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EP-4342347-B1 - ADJUSTING MECHANISM AND GRINDER USING SAME

EP4342347B1EP 4342347 B1EP4342347 B1EP 4342347B1EP-4342347-B1

Inventors

  • ZHANG, CHAO

Dates

Publication Date
20260513
Application Date
20230804

Claims (11)

  1. An adjusting mechanism, comprising a grinding base adjusting ring (21), a fixed ring (22), a rotating ring (23) and a guide ring (24), wherein the rotating ring (23) is movably connected with the fixed ring (22) through threads, the guide ring (24) is movably connected with the rotating ring (23) through threads, the fixed ring (22) is provided with a guide piece (25) used for moving the guide ring (24) axially, the grinding base adjusting ring (21) is connected with the rotating ring (23), the grinding base adjusting ring (21) is configured to drive the rotating ring (23) to rotate when rotating so as to drive the guide ring (24) move axially, wherein the fixed ring (22) is provided with a first internal thread (22a), the rotating ring (23) is provided with a first external thread (23a), and the rotating ring (23) is movably connected with the first internal thread (22a) through the first external thread (23a); and the rotating ring (23) is provided with a second internal thread (23b), the guide ring (24) is provided with a second external thread (24b), and the guide ring (24) is movably connected with the second internal thread (23b) through the second external thread (24b), wherein the guide ring (24) is provided with a guide groove (242), and the guide piece (25) is located in the guide groove (242) so that the guide ring (24) is limited by the guide groove (242) and the guide piece (25) to move axially.
  2. The adjusting mechanism according to claim 1, wherein the guide ring (24) is provided with an upper limiting part (241) and a lower limiting ring (26) for installing the grinding base (102).
  3. The adjusting mechanism according to claim 2, wherein the upper limiting part (241) is located at the top of the guide ring (24), the lower end of the guide ring (24) is provided with a third external thread (24c), the lower limiting ring (26) is provided with a third internal thread (26c), and the lower limiting ring (26) is connected with the third external thread (24c) through the third internal thread (26c).
  4. The adjusting mechanism according to claim 1, wherein the rotating ring (23) is provided with a connecting column (231), the side wall of the fixed ring (22) is provided with a limiting hole (221), the connecting column (231) is penetrated through the limiting hole (221), the grinding base adjusting ring (21) is sleeved on the outer side of the fixed ring (22), the inner side of the grinding base adjusting ring (21) is provided with a limiting groove (211), and the connecting column (231) is located in the limiting groove (211) so that the grinding base adjusting ring (21) is configured to drive the rotating ring (23) to rotate when rotating.
  5. The adjusting mechanism according to claim 1, wherein the outer side wall of the fixed ring (22) is provided with first clamping beads (222), the inner side wall of the grinding base adjusting ring (21) is provided with a plurality of first clamping grooves (212), and when the grinding base adjusting ring (21) is rotated, the first clamping beads (222) are in contact with the first clamping grooves (212).
  6. The adjusting mechanism according to claim 1, wherein the outer side of the grinding base adjusting ring (21) is provided with anti-skid stripes (213) for increasing friction.
  7. A grinder, comprising a material bin (1) and a grinding base (102) arranged in the material bin (1), wherein the grinding base (102) is provided with the adjusting mechanism of any one of claims 1-6.
  8. The grinder according to claim 7, wherein the bottom of the material bin (1) is provided with a fourth internal thread (1d), the top of the fixed ring (22) is provided with a fourth external thread (22d), and the material bin (1) is connected with the fourth external thread (22d) of the fixed ring (22) through the fourth internal thread (1d).
  9. The grinder according to claim 7, wherein the grinder also comprises a powder bin (4), the top of the powder bin (4) is provided with a fifth external thread (4e), the bottom of the fixed ring (22) is provided with a fifth internal thread (22e), and the powder bin (4) is connected with the fifth internal thread (22e) of the fixed ring (22) through the fifth external thread (4e).
  10. A grinder, comprising a material bin (1) and a grinding base (102) and a grinding wheel (101) which are arranged in the material bin (1), and further comprising a grinding wheel (101) adjusting mechanism used for adjusting the position of the grinding wheel (101) and the grinding base (102) adjusting mechanism of any one of claims 1-6 used for adjusting the position of the grinding base (102).
  11. The grinder according to claim 10, wherein the grinding wheel (101) adjusting mechanism comprises a grinding wheel adjusting ring (31) and a central shaft (32), a central column (11) is arranged in the material bin (1), the central column (11) is provided with a central hole (111), the central shaft (32) is arranged in the central hole (111), the lower end of the central shaft (32) is connected with the grinding wheel (101), the grinding wheel adjusting ring (31) is movably connected with the top of the central column (11) through threads, the central shaft (32) is connected with the grinding wheel adjusting ring (31), the central shaft (32) can be rotated circumferentially relative to the grinding wheel (101) adjusting ring and the central hole (111), and the grinding wheel adjusting ring (31) is configured to drive the central column (11) to move axially when rotating so as to drive the grinding wheel (101) to move axially.

