Food processor
By using a sealing ring in the cooking machine to isolate the contact between the motor shaft and the ingredients, the problem that the motor shaft in the prior art needs to meet high corrosion and hygiene requirements is solved, and the effect of reducing the cost of the motor shaft is achieved.
Patent Information
- Application Number
- CN202420815501.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-18
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-18
AI Technical Summary
In existing cooking machines, the motor shaft needs to be in direct contact with the ingredients, which causes the motor shaft to meet anti-corrosion and food hygiene requirements, which increases costs.
By setting a sealing ring in the cooking machine, the sealing ring covers the connection between the motor shaft and the mixing knife, and completely covers the part where the motor shaft is inserted into the mixing chamber, thereby isolating the contact between the motor shaft and the ingredients.
On the premise of ensuring food hygiene requirements, the requirements for the material and corrosion resistance of the motor shaft are reduced, thereby reducing the manufacturing cost of the motor shaft.
Smart Images
Figure CN222656888U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of small household appliances, and more specifically, to a food processor. Background Art
[0002] In some food processors, the motor shaft is inserted into a barrel that contains ingredients, so that the motor shaft often comes into direct contact with the ingredients in the barrel. The motor shaft needs to meet corrosion resistance and food hygiene requirements, which makes the motor shaft expensive. Summary of the invention
[0003] The present application provides an improved food processor, which can reduce the cost of the motor shaft.
[0004] A food processor, comprising:
[0005] Main machine, including motor shaft;
[0006] The cup body is provided with a stirring chamber, and one end of the motor shaft is inserted into the stirring chamber;
[0007] A stirring blade is disposed in the stirring chamber and connected to the motor shaft; and
[0008] A sealing ring is arranged in the stirring chamber, the sealing ring sealingly covers the connection between the motor shaft and the stirring blade, and the portion of the motor shaft inserted into the stirring chamber is completely covered by the sealing ring.
[0009] In this solution, the connection between the motor shaft and the stirring blade is sealed and covered by a sealing ring, and the part of the motor shaft inserted into the stirring machine is also completely covered by the sealing ring, which can isolate the motor shaft from the food in the stirring machine. Under the premise of ensuring food hygiene requirements, the selection requirements for the motor shaft material and anti-corrosion performance can be appropriately lowered, thereby reducing the manufacturing cost of the motor shaft.
[0010] Optionally, the stirring blade comprises a blade shaft and a blade connected to the blade shaft, one of the blade shaft and the motor shaft is provided with a hole, and the other is provided with a shaft, the shaft is matched and connected with the hole, and the sealing ring is covered at the connection between the shaft and the hole. The connection method between the blade shaft and the motor shaft is simple and saves space.
[0011] Optionally, the shaft portion is provided with an external thread, the hole portion is provided with an internal thread, and the external thread is matched with the internal thread for connection. The threaded connection is not only simple to assemble, but also convenient and reliable.
[0012] Optionally, the blade shaft is provided with the shaft portion, the motor shaft is provided with the hole portion, the shaft portion is formed with a first step surface, and the first step surface abuts against the top of the motor shaft. In this arrangement, the first step surface can be limited by cooperating with the motor shaft to limit the depth of the shaft portion inserted into the hole portion, thereby ensuring that the assembly position of the mixing blade is fixed and the whipping effect of the mixing blade is guaranteed.
[0013] Optionally, the knife shaft is configured as a stepped shaft and is formed with a second stepped surface, and the sealing ring is clamped between the second stepped surface and the bottom wall of the cup body. The sealing ring can be subjected to a clamping force and can be stably fixed between the stepped surface and the bottom wall to ensure sealing reliability.
[0014] Optionally, the sealing ring is also clamped between the blade and the bottom wall of the cup body. The sealing ring can be subjected to the clamping force of the blade along the axial direction of the blade shaft to ensure the stability of the position of the sealing ring.
[0015] Optionally, a through hole is provided in the hollow of the sealing ring for the knife shaft and the motor shaft to pass through, and the through hole includes a variable cross-section hole at the lower end, and the closer to the bottom wall of the cup body, the larger the diameter of the variable cross-section hole. The setting of the variable cross-section hole can make the lower end of the sealing ring expand outward or the material become less, thereby reducing the strength. Under the action of the clamping force, the sealing ring is more easily deformed, and the contact area with the bottom wall is larger, so the sealing effect is better.
