CN220001563U - External-adjusting type coffee grinding device with adjustable inner core - Google Patents

Abstract

The utility model relates to an external-adjusting coffee grinding device with an adjustable inner core, which comprises a grinding cylinder body, a grinding core and a rotating shaft, wherein the grinding core is arranged in the grinding cylinder body, a conical grinding gap is formed between the grinding core and the inner wall of the grinding cylinder body, and the rotating shaft is vertically arranged in the grinding cylinder body. The height position of the grinding core can be adjusted from the outer side, related components are not required to be disassembled, the operation is more convenient, the aim of quickly adjusting the grinding thickness can be achieved, and the convenience of use can be greatly improved; and the adjustment operation can be prevented from polluting the inside, the adjustment is very sanitary, and the health of a user can be prevented from being influenced.

Description

External-adjusting type coffee grinding device with adjustable inner core

Technical Field

The utility model relates to the field of coffee bean treatment apparatuses, in particular to a coffee grinding device.

Background

Currently, in order to facilitate coffee grinding outdoors, some portable coffee grinders are presented. Among them, the existing portable coffee grinder is mostly made in a cylindrical structure with a small diameter. For example: the grinder disclosed in the patent document with the Chinese authority publication number of CN 215016408U.

On the grinder, the knob is rotated in the forward direction or the reverse direction, the knob is used for controlling the height position of the adjusting cover, and then the relative position between the conical grinding core and the fixed grinding ring is adjusted, so that the grinding requirements of different thicknesses are met.

Because the grinding component is positioned in the grinding cavity, the knob forming the grinding component is also positioned in the grinding cavity, and the powder cup is arranged on the lower end opening of the grinding cavity. When the grinding thickness needs to be adjusted, the current operation flow is generally as follows: firstly, the powder cup is disassembled; then, the finger stretches into the lower end opening of the grinding cavity, and the finger acts on the knob; the grinding thickness can then be adjusted by rotating the knob.

Because the space of the lower end opening of the grinding cavity is limited, not only is the finger inconvenient to act on the knob, but also the finger inconvenient to rotate the knob, so that the grinding thickness is very inconvenient to adjust, and the convenience of people in use can be influenced.

Meanwhile, in the grinding thickness adjusting process, fingers can contact the knob, and the powder outlet gap between the cavity and the conical grinding core is easy to contact, so that the powder outlet gap is easy to be polluted, the adjustment is quite unhygienic, and the health of a user is easy to influence.

Therefore, it is necessary to design an external-adjusting coffee grinder with an adjustable inner core to solve the above technical problems.

Disclosure of Invention

The utility model aims to solve the problems and the defects, and provides the external adjusting type coffee grinding device with the adjustable inner core, which can adjust the height position of the grinding core from the outer side, does not need to disassemble related components, is more convenient to operate, can achieve the aim of quickly adjusting the grinding thickness, and can greatly improve the convenience of use; and the adjustment operation can be prevented from polluting the inside, the adjustment is very sanitary, and the health of a user can be prevented from being influenced.

The technical scheme of the utility model is realized as follows:

the utility model provides an inner core adjustable external adjustment type coffee grinder, includes grinding cylinder, grinding core, rotation axis, the grinding core is arranged in the grinding cylinder, is formed with conical grinding clearance between the inner wall of grinding core and grinding cylinder, the vertical setting of rotation axis is in the grinding cylinder, its characteristics lie in the grinding core can vertically slide and can rotationally suit on the rotation axis along with the rotation axis, be provided with the position limiting module that can promote the grinding core and upwards move on the outer wall of grinding cylinder.

Preferably, a limit groove is formed in the circumferential surface of the rotating shaft, and a limit convex part is arranged on the inner wall of the grinding core and can be vertically and slidably embedded in the limit groove.

Preferably, the lower end of the limiting groove penetrates through the lower end face of the rotating shaft, a detachable limiting baffle is arranged on the lower end face of the rotating shaft, and the limiting baffle is located under the limiting convex part.

