Powder scraper and coffee bean grinder

Abstract

The utility model relates to the technical field of coffee bean grinders, in particular to a powder scraper and a coffee bean grinder. The powder scraper comprises a base plate, at least one powder scraping blade and at least one evacuation module are arranged on the base plate, and the evacuation module is arranged below the base plate and used for being placed in a powder outlet channel so as to whip and disperse powder in the powder outlet channel when the evacuation module rotates along with the base plate. The coffee bean grinder comprises a lower tool apron, a rotating shaft arranged on the lower tool apron and the powder scraper connected with the rotating shaft, a powder outlet and a powder outlet channel communicated with the powder outlet are formed in the lower tool apron, the base plate is arranged above the powder outlet channel, and the evacuation module is arranged in the powder outlet channel. According to the powder scraper and the coffee bean grinder, the evacuation module in the powder scraper can effectively disperse powder in the powder outlet channel, blockage caused by accumulation of the powder in the powder outlet channel is avoided, use is convenient, and meanwhile powder outlet efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of coffee grinder technology, specifically a powder scraper and a coffee grinder. Background Technology

[0002] Coffee grinders are essential tools in the coffee-making process, quickly grinding coffee beans into powder for brewing. In existing coffee grinders, coffee beans are ground into powder in the grinding chamber. The powder falls from the grinding chamber into the outlet channel and then disperses out of the outlet. Due to the interaction of van der Waals forces, friction, and static electricity between the powder particles, the powder tends to accumulate in the outlet channel during its descent. If the accumulated powder is not dispersed in time, it can easily cause blockage, requiring the user to apply external force or use other tools to disperse the accumulated powder and allow it to fall. This is cumbersome and results in a poor user experience. Utility Model Content

[0003] The purpose of this invention is to provide a powder scraper and a coffee grinder to solve the problem that existing coffee grinders cannot disperse the powder accumulated in the powder outlet channel in time, causing the outlet channel to become blocked.

[0004] To solve the above problems, the present invention provides the following technical solution:

[0005] A powder scraper includes a substrate, on which at least one powder scraping blade and at least one dispersion module are provided. The dispersion module is disposed below the substrate and is used to be inserted into a powder outlet channel to agitate and disperse the powder in the powder outlet channel when the dispersion module rotates with the substrate.

[0006] In the powder scraper described above, the cross-sectional area of ​​the evacuation module gradually decreases from top to bottom.

[0007] As described above, in a powder scraper, several of the evacuation modules are arranged at circumferential intervals along the substrate.

[0008] As described above, the scraper blade has a scraping side, which is inclined from the upper end to the lower end of the scraper blade in the opposite direction of the rotation direction of the scraper blade, so as to push the powder below the scraping side when the scraper blade rotates with the substrate.

[0009] As described above, in a powder scraper, the powder scraping side slopes from the outer end to the inner end of the powder scraping blade in the opposite direction to the rotation direction of the powder scraping blade.

[0010] As described above, the scraper blade has a scraper bottom surface connected to the scraper side, and the scraper bottom surface slopes downward from the outer end to the inner end of the scraper blade.

[0011] As described above, in a powder scraper, the outer end of the powder scraping blade extends outward to protrude from the circumferential side of the substrate, and the inner end of the powder scraping blade extends inward to the powder outlet channel.

[0012] A coffee grinder includes a lower blade holder, a rotating shaft disposed on the lower blade holder, and a powder scraper as described above connected to the rotating shaft. The lower blade holder has a powder outlet and a powder outlet channel communicating with the powder outlet. A base plate is disposed above the powder outlet channel, and a dispersion module is disposed within the powder outlet channel.

[0013] As described above, in a coffee grinder, the lower blade holder has a downwardly sloping powder guiding surface extending from the outer end to the inner end of the lower blade holder. The powder guiding surface and the lower end face of the substrate form a powder guiding channel, which is connected to the powder dispensing channel. The powder scraper blade is disposed within the powder guiding channel.

[0014] The coffee grinder described above further includes a lower grinding wheel connected to the rotating shaft. The lower grinding wheel is disposed above the base plate. The lower grinding wheel is provided with a grinding wheel positioning part, and the base plate is provided with a base plate positioning part that cooperates with the grinding wheel positioning part.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present invention provides a powder scraper and a coffee grinder. The dispersion module in the powder scraper can effectively disperse the powder in the powder outlet channel, preventing the powder from accumulating and causing blockage. It does not require the user to apply external force or use other tools to disperse the accumulated powder, making it convenient to use and providing a good user experience. At the same time, it can speed up the speed at which the powder falls from the powder outlet channel, thereby improving the powder dispensing efficiency.

