CN217959816U

CN217959816U - Hand-operated bean grinder

Info

Publication number: CN217959816U
Application number: CN202221918324.XU
Authority: CN
Inventors: 周峻炜
Original assignee: Hario Shanghai Commerce And Trade Co ltd
Current assignee: Hario Shanghai Commerce And Trade Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-06
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to a hand-operated bean grinder, which comprises an upper body, a bean grinding mechanism, a lower body and a fixing ring which is detachably connected between the upper body and the lower body; the solid fixed ring inner circle is equipped with inside bellied boss, can play fine fixed action to the external grinding core, the outer grinding core activity space all around has been reduced, guarantee that it can not take place to shift because of exogenic action in the use, the particle homogeneity of hand ground coffee powder has been guaranteed, make user's grinding experience more smooth, and this solid fixed ring and last body, the detachable connected mode between the lower body, it is more convenient also to make the installation and the dismantlement of bean grinder, need not with the help of other instruments, it washs bean grinder to make things convenient for more after the dismantlement, also can be more labour saving and time saving.

Description

Hand-operated bean grinder

Technical Field

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

Background

Two parts about hand mill beans machine body structure on the market at present divide into usually, grind the clearance through adjusting between outer core and the interior core and realize the grinding to coffee bean, however most of mill beans machines do not have obvious structure to carry out the fixed of position to outer core, can make outer core shift because of centraxonial rotation or other exogenic actions take place easily in the use, not only can make the abrasive particle inhomogeneous because the clearance of outer core appears undulant, and can lead to user's grinding experience not smooth. In addition, the outer grinding core is fixed and installed by screws, and the outer grinding core is installed and disassembled by means of an external tool, so that the operation is complex, and the outer grinding core is not easy to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims at improving the defects mentioned above and providing a hand-operated bean grinder.

In order to achieve the above purpose, the utility model adopts the technical scheme as follows:

a hand operated bean grinder comprising:

an upper body;

the bean grinding mechanism is assembled in the upper body and comprises a middle shaft, an inner grinding core, an outer grinding core, an adjusting sheet and a knob, the middle shaft penetrates through the inner grinding core and is connected to an inner hole of the adjusting sheet, the knob is arranged on the lower side of the adjusting sheet and is in threaded connection with the lower end of the middle shaft, and the outer grinding core is sleeved on the outer side of the inner grinding core and forms a grinding space;

the lower body is internally provided with a hollow structure for containing or passing through grinding powder;

and the inner ring of the fixing ring is provided with an inward convex boss, the boss is used for abutting against the bottom end of the outer grinding core, and the fixing ring is detachably connected between the upper body and the lower body.

Preferably, the fixing ring is connected with the upper body through threads or a buckle, and the fixing ring is connected with the lower body through a buckle or threads.

Preferably, the thread pitch of the fixing ring in threaded connection with the lower body is larger than the thread pitch of the fixing ring in threaded connection with the upper body.

Preferably, the boss is arranged as an annular platform along the circumferential direction and used for abutting against the bottom end of the outer grinding core.

Preferably, the abutting edge of the fixing ring and the outer grinding core is a preset distance away from the inner wall of the outer grinding core, and the preset distance is 1/3-2/3 of the thickness of the inner wall of the outer grinding core.

Preferably, the outer ring of the upper end of the fixing ring is also provided with at least 2 convex feet.

Preferably, the bean grinding mechanism further comprises a first bearing, a second bearing, a baffle and a spring which are sequentially penetrated through by the middle shaft, and part of the spring is positioned in an inner hole of the inner grinding core.

Preferably, the bean grinder further comprises a handle, and one end of the handle is sleeved at the upper end of the middle shaft.

Preferably, the upper end of the middle shaft is a polygonal body with a chamfer structure.

Preferably, the hand-operated bean grinder further comprises a silica gel sleeve, the silica gel sleeve is sleeved on the outer side of the fixing ring, and the silica gel sleeve is provided with a through hole for the handle to be inserted.