Preferably, the grinding core comprises a conical core body and a stirring ring, the limiting protruding part is arranged on the inner wall of the stirring ring, the conical core body and the stirring ring can be vertically and slidably sleeved on the rotating shaft, the stirring ring can rotate along with the rotating shaft, and the stirring ring can stir the conical core body to rotate.

Preferably, the position defining module is threaded onto the grinding drum.

Preferably, an adjusting position indicating module is arranged between the position limiting module and the grinding cylinder body.

Preferably, an annular groove surrounding the lower port of the grinding cylinder body is formed in the bottom surface of the grinding cylinder body, the position limiting module comprises an outer ring, an inner ring and a limiting piece, the inner ring and the limiting piece are arranged in the outer ring, the outer ring is rotatably sleeved on the lower end of the grinding cylinder body, the inner ring is embedded in the annular groove and then is in threaded connection with the groove wall of the annular groove, and the limiting piece is further propped against the bottom surface of the grinding core.

Preferably, the grinding cylinder body comprises an outer cylinder, an inner cylinder and a grinding ring, wherein the inner cylinder is a funnel-shaped cylinder body with a large upper part and a small lower part, the outer cylinder is sleeved on the inner cylinder, an annular groove is formed between the inner wall of the lower end of the outer cylinder and the outer wall of the lower end of the inner cylinder, and the grinding ring is arranged on the lower port of the inner cylinder.

Preferably, a convex ring part is arranged on the inner circumferential surface of the outer ring, and the inner ring and the limiting piece are connected on the convex ring part.

Preferably, the position limiting module is arranged on the lower port of the grinding cylinder body, and a powder outlet for the butt joint of the powder cups is formed in the position limiting module.

The utility model has the beneficial effects that: in the external-adjusting coffee grinding device, the grinding core can vertically slide and can be sleeved on the rotating shaft in a rotating way along with the rotating shaft, and a position limiting module capable of pushing the grinding core to move upwards is arranged on the outer wall of the grinding cylinder body. Therefore, the height position of the grinding core can be adjusted from the outer side through the position limiting module, the size of the conical grinding gap can be changed under the condition that related components are not dismounted, the operation is more convenient, the purpose of quickly adjusting the grinding thickness can be achieved, and the convenience of use can be greatly improved. And it can avoid the adjustment operation of grinding thickness to pollute the internal components, this can guarantee to adjust very hygienically to can avoid the health of user to receive the influence, this external modulation type coffee grinder's suitability is very good.

The height position of the grinding core can be stably limited by the position limiting module so as to avoid falling of the grinding core, so that the stability of the conical grinding gap can be ensured, and the reliability of the externally-adjusted coffee grinding device can be ensured.

Drawings

Fig. 1 is a schematic perspective view of an externally adjustable coffee grinder according to the present utility model.

FIG. 2 is a schematic view of the structure of section A-A of FIG. 1 according to the present utility model.

FIG. 3 is a schematic view of the structure of section B-B of FIG. 1 according to the present utility model.

FIG. 4 is a schematic view showing a structure of the present utility model in a state of narrowing a conical polishing gap.

Fig. 5 is a schematic diagram showing a split structure of an external-adjusting coffee grinder according to the present utility model.

Fig. 6 is a schematic view of a part of the structure of the external-adjusting coffee grinder according to the present utility model.

Fig. 7 is a schematic perspective view of a polishing cylinder according to the present utility model.

FIG. 8 is a second schematic view of a part of the external-adjusting coffee grinder according to the present utility model.

FIG. 9 is a schematic view showing a structure of the outer cylinder and the inner cylinder in a detached state in the present utility model.

Fig. 10 is a schematic perspective view of an electric external-adjusting coffee grinder according to the present utility model.

Fig. 11 is a schematic perspective view of a manual external adjusting coffee grinder according to the present utility model.

