Portable bean grinder

Abstract

The utility model provides a portable bean grinder which comprises an upper cover, a main body and a lower cover, the main body comprises a machine shell and a bean grinding assembly arranged in the machine shell, the upper cover and the lower cover are detachably connected to the upper end and the lower end of the machine shell respectively, the portable bean grinder further comprises a powder cup and a jacking piece, and the powder cup is detachably arranged in the lower cover. A plurality of liquid outlet holes are formed in the powder cup, the jacking piece is arranged between the lower cover and the powder cup, and the jacking piece can force the powder cup to move up and down; the powder cup and coffee powder in the powder cup can be jacked up, a user can conveniently take away the powder cup, and the powder cup can be directly installed in a coffee machine to make coffee.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bean grinder field, concretely relates to a portable bean grinder. BACKGROUND

[0002] Coffee beans must be ground into powder before brewing, and a bean grinder is a tool for grinding coffee beans into powder. A portable bean grinder is provided, which includes a top shell and a bottom shell fixed to each other and arranged vertically, a main body arranged in the top shell and the bottom shell, the main body including a motor, an outer cutter disc and an inner cutter disc, a detachable powder bin fixed to the bottom opening of the bottom shell, and a detachable top cover fixed to the top opening of the top shell. Coffee beans are ground into powder by the interaction of the outer cutter disc and the inner cutter disc and then fall into the powder bin. Since the powder bin is only used to hold powder, the coffee powder in the powder bin needs to be poured into a powder cup with brewing function when brewing coffee. Therefore, the user needs to prepare a powder cup and pour the coffee powder, which is inconvenient for brewing. Moreover, the coffee powder is easy to spill during the pouring process, causing waste. SUMMARY

[0003] The utility model aims to provide a portable bean grinder which is convenient for taking out coffee powder and directly brewing coffee.

[0004] To achieve the above-mentioned purpose, the utility model provides a portable bean grinder, which includes a top cover, a main body and a lower cover, the main body includes a shell and a bean grinding assembly arranged in the shell, the top cover and the lower cover are detachably connected to the upper and lower ends of the shell respectively, the portable bean grinder further includes a powder cup and a lifting piece, the powder cup is detachably arranged in the lower cover, the powder cup is provided with a plurality of liquid outlet holes, and the lifting piece is arranged between the lower cover and the powder cup and can force the powder cup to move up and down.

[0005] As can be seen from the above scheme, the powder cup is arranged to hold the ground coffee powder, the powder cup is provided with liquid outlet holes and can be directly installed in a coffee machine for brewing coffee. Compared with the prior art, the user does not need to prepare an additional powder cup or pour out the coffee powder, which has the advantages of simple operation and convenience. The lifting piece is arranged to lift the powder cup, which is convenient for the user to easily take out the coffee powder together with the powder cup.

[0006] Further, the portable bean grinder further includes a mounting ring connected to the lower cover, the lower cover is detachably connected to the shell through the mounting ring, the lifting piece is movably connected to the lower cover and the mounting ring, the lower cover can rotate relative to the mounting ring about its own axis, and the lifting piece and the powder cup are forced to move up and down relative to the mounting ring.

[0007] As can be seen from the above scheme, the user first detaches the mounting ring and the lower cover from the shell, holds the mounting ring with one hand and rotates the lower cover with the other hand to lift the lifting piece and the powder cup. The structure is simple and the operation is convenient.

[0008] Further, the inner circumferential wall of the lower cover is provided with a first sliding part; the outer circumferential wall of the jacking member is provided with a second sliding part, the first sliding part or the second sliding part extends upward along the circumference of the lower cover or the jacking member, and the first sliding part and the second sliding part are in concave-convex cooperation and can slide relative to each other.

[0009] From the above scheme, it can be seen that through the above arrangement, the jacking member is forced to move up and down through the rotational movement of the lower cover.

[0010] Further, the first sliding part is provided as a convex part, and the second sliding part is provided as a sliding groove, or the first sliding part is provided as a sliding groove, and the second sliding part is provided as a convex part.