Compared with the prior art, the utility model discloses hand mill beans machine's beneficial effect is:

(1) Through the design of the boss which protrudes inwards at the inner ring of the fixing ring, the outer grinding core can be well fixed, the moving space around the outer grinding core is reduced, the outer grinding core is prevented from shifting due to the action of external force in the using process, the particle uniformity of the hand-ground coffee powder is ensured, and the grinding experience of a user is smoother;

(2) The bean grinder can be conveniently disassembled by connecting the upper end of the fixing ring with the upper body in a threaded manner or in a buckling manner, and connecting the lower end of the fixing ring with the lower body in a buckling manner or in a threaded manner, and is more convenient to clean after being disassembled without the help of other tools, so that the time and labor are saved;

(3) The outer ring at the upper end of the fixing ring is provided with the convex feet which are distributed at equal intervals, so that the convenience of holding by a user is improved, the force application is facilitated, and the operability in the mounting and dismounting processes is improved;

(4) The middle shaft is fixed through the first bearing and the second bearing, so that the stability of the middle shaft is improved, the middle shaft is prevented from shifting in the use process, and the experience of a user is improved; meanwhile, a baffle is arranged between the second bearing and the spring, so that the contact between the spring and the second bearing can be supported, the friction resistance is reduced, the spring is prevented from directly rubbing the second bearing, and the fixing effect of the bearing on the middle shaft is ensured;

(5) The upper end of the middle shaft is designed into the polygonal body with the chamfer structure, so that the handle can be conveniently installed on the middle shaft, the installation firmness is guaranteed, and the handle is not easy to fall off.

Drawings

Fig. 1 is an exploded perspective view of a hand bean grinder according to embodiment 1.

FIG. 2 is a sectional view of the hand bean grinder of example 1.

Fig. 3 is an enlarged view of the fixing ring in embodiment 1.

Fig. 4 is a schematic view of the fitting of the fixing ring and the upper body in embodiment 1.

Fig. 5 is a schematic view of the fitting of the fixing ring and the lower body in embodiment 1.

FIG. 6 is a perspective view of a hand bean grinder in accordance with embodiment 1;

fig. 7 is an exploded perspective view of the hand bean grinder of embodiment 2.

FIG. 8 is a sectional view of a hand bean grinder according to example 2.

Fig. 9 is an enlarged view of the fixing ring in embodiment 2.

Fig. 10 is a schematic view of the fitting of the fixing ring and the upper body in embodiment 2.

Fig. 11 is a schematic view of the fitting of the fixing ring and the lower body in embodiment 2.

Description of reference numerals:

1-handle 2-upper cover 3-middle shaft 4-first bearing 5-upper body 6-second bearing

7-separation blade 8-spring 9-external grinding core 10-internal grinding core 11-fixed ring 12-regulating blade

13-knob 14-silica gel sleeve 15-lower body 16-groove 17-first external thread

18-first internal thread 19-annular platform 20-projection 21-lug 22-second external thread

23-second internal thread 24-hollow groove 25-hollow structure

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1-3, the present embodiment provides a hand-operated bean grinder, comprising:

the upper body 5 is provided with an upper cover 2 which is detachably connected, and the upper cover 2 is provided with a central hole;

the bean grinding mechanism is assembled in an upper body 5 and comprises a middle shaft 3, a first bearing 4, a second bearing 6, a baffle 7, a spring 8, an inner grinding core 10, an outer grinding core 9, an adjusting sheet 12 and a knob 13, wherein the middle shaft 3 sequentially penetrates through the first bearing 4, the second bearing 6, the baffle 7, the spring 8 and the inner grinding core 10 and is connected to an inner hole of the adjusting sheet 12, the upper end of the middle shaft 3 penetrates through a central hole to be exposed out of the upper body 5, the exposed middle shaft 3 is used for installing a handle 1, the handle 1 is connected to the middle shaft 3 to drive the middle shaft 3 to rotate clockwise to drive the inner grinding core 10, the knob 13 is arranged on the lower side of the adjusting sheet 12 and is in threaded connection with the lower end of the middle shaft 3, the outer grinding core 9 is sleeved on the outer side of the inner grinding core 10 to form a grinding space, the knob 13 is used for driving the adjusting sheet 12 to move up and down along the middle shaft 3 to further drive the inner grinding core 10, and as part of the structure of the spring 8 is positioned in the inner grinding core 10, the spring can be driven by the inner grinding core 10 to realize compression in different degrees, so as to control the grinding effect between the grinding core 9 and the inner grinding gap between the inner grinding core 10.

The first bearing 4 and the second bearing 6 fix the middle shaft 3, the position deviation of the middle shaft 3 in the using process can be prevented, the shaking feeling is reduced, the using experience feeling of a product is increased, the first bearing 4 and the second bearing 6 can be disassembled and replaced, the manufacturing and assembling are easy, and the production cost is low.

Furtherly, set up separation blade 7 between second bearing 6 and spring 8, this separation blade 7 can avoid spring 8 and second bearing 6's direct contact, has reduced frictional resistance, avoids spring 8 to second bearing 6's direct friction effect, reduces second bearing 6's damage, improves life.

