Grinding degree external adjusting mechanism and coffee bean grinder

Abstract

The utility model provides a grinding degree external adjusting mechanism and a coffee bean grinder. The grinding degree external adjusting mechanism comprises a grinding head assembly, a cover body and an external adjusting ring; the grinding head assembly is movably arranged in the bean grinder main body so as to grind coffee beans; the cover body is mounted on the transmission shaft and is used for covering the bean feeding port; the outer adjusting ring is used for being arranged at the bean feeding port and located between the cover body and the bean feeding port. The outer adjusting ring is provided with a lower edge sealing bean grinding area, and the lower edge sealing bean grinding area is used for abutting against the side wall of the bean grinder body in a sliding mode; the outer adjusting ring is connected to the transmission shaft and is movably connected to the peripheral wall of the bean grinder main body; when the outer adjusting ring is moved, the outer adjusting ring, the transmission shaft and the cover body ascend and descend synchronously, so that the preset gap between the outer adjusting ring and the cover body is constant when the outer adjusting ring is twisted, friction or interference between the cover body and the bean feeding port can be avoided by arranging the outer adjusting ring at the bean feeding port, and external pollutants can be blocked through the preset gap.

Description

Technical Field

[0001] This disclosure relates to the technical field of coffee bean grinding, and in particular to a grind adjustment mechanism and a coffee grinder. Background Technology

[0002] With the improvement of living standards, coffee has gradually become integrated into people's daily lives. Because people have different tastes in coffee, and the particle size of coffee powder directly affects its flavor, different requirements have been placed on the grind size of coffee beans. For example, the coffee grinder disclosed in Chinese patent document CN221489758U mainly adjusts the grind size by adjusting a ring to drive the grinding component to rise and fall on the grinding disc. However, in this grinder, the grinding component extends a drive shaft to the end cap. The end cap is fitted onto the drive shaft to drive the grinding component. When the user adjusts the grind size, the drive shaft synchronously moves the end cap. When the drive shaft rises, the gap between the end cap and the feed inlet of the grinder body widens, making it easier for foreign objects to enter the housing and cause contamination. Conversely, when the drive shaft descends, the gap between the end cap and the feed inlet of the grinder body narrows, making it prone to friction or interference between the end cap and the housing during operation. Utility Model Content

[0003] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a simple and compact external grind adjustment mechanism and coffee grinder that can reduce interference from the lid or foreign objects entering the bean feeding port during grind adjustment.

[0004] The purpose of this disclosure is achieved through the following technical solution:

[0005] A grinding degree adjustment mechanism, comprising:

[0006] A grinding head assembly is movably disposed within the main body of a coffee grinder to grind coffee beans; the drive shaft of the grinding head assembly extends out of the bean feeding port of the main body of the coffee grinder.

[0007] A cover, the cover being mounted on the drive shaft and used to cover the bean-feeding port; and

[0008] An outer adjusting ring is provided at the bean feeding port and located between the cover and the bean feeding port. The outer adjusting ring has a lower edge sealing grinding area, which is used to slide against the side wall of the grinder body. The outer adjusting ring is connected to the drive shaft and is movably connected to the peripheral wall of the grinder body. The outer adjusting ring is used to move synchronously with the drive shaft when moving relative to the grinder body, so that the preset gap between the outer adjusting ring and the cover remains constant.

[0009] In one embodiment, the outer adjustment ring extends toward the peripheral wall of the bean-feeding port and forms a collar portion; the collar portion is used to engage with the peripheral wall of the bean-feeding port by means of a thread.

[0010] In one embodiment, the thread pitch is 0.5 mm to 2.5 mm.

[0011] In one embodiment, the outer adjustment ring extends toward the peripheral wall of the bean-feeding port and forms an annular damping portion; the annular damping portion is used to slide against a retaining member on the peripheral wall of the bean-feeding port.

[0012] In one embodiment, the annular damping portion has a plurality of grooved stop positions, which are spaced apart on the moving path of the abutment to limit the rotation angle of the outer adjusting ring.

