Grinding mechanism and bean grinder

Abstract

The grinding mechanism comprises a grinding assembly and an adjusting assembly, the grinding assembly comprises a grinding disc and a grinding head arranged on the inner side of the grinding disc, a grinding gap is formed between the grinding disc and the grinding head, and the grinding gap is provided with a feeding port and a powder outlet. The inner diameter of the grinding disc is gradually reduced from the feeding hole to the powder outlet and / or the outer diameter of the grinding head is gradually increased from the feeding hole to the powder outlet; the adjusting assembly comprises a first sleeve part arranged on the grinding disc in a sleeving mode and a second sleeve part arranged on the first sleeve part in a sleeving mode, the first sleeve part is in threaded fit with the second sleeve part, and the second sleeve part is used for driving the first sleeve part and the grinding disc to move towards the feeding port or the powder outlet so as to adjust the width of the grinding gap. The grinding thickness can be adjusted through the cooperation of the first sleeve piece, the second sleeve piece, the grinding disc and the grinding head, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee bean grinders, in particular to a grinding mechanism and a coffee bean grinder. Background Art

[0002] A coffee grinder is a device used to grind coffee beans into coffee powder. It usually consists of a container for holding coffee beans, a grinding mechanism, and a container for collecting the ground coffee powder.

[0003] The bean box device of the existing adjustable grinder moves together with the adjustment knob, and has a complex structure. In addition, the coarseness and fineness of the coffee powder must be readjusted every time the bean box device is disassembled and assembled, causing inconvenience. Utility Model Content

[0004] The main purpose of the utility model is to provide a grinding mechanism, aiming to solve the problem that the bean box device of the existing adjustable grinding machine moves together with the adjustment knob, the structure is complicated, and the coarseness of the coffee powder must be readjusted every time the bean box device is disassembled and assembled, causing inconvenience.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a grinding mechanism, comprising:

[0006] A grinding assembly, comprising a grinding disc and a grinding head disposed inside the grinding disc, a grinding gap is formed between the grinding disc and the grinding head, the grinding gap has a feed inlet and a powder outlet, the inner diameter of the grinding disc gradually decreases from the feed inlet to the powder outlet, and the outer diameter of the grinding head gradually increases from the feed inlet to the powder outlet;

[0007] The adjusting assembly comprises a first set sleeved on the grinding disc and a second set sleeved on the first set, wherein the first set is threadedly matched with the second set, and the second set is used to drive the first set and the grinding disc to move toward the feed port or the powder outlet to adjust the width of the grinding gap.

[0008] Optionally, the first set comprises a first ring sleeved on the grinding disc, and a second ring sleeved on the first ring, the side wall of the first ring is provided with a slot, and the second ring is provided with a block engaged with the slot;

[0009] The second ring is provided with connecting ribs penetrating through the first ring.

[0010] Optionally, a special-shaped ring is provided at one end of the grinding disc away from the powder outlet;

[0011] The first ring is sleeved on the special-shaped ring, and a first limiting block for limiting the special-shaped ring is provided on a side wall of the first ring.

[0012] Optionally, the second kit includes an adjusting gear sleeved on the second ring and a third ring sleeved on the adjusting gear, the adjusting gear is threadedly matched with the second ring, and the side wall of the third ring is provided with meshing teeth meshing with the adjusting gear.

[0013] Optionally, the third ring is connected to an adjusting knob, and a push plate is provided on the side wall of the adjusting knob.

[0014] Optionally, a fixing seat is provided on a side of the second kit away from the powder outlet, the adjusting knob is sleeved on the outside of the fixing seat, the adjusting knob is rotatably connected to the fixing seat, and a buckle groove for buckling the bean cup device is provided on a side wall of the fixing seat.

[0015] Optionally, a second limiting block is provided on the side wall of the fixing seat, and the second limiting block is used to limit the adjusting knob.

