Food processor convenient to clean

Abstract

The utility model discloses a food processor convenient to clean, which comprises a main machine, a stirring cup assembly and a motor, the stirring cup assembly comprises a stirring cup and a stirring knife arranged in the stirring cup, the motor drives the stirring knife to rotate, the stirring knife comprises a knife shaft and a blade arranged on the knife shaft, a knife holder assembly is arranged at the bottom of the stirring cup, and the knife holder assembly is connected with the stirring cup. The cutter holder assembly comprises a shaft sleeve, a bearing and a shaft seal, the bearing and the shaft seal are arranged in the shaft sleeve, the cutter shaft penetrates through the shaft sleeve and is connected with the bearing and the shaft seal, and a residue removing structure for pushing food materials towards the radial outer side is arranged on the radial outer side of the cutter shaft and located between the blade and the upper end face of the shaft sleeve. According to the utility model, food material residues at the sealing position of the shaft seal can be actively cleaned, so that the accumulation of the food material residues is effectively avoided, the shaft seal and the bearing assembly are further protected, and finally, the service life of the tool apron assembly is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of small kitchen appliances, in particular to a food processor. Background Art

[0002] Food processing machines currently on the market, such as household wall-breaking machines, are provided with a heating plate at the bottom of their mixing cups, and a knife seat assembly is provided on the heating plate, and the knife shaft of the mixing knife is connected to the knife seat assembly. The knife seat assembly includes a shaft sleeve and a bearing and a shaft seal arranged in the shaft sleeve. The knife shaft passes through the shaft sleeve and is connected to the bearing and the shaft seal, and a rotary seal between the knife shaft and the shaft sleeve is achieved through the shaft seal. However, the machine will have a shaft seal leakage after being used for a long time. In order to avoid shaft seal leakage, the prior art mainly improves the shaft seal structure. For example, the Chinese utility model patent with the authorization announcement number CN 219962665 has an outer lip on the radial outer side of the upper part of the shaft seal, and the outer lip passes through the upper port of the shaft sleeve. The upper part of the outer lip is interference-sealed with the bottom surface of the blade. Although the reliability of the shaft seal has been improved to a certain extent, the service life of the shaft seal has been extended, and the frequency of shaft leakage has been reduced, the shaft leakage problem is still difficult to avoid. After further research, it was found that the damage to the oil seal was not affected by the manufacturing and assembly accuracy. The main reason was that the food residue accumulated between the blade and the upper end face of the sleeve, causing the oil seal to be continuously squeezed and eventually damaged and failed. Especially after the outer lip was set, the outer lip extended between the blade and the upper end face of the sleeve, and was constantly squeezed by the food residue, which made it more likely to be damaged and fail. Utility Model Content

[0003] In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide a food processing machine that actively cleans food residues between the blade and the upper end surface of the sleeve, thereby solving the problem of shaft seal damage and failure caused by accumulation of food residues.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a food processor that is easy to clean, comprising a main machine, a stirring cup assembly, and a motor. The stirring cup assembly comprises a stirring cup and a stirring knife arranged in the stirring cup. The motor drives the stirring knife to rotate. The stirring knife comprises a knife shaft and a blade installed on the knife shaft. A knife seat assembly is provided at the bottom of the stirring cup. The knife seat assembly comprises a shaft sleeve and a bearing and a shaft seal arranged in the shaft sleeve. The knife shaft passes through the shaft sleeve and is connected to the bearing and the shaft seal. A slag cleaning structure for pushing food materials to the radial outer side is provided between the blade and the upper end surface of the shaft sleeve on the radial outer side of the knife shaft.

[0005] Preferably, the slag cleaning structure includes a slag removing gasket fixed to the cutter shaft and rotating with the cutter shaft.

[0006] Preferably, the slag removing gasket is evenly distributed with centrifugal blades along the circumference, and the centrifugal blades push the food outward in the radial direction through the centrifugal action during the rotation process.

[0007] Preferably, the centrifugal blade includes an outer arc surface extending in an arc shape radially outward.

