CN218128208U - Bean grinder - Google Patents

Abstract

The utility model discloses a bean grinder, which comprises a bean box, an upper knife sharpening assembly, a lower knife sharpening assembly, a bean grinding box and an adjusting part, wherein the upper knife sharpening assembly comprises an upper knife sharpening and an adjusting seat, and the adjusting seat is fixedly connected with the upper knife sharpening; the lower knife sharpening assembly comprises a lower knife sharpening, and the upper knife sharpening assembly is arranged above the lower knife sharpening assembly; the adjusting component comprises a rotating ring, a transmission ring and an adjusting ring. The outer wall of the adjusting seat is provided with external threads, the inner wall of the adjusting ring is provided with internal threads, and the internal threads are matched with the external threads, so that the adjusting seat can lift along with the rotation of the adjusting ring, and the gap between the upper grinding knife and the lower grinding knife can be adjusted. The gap between the upper grinding knife and the lower grinding knife is adjustable, so that the bean grinder can grind coffee powder with different thicknesses, and the universality is improved. The clearance between the upper knife sharpener and the lower knife sharpener can be adjusted by rotating the bean box, and the adjusting mode is simple and convenient.

Description

Bean grinder

Technical Field

The utility model relates to a grind beans machine field, in particular to grind beans machine.

Background

A bean grinder is a household appliance for grinding coffee beans into coffee powder. The thickness of the coffee powder when making coffee is one of the important variables that determines the final quality of the coffee. The coffee powders with different thicknesses have different tastes, and the types of coffee suitable for making are also different. In order to grind coffee beans conveniently, a bean grinder capable of grinding coffee powder appears in the existing market, but the existing bean grinder can only grind coffee powder with the same thickness generally, and is not beneficial to users to grind coffee powder with different thicknesses according to needs. In the prior art, coffee machines capable of grinding coffee powder with different thicknesses partially through adjustment exist, but the coffee machines need to be provided with additional adjusting parts, and the adjusting mode is complex.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a convenient beans machine that grinds of adjusting.

According to the utility model discloses a beans machine of first aspect embodiment, include

The bean box is used for containing bean materials;

the upper knife sharpening assembly comprises an upper knife sharpening and an adjusting seat, and the adjusting seat is fixedly connected with the upper knife sharpening;

the lower knife sharpening assembly comprises a lower knife sharpening, and the upper knife sharpening assembly is arranged above the lower knife sharpening assembly;

the lower grinding cutter assembly is arranged in the bean grinding box;

the adjusting component comprises a rotating ring, a transmission ring and an adjusting ring, the rotating ring is fixedly connected with the bean box, the transmission ring is linked with the rotating ring, and the transmission ring is linked with the adjusting ring;

the outer wall of the adjusting seat is provided with outer threads, the inner wall of the adjusting ring is provided with inner threads, and the inner threads are matched with the outer threads, so that the adjusting seat can lift along with the rotation of the adjusting ring, and the gap between the upper grinding knife and the lower grinding knife can be adjusted.

According to the utility model discloses a grind beans machine of first aspect embodiment has following beneficial effect at least: the bean box is fixedly connected with the rotating ring, the transmission ring is mutually linked with the adjusting ring, the rotating ring, the transmission ring and the adjusting ring can be driven to rotate by rotating the bean box, the outer wall of the adjusting seat is provided with outer threads, the inner wall of the adjusting ring is provided with inner threads, and the inner threads are matched with the outer threads, so that the adjusting seat can be lifted along with the rotation of the adjusting ring, and the gap between the upper grinding knife and the lower grinding knife can be adjusted. The gap between the upper grinding knife and the lower grinding knife is adjustable, so that the bean grinder can grind coffee powder with different thicknesses, and the universality is improved. The clearance between the upper knife sharpener and the lower knife sharpener can be adjusted by rotating the bean box, and the adjusting mode is simple and convenient.

According to some embodiments of the utility model, lower knife subassembly still includes the doctor blade, the setting of whetting a knife down is in on the doctor blade, the doctor blade includes the base plate and sets up a plurality of scrapers on the base plate, it is a plurality of the scraper encircles the setting and is in on the base plate.