[0011] Further, the inner circumferential wall of the mounting ring is provided with a first guide part extending along the axial direction of the mounting ring; the outer circumferential wall of the jacking member is provided with a second guide part in concave-convex cooperation with the first guide part and capable of sliding relative to the first guide part.

[0012] From the above scheme, it can be seen that through the above arrangement, the jacking member is limited and guided to only move up and down, and will not follow the rotation of the lower cover.

[0013] Further, the first guide part is provided as a convex part, and the second guide part is provided as a groove, or the first guide part is provided as a groove, and the second guide part is provided as a convex part.

[0014] Further, a rotating connection structure is arranged between the mounting ring and the lower cover, the rotating connection structure includes an annular groove and a clamping block, one of the annular groove and the clamping block is arranged on the mounting ring, and the other is arranged on the lower cover, the clamping block is embedded in the annular groove and can slide in the annular groove.

[0015] From the above scheme, it can be seen that through the above arrangement, the lower cover cannot be easily separated from the mounting ring, and the lower cover can rotate relative to the mounting ring.

[0016] Further, the portable coffee bean grinder further comprises a powder blocking ring, the powder blocking ring is detachably arranged on the powder cup, and the powder blocking ring is provided with a powder guiding channel corresponding to and communicating with the cup opening of the powder cup.

[0017] From the above scheme, it can be seen that through the above arrangement, it is convenient to move the ground coffee powder to the powder cup, and to avoid the coffee powder falling outside the powder cup or on the cup rim.

[0018] Further, the inner diameter of the powder guiding channel gradually narrows from the upper part to the lower part.

[0019] Further, the upper cover is also detachably connected with the powder cup; the upper cover protrudes downward and is provided with a powder pressing part which can be inserted into the powder cup.

[0020] From the above scheme, it can be seen that through the above setting, when the upper cover is separated from the shell, the coffee bean shell enters from above the shell, and when the coffee bean grinding is completed, the powder in the powder cup is compacted by the powder pressing part of the upper cover. Not only can the fluffy coffee powder be prevented from falling around during the removal or transfer of the powder cup, but the upper cover can also serve as a compacting tool. The compacted coffee powder can be directly placed in the coffee machine for brewing to obtain a better taste. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural diagram of an embodiment of the present utility model.

[0022] Figure 2 is an exploded view of an embodiment of the present utility model.

[0023] Figure 3 is Figure 2 an enlarged view of part A in FIG.

[0024] Figure 4 is a sectional view of an embodiment of the present utility model.

[0025] Figure 5 is a structural diagram of a lower cover assembly in an embodiment of the present utility model.

[0026] Figure 6 is an exploded view of a lower cover assembly in an embodiment of the present utility model.

[0027] Figure 7 is Figure 6 an enlarged view of part B in FIG.

[0028] Figure 8 is an exploded view of a lower cover and a mounting ring in an embodiment of the present utility model.

[0029] Figure 9 is a sectional view when the upper cover compacts coffee powder in an embodiment of the present utility model.

[0030] The present utility model will be further described below in conjunction with the drawings and embodiments. DETAILED DESCRIPTION

[0031] Referring to Figures 1 to 4 The portable bean grinder provided by the present embodiment can be used to grind various beans, and is preferably used to grind coffee beans.

[0032] The portable bean grinder comprises an upper cover 1, a main body 2, and a lower cover assembly.

[0033] The main body 2 comprises a casing 21 and a grinding assembly 22 arranged in the casing 21. The casing 21 is provided with a containing cavity 211 and a grinding cavity 212 in communication with each other, and the containing cavity 211 is used for containing coffee beans. The grinding assembly 22 comprises a rotary driving device 221, a rotary shaft 222, an inner cutter disc 223 and an outer cutter disc 224. The inner cutter disc 223 is connected to the rotary shaft 222, and the rotary driving device 221 drives the inner cutter disc 223 to rotate around the rotary shaft 222 through the rotary shaft 222. The outer cutter disc 224 is fixedly connected in the grinding cavity 212, and the inner cutter disc 223 is rotatably arranged in the outer cutter disc 224. A grinding channel is formed between the inner cutter disc 223 and the outer cutter disc 224. The coffee beans fall into the grinding cavity 212 and then enter the grinding channel, and are ground and crushed under the action of the inner cutter disc 223 and the outer cutter disc 224.