[0016] Optionally, the through hole further comprises a hole of equal cross section connected to the hole of variable cross section, the hole of equal cross section is arranged above the hole of variable cross section along the axial direction of the knife shaft, and at the connection between the knife shaft and the motor shaft, the hole of equal cross section is interference fit with the knife shaft and the motor shaft. The sealing ring is tightly fitted on the outside of the knife shaft and the motor shaft, so as to achieve good sealing of the motor shaft and prevent the motor shaft from contacting with external food.
[0017] Optionally, the outer surface of the sealing ring is further provided with an annular recess extending along the circumference of the sealing ring, and the annular recess is correspondingly arranged at the junction of the uniform cross-section hole and the variable cross-section hole. At the annular recess, the wall thickness of the sealing ring is small and the strength is low. Under the action of the clamping force, the sealing ring can form stress concentration at the recess, so that the sealing ring is uniformly deformed in an expected manner.
[0018] Optionally, the stirring blade comprises a blade shaft and a blade connected to the blade shaft, and the length of a portion of the blade shaft exposed to the stirring chamber is greater than the length of a portion of the motor shaft inserted into the stirring chamber;
[0019] Or, the bottom wall of the cup body is provided with a boss protruding upward, and the dimension of the motor shaft above the boss is less than or equal to 5mm. The shorter the length of the motor shaft extending into the stirring chamber, the smaller the contact area between the motor shaft and the food in the stirring chamber becomes, and the motor shaft is more easily separated from the food in the stirring chamber; therefore, the short length of the motor shaft extending into the stirring chamber in the above scheme can not only reduce the probability of the motor shaft contacting the food, so that it meets the food hygiene requirements, but also reduce the overall length of the motor shaft, so that the material used to manufacture the motor shaft is reduced, and the manufacturing cost of the motor shaft is further reduced. Optionally, the sealing ring is also clamped between the stirring knife and the bottom wall of the cup body, and the sealing ring includes a top surface in contact with the stirring knife and a bottom surface in contact with the bottom wall, and the area of the top surface is greater than the area of the bottom surface. In this way, the area of the top surface is relatively large, and the top surface can be well in contact with the stirring knife, more precisely, in contact with the stepped surface of the knife shaft or the blade, thereby ensuring that the contact point is more waterproof. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a schematic diagram of a food processor shown in an exemplary embodiment of the present application;
[0021] Figure 2 is a cross-sectional view of a partial structure of a food processor shown in an exemplary embodiment of the present application;
[0022] Figure 3 is another cross-sectional view of a partial structure of a food processor shown in an exemplary embodiment of the present application;
[0023] Figure 4 is a schematic diagram of a first embodiment of a sealing ring shown in an exemplary embodiment of the present application;
[0024] Figure 5 is a schematic diagram of a second embodiment of a sealing ring shown in an exemplary embodiment of the present application;
[0025] Figure 6 It is a disassembled view of a partial structure of a food processor shown in an exemplary embodiment of the present application. DETAILED DESCRIPTION
[0026] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application.
[0027] The terms used in this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantity restrictions, but indicate that there is at least one, and will be separately described if only "one" is referred to. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "lower" and / or "upper", "top", "bottom" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
[0028] Please refer to Figure 1 and Figure 2 , Figure 1 It is a schematic diagram of a food processor 100 according to an exemplary embodiment of the present application. Figure 2 yes Figure 1 Magnified view of site A.
[0029] The present application provides a food processor 100, which includes a housing 10, a main unit 20 and a cup body 30 disposed in the housing 10, and a cover body 40 covering the cup body 30. The housing 10 may be provided with a handle 11, which may be integrally formed with the housing 10 or assembled with the housing 10, wherein the specific structure of the handle 11 is not limited. The food processor 100 includes but is not limited to a soymilk machine.
[0030] The host 20 is located at the bottom of the cup body 30, and the host 20 includes a motor shaft 21. The cup body 30 is provided with a stirring chamber 31, one end of the motor shaft 21 is inserted into the stirring chamber 31 from the bottom of the cup body 30, and an oil seal 25 is provided between the motor shaft 21 and the cup body 30, which is used to seal the gap between the cup body 30 and the motor shaft 21, thereby achieving waterproofness of the host 20 and leakage prevention of the cup body 30.