According to the utility model discloses a some embodiments still include drive disk assembly, drive disk assembly includes output shaft and drive output shaft pivoted driver part, the output shaft with scrape whitewashed sword threaded connection.

According to some embodiments of the utility model, still be provided with the partition portion on the circle rotates, the partition portion is provided with the blanking hole, the beans bottom of the case portion is provided with the feed port, it is right that the beans rotates the feed port with space between the blanking hole is adjusted.

According to the utility model discloses a some embodiments, it is provided with first joint portion to rotate the circle, the drive ring is provided with second joint portion, first joint portion with the cooperation of second joint portion, so that rotate the circle with the drive ring links each other.

According to the utility model discloses a some embodiments, the outer wall of regulation circle is provided with the draw-in groove, the inner wall of drive collar is provided with the latch, the latch with the draw-in groove cooperation, so that the regulation circle with the drive collar links each other.

According to the utility model discloses a some embodiments, the inner wall of adjusting the seat is provided with the connection limit, the outer wall of going up the sword is provided with the spread groove, connect the limit with the spread groove cooperation, so that adjust the seat with go up the mutual linkage of whetting a sword.

According to some embodiments of the utility model, be provided with safety switch on grinding the beans box, safety switch includes micro-gap switch, is used for touching micro-gap switch's push rod and with the spring that the push rod is connected, be provided with on the beans case and be used for triggering safety switch's joint circle, the joint circle be provided with the protruding portion that the push rod corresponds.

According to some embodiments of the utility model, still include the casing, the casing be provided with the constant head tank that the protruding portion corresponds, the push rod sets up the constant head tank below.

According to some embodiments of the utility model, grind the beans box and be provided with and dial the point, the below of transmission circle be provided with dial some complex and dial some grooves.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a packaging structure of a bean grinder according to an embodiment of the present invention;

FIG. 2 is a schematic view showing the internal structure of a bean grinder shown in FIG. 1;

FIG. 3 is a disassembled schematic view of the internal structure of a bean grinder shown in FIG. 2;

FIG. 4 is a disassembled schematic view of the internal structure of another angle of a bean grinder shown in FIG. 3;

FIG. 5 is a schematic view of the adjustment ring shown in FIG. 4;

FIG. 6 is a schematic view of the drive ring shown in FIG. 4;

FIG. 7 is a schematic view of the upper blade sharpening shown in FIG. 4;

FIG. 8 is a schematic view of the adjustment block shown in FIG. 4;

fig. 9 is a schematic view illustrating an opened state of a bean box of a packaging structure of a bean grinder according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating a closed state of a bean box of a packaging structure of a bean grinder according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the orientation or positional relationship indicated above, below, front, back, left, right, inside, outside, etc., is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise clear and definite limitations, words such as setting, installing, connecting, assembling, matching, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention by combining the specific contents of the technical solutions.

A bean grinder according to an embodiment of the present invention will be described with reference to fig. 1 to 10.

