CN218186506U - Food processor - Google Patents

Abstract

The utility model discloses a food processor, wherein, this food processor includes: a host; the bottom of the stirring cup is provided with a cup shaft; and the cutter is arranged in the stirring cup and comprises a cutter shaft matched with the main machine in a driving way, a cutter shaft inner hole for the insertion of the cup shaft is formed in the bottom of the cutter shaft, a gap is formed between the inner peripheral surface of the cutter shaft inner hole and the outer peripheral surface of the cup shaft, the cutter shaft inner hole is provided with a hole top wall opposite to the top end surface of the cup shaft, and the hole top wall and/or the top end of the cup shaft are/is provided with bulges so that point contact is formed between the cutter shaft and the cup shaft. The technical scheme of the utility model realize stopping the sword fast through comparatively simple structure of stopping the sword, can also solve simultaneously that the arbor hole hides sediment, washs the problem of difficulty easily.

Description

Food processor

Technical Field

The utility model relates to the technical field of living appliances, in particular to a food processor.

Background

Food processors are common kitchen appliances in people's daily life. The food processor generally comprises a main machine, a stirring cup and a cutter, wherein a cup shaft is arranged at the bottom of the stirring cup, the cutter comprises a cutter shaft and a blade connected with the cutter shaft, and a cutter shaft inner hole is formed at the bottom of the cutter shaft. When the food processor is used, the cup shaft extends into the inner hole of the cutter shaft, the main machine is in driving connection with the cutter shaft, and the main machine drives the blades on the cutter shaft to rotate, so that food is processed.

Due to the requirement of safety regulations, the blade of the food processor needs to be stopped in a short time after the main machine stops working or the cup cover is opened. The blade of traditional food processor mostly all realizes stopping the sword through popping out structure and the cup axle of arbor hole, stops the sword structure complicacy to the arbor hole needs set up to complicated petal form hole, hides the sediment easily after the use (for example the garrulous meat after the minced steak hides easily in the arbor hole), washs the difficulty, influences user experience.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a food processor, aims at realizing stopping the sword fast through comparatively simple structure of stopping the sword, solves the problem that the sediment, washing difficulty are hidden easily to the arbor hole simultaneously.

In order to achieve the above object, the present invention provides a food processor, including:

a host;

the bottom of the stirring cup is provided with a cup shaft; and

the cutter is arranged in the stirring cup and comprises a cutter shaft matched with the main machine in a driving mode, a cutter shaft inner hole for the cup shaft to be inserted is formed in the bottom of the cutter shaft, a gap is formed between the inner peripheral surface of the cutter shaft inner hole and the outer peripheral surface of the cup shaft, the cutter shaft inner hole is provided with a hole top wall opposite to the top end face of the cup shaft, and bulges are arranged on the hole top wall and/or the top end of the cup shaft so that point contact is formed between the cutter shaft and the cup shaft.

In one embodiment, the protrusion is arranged on the top wall of the hole, the top end of the cup shaft is provided with a groove for accommodating the protrusion, and the protrusion forms point contact with the groove wall of the groove.

In one embodiment, the protrusion is provided at a central position of the top wall of the hole.

In one embodiment, the protrusions are provided in any one of a hemispherical shape, an elliptical shape, a conical shape, and a polygonal shape.

In one embodiment, the height distance between one end of the projection far away from the hole top wall and the hole top wall is less than or equal to 5mm; and/or the depth of the inner hole of the cutter shaft is 10 mm-18 mm.

In one embodiment, the cup shaft comprises a spindle body and a boss arranged on the periphery of the top of the spindle body, and a limiting step is formed on the bottom side of the boss.

In one embodiment, the boss is annularly arranged around the periphery of the spindle body; or, the boss is provided with a plurality of, a plurality of the boss is arranged along the circumference interval of main shaft body.

