A hand blender

Abstract

The utility model relates to the technical field of mixer, especially a hand-held mixer, including host computer, be equipped with driving arrangement in the host computer, stirring rod subassembly, stirring rod subassembly can be dismantled and installed on the host computer, and the axle of stirring rod subassembly is equipped with the central shaft, and the central shaft drives rotation through driving arrangement, knife subassembly, the knife subassembly drives rotation through the central shaft, and the knife subassembly includes stirring blade and sword axle, and stirring blade is fixed on sword axle coaxially, and the axle of sword axle and the axle of central shaft are not on the same straight line, when stirring, the central shaft drives rotation through driving arrangement, and sword axle revolves around the axle of central shaft and moves, and stirring blade revolves around the axle of sword axle and moves. Set up like this, make stirring blade can revolve and can revolve in, and this kind of operation mode makes the space that stirring blade sweeps when running more, and carries out all -round 3D cutting to food, changes the position of vortex in the stirring head, makes food material more can be fully stirred and cuts, improves cutting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, and specifically to a handheld mixer. Background Technology

[0002] Currently, the blade assembly of traditional handheld blenders typically uses a rotating blade axis to cut food. This method of cutting ingredients is limited, and large food particles are prone to getting stuck in the blades, resulting in low cutting efficiency. Furthermore, it tends to generate significant suction during blending, making it difficult for users to operate and providing a poor user experience.

[0003] For example, the utility model patent with publication number CN211704344U discloses an integrated handheld mixer, which includes an integrally formed handheld housing and a mixing housing. The mixing housing is provided with a blade assembly, which includes a mixing shaft and mixing blades. When this prior art is working, its mixing blades rotate around the mixing shaft to cut food. Its cutting method for food is singular, and it is easy to get the mixing blades stuck when cutting large food particles, resulting in low cutting efficiency.

[0004] Therefore, there is still room for improvement and development in existing technologies. Utility Model Content

[0005] To address the problem that existing technologies use a rotating blade around a stirring shaft to cut food, which results in a limited cutting method and the blades easily getting stuck when cutting large food particles, leading to low cutting efficiency, this invention provides a handheld mixer.

[0006] To achieve the above objectives, the technical solution applied in this utility model is as follows:

[0007] A handheld blender includes a main unit with a drive unit inside; a stirring rod assembly detachably mounted on the main unit, the stirring rod assembly having a central shaft at its center, the central shaft being driven to rotate by the drive unit; and a blade assembly driven to rotate by the central shaft, the blade assembly including stirring blades and a blade shaft, the stirring blades being coaxially fixed on the blade shaft, the axis of the blade shaft and the axis of the central shaft not being on the same straight line; during blending, the central shaft is driven to rotate by the drive unit, the blade shaft revolves around the axis of the central shaft, and the stirring blades rotate around the axis of the blade shaft. This configuration allows the stirring blades to both rotate and revolve internally, resulting in a larger area swept by the stirring blades during operation, enabling 3D cutting of food in all directions, changing the position of the vortex within the blending head, allowing for more thorough blending and cutting of the ingredients, and improving cutting efficiency.

[0008] According to the above scheme, the axis of the cutter shaft and the axis of the central shaft are not on the same straight line.

[0009] According to the above scheme, there are one or more blade assemblies; when there are multiple blade assemblies, the multiple blade assemblies are evenly surrounded on the outer periphery of the central shaft. During stirring, the blade shafts of the multiple blade assemblies simultaneously revolve around the axis of the central shaft, and the stirring blade of each blade assembly simultaneously rotates around the axis of its own blade shaft.

[0010] According to the above scheme, the stirring rod assembly includes a gearbox assembly one, a transmission shaft sleeve, and a gearbox assembly two. Gearbox assembly one is located in the upper part of the stirring rod assembly, and gearbox assembly two is located in the lower part of the stirring rod assembly. The upper end of the transmission shaft sleeve is fixedly connected to gearbox assembly one, and the lower end of the transmission shaft sleeve is fixedly connected to gearbox assembly two. The cutter shaft is rotatably mounted on gearbox assembly two. Gearbox assembly one and the cutter shaft are driven to rotate synchronously through a central shaft. With this configuration, during stirring, the central shaft drives gearbox assembly one to rotate, gearbox assembly one then drives the transmission shaft sleeve to rotate, and the transmission shaft sleeve then drives gearbox assembly two to rotate. Simultaneously, as gearbox assembly two rotates, the central shaft also drives the cutter shaft to rotate synchronously.