The utility model discloses a bean grinder, refer to fig. 1 to 10, comprising a bean box 100, an upper knife sharpening assembly, a lower knife sharpening assembly, a bean grinding box 610 and an adjusting component, wherein the bean box 100 is used for containing bean materials; the upper sharpening assembly comprises an upper sharpening 210 and an adjusting seat 220, and the adjusting seat 220 is fixedly connected with the upper sharpening 210; the lower knife sharpening assembly comprises a lower knife sharpening 310, and the upper knife sharpening assembly is arranged above the lower knife sharpening assembly; the lower grinding cutter component is arranged in the bean grinding box 610; the adjusting component comprises a rotating ring 410, a transmission ring 420 and an adjusting ring 430, the rotating ring 410 is fixedly connected with the bean box 100, the transmission ring 420 and the rotating ring 410 are linked with each other, and the transmission ring 420 and the adjusting ring 430 are linked with each other; wherein, the outer wall of the adjusting seat 220 is provided with an external thread 221, the inner wall of the adjusting ring 430 is provided with an internal thread 431, and the internal thread 431 is matched with the external thread 221, so that the adjusting seat 220 is lifted along with the rotation of the adjusting ring 430, and the gap between the upper sharpening knife 210 and the lower sharpening knife 310 is adjusted. The bean box 100 is fixedly connected with the rotating ring 410, specifically, the bean box 100 is fixedly arranged on the rotating ring 410 through threaded connection, and the bean box 100 can drive the rotating ring 410 to rotate. The transmission ring 420 and the rotation ring 410 are linked with each other, the transmission ring 420 and the adjustment ring 430 are linked with each other, the rotation ring 410, the transmission ring 420 and the adjustment ring 430 can be driven to rotate by rotating the bean box 100, the outer wall of the adjustment seat 220 is provided with the outer threads 221, the inner wall of the adjustment ring 430 is provided with the inner threads 431, and the inner threads 431 are matched with the outer threads 221, so that the adjustment seat 220 can ascend and descend along with the rotation of the adjustment ring 430, and the gap between the upper sharpening blade 210 and the lower sharpening blade 310 can be adjusted. The bean box 100 and the bean box 100 can be rotated to adjust the gap between the upper knife sharpener 210 and the lower knife sharpener 310, and the adjusting mode is simple and convenient.

Specifically, referring to fig. 4, 5 and 8, the outer wall of the adjustment seat 220 is provided with external threads 221, the inner wall of the adjustment ring 430 is provided with internal threads 431, and the rotation of the adjustment ring 430 causes the external threads 221 of the adjustment seat 220 to threadedly rotate along the internal threads 431 of the adjustment ring 430, so that the upper sharpening assembly can move in the longitudinal direction to achieve the lifting of the upper sharpening assembly. The lifting of the upper sharpening component enables the gap between the upper sharpening blade 210 and the lower sharpening blade 310 to be adjustable, so that coffee powder with different thicknesses can be ground conveniently, and the universality of the bean grinder is improved.

It should be noted that, in order to adjust the clearance between last sharpener 210 and the lower sharpener 310 for convenience, the utility model discloses still be provided with adjusting part, adjusting part includes and rotates circle 410, drive ring 420 and regulation circle 430, rotates circle 410 and bean box 100 fixed connection, and drive ring 420 and the mutual linkage of circle 410 of rotating, drive ring 420 and the mutual linkage of regulation circle 430. The rotation of bean box 100 can drive rotation circle 410, drive ring 420 and regulation circle 430 in proper order and rotate, and the rotation of regulation circle 430 can drive and adjust seat 220 and go up and down, goes up sharpening assembly and regulation seat 220 fixed connection to adjust the clearance between last sharpening assembly and lower sharpener 310.

Referring to fig. 3 and 4, in some embodiments, the lower sharpener assembly further includes a doctor blade, the lower sharpener 310 is disposed on the doctor blade, the doctor blade includes a substrate 311 and a plurality of scrapers 312 disposed on the substrate 311, and the plurality of scrapers 312 are circumferentially disposed on the substrate 311. The scraper 312 is arranged on the base plate 311 in a surrounding manner, the lower grinding blade 310 is arranged on the powder scraper, and the base plate 311, the lower grinding blade 310 and the scraper 312 can move synchronously and keep stable.

