Stirring driving mechanism and complementary food machine thereof

Abstract

The utility model relates to a stirring driving mechanism and a complementary food machine thereof, which comprise a stirring driving machine head, the stirring driving machine head is provided with an output shaft used for being in transmission connection with a stirring element in a stirring container, and the output shaft is provided with more than two sealing pieces used for preventing oil stains from flowing into the stirring container from the stirring driving machine head along the axial direction of the output shaft. The more than two sealing elements are arranged at intervals up and down or stacked up and down, and at least comprise a first sealing element and a second sealing element positioned at the lower part of the first sealing element, so that more than two layers of sealing parts are formed on the transmission connection structure of the stirring driving machine head; the double-layer sealing structure effectively prevents scrap iron, lubricating oil and other objects on the transmission connection structure of the stirring driving machine head from dripping into the inner cavity of the stirring container along the transmission connection structure.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to a stirring driving mechanism and a supplementary food machine thereof. Background Art

[0002] The existing supplementary food machine includes a stirring driving head which is detachably connected to the stirring container, and the output shaft of the stirring driving head is transmission-connected to the stirring shaft of the stirring container through a connecting piece; bearings and gears are arranged on the output shaft, and when the output shaft rotates, the connecting piece, gears, bearings and the output shaft generate rotational friction to form iron filings, and the iron filings enter the stirring container along the gap between the bearing, gears and the output shaft, or enter the stirring container along the gap between the connecting piece and the output shaft.

[0003] In addition, lubricating oil is usually applied to the output shaft and the bearing when the machine is installed, and the lubricating oil enters the mixing container along the gap between the bearing, the gear and the output shaft, or the lubricating oil enters the mixing container along the gap between the connecting piece and the output shaft; this causes contamination of the mixing container; or when the mixing container is used to mix food, lubricating oil, iron filings and other objects can easily enter the mixing container.

[0004] Therefore, further improvement is needed.

[0005] However, a supplementary food machine disclosed in Chinese Patent No. ZL201910830578.2 lacks a sealing structure at the connection between the output shaft and the stirring shaft of the stirring container, resulting in the above-mentioned deficiencies. Utility Model Content

[0006] The utility model aims to provide a stirring drive mechanism and a food supplement machine thereof, wherein more than two layers of sealing structures are provided on the transmission connection structure of the stirring drive machine head to prevent iron filings, lubricating oil and other objects on the transmission connection structure of the stirring drive machine head from dripping along the transmission connection structure into the inner cavity of the stirring container, thereby avoiding contamination of the inner cavity of the stirring container, or avoiding contamination of food in the inner cavity of the stirring container during stirring.

[0007] The purpose of the utility model is achieved in this way:

[0008] A stirring drive mechanism includes a stirring drive head, the stirring drive head has an output shaft for transmission connection with a stirring element in a stirring container, the output shaft is provided with more than two seals for preventing oil from flowing from the stirring drive head to the stirring container along the axial direction of the output shaft, the more than two seals are arranged with an upper and lower interval or upper and lower stacking, and the more than two seals include at least a first seal and a second seal located below the first seal.

[0009] More than two sealing elements and the output shaft on the transmission connection structure form more than two layers of sealing cooperation, and have more than two layers of sealing protection.

[0010] The first sealing member is located inside the stirring drive head, and the second sealing member is located outside the stirring drive head.

[0011] The stirring drive head includes a shell and a driving device arranged in the shell, and the output shaft serves as the output end of the driving device; the first seal and the second seal are arranged corresponding to the output end of the driving device, and the first seal is located inside the shell, and the second seal is located outside the shell.

[0012] A first mounting portion is arranged in the shell, a first sealing member is limitedly mounted on the first mounting portion, an output shaft of the driving device is inserted through the first mounting portion, and the first sealing member is sleeved on the outer side of the output shaft.

