Cutter and stirring device

Abstract

The cutter comprises a shell, a driving shaft, a movable shaft, a lifting frame, a cutter and a first transmission assembly, a power piece is connected with the driving shaft, the shell is connected with a bottom cover, and the driving shaft is rotationally arranged in the shell; the movable shaft is in sliding connection with the driving shaft in the axial direction of the driving shaft; the lifting frame sleeves the movable shaft and is in sliding connection with the shell; the end, extending out of the shell, of the movable shaft is connected with a cutter which is rotationally connected with the lifting frame. The first transmission assembly is connected with the lifting frame and used for driving the lifting frame to slide in the axial direction. Compared with the prior art, the movable shaft, the lifting frame and the first transmission assembly are arranged, and the movable shaft is slidably connected with the driving shaft, so that the driving shaft drives the movable shaft to rotate when rotating, then the cutter is driven to rotate, and the cutting function is achieved; the first transmission assembly is connected with the lifting frame, power of the driving shaft or the power piece is transmitted to the lifting frame, and the cutter lifting function is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a cutting tool and a mixing device. Background Technology

[0002] A mixer is an industrial device or kitchen appliance that uses a rotating agitator to uniformly mix and stir various materials. During the mixing process, a motor drives the blades to rotate rapidly, achieving the functions of cutting, shredding, or grinding food.

[0003] In existing mixers, materials undergo complex flow patterns within the container during mixing. Ordinary mixing blades may be fixed at the bottom or corners of the container, creating dead zones and preventing some materials from being fully mixed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present invention provides a cutting tool and a stirring device that can achieve lifting and stirring, thereby improving the uniformity of stirring.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cutting tool includes a housing, a drive shaft, a movable shaft, a lifting frame, a cutting blade, and a first transmission assembly. The drive shaft is rotatably disposed within the housing and is used to connect to a power component. The movable shaft is slidably connected to the drive shaft along its axial direction. The lifting frame is sleeved outside the movable shaft and slidably connected to the housing. A cutting blade is connected to one end of the movable shaft extending out of the housing, and the cutting blade and the lifting frame are rotatably connected. The first transmission assembly is used to connect to the power component or the drive shaft, and is connected to the lifting frame, and is used to drive the lifting frame to slide along its axial direction.

[0007] In one embodiment, the first transmission assembly includes a first rotating frame and a first gear. The first rotating frame is rotatably disposed within the housing, and the first gear is rotatably connected to the first rotating frame. The first gear meshes with the housing and with the drive shaft. The first rotating frame includes a first drive end, which is disposed between the movable shaft and the lifting frame. The lifting frame is threadedly connected to the first drive end.

[0008] In one embodiment, the cutting tool includes an anti-rotation pin, the lifting frame has a sliding part, the outer shell has a sliding groove, the sliding part and the sliding groove are slidably connected, the first driving end has a thread on the side facing the lifting frame, and the anti-rotation pin passes through the sliding part and is inserted into the thread.

[0009] As one of the embodiments, the cutter comprises a second transmission assembly for connecting the power element, the second transmission assembly is connected with the driving shaft for driving the driving shaft to rotate.

[0010] As one of the embodiments, the second transmission assembly comprises a second rotating frame and a second gear, the second rotating frame is rotatably connected with the shell, the second gear is rotatably connected with the second rotating frame, the second gear is engaged with the shell, and the second gear is used for connecting with the power element; the driving shaft is connected with the second rotating frame.

[0011] As one of the embodiments, the second rotating frame is connected with the first transmission assembly.

[0012] As one of the embodiments, the first transmission assembly comprises a first rotating frame and a first gear, the first rotating frame is rotatably arranged in the shell, the first gear is rotatably connected with the first rotating frame respectively, and the first gear is engaged with the shell; the second rotating frame comprises a second driving end, and the second driving end is engaged with the first gear.

[0013] As one of the embodiments, the transmission ratio of the second driving end and the first gear is greater than 1.

[0014] As one of the embodiments, the driving shaft is connected with a limiting block, the movable shaft is provided with a limiting slot, and the limiting block and the limiting slot are slidably connected.

[0015] The utility model still has adopted the following technical scheme: a stirring device, including the cutter and power element and bottom cover that any one embodiment described above, power element with driving shaft is connected, shell with bottom cover is connected.

