause transmission failure. In addition, the noise generated by collision or friction during the transmission process between the two can be eliminated.

[0025] In a preferred implementation of the food processing machine, the first driving structure is fixedly connected to the first planetary carrier.

[0026] By setting the first drive structure and the first planetary bracket in a fixed connection, after a long period of use of the food processor, if the first drive structure or the first planetary bracket is severely worn, the first drive structure or the first planetary bracket can be replaced to achieve normal operation of the machine, thereby reducing maintenance costs.

[0027] In a preferred implementation of the food processor, the second reduction mechanism includes a second sun gear disposed on an outer side wall of the first driving structure, a second planetary gear matched with the second sun gear, and a second planetary carrier.

[0028] By configuring the second reduction mechanism to include a second sun gear disposed on the outer side wall of the first drive structure and a second planetary gear and a second planetary bracket cooperating with the second sun gear, the structure of the second reduction mechanism is made more compact, further reducing the size of the entire machine, while improving the stability of the operation of the entire machine and enhancing the user experience.

[0029] In a preferred implementation of the food processing machine, the second planetary carrier and the second driving structure are formed integrally.

[0030] By setting the second planetary support and the second driving structure as an integrally formed structure, the transmission efficiency of the second driving structure and the first planetary support is improved, the loss of transmission energy is prevented, and the second driving structure and the first planetary support are prevented from sliding relative to each other, resulting in transmission failure. In addition, the noise generated by collision or friction between the two during the transmission process can be eliminated.

[0031] In a preferred implementation of the food processing machine, the second planetary carrier is fixedly connected to the second drive structure.

[0032] By setting the second planetary bracket and the second drive structure as a fixedly connected structure, after a long period of use of the food processor, if the second drive structure or the second planetary bracket is severely worn, the second drive structure or the second planetary bracket can be replaced to achieve normal operation of the machine, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0034] Figure 1 It is a structural schematic diagram of a food processing machine in one embodiment of the present invention;

[0035] Figure 2 is a cross-sectional view of a food processing machine according to an embodiment of the present invention;

[0036] Figure 3 It is a schematic structural diagram of the cooperation between the second driving structure and the second processing part in one embodiment of the present invention;

[0037] Figure 4 An exploded view of a motor assembly according to an embodiment of the present invention;

[0038] Figure 5 A cross-sectional view of a motor assembly according to an embodiment of the present invention;

[0039] Figure 6 is a cross-sectional view of a motor assembly according to another embodiment of the present invention;

[0040] Figure 7 A cross-sectional view of a motor assembly according to another embodiment of the present invention;

[0041] Figure 8 A cross-sectional view of a lower body of another embodiment of the present invention;

[0042] Fig. 9 is a cross-sectional view of a motor assembly according to another embodiment of the present invention;

[0043] Fig.10 An exploded view of a motor assembly according to another embodiment of the present invention;

[0044] Fig.11 is a cross-sectional view of a food processing machine according to another embodiment of the present invention;

[0045] Fig.12 for Fig.11 A partial enlarged view of the middle A part;

[0046] Fig.13 It is a schematic structural diagram of a second processing piece in another embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1- housing; 2- cup cover; 3- second machined part, 31- groove, 32- step, 33- cavity avoidance, 34- gap; 4- stirring cup; 5- motor shaft; 6- first reduction mechanism, 61- first sun gear, 62- first planetary bracket, 63- first planetary gear; 7- first drive structure, 71- first coupling, 72- first drive shaft; 8- second reduction mechanism, 81- second sun gear, 82- second planetary bracket, 83- second planetary gear, 84- upper planetary gear, 85- lower planetary gear, 86- second reduction mechanism housing; 9- second drive structure, 91- second coupling, 92- inner coupling; 10- bearing. DETAILED DESCRIPTION

[0049] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0050] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0051] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a noise-reducing food processor, comprising a machine body, a stirring cup 4 and a processing piece arranged in the stirring cup 4, a cup cover 2 covering the stirring cup 4, a motor assembly for driving the processing piece and a housing 1 for accommodating the motor assembly are arranged in the machine body, the motor assembly comprises a motor shaft 5, a first driving structure 7 connected to the motor shaft 5 and a second driving structure 9 coaxially sleeved on the outer periphery of the first driving structure 7, the first driving structure 7 is connected to the second driving structure 9 through a second reduction mechanism 8, the processing piece comprises a second processing piece 3 detachably connected to the output end of the second driving structure 9, a groove 31 is arranged at the mounting end of the second processing piece 3, the output end of the first driving structure 7 is arranged in the projection area of ​​the bottom surface of the groove 31, and a gap 34 is provided between the output end of the first driving structure 7 and the bottom surface of the groove 31.