Description of the embodiments

As shown in fig. 1 to 3, the inner core-adjustable external-adjusting coffee grinding device comprises a grinding cylinder body 1, a grinding core 2 and a rotating shaft 3, wherein the grinding core 2 is arranged in the grinding cylinder body 1, a conical grinding gap 10 is formed between the grinding core 2 and the inner wall of the grinding cylinder body 1, the rotating shaft 3 is vertically arranged in the grinding cylinder body 1, the grinding core 2 can vertically slide and can be sleeved on the rotating shaft 3 in a rotating manner along with the rotating shaft 3, and a position limiting module 4 capable of pushing the grinding core 2 to move upwards is arranged on the outer wall of the grinding cylinder body 1.

In the external-adjusting coffee grinding device, the grinding core 2 can vertically slide and can be rotatably sleeved on the rotating shaft 3 along with the rotating shaft 3, and a position limiting module 4 capable of pushing the grinding core 2 to move upwards is arranged on the outer wall of the grinding cylinder body 1. The height position of the grinding core 2 can be adjusted from the outside through the position limiting module 4, the size of the conical grinding gap 10 can be changed under the condition that related components are not disassembled, the operation is more convenient, the purpose of quickly adjusting the grinding thickness can be achieved, and therefore the convenience of use can be greatly improved. And it can avoid the adjustment operation of grinding thickness to pollute the internal components, this can guarantee to adjust very hygienically to can avoid the health of user to receive the influence, this external modulation type coffee grinder's suitability is very good.

The height position of the grinding core 2 can be stably limited by the position limiting module 4 so as to prevent the grinding core 2 from falling down, thus ensuring the very stability of the conical grinding gap 10, and ensuring the very reliability of the externally-adjusted coffee grinding device.

The position limiting module 4 can play a role in pushing the grinding core 2 to move upwards and limiting the falling of the grinding core 2, and the position limiting module 4 does not limit the rotation of the grinding core 2, so that the grinding requirement can be met very well.

As shown in fig. 2 to 4, in the actual manufacturing process, the specific assembly of the external coffee grinder may have the following structure: the position limiting module 4 is arranged on the outer wall of the grinding cylinder body 1 in a lifting manner, and the inner end of the position limiting module 4 penetrates through the grinding cylinder body 1, and the inner end of the position limiting module 4 can push the grinding core 2 to move upwards when moving upwards along with the position limiting module 4. In this way, the position limiting module 4 can be ensured to conveniently and stably push the grinding core 2 to move upwards, so that the requirement of actual use can be well met.

When the position defining module 4 moves downwards, the core 2 will move downwards under its own weight. While grinding the coffee beans, after the coffee particles enter the conical grinding gap 10, a downward force is generated on the grinding core 2. However, since the grinding core 2 is limited by the position limiting module 4, the grinding core 2 can be prevented from moving downwards continuously, so that the conical grinding gap 10 can be in a very stable state, the grinding thickness can be ensured to be very stable, and the requirement of practical use can be met very well.

As shown in fig. 4, the circumferential surface of the rotating shaft 3 is provided with a limit groove 31, and the inner wall of the grinding core 2 is provided with a limit protrusion 21, so that the limit protrusion 21 can be vertically slidably embedded in the limit groove 31. Through the cooperation of spacing groove 31 and spacing convex part 21, can restrict the vertical range of movement of grinding core 2 on rotation axis 3 to avoid grinding core 2 direct contact to the inner wall of grinding cylinder 1, this can play the effect of safety protection, in order to avoid outer formula coffee grinder to appear damaging, this reliability and the suitability that helps further improve this outer formula coffee grinder.

As shown in fig. 4, 6 and 8, the lower end of the limit groove 31 penetrates through the lower end surface of the rotating shaft 3, and a detachable limit stop 32 is disposed on the lower end surface of the rotating shaft 3, and the limit stop 32 is located right below the limit protrusion 21. Thus, the forming of the limit groove 31 can be facilitated, the limit convex part 21 can be conveniently embedded in the limit groove 31, and the limit convex part 21 can be conveniently separated from the limit groove 31, so that the grinding core 2 can be conveniently maintained, and the applicability of the external adjusting type coffee grinding device can be improved.