[0011] According to the above scheme, the upper end of the central shaft is driven and connected to the drive device, and the lower end of the central shaft passes through gearbox assembly one and transmission shaft sleeve and is driven and connected to the cutter shaft on gearbox assembly two. Gearbox assembly one, transmission shaft sleeve, and gearbox assembly two are respectively installed coaxially with the central shaft. With this configuration, during stirring, gearbox assembly one, transmission shaft sleeve, and gearbox assembly two rotate simultaneously around the axis of the central shaft. Since the axis of the cutter shaft and the axis of the central shaft are not on the same straight line, the cutter shaft revolves around the axis of the central shaft when it rotates, while the stirring blade rotates around the axis of the cutter shaft.

[0012] According to the above scheme, the gearbox assembly includes an input gear, a planetary gear set, and an external gear ring. The input gear is fixed on the central shaft, and its external teeth mesh with the internal teeth of the planetary gear set. The external teeth of the planetary gear set mesh with the internal teeth of the external gear ring. The external gear ring is fixed to the upper part of the stirring rod assembly. The planetary gear set is provided with an output interface, and the upper end of the transmission shaft sleeve is fixedly connected to the output interface. With this configuration, during stirring, the drive device drives the central shaft and the input gear to rotate at high speed. After the input gear is decelerated by the planetary gear set and the external gear ring, it drives the transmission shaft sleeve to rotate at low speed through the output interface.

[0013] According to the above scheme, the gearbox assembly two includes a driving gear, a driven gear, an upper cover, a lower cover, and a bearing. The upper cover and the lower cover are fixedly connected and form an inner cavity for accommodating the driving gear, the driven gear, and the bearing. The lower end of the transmission shaft sleeve is fixedly connected to the upper cover. The driving gear is fixed on the central shaft, and the driving gear and the driven gear are meshed together. The driven gear is fixedly connected to the cutter shaft. The bearing is provided with mounting holes for assembling with the central shaft and the cutter shaft. With this configuration, when the central shaft drives the gearbox assembly one to rotate at a low speed, the transmission shaft sleeve drives the gearbox assembly two to rotate at a low speed. At the same time, the central shaft drives the driving gear to rotate, and the driving gear drives the driven gear and the cutter shaft to rotate. When the cutter shaft rotates, it revolves around the axis of the central shaft, while the stirring blade rotates around the axis of the cutter shaft. The mounting holes on the bearing for assembling with the central shaft and the cutter shaft, which are inserted into the mounting holes for rotation, ensure reliable meshing of the driving gear and the driven gear, and make the rotation smoother, reducing rotational friction.

[0014] According to the above scheme, the lower end of the central shaft passes through the upper cover and the driving gear and is installed in the first mounting hole of the bearing; the upper end of the cutter shaft is fixedly connected to the driven gear, and the lower end of the cutter shaft passes through the second mounting hole of the bearing and the lower cover and is fixedly connected to the stirring blade; a self-rotating sealing ring is provided between the cutter shaft and the lower cover, and a shock-absorbing pad is provided between the bearing and the lower cover. This arrangement reduces vibration noise during operation and extends service life through the shock-absorbing pad; the self-rotating sealing ring prevents water from entering during operation.

[0015] According to the above scheme, the stirring rod assembly includes a stirring rod, a connector, and a stirring cover. The upper end of the stirring rod is fixedly connected to the connector, and the connector is detachably connected to the main unit. The lower end of the stirring rod is fixedly connected to the stirring cover. The blade assembly is located inside the stirring cover. The axis of the stirring cover is on the same straight line as the axis of the central shaft, and a revolution sealing ring is provided between the stirring cover and the gearbox assembly. This configuration facilitates assembly. Since the axis of the stirring cover is on the same straight line as the axis of the central shaft, while the axis of the blade shaft is not on the same straight line as the axis of the central shaft, the stirring blade is not located in the center of the stirring cover. This makes it easier for large pieces of food to enter the stirring cover and be stirred, further improving the stirring efficiency and effect. The revolution sealing ring also prevents water from entering during operation.