[0013] In one embodiment, the outer peripheral wall of the outer adjustment ring is provided with an adjustment scale, which is used to correspond to the indicator marks on the main body of the grinder.

[0014] In one embodiment, the grinding degree adjustment mechanism further includes a crank handle and a mounting block. The mounting block is fixedly connected to the cover, and a swing cavity and a transmission locking cavity are formed between the cover and the mounting block. The movable end of the crank handle slides in the swing cavity or the transmission locking cavity to switch the crank handle between the transmission state and the storage state.

[0015] In one embodiment, the crank handle is provided with a grip; the pivot of the grip passes through the crank handle and forms a buffer portion; the buffer portion is used to abut against the main body of the grinder when the crank handle is in the retracted state.

[0016] In one embodiment, a first magnet is installed on the cavity wall of the transmission card cavity, and a second magnet is installed on the movable end of the crank handle; the first magnet is used to magnetically connect to the second magnet when the crank handle is in the transmission state.

[0017] A coffee grinder includes a grinder body and an external grind adjustment mechanism according to any of the above embodiments; the grinder head assembly is movably disposed within the grinder body, and the drive shaft of the grinder head assembly extends out of the bean feeding port of the grinder body; a cover is disposed on the bean feeding port; and an external adjustment ring is disposed between the cover and the bean feeding port and is threadedly connected to the peripheral wall of the grinder body.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] 1) Because the outer adjusting ring is connected to the drive shaft of the grinding head assembly and is also movably connected to the peripheral wall of the grinder body, the grinding effect of the grinding head assembly can be adjusted by moving the outer adjusting ring to drive the drive shaft to rise and fall. Furthermore, because the lid is mounted on the drive shaft, and the outer adjusting ring is located between the lid and the bean feeding port, the lid moves relative to the bean feeding port during the rise and fall of the drive shaft. Simultaneously, the outer adjusting ring rises and falls synchronously relative to the lid at the bean feeding port, thus maintaining a constant preset gap between the outer adjusting ring and the lid.

[0020] 2) Compared to existing coffee grinders, the aforementioned external grind adjustment mechanism, when the external adjustment ring is moved, causes the external adjustment ring, drive shaft, and lid to rise and fall synchronously. This maintains a preset gap between the rotating external adjustment ring and the lid. By placing the external adjustment ring at the bean inlet, not only is friction or interference between the lid and the bean inlet avoided, but the lower edge of the external adjustment ring also seals the grinding area and slides against the side wall of the grinder body, creating a sealing barrier. This ensures that the bean inlet can only communicate with the outside through the preset gap, preventing external contaminants from entering the grinder body. Furthermore, the aforementioned external grind adjustment mechanism has fewer parts, a more compact and aesthetically pleasing structure, and is easier to manufacture and assemble than existing technologies. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a partial cross-sectional view of a grinding fine adjustment mechanism installed on the main body of a coffee grinder according to an embodiment of the present disclosure;

[0023] Figure 2 for Figure 1 A partial exploded view of the grinding degree adjustment mechanism shown;

[0024] Figure 3 for Figure 1 An exploded view of the cover and crank handle of the grinding degree adjustment mechanism shown;

[0025] Figure 4 This is a schematic diagram of the structure of a coffee grinder according to another embodiment of the present disclosure.