[0016] The utility model discloses a beneficial effect lies in: the utility model provides a kind of cutter and stirring device, cutter includes shell, drive shaft, movable shaft, lifting frame, cutter and first transmission component, power element and drive shaft connection, shell and bottom cover connection, drive shaft rotation setting in shell, drive shaft is used for connecting power element;Movable shaft is slidably connected with drive shaft along the axial direction of drive shaft;Lifting frame is sleeved in movable shaft outer and is slidably connected with shell;The end of movable shaft that projects from shell is connected with cutter, and cutter and lifting frame are rotatably connected;First transmission component is used for connecting power element or drive shaft, and first transmission component is connected with lifting frame, and is used to drive lifting frame to slide along axial direction.The utility model sets up movable shaft, lifting frame and first transmission component compared to prior art, movable shaft and drive shaft are slidably connected, so as to drive drive shaft to rotate and drive movable shaft to rotate in turn, and then drive cutter to rotate, realize the function of cutting;Cutter and lifting frame are rotatably connected, first transmission component is connected with lifting frame, and the power of drive shaft or power element is transmitted to lifting frame, to drive lifting frame to move along the axial direction of shell, that is, lifting frame drives cutter to move along the axial direction of shell, realizes the function of cutter lifting.The stirring device of this cutter, cutter can be lifted and cut during stirring process, can constantly change the action area of stirring, so that food in each position in cup body can be fully stirred, to improve the uniformity of stirring. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure of the utility model shows a cutter is shown in schematic diagram;

[0018] Figure 2 The structure of the utility model shows a cutter is shown in schematic diagram;

[0019] Figure 3 The structure of the utility model shows a cutter is shown in schematic diagram;

[0020] Figure 4 The structure of the utility model shows a cutter is shown in schematic diagram;

[0021] Figure 5 The structure of the utility model shows a cutter is shown in schematic diagram.

[0022] Reference signs: 1, shell;11, sliding groove;2, drive shaft;3, movable shaft;31, limit groove;4, lifting frame;41, sliding part;5, cutter;6, first transmission component;61, first rotating frame;62, first gear;611, first drive end;7, rotation stop pin;8, second transmission component;81, second rotating frame;82, second gear;811, second drive end;9, limit block;10, power element;20, bottom cover. DETAILED DESCRIPTION

[0023] In the utility model, the terms "arrange", "have", "connect" should be understood in a broad sense. For example, it can be fixed connection, detachable connection, or integral structure, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, or internal communication between two devices, elements or components. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] The orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "at least two" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0026] Also, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For ordinary skilled in the art, the specific meaning of these terms in the utility model can be understood according to the specific circumstances.

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0028] Referring to Figure 1 And Figure 2The embodiment of the application provides a stirring device, which comprises a cutter, a power component 10 and a bottom cover 20, the cutter comprises a shell 1, a driving shaft 2, a movable shaft 3, a lifting frame 4, a cutter blade 5 and a first transmission assembly 6, the power component 10 is connected with the driving shaft 2, the shell 1 is connected with the bottom cover 20, the driving shaft 2 is rotationally arranged in the shell 1, and the driving shaft 2 is used for being connected with the power component 10; the movable shaft 3 is slidably connected with the driving shaft 2 in the axial direction of the driving shaft 2; the lifting frame 4 is sleeved outside the movable shaft 3 and is slidably connected with the shell 1; one end of the movable shaft 3, which extends out of the shell 1, is connected with the cutter blade 5, and the cutter blade 5 is rotationally connected with the lifting frame 4; the first transmission assembly 6 is used for being connected with the power component 10 or the driving shaft 2, the first transmission assembly 6 is connected with the lifting frame 4 and is used for driving the lifting frame 4 to slide in the axial direction.