[0016] According to the above scheme, the driving device includes a motor, a control board is provided inside the main unit, and a switch button is provided on the main unit. The switch button is correspondingly set with the control board, and the control board is electrically connected to the motor.

[0017] The beneficial effects of this utility model are:

[0018] This invention is designed so that the mixing blade can both rotate on its own axis and revolve internally. This operating mode allows the mixing blade to sweep a larger space during operation, enabling all-round 3D cutting of food. It also changes the position of the vortex inside the mixing head, allowing the ingredients to be more thoroughly mixed and cut, thus improving cutting efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of position A in the middle;

[0022] Figure 4 yes Figure 2 Enlarged view of position B in the middle;

[0023] Figure 5 This is an exploded view of the stirring rod assembly and the blade assembly of this utility model;

[0024] Figure 6 This is an exploded view of the gearbox assembly 1, the transmission shaft sleeve, the gearbox assembly 2, and the cutter assembly of this utility model;

[0025] Figure 7 This is an assembly diagram of the present invention when the blade assembly is a single unit;

[0026] Figure 8 This is an assembly diagram when the blade assembly of this utility model consists of two blades;

[0027] Figure 9 yes Figure 8 Sectional view.

[0028] In the picture:

[0029] 1. Main unit; 101. Motor; 102. Control board; 103. Switch button; 2. Stirring rod assembly; 3. Stirring rod; 31. Stirring cover; 4. Connector; 5. Central shaft; 6. Blade assembly; 61. Stirring blade; 62. Blade shaft; 63. Rotation seal ring; 7. Gearbox assembly one; 71. Input gear; 72. Output interface; 73. Planetary gear set; 74. External gear ring; 8. Transmission shaft sleeve; 9. Gearbox assembly two; 91. Driving gear; 92. Driven gear; 93. Upper cover; 94. Lower cover; 95. Bearing; 96. Shock-absorbing pad; 97. Revolution seal ring. Detailed Implementation

[0030] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 and Figure 9 As shown, the handheld mixer of this utility model includes a main unit 1, which is equipped with a drive device; a stirring rod assembly 2, which is detachably mounted on the main unit 1, and has a central shaft 5 at its center, which is driven to rotate by the drive device; and a blade assembly 6, which is driven to rotate by the central shaft 5, and includes a stirring blade 61 and a blade shaft 62, with the stirring blade 61 coaxially fixed on the blade shaft 62, and the axis of the blade shaft 62 and the axis of the central shaft 5 not being on the same straight line; during stirring, the central shaft 5 is driven to rotate by the drive device, the blade shaft 62 revolves around the axis of the central shaft 5, and the stirring blade 61 rotates around the axis of the blade shaft 62. This design allows the mixing blade 61 to both rotate on its own axis and revolve internally. This operating mode allows the mixing blade 61 to sweep a larger space during operation, enabling all-round 3D cutting of food. It also changes the position of the vortex within the mixing head, allowing the ingredients to be more thoroughly mixed and cut, improving cutting efficiency, and offsetting some of the suction force generated by the vortex, resulting in a better user experience.

[0032] Furthermore, the blade assembly 6 can be one or more; when there are multiple blade assemblies 6, the multiple blade assemblies 6 are evenly arranged around the outer periphery of the central shaft 5. During stirring, the blade shafts 62 of the multiple blade assemblies 6 simultaneously revolve around the axis of the central shaft 5, and the stirring blades 61 of each blade assembly 6 simultaneously rotate around the axis of their own blade shaft 62.

[0033] Furthermore, the stirring rod assembly 2 includes a gearbox assembly 7, a transmission shaft sleeve 8, and a gearbox assembly 9. Gearbox assembly 7 is located in the upper part of the stirring rod assembly 2, and gearbox assembly 9 is located in the lower part. The upper end of the transmission shaft sleeve 8 is fixedly connected to gearbox assembly 7, and the lower end of the transmission shaft sleeve 8 is fixedly connected to gearbox assembly 9. The cutter shaft 62 is rotatably mounted on gearbox assembly 9. Gearbox assembly 7 and cutter shaft 62 are driven to rotate synchronously via a central shaft 5. With this configuration, during stirring, the central shaft 5 drives gearbox assembly 7 to rotate, which in turn drives transmission shaft sleeve 8 to rotate, which in turn drives gearbox assembly 9 to rotate. Simultaneously, as gearbox assembly 9 rotates, the central shaft 5 also drives cutter shaft 62 to rotate synchronously.