In one embodiment, the cutter further comprises a cutter shaft chock embedded at the bottom of the cutter shaft, the cutter shaft chock is in a cylindrical shape with a downward opening, and an inner cavity of the cutter shaft chock forms the inner hole of the cutter shaft.

In one embodiment, the bottom of the cutter shaft is provided with a jack into which the cutter shaft plug block is inserted, the outer peripheral surface of the cutter shaft plug block is provided with a limiting part, the inner peripheral surface of the jack is provided with a matching part, and the limiting part is in limiting matching with the matching part so as to limit the relative rotation of the cutter shaft plug block and the cutter shaft.

In one embodiment, a counter bore communicated with the insertion hole is formed in the bottom end face of the cutter shaft, the diameter of the counter bore is larger than that of the insertion hole, a step face is formed between the counter bore and the insertion hole, and a limiting flange is arranged on the outer peripheral face of the cutter shaft plug block and is contained in the counter bore and abutted against the step face.

The utility model discloses a food processor stop work when mentioning the host computer or will stir the bowl cover of cup and open, the cutter is because inertia continues the motion, nevertheless because gapped between arbor hole and the cup axle for the equilibrium of arbor is not good easy to take place the slope, and the top of arbor hole forms the point contact through the top face protruding with the cup axle, has further reduced the support area of cup axle to the arbor, makes the arbor take place the slope more easily. When the cutter shaft is inclined, the rotating axis of the cutter is not concentric with the cup shaft, so that the hole wall of the inner hole of the cutter shaft collides with the cup shaft, the direction of the rotating axis of the cutter is changed by the counterforce of the impact, and the change of the direction of the axis can cause the loss of the rotational inertia; after multiple collisions occur in a short time, the axis of the cutter changes direction for multiple times, the rotation inertia is greatly lost, and the rotation tends to stop, so that the quick cutter stop in a short time can be realized. Compared with the prior art in which a complex elastic structure needs to be arranged in the inner hole of the cutter shaft, the technical scheme can realize quick cutter stopping through the interaction between the inner hole of the cutter shaft and the cup shaft, and the cutter stopping structure is simpler. And owing to need not to set up other structures in the arbor hole, the hole depth of arbor hole can design more shallowly, compare simultaneously in prior art need set up the arbor hole into the scheme in complicated petal form hole and compare, this technical scheme's arbor hole only need design for the smooth unthreaded hole in surface can, need not to set up restriction arbor pivoted protruding muscle, thereby can effectively solve the problem that the sediment is hidden easily to the arbor hole after using, wash the difficulty, make the washing of arbor more convenient, the processing technology of arbor hole also can be simplified simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic exploded view of an embodiment of a food processor according to the present invention;

FIG. 2 is a schematic structural view of the cup of FIG. 1;

FIG. 3 is a schematic view of the structure of the cutting tool of FIG. 1;

FIG. 4 is a schematic cross-sectional view of one embodiment of a knife stopping structure of the food processor;

FIG. 5 is a partial enlarged view of the portion A in FIG. 4;

FIG. 6 is a schematic structural view of an embodiment of a knife shaft;

FIG. 7 is a cross-sectional view of the arbor of FIG. 6;

FIG. 8 is a schematic structural view of an embodiment of a knife shaft plug;

FIG. 9 is a bottom view of the knife shaft stop block of FIG. 8;

FIG. 10 is a cross-sectional schematic view of the knife shaft plug of FIG. 8;

fig. 11 is a cross-sectional view of the knife shaft chock of fig. 10 in another state.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if the present invention relates to a directional indication (such as up, down, left, right, front, back, 8230 \8230;, 8230;), the directional indication is only used to explain the relative position relationship between the components in a specific posture, the motion situation, etc., and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the expression "and/or" and/or "is used throughout, the meaning includes three parallel schemes, for example," A and/or B ", including scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a food processor.

