Sealing structure of stirring cutter set, stirring cup assembly and food processor

Abstract

The utility model discloses a sealing structure of a stirring cutter group, a stirring cup assembly and a food processer, the sealing structure comprises a mounting bracket, a cutter assembly and an oil seal assembly, and the mounting bracket is provided with a first through hole; the cutter assembly comprises a driving motor and a stirring blade, a motor main body of the driving motor is mounted on the mounting bracket, and an output shaft of the driving motor penetrates through the first through hole and is in transmission connection with the stirring blade; the oil seal assembly comprises a sealing ring and an oil seal, wherein the sealing ring and the oil seal are arranged on the output shaft of the driving motor in a sleeving mode and abut against each other up and down for sealing. The sealing ring seals the first through hole. The inner side wall of the oil seal abuts against the output shaft in a sealing mode, and the outer side wall of the oil seal is in clearance fit with the installation support. Therefore, when the sealing between the output shaft and the sealing ring fails due to the fact that the output shaft inclines towards one side of the sealing ring, the oil seal arranged on the output shaft in a sleeving mode can incline along with the output shaft and is tightly connected to the output shaft in an abutting mode to achieve sealing, and then the sealing reliability of the output shaft is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a food processor technical field, concretely relates to a sealing structure of stirring knife group, stirring cup subassembly and food processor. BACKGROUND

[0002] The part provided in this part is merely background information related to the present application to facilitate those skilled in the art to understand the present application more thoroughly and accurately, and it is not necessarily prior art.

[0003] With the increasing improvement of people's living standards, many different types of food processors appear on the market. The food processor can include a soybean milk machine, a blender or a complementary food machine and other machines for crushing and stirring food.

[0004] At present, the food processor on the market usually includes a stirring cup, a stirring knife arranged in the stirring cup and a main machine arranged at the bottom of the stirring cup, the bottom of the stirring cup is provided with a shaft hole, the main machine includes a motor, and the output shaft of the motor penetrates through the shaft hole and is in transmission connection with the stirring knife. In order to realize waterproof sealing, an oil seal is usually arranged on the output shaft to seal the shaft hole.

[0005] Among them, the bottom of most oil seals is provided with a spring, and the oil seal is abutted on the bottom wall of the stirring cup under the elastic force of the spring to realize compression and fixation. By such arrangement, when the motor output shaft is inclined to the side of the oil seal due to assembly error, compression imbalance occurs on both sides of the oil seal at this time, and then one-sided wear of the oil seal causes sealing failure between the oil seal and the output shaft. INVENTION CONTENTS

[0006] In order to overcome the defects of the prior art described above, the utility model provides a sealing structure of stirring knife group, stirring cup subassembly and food processor, which can solve the problem of sealing failure between the oil seal and the output shaft mentioned in the background art.

[0007] The utility model adopts the technical scheme that

[0008] A sealing structure of stirring knife group, comprising

[0009] The mounting bracket is provided with a first through hole;

[0010] The knife assembly comprises a driving motor and a stirring blade; the motor body of the driving motor is mounted on the mounting bracket, and the output shaft of the driving motor penetrates through the first through hole and is in transmission connection with the stirring blade;

[0011] The oil seal assembly comprises a sealing ring and an oil seal, the sealing ring is sleeved on the output shaft of the driving motor and abuts against each other to seal, the sealing ring seals the first through hole, the inner side wall of the oil seal abuts against the output shaft to form a waterproof seal, and the outer side wall of the oil seal is in clearance fit with the mounting support.

[0012] Further, the outer side wall of the sealing ring is provided with a clamping groove, the clamping groove is clamped at the first through hole to form a waterproof seal with the mounting support, the inner side wall of the sealing ring is provided with at least one first sealing lip, and the first sealing lip abuts against the outer side wall of the output shaft to form a waterproof seal.

[0013] The bottom of the sealing ring abuts against the top of the oil seal to form a waterproof seal.

[0014] Further, the top of the oil seal is provided with a first convex rib, and the first convex rib abuts against the bottom of the sealing ring to form a waterproof seal.

[0015] Further, the inner side wall of the oil seal is provided with at least one second sealing lip, the second sealing lip abuts against the outer side wall of the output shaft to form a waterproof seal, and the bottom of the oil seal abuts against the motor body of the driving motor.