[0008] Preferably, a circular arc recess is provided at the tail end of the centrifugal blade, and a circular arc transition portion is provided between the circular arc recess and the head end of the adjacent centrifugal blade.

[0009] Preferably, the upper end surface of the slag removal gasket is in contact with the lower end surface of the blade, and an axial gap is provided between the lower end surface of the slag removal gasket and the upper end surface of the sleeve.

[0010] Preferably, the center hole of the slag removal gasket is interference fit with the cutter shaft, and the interference is 0.05 mm to 0.1 mm; and / or the outer diameter of the slag removal gasket is smaller than the diameter of the upper end face of the sleeve.

[0011] Preferably, at least two inner lips are axially provided on the radial inner side of the shaft seal, the inner lips extend radially upwardly and the extension length of at least the two inner lips increases from bottom to top, and the inner lips are interference sealed with the blade shaft.

[0012] Preferably, the shaft seal is provided with an inner radial portion, an outer radial portion, an upper connecting portion connecting the upper ends of the inner radial portion and the outer radial portion, a deformation gap provided between the inner radial portion and the outer radial portion, and an annular spring for increasing the rebound force of the inner lip is nested on the radial outer side of the inner radial portion.

[0013] Preferably, a bearing mounting portion for mounting the bearing is provided at the lower portion of the sleeve, a shaft seal mounting portion for mounting a shaft seal is provided at the upper portion of the sleeve, the diameter of the bearing mounting portion is larger than the diameter of the shaft seal mounting portion, an upper gasket is provided between the bearing and the upper end surface of the bearing mounting portion, and the bearing mounting portion is provided with an outer retaining ring on the lower side of the bearing for positioning the lower end of the bearing; and / or, two bearings are provided side by side up and down, and an isolation gasket is provided between the two bearings.

[0014] The technical solution adopted by the utility model has the following beneficial effects:

[0015] 1. Since the ingredients are beaten in an orderly and disordered state in the blender cup, especially when the amount of ingredients is large, as the number of operations increases, the ingredients will slowly accumulate between the blade and the upper end surface of the sleeve. At this time, the residue cleaning structure pushes the ingredients radially outward, thereby actively cleaning the food residues at the shaft seal sealing position, thereby effectively avoiding the accumulation of food residues and facilitating cleaning, thereby protecting the shaft seal and bearing assembly, and ultimately achieving an increase in the service life of the knife seat assembly.

[0016] In addition, since the accumulation of food residues is avoided, the service life of the oil seal is guaranteed. At the same time, since there is no obvious residue, the blender cup will not produce odor or cause bacteria to grow if left in the blender cup for a long time.

[0017] 2. The slag removal gasket is fixed to the blade shaft and rotates with the blade shaft, thereby generating centrifugal force, which is used to push the food radially outward. That is, as long as the blade shaft rotates at high speed, the slag removal gasket will continue to remove the slag, so that the food residue will not accumulate more and more.

[0018] 3. The slag removal gasket is evenly distributed with centrifugal blades along the circumference. The centrifugal blades cause the food residue to produce a centrifugal effect during high-speed rotation, so that it flows radially outward. That is, the centrifugal effect of the slag removal gasket is enhanced by the centrifugal blades, and the slag cleaning effect is further improved.

[0019] 4. The centrifugal blades are provided with an outer arc surface. During the rotation of the deslagging gasket, the outer arc surface directly contacts and pushes the food residue, guiding the food residue to flow radially outward along the outer arc surface to avoid accumulation at the shaft seal sealing position.

[0020] 5. A circular arc concave portion is provided at the tail end of the centrifugal blade. During the rotation of the slag removal gasket, the circular arc concave portion pushes the food residue to flow toward the outer arc surface, and finally guides the food residue through the outer arc surface and leaves the slag removal gasket.

[0021] 6. Since the upper end surface of the slag removal gasket fits with the lower end surface of the blade, food residues can be prevented from entering between the slag removal gasket and the blade. In addition, since an axial gap is provided between the lower end surface of the slag removal gasket and the upper end surface of the sleeve, the slag removal gasket can rotate smoothly and push away food residues.