[0029] In actual application, the stirring device further comprises a cup body (not shown in the figure), the cutter is installed in the cup body, the cutter comprises the shell 1, the shell 1 and the bottom cover 20 are connected to form an assembly space, the driving shaft 2, the movable shaft 3, the lifting frame 4, the cutter blade 5 and the first transmission assembly 6 are all installed in the assembly space, the power component 10 is connected with the driving shaft 2 of the cutter, so as to drive the driving shaft 2 to rotate, the movable shaft 3 is slidably connected with the driving shaft 2, the movable shaft 3 can slide in the axial direction of the driving shaft 2, the lifting frame 4 is slidably connected with the shell 1 and is sleeved outside the movable shaft 3, the lifting frame 4 can slide in the axial direction of the shell 1, one end of the movable shaft 3, which extends out of the shell 1, is connected with the cutter blade 5, and the cutter blade 5 is rotationally connected with the lifting frame 4, one end of the movable shaft 3, which extends out of the shell 1, is formed with a stepped portion in the circumferential direction, the lifting frame 4 is partially overlapped with the stepped portion, and the cutter blade 5 is overlapped with the lifting frame 4, so that the movable shaft 3 and the cutter blade 5 clamp the lifting frame 4 from the upper side and the lower side, the first transmission assembly 6 is connected with the lifting frame 4, so as to drive the lifting frame 4 to slide in the axial direction of the shell 1, the first transmission assembly 6 can be connected with the driving shaft 2, when the power component 10 drives the driving shaft 2 to rotate, the driving shaft 2 drives the first transmission assembly 6 to move, and then the first transmission assembly 6 drives the lifting frame 4 to slide, the lifting frame 4 drives the cutter blade 5 to slide, and the movable shaft 3 is connected with the cutter blade 5, so that the cutter blade 5 rotates with the movable shaft 3, so that the cutter blade 5 can rotate and move at the same time, and the function of the cutter blade 5 to cut and lift is realized.

[0030] Compared with the prior art, the application sets the movable shaft 3, the lifting frame 4 and the first transmission assembly 6, the movable shaft 3 and the driving shaft 2 are slidingly connected, so as to drive the movable shaft 3 to rotate when the driving shaft 2 rotates, and then drive the cutter 5 to rotate, realizing the cutting function; the cutter 5 and the lifting frame 4 are rotationally connected, the first transmission assembly 6 and the lifting frame 4 are connected, and the power of the driving shaft 2 or the power member 10 is transmitted to the lifting frame 4, so as to drive the lifting frame 4 to move along the axial direction of the shell 1, that is, the lifting frame 4 drives the cutter 5 to move along the axial direction of the shell 1, realizing the function of lifting the cutter 5. The stirring device using the cutter can cut and lift the cutter 5 during stirring, can continuously change the stirring area, and can fully stir the food at each position in the cup body, thereby improving the uniformity of stirring.

[0031] It should be noted that the axial direction of the shell 1 and the axial direction of the driving shaft 2 are the same direction, and the power member 10 can adopt a motor or a motor.

[0032] Referring to Figure 3 The first transmission assembly 6 includes a first rotating frame 61 and a first gear 62, the first rotating frame 61 is rotationally arranged in the shell 1, the first gear 62 is rotationally connected to the first rotating frame 61, the first gear 62 is engaged with the shell 1, and the first gear 62 is engaged with the driving shaft 2; the first rotating frame 61 includes a first driving end 611, the first driving end 611 is arranged between the movable shaft 3 and the lifting frame 4, and the lifting frame 4 is threadedly connected with the first driving end 611.

[0033] In actual application, the first rotating frame 61 is rotationally arranged in the shell 1, the first rotating frame 61 includes a sleeve structure extending towards the cutter 5, the sleeve structure is the first driving end 611, the first driving end 611 is sleeved on the outer periphery of the movable shaft 3, the lifting frame 4 is sleeved on the outer periphery of the first driving end 611, and the first driving end 611 and the lifting frame 4 are threadedly connected, so that when the first rotating frame 61 rotates, the first driving end 611 rotates to drive the lifting frame 4 to move along the axial direction.

[0034] In order to realize the rotation of the first rotating frame 61, the first gear 62 is rotatably connected to the first rotating frame 61 at two opposite ends of the first gear 62 along the axial direction, the inner side of the shell 1 is provided with a toothed portion, the first gear 62 is engaged with the shell 1, and the outer side of the drive shaft 2 is provided with a toothed portion, the first gear 62 is engaged with the drive shaft 2, when the power member 10 drives the drive shaft 2 to rotate, the drive shaft 2 drives the first gear 62 to rotate, because the first gear 62 is engaged with the shell 1, the first gear 62 moves around the circumference of the shell 1, and then the first gear 62 drives the first rotating frame 61 to rotate, realizing the function of the first rotating frame 61 driving the lifting frame 4 to lift. By adopting this structure, because the time for the first gear 62 to rotate one circle around the shell 1 is much longer than the time for the drive shaft 2 to rotate one circle, the rotation speed of the first rotating frame 61 is less than the rotation speed of the drive shaft 2, realizing the function of speed reduction, so that the lifting speed of the cutter 5 is less than the cutting speed, and if the lifting speed of the cutter 5 is too fast, the blade will bear a large impact load when cutting into and out of the food, and the impact will aggravate the wear of the blade, reducing the service life of the blade. When the lifting speed of the cutter 5 is less than the cutting speed, the blade can cut into and out of the food relatively smoothly, reducing the impact and friction between the blade and the food, thereby prolonging the service life of the blade.

