Bean grinder
By introducing a rotatable adjustment ring and drive shaft into the grinding mechanism of the grinder, the problem of the inability to adjust the size of the coffee bean powder particles in the prior art is solved, and the flexible adjustment of the coarseness and fineness of the coffee powder is achieved, and the coffee brewing is improved. Flexibility and taste experience.
Patent Information
- Application Number
- CN202420511602.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-17
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-03-17
AI Technical Summary
The existing coffee bean grinder cannot adjust the gap between the child knife and the mother knife, resulting in the grinding of bean powder particles that cannot be adjusted, affecting the brewing and taste of the coffee.
A grinder is designed, and its grinding mechanism includes a rotatable adjustment ring and a transmission shaft. By rotating the adjustment ring with respect to the main housing, the transmission shaft is driven to move up and down, so as to adjust the gap between the child knife and the mother knife, which is convenient to operate.
实现了子刀与母刀间隙的灵活调整,方便用户根据需要调节咖啡粉的粗细,提升了咖啡冲泡的灵活性和口味体验。
Smart Images
Figure CN222285307U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coffee bean grinding, in particular to a coffee bean grinder. Background Art
[0002] With the improvement of people's living standards, many people begin to like drinking coffee. Coffee is generally prepared by grinding coffee beans into powder first and then brewing coffee. When grinding coffee beans, a grinder is generally used, such as the patent number: CN202321564798.3, and the name: coffee bean grinder. The coffee bean grinder recorded in the patent document includes a feeding part, a grinding part and a powder discharge part. The grinding part includes a sub-knife connected to an output shaft and a mother knife fixedly mounted on a frame. The sub-knife is driven to rotate by the output shaft to grind the coffee beans located between the sub-knife and the mother knife. However, since the output shaft is limited and cannot move up and down, the sub-knife cannot be adjusted up and down relative to the mother knife, the gap between the sub-knife and the mother knife cannot be adjusted, and the size of the ground bean powder particles cannot be adjusted. The coarseness of the coffee powder will directly affect the brewing method and the corresponding coffee pot used, and will also directly affect the final taste, bringing inconvenience to use. Summary of the invention
[0003] The utility model aims to provide a coffee bean grinder to address the deficiencies of the prior art. The coffee bean grinder can adjust the distance between the sub-knife and the main knife, and is easy to use.
[0004] A bean grinder, comprising: a grinding mechanism for grinding beans, the grinding mechanism comprising a main shell, a mother knife is connected to the inner side surface of the lower end of the main shell, an adjustment ring is movably connected to the upper end of the main shell, and the adjustment ring can rotate relative to the main shell; an adjustment frame is provided on the inner side surface of the adjustment ring and is connected to a transmission shaft, the lower end of the transmission shaft is connected to the child knife, the upper end of the transmission shaft extends out of the adjustment frame and forms a connecting part, a transmission structure is provided between the transmission shaft and the adjustment ring, when the adjustment ring rotates, the transmission shaft moves up and down relative to the main shell, and the transmission shaft can rotate relative to the adjustment ring.
[0005] Furthermore, the adjustment frame includes a connecting ring located in the middle and several support blocks connected to the inner side of the adjusting ring, the two ends of the support blocks are respectively connected to the connecting ring and the adjusting ring, a countersunk hole is provided in the middle of the upper end of the connecting ring, an upper bearing is provided in the countersunk hole, and the transmission shaft is sleeved with the upper bearing.
[0006] Preferably, the upper end of the upper bearing is provided with an external thread and is threadedly connected with an upper blocking ring, and the upper blocking ring is abutted against the connecting ring.
[0007] Furthermore, a side surface of the adjustment ring is provided with an annular scale, and a side surface of the main housing is provided with an indicating unit for indicating the scale.
[0008] Furthermore, an inner cylinder is provided inside the main shell, and a plurality of connecting blocks are provided between the inner cylinder and the main shell, the middle part of the transmission shaft passes through the inner cylinder, a threaded ring is extended downward from the lower end of the connecting ring, an internal thread is provided at the upper end of the inner cylinder and is threadedly connected to the threaded ring; or, an internal thread is provided at the lower end of the adjusting ring, an external thread is provided at the upper end of the main shell, and the adjusting ring is threadedly connected to the main shell.