[0016] Further, the top of the mounting support is provided with a first convex table, the first convex table is internally provided with a first accommodating cavity, and the first through hole is arranged at the top of the first convex table and communicates with the first accommodating cavity.

[0017] The oil seal is located in the first accommodating cavity, and the outer side wall of the oil seal is in clearance fit with the inner side wall of the first accommodating cavity.

[0018] Further, the top of the mounting support is further provided with a second convex table, the first convex table is located on the second convex table, and the second convex table is internally provided with a second accommodating cavity communicating with the first accommodating cavity.

[0019] The second accommodating cavity is provided with a mounting groove for fixing the motor body of the driving motor.

[0020] Further, the bottom of the mounting support is provided with an enclosure, the enclosure and the mounting support form a third accommodating cavity communicating with the second accommodating cavity, and the motor body of the driving motor is partially accommodated in the third accommodating cavity.

[0021] In addition, the second aspect of the utility model further provides a stirring cup assembly, which comprises a stirring cup, a heating tube and the sealing structure.

[0022] The stirring blade is located in the stirring cup; a second through hole is formed in the bottom of the stirring cup, the output shaft of the driving motor passes through the second through hole and is connected with the stirring blade; the bottom of the stirring cup is provided with a heating tube;

[0023] The top of the sealing ring abuts against the bottom of the stirring cup to form a waterproof seal.

[0024] Further, the top of the sealing ring is further provided with at least a second convex rib, and the second convex rib abuts against the bottom of the stirring cup to form a waterproof seal.

[0025] In addition, the utility model discloses a third aspect further provides a kind of food processor, including shell and the above-mentioned stirring cup subassembly of being arranged in the shell.

[0026] In conclusion, the sealing structure of the stirring blade group, the stirring cup subassembly and the food processor provided by the utility model seal the first through hole by arranging the sealing ring above the oil seal, and the oil seal and the mounting bracket are gap fitted, so when the output shaft is inclined to the side of the sealing ring and causes the sealing failure between the output shaft and the sealing ring, the oil seal sleeved on the output shaft can be inclined with the output shaft and tightly abut on the outer side wall of the output shaft to realize sealing, thereby ensuring the sealing reliability of the output shaft. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the explosion schematic view of the sealing structure of the stirring blade group of the utility model;

[0028] Figure 2 It is the structural schematic view of the mounting bracket in the sealing structure of the utility model;

[0029] Figure 3 It is Figure 2 It is the structural schematic view of another perspective;

[0030] Figure 4 It is the structural schematic view of the oil seal in the sealing structure of the utility model;

[0031] Figure 5 It is the cross-sectional schematic view of the sealing structure of the utility model;

[0032] Figure 6 It is the cross-sectional schematic view of the stirring cup subassembly of the utility model;

[0033] Figure 7 It is the cross-sectional schematic view of the food processor of the utility model.

[0034] Wherein, the meaning of the reference signs is as follows:

[0035] 1, mounting bracket; 11, first boss; 111, first through hole; 112, first accommodating cavity; 12, second boss; 121, second accommodating cavity; 122, mounting groove; 13, fence; 131, third accommodating cavity; 2, drive motor; 21, motor body; 22, output shaft; 3, stirring blade; 4, sealing ring; 41, clamping groove; 42, first sealing lip; 43, second protruding rib; 5, oil seal; 51, first protruding rib; 52, second sealing lip; 6, stirring cup; 61, second through hole; 7, heating tube; 8, casing. DETAILED DESCRIPTION

[0036] In order to better understand and implement, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0037] In the description of the present application, it should be pointed out that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the indicated modules or elements must have a specific orientation, be constructed in a specific orientation and be operated.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0039] Embodiment one

[0040] Reference Figures 1-5 The present application provides a sealing structure of a stirring tool group, comprising a mounting bracket 1, a tool assembly and an oil seal assembly, a first through hole 111 is formed in the mounting bracket 1; the tool assembly comprises a drive motor 2 and a stirring blade 3, the drive motor 2 comprises a motor body 21 and an output shaft 22 arranged on the motor body 21, the motor body 21 is installed on the mounting bracket 1, the output shaft 22 passes through the first through hole 111 and is in transmission connection with the stirring blade 3; the oil seal assembly comprises a sealing ring 4 and an oil seal 5, the sealing ring 4 is sleeved on the output shaft 22 of the drive motor 2 and abuts against each other to seal up and down, the sealing ring 4 seals the first through hole 111; the inner side wall of the oil seal 5 abuts against the output shaft 22 to form a waterproof seal, and the outer side wall of the oil seal 5 is gap-fitted with the mounting bracket 1.