[0035] It should be noted that the transmission ratio reflects the relationship between the rotation speeds of the driving wheel and the driven wheel, and when the transmission ratio is greater than 1, it indicates that the rotation speed of the driving wheel is higher than that of the driven wheel, realizing the function of speed reduction.

[0036] Referring to Figure 4 , the cutter further comprises a rotation-stopping pin 7, the lifting frame 4 is provided with a sliding portion 41, the shell 1 is provided with a sliding groove 11, the sliding portion 41 and the sliding groove 11 are slidably connected, and the first driving end 611 is provided with a thread on the side facing the lifting frame 4.

[0037] In actual application, the lifting frame 4 is provided with the sliding portion 41, the shell 1 is provided with the sliding groove 11, the sliding portion 41 and the sliding groove 11 are slidably connected, the outer periphery of the first driving end 611, that is, the side facing the lifting frame 4, is provided with a thread, and the rotation-stopping pin 7 passes through the lifting frame 4 and is inserted into the thread. Specifically, the rotation-stopping pin 7 can pass through the sliding portion 41 and then be inserted into the thread, so that the sliding portion 41 plays a role in fixing the rotation-stopping pin 7, avoiding the rotation-stopping pin 7 from falling off. Through the cooperation of the rotation-stopping pin 7 and the thread, when the first rotating frame 61 rotates, the rotation-stopping pin 7 rotates along the track of the thread, and then drives the lifting frame 4 to slide in the sliding groove 11, realizing the lifting function.

[0038] Referring again to Figure 4 , the cutter further comprises a second transmission assembly 8, the second transmission assembly 8 is used for connecting the power member 10, the second transmission assembly 8 is connected with the drive shaft 2, and is used for driving the drive shaft 2 to rotate.

[0039] In practical application, the power element 10 drives the driving shaft 2 to rotate through the second transmission assembly 8. Compared with the power element 10 directly connected with the driving shaft 2, the second transmission assembly 8 can realize the function of speed reduction, so as to avoid the driving shaft 2 rotating too fast, which leads to the cutting knife 5 rotating too fast and accelerating the wear of the cutting knife 5.

[0040] Referring to Figs. 1 and 2 again, Figure 4 and Figure 5 the second transmission assembly 8 comprises a second rotating frame 81 and a second gear 82. The second rotating frame 81 is rotatably connected to the shell 1, and the second gear 82 is rotatably connected to the second rotating frame 81. The second gear 82 is engaged with the shell 1, and the second gear 82 is used to be connected with the power element 10. The driving shaft 2 is connected with the second rotating frame 81.

[0041] In practical application, the second rotating frame 81 is rotatably arranged in the shell 1. Specifically, the second rotating frame 81 can be rotatably connected with the bottom cover 20, and the first rotating frame 61 can be rotatably connected to one side of the second rotating frame 81 close to the driving shaft 2. The driving end of the power element 10 extends into the second rotating frame 81 and is engaged with the second gear 82. When the power element 10 is started, the power element 10 drives the second gear 82 to rotate. Since the second gear 82 is engaged with the shell 1, the second gear 82 rotates circumferentially around the shell 1, thereby driving the second rotating frame 81 to rotate. The second rotating frame 81 drives the driving shaft 2 to rotate, and the driving shaft 2 drives the cutting knife 5 to rotate, thereby realizing cutting.

[0042] Referring to Figs. 1 and 2 again, Figure 4 the second rotating frame 81 comprises a second driving end 811, and the second driving end 811 is engaged with the first gear 62.

[0043] In practical application, the second rotating frame 81 comprises the second driving end 811 extending towards the driving shaft 2. The second driving end 811 is fixedly connected with the driving shaft 2 and is provided with a tooth portion along the outer periphery thereof. The second driving end 811 is engaged with the first gear 62 through the tooth portion, so as to drive the first gear 62 to rotate when the second rotating frame 81 rotates. When the power element 10 is started, the power element 10 drives the second gear 82 to rotate. Since the second gear 82 is engaged with the shell 1, the second gear 82 rotates circumferentially around the shell 1, thereby driving the second rotating frame 81 to rotate. The second rotating frame 81 drives the driving shaft 2 to rotate, and the driving shaft 2 drives the cutting knife 5 to rotate, thereby realizing cutting. The second rotating frame 81 drives the first gear 62 to rotate through the second driving end 811. The first gear 62 drives the first rotating frame 61 to rotate through being engaged with the shell 1. The first rotating frame 61 drives the lifting frame 4 to lift through the first driving end 611, thereby realizing the lifting function of the cutting knife 5.