[0034] Furthermore, the upper end of the central shaft 5 is driven and connected to the drive device, and the lower end of the central shaft 5 passes through the gearbox assembly 7 and the transmission shaft sleeve 8 and is driven and connected to the cutter shaft 62 on the gearbox assembly 9. The gearbox assembly 7, the transmission shaft sleeve 8, and the gearbox assembly 9 are all coaxially mounted with the central shaft 5. With this configuration, during stirring, the gearbox assembly 7, the transmission shaft sleeve 8, and the gearbox assembly 9 rotate simultaneously around the axis of the central shaft 5. Since the axis of the cutter shaft 62 and the axis of the central shaft 5 are not on the same straight line, the cutter shaft 62 revolves around the axis of the central shaft 5 when it rotates, while the stirring blade 61 rotates around the axis of the cutter shaft 62.

[0035] Furthermore, the gearbox assembly 7 includes an input gear 71, a planetary gear set 73, and an external gear ring 74. The input gear 71 is fixed on the central shaft 5, and its external teeth mesh with the internal teeth of the planetary gear set 73. The external teeth of the planetary gear set 73 mesh with the internal teeth of the external gear ring 74. The external gear ring 74 is fixed to the upper part of the stirring rod assembly 2. The planetary gear set 73 is provided with an output interface 72, and the upper end of the transmission shaft sleeve 8 is fixedly connected to the output interface 72. With this configuration, during stirring, the drive device drives the central shaft 5 and the input gear 71 to rotate at high speed. After the input gear 71 is decelerated by the planetary gear set 73 and the external gear ring 74, it drives the transmission shaft sleeve 8 to rotate at low speed through the output interface 72.

[0036] Furthermore, the gearbox assembly 9 includes a driving gear 91, a driven gear 92, an upper cover 93, a lower cover 94, and a bearing 95. The upper cover 93 and the lower cover 94 are fixedly connected and form an inner cavity for accommodating the driving gear 91, the driven gear 92, and the bearing 95. The lower end of the transmission shaft sleeve 8 is fixedly connected to the upper cover 93. The driving gear 91 is fixed on the central shaft 5, and the driving gear 91 and the driven gear 92 are meshed. The driven gear 92 is fixedly connected to the cutter shaft 62. The bearing 95 is provided with mounting holes for assembling with the central shaft 5 and the cutter shaft 62. With this configuration, when the central shaft 5 drives the gearbox assembly 7 to rotate the transmission shaft sleeve 8 at low speed, the transmission shaft sleeve 8 drives the gearbox assembly 9 to rotate at low speed as a whole. At the same time, the central shaft 5 drives the drive gear 91 to rotate, and the drive gear 91 drives the driven gear 92 and the cutter shaft 62 to rotate. When the cutter shaft 62 rotates, it revolves around the axis of the central shaft 5, while the stirring blade 61 rotates around the axis of the cutter shaft 62. The bearing 95 is provided with mounting holes for assembling with the central shaft 5 and the cutter shaft 62. The central shaft 5 and the cutter shaft 62 are inserted into the mounting holes and rotated, which can ensure reliable meshing between the drive gear 91 and the driven gear 92, and make the rotation smoother and reduce rotational friction.

[0037] In practical applications, when there is only one tool assembly 6, the bearing 95 has two mounting holes arranged side by side. When there are multiple tool assemblies 6, corresponding mounting holes are set on the bearing 95 according to the number and position of the tool shafts 62. Of course, multiple bearings 95 can also be set according to the number and position of the tool shafts 62, which not only limits the movement of the central shaft 5 and the tool shafts 62, ensuring reliable meshing of the driving gear 91 and the driven gear 92, but also facilitates smooth rotation of the central shaft 5 and the tool shafts 62.

[0038] Furthermore, the lower end of the central shaft 5 passes through the upper cover 93 and the driving gear 91 and is installed in the mounting hole of the bearing 95; the upper end of the cutter shaft 62 is fixedly connected to the driven gear 92, and the lower end of the cutter shaft 62 passes through the mounting hole of the bearing 95 and the lower cover 94 and is fixedly connected to the stirring blade 61; a self-rotating sealing ring 63 is provided between the cutter shaft 62 and the lower cover 94, and a shock-absorbing pad 96 is provided between the bearing 95 and the lower cover 94. This arrangement reduces vibration noise during operation and extends service life through the shock-absorbing pad 96; the self-rotating sealing ring 63 prevents water from entering during operation.