[0052] During operation, the motor assembly generates noise due to vibration, especially the noise at the output end is relatively large. The noise is transmitted to the outside through the output ends of the first drive structure 7 and the second drive structure 9. The output end of the second drive structure 9 is provided with a detachably connected second processing piece 3, and the mounting end of the second processing piece 3 is provided with a groove 31. The output end of the first drive structure 7 is arranged in the projection area of ​​the bottom surface of the groove 31, and there is a gap 34 between the output end of the first drive structure 7 and the bottom surface of the groove 31, that is, the gap 34 forms an air isolation layer, which reduces the noise from being directly transmitted to the outside through solid propagation, reduces the noise propagation speed and increases the loss in the noise propagation process, thereby achieving noise reduction.

[0053] At the same time, due to the existence of the gap 34, the high-speed friction between the output end of the first drive structure 7 and the bottom surface of the groove 31 can be avoided, which can cause energy loss, vibration and noise, and ensure that the first drive structure 7 and the second processing part 3 will not interfere with each other when the food processor is working, so that the food processor can work more stably, and avoid the situation where the second processing part 3 and the first drive structure 7 have different relative speeds but contact, resulting in large friction between the two, causing the food processor to fail to operate normally. At the same time, it can also avoid the situation where the friction between the two causes large wear, and extend the service life of the second processing part 3 and the first drive structure 7.

[0054] In addition, the second drive structure 9 is connected to the first drive structure 7 through the second reduction mechanism 8, so that the output rotation speeds of the first drive structure 7 and the second drive structure 9 are different, which can adapt to different scenarios, meet the different needs of users, realize multi-purpose use of one machine, and enhance the user experience. At the same time, the second drive structure 9 is mounted on the periphery of the first drive structure 7, so that the internal space of the motor assembly can be fully utilized, the structure is more compact, the overall structure of the motor assembly is miniaturized, the space occupied by the motor assembly is reduced, and the user only needs to ensure that the center is accurately aligned to install it in place, which reduces the difficulty of installation. Furthermore, if Figure 3 As shown, a bevel is provided on the top of the mounting end of the second processing part 3. The presence of the bevel serves as a guide for the second processing part 3 during the assembly process, facilitates the coordinated installation of the second processing part 3 and the second driving structure 9, and improves assembly efficiency.

[0055] It should be noted that the present application does not specifically limit the output end faces of the first drive structure 7 and the second drive structure 9. The output end face of the drive shaft may be the output end face of the drive structure, and the processed part is directly fixedly connected to the output end face of the drive shaft, such as by screws. As a preferred embodiment of the present application, Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the first drive structure 7 includes a first drive shaft 72 and a first coupling 71, the end face of the first coupling 71 is the output end face of the first drive structure 7, and the second drive structure 9 includes a drive shaft and a second coupling 91, the end face of the second coupling 91 is the output end face of the second drive structure 9.

[0056] It should be noted that the present application does not specifically limit the structure of the first coupling 71 and the second coupling 91, which may be: the first coupling 71 is an inner coupling, and the second coupling 91 is an outer coupling; or the first coupling 71 is an inner coupling, and the second coupling 91 is an inner coupling; or the first coupling 71 is an outer coupling, and the second coupling 91 is an outer coupling; or the first coupling 71 is an outer coupling, and the second coupling 91 is an outer coupling; or the first coupling 71 is an outer coupling, and the second coupling 91 is an inner coupling.

[0057] In a preferred embodiment of the present application, Figure 2 , Figure 3 and Figure 4 As shown, a bearing 10 is provided between the first driving structure 7 and the second driving structure 9 .