[0026] Reference numerals: 10, coffee grinder; 100, external grind adjustment mechanism; 110, grinder head assembly; 1110, drive shaft; 1120, grinder head; 120, cover; 130, external adjustment ring; 1310, adjustment scale; 1301, preset gap; 1320, collar part; 1330, annular damping part; 1331, grooved stop position; 140, crank handle; 1410, movable end; 1411, second... Magnet; 150, Mounting block; 1501, Swinging cavity; 1502, Transmission locking cavity; 1520, First magnet; 160, Handle; 1610, Rotating shaft; 1611, Buffer section; 200, Grinder body; 210, Supporting component; 220, Support frame; 2210, Grinding disc; 230, Supporting beam; 240, Supporting beam; 201, Bean feeding port; 202, Indicator mark; 250, Anti-slip washer. Detailed Implementation

[0027] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0031] like Figure 1As shown, an embodiment of the external grind adjustment mechanism 100 includes a grinder assembly 110, a cover 120, and an external adjustment ring 130. The grinder assembly 110 is movably disposed within the grinder body 200 to grind coffee beans. The drive shaft 1110 of the grinder assembly 110 extends out of the bean feeding port 201 of the grinder body 200. The cover 120 is mounted on the drive shaft 1110 and is used to cover the bean feeding port 201. The external adjustment ring 130 is disposed at the bean feeding port 201 and is located on the cover. Between 120 and the bean feeding port 201; the outer adjusting ring 130 has a lower edge sealing grinding area, which is used to slide against the side wall of the grinder body 200 to provide a sealing and blocking function; the outer adjusting ring 130 is connected to the drive shaft 1110 and is used to be movably connected to the peripheral wall of the grinder body 200; the outer adjusting ring 130 is used to move synchronously with the drive shaft 1110 when moving relative to the grinder body 200, so that the preset gap 1301 between the outer adjusting ring 130 and the cover 120 is constant.

[0032] It is understandable that, since the outer adjusting ring 130 is connected to the drive shaft 1110 of the grinding head assembly 110, and simultaneously movably connected to the peripheral wall of the grinder body 200, the grinding effect of the grinding head assembly 110 can be adjusted by moving the outer adjusting ring 130 to drive the drive shaft 1110 to rise and fall. Furthermore, since the cover 120 is mounted on the drive shaft 1110, and the outer adjusting ring 130 is located between the cover 120 and the bean feeding port 201, the drive shaft 1110 will move the cover 120 relative to the bean feeding port 201 during its rise and fall. Simultaneously, the outer adjusting ring 130 will rise and fall synchronously with the cover 120 on the bean feeding port 201, thus keeping the preset gap 1301 between the outer adjusting ring 130 and the cover 120 constant.

[0033] It is understood that, compared with existing coffee grinders, the aforementioned external grind adjustment mechanism 100, when moving the external adjustment ring 130, causes the external adjustment ring 130, drive shaft 1110, and cover 120 to rise and fall synchronously. This ensures that the torsional external adjustment ring 130 and cover 120 maintain a preset gap 1301. By positioning the external adjustment ring 130 at the bean feeding port 201, not only is friction or interference between the cover 120 and the bean feeding port 201 avoided, but the lower edge of the external adjustment ring 130 seals the grinding area and slides against the side wall of the grinder body 200, providing a sealing and blocking effect. This ensures that the bean feeding port 201 can only communicate with the outside world through the preset gap 1301, which also prevents external contaminants from entering the grinder body 200. Furthermore, the aforementioned external grind adjustment mechanism 100 has fewer parts, a more compact and aesthetically pleasing structure, and is easier to manufacture and assemble compared to existing technologies.

[0034] In one embodiment, the outer adjusting ring 130 is threadedly connected to the peripheral wall of the grinder body 200, allowing the grinding effect of the grinder assembly 110 on coffee beans to be adjusted by twisting the outer adjusting ring 130 to drive the drive shaft 1110 to rise and fall. In another embodiment, the outer adjusting ring 130 is slidably connected to the peripheral wall of the grinder body 200, allowing the grinding effect of the grinder assembly 110 on coffee beans to be adjusted by pushing the outer adjusting ring 130 to drive the drive shaft 1110 to rise and fall. Specifically, after pushing the outer adjusting ring 130 to slide, the outer adjusting ring 130 and the grinder body 200 are locked together. It should be noted that this is only an example and is not intended to limit the connection method between the outer adjusting ring 130 and the peripheral wall of the grinder body 200. Those skilled in the art can use other connection methods.