As shown in fig. 4, 6 and 8, the limit stop 32 has a disc-shaped structure, a limit screw 33 is inserted in the middle of the limit stop 32, and a threaded end of the limit screw 33 passes through the limit stop 32 and is then screwed onto the lower end face of the rotating shaft 3, so that the limit stop 32 is clamped between a nut end of the limit screw 33 and the lower end face of the rotating shaft 3. Therefore, the installation and positioning of the limiting baffle plate 32 can be ensured to be very stable and reliable, and the limiting baffle plate 32 can be conveniently assembled and disassembled, so that the grinding core 2 can be conveniently maintained.

As shown in fig. 4, 6 and 8, the grinding core 2 includes a conical core 22 and a stirring ring 23, the limiting protruding portion 21 is disposed on an inner wall of the stirring ring 23, the conical core 22 and the stirring ring 23 are vertically slidably sleeved on the rotating shaft 3, the stirring ring 23 can rotate along with the rotating shaft 3, and the stirring ring 23 can stir the conical core 22 to rotate. Therefore, the structure of synchronous rotation with the rotating shaft 3 is not needed to be processed on the conical core 22 with a complex structure, so that the matched structure of the grinding core 2 and the rotating shaft 3 is easier to process, and the convenience of manufacturing is improved.

As shown in fig. 4 and fig. 6, the top surface of the stirring ring 23 is provided with a stirring convex column 231, and the vertical center line of the stirring convex column 231 and the rotation center line of the stirring ring 23 are arranged in a staggered manner, and the stirring convex column 231 is embedded on the bottom surface of the conical core 22. This enables the toggle ring 23 to stably drive the tapered core 22 to rotate, thereby ensuring a very reliable grinding.

As shown in fig. 6 and 8, the rotation shaft 3 includes a cylindrical portion 34 and a non-cylindrical portion 35, the diameter of the non-cylindrical portion 35 is smaller than that of the cylindrical portion 34, the non-cylindrical portion 35 is disposed on the lower end surface of the cylindrical portion 34, a limiting groove 31 is formed between the outer surface of the non-cylindrical portion 35 and the lower end surface of the cylindrical portion 34, and a sleeved hole 231 matched with the non-cylindrical portion 35 is formed by surrounding the inner wall of the toggle ring 23 and the side wall of the limiting protrusion 21 together. The conical core 22 is sleeved on the cylindrical portion 34, and the sleeved hole 231 is sleeved on the non-cylindrical portion 35. Therefore, the rotating shaft 3 can carry the grinding core 2 to perform stable rotating motion, so that the conical core 22 can be driven to perform stable rotating motion, the grinding stability can be further ensured, the vertical movement of the grinding core 2 can be ensured to be smoother, and the processing of the grinding core 2 and the rotating shaft 3 can be facilitated.

As shown in fig. 2 to 4, the position limiting module 4 is screwed to the grinding cylinder 1, and when the position limiting module 4 is screwed, the position limiting module 4 can be moved up and down on the grinding cylinder 1. Adopt the spiro union mode to connect, not only can reach the demand of stable mounted position limit module 4, can also conveniently carry out position adjustment to help improving the stability and the accuracy of grinding core 2 position adjustment, and then help improving this outer accent type coffee grinder's reliability and suitability.

As shown in fig. 1, an adjustment position indication module 5 is provided between the position defining module 4 and the grinding cylinder 1. By adjusting the setting of the position indication module 5, the user can conveniently memorize the thickness of the powder discharged from each position of the position limiting module 4, thereby further improving the use convenience of the externally-adjusted coffee grinding device.