Referring to fig. 1 to 5, in an embodiment of the present invention, the food processor includes a main body 10, a mixing cup 20, and a cutter 30. The bottom of the stirring cup 20 is provided with a cup shaft 23; the cutter 30 is arranged in the stirring cup 20, the cutter 30 comprises a cutter shaft 31 in driving fit with the main machine 10, a cutter shaft inner hole 301 for inserting the cup shaft 23 is arranged at the bottom of the cutter shaft 31, a gap is formed between the inner circumferential surface of the cutter shaft inner hole 301 and the outer circumferential surface of the cup shaft, the cutter shaft inner hole 301 is provided with a hole top wall 311 opposite to the top end surface of the cup shaft 23, and the hole top wall 311 and/or the top end of the cup shaft 23 are/is provided with a protrusion 321 so as to enable the cutter shaft 31 and the cup shaft 23 to form point contact.

Specifically, the stirring cup 20 comprises a cup body 21 and a cup cover 22, the cup body 21 is a hollow cavity structure with an open top, the cup cover 22 covers the open top of the cup body 21, and the cup body 21 and the cup cover 22 enclose to form a containing cavity for containing food. The bottom of the cup body 21 of the mixing cup 20 is provided with a cup shaft 23 extending upwards, wherein the cup shaft 23 can be integrally formed with the cup body 21 or the cup shaft 23 is mounted on the bottom of the cup body 21 through a fastener. For example, in the present embodiment, the bottom of the cup shaft 23 is provided with a fixing hole 234, the bottom center of the cup body 21 is provided with a mounting hole, the fixing hole 234 of the cup shaft 23 is aligned with the mounting hole of the cup body 21, and a fastener (e.g., a screw) sequentially passes through the mounting hole and the fixing hole 234 to lock and fix the cup body 21 and the cup shaft 23. The cutter 30 comprises a cutter shaft 31 and a blade 33 connected with the cutter shaft 31, and a cutter shaft inner hole 301 is formed at the bottom of the cutter shaft 31. It should be noted that the arbor inner hole 301 may be directly opened at the bottom of the arbor 31, or when the bottom of the arbor 31 is provided with other components (such as the arbor chock 32), the arbor inner hole 301 may also be opened at other components (such as the arbor chock 32). The arbor inner hole 301 may be a cylindrical hole with a hole wall smoothly opening downwards, and the diameter of the arbor inner hole 301 is larger than the maximum diameter of the cup shaft 23. The maximum diameter of the cup shaft 23 is the diameter corresponding to the thickest shaft section of the cup shaft 23. For example, as shown in fig. 6, the cup shaft 23 includes a main shaft body 231 and an annular boss 232 provided on the outer periphery of the main shaft body 231, and in this case, the outer diameter of the annular boss 232 is the maximum diameter of the cup shaft 23. Because a certain gap is formed between the inner circumferential surface of the cutter shaft inner hole 301 and the outer circumferential surface of the cup shaft 23, the contact area between the cutter shaft inner hole 301 and the cup shaft 23 is as small as possible, and the cutter shaft 31 is easy to incline when the cutter is stopped. And the top wall 311 of the hole and/or the top end of the cup shaft 23 are/is provided with a protrusion 321, so that a point contact is formed between the cutter shaft 31 and the cup shaft 23 to support the cutter shaft 31, and the cutter shaft 31 is more prone to tilting when the cutter is stopped. For example, the protrusion 321 may be disposed on the hole top wall 311, or the protrusion 321 may be disposed on the top end of the cup shaft 23, or both the hole top wall 311 and the top end of the cup shaft 23 may be correspondingly provided with the protrusion 321.