[0022] 7. Since the center hole of the slag-removing gasket has an interference fit with the blade shaft, it is easy to install. The size design of the blade shaft diameter a and the center hole diameter b of the slag-removing gasket can ensure sufficient interference without causing difficulty in installing the slag-removing gasket. In addition, the outer diameter of the slag-removing gasket is smaller than the diameter of the upper end face of the sleeve. In this way, it will not affect the blade from beating the food, and the centrifugal force can be used to push the food residue to the radial outer side of the upper end face of the sleeve.

[0023] 8. The interference seal between the inner lip and the knife shaft is used to seal the high-speed rotating knife shaft, and the sealing reliability is increased through multiple inner lips to achieve the water-proof and slurry-proof functions of the shaft seal.

[0024] 9. A deformation gap is provided between the inner radial portion and the outer radial portion. The deformation gap can cause the inner radial portion to produce radial deformation, and the inner lip can always elastically fit the knife shaft, thereby ensuring that the inner lip forms a reliable seal with the high-speed rotating knife shaft. The annular spring is used to increase the resilience of the inner lip, thereby ensuring that the inner lip forms a reliable seal with the high-speed rotating knife shaft.

[0025] 10. Since the diameter of the bearing mounting part is larger than the diameter of the shaft seal mounting part, a limiting step can be formed at the upper end of the bearing mounting part, and the upper end of the bearing can be axially positioned in cooperation with the upper gasket. In addition, an external retaining ring is provided on the lower side of the bearing to position the lower end of the bearing. In this way, the upper and lower ends of the bearing can be reliably positioned, ensuring that the bearing is reliably positioned when the knife shaft rotates at high speed.

[0026] The specific technical solutions used and the beneficial effects brought about by them will be disclosed in detail in the following specific implementation modes in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0028] Figure 1 It is a structural schematic diagram of a food processing machine in the embodiment;

[0029] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0030] Figure 3 It is a schematic diagram of the structure of the slag removal gasket;

[0031] Figure 4 It is the structural schematic diagram of the shaft seal;

[0032] In the figure: a mixing cup assembly 1, a cup cover 11, a mixing cup 12, a knife seat assembly 13, a sleeve 131, a bearing assembly 1311, a shaft seal 1312, an inner radial portion 1312A, an outer radial portion 1312B, an upper connecting portion 1312C, a deformation gap 1312D, an inner lip 13121, an annular spring 13122, a skeleton 13123, an upper gasket 1313, an isolation gasket 1314, an outer retaining ring 1315, a positioning ring 1316, a slag removal gasket 132, a centrifugal blade 1321, an outer arc surface 13211, an arc recess 13212, an arc transition portion 13213, a center hole 1322, a heating plate 133, a mixing knife 14, a knife shaft 141, a blade 142, a main unit 2, and a motor 21. DETAILED DESCRIPTION

[0033] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0034] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0035] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 4 As shown, this embodiment provides a food processor that is easy to clean. Taking a wall-breaking machine as an example, it is specifically described, including a main machine 2 and a mixing cup assembly 1. The main machine 2 is provided with a motor 21. The mixing cup assembly 1 includes a mixing cup 12, a mixing knife 14 disposed in the mixing cup, and a cup cover 11 for covering the mixing cup. The mixing knife 14 includes a knife shaft 141 and a blade 142 mounted on the knife shaft. A knife seat assembly 13 is provided at the bottom of the mixing cup 12. The knife seat assembly 13 includes a shaft sleeve 131 and a bearing assembly 1311 and a shaft seal 1312 disposed in the shaft sleeve. The knife shaft 141 passes through the shaft sleeve 131 and is connected to the bearing assembly 1311 and the shaft seal 1312.

[0038] In addition, referring to the prior art, the bottom of the mixing cup 12 is provided with a heating plate 133, and the shaft sleeve 131 is provided at the center of the heating plate, that is, it is an integral structure with the heating plate and protrudes upward. Of course, the shaft sleeve and the heating plate can also be separate structures and then combined together. In order to solve the problem of shaft seal damage and failure caused by accumulation of food residues, the radial outer side of the blade shaft 141 is provided between the blade 142 and the upper end surface of the shaft sleeve 131 to push the food outward in the radial direction.