[0035] Combination Figure 1 As shown, in one embodiment, the preset gap 1301 is 0.7mm to 0.8mm. It is understood that by setting the preset gap 1301 to 0.7mm to 0.8mm, external contaminants can be effectively blocked, while reducing friction or interference between the cover 120 and the outer adjusting ring 130. The preset gap 1301 can be 0.7mm, 0.75mm, or 0.8mm; it is not limited here, and those skilled in the art can make other choices as needed. In another embodiment, the outer adjusting ring 130 extends towards the drive shaft 1110 and forms a supporting beam 230; the supporting beam 230 is rotatably connected to the drive shaft 1110 via ball bearings, so that the drive shaft 1110 can not only be driven to move up and down by the outer adjusting ring 130, but also rotate relative to the outer adjusting ring 130 to grind coffee beans.

[0036] Combination Figure 1 As shown, in one embodiment, the outer adjusting ring 130 extends towards the peripheral wall of the bean feeding port 201, forming a collar portion 1320; the collar portion 1320 is used to thread into the peripheral wall of the bean feeding port 201. It can be understood that by threading the collar portion 1320 into the peripheral wall of the bean feeding port 201, the collar portion 1320 has a larger force-bearing surface, making the outer adjusting ring 130 more securely threaded onto the grinder body 200, thus reducing the likelihood of loosening. The outer adjusting ring 130 can be threaded into either the inner or outer peripheral wall of the bean feeding port 201; this is not limited, and those skilled in the art can make other configurations.

[0037] Combination Figure 1As shown, the thread pitch is further 0.5mm to 2.5mm. It can be understood that by setting the thread pitch within the range of 0.5mm to 2.5mm, and by rotating the outer adjusting ring 130 at different angles within a circumference, the drive shaft 1110 can be raised and lowered slightly within the range of 0.5mm to 2.5mm, thereby achieving fine adjustment of the grinding head assembly 110 to accurately grind coffee powder of various particle sizes. In this embodiment, the thread pitch is 0.5mm, 2.3mm, or 2.5mm; however, this is not limited, and those skilled in the art can make other choices as needed. Specifically, the outer adjusting ring 130 may also be marked with 1 to 9, forming nine positions within a circumference. With a thread pitch of 2.3mm, each position adjusts by approximately 0.25mm, achieving more precise adjustment of the grinding head assembly 110.

[0038] Combination Figure 1 As shown, in one embodiment, the outer adjusting ring 130 extends towards the peripheral wall of the bean-feeding port 201, forming an annular damping portion 1330; the annular damping portion 1330 is used to slide against the retaining member 210 on the peripheral wall of the bean-feeding port 201. It can be understood that by causing the annular damping portion 1330 to slide against the retaining member 210 on the peripheral wall of the bean-feeding port 201, when the outer adjusting ring 130 is twisted to rotate, the mechanical sound emitted by the retaining member 210 sliding on the annular damping portion 1330 provides feedback to the user, making it more convenient to use. In this embodiment, the retaining member 210 is a ball-head plunger to reduce contact friction. However, this is not a limitation; the retaining member 210 can also be columnar, toothed, block-shaped, or other similarly shaped structures, which can be selected by those skilled in the art as needed.

[0039] Combination Figure 2As shown, in this embodiment, a plurality of grooved stop positions 1331 are formed on the annular damping portion 1330. The plurality of grooved stop positions 1331 are spaced apart on the moving path of the supporting member 210 to limit the rotation angle of the outer adjusting ring 130. It can be understood that since the plurality of grooved stop positions 1331 formed on the annular damping portion 1330 are spaced apart on the moving path of the supporting member 210, when the outer adjusting ring 130 is twisted to rotate, the supporting member 210 can jump between two adjacent grooved stop positions 1331, thereby allowing the outer adjusting ring 130 to rotate and stop at different rotation angles, thereby allowing the coffee grinder 10 to maintain the adjusted grind size. Specifically, the grooved stop position 1331 can be a guide groove extending towards the edge of the outer adjusting ring 130 to facilitate the assembly of the outer adjusting ring 130. That is, the retaining member 210 enters the grooved stop position 1331 from the edge of the outer adjusting ring 130. Of course, the grooved stop position 1331 can be designed as a square groove, an arc groove, etc., and there is no limitation here. Those skilled in the art can choose according to their needs. Specifically, the outer adjusting ring 130 can also be provided with markings from 1 to 9 to indicate the gear position, so that the outer adjusting ring 130 can be maintained in different gear positions.