[0016] Optionally, a powder outlet shell is provided on a side of the first set away from the feed port, the powder outlet shell is sleeved on the second ring, and the powder outlet shell is slidably connected to the second ring;

[0017] A limiting groove is provided on the side wall of the powder outlet shell, and a third limiting block extending into the limiting groove is provided on the second ring.

[0018] Optionally, a gear set transmission-connected to the grinding head is provided in the powder outlet shell, and the gear set is connected to a motor.

[0019] In addition, the present invention also provides a coffee bean grinder, which comprises the grinding mechanism described above.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the grinding mechanism of the existing grinder is improved, including a grinding assembly and an adjusting assembly, the grinding assembly includes a grinding disc and a grinding head arranged inside the grinding disc, a grinding gap is formed between the grinding disc and the grinding head, the grinding gap has a feed port and a powder outlet, the inner diameter of the grinding disc gradually decreases from the feed port to the powder outlet, and the outer diameter of the grinding head gradually increases from the feed port to the powder outlet; the adjusting assembly includes a first set sleeved on the grinding disc, a second set sleeved on the first set, the first set and the second set are threadedly matched, and the second set is used to drive the first set and the grinding disc to move toward the feed port or the powder outlet to adjust the width of the grinding gap. The utility model can adjust the coarseness of the grinding powder through the cooperation of the first set, the second set, the grinding disc and the grinding head, and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional schematic diagram of the grinding mechanism of the utility model;

[0023] Figure 2 It is an exploded schematic diagram of the grinding mechanism of the utility model;

[0024] Figure 3 It is a partial exploded schematic diagram of the grinding mechanism of the utility model;

[0025] Figure 4 It is a three-dimensional schematic diagram of the second ring of the utility model;

[0026] Figure 5 It is a three-dimensional schematic diagram of the coffee bean grinder of the present invention.

[0027] Description of Figure Numbers:

[0028] 100. Grinding mechanism; 200. Bean grinder;

[0029] 10. Grinding disc; 11. Grinding head; 30. Fixed seat; 31. Powder outlet shell; 32. Gear set; 33. Motor; 101. Special-shaped ring; 201. First ring; 202. Second ring; 203. Slot; 204. Block; 205. Connecting rib; 206. First limit block; 207. Third limit block; 211. Adjusting gear; 212. Third ring; 213. Meshing teeth; 214. Adjusting knob; 215. Push plate; 301. Buckle slot; 302. Second limit block; 311. Limit slot.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0034] The utility model provides a grinding mechanism 100, referring to Figures 1 to 3 ,include:

[0035] The grinding assembly comprises a grinding disc 10 and a grinding head 11 disposed inside the grinding disc 10, a grinding gap is formed between the grinding disc 10 and the grinding head 11, the grinding gap has a feed inlet and a powder outlet, the inner diameter of the grinding disc 10 gradually decreases from the feed inlet to the powder outlet, and the outer diameter of the grinding head 11 gradually increases from the feed inlet to the powder outlet;

[0036] The adjusting assembly includes a first set sleeved on the grinding disc 10 and a second set sleeved on the first set, wherein the first set is threadedly matched with the second set, and the second set is used to drive the first set and the grinding disc 10 to move toward the feed port or the powder outlet to adjust the width of the grinding gap.

[0037] In the utility model, when the second set is rotated, the second set drives the first set to move toward the feed port or the powder outlet, so that the grinding disc 10 moves toward the feed port or the powder outlet relative to the grinding head 11. Since the inner diameter of the grinding disc 10 gradually decreases from the feed port to the powder outlet, and the outer diameter of the grinding head 11 gradually increases from the feed port to the powder outlet, when the grinding disc 10 moves toward the powder outlet, the grinding disc 10 corresponds to the smaller outer diameter part of the grinding head 11, and the width of the grinding gap decreases, thereby making the ground powder finer. When the grinding disc 10 moves toward the feed port, the grinding disc 10 corresponds to the larger outer diameter part of the grinding head 11, and the width of the grinding gap increases, thereby making the ground powder coarser. The coarseness and fineness of the ground powder can be adjusted by the cooperation of the first set, the second set, the grinding disc and the grinding head, and the structure is simple and the operation is convenient.