[0039] There are orderly and disordered states when ingredients are beaten in the blender cup. Especially when the amount of ingredients is large, as the number of operations increases, the ingredients will slowly accumulate between the blade and the upper end surface of the sleeve. At this time, the residue cleaning structure pushes the ingredients radially outward, thereby actively cleaning the food residues at the shaft seal sealing position, thereby effectively avoiding the accumulation of food residues and facilitating cleaning, thereby protecting the shaft seal and bearing assembly, and ultimately achieving a longer service life of the knife seat assembly.

[0040] In addition, since the accumulation of food residues is avoided, the service life of the oil seal is guaranteed. At the same time, since there is no obvious residue, the blender cup will not produce odor or cause bacteria to grow if left in the blender cup for a long time.

[0041] In this embodiment, the slag removal structure includes a slag removal gasket 132 fixed to the blade shaft 141 and rotating with the blade shaft. The slag removal gasket is fixed to the blade shaft and rotates with the blade shaft, so that centrifugal force can be generated, and the food is pushed outward in the radial direction by the centrifugal force, that is, as long as the blade shaft rotates at a high speed, the slag removal gasket will continue to remove the slag, so that the food residue will not accumulate more and more.

[0042] Specifically, Figure 3 As shown, the center of the slag removal gasket is provided with a center hole 1322, and centrifugal blades 1321 are evenly distributed along the circumference. The centrifugal blades 1321 push the food outward in the radial direction through the centrifugal action during the rotation process. The centrifugal blades cause the food residue to produce a centrifugal effect during the high-speed rotation process, so that it flows in the radial direction outward, that is, the centrifugal effect of the slag removal gasket is strengthened by the centrifugal blades, and the slag removal effect is further improved.

[0043] Furthermore, the centrifugal blade 1321 includes an outer arc surface 13211 extending in an arc shape radially outward. The outer arc surface 13211 protrudes radially outward, and from the tail end of the outer arc surface to the head end, it is farther and farther away from the center of the slag removal gasket, forming a gradually outward arc guide surface. During the rotation of the slag removal gasket, the outer arc surface directly contacts and pushes the food residue, guiding the food residue to flow radially outward along the outer arc surface to avoid accumulation at the shaft seal position. The tail end of the centrifugal blade 1321 is provided with an arc recess 13212, one end of the arc recess is connected to the outer arc surface of the centrifugal blade, and the other end is provided with an arc transition portion 13213 between the head end of the outer arc surface of the adjacent centrifugal blade. The overall extension direction of the arc recess is roughly in the radial direction, so that during the rotation of the slag removal gasket, the food residue is pushed to flow toward the outer arc surface, and finally guided by the outer arc surface to leave the slag removal gasket.

[0044] Specifically, the upper end surface of the slag-removing gasket 132 is in contact with the lower end surface of the blade, and an axial gap is provided between the lower end surface of the slag-removing gasket 132 and the upper end surface of the shaft sleeve. Since the upper end surface of the slag-removing gasket is in contact with the lower end surface of the blade, food residues can be prevented from entering between the slag-removing gasket and the blade; in addition, since an axial gap is provided between the lower end surface of the slag-removing gasket and the upper end surface of the shaft sleeve, the slag-removing gasket can be ensured to rotate smoothly and push away food residues.

[0045] In order to ensure that the slag removal gasket can rotate with the cutter shaft, the center hole 1322 of the slag removal gasket cooperates with the cutter shaft interference fit 141, and the interference is 0.05mm~0.1mm. That is, the diameter of the cutter shaft is a, the diameter of the center hole of the slag removal gasket is b, and ab=0.1~0.2mm. This size can ensure sufficient interference without causing difficulty in installing the slag removal gasket. In addition, the outer diameter of the slag removal gasket is smaller than the diameter of the upper end face of the sleeve. In this way, it will not affect the blade beating the food, and the centrifugal force can also be used to push the food residue to the radial outside of the upper end face of the sleeve.