[0009] Furthermore, a middle bearing and a lower bearing are respectively provided at the upper end and the lower end of the inner cylinder, the middle bearing and the lower bearing are respectively sleeved with the transmission shaft, and the lower end of the transmission shaft is sleeved with a lower shielding ring, which is located below the lower bearing.
[0010] Furthermore, the lower end of the adjustment ring is provided with a plurality of vertical grooves distributed in a ring shape, and ridges are formed between adjacent vertical grooves. The upper end of the main shell is provided with a plurality of mounting holes, and a damping block is provided in the mounting hole for preventing the rotation of the ridge, and one end of the damping block extends out of the mounting hole.
[0011] Furthermore, a power structure is provided above the adjusting ring, and the power structure includes: a rotating cover, a boss matched with the upper end of the adjusting ring is provided at the lower end of the rotating cover, the boss is inserted into the adjusting ring, the cross-section of the connecting part is polygonal, and a socket matched with the upper end of the transmission shaft is provided in the middle part of the rotating cover, or a transmission block is connected to the middle part of the rotating cover, and a socket matched with the upper end of the transmission shaft is provided in the middle part of the transmission block.
[0012] Furthermore, one end of the rotating cover is connected to a rotating rod, and an outer end of the rotating rod is provided with a bending portion and connected to an operating head.
[0013] Furthermore, a protrusion extends outward at one end of the rotating cover, an L-shaped notch is provided at the outer end of the protrusion, an axial hole is provided at the outer end and is connected to an axle rod, the rotating rod is provided with a waist-shaped hole, the middle part of the axle rod passes through the waist-shaped hole, and an inner hole is provided inside the protrusion for horizontal insertion of the rotating rod.
[0014] Furthermore, the lower end of the main housing is detachably connected to a lower housing with an open upper end, and the lower housing is threadedly connected or sleeved to the main housing. The lower housing is used to collect coffee powder.
[0015] Furthermore, friction patterns are provided on the surface of the main shell.
[0016] The beneficial effects of the utility model are as follows: the utility model achieves the purpose of adjusting the gap between the sub-knife and the main knife by rotating the adjusting ring relative to the main shell body and driving the transmission shaft to move up and down, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the utility model.
[0018] Figure 2This is the first exploded schematic diagram of the utility model.
[0019] Figure 3 This is a second exploded schematic diagram of the present utility model.
[0020] Figure 4 This is a third exploded schematic diagram of the present utility model.
[0021] Figure 5 A schematic diagram of the main shell.
[0022] The accompanying drawings are marked as follows:
[0023] 1——lower shell; 2——main shell; 3——indicating unit; 4——scale; 5——adjusting ring; 6——rotating cover; 7——convex block; 8——rotating rod; 9——shaft rod; 10——operating head; 11——waist-shaped hole; 12——connecting ring; 13——support block; 14——upper shielding ring; 15——transmission block; 16——shaft hole; 17——inner hole; 18——L-shaped notch; 19——upper bearing; 20——vertical groove; 21——countersunk hole; 22——transmission shaft; 23——damping block; 24——threaded ring; 25——sub-knife; 26——female knife; 27——mounting hole; 28——connecting block; 29——inner cylinder; 30——connecting part; 31——middle bearing; 32——lower bearing; 33——lower shielding ring; 34——convex round block; 35——boss. DETAILED DESCRIPTION
[0024] The utility model is described in detail below with reference to the accompanying drawings.
[0025] Example: See Figures 1 to 4 A bean grinder, comprising: a grinding mechanism for grinding beans, the grinding mechanism comprising a main shell 2, a mother knife 26 is connected to the inner side surface of the lower end of the main shell 2, an adjusting ring 5 is movably connected to the upper end of the main shell 2, and the adjusting ring 5 can rotate relative to the main shell 2; an adjusting frame is provided on the inner side surface of the adjusting ring 5 and is connected to a transmission shaft 22, a sub-knife 25 is connected to the lower end of the transmission shaft 22, the upper end of the transmission shaft 22 extends out of the adjusting frame and forms a connecting portion 30, a transmission structure is provided between the transmission shaft 22 and the adjusting ring 5, when the adjusting ring 5 rotates, the transmission shaft 22 moves up and down relative to the main shell 2, and the transmission shaft 22 can rotate relative to the adjusting ring 5.