[0040] Combination Figure 2 As shown, in one embodiment, the outer peripheral wall of the outer adjustment ring 130 is provided with an adjustment scale 1310, which corresponds to the indicator mark 202 on the grinder body 200. It can be understood that by providing the adjustment scale 1310 on the outer peripheral wall of the outer adjustment ring 130, when the outer adjustment ring 130 is rotated, the user can easily identify the currently adjusted grind level by aligning the indicator mark 202 on the grinder body 200 with the adjustment scale 1310. Specifically, the adjustment scale 1310 includes several Arabic numerals, for example, in this embodiment, it includes multiple numbers from 1 to 9, thus representing 9 levels for user selection.

[0041] Combination Figure 3 and Figure 4As shown, in one embodiment, the external grinding adjustment mechanism 100 further includes a crank handle 140 and a mounting block 150. The mounting block 150 is fixedly connected to the cover 120, and a connecting swing cavity 1501 and a transmission locking cavity 1502 are formed between the cover 120 and the mounting block 150. The movable end 1410 of the crank handle 140 slides in the swing cavity 1501 or the transmission locking cavity 1502, so that the crank handle 140 can switch between the transmission state and the storage state. It can be understood that since the movable end 1410 of the crank handle 140 slides in the swing cavity 1501 or the transmission locking cavity 1502, when the crank handle 140 is in the transmission state, the movable end 1410 of the crank handle 140 is located in the transmission locking cavity 1502. The transmission locking cavity 1502 constrains the crank handle 140 and makes the extension direction of the crank handle parallel to the extension direction of the transmission locking cavity 1502, so that the user can grind coffee beans by driving the cover 120 and the grinding head assembly 110 through the crank handle 140. When the crank handle 140 is in the retracted state, the movable end 1410 of the crank handle 140 is located in the swing cavity 1501. The movable end 1410 of the crank handle 140 rotates within the swing cavity 1501, thereby causing the crank handle 140 to rotate to be perpendicular to the extension direction of the transmission locking cavity 1502, so as to reduce the space occupied by the lateral extension of the crank handle 140 and make it more convenient for the user to use. In another embodiment, the crank handle 140 of the grinding degree adjustment mechanism 100 is directly fixedly connected to the cover 120, for example, integrally formed on the cover 120. That is, the crank handle 140 can be set to a non-foldable form to facilitate the user to apply force. Of course, there is no limitation here, and those skilled in the art can choose according to their needs.

[0042] Combination Figure 4 As shown, in this embodiment, the crank handle 140 is provided with a grip 160; the pivot 1610 of the grip 160 passes through the crank handle 140 and forms a buffer portion 1611; the buffer portion 1611 is used to abut against the grinder body 200 when the crank handle 140 is in the retracted state. It can be understood that the pivot 1610 of the grip 160 passes through the crank handle 140 to form the buffer portion 1611. When the crank handle 140 is in the retracted state, the crank handle 140 rotates to be perpendicular to the extension direction of the transmission cavity 1502. By abutting against the grinder body 200 through the buffer portion 1611, the impact on the grinder body 200 when the crank handle 140 is retracted can be reduced.