[0046] It is understandable that the number of centrifugal blades can be designed with different parameters according to the slag cleaning effect, including the diameter, number and curvature of the blades.

[0047] It is understandable that the slag removal structure is not limited to the slag removal gasket in this embodiment. For example, a slag removal rib can be provided on the upper end surface of the sleeve, and the slag removal rib protrudes from the upper end surface of the sleeve, and guides the food to be pushed out in the radial outward direction during the high-speed rotation of the blade. As another embodiment, a slag removal blade can be provided extending downward from the lower side of the blade, which plays a similar role to the slag removal gasket. The slag removal blade causes the food residue to produce a centrifugal effect during the high-speed rotation, so that it flows in the radial outward direction.

[0048] Referring to the prior art, the shaft seal 1312 can be made of a material with high wear resistance and elasticity, such as butyl rubber. Figure 4 As shown, the radial inner side of the shaft seal is provided with a plurality of inner lips 13121 along the axial direction, and the inner lips are interference-sealed with the knife shaft. It is used to seal the knife shaft rotating at high speed to increase the sealing reliability and realize the water-proof and slurry-proof functions of the shaft seal. The gap between two adjacent inner lips is filled with lubricating grease. It is used to lubricate the knife shaft rotating at high speed. Because the shaft seal is mainly used to prevent the liquid in the mixing cup from flowing to the outside, the inner lip extends radially inward and upward, and the extension length of at least two inner lips increases from bottom to top, so that the multiple inner lips are arranged in the shape of an inverted trumpet, that is, facing the direction where the liquid may leak, so as to exert its sealing effect. At the same time, because the shaft seal is made of a material with high wear resistance and elasticity, the more upward the inner lip, the greater the rebound force, so as to achieve the beneficial effect of multiple sealing.

[0049] like Figure 4As shown, the shaft seal 1312 is provided with an inner radial portion 1312A, an outer radial portion 1312B, an upper connecting portion 1312C connecting the inner radial portion and the upper end of the outer radial portion, and a deformation gap 1312D provided between the inner radial portion and the outer radial portion. The inner lip 13121 is provided on the radial inner side of the inner radial portion, and the outer side wall of the outer radial portion is provided with a concave-convex structure along the axial direction to form a wave-like undulation. The deformation gap can cause the inner radial portion to produce radial deformation, and the inner lip can always elastically fit the knife shaft, ensuring that the inner lip forms a reliable seal with the high-speed rotating knife shaft. The concave-convex structure can ensure the seal between the outer radial portion and the shaft sleeve.

[0050] It can be understood that in order to increase the strength of the shaft seal, a skeleton 13123 can be embedded inside the shaft seal 1312, and the skeleton is mainly located inside the outer radial part and partially located inside the upper connecting part.

[0051] In order to further increase the resilience of the inner lip and ensure that the inner lip forms a reliable seal with the high-speed rotating knife shaft, a ring spring 13122 for increasing the resilience of the inner lip is embedded in the radial outer side of the inner radial portion. It can be understood that the sealing effect can be ensured by reasonably setting the number, maximum diameter, thickness and height of the inner lips.

[0052] The shaft sleeve is provided with a bearing mounting part and a shaft seal mounting part corresponding to the bearing assembly and the shaft seal. In order to fix the axial position of the shaft seal, the upper end of the shaft sleeve is provided with an inner flange, and the lower end surface of the inner flange cooperates with the upper end surface of the shaft seal to limit the position. The bearing assembly 1311 includes two bearings arranged side by side up and down, and an isolation gasket 1314 is provided between the two bearings. The diameter of the bearing mounting part is larger than the diameter of the shaft seal mounting part, and an upper gasket 1313 is provided between the bearing and the upper end surface of the bearing mounting part. The bearing mounting part is provided with an outer retaining ring 1315 on the lower side of the bearing to position the lower end of the bearing. Since the diameter of the bearing mounting part is larger than the diameter of the shaft seal mounting part, a limiting step can be formed at the upper end of the bearing mounting part, and the upper end of the bearing can be axially positioned in cooperation with the upper gasket. In addition, an outer retaining ring is provided on the lower side of the bearing to position the lower end of the bearing. In this way, the upper and lower ends of the bearing are reliably positioned, ensuring that the bearing is reliably positioned when the knife shaft rotates at high speed. The knife shaft 132 is provided with positioning rings 1316 on both sides of the axial direction of the bearing to position the upper and lower ends of the bearing. Two bearings are clamped between the upper and lower positioning rings. The position of the knife shaft is fixed by the bearings. The bearings are pressed into the sleeve and fixed in the sleeve by an external retaining ring, which accurately fixes the position and size of the knife shaft and the blade.