[0013] The driving device includes a motor and a gearbox, and the output shaft serves as the output end of the gearbox; the motor shaft of the motor is drivingly connected to the output end of the gearbox;

[0014] Alternatively, the driving device comprises a motor, and the output shaft serves as an output end of the motor;

[0015] The first sealing member is arranged corresponding to the output end of the gearbox or the motor;

[0016] The gearbox is provided with a transmission assembly which is transmission-connected with the motor shaft of the motor; the transmission assembly includes a bearing and a driven gear; the bearing and the driven gear are arranged on the output shaft, and the bearing and the driven gear are sleeved on the outside of the output shaft;

[0017] A first mounting portion for mounting a first sealing member is provided on the outer side or the inner side of the gearbox, and the first sealing member is inside the first mounting portion and blocks oil dirt of the gearbox from flowing along the output shaft into the mixing container;

[0018] The matching gap between the bearing, the driven gear and the output shaft forms a first gap connected to the mixing container; the first seal is located below the bearing and the driven gear to prevent the oil and dirt of the bearing and the driven gear from flowing into the mixing container along the first gap.

[0019] A second mounting portion is arranged outside the shell, a second sealing member is limitedly mounted on the second mounting portion, an output shaft of the driving device is inserted through the second mounting portion, and the second sealing member is sleeved on the outer side of the output shaft.

[0020] A connecting piece is provided on the second mounting portion of the housing, and the driving device includes a motor and a gearbox, and the output shaft serves as the output end of the gearbox; the motor shaft of the motor is drivingly connected to the output end of the gearbox;

[0021] Alternatively, the driving device comprises a motor, and the output shaft serves as an output end of the motor;

[0022] The second mounting part, the connecting piece, and the second sealing piece are located below the driving device; the output shaft is inserted through the second mounting part and connected to the connecting piece, and the second sealing piece is arranged corresponding to the output shaft;

[0023] The matching gap between the output shaft and the second mounting portion forms a second gap connected to the mixing container, and the upper portion of the second sealing member abuts against the matching gap between the second mounting portion and the output shaft to prevent oil dirt of the driving device from flowing along the output shaft and the second gap into the mixing container;

[0024] One end of the lower part of the second sealing member abuts against the inner side of the second mounting portion, and the other end of the lower part of the second sealing member abuts against the connecting member.

[0025] The stirring driving machine head comprises a machine cover and a bracket, wherein an electrical cavity for installing the driving device is formed between the machine cover and the bracket; the output shaft serves as the output end of the driving device; and a second mounting portion for installing a second sealing member is provided on the outer side of the bracket;

[0026] The sealing element is an oil seal or a sealing ring;

[0027] The sealing member is an oil seal, which includes an inner ring portion sleeved on the output shaft, a sealing rib portion abutting against the outer peripheral side of the output shaft is provided on the inner ring portion, and a blocking portion is formed between the inner ring portion and the sealing rib portion for blocking the oil dirt of the driving device from flowing along the output shaft into the mixing container;

[0028] The sealing rib part extends obliquely or transversely from the inner side of the inner ring part, the sealing rib part is elastic, the inner ring part of the oil seal is sleeved on the outer peripheral side of the output shaft, and the sealing rib part abuts against the outer peripheral side of the output shaft through elastic deformation;

[0029] The number of sealing ribs is more than two and they are in an annular structure;

[0030] The sealing member is a sealing ring, which includes a sealing ring portion sleeved on the outer peripheral side of the output shaft, and the inner side of the sealing ring portion abuts against the outer peripheral side of the output shaft;

[0031] The sealing ring portion is provided with an annular first sealing protrusion, which is extended along the outer side of the sealing ring portion. The sealing ring portion and the first sealing protrusion cooperate with each other to prevent the oil dirt of the driving device from flowing along the output shaft into the mixing container.

[0032] A second sealing protrusion is arranged on the sealing ring body, and the second sealing protrusion protrudes upward and is arranged on the sealing ring body; the sealing ring body and the second sealing protrusion cooperate with each other and prevent the oil dirt of the driving device from flowing into the mixing container along the output shaft.