[0017] 2. The present invention provides a powder scraper and a coffee grinder. The powder scraper blades in the powder scraper can effectively push and press the powder below the side of the scraper. Under the pushing action of the side of the scraper, the powder is difficult to fly away and can quickly enter the powder outlet channel, resulting in high powder outlet efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a powder scraper according to an embodiment of the present utility model. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the structure of a powder scraper according to an embodiment of the present utility model. Figure 2 .

[0021] Figure 3 This is a partial structural diagram of a coffee grinder according to an embodiment of the present invention.

[0022] Figure 4 This is a cross-sectional view of a portion of the structure of a coffee grinder according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the lower blade holder of a coffee grinder according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the lower grinding wheel of a coffee grinder according to an embodiment of the present invention.

[0025] The corresponding numbers for the attached figures are as follows:

[0026] 11. Substrate; 12. Powder scraper blade; 121. Powder scraper side; 122. Powder scraper bottom; 13. Evacuation module; 14. Substrate positioning part; 2. Lower blade holder; 21. Powder outlet; 22. Powder outlet channel; 23. Powder guiding slope; 24. Powder guiding channel; 3. Rotary shaft; 4. Lower grinding wheel; 41. Grinding wheel positioning part. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see the appendix Figure 1 To be continued Figure 2 This embodiment provides a powder scraper, including a substrate 11. The substrate 11 has at least one powder scraping blade 12 and at least one dispersion module 13. The dispersion module 13 is located below the substrate 11 and is inserted into the powder outlet channel to agitate and disperse the powder in the channel as the dispersion module 13 rotates with the substrate 11. This powder scraper, through the dispersion module 13, effectively disperses the powder in the outlet channel during rotation with the substrate 11, preventing powder accumulation and blockage. It eliminates the need for external force or other tools to disperse accumulated powder, making it convenient and user-friendly. It also accelerates the powder's descent from the outlet channel, improving powder dispensing efficiency.

[0029] The evacuation module 13 can have various specific shapes. It can be cylindrical, prismatic, conical, pyramidal, frustum-shaped, tubular, or spiral. Furthermore, the length of the evacuation module 13 is matched to the length of the powder outlet channel.

[0030] Furthermore, preferably, the cross-sectional area of ​​the evacuation module 13 gradually decreases from top to bottom, which is conducive to the rapid falling of powder.

[0031] Furthermore, several of the dispersion modules 13 are arranged at intervals along the circumference of the substrate 11. The combined action of the several dispersion modules 13 can further improve the speed of powder dispersion and falling.

[0032] In some embodiments, the scraper blade 12 is perpendicular to the substrate 11. When the scraper blade 12 rotates with the substrate 11, since the scraper blade 12 only has a lateral pushing effect on the powder and does not have a downward pushing effect, the powder is easy to fly when the scraper blade 12 rotates quickly. The flying powder falls slowly, resulting in low powder output efficiency.

[0033] Furthermore, to prevent powder from flying away, in some embodiments, the scraping blade 12 is provided with a scraping side 121. The scraping side 121 is inclined in the opposite direction to the rotation direction of the scraping blade 12 from its upper end to its lower end, so as to push the powder below the scraping side 121 when the scraping blade 12 rotates with the substrate 11. When the scraping blade 12 rotates with the substrate 11, the scraping side 121 can push the powder below it. Under the pushing action of the scraping side 121, the powder is difficult to fly away and can quickly enter the powder outlet channel, resulting in high powder outlet efficiency.

[0034] Furthermore, the scraping side 121 is inclined in the opposite direction to the rotation direction of the scraping blade 12 from the outer end to the inner end. Since the scraping side 121 is inclined in the opposite direction to the rotation direction of the scraping blade 12 from the outer end to the inner end, when the scraping blade 12 rotates with the substrate 11, the scraping side 121 can push the powder, reduce powder flying, and at the same time, it can make the powder move from the outer end to the inner end of the scraping blade 12, so as to promote the powder to enter the powder outlet channel faster and more orderly.

[0035] Furthermore, the scraper blade 12 is provided with a scraper bottom surface 122 connected to the scraper side surface 121. The scraper bottom surface 122 slopes downward from the outer end to the inner end of the scraper blade 12, which helps to guide the powder from the outer end of the scraper blade 12 to the inner end of the scraper blade 12, so that it falls from the powder outlet channel.

[0036] Furthermore, the outer end of the powder scraper blade 12 extends outward to protrude from the circumferential side of the substrate 11, and the inner end of the powder scraper blade 12 extends inward to the powder outlet channel, which is beneficial for guiding and pressing the powder into the powder outlet channel.