[0038] The first set includes a first ring 201 sleeved on the grinding disc 10, and a second ring 202 sleeved on the first ring 201. The side wall of the first ring 201 is provided with a slot 203, and the second ring 202 is provided with a block 204 engaged with the slot 203; the second ring 202 is provided with a connecting rib 205 that runs through the first ring 201. The first ring 201 and the second ring 202 are connected by the engagement of the slot 203 and the block 204, ensuring the reliability of the connection between the first ring 201 and the second ring 202. The connecting rib 205 can further improve the connection stability between the first ring 201 and the second ring 202, and prevent the first ring 201 and the second ring 202 from relative movement.

[0039] The end of the grinding disc 10 away from the powder outlet is provided with a special-shaped ring 101; the first ring 201 is sleeved on the special-shaped ring 101, and the side wall of the first ring 201 is provided with a first stopper 206 for limiting the special-shaped ring 101. The first ring 201 has an inner cavity corresponding to the shape of the special-shaped ring 101, and the first stopper 206 is arranged in the inner cavity, and is used to fix the special-shaped ring 101 in the inner cavity. When the first ring 201 moves toward the feed inlet or the powder outlet, the grinding disc 10 can be driven to move synchronously through the special-shaped ring 101, and because the special-shaped ring 101 cannot rotate in the inner cavity, the grinding disc 10 and the first ring 201 cannot rotate relative to each other, which can ensure the stable connection between the first ring 201 and the grinding disc 10. Optionally, the surface of one side of the first stopper 206 close to the middle of the inner cavity is set as an inclined surface, and the setting of the inclined surface facilitates the installation of the special-shaped ring 101 and the first ring 201.

[0040] The second set includes an adjusting gear 211 sleeved on the second ring 202, and a third ring 212 sleeved on the adjusting gear 211. The adjusting gear 211 is threadedly matched with the second ring 202, and the side wall of the third ring 212 is provided with meshing teeth 213 meshed with the adjusting gear 211. The meshing teeth 213 mesh with the adjusting gear 211, and when the third ring 212 is rotated, the adjusting gear 211 rotates synchronously, and the adjusting gear 211 drives the second ring 202 to move toward the feed port or the powder outlet through the thread.

[0041] The third ring 212 is connected to an adjusting knob 214, and a push plate 215 is provided on the side wall of the adjusting knob 214. The adjusting knob 214 is sleeved on the outside of the fixing seat 30. Since the fixing seat 30 is used to fix the bean cup device, its outer diameter is relatively large, so the outer diameter of the adjusting knob 214 is also relatively large. When the user rotates and adjusts, it is impossible to hold the entire adjusting knob 214, and it is easy to slip. By providing the push plate 215, the user can rotate the adjusting knob 214 by pushing the push plate 215, which is convenient for operation.

[0042] A fixing seat 30 is provided on the side of the second set away from the powder outlet, and the adjusting knob 214 is sleeved on the outer side of the fixing seat 30. The adjusting knob 214 is rotatably connected to the fixing seat 30, and a buckle groove 301 for buckling the bean cup device is provided on the side wall of the fixing seat 30. The bean cup device is installed on the fixing seat 30. When the adjusting knob 214 is rotated, the fixing seat 30 does not rotate, and thus the bean cup device does not rotate either. Therefore, after installing and removing the bean cup device, there is no need to readjust the coarseness of the ground powder, and the practicality is higher.

[0043] The side wall of the fixing seat 30 is provided with a second limit block 302, and the second limit block 302 is used to limit the adjusting knob 214. The second limit block 302 limits the adjusting knob 214, which can prevent the adjusting knob 214 from over-rotating, causing the grinding head 11 and the grinding disc 10 to deviate greatly and fail to grind.