[0033] A stirring shaft is arranged in the stirring container so that the stirring driving machine head is connected to the stirring container in a stirring transmission manner.

[0034] A baby food machine comprises a base, an outer cover arranged on the base, and the above-mentioned stirring drive mechanism. The base and the outer cover constitute a containing cavity. The stirring container is arranged in the containing cavity. The stirring drive head is arranged on the top of the outer cover. The stirring drive head, the base, and the outer cover enclose the stirring container. The base is provided with a heating element located at the lower part of the outer cover.

[0035] The sealing ring includes a sealing ring part, the output shaft is inserted into the gearbox and penetrates the bracket and the sealing ring part of the sealing ring, and the sealing ring part is provided with a first sealing protrusion that seals the matching gap between the output shaft and the bracket to prevent oil and iron filings on the output shaft from dripping into the inner cavity along the matching gap between the output shaft and the bracket;

[0036] The bottom of the sealing ring body abuts against the top of the connecting piece, and a second sealing protrusion abutting against the bracket is provided on the top of the sealing ring body. The sealing ring body and the second sealing protrusion seal the matching gap between the bracket and the upper and lower parts of the connecting piece to prevent oil stains and iron filings on the output shaft and the connecting piece from dripping into the inner cavity of the mixing container along the matching gap between the sealing bracket and the upper and lower parts of the connecting piece;

[0037] One end of the connecting piece is connected to the output shaft, and the other end of the connecting piece is connected to the stirring shaft, so that the stirring drive head and the stirring container are in a stirring transmission connection;

[0038] The gearbox is provided with a driving gear meshing with the driven gear, and the motor shaft of the motor is inserted into the gearbox and connected to the driving gear; the motor shaft of the motor drives the driving gear to rotate, and the driving gear drives the mixing container to rotate through the driven gear, the output shaft, the connecting piece, and the mixing shaft.

[0039] The beneficial effects of the utility model are as follows:

[0040] By providing more than two layers of sealing structures on the transmission connection structure of the stirring drive head, objects such as iron filings and lubricating oil on the transmission connection structure of the stirring drive head are prevented from dripping along the transmission connection structure into the inner cavity of the stirring container, thereby avoiding contamination of the inner cavity of the stirring container, or avoiding contamination of food in the inner cavity of the stirring container during stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the planar structure of the stirring drive mechanism according to one embodiment of the utility model.

[0042] Figure 2 It is a schematic cross-sectional structure diagram of a stirring drive mechanism according to an embodiment of the utility model.

[0043] Figure 3 This is a schematic diagram of the cross-sectional structure of the output shaft and the sealing member in one embodiment of the utility model.

[0044] Figure 4The figure is a schematic diagram of the assembly and decomposition structure of the stirring drive head according to one embodiment of the utility model.

[0045] Figure 5 It is a schematic diagram of the exploded structure of the three-dimensional cross-section assembly of the stirring drive head according to one embodiment of the utility model.

[0046] Figure 6 The figure is a three-dimensional structural schematic diagram of an oil seal according to an embodiment of the utility model.

[0047] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of an oil seal according to an embodiment of the utility model.

[0048] Figure 8 It is a schematic diagram of the three-dimensional structure of a sealing ring according to an embodiment of the utility model.

[0049] Fig. 9 It is a schematic cross-sectional structure diagram of a baby food machine according to an embodiment of the utility model. DETAILED DESCRIPTION

[0050] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0051] See also Figure 1-Figure 9 A stirring drive mechanism includes a stirring drive head 2, the stirring drive head 2 has an output shaft 4 for driving connection with a stirring element in a stirring container 1, and the output shaft 4 is provided with more than two seals 5 for preventing oil from flowing from the stirring drive head 2 to the stirring container 1 along the axial direction of the output shaft 4. The two or more seals 5 are arranged in an upper and lower interval or in an upper and lower stacked manner, and the two or more seals 5 include at least a first seal 6 and a second seal 10 located below the first seal 6.

[0052] The first sealing member is located inside the stirring drive head 2 , and the second sealing member is located outside the stirring drive head 2 .