[0053] It can be understood that other structures of the food processor not described in this embodiment can refer to the prior art.

[0054] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A food processor that is easy to clean, comprising a main machine, a mixing cup assembly, and a motor, wherein the mixing cup assembly comprises a mixing cup and a mixing knife arranged in the mixing cup, the motor drives the mixing knife to rotate, the mixing knife comprises a knife shaft and a blade mounted on the knife shaft, a knife seat assembly is arranged at the bottom of the mixing cup, the knife seat assembly comprises a shaft sleeve and a bearing and a shaft seal arranged in the shaft sleeve, the knife shaft passes through the shaft sleeve and is connected to the bearing and the shaft seal, and is characterized in that: A slag cleaning structure for pushing food outward in the radial direction is provided on the radial outer side of the knife shaft between the blade and the upper end surface of the sleeve.

2. A convenient and clean food processor according to claim 1, characterized in that: The slag removal structure comprises a slag removal gasket which is fixed to the cutter shaft and rotates with the cutter shaft.

3. A convenient and clean food processor according to claim 2, characterized in that: The slag removal gasket is evenly distributed with centrifugal blades along the circumference, and the centrifugal blades push the food materials outward in the radial direction through the centrifugal action during the rotation process.

4. The convenient and clean food processor according to claim 3, characterized in that: The centrifugal blade comprises an outer arc surface extending in an arc shape radially outward.

5. The convenient and clean food processor according to claim 3, characterized in that: The tail end of the centrifugal blade is provided with an arc recess, and an arc transition portion is provided between the arc recess and the head end of the adjacent centrifugal blade.

6. The convenient and clean food processor according to claim 2, characterized in that: The upper end surface of the slag removal gasket is in contact with the lower end surface of the blade, and an axial gap is provided between the lower end surface of the slag removal gasket and the upper end surface of the shaft sleeve.

7. The convenient and clean food processor according to claim 2, characterized in that: The center hole of the slag removal gasket is interference fit with the cutter shaft, and the interference is 0.05mm-0.1mm; and / or the outer diameter of the slag removal gasket is smaller than the diameter of the upper end surface of the sleeve.

8. The convenient and clean food processor according to claim 1, characterized in that: At least two inner lips are axially arranged on the radial inner side of the shaft seal, the inner lips extend radially upward and the extension length of the at least two inner lips increases from bottom to top, and the inner lips are interference sealed with the cutter shaft.

9. The convenient and clean food processor according to claim 8, characterized in that: The shaft seal is provided with an inner radial portion, an outer radial portion, an upper connecting portion connecting the inner radial portion and the upper end of the outer radial portion, a deformation gap provided between the inner radial portion and the outer radial portion, and an annular spring for increasing the resilience of the inner lip is nested on the radial outer side of the inner radial portion.

10. The convenient and clean food processor according to claim 1, characterized in that: A bearing mounting portion for mounting the bearing is provided at the lower portion of the shaft sleeve, a shaft seal mounting portion for mounting a shaft seal is provided at the upper portion of the shaft sleeve, the diameter of the bearing mounting portion is larger than the diameter of the shaft seal mounting portion, an upper gasket is provided between the bearing and the upper end surface of the bearing mounting portion, and the bearing mounting portion is provided with an outer retaining ring on the lower side of the bearing for positioning the lower end of the bearing; and / or, two bearings are provided side by side up and down, and an isolation gasket is provided between the two bearings.

Images