Referring to fig. 3 and 4, in some embodiments, the powder scraping device further includes a transmission member 500, the transmission member 500 includes an output shaft 510 and a driving member 520 for driving the output shaft 510 to rotate, and the output shaft 510 is threadedly connected to the powder scraping blade. The transmission part 500 and the lower grinding knife assembly are of a separated structure, the output shaft 510 and the powder scraping knife are in transmission connection in a threaded connection mode, when the axis of the output shaft 510 is not coaxial with the axis of the powder scraping knife, the output shaft 510 cannot influence the coaxiality between the powder scraping knife, the lower grinding knife 310 and the upper grinding knife 210, therefore, the assembly error between the output shaft 510 and the powder scraping knife is effectively avoided, the interval between the upper grinding knife 210 and the lower grinding knife 310 cannot be changed due to the assembly error between the output shaft 510 and the powder scraping knife, and therefore the upper grinding knife 210 and the lower grinding knife 310 are guaranteed to grind coffee powder with uniform thickness. The connection form of the threaded connection is simple to operate, assembly is facilitated, and assembly efficiency can be improved. It will be appreciated that in some embodiments, the transmission member 500 is provided as a gearbox including an electric motor as the drive member 520, a gear set for transmitting power, and an output shaft 510. The output shaft 510 is in threaded connection with the doctor blade, and can transmit the rotation of the motor to the doctor blade to drive the doctor blade and the sharpening blade 310 on the doctor blade to rotate.

Referring to fig. 4, 9 and 10, in some embodiments, the rotating ring 410 is further provided with a partition 120, the partition 120 is provided with a blanking hole 121, the bottom of the bean box 100 is provided with a feeding hole, and the bean box 100 rotates to adjust the gap between the feeding hole and the blanking hole 121. Specifically, partition portion 120 equipartition has three blanking hole 121, and bean box 100 bottom corresponds is provided with three feed port, and bean box 100 bottom still is provided with the grid 122 of separating the formation three feed port, through rotating bean box 100, can adjust the space between blanking hole 121 and the feed port to the blanking volume to beans material is controlled. Referring to fig. 9, when the bean box 100 is in an open state, when the bean box 100 is rotated to the position where the blanking hole 121 completely corresponds to the feeding hole, the grating 122 is located outside the blanking hole 121, the gap between the blanking hole 121 and the feeding hole is the largest, and the amount of beans falling into the bean grinding box 610 from the bean box 100 is the largest. Referring to fig. 10, the bean box 100 is in a closed state, at this time, the bean box 100 rotates to rotate the grille 122 to the blanking hole 121, the grille 122 shields the blanking hole 121, and a gap between the blanking hole 121 and the feeding hole is closed, so that the bean material cannot fall into the bean grinding box 610 from the bean box 100. It should be noted that the two states in fig. 9 and 10 are two limit states of the maximum amount of material to be dropped and zero amount of material to be dropped, respectively, and the amount of material to be dropped can be adjusted by rotating the bean box 100 between the two limit states. It is understood that the blanking holes 121 and the feeding holes can be provided in other numbers, such as one, two, four, etc., without affecting the control of the blanking amount.

Referring to fig. 3, 4, 5 and 6, in some embodiments, the rotating ring 410 is provided with a first clamping portion 411, the transmission ring 420 is provided with a second clamping portion 421, and the first clamping portion 411 and the second clamping portion 421 are matched to enable the rotating ring 410 and the transmission ring 420 to be linked with each other. One side of the rotating ring 410 protrudes outwards to form a first clamping portion 411, one side of the transmission ring 420 protrudes outwards to form a second clamping portion 421, the transmission ring 420 is sleeved outside the transmission ring 420, and the first clamping portion 411 is matched with the second clamping portion 421, so that the rotating ring 410 and the transmission ring 420 are linked with each other, and the rotating ring 410 and the transmission ring 420 are prevented from rotating relatively. The rotating ring 410 is fixedly connected with the bean box 100, the bean box 100 rotates to drive the rotating ring 410 to rotate, the rotating ring 410 drives the transmission ring 420 to rotate, the rotation of the bean box 100 can be transmitted, and finally the adjustment of the gap between the upper sharpening knife 210 and the lower sharpening knife 310 is realized. It is understood that other connection forms may be provided between the rotating ring 410 and the driving ring 420, as long as the mutual linkage between the rotating ring 410 and the driving ring 420 can be realized.