[0053] The stirring drive head 2 includes a shell 22 and a driving device 23 arranged in the shell, and the output shaft 4 serves as the output end of the driving device 23; the first seal 6 and the second seal 10 are arranged corresponding to the output end of the driving device 23, and the first seal 6 is located inside the shell 22, and the second seal 10 is located outside the shell 22.

[0054] A first mounting portion 24 is provided in the housing 22 , and the first sealing member 6 is limitedly mounted on the first mounting portion 24 . The output shaft 4 of the driving device 23 is inserted through the first mounting portion 24 , and the first sealing member 6 is sleeved on the outer side of the output shaft 4 .

[0055] The driving device 23 includes a motor 20 and a gearbox 14, and the output shaft 4 serves as the output end of the gearbox 14; the motor shaft of the motor 20 is drivingly connected to the output end of the gearbox 14;

[0056] Alternatively, the driving device 23 includes a motor 20, and the output shaft 4 serves as an output end of the motor 20;

[0057] The first sealing member 6 is disposed corresponding to the output end of the gearbox 14 or the motor 20;

[0058] The gearbox 14 is provided with a transmission assembly 3 which is transmission-connected to the motor shaft of the motor 20; the transmission assembly 3 includes a bearing 15 and a driven gear 16; the bearing 15 and the driven gear 16 are arranged on the output shaft 4, and the bearing 15 and the driven gear 16 are sleeved on the outer side of the output shaft 4;

[0059] A first mounting portion 24 for mounting the first sealing member 6 is provided on the outer side or the inner side of the gearbox 14. The first sealing member 6 is inside the first mounting portion 24 and blocks the oil dirt of the gearbox 14 from flowing along the output shaft 4 into the mixing container 1.

[0060] The matching clearance between the bearing 15, the driven gear 16 and the output shaft 4 forms a first gap 26 connected to the mixing container 1; the first seal 6 is located below the bearing 15 and the driven gear 16 to prevent the oil stains of the bearing 15 and the driven gear 16 from flowing into the mixing container 1 along the first gap 26.

[0061] A second mounting portion 25 is disposed outside the housing 22 , and the second sealing member 10 is limitedly mounted on the second mounting portion 25 . The output shaft 4 of the driving device 23 is inserted through the second mounting portion 25 , and the second sealing member 10 is sleeved on the outside of the output shaft 4 .

[0062] A connecting member 18 is provided on the second mounting portion 25 of the housing 22. The driving device 23 includes a motor 20 and a gearbox 14. The output shaft 4 serves as the output end of the gearbox 14. The motor shaft of the motor 20 is drivingly connected to the output end of the gearbox 14.

[0063] Alternatively, the driving device 23 includes a motor 20, and the output shaft 4 serves as an output end of the motor 20;

[0064] The second mounting portion 25, the connecting member 18, and the second sealing member 10 are located below the driving device 23; the output shaft 4 is inserted through the second mounting portion 25 and connected to the connecting member 18, and the second sealing member 10 is disposed corresponding to the output shaft 4;

[0065] The matching gap between the output shaft 4 and the second mounting portion 25 forms a second gap 27 communicating with the stirring container 1, and the upper portion of the second sealing member 10 abuts against the matching gap between the second mounting portion 25 and the output shaft 4 to prevent the oil dirt of the driving device 23 from flowing along the output shaft 4 and the second gap 27 into the stirring container 1;

[0066] One end of the lower portion of the second sealing member 10 abuts against the inner side of the second mounting portion 25 , and the other end of the lower portion of the second sealing member 10 abuts against the connecting member 18 .

[0067] The stirring driving head 2 includes a machine cover 28 and a bracket 17. An electrical cavity 29 for installing the driving device 23 is formed between the machine cover 28 and the bracket 17. The output shaft 4 serves as the output end of the driving device 23. A second mounting portion 25 for mounting the second sealing member 10 is provided on the outer side of the bracket 17.

[0068] In this embodiment, the cover 28 and the bracket 17 are fixedly connected by screws, buckles, etc.