[0026] The present technical solution is mainly aimed at improving the grinding mechanism of the bean grinder. When in use, the connection portion 30 at the upper end of the transmission shaft 22 is connected to an external power transmission mechanism, such as a rotating handle, a rotating motor, etc.; the lower end of the main shell 2 is connected to a container for storing bean powder; when adjusting the sub-knife 25 up and down, the adjusting ring 5 can be rotated. When the adjusting ring 5 rotates, the adjusting ring 5 drives the transmission shaft 22 to move up and down, and then drives the sub-knife 25 to move up and down, so that the gap between the sub-knife 25 and the mother knife 26 can be adjusted.
[0027] Furthermore, the adjustment frame includes a connecting ring 12 located in the middle and a plurality of support blocks 13 connected to the inner side of the adjustment ring 5, the two ends of the support block 13 are respectively connected to the connecting ring 12 and the adjustment ring 5, a countersunk hole 21 is provided in the middle of the upper end of the connecting ring 12, an upper bearing 19 is provided in the countersunk hole 21, and a transmission shaft 22 is sleeved with the upper bearing 19.
[0028] By setting the countersunk hole 21 and the upper bearing 19, the transmission shaft 22 can rotate relative to the adjustment ring 5; in the specific setting, the upper bearing 19 can be interference fit with the countersunk hole 21, so that the transmission shaft 22 can move up and down with the adjustment ring 5 to adjust the position.
[0029] Preferably, an external thread is provided at the upper end of the upper bearing 19 and is threadedly connected to an upper blocking ring 14 , and the upper blocking ring 14 abuts against the connecting ring 12 .
[0030] In order to prevent the upper bearing 19 from being separated from the counterbore 21, an upper blocking ring 14 is provided, which limits the upper bearing 19 in the counterbore 21 and prevents external coffee beans from falling into the upper bearing 19. The upper end of the upper blocking ring 14 may be conical.
[0031] Furthermore, a ring-shaped scale 4 is provided on the side of the adjustment ring 5 , and an indicating unit 3 for indicating the scale 4 is provided on the side of the main housing 2 .
[0032] The indication unit 3 may be an arrow, an indication point, etc., so that the rotation of the adjustment ring 5 can be clearly observed.
[0033] See also Figure 4 , Figure 5 ; Further, an inner cylinder 29 is provided inside the main shell 2, and a plurality of connecting blocks 28 are provided between the inner cylinder 29 and the main shell 2. The middle part of the transmission shaft 22 passes through the inner cylinder 29, and a threaded ring 24 extends downward from the lower end of the connecting ring 12. An internal thread is provided at the upper end of the inner cylinder 29 and is threadedly connected to the threaded ring 24; or, an internal thread is provided at the lower end of the adjusting ring 5, and an external thread is provided at the upper end of the main shell 2, and the adjusting ring 5 is threadedly connected to the main shell 2.
[0034] The main housing 2 and the adjusting ring 5 are threadedly connected, so that when the adjusting ring 5 rotates, the adjusting ring 5 and the transmission shaft 22 move up and down relative to the main housing 2. The threaded connection mode can be: the internal threaded ring 24 is threadedly connected to the inner cylinder 29, or the external adjusting ring 5 is threadedly connected to the main housing 2.
[0035] Furthermore, a middle bearing 31 and a lower bearing 32 are respectively provided at the upper and lower ends of the inner cylinder 29 . The middle bearing 31 and the lower bearing 32 are respectively sleeved with the transmission shaft 22 . The lower end of the transmission shaft 22 is sleeved with a lower blocking ring 33 , and the lower blocking ring 33 is located below the lower bearing 32 .
[0036] The middle bearing 31 and the lower bearing 32 are provided to stabilize the transmission shaft 22, prevent it from shaking or reduce the shaking amplitude of the transmission shaft 22. Secondly, when the transmission shaft 22 moves up and down, the middle bearing 31 and the lower bearing 32 also move up and down together. The middle bearing 31 and the lower bearing 32 are respectively connected with the inner cylinder 29 by matching or clearance matching.