[0034] The upper cover 1 and the lower cover assembly are detachably connected to the upper and lower ends of the casing 21, respectively. The upper cover 1 covers the entrance of the containing cavity 211.

[0035] The lower cover assembly comprises a mounting ring 4, a lower cover 3, a lifting piece 5 and a powder cup 6. The mounting ring 4 is connected to the lower cover 3, and the lower cover 3 is detachably connected to the casing 21 through the mounting ring 4. The powder cup 6 is detachably arranged in the lower cover 3, and the powder cup 6 is arranged in correspondence with the grinding channel. The powder cup 6 is used for containing coffee powder. The lifting piece 5 is arranged between the lower cover 3 and the powder cup 6, and the lifting piece 5 can force the powder cup 6 to move up and down to lift the powder cup 6, so as to facilitate the user to take away the powder cup 6 and the coffee powder in the powder cup 6. The bottom wall of the powder cup 6 is provided with a plurality of liquid outlet holes. The diameter of the liquid outlet holes is small, and the coffee powder cannot fall off from the liquid outlet holes.

[0036] The powder cup 6 of the embodiment is preferably a stainless steel powder cup with a diameter of 52 mm. The powder cup 6 can be directly installed in the coffee machine, which is convenient for the user to grind coffee and then brew coffee. During the brewing process, the coffee powder does not need to be transferred to an additional container.

[0037] Referring to Figures 5 to 8 , the lifting piece 5 is movably connected to the lower cover 3 and the mounting ring 4. The lower cover 3 can rotate around its own axis relative to the mounting ring 4, thereby forcing the lifting piece 5 and the powder cup 6 to move up and down relative to the mounting ring 4. Specifically:

[0038] The inner circumferential wall of the lower cover 3 is provided with a plurality of first sliding portions 31. In the embodiment, four first sliding portions 31 are taken as an example, which are arranged uniformly along the circumference of the lower cover 3.

[0039] The outer circumferential wall of the lifting piece 5 is provided with a plurality of second sliding portions 51. The number of the second sliding portions 51 is equal to that of the first sliding portions 31, and the second sliding portions 51 are arranged in one-to-one correspondence with the first sliding portions 31. The first sliding portions 31 or the second sliding portions 51 extend upwardly along the circumference of the lower cover 3 or the lifting piece 5. The first sliding portions 31 and the second sliding portions 51 are in concave-convex cooperation and can slide relative to each other.

[0040] In an embodiment, the first sliding part 31 is a protrusion arranged on the upper portion of the lower cover 3, preferably near the mounting ring 4; and the second sliding part 51 is a chute extending upward along the circumference of the jacking member 5, the lower portion of the chute is provided with an entrance, and the upper portion of the chute is provided with a supporting portion 511. When the protrusion moves from the lower portion of the chute to the supporting portion 511, the supporting portion 511 can limit the linear falling of the protrusion, so that the powder cup 6 jacked up by the jacking member 5 can be paused at this position, facilitating the user to take away the powder cup 6.

[0041] In order to reduce the friction between the protrusion and the chute, the protrusion can be a circular protrusion column, which is in linear contact with the chute wall.

[0042] In another embodiment, the first sliding part is a chute extending upward along the circumference of the lower cover, and the second sliding part is a protrusion. The structures of the chute and the protrusion are the same as those of the chute and the protrusion in the previous embodiment, and will not be described here.

[0043] Referring to Figure 6 and Figure 7 In order to realize the up-down movement of the jacking member 5, the inner circumferential wall of the mounting ring 4 is provided with a plurality of first guide parts 41, and four first guide parts 41 are arranged in the embodiment, which are uniformly arranged along the circumference of the mounting ring 4 and extend along the axis of the mounting ring 4.

[0044] The outer circumferential wall of the jacking member 5 is provided with a plurality of second guide parts 52, the number of the second guide parts 52 is equal to that of the first guide parts 41, and the second guide parts 52 are arranged in one-to-one correspondence with the first guide parts 41. Along the circumference of the jacking member 5, the four second guide parts 52 are arranged in a spaced manner with the four second sliding parts 51.