When the cup is used, the cutter shaft inner hole 301 at the bottom of the cutter shaft 31 is matched with the cup shaft 23 in an inserted manner, the cup cover 22 covers the top of the cup body 21, the cup cover 22 is provided with an avoidance hole for exposing the top of the cutter shaft 31, then the host 10 is installed on the cup cover 22, the driving end of the host 10 is in driving connection with the top of the cutter shaft 31, the cutter shaft 31 is driven to rotate through the host 10, and then the blade 33 can be driven to rotate so as to process food. In order to protect the stirring cup 20, optionally, the food processor further includes a buffer sleeve 40 sleeved at the bottom of the stirring cup 20, the buffer sleeve 40 may be a silica gel sleeve or a rubber sleeve, and the like, and the buffer sleeve 40 may buffer vibration generated during operation of the stirring cup 20 and reduce noise generated when the cup body 21 is placed on a table.

The utility model discloses a food processor is in the use, because the upper and lower both ends of arbor 31 carry on spacingly through host computer 10 and cup axle 23 respectively for the rotation axle center of cutter 30 can keep concentric with cup axle 23, and cutter 30 can rotate round cup axle 23 steadily. When the food processor stops working, the main machine 10 is lifted up or the cup cover 22 of the stirring cup 20 is opened, the cutter 30 continues to move due to inertia, but a gap is formed between the cutter shaft inner hole 301 and the cup shaft 23, so that the balance of the cutter shaft 31 is poor, and the cutter shaft 31 is easy to incline, and the top of the cutter shaft inner hole 301 forms point contact with the top end surface of the cup shaft 23 through the bulge 321, so that the supporting area of the cup shaft 23 on the cutter shaft 31 is further reduced, and the cutter shaft 31 is easy to incline. When the cutter shaft 31 is inclined, the rotating axis of the cutter 30 is not concentric with the cup shaft 23, so that the hole wall of the inner hole 301 of the cutter shaft collides with the cup shaft 23, the direction of the rotating axis of the cutter 30 is changed by the counterforce of the collision, and the change of the direction of the axis can cause the loss of the rotational inertia; after multiple collisions occur in a short time, the axis of the cutter 30 changes direction for multiple times, so that the rotation inertia is greatly lost, and the rotation tends to stop, thereby realizing rapid cutter stop in a short time. Compared with the prior art in which a complex elastic structure needs to be arranged in the cutter shaft inner hole 301, the technical scheme can realize quick cutter stopping through the interaction between the cutter shaft inner hole 301 and the cup shaft 23, and the cutter stopping structure is simpler. And owing to need not to set up other structures at arbor hole 301, the hole depth of arbor hole 301 can design more shallowly, compare simultaneously in prior art need set up arbor hole 301 to the scheme in complicated petal form hole compare, this technical scheme's arbor hole 301 only need design for the smooth unthreaded hole in surface can, need not to set up restriction arbor 31 pivoted protruding muscle, thereby can effectively solve the problem that sediment, washing difficulty are hidden easily to use back arbor hole 301, make the washing of arbor 31 more convenient, the processing technology of arbor hole 301 also can be simplified simultaneously.

In one embodiment, the protrusion 321 is disposed on the top wall 311, the top end of the cup shaft 23 is provided with a groove for receiving the protrusion 321, and the protrusion 321 forms a point contact with the groove wall of the groove. In this embodiment, the protrusion 321 can be limited by the groove, so as to further ensure the rotational stability of the knife shaft 31.

In order to ensure the smooth rotation of the arbor 31 during the rotation, as shown in fig. 10, in one embodiment, a protrusion 321 is provided at the center of the top wall 311 of the arbor inner hole 301. Therefore, the contact point of the protrusion 321 and the top end surface of the cup shaft 23 is located at the center position of the cutter shaft 31, so that the overall stress of the cutter shaft 31 is more balanced, and the rotation stability of the cutter shaft 31 in the rotation process can be further ensured.

As for the specific shape of the protrusion 321, there may be various, for example, the protrusion 321 may be provided in any one of a hemispherical shape, an elliptical shape, a conical shape and a polygonal shape, as long as it is ensured that a point contact can be made between the protrusion 321 and the cup shaft 23. For example, in the present embodiment, the projection 321 has a hemispherical shape that is arched toward the top end surface of the cup shaft 23.