[0069] The sealing member 5 is an oil seal or a sealing ring;

[0070] The sealing member 5 is an oil seal, which includes an inner ring portion 7 sleeved on the output shaft 4, and a sealing rib portion 8 abutting against the outer peripheral side of the output shaft 4 is provided on the inner ring portion 7, and a blocking portion 9 is formed between the inner ring portion 7 and the sealing rib portion 8 for blocking the oil from the driving device 23 from flowing along the output shaft 4 into the mixing container 1;

[0071] The sealing rib 8 extends obliquely or laterally from the inner side of the inner ring 7. The sealing rib 8 is elastic. The inner ring 7 of the oil seal is sleeved on the outer peripheral side of the output shaft 4. The sealing rib 8 abuts against the outer peripheral side of the output shaft 4 through elastic deformation.

[0072] The number of the sealing ribs 8 is more than two and they are in an annular structure;

[0073] The sealing member 5 is a sealing ring, which includes a sealing ring portion 11 sleeved on the outer peripheral side of the output shaft 4, and the inner side of the sealing ring portion 11 abuts against the outer peripheral side of the output shaft 4;

[0074] The sealing ring portion 11 is provided with an annular first sealing protrusion 12, and the first sealing protrusion 12 is extended along the outer side of the sealing ring portion 11. The sealing ring portion 11 and the first sealing protrusion 12 cooperate with each other to prevent the oil from the driving device 23 from flowing along the output shaft 4 into the mixing container 1;

[0075] The sealing ring body is provided with a second sealing protrusion 13 , which protrudes upward and is arranged on the sealing ring body; the sealing ring body and the second sealing protrusion 13 cooperate with each other and block the oil dirt of the driving device 23 from flowing along the output shaft 4 into the mixing container 1 .

[0076] A stirring shaft 19 is provided in the stirring container 1 so that the stirring driving head 2 is connected to the stirring container 1 in a stirring transmission manner.

[0077] A baby food machine includes a base 30, an outer cover 31 arranged on the base 30, and the above-mentioned stirring drive mechanism. The base 30 and the outer cover 31 constitute a accommodating cavity 32. A stirring container 1 is arranged in the accommodating cavity 32. A stirring drive head 2 is arranged on the top of the outer cover 31. The stirring drive head 2, the base 30, and the outer cover 31 enclose the stirring container 1, and a heating element 33 located at the lower part of the outer cover 31 is provided on the base 30.

[0078] In this embodiment, the inner ring portion 7 is provided with a through hole into which the output shaft 4 is inserted.

[0079] In this embodiment, the sealing ring portion 11 is provided with a shaft hole into which the output shaft 4 is inserted.

[0080] The sealing ring includes a sealing ring portion 11. The output shaft 4 is inserted into the gearbox 14 and penetrates the bracket 17 and the sealing ring portion 11 of the sealing ring. The sealing ring portion 11 is provided with a first sealing protrusion 12 for sealing the matching gap between the output shaft 4 and the bracket 17.

[0081] The bottom of the sealing ring body abuts against the top of the connecting piece 18, and a second sealing protrusion 13 abutting against the bracket 17 is provided on the top of the sealing ring body. The sealing ring body and the second sealing protrusion 13 seal the matching gap between the bracket 17 and the connecting piece 18;

[0082] One end of the connecting member 18 is connected to the output shaft 4, and the other end of the connecting member 18 is connected to the stirring shaft 19, so that the stirring driving head 2 and the stirring container 1 are in a stirring transmission connection;

[0083] The gearbox 14 is provided with a driving gear 21 meshing with the driven gear 16, and the motor shaft of the motor 20 is inserted into the gearbox 14 and connected to the driving gear 21; the motor shaft of the motor 20 drives the driving gear 21 to rotate, and the driving gear 21 drives the mixing container 1 to rotate through the driven gear 16, the output shaft 4, the connecting piece 18, and the mixing shaft 19.