[0058] By providing a bearing 10 between the first drive structure 7 and the second drive structure 9, the deflection amount of the first drive structure 7 during high-speed rotation can be reduced, and the rotation accuracy of the first drive structure 7 can be improved. At the same time, rotational friction between the first drive structure 7 and the second drive structure 9 caused by a large deflection amount due to the high-speed rotation of the first drive structure 7 can be avoided, thereby further reducing the source of noise, reducing noise, and extending the service life of the first drive structure 7 and the second drive structure 9.

[0059] It should be noted that the present application does not specifically limit the structure of the bearing 10, which may be a sliding bearing or a rolling bearing. In a preferred embodiment of the present application, the bearing 10 is a rolling bearing.

[0060] As a preferred embodiment of the present application, the transmission ratio i between the first driving structure 7 and the second driving structure 9 satisfies 3≤i≤10.

[0061] By setting the transmission ratio of the first drive structure 7 and the second drive structure 9 to i satisfying 3≤i≤10, the transmission ratios of the two groups of reduction mechanisms are reasonably configured, which can stabilize the load power of the motor 5 and help extend the service life of the motor 5. Avoid the situation where the transmission ratio of the first drive structure 7 and the second drive structure 9 is small, resulting in a small difference in the speed output by the first drive structure 7 and the second drive structure 9, which cannot meet the user's needs. At the same time, avoid the situation where the transmission ratio of the first drive structure 7 and the second drive structure 9 is large, resulting in the speed of the second drive structure 9 being too low, which makes it impossible to achieve the corresponding function.

[0062] As a preferred embodiment of the present application, the difference between the outer diameters of the first driving structure 7 and the second driving structure 9 is greater than 10 mm.

[0063] By setting the difference in outer diameters between the first drive structure 7 and the second drive structure 9 to be greater than 10 mm, a certain gap is created between the first drive structure 7 and the second drive structure 9, thereby avoiding interference between the first drive structure 7 and the second drive structure 9 when the food processor is working due to the close distance between the two, thereby ensuring the stability of the food processor. At the same time, the installation of the first drive structure 7 and the second drive structure 9 is facilitated, thereby improving assembly efficiency.

[0064] Of course, the processing parts also include the first processing part connected to the first drive structure 7. It should be noted that the present application does not specifically limit the structure of the first processing part and the second processing part 3. Preferably, since the first drive structure 7 has a relatively fast output speed, its output speed can be 1200rpm to 2000rmp, preferably, its output speed is 1200rpm to 1500rmp, so the first processing part can use a stirring knife, etc. to achieve high-speed cutting to prepare juice, soy milk, meat filling, etc. The second drive structure 9 has a relatively slow output speed, and its output speed is less than 300rpm, preferably 200rpm to 270rpm, so the second processing part 3 can use a dough knife, etc., which can be used for shredding, beating eggs, peeling, preparing dough, etc. It is flexible to switch and has a wide range of uses to meet the various needs of customers. As a preferred embodiment of the present application, Figure 2 , Figure 3 As shown, the output end surface of the second driving structure 9 is inserted into the groove 31 and connected to the second processing part 3 .

[0065] By inserting the output end of the second driving structure 9 into the groove and connecting it to the second processing part 3, it is avoided that the first driving structure 7 collides and rubs with the second processing part 3 due to a certain deflection during high-speed rotation, thereby affecting the normal use of the food processor.

[0066] As another preferred embodiment of the present application, Fig.11 , 12 As shown in FIG. 13 , the inner side wall of the groove 31 is provided with a step 32 , and the output end surface of the second driving structure 9 abuts against the step 32 to form a cavity 33 between the output end surface of the second driving structure 9 and the bottom surface of the groove 31 .