Referring to fig. 3, 4 and 6, in some embodiments, the outer wall of the adjusting ring 430 is provided with a clamping groove 432, the inner wall of the driving ring 420 is provided with a clamping tooth 423, and the clamping tooth 423 is matched with the clamping groove 432, so that the adjusting ring 430 and the driving ring 420 are linked with each other. The outer wall of the adjusting ring 430 is provided with a plurality of clamping grooves 432, the inner wall of the transmission ring 420 is provided with clamping teeth 423, the transmission ring 420 is sleeved outside the adjusting ring 430, and the clamping teeth 423 on the inner wall of the transmission ring 420 are inserted into the clamping grooves 432 on the outer wall of the adjusting ring 430, so that the transmission ring 420 and the adjusting ring 430 are linked with each other, and the adjusting ring 430 and the transmission ring 420 are prevented from rotating relatively. Bean box 100 and rotation circle 410 fixed connection, bean box 100 rotates and drives rotation circle 410 and rotate, and rotation circle 410 drives transmission circle 420 and rotates, and transmission circle 420 and regulation circle 430 linkage can transmit bean box 100's rotation, finally realize the regulation to the clearance between last sword 210 and the lower sword 310 of whetting a knife. It is understood that other connection forms may be provided between the adjusting ring 430 and the driving ring 420, as long as the mutual linkage between the adjusting ring 430 and the driving ring 420 is realized.

In some embodiments, the inner wall of the adjusting seat 220 is provided with a connecting edge 222, the outer wall of the upper blade 210 is provided with a connecting groove 211, and the connecting edge 222 is matched with the connecting groove 211 so as to enable the adjusting seat 220 and the upper blade 210 to be mutually linked. Adjust seat 220 and be provided with and connect limit 222, go up to whet a knife 210 and be provided with connecting groove 211, adjust the seat 220 cover and establish outside last whet a knife 210, connect limit 222 card in connecting groove 211, can realize adjusting seat 220 and the mutual linkage of regulation circle 430. The adjusting seat 220 is lifted along with the rotation of the adjusting ring 430, the adjusting seat 220 drives the upper knife blade 210 to lift, and the gap between the upper knife blade 210 and the lower knife blade 310 can be adjusted, so that the thickness of the ground coffee powder is adjusted.

Referring to fig. 2, in some embodiments, in order to improve the safety of the bean grinding machine, a safety switch is disposed on the bean grinding box 610, the safety switch includes a micro switch 611, a push rod 612 for activating the micro switch 611, and a spring 613 connected to the push rod 612, a snap ring 110 for activating the safety switch is disposed on the bean box 100, and the snap ring 110 is provided with a protrusion 111 corresponding to the push rod 612. When the push rod 612 does not receive the external force, the push rod 612 is bounced upwards under the action of the spring 613, the micro switch 611 is not triggered, and the bean grinder is not started at this time. After the bean box 100 is accurately placed, the protrusion 111 on the clamping ring 110 is placed above the push rod 612 and presses the push rod 612 downwards, and the push rod 612 moves downwards to trigger the micro switch 611, so that the bean grinding machine can be normally started to grind beans after being electrified. The safety switch is arranged to prevent the bean grinding machine from working when the bean box 100 is taken up, so that the idling of the bean grinding machine is avoided, and the safety performance of the bean grinding machine is improved.

Referring to fig. 1 and 2, in some embodiments, a housing 600 is further included, the housing 600 is provided with a positioning groove corresponding to the protrusion 111, and the push rod 612 is disposed below the positioning groove. Bean box 100 is placed in casing 600 top, and casing 600 is provided with the constant head tank, and push rod 612 corresponds the setting in the constant head tank below. Clamping ring 110 is provided with protruding portion 111, and protruding portion 111 and constant head tank counterpoint cooperation can carry on spacingly to bean box 100, ensure that bean box 100 can accurately place on casing 600. When the bean box 100 is accurately placed on the housing 600, the protrusion 111 of the clamping ring 110 penetrates through the positioning groove and presses on the push rod 612, so that the push rod 612 can be pressed downwards, and the push rod 612 moves downwards to trigger the micro switch 611, so that the bean grinder is powered on and started normally. The setting of casing 600 can be separated the part of grinding the beans machine with the external world, protects the inner structure of grinding the beans machine, improves the life who grinds the beans machine.