[0031] The food processor 100 further includes a mixing blade 50 and a sealing ring 60. The mixing blade 50 is disposed in the mixing chamber 31 and connected to the motor shaft 21. The motor shaft 21 can drive the mixing blade 50 to rotate so as to beat the food in the mixing chamber 31. The sealing ring 60 is disposed in the mixing chamber 31. The sealing ring 60 is sealed and covered at the connection between the motor shaft 21 and the mixing blade 50, and the portion of the motor shaft 21 inserted into the mixing chamber 31 is completely covered by the sealing ring 60.
[0032] According to the above description, the connection between the motor shaft 21 and the stirring blade 50 is sealed and covered by the sealing ring 60, and the part of the motor shaft 21 inserted into the stirring chamber 31 is also completely covered by the sealing ring 60, which can isolate the motor shaft from the food in the stirring chamber, which reduces the probability of the motor shaft 21 contacting the food in the stirring chamber 31. Under the premise of ensuring food hygiene requirements, the selection requirements for the material and corrosion resistance of the motor shaft 21 can be appropriately reduced, thereby reducing the manufacturing cost of the motor shaft 21. In one embodiment, the stirring blade 50 includes a blade shaft 51 and a blade 52 connected to the blade shaft 51, wherein the blade 52 can be provided with multiple blades. One of the blade shaft 51 and the motor shaft 21 is provided with a hole portion 210, and the other is provided with a shaft portion 510. In this embodiment, the blade shaft 51 is provided with a shaft portion 510, and the motor shaft 21 is provided with a hole portion 210. The shaft portion 510 is connected with the hole portion 210, wherein the sealing ring 60 covers the connection between the shaft portion 510 and the hole portion 210. With such arrangement, the connection between the cutter shaft 51 and the motor shaft 21 is simple and space-saving. In an optional embodiment, the shaft portion 510 can be plugged into the hole portion 210 in an interference fit manner. In this embodiment, the shaft portion 510 is provided with an external thread, and the hole portion 210 is provided with an internal thread, and the external thread is matched and connected with the internal thread. The threaded connection is not only simple to assemble, but also convenient and reliable. It should be pointed out that when adopting the threaded connection, the rotation direction of the thread on the shaft portion 510 should be compatible with the direction of rotation of the cutter shaft 51 to avoid the cutter shaft 51 and the motor shaft 21 from loosening.
[0033] exist Figure 2 In the illustrated embodiment, the blade shaft 51 is provided with a shaft portion 510, and the motor shaft 21 is provided with a hole portion 210. The shaft portion 510 is formed with a first step surface 512, and the first step surface 512 abuts against the top of the motor shaft 21. In this arrangement, the first step surface 512 and the motor shaft 21 can be used to limit the depth of the shaft portion 510 inserted into the hole portion 210, thereby ensuring the position of the blade 52.
[0034] In one embodiment, Figure 2As shown, the knife shaft 51 is a stepped shaft, and is further formed with a second stepped surface 511, the second stepped surface 511 is located above the first stepped surface 512, and the sealing ring 60 is also clamped between the second stepped surface 511 and the bottom wall 32 of the cup body 30. In this way, the sealing ring 60 is subjected to the clamping force and can be stably fixed between the second stepped surface 511 and the bottom wall 32 to ensure the reliability of the seal.
[0035] In another embodiment, if Figure 3 As shown, the portion of the blade shaft 51 located outside the motor shaft 21 is a uniform cross-section shaft, and the sealing ring 60 is clamped between the blade 52 and the bottom wall 32 of the cup body 30. In this way, the sealing ring 60 can also be subjected to a clamping force along the axial direction of the blade shaft to ensure the stability of the position of the sealing ring 60.
[0036] Please combine Figures 2 to 5 , Figure 4 FIG. 1 is a schematic diagram of a first embodiment of the sealing ring 60 . Figure 5 It is a schematic diagram of a second embodiment of the sealing ring 60 .