[0037] Furthermore, the lower end of the adjusting ring 5 is provided with a plurality of vertical grooves 20 distributed in a ring shape, and ridges are formed between adjacent vertical grooves 20. The upper end of the main shell 2 is provided with a plurality of mounting holes 27. A damping block 23 for preventing the ridge from rotating is provided in the mounting hole 27, and one end of the damping block 23 extends out of the mounting hole 27.
[0038] When adjusting the adjusting ring 5, in order to avoid a large rotation angle and rotation due to external force vibration, a damping block 23 and a plurality of vertical slots 20 are provided. One end of the damping block 23 may be a convex block 34. When the adjusting ring 5 rotates, a small friction occurs with the convex edge; during the friction, the adjusting ring 5 undergoes a slight elastic deformation, and then the convex block 34 enters the vertical slot 20. Preferably, an elastic member for pushing the damping block 23 outward is provided in the mounting hole 27. The provision of the elastic member allows the damping block 23 to be retracted.
[0039] See also Figures 1 to 4 ; Further, a power structure is provided above the adjusting ring 5, and the power structure includes: a rotating cover 6, a boss 35 matching with the upper end of the adjusting ring 5 is provided at the lower end of the rotating cover 6, the boss 35 is inserted into the adjusting ring 5, the cross-section of the connecting portion 30 is polygonal, and a socket matching with the upper end of the transmission shaft 22 is provided in the middle of the rotating cover 6, or a transmission block 15 is connected to the middle of the rotating cover 6, and a socket matching with the upper end of the transmission shaft 22 is provided in the middle of the transmission block 15.
[0040] The power mechanism can be a motor, etc., and you can refer to the background technical documents; this technical solution designs the power mechanism as a manual mode; considering that when the adjusting ring 5 rotates, the transmission shaft 22 will move with the adjusting ring 5 and rise and fall, the depth of the socket is greater than the length of the upper end of the transmission shaft 22, or; the upper end of the transmission shaft 22 does not completely fill the socket, and when the adjusting ring 5 is rotated and adjusted, the upper end of the transmission shaft 22 can move up and down against the socket. Secondly, the rotating cover 6 is inserted into the adjusting ring 5 through the boss 35 and can rotate relative to the adjusting ring 5; when rotating, because the socket and the upper end of the transmission shaft 22 are both polygonal columns, the rotating cover 6 drives the transmission shaft 22 to rotate.
[0041] Furthermore, one end of the rotating cover 6 is connected to a rotating rod 8 , and an outer end of the rotating rod 8 is provided with a bending portion and is connected to an operating head 10 .
[0042] An operating rod and a rotating head are provided to facilitate operation of the rotating cover 6 .
[0043] Furthermore, a protrusion 7 is extended outward at one end of the rotating cover 6, an L-shaped notch 18 is provided at the outer end of the protrusion 7, an axial hole 16 is provided at the outer end and is connected to an axle rod 9, the rotating rod 8 is provided with a waist-shaped hole 11, the middle part of the axle rod 9 passes through the waist-shaped hole 11, and an inner hole 17 for horizontal insertion of the rotating rod 8 is provided inside the protrusion 7.
[0044] The outer end is rotatably connected to the rotating rod 8 through the axial hole 16 and the shaft rod 9. Due to the provision of the L-shaped notch 18, the rotating rod 8 can be rotated within a range of 90 degrees and can be rotated from a horizontal state to a vertical state; when rotated to a horizontal state, in order to enable the rotating rod 8 to always maintain a horizontal state, the technical solution provides an inner hole 17 inside the protrusion 7, and the rotating rod 8 can be inserted into the inner hole 17, and the relative position of the shaft rod 9 and the waist-shaped hole changes.
[0045] Further, the lower end of the main housing 2 is detachably connected with a lower housing 1 with an open upper end, and the lower housing 1 is threadedly connected or sleeved with the main housing 2. The lower housing 1 is used to collect coffee powder.
[0046] Furthermore, friction patterns are provided on the surface of the main housing 2 .
[0047] When hand-cranking, the main housing 2 needs to be held by hand, and friction patterns are provided to facilitate hand holding.