Lower body 15 is equipped with hollow structure 25 in it for splendid attire or through the ground powder, specifically, in the use, the user drives axis 3 through twist grip 1 and makes coffee beans grind into powder after the grinding space of outer abrasive core 9 and interior abrasive core 10 and the mutual effect of the two, falls into hollow structure 25 of lower body 15 through the grinding clearance between the interior abrasive core of inside and outside, accomplishes the collection of coffee powder.

A fixing ring 11, the inner ring of which is provided with an annular platform 19, the annular platform 19 is used for abutting against the bottom end of the outer grinding core 9, and the fixing ring 11 is detachably connected between the upper body 5 and the lower body 15;

one end of the handle 1 is sleeved at the upper end of the middle shaft 3.

In this application solid fixed ring with go up the preferred threaded connection of connected mode between the body, this is because to this application grind that it gets the powder and accomplish in the body down to bean grinder product, and go up and need not often to dismantle between body and the solid fixed ring, and threaded connection compares its connection in the mode of buckle connection more firm, and the connected mode between solid fixed ring and the lower body is the buckle connection, because every completion is ground, just need dismantle down collecting of body in order to accomplish coffee powder, therefore the mode of buckle connection is more convenient.

Fixed ring 11 and last body 5 pass through threaded connection, and fixed ring 11 passes through the buckle with lower body 15 to be connected, only needs to carry out slight rotation and can take off when dismantling body 15 down, and this kind of design can not be because of the installation or dismantle in the great fixed effect that influences the threaded connection of last body 5 of rotation angle, then will fix ring 11 and last body 5 rotation and pull down again, need not with the help of other instruments, convenient beans grinding machine's dismantlement and washing.

Referring to fig. 3-4, a first external thread 17 is disposed at the bottom end of the upper body 5, a first internal thread 18 matched with the first external thread 17 of the upper body 5 is disposed at the inner ring at the upper end of the fixing ring 11, and the upper body 5 and the fixing ring 11 are screwed together by the mutual matching of the first external thread 17 and the first internal thread.

Referring to fig. 3 and 5, the inner ring at the upper end of the lower body 15 is provided with a groove 16, the outer ring at the lower end of the fixing ring 11 is provided with a protrusion 20 matched with the groove 16 of the lower body 15, the lower body 15 and the fixing ring 11 are connected in a snap-fit manner through the mutual matching of the groove 16 and the protrusion 20, and the lower body 15 can be conveniently detached to easily take powder.

The number of the protrusions 20 is 4, and the protrusions are distributed at equal intervals along the outer ring of the lower end of the fixing ring 11.

Annular platform 19 is circumference along the middle part of solid fixed ring 11 and distributes, be used for supporting the bottom of outer grinding core 9, be favorable to increasing the area of contact between solid fixed ring 11 and the outer grinding core 9 on the one hand, the installation has been injectd the activity space all around of outer grinding core 9 greatly after screwing up, play fine fixed effect, the problem of the easy skew of outer grinding core 9 in the use has been solved, guarantee the granularity of grinding the coffee powder simultaneously evenly, improve user's grinding experience.

Further, the inner wall of the outer grinding core is away from the abutting edge of the outer grinding core 9 by a preset distance, the preset distance is 1/3-2/3 of the thickness of the inner wall of the outer grinding core, the contact between the fixed ring 11 and the inner grinding core 10 can be further avoided through the preset distance, the influence on the up-down movement of the inner grinding core 10 and the interaction between the outer grinding core 9 are further avoided, and the grinding effect and the smoothness are guaranteed.

The upper end outer lane of solid fixed ring 11 still is equipped with 4 protruding feet 21, and this protruding foot 21 is equidistant distribution along solid fixed ring 11's outer lane, and the design of protruding foot 21 has improved the handheld convenience of user, and convenient gripping is favorable to exerting of power, has increased the installation and has dismantled the maneuverability of in-process.

Axis 3's upper end is the hexagon cube that has the chamfer structure, and the chamfer structure is favorable to handle 1 to install axis 3, and the hexagon can guarantee that handle 1 installs the fastness of axis 3, be difficult for droing, also need not to reuse extra fastener.

In this embodiment, the hand-operated bean grinder further includes a silica gel sleeve 14, the silica gel sleeve 14 is sleeved outside the fixing ring 11, the silica gel sleeve 14 has a hollow groove 24 for the handle 1 to be inserted into, specifically, please refer to fig. 6, the hollow groove 24 is arranged on one side of the silica gel sleeve 14, when the hand-operated bean grinder is idle, the handle 1 can be taken down and inserted into the hollow groove 24 to complete storage, and therefore the occupied space of the hand-operated bean grinder is reduced.