[0037] exist Figure 4 and Figure 5 In the embodiment shown, the hollow part of the sealing ring 60 is provided with a through hole 61 for the knife shaft 51 and the motor shaft 21 to pass through, and the through hole 61 includes a variable cross-section hole 610 located at the lower end, and the diameter of the variable cross-section hole 610 is larger as it is closer to the bottom wall of the cup body 30. In this way, the setting of the variable cross-section hole 610 can make the lower end of the sealing ring 60 expand outward and the material is less, and thus the strength is smaller. Under the action of the clamping force, the sealing ring 60 is more easily deformed, and the contact area with the bottom wall 32 is larger, so the sealing effect is better. In this embodiment, the closer to the bottom wall of the cup body 30, the smaller the wall thickness of the sealing ring 60 is, and it is easier to deform.
[0038] exist Figure 4 and Figure 5 In the embodiment shown, the through hole 61 further includes a uniform cross-section hole 611 communicating with the variable cross-section hole 610, the uniform cross-section hole 611 is arranged above the variable cross-section hole 610 along the axial direction of the knife shaft, and the uniform cross-section hole 611 is respectively interference-fitted with the knife shaft 51 and the motor shaft 21 at the connection between the knife shaft 51 and the motor shaft 21. With such a configuration, the sealing ring 60 is tightly fitted on the outside of the knife shaft 51 and the motor shaft 21, so that the motor shaft 21 can be well sealed to prevent the motor shaft 21 from contacting with external food.
[0039] exist Figure 4 and Figure 5In the illustrated embodiment, the outer surface of the sealing ring 60 is further provided with an annular recess 62 extending along the circumference of the sealing ring 60, and the annular recess 62 is correspondingly arranged at the junction of the uniform cross-section hole 611 and the variable cross-section hole 610. At the annular recess 62, the wall thickness of the sealing ring 60 is small and the strength is low, and under the action of the clamping force, the sealing ring 60 can form stress concentration at the annular recess 62, so that the sealing ring 60 is uniformly deformed in an expected manner.
[0040] exist Figures 2 to 5 In the illustrated embodiment, the sealing ring 60 is also clamped between the stirring blade 50 and the bottom wall 32 of the cup body 30, and the sealing ring 60 includes a top surface 63 in contact with the stirring blade 50 and a bottom surface 64 in contact with the bottom wall 32, and the area of the top surface 63 is larger than the area of the bottom surface 64. In this way, the area of the top surface 63 is relatively large, and the top surface 63 can be well in contact with the stirring blade 50, more specifically, in contact with the stepped surface of the blade shaft 51 or the blade 52, thereby ensuring that the contact point is more waterproof.
[0041] In one embodiment, the portion of the motor shaft 21 inserted into the stirring chamber 31 can be set relatively short so that the portion can be easily completely covered. For example, the length of the portion of the blade shaft 51 exposed to the stirring chamber can be set to be greater than the length of the portion of the motor shaft 21 inserted into the stirring chamber 31. Figure 3 As shown, the bottom wall of the cup body 30 is provided with a boss 33 protruding upward, and the motor shaft 21 is higher than the boss 33 by a size less than or equal to 5 mm. The shorter the length of the motor shaft 21 extending into the stirring chamber 31, the smaller the contact area between the motor shaft 21 and the food in the stirring chamber 31 becomes, and the motor shaft 21 is also easily isolated from the food in the stirring chamber 31. Therefore, the length of the motor shaft 21 extending into the stirring chamber 31 in this embodiment becomes shorter, which can reduce the probability and risk of the motor shaft 21 contacting the food, and the sealing ring 60 further realizes the isolation of the motor shaft 21 from the food. Under the premise of meeting the food hygiene requirements, it can achieve an appropriate reduction in the selection requirements for the material and anti-corrosion performance of the motor shaft, and the shortened length of the motor shaft 21 extending into the stirring chamber 31 also shortens the overall length of the motor shaft 21, reducing the materials used to manufacture the motor shaft 21, and further reducing the manufacturing cost of the motor shaft 21.
[0042] Please refer to Figure 6 , Figure 6 It is an exploded view of a part of the structure of the food processor 100.
[0043] exist Figure 6In the embodiment shown, the cup body 30 is a circular cylinder with an opening 35 at the top, and the mixing blade 50 and the sealing ring 60 can be installed through the opening 35. For example, the sealing ring 60 can be pre-mounted on the blade shaft 51 of the mixing blade 50, but the invention is not limited thereto. The cup body 30 is also provided with a spoiler rib 34, which protrudes from the inner surface of the cup body 30.