As shown in fig. 11, in one embodiment, the height distance H between one end of the protrusion 321 away from the hole top wall 311 and the hole top wall 311 is less than or equal to 5mm. Therefore, the height of the protrusion 321 is not too large, and the excessive occupation of the inner space of the cutter shaft inner hole 301 is avoided; and simultaneously, the top wall 311 of the inner hole 301 of the cutter shaft is convenient to clean.

In one embodiment, the depth of the inner hole 301 of the cutter shaft is 10 mm-18 mm. So, make the hole depth of arbor hole 301 shallower, be convenient for clear up.

In one embodiment, the top of the cup shaft 23 is cylindrical or hemispherical. For example, the top of the cup shaft 23 may be configured as a cylinder, and the top surface of the cup shaft 23 may be configured as a plane. For another example, the top of the cup shaft 23 may be formed in a hemispherical shape, and in this case, the top surface of the cup shaft 23 is formed in an arc shape that is arched upward, so that the point contact area between the protrusion 321 at the top of the cutter shaft inner hole 301 and the top surface of the cup shaft 23 is smaller, and the cutter shaft 31 is more easily inclined when the main body 10 is separated from the cutter shaft 31.

In one embodiment, the difference between the diameter of the cutter shaft inner hole 301 and the maximum diameter of the cutter shaft 31 is 0.2 mm-1 mm. When guaranteeing cup axle 23 to the good support of arbor 31 like this, when having guaranteed that host computer 10 and arbor 31 separate, arbor 31 can smoothly incline, provides the guarantee for stopping the sword fast.

In order to make the size of the cup shaft 23 more suitable, in one embodiment, the height of the cup shaft 23 in the axial direction is 10mm to 30mm, and the maximum diameter of the cup shaft 23 is 5mm to 20mm. For example, the cup shaft 23 includes a main shaft body 231 and an annular boss 232 provided on the outer periphery of the main shaft body 231, and the outer diameter of the annular boss 232 is the maximum diameter of the cup shaft 23.

In order to prevent the cutter 30 from being separated from the cup shaft 23 during the cutting operation and causing injury to the user, as shown in fig. 6 and 7, on the basis of the above embodiment, the cup shaft 23 includes the main shaft body 231 and the boss 232 provided on the outer periphery of the top of the main shaft body 231, and the bottom side of the boss 232 is formed with the limit step 233. Therefore, when the cup cover 22 is opened after the food processor is stopped, the cutter shaft 31 is inclined, if the cutter shaft 31 moves upwards relative to the cup shaft 23, the limiting step 233 on the cup shaft 23 can limit the cutter shaft 31 to a certain extent, the cutter shaft 31 is prevented from being directly separated from the cup shaft 23, and the use safety is further improved. And the peripheral surface of the main shaft body 231 is provided with a boss 232, the distance between the boss 232 and the hole wall of the cutter shaft inner hole 301 is small, and when the cutter shaft 31 inclines, the boss 232 can collide with the hole wall of the cutter shaft inner hole 301 quickly, so that the cutter stopping is further accelerated.

In one embodiment, the dimension L of the retention step 233 in the radial direction of the cup axis 23 is greater than 0.2mm. Therefore, the limiting step 233 has a larger size in the radial direction of the cup shaft 23, the effective blocking effect of the limiting step 233 on the inner hole 301 of the cutter shaft can be increased, and the safety is further improved.

In one embodiment, the boss 232 is disposed annularly around the spindle body 231. Through setting up boss 232 to the annular, when arbor 31 axle center changed to equidirectional not, annular boss 232 homoenergetic collided with arbor hole 301's pore wall to increased rotational inertia's loss speed, made arbor 31 can be in the very short time quick stall, improved safety in utilization.