[0041] Thus, by arranging the sealing ring 4 above the oil seal 5 to seal the first through hole 111, and the gap between the oil seal 5 and the mounting bracket 1, when the output shaft 22 tilts to the side of the sealing ring 4, causing the sealing between the output shaft 22 and the sealing ring 4 to fail, the oil seal 5 fitted on the output shaft 22 can tilt with the output shaft 22 and tightly abut on the outer side wall of the output shaft 22 to achieve sealing, thereby ensuring the sealing reliability of the output shaft 22. At the same time, since the oil seal 5 abuts and seals with the sealing ring 4, the sealing reliability of the first through hole 111 can be ensured.

[0042] Referring to Figures 4-5 Specifically, the outer side wall of the sealing ring 4 is annularly provided with a clamping groove 41, the sealing ring 4 is clamped at the first through hole 111 of the mounting bracket 1 through the clamping groove 41 and forms a waterproof seal with the mounting bracket 1; the inner side wall of the sealing ring 4 is further provided with two first sealing lips 42 arranged upward and downward, both of which abut on the outer side wall of the output shaft 22 to form a waterproof seal; the bottom of the sealing ring 4 abuts with the top of the oil seal 5 to form a waterproof seal.

[0043] Further, the top of the oil seal 5 is annularly provided with a first protruding rib 51, which abuts on the bottom of the sealing ring 4 to form a waterproof seal; the inner side wall of the oil seal 5 is provided with a plurality of second sealing lips 52, which abut on the outer side wall of the output shaft 22 to form a waterproof seal; the bottom of the oil seal 5 abuts with the motor body 21 of the driving motor 2.

[0044] Further, the top center of the mounting bracket 1 is provided with a first boss 11, the inside of the first boss 11 is provided with a first accommodating cavity 112, and the first through hole 111 is arranged at the top of the first boss 11 and communicates with the first accommodating cavity 112; the oil seal 5 is located in the first accommodating cavity 112. Preferably, a certain gap is left between the outer side wall of the oil seal 5 and the inner side wall of the first accommodating cavity 112. In this way, when the output shaft 22 tilts to one side, the oil seal 5 fitted on the output shaft 22 can tilt and move with the output shaft 22, so that the oil seal 5 and the output shaft 22 are always in close abutment, thereby ensuring the waterproof sealing of the output shaft 22.

[0045] Further, the top of the mounting bracket 1 is further provided with a second boss 12, the first boss 11 is located on the second boss 12, the second boss 12 is provided with a second accommodating cavity 121 communicating with the first accommodating cavity 112, and the second accommodating cavity 121 is provided with a mounting groove 122 for fixing the motor body 21. In addition, the bottom of the mounting bracket 1 is provided with a fence 13, and the fence 13 and the mounting bracket 1 form a third accommodating cavity 131 communicating with the second accommodating cavity 121, and part of the motor body 21 is accommodated in the third accommodating cavity 131.

[0046] In the embodiment, the first boss 11, the second boss 12 and the enclosure 13 are integrally formed on the mounting bracket 1.

[0047] Embodiment two

[0048] With reference to Figure 6 The utility model discloses a second aspect further provides a stirring cup subassembly, including stirring cup 6, heating tube 7 and above-mentioned sealing structure of embodiment one, wherein:

[0049] The stirring blade 3 is located in the stirring cup 6, the stirring cup 6 is placed on the mounting bracket 1, the bottom of the stirring cup 6 is provided with the second through hole 61, and the output shaft 22 of the driving motor 2 passes through the second through hole 61 and is connected with the stirring blade 3, and the bottom of the stirring cup 6 is provided with the heating tube 7.

[0050] Preferably, the top of the sealing ring 4 is also annularly provided with a plurality of second convex ribs 43, and the plurality of second convex ribs 43 are all abutted on the bottom of the stirring cup 6 to form a waterproof seal.

[0051] Embodiment three

[0052] With reference to Figure 7 The utility model discloses a third aspect further provides a food processor, including the casing 8 and the like above-mentioned stirring cup subassembly of embodiment two of setting in the casing 8.