[0044] The food processor 100 further includes a thermostat 70, which can be fixedly connected to the body of the motor. The oil seal 25 is located outside the stirring chamber 31 and is installed at the installation hole at the bottom of the cup body 30 for inserting the motor shaft 21. The oil seal 25 is clamped between the thermostat 70 and the bottom wall 32. The blade shaft 51 can be made of corrosion-resistant steel, such as 3 series stainless steel or 4 series stainless steel.
[0045] In one embodiment, the motor shaft 21 may be made of 45-grade steel to reduce material costs.
[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.
Claims
1. A food processor, characterized in that: include: A host machine (20), comprising a motor shaft (21); The cup body (30) is provided with a stirring chamber (31), and one end of the motor shaft (21) is inserted into the stirring chamber (31); A stirring blade (50) is disposed in the stirring chamber (31) and connected to the motor shaft (21); and A sealing ring (60) is disposed in the stirring chamber (31), and the sealing ring (60) seals and covers the connection between the motor shaft (21) and the stirring blade (50), and the portion of the motor shaft (21) inserted into the stirring chamber (31) is completely covered by the sealing ring (60).
2. The food processor according to claim 1, characterized in that: The stirring blade (50) comprises a blade shaft (51) and a blade connected to the blade shaft (51); one of the blade shaft (51) and the motor shaft (21) is provided with a hole portion (210), and the other is provided with a shaft portion (510); the shaft portion (510) is matched and connected to the hole portion (210); and the sealing ring (60) covers the connection between the shaft portion (510) and the hole portion (210).
3. The food processor according to claim 2, characterized in that: The shaft portion (510) is provided with an external thread, and the hole portion (210) is provided with an internal thread, and the external thread is matched and connected with the internal thread.
4. The food processor according to claim 2, characterized in that: The knife shaft (51) is provided with the shaft portion (510), the motor shaft (21) is provided with the hole portion (210), and the shaft portion (510) is formed with a first step surface, and the first step surface abuts against the top of the motor shaft (21).
5. The food processor according to claim 2, characterized in that: The knife shaft (51) is configured as a stepped shaft and is formed with a second stepped surface (511), and the sealing ring (60) is clamped between the second stepped surface (511) and the bottom wall of the cup body (30).
6. The food processor according to claim 2, characterized in that: A through hole (61) is provided in the hollow of the sealing ring (60) for the knife shaft (51) and the motor shaft (21) to pass through, and the through hole (61) includes a variable cross-section hole (610) located at the lower end, and the closer to the bottom wall of the cup body (30), the larger the size of the variable cross-section hole (610) in the radial direction of the knife shaft.
7. The food processor according to claim 6, characterized in that: The through hole (61) further comprises a uniform cross-section hole (611) connected to the variable cross-section hole (610); the uniform cross-section hole (611) is arranged above the variable cross-section hole (610) along the axial direction of the knife shaft; at the connection between the knife shaft (51) and the motor shaft (21), the uniform cross-section hole (611) is interference fit with the knife shaft (51) and the motor shaft (21).
8. The food processor according to claim 7, characterized in that: The outer surface of the sealing ring (60) is also provided with an annular recess (62) extending along the circumference of the sealing ring (60), and the annular recess (62) is correspondingly arranged at the connecting position of the uniform cross-section hole (611) and the variable cross-section hole (610).
9. The food processor according to claim 1, characterized in that: The stirring blade (50) comprises a blade shaft (51) and a blade (52) connected to the blade shaft (51), and the length of the portion of the blade shaft (51) exposed to the stirring chamber (31) is greater than the length of the portion of the motor shaft (21) inserted into the stirring chamber (31); Alternatively, the bottom wall of the cup body (30) is provided with a boss (33) protruding upward, and the height of the motor shaft (21) above the boss (33) is less than or equal to 5 mm.
10. The food processor according to any one of claims 1 to 9, characterized in that: The sealing ring (60) is also clamped between the stirring blade (50) and the bottom wall (32) of the cup body (30), and the sealing ring (60) includes a top surface (63) in contact with the stirring blade (50) and a bottom surface (64) in contact with the bottom wall (32), and the area of the top surface (63) is larger than the area of the bottom surface (64).