As shown in fig. 1, the adjustment position indicating module 5 includes an indicating portion 51 and an indicating portion 52, wherein the indicating portion 51 and the indicating portion 52 are respectively provided on the grinding cylinder 1 and the position limiting module 4, or the indicating portion 52 and the indicating portion 51 are respectively provided on the grinding cylinder 1 and the position limiting module 4. The structure of the position adjusting indicating module 5 is quite simple and reliable, so that the position adjusting indicating module can be manufactured conveniently, and can achieve quite good indicating effect, thereby ensuring quite convenient use of users.

As shown in fig. 1, the identification part 52 includes a plurality of digital identification parts 52, the numbers of the digital identification parts 52 are different, each digital identification part 52 is disposed on the outer circumferential surface of the position defining module 4, each digital identification part 52 is arranged in an annular array around the vertical center line of the position defining module 4, the indication part 51 is triangular, and one sharp corner of the indication part 51 is directed to the identification part 52. Therefore, a very good indication effect can be achieved, so that the memory and the use of a user can be more convenient, and the very convenient use can be further ensured.

As shown in fig. 2 to 5, the bottom surface of the grinding cylinder 1 is provided with an annular groove 11 surrounding the lower port, the position limiting module 4 comprises an outer ring 41, an inner ring 42 and a limiting piece 43, the inner ring 42 and the limiting piece 43 are both arranged in the outer ring 41, the outer ring 41 is rotatably sleeved on the lower end of the grinding cylinder 1, the inner ring 42 is embedded in the annular groove 11 and then is in threaded connection with the groove wall of the annular groove 11, and the limiting piece 43 is propped against the bottom surface of the grinding core 2. By adopting the position limiting module 4, the adjustment is convenient, the installation and the positioning of the position limiting module 4 can be ensured to be very reliable, and the pushing action of the position limiting module 4 on the grinding core 2 can be very stable and reliable, so that the reliability of the external adjusting type coffee grinding device can be further improved. Through making ring channel 11 to adopt inner ring 42 to link with the cell wall looks spiro union of ring channel 11, can hide the connection structure between position limiting module 4 and the grinding cylinder 1 like this, in order to avoid here connection structure to occupy the outside space of grinding cylinder 1, thereby can avoid the position limiting module 4 too protruding on the surface of grinding cylinder 1, this can not only reduce and scratch, guarantee pleasing to the eye, can also make the appearance of this outer formula coffee grinder more harmonious, and then more can facilitate the use.

The marking portion 52 is provided on the outer circumferential surface of the outer ring 41 so as to satisfy the manufacturing and use requirements.

As shown in fig. 3 and 5, the outer ring 41 is sleeved with a decorative shell 44, and an anti-slip portion 441 is disposed on an outer wall of the decorative shell 44. When the decorative shell 44 is employed, the identification portion 52 is provided on the outer surface of the decorative shell 44. Thus, the aesthetic property and the grade can be improved, and the market competitiveness of the externally-adjusted coffee grinding device can be improved.

As shown in fig. 3, 6, 8 and 9, the grinding cylinder 1 comprises an outer cylinder 12, an inner cylinder 13 and a grinding ring 14, wherein the inner cylinder 13 is a funnel-shaped cylinder with a large upper part and a small lower part, the outer cylinder 12 is sleeved on the inner cylinder 13, an annular groove 11 is formed between the inner wall of the lower end of the outer cylinder 12 and the outer wall of the lower end of the inner cylinder 13, and the grinding ring 14 is arranged on the lower port of the inner cylinder 13; the rotating shaft 3 is vertically arranged in the inner cylinder 13 in a rotatable manner, the grinding core 2 is arranged on the inner side of the grinding ring 14, a conical grinding gap 10 is formed between the outer circumferential surface of the grinding core 2 and the inner circumferential surface of the grinding ring 14, the outer ring 41 is sleeved on the lower end of the outer cylinder 12 in a rotatable and vertically movable manner, the axial center line of the inner ring 42 is coaxial with the axial center line of the outer ring 41, and the inner ring 42 is in threaded connection with the inner wall of the outer cylinder 12 or the outer wall of the inner cylinder 13. By adopting the grinding cylinder body 1, the annular groove 11 can be formed conveniently, and the grinding cylinder body 1 can be ensured to have a more stable and reliable structure, so that the reliability and the applicability of the externally-adjusted coffee grinding device can be further improved.