Alternatively, in other embodiments, the boss 232 is provided in plurality, and the plurality of bosses 232 are arranged at intervals along the circumferential direction of the main shaft body 231. Due to the arrangement, when the main machine 10 is separated from the cutter shaft 31, when the axis of the cutter shaft 31 is changed to different directions, collision and friction between the hole wall of the cutter shaft inner hole 301 and the boss 232 of the cup shaft 23 are ensured to a greater extent, so that the cutter shaft 31 can stop rotating more quickly.

On the basis of the above embodiments, referring to fig. 3 to 5, in one embodiment, the cutter 30 further includes a cutter shaft stopper 32 embedded at the bottom of the cutter shaft 31, the cutter shaft stopper 32 is in a cylindrical shape with a downward opening, and an inner cavity of the cutter shaft stopper 32 forms a cutter shaft inner hole 301. Specifically, the bottom of the cutter shaft 31 is provided with a jack, the cutter shaft plug 32 can be embedded into the jack in an interference fit manner, and the cutter shaft 31 can drive the cutter shaft plug 32 to rotate together when rotating. The arbor stopper 32 includes a top wall facing the top end surface of the cup shaft 23, and a peripheral wall extending downward from the periphery of the top wall, the top wall and the peripheral wall enclosing to form an arbor inner hole 301, and a protrusion 321 provided inside the top wall of the arbor stopper 32. In this embodiment, a relatively large insertion hole is formed in the bottom of the cutter shaft 31, the cutter shaft plug 32 is then embedded, and a relatively small cutter shaft inner hole 301 is formed in the cutter shaft plug 32, so that the wall thickness of the part, where the cutter shaft 31 is matched with the cutter shaft plug 32, is not too thick, and when the cutter shaft 31 is an injection molding part, the shrinkage phenomenon caused by too thick wall thickness during injection molding can be avoided, so that the quality of an injection molding product is ensured.

In order to ensure reliable torque transmission between the cutter shaft 31 and the cutter shaft chock 32, the slip phenomenon is prevented. As shown in fig. 5 and 8, in one embodiment, the bottom of the knife shaft 31 is provided with an insertion hole for inserting the knife shaft plug 32, the outer circumferential surface of the knife shaft plug 32 is provided with a limiting portion 322, the inner circumferential surface of the insertion hole is provided with an engaging portion, and the limiting portion 322 is in limiting engagement with the engaging portion to limit the relative rotation between the knife shaft plug 32 and the knife shaft 31. The limiting matching manner of the limiting part 322 and the matching part is various, for example, the limiting part 322 and the matching part are both arranged in a plane, and circumferential limiting is realized through the abutting of the two planes; or, the limiting part 322 and the matching part can realize circumferential limiting by adopting a mode that a limiting groove is in plug-in fit with a limiting rib.

In one embodiment, the position-limiting portion 322 is a position-limiting rib disposed on the outer peripheral surface of the cutter shaft stopper 32, the mating portion is a position-limiting groove disposed on the inner peripheral surface of the insertion hole, the position-limiting groove extends along the axial direction of the insertion hole and penetrates through the bottom end surface of the cutter shaft 31, and the position-limiting rib is inserted into the position-limiting groove. During assembly, the limiting ribs are aligned to the bottom end openings of the limiting grooves and then pushed inwards, and the cutter shaft plug block 32 and the cutter shaft 31 can be rapidly assembled. When the knife shaft 31 rotates, the groove wall of the limiting groove exerts an acting force on the limiting rib, and the knife shaft chock 32 can be driven to rotate together. And the limiting groove is in limiting fit with the limiting rib, so that the cutter shaft plug block 32 and the cutter shaft 31 can be limited to rotate relatively, and the slipping phenomenon is prevented. Optionally, the limiting rib is arranged in a long strip shape, for example, the limiting rib can extend to the other end along one end of the cutter shaft plug block 32, and the limiting groove is matched with the limiting rib in shape, so as to improve the reliability of limiting matching. In order to further ensure the limiting reliability, optionally, at least two limiting grooves are formed in the inner circumferential surface of the jack at intervals along the circumferential direction, and the number of the limiting ribs is matched with that of the limiting grooves.