[0044] Referring to Figs. 1 and 2 again, Figure 5The second rotating frame 81 is connected with the first transmission assembly 6. Specifically, the first rotating frame 61 can be rotatably connected to one side of the second rotating frame 81 close to the driving shaft 2, and the second rotating frame 81 provides a position for mounting the first rotating frame 61. Meanwhile, the second driving end 811 of the second rotating frame 81 is engaged with the first gear 62, so as to connect the second transmission assembly 8 with the first transmission assembly 6, and facilitate the second transmission assembly 8 to transmit the power of the power member 10 to the first transmission assembly 6.

[0045] In an embodiment, the transmission ratio of the second driving end 811 and the first gear 62 is greater than 1. In this way, the transmission ratio of the second driving end 811 and the first gear 62 is greater than 1, the rotating speed of the first gear 62 is less than the rotating speed of the second driving end 811, and since the second driving end 811 is connected with the driving shaft 2, the rotating speed of the second driving end 811 is the rotating speed of the driving shaft 2, which is greater than the rotating speed of the first gear 62. Since the rotating speed of the first gear 62 is substantially the same as the rotating speed of the first rotating frame 61, the first rotating frame 61 drives the lifting frame 4 to lift at a slower speed, so that the lifting speed of the cutting knife 5 is less than the cutting speed.

[0046] Again referring to Figure 4 The driving shaft 2 is connected with a limiting block 9, and the movable shaft 3 is provided with a limiting groove 31, and the limiting block 9 and the limiting groove 31 are in sliding connection. In actual application, in order to achieve the sliding connection between the movable shaft 3 and the driving shaft 2, the driving shaft 2 is provided with the limiting block 9, and the limiting block 9 and the limiting groove 31 of the movable shaft 3 are in sliding connection. In this way, when the driving shaft 2 rotates, the driving shaft 2 drives the movable shaft 3 to rotate through the limiting cooperation of the limiting block 9 and the limiting groove 31, and the movable shaft 3 can slide without affecting the lifting of the cutting knife 5.

[0047] It should be noted that the limiting groove 31 and the sliding groove 11 both extend along the axial direction of the outer shell 1, that is, the moving direction of the lifting frame 4. The first transmission assembly 6 and the second transmission assembly 8 can both adopt a planetary gear structure. For example, in the first transmission assembly 6, the tooth portion provided on the outer side of the driving shaft 2 corresponds to the sun gear in the planetary gear structure, the first gear 62 corresponds to the planet gear in the planetary gear structure, and the outer shell 1 corresponds to the ring gear in the planetary gear structure. Similarly, in the second transmission assembly 8, the driving end of the power member 10 corresponds to the sun gear, the second gear 82 corresponds to the planet gear, and the outer shell 1 corresponds to the ring gear.

[0048] Different from the prior art, the embodiment of the application provides a cutter and a stirring device, the cutter comprising a shell 1, a driving shaft 2, a movable shaft 3, a lifting frame 4, a cutter 5 and a first transmission assembly 6, a power member 10 and the driving shaft 2 being connected, the shell 1 and a bottom cover 20 being connected, the driving shaft 2 being rotationally arranged in the shell 1, the driving shaft 2 being used for connecting the power member 10; the movable shaft 3 being slidably connected with the driving shaft 2 along the axial direction of the driving shaft 2; the lifting frame 4 being sleeved outside the movable shaft 3 and being slidably connected with the shell 1; one end of the movable shaft 3 extending out of the shell 1 being connected with the cutter 5, the cutter 5 and the lifting frame 4 being rotationally connected; the first transmission assembly 6 being used for connecting the power member 10 or the driving shaft 2, the first transmission assembly 6 and the lifting frame 4 being connected and being used for driving the lifting frame 4 to slide along the axial direction. Compared with the prior art, the application sets the movable shaft 3, the lifting frame 4 and the first transmission assembly 6, the movable shaft 3 and the driving shaft 2 being slidably connected, so that the driving shaft 2 can drive the movable shaft 3 to rotate when the driving shaft 2 rotates, and then drive the cutter 5 to rotate, realizing the function of cutting; the cutter 5 and the lifting frame 4 being rotationally connected, the first transmission assembly 6 and the lifting frame 4 being connected, the power of the driving shaft 2 or the power member 10 being transmitted to the lifting frame 4, so as to drive the lifting frame 4 to move along the axial direction of the shell 1, that is, the lifting frame 4 drives the cutter 5 to move along the axial direction of the shell 1, realizing the function of lifting the cutter 5. The stirring device adopting the cutter can cut and lift the cutter 5 during stirring, can continuously change the stirring area, and can fully stir the food at each position in the cup body, thereby improving the uniformity of stirring.