Example 2

Referring to fig. 7-9, the present embodiment provides a hand-operated bean grinder, comprising:

Fix axis 3 through first bearing 4 and second bearing 6, can prevent that axis 3 from taking place the skew of position in the use, reduce simultaneously and shake dynamic, increase the use of product and experience the sense, and first bearing 4 and second bearing 6 can dismantle the change to easily make, assemble, low in production cost.

Further, a separation blade 7 is arranged between the second bearing 6 and the spring 8, the separation blade 7 can avoid the contact between the spring 8 and the second bearing 6, the friction resistance is reduced, the direct friction effect of the spring 8 on the second bearing 6 is avoided, the damage to the second bearing 6 is reduced, and the service life is prolonged.

A fixing ring 11, the inner ring of which is provided with an annular platform 19, the annular platform 19 is used for abutting against the bottom end of the outer grinding core 9, and the fixing ring 11 is detachably connected between the upper body 5 and the lower body 15.

One end of the handle 1 is provided with a through hole, and the handle 1 is sleeved at the upper end of the middle shaft 3 through the through hole.

The fixing ring 11 is connected with the upper body 5 through threads, and the fixing ring 11 is connected with the lower body 15 through threads.

Referring to fig. 9 and 10, a first external thread 17 is disposed at the bottom end of the upper body 5, a first internal thread 18 matched with the first external thread 17 of the upper body 5 is disposed at the inner ring at the upper end of the fixing ring 11, and the upper body 5 is in threaded connection with the fixing ring 11 through the mutual matching of the first external thread 17 and the first internal thread 18.

Referring to fig. 9 and 11, the outer ring of the upper end of the lower body 15 is provided with a second external thread 22, the inner ring of the lower end of the fixing ring 11 is provided with a second internal thread 23 matching with the second external thread 22, and the lower body 15 is screwed to the fixing ring 11 by the cooperation of the second external thread 22 and the second internal thread 23.

Further, the pitch of second internal thread 23 is greater than the pitch of first internal thread 18, because the pitch of second internal thread 23 is great relatively, the area of contact of interlock is less relatively between the screw thread when screwing up promptly, consequently adopt relatively little power just can dismantle body 15 down earlier when dismantling, then carry out the dismantlement of solid fixed ring 11 and last body 5 again, because it need not often to dismantle to go up between body 5 and the solid fixed ring 11, consequently adopt relatively less pitch can make solid fixed ring 11 and last body 5 between be connected also some more firm, simultaneously because once grinding is accomplished, just need dismantle down the collection of body 15 in order to accomplish the coffee powder, consequently convenient dismantlement more of this kind of design, increase user's operatable convenience.

The upper end of axis 3 is the hexagon body that has the chamfer structure, and the chamfer structure is favorable to handle 1 to install axis 3, and the hexagon body can guarantee that handle 1 installs the fastness of axis 3, be difficult for droing, also need not to reuse extra fastener.

The above is only some preferred embodiments of the present invention, and equivalent replacements and improvements made by those skilled in the art are all within the protection scope of the present invention without departing from the concept of the present invention.

Claims

1. A hand-operated bean grinder, comprising:

an upper body;

2. The hand bean grinder of claim 1, wherein the fixing ring is in threaded or snap-fit connection with the upper body, and the fixing ring is in snap-fit or threaded connection with the lower body.

3. The hand bean grinder of claim 2, wherein the thread pitch of the fixing ring in threaded connection with the lower body is greater than the thread pitch of the fixing ring in threaded connection with the upper body.

4. A hand bean grinder as claimed in claim 1, wherein the bosses are circumferentially arranged as annular platforms for abutting against the bottom end of the outer grinding core.

5. A hand bean grinder as claimed in claim 4, wherein the abutment edge of the fixing ring and the outer grinding core is at a predetermined distance from the inner wall of the outer grinding core, the predetermined distance being 1/3-2/3 of the thickness of the inner wall of the outer grinding core.

6. The hand bean grinder of claim 1, wherein the upper outer ring of the fixing ring is further provided with at least 2 convex feet.

7. The hand bean grinder of claim 1, wherein the bean grinding mechanism further comprises a first bearing, a second bearing, a baffle plate and a spring which are sequentially penetrated through by the middle shaft, and part of the spring is positioned in the inner hole of the inner grinding core.

8. The hand bean grinder of claim 1, further comprising a handle, wherein a end of the handle is sleeved on the upper end of the central shaft.

9. The hand operated bean grinder as claimed in claim 8, wherein the upper end of the central shaft is a polygonal body having a chamfered structure.

10. The hand bean grinder according to claim 8, further comprising a silicone sleeve, wherein the silicone sleeve is sleeved outside the fixing ring, and the silicone sleeve is provided with a hollow groove for the handle to be inserted.