[0067] By setting a step 32 on the inner side wall of the groove 31, the output end face of the second drive structure 9 is in contact with the step 32, so as to define a cavity between the output end face of the second drive structure 9 and the bottom surface of the groove 31, thereby facilitating the definition of the size of the gap 34 between the output end of the first drive structure 7 and the bottom surface of the groove 31, so that the second processing part 3 can be quickly installed on the second drive structure 9, without repeatedly installing and adjusting the distance of the second drive structure 9 inserted into the groove 31 of the second processing part 3, so as to ensure that there is a gap 34 between the output end of the first drive structure 7 and the bottom surface of the groove 31, and to avoid direct contact between the top surface of the second processing part 3 and the second reduction mechanism housing 86 to cause friction damage, which affects the service life of the food processor, and generates rotation resistance, which affects the mixing efficiency and mixing effect of the second processing part 3. The gap between the top end face of the second processing part 3 and the second reduction mechanism housing 86 is larger than the gap between the output end face of the second drive structure 9 and the bottom surface of the groove 31, so as to facilitate the quick installation of the second processing part 3 on the second drive structure 9. In addition, an air-avoiding cavity 33 is formed between the end face of the output end of the second driving structure 9 and the bottom surface of the groove 31, thereby increasing the gap 34 between the output end of the first driving structure 7 and the bottom surface of the groove 31, that is, increasing the area of ​​the air isolation layer, further reducing the propagation speed of noise and increasing the loss during noise propagation, thereby improving the noise reduction effect.

[0068] It should be noted that the present application does not specifically limit the structure of the step 32. As a preferred embodiment of the present invention, Fig.13 As shown, the step 32 extends along the circumference of the groove 31 to form an annular step 32 .

[0069] By setting the step 32 to extend along the circumference of the groove 31 to form an annular step 32, it is further convenient to quickly position and install the second workpiece 3 and the second drive structure 9, and ensure that the gap 34 between the output end of the first drive structure 7 and the bottom surface of the groove 31 and the output end surface of the second drive structure 9 and the bottom surface of the groove 31 can form an effective cavity 33, thereby improving the noise reduction effect. At the same time, the circumferential annular step 32 helps the demoulding of the groove 31, improves production efficiency, and reduces production costs.

[0070] As a preferred implementation of the present application, Figure 6 As shown, the output end of the second driving structure 9 is provided with a mounting portion for the side wall of the groove 31 to be inserted into and connected to the second processing member 3. As a preferred embodiment of this embodiment, Figure 6 As shown, the mounting portion is an inner coupling 92 , wherein the inner coupling 92 is integrally formed with the second driving structure 9 .

[0071] By providing a mounting portion at the output end of the second driving structure 9 for the side wall of the groove 31 to be inserted so as to be connected to the second processed part 3, an air isolation layer is formed on the inner side of the groove 31, which reduces the noise directly transmitted to the outside through solid propagation, reduces the propagation speed of the noise and increases the loss during the noise propagation process, thereby achieving noise reduction; the outside of the groove 31 cooperates with the mounting portion for transmission, and the structure is reliable.

[0072] It should be noted that the present application does not specifically limit the relative relationship between the output end surface of the first driving structure 7 and the output end surface of the second driving structure 9, which can be any one of the following embodiments:

[0073] Example 1: Figure 5 As shown, in this embodiment, the output end face of the first drive structure 7 is flush with the output end face of the second drive structure 9 .

[0074] By making the output end face of the first driving structure 7 flush with the output end face of the second driving structure 9, it is helpful to reduce the size of the output end of the first driving structure 7, reduce the space occupied by the first driving structure 7, and help achieve miniaturization.

[0075] Example 2: Figure 7 As shown, in this embodiment, the output end surface of the first driving structure 7 protrudes beyond the output end surface of the second driving structure 9 .

[0076] By setting the output end face of the first drive structure 7 to a structure that protrudes from the output end face of the second drive structure 9, it is more convenient and quick to install the first workpiece. At the same time, the output end of the first drive structure 7 is protruding instead of concave, which can also prevent the user's fingers from entering the concave area and causing danger, thereby improving the user experience.

[0077] Embodiment 3: In this embodiment, the output end surface of the second driving structure 9 protrudes from the output end surface of the first driving structure 7 .

[0078] By setting the output end face of the second drive structure 9 to a structure that protrudes from the output end face of the first drive structure 7, the first processing part that is detachably connected to the first drive structure 7 can be quickly and accurately installed in the first drive structure, which can prevent the first processing part from swinging during the installation process and improve the installation efficiency.

[0079] As a preferred implementation of the present application, Figure 2 As shown, a first reduction mechanism 6 is provided between the first driving structure 7 and the motor shaft 5 .