Description

Technical Field The present disclosure relates to the technical field of grinding, and more particularly relates to an adjusting mechanism and a grinder using the same. Background With the development of the society and the improvement of people's living standards, more and more people pursue a high-quality life, and coffee has gradually become a common drink in people's daily life, among which hand ground coffee is favored by people because of the mellow and fragrant taste. To make hand ground coffee, it is necessary to use a grinder to grind coffee beans into powder first, and the grinding fineness of the coffee beans will affect the taste of brewed coffee. At present, for the grinders on the market, it is usually possible to adjust the grinding fineness of the coffee beans by adjusting the gap between the grinding base and the grinding wheel, and the grinding base and the grinding wheel can be adjusted respectively, but in the prior art, the grinding base is usually adjusted in a stepped mode, i.e., the form of adjustment is stepped, so fine adjustment cannot be made so that the grinding fineness of bean powder is limited, and it is impossible for the user to obtain bean powder with various finenesses. For example, a patent with a publication number of CN113208462B provides a bean grinding device, comprising a bearing seat in which a grinding base is arranged, a grinding base adjusting assembly and a grinding wheel adjusting assembly, wherein the grinding base adjusting assembly comprises an adjusting ring, at least one push component and at least one first elastic component, the adjusting ring has at least one continuous stepped structure abutted by the push component, the grinding base adjusting assembly determines the position of the grinding base relative to the grinding wheel based on the position of the push component against the continuous stepped structure, the grinding wheel adjusting assembly comprises a drive rod which drives the grinding wheel to rotate radially and a support component which is arranged on the drive rod and supports the grinding wheel, a first thread is formed on the drive rod, a second thread matched with the first thread is formed on the support component, and the grinding wheel adjusting assembly determines the position of the grinding wheel relative to the grinding base based on the position of the support component on the drive rod. In the present disclosure, the grinding base adjusting assembly is used for coarse adjustment of the position between the grinding base and the grinding wheel, the grinding wheel adjusting assembly is used for minor adjustment of the position between the grinding base and the grinding wheel, and the continuous stepped structure in the grinding base adjusting assembly makes the adjustment of the grinding base stepped, i.e., the adjustment of the spacing of the grinding base is limited by the order of the continuous stepped structure, so the grinding base adjusting assembly cannot realize finer adjustment. US 2019/0313853A1 describes a grinder with an elevation ring to provide a function to adjust the particle size of powder produced by the grinder. The elevation ring can be moved by engaging a rotation ring that is provided with an adjustment ring that moves the elevation ring axially. Summary In view of the problem that the adjustment of the grinder is not fine enough in the prior art, the present disclosure provides an adjusting mechanism and a grinder using the same, which can realize the minor adjustment of the grinding base so that the bean powder has more grinding finenesses. A technical solution adopted to solve the above technical problem in the utility model is as follows: An adjusting mechanism, comprising a grinding base adjusting ring, a fixed ring, a rotating ring and a guide ring, wherein the rotating ring is movably connected with the fixed ring through threads, the guide ring is movably connected with the rotating ring through threads, the fixed ring is provided with a guide piece used for moving the guide ring axially, the grinding base adjusting ring is connected with the rotating ring, and the grinding base adjusting ring drives the rotating ring to rotate when rotating so as to drive the guide ring move axially; and the adjusting mechanism makes adjustment by means of threads, with high flexibility, high adjustment accuracy and fine adjustment. Further, the fixed ring is provided with a first internal thread, the rotating ring is provided with a first external thread, and the rotating ring is movably connected with the first internal thread through the first external thread. Also, the rotating ring is provided with a second internal thread, the guide ring is provided with a second external thread, and the guide ring is movably connected with the second internal thread through the second external thread. Finally, the guide ring is provided with a guide groove, and the guide piece is located in the guide groove so that the gu