[0084] In this embodiment, the gearbox 14 includes an upper shell and a lower shell, and a mounting groove for mounting bearings, gears, oil seals, etc. is formed between the upper shell and the lower shell.

[0085] In this embodiment, the stirring drive head 2 includes a machine cover, and a bracket 17 is arranged at the bottom of the machine cover. An electrical cavity for installing the motor 20 and the gearbox 14 is provided in the machine cover, and the bracket 17 encapsulates the motor 20 and the gearbox 14 in the electrical cavity.

[0086] In this embodiment, when the output shaft 4 rotates, the oil seal does not rotate with the output shaft 4 , but the sealing ring rotates with the output shaft 4 .

[0087] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A stirring drive mechanism, comprising a stirring drive head (2), the stirring drive head (2) having an output shaft (4) for drivingly connecting to a stirring element in a stirring container (1), the output shaft (4) being provided with two or more sealing members (5) for preventing oil dirt from flowing from the stirring drive head (2) to the stirring container (1) along the axial direction of the output shaft (4), the two or more sealing members (5) being arranged in an up-and-down manner with an interval or in an up-and-down stack, and the two or more sealing members (5) at least comprising a first sealing member (6) and a second sealing member (10) located below the first sealing member (6).

2. The stirring drive mechanism according to claim 1, characterized in that: The first sealing member is located inside the stirring drive head (2), and the second sealing member is located outside the stirring drive head (2).

3. The stirring drive mechanism according to claim 1, characterized in that: The stirring driving machine head (2) comprises a housing (22) and a driving device (23) arranged in the housing, wherein the output shaft (4) serves as the output end of the driving device (23); the first sealing member (6) and the second sealing member (10) are arranged corresponding to the output end of the driving device (23), and the first sealing member (6) is located inside the housing (22), and the second sealing member (10) is located outside the housing (22).

4. The stirring drive mechanism according to claim 3, characterized in that: A first mounting portion (24) is provided in the housing (22), a first sealing member (6) is positionally mounted on the first mounting portion (24), an output shaft (4) of the drive device (23) is inserted through the first mounting portion (24), and the first sealing member (6) is sleeved on the outside of the output shaft (4).

5. The stirring drive mechanism according to claim 3, characterized in that: The driving device (23) comprises a motor (20) and a gearbox (14); the output shaft (4) serves as the output end of the gearbox (14); the motor shaft of the motor (20) is drivingly connected to the output end of the gearbox (14); Alternatively, the driving device (23) comprises a motor (20), and the output shaft (4) serves as an output end of the motor (20); The first sealing member (6) is arranged corresponding to the output end of the gearbox (14) or the motor (20); A transmission assembly (3) is provided in the gearbox (14) and is drivingly connected to the motor shaft of the motor (20); the transmission assembly (3) comprises a bearing (15) and a driven gear (16); the bearing (15) and the driven gear (16) are arranged on the output shaft (4), and the bearing (15) and the driven gear (16) are sleeved on the outside of the output shaft (4); A first mounting portion (24) for mounting a first sealing member (6) is provided on the outer side or the inner side of the gearbox (14); the first sealing member (6) is inside the first mounting portion (24) and blocks oil dirt of the gearbox (14) from flowing along the output shaft (4) into the stirring container (1); The matching clearance between the bearing (15), the driven gear (16) and the output shaft (4) forms a first clearance (26) communicating with the stirring container (1); the first sealing member (6) is located below the bearing (15) and the driven gear (16) to prevent oil dirt on the bearing (15) and the driven gear (16) from flowing into the stirring container (1) along the first clearance (26).

6. The stirring drive mechanism according to claim 3, characterized in that: A second mounting portion (25) is provided outside the housing (22), the second sealing member (10) is positionally mounted on the second mounting portion (25), the output shaft (4) of the drive device (23) is inserted through the second mounting portion (25), and the second sealing member (10) is sleeved on the outside of the output shaft (4).