[0045] The second guide part 52 and the first guide part 41 are in concave-convex cooperation and can slide relative to each other. Specifically,

[0046] In an embodiment, the first guide part 41 is a protrusion, and the second guide part 52 is a groove extending along the axis of the jacking member 5. The protrusion is embedded in the groove and can slide relative to the groove in the extension direction of the groove. The cross-sectional shape of the protrusion can be matched with the cross-sectional shape of the groove, and in the embodiment, the cross-section of the protrusion is trapezoidal, and the cross-section of the groove is rectangular.

[0047] In another embodiment, the first guide part is a groove extending along the axis of the mounting ring. The second guide part is a protrusion embedded in the groove and can slide relative to the groove in the extension direction of the groove. The cross-sectional shape of the protrusion can be matched with the cross-sectional shape of the groove, and in the embodiment, the cross-section of the protrusion is trapezoidal, and the cross-section of the groove is rectangular.

[0048] Referring toFigure 8 A rotating connection structure is arranged between the mounting ring 4 and the lower cover 3, and the rotating connection structure comprises an annular groove 42 and a plurality of clamping blocks 32. One of the annular groove 42 and the clamping block 32 is arranged on the mounting ring 4, and the other is arranged on the lower cover 3. The clamping block 32 is embedded in the annular groove 42 and can slide in the annular groove 42.

[0049] In this embodiment, the annular groove 42 is arranged on the mounting ring 4, and the clamping block 32 is arranged on the inner circumferential wall of the lower cover 3. Four clamping blocks 32 are arranged uniformly along the circumference of the lower cover 3, and the clamping block 32 is arranged above the first sliding part 31. On the axis of the lower cover 3, the clamping block 32 and the first sliding part 31 can be arranged in correspondence with each other or can be arranged in a staggered manner, which is not limited here.

[0050] In order to facilitate the clamping block 32 to be embedded in the annular groove 42, the upper part of the clamping block 32 is provided with a guide surface, which is inclined in the up-down direction. The lower part of the clamping block 32 is provided with a stop surface, which is parallel to the lower groove wall of the annular groove 42, so as to limit the separation of the clamping block 32 and the annular groove 42.

[0051] The lower part of the mounting ring 4 is also provided with a plurality of plug-in parts 43, which are arranged uniformly along the circumference of the mounting ring 4. The plug-in part 43 protrudes downward from the bottom wall of the mounting ring 4 and is used for plug-in to the inner side of the lower cover 3. The first guide part 41 can be arranged on the inner side wall of the plug-in part 43, so as to facilitate the extension length of the first guide part 41 to be long enough.

[0052] In combination with Figure 5 , Figure 6 and Figure 9 , the lower cover assembly further comprises a powder blocking ring 7 which is detachably arranged on the powder cup 6. The powder blocking ring 7 is internally provided with a powder guiding channel 71 which is correspondingly arranged and communicated with the cup opening of the powder cup 6. The inner diameter of the powder guiding channel 71 gradually narrows from the upper part to the lower part thereof, so as to guide the coffee powder into the powder cup 6 and avoid the coffee powder falling on the outside of the powder cup 6 or the cup rim. Specifically:

[0053] The inner part of the mounting ring 4 is provided with a first support part 44 and a second support part 45, and the first support part 44 is arranged below the second support part 45. The upper part of the jacking piece 5 is provided with an annular flange 53 which protrudes outwardly from the outer circumferential wall of the jacking piece 5. The annular flange 53 abuts against the first support part 44. The upper part of the powder cup 6 is outwardly provided with a cup rim 61 which abuts against the annular flange 53.

[0054] The powder-blocking ring 7 is detachably disposed within the mounting ring 4, and its bottom wall abuts against the second support portion 45 and / or the rim 61 of the powder cup 6. The bottom wall of the powder-blocking ring 7 has an upwardly protruding annular portion, and a powder guiding channel 71 is disposed within this annular portion. The lower inner diameter of the powder guiding channel 71 is equal to or slightly larger than the opening diameter of the powder cup 6. Axially, the top wall of the powder-blocking ring 7 is slightly lower than the top wall of the mounting ring 4, and the top wall of the powder-blocking ring 7 is also the top wall of the annular portion.