[0039] Furthermore, the stirring rod assembly 2 includes a stirring rod 3, a connector 4, and a stirring cover 31. The upper end of the stirring rod 3 is fixedly connected to the connector 4, and the connector 4 is detachably connected to the main unit 1. The lower end of the stirring rod 3 is fixedly connected to the stirring cover 31. The blade assembly 6 is located inside the stirring cover 31. The axis of the stirring cover 31 is on the same straight line as the axis of the central shaft 5, and a revolution sealing ring 97 is provided between the stirring cover 31 and the gearbox assembly 2 9. This arrangement facilitates assembly. Since the axis of the stirring cover 31 is on the same straight line as the axis of the central shaft 5, while the axis of the blade shaft 62 is not on the same straight line as the axis of the central shaft 5, the stirring blade 61 is not in the center of the stirring cover 31. This makes it easier for large pieces of food to enter the stirring cover 31 and be stirred, further improving the stirring efficiency and effect. The revolution sealing ring 97 prevents water from entering during operation.

[0040] In practical applications, the revolution sealing ring 97 is located between the stirring cover 31 and the lower cover 94 of the gearbox assembly 2 9.

[0041] Furthermore, the drive device includes a motor 101, a control board 102 is provided inside the main unit 1, and a switch button 103 is provided on the main unit 1. The switch button 103 is correspondingly arranged with the control board 102, and the control board 102 is electrically connected to the motor 101.

[0042] The working principle of this utility model:

[0043] During operation, the user presses the switch button 103, energizing the control board 102 to start the motor 101, thereby driving the central shaft 5, input gear 71, and drive gear 91 to rotate at high speed. After being reduced in speed by the gearbox assembly 7, the input gear 71 drives the transmission shaft sleeve 8 to rotate at low speed through the output interface 72. The transmission shaft sleeve 8 further drives the gearbox assembly 9 to rotate at low speed within the stirring shroud 31. Simultaneously, the drive gear 91 is driven to rotate through the central shaft 5, driving the driven gear 92 and the cutter shaft 62 to rotate at high speed, which in turn drives the stirring blade 61 to rotate at high speed at the bottom of the lower cover 94. Since the central shaft 5 and the cutter shaft 62 are not on the same axis, when the gearbox assembly 9 rotates at low speed within the stirring shroud 31, it will cause the cutter shaft 62 of the cutter assembly 6 to revolve around the central shaft 5 (the first rotating shaft). At the same time, the stirring blade 61 will be driven by the driven gear 92 to rotate around its own cutter shaft 62 (the second rotating shaft). In this way, the mixing blade 61 can both rotate on its own axis and revolve internally. This operating mode allows the mixing blade 61 to sweep a larger space during operation, enabling all-round 3D cutting of food. It changes the position of the vortex inside the mixing head, allowing the ingredients to be more thoroughly mixed and cut, improving cutting efficiency, and offsetting some of the suction force generated by the vortex, resulting in a better user experience. At the same time, since the mixing blade 61 is not located in the center of the mixing cover 31, it is easier for large pieces of food to enter the mixing cover 31 and be mixed, further improving mixing efficiency and mixing effect.

[0044] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims, and all of these forms are within the scope of protection of the present utility model.

Claims

1. A handheld blender, characterized in that, include: The host (1) is equipped with a drive device; A stirring rod assembly (2) is detachably mounted on the main unit (1). The stirring rod assembly (2) has a central shaft (5) at its center, which is driven to rotate by a driving device. The blade assembly (6) is driven to rotate by a central shaft (5). The blade assembly (6) includes a stirring blade (61) and a blade shaft (62). The stirring blade (61) is coaxially fixed on the blade shaft (62). The axis of the blade shaft (62) and the axis of the central shaft (5) are not on the same straight line. During stirring, the central shaft (5) is driven to rotate by a driving device, the blade shaft (62) revolves around the axis of the central shaft (5), and the stirring blade (61) rotates around the axis of the blade shaft (62).