[0080] By configuring the first drive structure 7 and the motor shaft 5 to be connected via the first reduction mechanism 6, the second drive structure 9 performs secondary reduction on the basis of the first reduction mechanism 6, thereby further improving the output torque of the second drive structure 9, enabling it to withstand a larger load, meet work scenarios that require a larger torque output, increase the functionality of the food processor, and enhance the user experience.

[0081] It should be noted that the present application does not specifically limit the structure of the first reduction mechanism 6. As a preferred embodiment of this embodiment, Figure 5 As shown, the first reduction mechanism 6 includes a first sun gear 61 , a first planetary gear 63 and a first planetary carrier 62 that cooperate with each other, and the first driving structure 7 and the first planetary carrier 62 are formed in one piece.

[0082] By configuring the first reduction mechanism 6 to include a first sun gear 61, a first planetary gear 63 and a first planetary bracket 62 that cooperate with each other, the structure of the first reduction mechanism 6 is made more compact, which helps to reduce the size of the entire machine, while improving the stability of the entire machine operation and enhancing the user experience.

[0083] It should be further explained that the present application does not specifically limit the relative relationship between the first driving structure 7 and the first planetary bracket 62, which can be any one of the following embodiments:

[0084] Example 1: Figure 5 As shown, in this embodiment, the first driving structure 7 and the first planetary carrier 62 are formed in one piece.

[0085] By setting the first driving structure 7 and the first planetary bracket 62 as an integrally formed structure, the transmission efficiency of the first driving structure 7 and the first planetary bracket 62 is improved, the loss of transmission energy is prevented, and the situation where the first structure and the first planetary bracket 62 slide relative to each other and cause transmission failure is avoided. In addition, the noise generated by the collision or friction between the two during the transmission process can be eliminated.

[0086] Example 2: Figure 8 As shown, in this embodiment, the first drive structure 7 is fixedly connected to the first planetary carrier 62 .

[0087] By setting the first drive structure 7 and the first planetary bracket 62 in a fixed connection, after a long period of use of the food processor, if the first drive structure 7 or the first planetary bracket 62 is severely worn, the first drive structure 7 or the first planetary bracket 62 can be replaced to achieve normal operation of the machine, thereby reducing maintenance costs.

[0088] It should be further explained that the present application does not specifically limit the structure of the second speed reduction mechanism 8, which can be any one of the following embodiments:

[0089] Example 1: Figure 5 As shown, in this embodiment, the second reduction mechanism 8 includes a second sun gear 81 arranged on the outer side wall of the first driving structure 7 , a second planetary gear 83 matched with the second sun gear 81 , and a second planetary carrier 82 .

[0090] By configuring the second reduction mechanism 8 to include a second sun gear 81 disposed on the outer wall of the first drive structure 7 and a second planetary gear 83 and a second planetary bracket 82 cooperating with the second sun gear 81, the structure of the second reduction mechanism 8 is made more compact, further reducing the size of the entire machine, while improving the stability of the operation of the entire machine and enhancing the user experience.

[0091] Example 2: Fig. 9 , Fig.10 As shown, in this embodiment, the second reduction mechanism 8 is of NW configuration, the upper planetary gear 84 meshes with the second sun gear 81, and the lower planetary gear 85 meshes with the secondary inner ring gear. The diameter of the upper planetary gear 84 is larger than the diameter of the lower planetary gear 85. The two layers of gears are respectively meshed with different mechanisms, which reduces the number of cycles of gear meshing and can extend the service life of the gears. Secondly, its size is more compact, and the diameter of the whole machine can be smaller, which improves the consumer's holding experience.

[0092] It should be further explained that the present application does not specifically limit the relative relationship between the second planetary bracket 82 and the second driving structure 9, which can be any one of the following embodiments:

[0093] Example 1: Figure 4 , Figure 5 As shown, in this embodiment, the second planetary carrier 82 is formed integrally with the second driving structure 9 .

[0094] By setting the second planetary bracket 82 and the second driving structure 9 as an integrally formed structure, the transmission efficiency of the second driving structure 9 and the first planetary bracket 62 is improved, the loss of transmission energy is prevented, and the second driving structure 9 and the first planetary bracket 62 are prevented from sliding relative to each other, resulting in transmission failure. In addition, the noise generated by collision or friction between the two during the transmission process can be eliminated.