7. The stirring drive mechanism according to claim 6, characterized in that: A connecting member (18) is provided on the second mounting portion (25) of the housing (22); the driving device (23) comprises a motor (20) and a gearbox (14); the output shaft (4) serves as an output end of the gearbox (14); the motor shaft of the motor (20) is drivingly connected to the output end of the gearbox (14); Alternatively, the driving device (23) comprises a motor (20), and the output shaft (4) serves as an output end of the motor (20); The second mounting portion (25), the connecting member (18), and the second sealing member (10) are located below the driving device (23); the output shaft (4) is inserted through the second mounting portion (25) and connected to the connecting member (18); the second sealing member (10) and the output shaft (4) are arranged correspondingly; The matching gap between the output shaft (4) and the second mounting portion (25) forms a second gap (27) communicating with the stirring container (1); the upper portion of the second sealing member (10) abuts against the matching gap between the second mounting portion (25) and the output shaft (4) to prevent oil stains of the driving device (23) from flowing along the output shaft (4) and the second gap (27) into the stirring container (1); One end of the lower portion of the second sealing member (10) abuts against the inner side of the second mounting portion (25), and the other end of the lower portion of the second sealing member (10) abuts against the connecting member (18).

8. The stirring drive mechanism according to claim 1, characterized in that: The stirring drive head (2) comprises a machine cover (28) and a bracket (17); an electrical chamber (29) for mounting a driving device (23) is formed between the machine cover (28) and the bracket (17); the output shaft (4) serves as an output end of the driving device (23); and a second mounting portion (25) for mounting a second sealing member (10) is provided on the outer side of the bracket (17); The sealing element (5) is an oil seal or a sealing ring; The sealing member (5) is an oil seal, comprising an inner ring portion (7) sleeved on the output shaft (4), the inner ring portion (7) being provided with a sealing rib portion (8) abutting against the outer peripheral side of the output shaft (4), and a blocking portion (9) for blocking oil dirt of the driving device (23) from flowing along the output shaft (4) into the mixing container (1) is formed between the inner ring portion (7) and the sealing rib portion (8); The sealing rib (8) extends obliquely or transversely from the inner side of the inner ring (7), the sealing rib (8) is elastic, the inner ring (7) of the oil seal is sleeved on the outer peripheral side of the output shaft (4), and the sealing rib (8) abuts against the outer peripheral side of the output shaft (4) through elastic deformation; The number of the sealing ribs (8) is more than two and they are in a ring-shaped structure; The sealing member (5) is a sealing ring, which comprises a sealing ring portion (11) sleeved on the outer peripheral side of the output shaft (4), and the inner side of the sealing ring portion (11) abuts against the outer peripheral side of the output shaft (4); An annular first sealing protrusion (12) is provided on the sealing ring portion (11), and the first sealing protrusion (12) is extended along the outer side of the sealing ring portion (11). The sealing ring portion (11) and the first sealing protrusion (12) cooperate with each other and prevent oil dirt of the driving device (23) from flowing along the output shaft (4) into the stirring container (1). A second sealing protrusion (13) is provided on the sealing ring body, and the second sealing protrusion (13) protrudes upward and is arranged on the sealing ring body; the sealing ring body and the second sealing protrusion (13) cooperate with each other and prevent oil dirt of the driving device (23) from flowing along the output shaft (4) into the stirring container (1).

9. The stirring drive mechanism according to claim 1, characterized in that: A stirring shaft (19) is provided in the stirring container (1) so that the stirring drive head (2) is connected to the stirring container (1) in a stirring transmission manner.

10. A baby food machine, comprising a base (30) and an outer cover (31) disposed on the base (30), characterized in that: The stirring drive mechanism further comprises the stirring drive mechanism according to any one of claims 1 to 9, wherein the base (30) and the outer cover (31) form a containing cavity (32), the stirring container (1) is arranged in the containing cavity (32), the stirring drive head (2) is arranged on the top of the outer cover (31), the stirring drive head (2), the base (30) and the outer cover (31) enclose the stirring container (1), and the base (30) is provided with a heating element (33) located at the lower part of the outer cover (31).

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