[0043] Combination Figure 4As shown, in one embodiment, a first magnet 1520 is installed on the cavity wall of the transmission cavity 1502, and a second magnet 1411 is installed on the movable end 1410 of the crank handle 140. The first magnet 1520 is magnetically connected to the second magnet 1411 when the crank handle 140 is in the transmission state. It can be understood that since the first magnet 1520 is installed on the cavity wall of the transmission cavity 1502 and the second magnet 1411 is installed on the movable end 1410 of the crank handle 140, when the crank handle 140 is in the transmission state, by making the first magnet 1520 magnetically connected to the second magnet 1411, it is possible to further prevent the movable end 1410 of the crank handle 140 from disengaging from the transmission cavity 1502 when in the transmission state, thereby facilitating transmission. Meanwhile, when the crank handle 140 switches from the storage state to the driving state, the first magnet 1520 and the second magnet 1411 are attracted by magnetic force, pushing the movable end 1410 of the crank handle 140 into the transmission cavity 1502 to achieve a semi-automatic switching effect.

[0044] like Figure 1 and Figure 4 As shown, this disclosure also provides a coffee grinder 10 including a grinder body 200 and a grind adjustment mechanism 100 of any of the above embodiments; a grinder head assembly 110 is movably disposed within the grinder body 200, and the drive shaft 1110 of the grinder head assembly 110 extends out of the bean feeding port 201 of the grinder body 200; a cover 120 is disposed on the bean feeding port 201; an outer adjustment ring 130 is disposed on the bean feeding port 201, located between the cover 120 and the bean feeding port 201, and threadedly connected to the peripheral wall of the grinder body 200. It can be understood that by applying the grind adjustment mechanism 100 of this disclosure to the coffee grinder 10, and by disposing of the outer adjustment ring 130 on the bean feeding port 201, not only can friction or interference between the cover 120 and the bean feeding port 201 be avoided, but the bean feeding port 201 is only connected to the outside through a preset gap 1301, so that external contaminants can be blocked from the outside by the preset gap 1301. Meanwhile, the aforementioned external grind adjustment mechanism 100 has fewer parts, a more compact and aesthetically pleasing structure, and is easier to manufacture and assemble compared to existing technologies. In one embodiment, an anti-slip pad 250 is installed at the bottom of the grinder body 200 to prevent the coffee grinder 10 from slipping when placed on the ground.

[0045] Combination Figure 4As shown, in one embodiment, the grinding head assembly 110 includes a grinding head 1120 and a drive shaft 1110 connected together. The grinding head 1120 is located inside the grinding disc 2210 within the coffee grinder body 200. A support beam 240 is provided inside the coffee grinder body 200. The support beam 240 is rotatably connected to the drive shaft 1110. The grinding disc 2210 is mounted on a support frame 220 on the inner wall of the coffee grinder body 200. The groove of the support frame 220 engages with the protrusion on the support beam 240 to form a joint. The joints are connected by screws, thereby improving the installation reliability of the grinding disc 2210 in the coffee grinder 10 and making it more convenient for users to perform grinding operations.

[0046] Compared with the prior art, this disclosure has at least the following advantages:

[0047] 1) Since the outer adjusting ring 130 is connected to the drive shaft 1110 of the grinding head assembly 110, and is also movably connected to the peripheral wall of the grinder body 200, the grinding effect of the grinding head assembly 110 can be adjusted by moving the outer adjusting ring 130 to drive the drive shaft 1110 to rise and fall. Furthermore, since the cover 120 is mounted on the drive shaft 1110, and the outer adjusting ring 130 is located between the cover 120 and the bean feeding port 201, the drive shaft 1110 will move the cover 120 relative to the bean feeding port 201 during the rising and falling of the drive shaft 1110. Simultaneously, the outer adjusting ring 130 will rise and fall synchronously with the cover 120 on the bean feeding port 201, thus keeping the preset gap 1301 between the outer adjusting ring 130 and the cover 120 constant.