In order to limit the insertion depth of the cutter shaft plug 32, as shown in fig. 5 and 8, in one embodiment, a counter bore communicated with the insertion hole is formed in the bottom end surface of the cutter shaft 31, the diameter of the counter bore is larger than that of the insertion hole, a step surface is formed between the counter bore and the insertion hole, a limit flange 323 is formed on the outer peripheral surface of the cutter shaft plug 32, and the limit flange 323 is accommodated in the counter bore and abuts against the step surface. During assembly, the cutter shaft plug block 32 is inserted into the insertion hole of the cutter shaft 31, and when the cutter shaft plug block 32 is assembled in place, the limiting flange 323 on the cutter shaft plug block 32 abuts against the step surface to prevent the cutter shaft plug block 32 from being inserted too deeply, and meanwhile, the fit clearance between the cutter shaft plug block 32 and the cutter shaft 31 can be smaller, and the fit is tighter.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A food processor, comprising:

a host;

the bottom of the stirring cup is provided with a cup shaft; and

the cutter is arranged in the stirring cup and comprises a cutter shaft matched with the main machine in a driving mode, a cutter shaft inner hole for the cup shaft to be inserted is formed in the bottom of the cutter shaft, a gap is formed between the inner peripheral surface of the cutter shaft inner hole and the outer peripheral surface of the cup shaft, the cutter shaft inner hole is provided with a hole top wall opposite to the top end face of the cup shaft, and bulges are arranged on the hole top wall and/or the top end of the cup shaft so that point contact is formed between the cutter shaft and the cup shaft.

2. The food processor of claim 1, wherein the protrusion is disposed on the top wall of the hole, the top end of the cup shaft is provided with a recess for receiving the protrusion, and the protrusion makes point contact with a groove wall of the recess.

3. The food processor of claim 1, wherein the protrusion is centrally located on the top wall of the aperture.

4. The food processor of claim 1, wherein the protrusion is provided in any one of a hemispherical shape, an elliptical shape, a conical shape, and a polygonal shape.

5. The food processor of claim 1, wherein a height distance between an end of the protrusion remote from the aperture top wall and the aperture top wall is less than or equal to 5mm; and/or the depth of the inner hole of the cutter shaft is 10 mm-18 mm.

6. The food processor of claim 1, wherein the cup shaft includes a spindle body and a boss provided at a top periphery of the spindle body, a bottom side of the boss being formed with a limit step.

7. The food processor of claim 6, wherein the boss is annularly disposed around the spindle body; or, the boss is provided with a plurality of, a plurality of the boss is arranged along the circumference interval of main shaft body.

8. The food processor as claimed in any one of claims 1 to 7, wherein the cutter further comprises a cutter shaft chock embedded in the bottom of the cutter shaft, the cutter shaft chock is in a cylindrical shape with a downward opening, and an inner cavity of the cutter shaft chock forms the inner hole of the cutter shaft.

9. The food processor as claimed in claim 8, wherein the bottom of the knife shaft is provided with a hole for the knife shaft plug block to insert into, the outer circumference of the knife shaft plug block is provided with a limiting portion, the inner circumference of the hole is provided with an engaging portion, and the limiting portion is in limit engagement with the engaging portion to limit the relative rotation of the knife shaft plug block and the knife shaft.

10. The food processor as defined in claim 9, wherein the bottom end surface of the cutter shaft is provided with a counter bore communicated with the insertion hole, the diameter of the counter bore is larger than that of the insertion hole, a step surface is formed between the counter bore and the insertion hole, the outer peripheral surface of the cutter shaft plug block is provided with a limit flange, and the limit flange is accommodated in the counter bore and abuts against the step surface.

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