[0055] exist Figure 9 In the middle, the upper cover 1 can also be detachably connected to the lower cover assembly, that is, after grinding is completed, the upper cover 1 can be removed and detachably connected to the lower cover assembly.

[0056] The upper cover 1 includes a first cover body 11 and a second cover body 12 coaxially arranged, with the second cover body 12 located below the first cover body 11. The second cover body 12 has a downwardly protruding powder pressing part 121, the diameter of which is smaller than the inner diameter of the housing 21 and slightly smaller than the inner diameter of the powder cup 6. The bottom wall of the powder pressing part 121 has a powder pressing surface, which is arranged along the axial direction perpendicular to the upper cover 1.

[0057] When the top cover 1 is connected to the housing 21, the powder pressing part 121 is embedded in the housing 21.

[0058] When the upper cover 1 is connected to the lower cover assembly, the tamping part 121 passes through the powder guiding channel 71 of the powder blocking ring 7 and is inserted into the powder cup 6. The tamping surface can directly contact the coffee powder in the powder cup 6 to compact the coffee powder downwards.

[0059] In order to control the depth of the powder pressing part 121 inserted into the powder cup 6, a first stop part 122 is provided on the second cover 12. The first stop part 122 is located above the powder pressing part 121 and can abut against the top wall of the powder blocking ring 7. Or, a second stop part 111 is provided on the first cover 11. The second stop part 111 is located above the first stop part 122 and can abut against the top wall of the mounting ring 4.

[0060] Combination Figure 3 and Figure 7 The mounting ring 4 can be detachably connected to the lower part of the housing 21, including but not limited to threaded connection or snap-fit ​​connection, with the latter being preferred in this embodiment. Specifically:

[0061] The lower part of the housing 21 is provided with two latches 213, which are evenly spaced along the circumference of the housing 21. The latches 213 extend along the circumference of the housing 21, and are provided with arc-shaped protrusions 2131, which protrude from the upper surface of the latches 213.

[0062] The inner peripheral wall of the mounting ring 4 is provided with two clamping grooves 46, which are uniformly arranged along the circumference of the mounting ring 4, and the buckle 213 is clamped with the clamping groove 46. The clamping groove 46 is provided in the shape of “L”, which includes a vertical groove part 461 and a horizontal groove part 462. The opening of the clamping groove 46 is arranged on the first end of the vertical groove part 461, and the horizontal groove part 462 is communicatively arranged on the second end of the vertical groove part 461. An arc-shaped recess 463 is arranged on the upper side groove wall of the horizontal groove part 462, which is communicated with the horizontal groove part 462.

[0063] When the lower cover assembly is installed, the buckle 213 is first embedded in the vertical groove part 461, and then the lower cover assembly is rotated so that the buckle 213 is relatively moved into the horizontal groove part 462. At this time, the arc-shaped convex part 2131 is embedded in the arc-shaped recess 463, which is beneficial to prevent the lower cover assembly from being accidentally reversed to cause separation.

[0064] When the lower cover assembly is disassembled, the lower cover assembly is first reversely rotated so that the buckle 213 is relatively moved from the horizontal groove part 462 to the vertical groove part 461, and then the lower cover assembly is axially moved to separate the two.

[0065] In combination with Figure 4 , Figure 6 and Figure 9 , the separated lower cover assembly contains relatively loose coffee powder, and the user can use the powder pressing part 121 of the upper cover 1 to compact the coffee powder.

[0066] After the coffee powder is compacted, the user can take away the powder blocking ring 7 and lift the powder cup 6. During the lifting of the powder cup 6, the user can hold the mounting ring 4 with one hand and rotate the lower cover 3 with the other hand, so that the first sliding part 31 and the second sliding part 51 are relatively slid, and then the lifting piece 5 and the powder cup 6 are lifted, at this time the user can take away the powder cup 6. Thereafter, the lower cover 3 is reversely rotated, so that the lifting of the lifting piece 5 is realized. If it needs to be ground again, the empty powder cup 6 can be replaced and placed in the lifting piece 5.