[0048] 2) Compared with existing coffee grinders, the aforementioned external grind adjustment mechanism 100, when moving the external adjustment ring 130, causes the external adjustment ring 130, drive shaft 1110, and cover 120 to rise and fall synchronously. This maintains a preset gap 1301 between the rotating external adjustment ring 130 and the cover 120. By positioning the external adjustment ring 130 at the bean feeding port 201, friction or interference between the cover 120 and the bean feeding port 201 is avoided. Furthermore, the lower edge of the external adjustment ring 130 seals the grinding area and slides against the side wall of the grinder body 200, creating a sealing barrier. This ensures that the bean feeding port 201 can only communicate with the outside world through the preset gap 1301, preventing external contaminants from entering the grinder body 200. Additionally, the aforementioned external grind adjustment mechanism 100 has fewer parts, a more compact and aesthetically pleasing structure, and is easier to manufacture and assemble compared to existing technologies.

[0049] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A grinding degree external adjustment mechanism, characterized in that, include: A grinding head assembly, which is movably disposed within the main body of a coffee grinder to grind coffee beans; The drive shaft of the grinding head assembly extends out of the bean feeding port of the main body of the grinder. A cover body, which is mounted on the drive shaft and is used to cover the bean feeding port; and An outer adjustment ring is provided at the bean feeding port and located between the cover and the bean feeding port; the outer adjustment ring has a lower edge sealing grinding area, which is used to slide against the side wall of the grinder body. The outer adjusting ring is connected to the drive shaft and is movably connected to the peripheral wall of the grinder body; the outer adjusting ring is used to move synchronously with the drive shaft when moving relative to the grinder body, so that the preset gap between the outer adjusting ring and the cover is constant.

2. The grinding degree adjustment mechanism according to claim 1, characterized in that, The outer adjustment ring extends toward the peripheral wall of the bean feeding port and forms a collar portion; the collar portion is used to engage with the peripheral wall of the bean feeding port by means of a thread.

3. The grinding degree adjustment mechanism according to claim 2, characterized in that, The thread pitch is 0.5 mm to 2.5 mm.

4. The grinding degree adjustment mechanism according to claim 1, characterized in that, The outer adjustment ring extends toward the peripheral wall of the bean-feeding port and forms an annular damping part; the annular damping part is used to slide against the abutment on the peripheral wall of the bean-feeding port.

5. The grinding degree external adjustment mechanism according to claim 4, characterized in that, The annular damping part has multiple grooved stop positions, which are spaced apart on the moving path of the abutment to limit the rotation angle of the outer adjusting ring.

6. The grinding degree adjustment mechanism according to any one of claims 1 or 5, characterized in that, The outer peripheral wall of the outer adjustment ring is provided with an adjustment scale, which is used to correspond to the indicator marks on the main body of the grinder.

7. The grinding degree adjustment mechanism according to claim 1, characterized in that, The grinding degree adjustment mechanism also includes a crank and a mounting block. The mounting block is fixedly connected to the cover, and a swing cavity and a transmission locking cavity are formed between the cover and the mounting block. The movable end of the crank slides in the swing cavity or the transmission locking cavity to switch the crank between the transmission state and the storage state.

8. The grinding degree adjustment mechanism according to claim 7, characterized in that, The crank handle is provided with a grip; the pivot of the grip passes through the crank handle and forms a buffer part; the buffer part is used to support the main body of the grinder when the crank handle is in the retracted state.

9. The grinding degree adjustment mechanism according to claim 7, characterized in that, A first magnet is installed on the cavity wall of the transmission card cavity, and a second magnet is installed on the movable end of the crank handle; the first magnet is used to magnetically connect to the second magnet when the crank handle is in the transmission state.

10. A coffee grinder, characterized in that, The invention includes a coffee grinder body and an external grind adjustment mechanism as described in any one of claims 1 to 9; the grinding head assembly is movably disposed within the coffee grinder body, and the drive shaft of the grinding head assembly extends out of the coffee feed port of the coffee grinder body; the cover is disposed at the coffee feed port; and the external adjustment ring is disposed between the cover and the coffee feed port and is threadedly connected to the peripheral wall of the coffee grinder body.

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