[0037] In some embodiments, the inner end of the powder scraper blade 12 extends inward to the powder outlet channel and is connected to the evacuation module 13. In some embodiments, the inner end of the powder scraper blade 12 extends inward to the powder outlet channel but is not connected to the evacuation module 13. The powder scraper blade 12 and the evacuation module 13 can be selected and configured according to actual needs.

[0038] Preferably, the powder scraper is made of die-cast aluminum, which provides greater strength and reliability.

[0039] Please see the appendix Figure 1 To be continued Figure 6 This embodiment also provides a coffee grinder, including a lower blade holder 2, a rotating shaft 3 disposed on the lower blade holder 2, and a powder scraper connected to the rotating shaft 3. The lower blade holder 2 is provided with a powder outlet 21 and a powder outlet channel 22 communicating with the powder outlet 21. A base plate 11 is disposed above the powder outlet channel 22, and a dispersion module 13 is disposed within the powder outlet channel 22. The powder scraper includes a base plate 11, on which at least one powder scraping blade 12 and at least one dispersion module 13 are disposed. The dispersion module 13 is disposed below the base plate 11 and is used to be inserted into the powder outlet channel to agitate and disperse the powder within the powder outlet channel when the dispersion module 13 rotates with the base plate 11. The coffee grinder provided in this embodiment can effectively disperse the powder in the powder outlet channel through the dispersion module 13 in the powder scraper, avoiding the accumulation of powder in the powder outlet channel and causing blockage. It does not require the user to apply external force or use other tools to disperse the accumulated powder, making it convenient to use and providing a good user experience. At the same time, it can speed up the speed at which the powder falls from the powder outlet channel and improve the powder dispensing efficiency.

[0040] Furthermore, the lower blade holder 2 is provided with a powder guiding slope 23 that slopes downward from the outer end to the inner end of the lower blade holder 2. The powder guiding slope 23 and the lower end face of the substrate 11 form a powder guiding channel 24. The powder guiding channel 24 is connected to the powder outlet channel 22, and the powder scraper blade 12 is disposed in the powder guiding channel 24. The powder guiding channel 24 is connected to the grinding chamber. After the powder falls from the grinding chamber into the powder guiding channel 24, it enters the powder outlet channel 22 from the powder guiding channel 24 under the guiding action of the powder guiding slope 23 and the pushing action of the powder scraper blade 12. The powder is dispersed under the stirring and dispersing action of the dispersion module 13 and falls quickly from the powder outlet.

[0041] Furthermore, the coffee grinder of this embodiment also includes a lower grinding wheel 4 connected to the rotating shaft 3. The lower grinding wheel 4 is disposed above the base plate 11, and the lower grinding wheel 4 is provided with a grinding wheel positioning part 41. The base plate 11 is provided with a base plate positioning part 14 that cooperates with the grinding wheel positioning part 41. One of the grinding wheel positioning part 41 and the base plate positioning part 14 is a protrusion, and the other of the grinding wheel positioning part 41 and the base plate positioning part 14 is a groove. The positioning connection between the lower grinding wheel 4 and the base plate 11 is achieved through the cooperation of the protrusion and the groove, which has a simple structure and is easy to install. The lower grinding wheel 4 is located in the grinding chamber, and it cooperates with the upper grinding wheel (not shown in the figure) to grind coffee beans.

[0042] The evacuation module 13 can have various specific shapes. It can be cylindrical, prismatic, conical, pyramidal, frustum-shaped, tubular, or spiral. Furthermore, the length of the evacuation module 13 is matched to the length of the powder outlet channel.

[0043] Furthermore, preferably, the cross-sectional area of ​​the evacuation module 13 gradually decreases from top to bottom, which is conducive to the rapid falling of powder.

[0044] Furthermore, several of the dispersion modules 13 are arranged at intervals along the circumference of the substrate 11. The combined action of the several dispersion modules 13 can further improve the speed of powder dispersion and falling.

[0045] Furthermore, to prevent powder from flying away, the scraping blade 12 is provided with a scraping side 121. The scraping side 121 is inclined in the opposite direction to the rotation direction of the scraping blade 12 from the upper end to the lower end, so as to push the powder below the scraping side 121 when the scraping blade 12 rotates with the substrate 11. When the scraping blade 12 rotates with the substrate 11, the scraping side 121 can push the powder between the scraping side 121 and the powder guiding slope 23. Under the pushing action of the scraping side 121, the powder is difficult to fly away and can quickly enter the powder outlet channel, resulting in high powder outlet efficiency.