As shown in fig. 3, 6 and 8, the grinding ring 14 is vertically arranged, the lower hole Duan Cheng of the grinding ring 14 is forward tapered, the upper hole section of the grinding ring 14 is reverse tapered, the tapered core 22 is forward tapered, the upper end of the tapered core 22 penetrates into the grinding ring 14 from the lower port of the grinding ring 14, and a conical grinding gap 10 is formed between the outer circumferential surface of the tapered core 22 and the lower hole wall of the grinding ring 14. This facilitates the entry of the coffee beans into the conical grinding gap 10, whereby the grinding stability is ensured.

As shown in fig. 3, the inner wall of the inner cylinder 13 is provided with a positioning arm 36, and the rotating shaft 3 is rotatably provided on the positioning arm 36, so that the rotating shaft 3 can be stably mounted in the inner cylinder 13.

As shown in fig. 3, 5 and 9, an inner circumferential surface of the lower end of the outer cylinder 12 is provided with an inner screw 121, and an outer circumferential surface of the upper end of the inner ring 42 is provided with an outer screw 421, and the outer screw 421 is screw-coupled with the inner screw 121. This not only facilitates the stable screwing of the inner ring 42, but also ensures a very stable adjustment operation.

As shown in fig. 3 and fig. 6 to fig. 9, a positioning slot 131 is formed on the edge of the lower port of the inner cylinder 13, the upper end of the grinding ring 14 is embedded in the positioning slot 131, a detachable clamping ring 132 is arranged on the lower end surface of the inner cylinder 13, and the clamping ring 132 clamps the grinding ring 14. This facilitates removal and maintenance of the grind ring 14, thereby helping to further enhance the applicability of the externally adjusted coffee grinder assembly.

As shown in fig. 3, 6 and 8, the outer edge of the lower end of the grinding ring 14 is provided with a limiting ring groove 141, the inner circumferential surface of the clamping ring 132 is provided with a clamping convex ring 133, the clamping ring 132 is sleeved on the grinding ring 14, and the clamping convex ring 133 is embedded in the limiting ring groove 141. Therefore, the grinding ring 14 can be limited very stably and reliably, and the mounting and positioning of the grinding ring 14 can be ensured to be very stable and reliable.

As shown in fig. 8, the positioning slot 131 is a non-circular slot, and the grinding ring 14 is matched with the positioning slot 131. In this way, the grinding ring 14 can be stably limited by the positioning clamping groove 131, so that the grinding ring 14 is prevented from rotating, and the reliability and the applicability of the external-adjusting coffee grinding device can be further improved.

As shown in fig. 3, 6 and 8, at least two positioning screws 134 are inserted into the clamping ring 132, and each positioning screw 134 is annularly arranged around the axial center line of the clamping ring 132, and the threaded end of each positioning screw 134 is screwed onto the lower end face of the inner cylinder 13 after passing through the clamping ring 132. This not only can guarantee that the installation location of clamp ring 132 is very reliable and stable, can also satisfy the demand of dismantling clamp ring 132 to can satisfy the demand of dismantling grinding ring 14, and then can be convenient for realize the dismantlement maintenance to grinding ring 14.

As shown in fig. 3 and 5, a convex ring portion 411 is provided on the inner circumferential surface of the outer ring 41, and the inner ring 42 and the stopper piece 43 are both connected to the convex ring portion 411. The convex ring part 411 is arranged to facilitate the installation and positioning of the inner ring 42 and the limiting piece 43, so that the convenience of the assembly of the position limiting module 4 can be improved, and the position limiting module 4 can be ensured to have very high reliability.