[0049] The above merely describes the specific embodiments of the application, and it should be noted that, for those skilled in the art, without departing from the principles of the application, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the application.

Claims

1. A cutting tool, characterized by The utility model relates to a cutting tool, including: A shell (1); A drive shaft (2) is rotationally arranged in the shell (1), and the drive shaft (2) is used to be connected with a power element (10); A movable shaft (3) is slidably connected with the drive shaft (2) along the axial direction of the drive shaft (2); A lifting frame (4) is sleeved on the movable shaft (3) and is slidably connected with the shell (1); A cutter (5) is connected with one end of the movable shaft (3) that protrudes from the shell (1), and the cutter (5) is rotationally connected with the lifting frame (4); A first transmission assembly (6) is used to be connected with the power element (10) or the drive shaft (2), the first transmission assembly (6) is connected with the lifting frame (4) and is used to drive the lifting frame (4) to slide along the axial direction.

2. The knife of claim 1, wherein The first transmission assembly (6) comprises a first rotating frame (61) and a first gear (62), the first rotating frame (61) is rotationally arranged in the shell (1), the first gear (62) is rotationally connected with the first rotating frame (61), the first gear (62) is meshed with the shell (1), and the first gear (62) is meshed with the drive shaft (2); The first rotating frame (61) comprises a first driving end (611), the first driving end (611) is arranged between the movable shaft (3) and the lifting frame (4), and the lifting frame (4) is threadedly connected with the first driving end (611).

3. The tool according to claim 2, characterized in that The cutter comprises a rotation-stopping pin (7), the lifting frame (4) is provided with a sliding part (41), the shell (1) is provided with a sliding groove (11), the sliding part (41) is slidably connected with the sliding groove (11), one side of the first driving end (611) towards the lifting frame (4) is provided with a thread, and the rotation-stopping pin (7) is inserted into the thread through the sliding part (41).

4. The knife of claim 1, wherein, The cutter comprises a second transmission assembly (8), the second transmission assembly (8) is used to be connected with the power element (10), the second transmission assembly (8) is connected with the drive shaft (2) and is used to drive the drive shaft (2) to rotate.

5. The tool of claim 4 wherein, The second transmission assembly (8) comprises a second rotating frame (81) and a second gear (83), the second rotating frame (81) is rotationally connected with the shell (1), the second gear (83) is rotationally connected with the second rotating frame (81), the second gear (83) is meshed with the shell (1), and the second gear (83) is used to be connected with the power element (10); and the drive shaft (2) is connected with the second rotating frame (81).

6. The tool of claim 5 wherein, The second rotating frame (81) is connected with the first transmission assembly (6).

7. The knife of claim 5, wherein, The first transmission assembly (6) comprises a first rotating frame (61) and a first gear (62), the first rotating frame (61) is rotatably arranged in the shell (1), the first gear (62) is rotatably connected to the first rotating frame (61) respectively, and the first gear (62) is engaged with the shell (1); the second rotating frame (81) comprises a second driving end (811), and the second driving end (811) is engaged with the first gear (62).

8. The tool of claim 7 wherein, The transmission ratio of the second driving end (811) and the first gear (62) is greater than 1.

9. The knife of claim 1, wherein, The driving shaft (2) is connected with a limiting block (9), the movable shaft (3) is provided with a limiting groove (31), and the limiting block (9) and the limiting groove (31) are in sliding connection.

10. A stirring device, characterized by The tool comprises the tool according to any one of claims 1-9, a power element (10) and a bottom cover (20), the power element (10) is connected with the driving shaft (2), and the shell (1) is fixedly connected with the bottom cover (20).

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