[0046] Furthermore, the scraping side 121 is inclined in the opposite direction to the rotation direction of the scraping blade 12 from the outer end to the inner end. Since the scraping side 121 is inclined in the opposite direction to the rotation direction of the scraping blade 12 from the outer end to the inner end, when the scraping blade 12 rotates with the substrate 11, the scraping side 121 can push the powder, reduce powder flying, and at the same time, it can make the powder move from the outer end to the inner end of the scraping blade 12, so as to promote the powder to enter the powder outlet channel faster and more orderly.

[0047] Furthermore, the scraping blade 12 is provided with a scraping bottom surface 122 connected to the scraping side surface 121. The scraping bottom surface 122 slopes downward from the outer end to the inner end of the scraping blade 12, which facilitates guiding the powder from the outer end of the scraping blade 12 to the inner end of the scraping blade 12, so that it falls from the powder outlet channel. During assembly, the scraping bottom surface 122 on the scraping blade 12 is in contact with the powder guiding inclined surface 23 on the lower blade holder 2.

[0048] Furthermore, the outer end of the powder scraper blade 12 extends outward to protrude from the circumferential side of the substrate 11, and the inner end of the powder scraper blade 12 extends inward to the powder outlet channel, which is beneficial for guiding and pressing the powder into the powder outlet channel.

[0049] In some embodiments, the inner end of the powder scraper blade 12 extends inward to the powder outlet channel and is connected to the evacuation module 13. In some embodiments, the inner end of the powder scraper blade 12 extends inward to the powder outlet channel but is not connected to the evacuation module 13. The powder scraper blade 12 and the evacuation module 13 can be selected and configured according to actual needs.

[0050] Preferably, the powder scraper is made of die-cast aluminum, which provides greater strength and reliability.

[0051] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A doctor blade, characterized in that, The device comprises a base plate (11) provided with at least one powder scraping blade (12) and at least one dispersing module (13) arranged below the base plate (11) and inserted into a powder outlet channel to stir and disperse the powder in the powder outlet channel when the dispersing module (13) rotates with the base plate (11).

2. A doctor blade according to claim 1, wherein The cross-sectional area of the dispersing module (13) gradually decreases from top to bottom.

3. A doctor blade according to claim 1, wherein A plurality of dispersing modules (13) are arranged along the circumference of the base plate (11) at intervals.

4. A doctor blade according to claim 1, wherein The powder scraping blade (12) is provided with a powder scraping side (121) which is inclined from the upper end to the lower end of the powder scraping blade (12) in the opposite direction of the rotation direction of the powder scraping blade (12) to push the powder below the powder scraping side (121) when the powder scraping blade (12) rotates with the base plate (11).

5. A doctor blade according to claim 4, wherein The powder scraping side (121) is inclined from the outer end to the inner end of the powder scraping blade (12) in the opposite direction of the rotation direction of the powder scraping blade (12).

6. A doctor blade according to claim 4, wherein The powder scraping blade (12) is provided with a powder scraping bottom (122) connected to the powder scraping side (121), which is inclined downward from the outer end to the inner end of the powder scraping blade (12).

7. A doctor blade according to any one of claims 1 to 6, wherein The outer end of the powder scraping blade (12) extends outwardly to protrude from the circumferential side of the base plate (11), and the inner end of the powder scraping blade (12) extends inwardly into the powder outlet channel.

8. A coffee grinder, characterized in that The device comprises a lower knife seat (2), a rotating shaft (3) arranged on the lower knife seat (2), and a powder scraper according to any one of claims 1-7 connected to the rotating shaft (3), wherein the lower knife seat (2) is provided with a powder outlet (21) and a powder outlet channel (22) communicating with the powder outlet (21), the base plate (11) is arranged above the powder outlet channel (22), and the dispersing module (13) is arranged in the powder outlet channel (22).

9. A coffee grinder as claimed in claim 8, characterized in that The lower knife seat (2) is provided with a powder guiding inclined surface (23) inclined downward from the outer end to the inner end of the lower knife seat (2), the powder guiding inclined surface (23) and the lower end surface of the base plate (11) form a powder guiding channel (24), the powder guiding channel (24) communicates with the powder outlet channel (22), and the powder scraping blade (12) is arranged in the powder guiding channel (24).

10. A coffee grinder as claimed in claim 8, characterized in that The device further comprises a lower grinding wheel (4) connected to the rotating shaft (3), the lower grinding wheel (4) is arranged above the base plate (11), the lower grinding wheel (4) is provided with a grinding wheel positioning portion (41), and the base plate (11) is provided with a base plate positioning portion (14) matched with the grinding wheel positioning portion (41).

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