[0048] The above contents are only preferred embodiments of the utility model. For ordinary technicians in this field, according to the concept of the utility model, there will be changes in the specific implementation method and application scope. The content of this specification should not be understood as a limitation on the utility model.
Claims
1. A coffee bean grinder, comprising: A grinding mechanism for grinding beans, the grinding mechanism comprising a main shell, the inner side surface of the lower end of the main shell is connected to a mother knife, and the characteristic is that: an adjusting ring is movably connected to the upper end of the main shell, and the adjusting ring can rotate relative to the main shell; the inner side surface of the adjusting ring is provided with an adjusting frame and connected to a transmission shaft, the lower end of the transmission shaft is connected to a sub-knife, the upper end of the transmission shaft extends out of the adjusting frame and forms a connecting part, a transmission structure is provided between the transmission shaft and the adjusting ring, when the adjusting ring rotates, the transmission shaft moves up and down relative to the main shell, and the transmission shaft can rotate relative to the adjusting ring.
2. A coffee bean grinder according to claim 1, characterized in that: The adjustment frame includes a connecting ring located in the middle and a plurality of supporting blocks connected to the inner side of the adjusting ring. The two ends of the supporting blocks are respectively connected to the connecting ring and the adjusting ring. A countersunk hole is provided in the middle of the upper end of the connecting ring. An upper bearing is provided in the countersunk hole. The transmission shaft is sleeved with the upper bearing.
3. A coffee bean grinder according to claim 2, characterized in that: The upper end of the upper bearing is provided with an external thread and is threadedly connected with an upper blocking ring, and the upper blocking ring is abutted against the connecting ring.
4. The coffee bean grinder according to claim 1, characterized in that: The side surface of the adjusting ring is provided with an annular scale, and the side surface of the main housing is provided with an indicating unit for indicating the scale.
5. The coffee bean grinder according to claim 2, characterized in that: An inner cylinder is provided inside the main shell, and a plurality of connecting blocks are provided between the inner cylinder and the main shell. The middle part of the transmission shaft passes through the inner cylinder, and a threaded ring is extended downward from the lower end of the connecting ring. An internal thread is provided at the upper end of the inner cylinder and is threadedly connected to the threaded ring; or, an internal thread is provided at the lower end of the adjusting ring, and an external thread is provided at the upper end of the main shell, and the adjusting ring is threadedly connected to the main shell.
6. The coffee bean grinder according to claim 5, characterized in that: The upper end and the lower end of the inner cylinder are respectively provided with a middle bearing and a lower bearing, the middle bearing and the lower bearing are respectively sleeved with the transmission shaft, the lower end of the transmission shaft is sleeved with a lower shielding ring, and the lower shielding ring is located below the lower bearing.
7. The coffee bean grinder according to claim 1, characterized in that: The lower end of the adjusting ring is provided with a plurality of vertical grooves distributed in an annular shape, and ridges are formed between adjacent vertical grooves. The upper end of the main shell is provided with a plurality of mounting holes, and a damping block for preventing the ridges from rotating is arranged in the mounting hole, and one end of the damping block extends out of the mounting hole.
8. The coffee bean grinder according to claim 1, characterized in that: A power structure is provided above the adjusting ring, and the power structure includes: a rotating cover, a boss matched with the upper end of the adjusting ring is provided at the lower end of the rotating cover, the boss is inserted into the adjusting ring, the cross-section of the connecting portion is polygonal, a socket matched with the upper end of the transmission shaft is provided in the middle of the rotating cover, or a transmission block is connected to the middle of the rotating cover, and a socket matched with the upper end of the transmission shaft is provided in the middle of the transmission block.
9. The coffee bean grinder according to claim 8, characterized in that: One end of the rotating cover is connected to a rotating rod, and the outer end of the rotating rod is provided with a bending portion and connected to an operating head.
10. The coffee bean grinder according to claim 9, characterized in that: A protrusion extends outward from one end of the rotating cover, an L-shaped notch is provided at the outer end of the protrusion, an axial hole is provided at the outer end and is connected to an axle rod, the rotating rod is provided with a waist-shaped hole, the middle part of the axle rod passes through the waist-shaped hole, and an inner hole is provided inside the protrusion for horizontal insertion of the rotating rod.