Referring to fig. 4 and 6, in some embodiments, the bean grinding cartridge 610 is provided with a kick point 614, and a kick point 614 slot 422 is provided below the drive ring 420 to mate with the kick point 614. When the bean box 100 is rotated to adjust the gap between the upper sharpening blade 210 and the lower sharpening blade 310, the bean box 100 drives the transmission ring 420 to rotate, the poking point 614 on the bean grinding box 610 can rotate relative to the poking point 614 groove 422 on the transmission ring 420, and the poking point 614 makes a sound when rotating on the poking point 614 groove 422, so that a user can conveniently control the rotation amount of the transmission ring 420. Dial a little 614 groove 422 and be provided with a plurality of holes that hold and dial a little 614, can grade the rotation of driving ring 420, clearly understand to embody the rotation volume of driving ring 420, the user of being convenient for carries out hierarchical regulation to the crocus thickness.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A bean grinder, comprising:

the bean box is used for containing bean materials;

the upper knife sharpening assembly comprises an upper knife sharpening and an adjusting seat, and the adjusting seat is fixedly connected with the upper knife sharpening;

the lower knife sharpening assembly comprises a lower knife sharpening, and the upper knife sharpening assembly is arranged above the lower knife sharpening assembly;

the lower grinding cutter assembly is arranged in the bean grinding box;

the adjusting component comprises a rotating ring, a transmission ring and an adjusting ring, the rotating ring is fixedly connected with the bean box, the transmission ring is linked with the rotating ring, and the transmission ring is linked with the adjusting ring;

wherein, the outer wall of adjusting the seat is provided with outer screw tooth, the inner wall of adjusting the circle is provided with the internal thread, the internal thread with outer screw tooth cooperation, adjust the seat along with the rotation of adjusting the circle and go up and down, it is right go up sharpen with clearance between the lower sharpening is adjusted.

2. The bean grinder of claim 1, wherein the lower grinder assembly further comprises a doctor blade, the lower grinder blade is disposed on the doctor blade, the doctor blade comprises a base plate and a plurality of scrapers disposed on the base plate, and the plurality of scrapers are disposed around the base plate.

3. The bean grinder of claim 2, further comprising a transmission member, wherein the transmission member comprises an output shaft and a driving member for driving the output shaft to rotate, and the output shaft is in threaded connection with the powder scraping knife.

4. The bean grinder as claimed in claim 1, wherein the rotating ring is further provided with a separating part, the separating part is provided with a blanking hole, the bottom of the bean box is provided with a feeding hole, and the bean box rotates to adjust the gap between the feeding hole and the blanking hole.

5. The bean grinder according to claim 1, wherein the rotating ring is provided with a first clamping portion, the transmission ring is provided with a second clamping portion, and the first clamping portion is matched with the second clamping portion so that the rotating ring and the transmission ring are linked with each other.

6. A bean grinder as claimed in claim 1, wherein the outer wall of the adjusting ring is provided with a clamping groove, the inner wall of the transmission ring is provided with a latch, and the latch cooperates with the clamping groove to enable the adjusting ring and the transmission ring to be linked with each other.

7. The bean grinder according to claim 1, wherein the inner wall of the adjusting seat is provided with a connecting edge, the outer wall of the upper grinding knife is provided with a connecting groove, and the connecting edge is matched with the connecting groove, so that the adjusting seat and the upper grinding knife are linked with each other.

8. The bean grinding machine according to claim 1, wherein a safety switch is arranged on the bean grinding box, the safety switch comprises a micro switch, a push rod for triggering the micro switch and a spring connected with the push rod, a clamping ring for triggering the safety switch is arranged on the bean box, and the clamping ring is provided with a protruding part corresponding to the push rod.

9. A bean grinder as claimed in claim 8, further comprising a housing provided with a positioning groove corresponding to the protrusion, the push rod being disposed below the positioning groove.

10. A bean grinder as claimed in claim 1, wherein the bean grinding box is provided with a poking point, and a poking point groove matched with the poking point is arranged below the transmission ring.

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