As shown in fig. 3 and 5, the limiting pieces 43 and the inner ring 42 are sequentially stacked on the upper surface of the convex ring portion 411, or the limiting pieces 43 and the inner ring 42 are respectively arranged on the upper and lower surfaces of the convex ring portion 411; the limiting piece 43, the inner ring 42 and the outer ring are all fixed on the convex ring part 411 through the locking screw 45. This allows the stopper pieces 43 and the inner ring 42 to be stably fixed to the collar portion 411, thereby ensuring a high reliability of the position limiting module 4.

As shown in fig. 3 and 5, at least two locking screws 45 are provided, each locking screw 45 is annularly arranged around the vertical center line of the convex ring portion 411, and the threaded end of each locking screw 45 sequentially passes through the convex ring portion 411 and the limiting piece 43 and then is screwed on the inner ring 42, or the threaded end of each locking screw 45 sequentially passes through the limiting piece 43 and the convex ring portion 411 and then is screwed on the inner ring 42. Thus, the use amount of the locking screw 45 can be conveniently controlled, and the mounting and positioning of the limiting piece 43 and the inner ring 42 can be ensured to be very stable and reliable, so that the reliability and the applicability of the external adjusting type coffee grinding device can be further improved.

As shown in fig. 5, the limiting plate 43 is disc-shaped, and at least one powder falling hole 431 vertically penetrating through the limiting plate 43 is formed. The limiting piece 43 has a more reliable and applicable structure, so that the limiting piece 43 can be stably fixed by the locking screw 45, and the limiting piece 43 can reliably push and limit the grinding core 2; and the limiting piece 43 can also facilitate the passage of coffee powder. This helps to further improve the reliability and applicability of the external coffee grinder.

As shown in fig. 4, the stirring ring 23 is pressed against the limiting piece 43, and both the stirring ring 23 and the limiting piece 43 are of wear-resistant stainless steel structures. This contributes to a further increase in the accuracy and reliability of the position definition of the grinding core 2 by the position definition module 4 and thus to a further increase in the reliability and service life of the external coffee grinding apparatus.

To further increase the structural strength, both the outer ring 41 and the inner ring 42 may be made of stainless steel. This can facilitate ensuring that the mounting and positioning of the limiting plate 43 is very stable and reliable, thereby further improving the reliability and applicability of the externally adjusted coffee grinder.

As shown in fig. 1 to 4, the position limiting module 4 is disposed on the lower port of the grinding cylinder 1, and the position limiting module 4 is provided with a powder outlet 46 for docking the powder cup 6. By arranging the position defining module 4 on the lower port of the grinding cylinder 1, this can facilitate the position defining module 4 to act directly on the grinding core 2 from the lower port of the grinding cylinder 1, without having to provide other relief structures on the grinding cylinder 1 to meet the effect of the position defining module 4 on the grinding core 2, which contributes to improving the convenience of manufacture of the external coffee grinding apparatus.

As shown in fig. 2 to 4, the lower port of the outer ring 41 constitutes a powder outlet 46, and the powder cup 6 is screwed onto the lower end of the outer ring 41. Therefore, the powder cup 6 can be assembled and disassembled conveniently, the mounting and positioning of the powder cup 6 can be guaranteed to be quite stable and reliable, and the reliability and the applicability of the externally-adjusted coffee grinding device can be further improved.

As shown in fig. 2 to 4, the inner wall of the lower end of the outer ring 41 is provided with an inner screw portion, and the outer circumferential surface of the upper end of the powder cup 6 is provided with an outer screw portion, and the outer screw portion is screwed onto the inner screw portion, so that the requirement of screwing can be satisfied well.

As shown in fig. 10 and 11, the grinding cylinder 1 is provided with a rotation driving mechanism 7, and the rotation shaft 3 is in driving connection with the rotation driving mechanism 7. Thus, the rotation of the rotating shaft 3 can be conveniently realized, and the use is very convenient.

As shown in fig. 10 and 11, the rotation driving mechanism 7 includes a driving motor or a driving hand wheel. In this way, the rotary driving mechanism 7 can be ensured to stably drive the rotary shaft 3 to rotate, so that the actual use requirement can be well met.