[0095] Example 2: Figure 8 As shown, in this embodiment, the second planet carrier 82 is fixedly connected to the second drive structure 9 .

[0096] By setting the second planetary bracket 82 and the second drive structure 9 as a fixedly connected structure, after a long period of use of the food processor, if the second drive structure 9 or the second planetary bracket 82 is severely worn, the second drive structure 9 or the second planetary bracket 82 can be replaced to achieve normal operation of the machine, thereby reducing maintenance costs.

[0097] It should be noted that the present application does not specifically limit the relationship between the second sun gear and the first driving structure. The second sun gear 81 can be sleeved and fixed on the outer peripheral wall of the first driving structure 7. Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the second sun gear 81 and the first driving structure 7 may be directly integrally formed, such as Figure 8 As shown, no further description is given here.

[0098] In another preferred embodiment of the present application, the second driving structure 9 is connected to the first reduction mechanism 6 via a second reduction mechanism 8, and the second reduction mechanism 8 is transmission-connected to the first reduction mechanism 6 via a gear transmission structure.

[0099] It should be noted that the present application does not specifically limit the structure of the above-mentioned gear transmission structure, and the gear transmission structure can achieve the transmission connection between the first reduction mechanism 6 and the second reduction mechanism 8.

[0100] In another preferred embodiment of the present application, the first drive structure 7 is directly connected to the motor shaft 5, and the first drive structure 7 is connected to the second drive structure 9 via the second reduction mechanism 8. The second drive structure 9 is connected to the first drive structure 7 via the second reduction mechanism 8, so that the output speeds of the first drive structure 7 and the second drive structure 9 are different, which can adapt to different scenarios, meet different needs of users, realize multi-purpose use of one machine, and enhance user experience.

[0101] The technical solution protected by the present invention is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any one embodiment with the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the present invention has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present invention. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A noise-reducing food processor, comprising a machine body, a mixing cup and a processing piece arranged in the mixing cup, wherein a motor assembly for driving the processing piece is arranged in the machine body, and the motor assembly comprises a motor shaft, a first driving structure connected to the motor shaft and a second driving structure coaxially sleeved on the outer periphery of the first driving structure. It is characterized in that The processing part includes a second processing part detachably connected to the output end of the second driving structure, a groove is provided at the mounting end of the second processing part, the output end of the first driving structure is provided in the projection area of ​​the bottom surface of the groove, and there is a gap between the output end of the first driving structure and the bottom surface of the groove, the output end of the second driving structure is inserted into the groove and connected to the second processing part, and a cavity is formed between the end surface of the output end of the second driving structure and the bottom surface of the groove.

2. A noise-reducing food processing machine according to claim 1, It is characterized in that The inner side wall of the groove is provided with a step, and the output end surface of the second driving structure abuts against the step.

3. A noise-reducing food processing machine according to claim 2, It is characterized in that The step extends along the circumference of the groove to form an annular step.

4. A noise-reducing food processing machine according to claim 1, It is characterized in that An installation portion is provided in the output end of the second driving structure for the side wall of the groove to be inserted into so as to be connected with the second processing piece.

5. A noise-reducing food processing machine according to any one of claims 1 to 4, It is characterized in that The output end surface of the first drive structure is flush with the output end surface of the second drive structure, or the output end surface of the first drive structure protrudes from the output end surface of the second drive structure, or the output end surface of the second drive structure protrudes from the output end surface of the first drive structure.

6. A noise-reducing food processing machine according to any one of claims 1 to 4, It is characterized in that A first reduction mechanism is provided between the first driving structure and the motor shaft, and the first driving structure is connected to the second driving structure via a second reduction mechanism.

7. A noise-reducing food processing machine according to claim 6, It is characterized in that The first reduction mechanism includes a first sun gear, a first planetary gear and a first planetary carrier that cooperate with each other, and the first driving structure is integrally formed with or fixedly connected to the first planetary carrier.

8. A noise-reducing food processing machine according to claim 7, It is characterized in that The second reduction mechanism includes a second sun gear disposed on the outer side wall of the first driving structure, a second planetary gear matched with the second sun gear, and a second planetary carrier.

9. A noise-reducing food processing machine according to claim 8, It is characterized in that The second planetary support is integrally formed with or fixedly connected to the second driving structure.

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