[0053] In summary, the sealing structure of the stirring blade group, the stirring cup subassembly and the food processor provided by the utility model seal the first through hole 111 by arranging the sealing ring 4 above the oil seal 5, and the oil seal 5 is gap-fitted between the mounting bracket 1, so that when the output shaft 22 is inclined to the side of the sealing ring 4 and the seal between the output shaft 22 and the sealing ring 4 fails, the oil seal 5 sleeved on the output shaft 22 can be inclined with the output shaft 22 and tightly abutted on the outer side wall of the output shaft 22 to realize sealing, thereby ensuring the sealing reliability of the output shaft 22. Meanwhile, the oil seal 5 is abutted and sealed with the sealing ring 4, thereby ensuring the sealing reliability of the first through hole 111.

[0054] It should be understood that the terms "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the modules or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0055] In addition, in the description of the utility model, the meaning of "a plurality of" and "several" is two or more than two, unless otherwise explicitly and specifically limited.

[0056] The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be pointed out that, for ordinary skilled persons in the technical field, under the premise of not departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the utility model.

Claims

1. A sealing structure for a mixing knife group, characterized in that: include A mounting bracket having a first through hole; A tool assembly comprising a drive motor and a stirring blade; the motor body of the drive motor is mounted on the mounting bracket, and the output shaft of the drive motor passes through the first through hole and is in transmission connection with the stirring blade; An oil seal assembly includes a sealing ring and an oil seal that are sleeved on the output shaft of the drive motor and abut against each other in sealing. The sealing ring seals the first through hole. The inner wall of the oil seal abuts against the output shaft to form a waterproof seal, and the outer wall of the oil seal is loosely matched with the mounting bracket.

2. The sealing structure according to claim 1, wherein: The outer wall of the sealing ring is provided with a slot, which is engaged with the first through hole to form a waterproof seal with the mounting bracket; the inner wall of the sealing ring is provided with at least one first sealing lip, which abuts against the outer wall of the output shaft to form a waterproof seal; The bottom of the sealing ring abuts against the top of the oil seal to form a waterproof seal.

3. The sealing structure according to claim 2, characterized in that: The top ring of the oil seal is provided with a first rib, and the first rib abuts against the bottom of the sealing ring to form a waterproof seal.

4. The sealing structure according to claim 3, characterized in that: The inner side wall of the oil seal is provided with at least one second sealing lip, and the second sealing lip abuts against the outer side wall of the output shaft to form a waterproof seal; the bottom of the oil seal abuts against the motor body of the drive motor.

5. The sealing structure according to any one of claims 1 to 4, characterized in that: The top of the mounting bracket is provided with a first boss, a first accommodating cavity is defined inside the first boss, and the first through hole is defined on the top of the first boss and communicates with the first accommodating cavity; The oil seal is located in the first accommodating cavity, and an outer side wall of the oil seal is clearance-matched with an inner side wall of the first accommodating cavity.

6. The sealing structure according to claim 5, characterized in that: The top of the mounting bracket is further provided with a second boss, the first boss is located on the second boss; the interior of the second boss is provided with a second accommodating cavity communicating with the first accommodating cavity; A mounting groove for fixing the motor body of the drive motor is provided in the second accommodating cavity.

7. The sealing structure according to claim 6, characterized in that: A baffle is provided at the bottom of the mounting bracket, and the baffle and the mounting bracket are enclosed to form a third accommodating cavity communicating with the second accommodating cavity, and the motor body of the drive motor is accommodated in the third accommodating cavity.

8. A blending cup assembly, characterized in that: The invention comprises a stirring cup, a heating tube and a sealing structure as claimed in any one of claims 1 to 7, wherein: The stirring blade is located in the stirring cup; a second through hole is formed at the bottom of the stirring cup, and the output shaft of the driving motor passes through the second through hole and is connected to the stirring blade; a heating tube is provided at the bottom of the stirring cup; The top of the sealing ring abuts against the bottom of the blending cup to form a waterproof seal.

9. The blending cup assembly according to claim 8, wherein: At least one second rib is also provided around the top of the sealing ring, and the second rib abuts against the bottom of the mixing cup to form a waterproof seal.

10. A food processor, characterized in that: The invention comprises a housing and a stirring cup assembly according to claim 8 or 9 arranged in the housing.

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