[0044] A powder discharge shell 31 is provided on one side of the first set away from the feed port, and the powder discharge shell 31 is sleeved on the second ring 202, and the powder discharge shell 31 is slidably connected to the second ring 202; a limiting groove 311 is provided on the side wall of the powder discharge shell 31, and the second ring 202 is provided with a third limiting block 207 extending into the limiting groove 311. The limiting groove 311 can limit the rotation of the third limiting block 207, thereby limiting the rotation of the first ring 201, the second ring 202 and the grinding disc 10, and the overall structural connection is more stable.

[0045] The powder outlet shell 31 is provided with a gear set 32 ​​which is transmission-connected to the grinding head 11, and the gear set 32 ​​is connected to a motor 33. Driven by the motor 33, the gear set 32 ​​is driven to rotate the grinding head 11 relative to the grinding disc 10, thereby grinding the coffee beans in the grinding gap into coffee powder.

[0046] The present invention further provides a coffee bean grinder 200, which includes a grinding mechanism 100. The specific structure of the grinding mechanism 100 refers to the above embodiment. Since the coffee bean grinder 200 provided by the present invention includes all schemes of all embodiments of the above grinding mechanism 100, it has at least the same technical effects as the grinding mechanism 100, which will not be elaborated here one by one.

[0047] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A grinding mechanism, characterized in that: include: A grinding assembly, comprising a grinding disc and a grinding head disposed inside the grinding disc, a grinding gap is formed between the grinding disc and the grinding head, the grinding gap has a feed inlet and a powder outlet, the inner diameter of the grinding disc gradually decreases from the feed inlet to the powder outlet, and the outer diameter of the grinding head gradually increases from the feed inlet to the powder outlet; The adjusting assembly comprises a first set sleeved on the grinding disc and a second set sleeved on the first set, wherein the first set is threadedly matched with the second set, and the second set is used to drive the first set and the grinding disc to move toward the feed port or the powder outlet to adjust the width of the grinding gap.

2. The grinding mechanism according to claim 1, characterized in that: The first set comprises a first ring sleeved on the grinding disc and a second ring sleeved on the first ring, a side wall of the first ring is provided with a slot, and the second ring is provided with a block engaged with the slot; The second ring is provided with connecting ribs penetrating through the first ring.

3. The grinding mechanism according to claim 2, characterized in that: The end of the grinding disc away from the powder outlet is provided with a special-shaped ring; The first ring is sleeved on the special-shaped ring, and a first limiting block for limiting the special-shaped ring is provided on a side wall of the first ring.

4. The grinding mechanism according to claim 2, characterized in that: The second set comprises an adjusting gear sleeved on the second ring and a third ring sleeved on the adjusting gear. The adjusting gear is threadedly matched with the second ring, and a side wall of the third ring is provided with meshing teeth meshing with the adjusting gear.

5. The grinding mechanism according to claim 4, characterized in that: The third ring is connected with an adjusting knob, and a push plate is arranged on the side wall of the adjusting knob.

6. The grinding mechanism according to claim 5, characterized in that: A fixing seat is provided on a side of the second kit away from the powder outlet, the adjusting knob is sleeved on the outside of the fixing seat, the adjusting knob is rotatably connected to the fixing seat, and a buckle groove for buckling the bean cup device is provided on the side wall of the fixing seat.

7. The grinding mechanism according to claim 6, characterized in that: A second limiting block is disposed on the side wall of the fixing seat, and the second limiting block is used for limiting the adjusting knob.

8. The grinding mechanism according to claim 2, characterized in that: A powder outlet shell is provided on one side of the first set away from the feed port, the powder outlet shell is sleeved on the second ring, and the powder outlet shell is slidably connected to the second ring; A limiting groove is provided on the side wall of the powder outlet shell, and a third limiting block extending into the limiting groove is provided on the second ring.

9. The grinding mechanism according to claim 8, characterized in that: A gear set which is transmission-connected to the grinding head is arranged in the powder outlet shell, and the gear set is connected to a motor.

10. A coffee bean grinder, characterized in that: The coffee bean grinder comprises the grinding mechanism according to any one of claims 1-9.

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