The above embodiments are preferred embodiments of the present utility model, and all similar structures and equivalent modifications are intended to fall within the scope of the present utility model.

Claims (10)

1. The utility model provides an inner core adjustable external adjustment type coffee grinder, includes grinding cylinder (1), grinding core (2), rotation axis (3), grinding core (2) are arranged in grinding cylinder (1), are formed with conical grinding clearance (10) between the inner wall of grinding core (2) and grinding cylinder (1), rotation axis (3) vertical setting is in grinding cylinder (1), its characterized in that: the grinding core (2) can vertically slide and can be sleeved on the rotating shaft (3) in a rotating way along with the rotating shaft (3), and a position limiting module (4) capable of pushing the grinding core (2) to move upwards is arranged on the outer wall of the grinding cylinder body (1).

2. The adjustable core external coffee grinder of claim 1, wherein: the circumference surface of the rotating shaft (3) is provided with a limit groove (31), the inner wall of the grinding core (2) is provided with a limit convex part (21), and the limit convex part (21) can be vertically and slidably embedded in the limit groove (31).

3. The adjustable core external coffee grinder assembly of claim 2, wherein: the lower end of the limiting groove (31) penetrates through the lower end face of the rotating shaft (3), a detachable limiting baffle (32) is arranged on the lower end face of the rotating shaft (3), and the limiting baffle (32) is located under the limiting convex part (21).

4. The adjustable core external coffee grinder assembly of claim 2, wherein: the grinding core (2) comprises a conical core body (22) and a stirring ring (23), wherein the limiting protruding portion (21) is arranged on the inner wall of the stirring ring (23), the conical core body (22) and the stirring ring (23) can be vertically and slidably sleeved on the rotating shaft (3), the stirring ring (23) can rotate along with the rotating shaft (3), and the stirring ring (23) can stir the conical core body (22) to rotate.

5. The adjustable core external coffee grinder of claim 1, wherein: the position limiting module (4) is screwed on the grinding cylinder body (1).

6. The adjustable core external coffee grinder assembly of claim 1 or 5, wherein: an adjusting position indicating module (5) is arranged between the position limiting module (4) and the grinding cylinder body (1).

7. The adjustable core external coffee grinder assembly of claim 1 or 5, wherein: the grinding cylinder is characterized in that an annular groove (11) surrounding the lower port of the grinding cylinder is formed in the bottom surface of the grinding cylinder body (1), the position limiting module (4) comprises an outer ring (41), an inner ring (42) and a limiting piece (43), the inner ring (42) and the limiting piece (43) are arranged in the outer ring (41), the outer ring (41) can be rotatably sleeved on the lower end of the grinding cylinder body (1), the inner ring (42) is embedded in the annular groove (11) and then is in threaded connection with the groove wall of the annular groove (11), and the limiting piece (43) is further propped against the bottom surface of the grinding core (2).

8. The adjustable core external coffee grinder assembly of claim 7, wherein: the grinding cylinder body (1) comprises an outer cylinder (12), an inner cylinder (13) and a grinding ring (14), wherein the inner cylinder (13) is a funnel-shaped cylinder body with a large upper part and a small lower part, the outer cylinder (12) is sleeved on the inner cylinder (13), an annular groove (11) is formed between the inner wall of the lower end of the outer cylinder (12) and the outer wall of the lower end of the inner cylinder (13), and the grinding ring (14) is arranged on the lower port of the inner cylinder (13).

9. The adjustable core external coffee grinder assembly of claim 7, wherein: a convex ring part (411) is arranged on the inner circumferential surface of the outer ring (41), and the inner ring (42) and the limiting piece (43) are connected to the convex ring part (411).

10. The adjustable core external coffee grinder of claim 1, wherein: the position limiting module (4) is arranged on the lower port of the grinding cylinder body (1), and a powder outlet (46) for the butt joint of the powder cups (6) is formed in the position limiting module (4).