[0067] The powder blocking ring 7, the powder cup 6 and the lifting piece 5 of the embodiment can be separated from the mounting ring 4 and the lower cover 3, which is convenient for the user to clean the lower cover assembly.

[0068] As can be seen from the above, the powder cup 6 is arranged to receive the ground coffee powder, and the powder cup 6 is provided with a liquid outlet hole and can be directly installed in the coffee machine for brewing coffee. Compared with the prior art, the user does not need to prepare the powder cup 6 additionally, and does not need to pour out the coffee powder, which has the advantages of simple operation and convenience. The lifting piece 5 is arranged to lift the powder cup 6, which is convenient for the user to easily take away the coffee powder together with the powder cup 6.

[0069] Finally, it needs to be emphasized that the above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1.A portable coffee grinder, comprising a top cover, a main body and a bottom cover, the main body comprising a casing and a coffee grinding assembly arranged in the casing, the top cover and the bottom cover being detachably connected to the upper and lower ends of the casing respectively, characterized in that: the portable coffee grinder further comprises a powder cup and a lifting piece, the powder cup being detachably arranged in the bottom cover, the powder cup being provided with a plurality of liquid outlet holes, the lifting piece being arranged between the bottom cover and the powder cup, the lifting piece being capable of forcing the powder cup to move up and down. 2.The portable coffee grinder according to claim 1, characterized in that: the portable coffee grinder further comprises a mounting ring, the mounting ring being connected to the bottom cover, the bottom cover being detachably connected to the casing through the mounting ring; the lifting piece is movably connected to the bottom cover and the mounting ring, the bottom cover being capable of rotating about its own axis relative to the mounting ring, thereby forcing the lifting piece and the powder cup to move up and down relative to the mounting ring. 3.The portable coffee grinder according to claim 2, characterized in that: an inner circumferential wall of the bottom cover is provided with a first sliding part; an outer circumferential wall of the lifting piece is provided with a second sliding part, the first sliding part or the second sliding part extending upward along the circumferential direction of the bottom cover or the lifting piece, the first sliding part and the second sliding part being in concave-convex cooperation and capable of relative sliding. 4.The portable coffee grinder according to claim 3, characterized in that: the first sliding part is provided as a convex part, and the second sliding part is provided as a sliding groove, or the first sliding part is provided as a sliding groove, and the second sliding part is provided as a convex part. 5.The portable coffee grinder according to claim 2, characterized in that: an inner circumferential wall of the mounting ring is provided with a first guide part, the first guide part extending along the axial direction of the mounting ring; an outer circumferential wall of the lifting piece is provided with a second guide part, the second guide part being in concave-convex cooperation with the first guide part and capable of relative sliding. 6.The portable coffee grinder according to claim 5, characterized in that: the first guide part is provided as a convex part, and the second guide part is provided as a concave groove, or the first guide part is provided as a concave groove, and the second guide part is provided as a convex part. 7.The portable coffee grinder according to claim 2, characterized in that: a rotary connection structure is arranged between the mounting ring and the bottom cover, the rotary connection structure comprising an annular groove and a clamping block, one of the annular groove and the clamping block being arranged on the mounting ring, and the other being arranged on the bottom cover, the clamping block being embedded in the annular groove and capable of sliding in the annular groove. 8.The portable coffee grinder according to any one of claims 1 to 7, characterized in that: the portable coffee grinder further comprises a powder blocking ring, the powder blocking ring being detachably arranged on the powder cup, an inner part of the powder blocking ring being provided with a powder guiding channel, the powder guiding channel being correspondingly arranged and communicated with a cup opening of the powder cup. 9.The portable coffee grinder according to claim 8, characterized in that: an inner diameter of the powder guiding channel gradually narrows from its upper part to its lower part. 10.The portable coffee grinder according to any one of claims 1 to 7, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The upper cover is further detachably connected with the powder cup. The upper cover is downwardly protrudingly provided with a powder pressing portion which is insertable into the powder cup.

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