2. A handheld mixer according to claim 1, characterized in that: The blade assembly (6) is one or more; when there are multiple blade assemblies (6), the multiple blade assemblies (6) are evenly surrounded around the outer periphery of the central shaft (5). During stirring, the blade shafts (62) of the multiple blade assemblies (6) simultaneously revolve around the axis of the central shaft (5), and the stirring blades (61) of each blade assembly (6) simultaneously rotate around the axis of its own blade shaft (62).

3. A handheld mixer according to claim 2, characterized in that: The stirring rod assembly (2) is provided with a gearbox assembly one (7), a transmission shaft sleeve (8) and a gearbox assembly two (9). The gearbox assembly one (7) is located in the upper part of the stirring rod assembly (2), and the gearbox assembly two (9) is located in the lower part of the stirring rod assembly (2). The upper end of the transmission shaft sleeve (8) is fixedly connected to the gearbox assembly one (7), and the lower end of the transmission shaft sleeve (8) is fixedly connected to the gearbox assembly two (9). The cutter shaft (62) is rotatably mounted on the gearbox assembly two (9). The gearbox assembly one (7) and the cutter shaft (62) are driven to rotate synchronously through the central shaft (5).

4. A handheld mixer according to claim 3, characterized in that: The upper end of the central shaft (5) is driven and connected to the driving device. The lower end of the central shaft (5) passes through the gearbox assembly one (7) and the transmission shaft sleeve (8) and is driven and connected to the cutter shaft (62) on the gearbox assembly two (9). The gearbox assembly one (7), the transmission shaft sleeve (8) and the gearbox assembly two (9) are respectively coaxially installed with the central shaft (5).

5. A handheld mixer according to claim 3, characterized in that: The gearbox assembly (7) includes an input gear (71), a planetary gear set (73), and an external gear ring (74). The input gear (71) is fixed on the central shaft (5). The external teeth of the input gear (71) mesh with the internal teeth of the planetary gear set (73). The external teeth of the planetary gear set (73) mesh with the internal teeth of the external gear ring (74). The external gear ring (74) is fixed in the upper part of the stirring rod assembly (2). The planetary gear set (73) is provided with an output interface (72). The upper end of the transmission shaft sleeve (8) is fixedly connected to the output interface (72).

6. A handheld mixer according to claim 3, characterized in that: The gearbox assembly 2 (9) includes a driving gear (91), a driven gear (92), an upper cover (93), a lower cover (94), and a bearing (95). The upper cover (93) and the lower cover (94) are fixedly connected and form an inner cavity for accommodating the driving gear (91), the driven gear (92), and the bearing (95). The lower end of the transmission shaft sleeve (8) is fixedly connected to the upper cover (93). The driving gear (91) is fixed on the central shaft (5). The driving gear (91) and the driven gear (92) are meshed. The driven gear (92) is fixedly connected to the cutter shaft (62). The bearing (95) is provided with mounting holes for assembling with the central shaft (5) and the cutter shaft (62).

7. A handheld mixer according to claim 6, characterized in that: The lower end of the central shaft (5) passes through the upper cover (93) and the driving gear (91) and is installed in the mounting hole of the bearing (95); the upper end of the cutter shaft (62) is fixedly connected to the driven gear (92), and the lower end of the cutter shaft (62) passes through the mounting hole of the bearing (95) and the lower cover (94) and is fixedly connected to the stirring blade (61); a self-rotating sealing ring (63) is provided between the cutter shaft (62) and the lower cover (94), and a shock-absorbing pad (96) is provided between the bearing (95) and the lower cover (94).

8. A handheld mixer according to claim 3, characterized in that: The stirring rod assembly (2) includes a stirring rod (3), a connector (4), and a stirring cover (31). The upper end of the stirring rod (3) is fixedly connected to the connector (4), and the connector (4) is detachably connected to the main unit (1). The lower end of the stirring rod (3) is fixedly connected to the stirring cover (31). The blade assembly (6) is located inside the stirring cover (31). The axis of the stirring cover (31) is on the same straight line as the axis of the central shaft (5), and a revolution sealing ring (97) is provided between the stirring cover (31) and the gearbox assembly (9).

9. A handheld mixer according to claim 2, characterized in that: The driving device includes a motor (101), the host (1) is provided with a control board (102), the host (1) is provided with a switch button (103), the switch button (103) is correspondingly provided with the control board (102), and the control board (102) is electrically connected to the motor (101).

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