阅读说明：本技术 一种磨粉器 (Flour mill ) 是由 邓财科 陈宝其 于 2021-09-07 设计创作，主要内容包括：本发明公开了一种磨粉器,包括磨粉器壳体、多组研磨组件、多个输出齿轮、输入齿轮、多组齿轮组及切换辅助件,磨粉器壳体内形成有动力腔室和多个研磨腔室,多组研磨组件分别设于多个研磨腔室内,多个输出齿轮分别连接于多组研磨组件,齿轮组包括间隔设置的第一齿轮和第二齿轮,多组齿轮组的第一齿轮分别与多个输出齿轮啮合连接,多组齿轮组的第二齿轮均与输入齿轮啮合连接,第一齿轮和/或第二齿轮可沿轴向活动使第一齿轮和第二齿轮接合或分离,通过切换辅助件的转动可选择地推动其中一组齿轮组的第一齿轮和/或第二齿轮沿轴向活动。采用切换辅助件以及齿轮组构成的离合结构,通过转动实现离合结构的闭合与分离,操作方便,耐用度高。(The invention discloses a powder grinder which comprises a powder grinder shell, a plurality of groups of grinding assemblies, a plurality of output gears, an input gear, a plurality of groups of gear sets and a switching auxiliary part, wherein a power chamber and a plurality of grinding chambers are formed in the powder grinder shell, the plurality of groups of grinding assemblies are respectively arranged in the plurality of grinding chambers, the plurality of output gears are respectively connected with the plurality of groups of grinding assemblies, each gear set comprises a first gear and a second gear which are arranged at intervals, the first gears of the plurality of groups of gear sets are respectively connected with the plurality of output gears in a meshed mode, the second gears of the plurality of groups of gear sets are respectively connected with the input gear in a meshed mode, the first gears and/or the second gears can move axially to enable the first gears and the second gears to be connected or separated, and the first gears and/or the second gears of one group of gear sets can be selectively pushed to move axially through the rotation of the switching auxiliary part. Adopt the separation and reunion structure that switching auxiliary member and gear train constitute, realize the closure and the separation of separation and reunion structure through rotating, convenient operation, the incorruptibility is high.)

1. A pulverizer, comprising:

a pulverizer housing (1) in which a power chamber (a) and a plurality of grinding chambers (b) are formed;

a plurality of groups of grinding assemblies (2) which are respectively arranged in the grinding chambers (b);

a plurality of output gears (3) arranged in the power chamber (a) and respectively connected with the plurality of groups of grinding assemblies (2);

an input gear (4) disposed within the power chamber (a);

a plurality of sets of gear sets (5) arranged in the power chamber (a), wherein each set of gear set (5) comprises a first gear (51) and a second gear (52) which are arranged at intervals, the first gears (51) of the plurality of sets of gear sets (5) are respectively meshed with the plurality of output gears (3), the second gears (52) of the plurality of sets of gear sets (5) are respectively meshed with the input gears (4), and the first gears (51) and/or the second gears (52) can move axially to enable the first gears (51) and the second gears (52) to be connected or separated;

the switching auxiliary piece (6) is rotatably arranged in the power chamber (a), and the first gear (51) and/or the second gear (52) of one group of gear sets (5) are selectively pushed to move axially by the rotation of the switching auxiliary piece (6).

2. The pulverizer of claim 1, wherein: the end face, facing the second gear (52), of the first gear (51) is provided with first ratchet teeth (511), the end face, facing the first gear (51), of the second gear (52) is provided with second ratchet teeth (521), and the first gear (51) is in transmission connection with the second gear (52) when the first ratchet teeth (511) are meshed with the second ratchet teeth (521).

3. The pulverizer of claim 1, wherein: the gear set (5) further comprises an elastic resetting piece (54), wherein the elastic resetting piece (54) is arranged between the first gear (51) and the second gear (52) and is used for driving the first gear (51) and/or the second gear (52) to reset.

4. The pulverizer of claim 1, wherein: the switching auxiliary part (6) is provided with an ejecting part (61), and the switching auxiliary part (6) is used for rotating until the ejecting part (61) faces the first gear (51) and/or the second gear (52) of one group of the gear sets (5), so that the ejecting part (61) pushes the first gear (51) and/or the second gear (52) of one group of the gear sets (5) to move axially.

5. The pulverizer of claim 4, wherein: the switching auxiliary piece (6) is sheet-shaped, and one side of the switching auxiliary piece (6) facing the gear set (5) is convex towards the gear set (5) to form the pushing part (61).

6. The pulverizer of claim 4, wherein: the powder grinding device (10) further comprises a first gear shaft (31) used for arranging the output gear (3), a second gear shaft (41) used for arranging the input gear (4) and a third gear shaft (53) used for arranging the first gear (51) and the second gear (52), the switching auxiliary part (6) is rotatably arranged on the second gear shaft (41), and an empty avoiding groove (62) used for avoiding the first gear shaft (31) and/or the third gear shaft (53) is formed in the switching auxiliary part (6).

7. The pulverizer of claim 4, wherein: crocus ware (10) are still including locating switching knob (7) on crocus ware casing (1), switching knob (7) connect in switch auxiliary member (6), be used for driving under the effect of external force switch auxiliary member (6) for crocus ware casing (1) rotates.

8. The pulverizer of claim 7, wherein: switch knob (7) and be equipped with draw-in groove (71), switch auxiliary member (6) outwards extend form be used for with fixture block (63) of draw-in groove (71) joint.

9. The pulverizer of claim 1, wherein: be equipped with on crocus ware casing (1) respectively communicate in a plurality of feed opening (131) of grinding cavity (b), crocus ware casing (1) still includes a plurality of sealed lids (132), and is a plurality of sealed lid (132) are used for opening respectively or close a plurality of feed opening (131).

10. The mill of any one of claims 1 to 9, wherein: the pulverizer shell (1) comprises a bottom shell (11), a grinding cavity shell (12), a middle seat shell (13), a power cavity shell (14) and a top shell (15) which are sequentially arranged from bottom to top;

a plurality of grinding chambers (b) are formed by enclosing among the bottom shell (11), the grinding cavity shell (12) and the middle base shell (13);

the middle seat shell (13), the power cavity shell (14) and the top shell (15) are enclosed to form the power cavity (a).

Technical Field

The invention relates to the technical field of grinding, in particular to a grinder.

Background

The existing pulverizers only have a single grinding assembly and a single grinding chamber, and can not switch different grinding assemblies to grind different spices. For this reason, patent application No. CN201010573174.9 discloses a multi-purpose condiment mill, be equipped with a plurality of condiment separating box and a plurality of grinder on it, can realize the grinding of multiple condiment, when main axis of rotation rotates, make only a grinder action through the clutch, other grinders keep motionless, the inner edge of function regulation circle is the cam ring with the U type side in close contact with of U type support, when the cam ring is just to the time with the separation and reunion support, U type support moves outward, separation and reunion support and driven gear fall down, the clutch is closed, this pivot rotates and drives corresponding grinding miller rotation, other clutches separation. However, according to the technical scheme, the clutch is closed and separated through the inclined plane matching of the clutch bracket and the U-shaped support, the inclined plane matching is seriously worn after being used for a period of time, and the clutch is easy to slip to cause the clutch to lose efficacy.

Disclosure of Invention

In order to overcome at least one defect in the prior art, the invention provides a powder grinder, which aims to solve the problems that the clutch structure of the existing powder grinder is not enough in durability and is easy to slip and lose efficacy after being used for a period of time.

The invention discloses a powder grinding device for solving the technical scheme, which comprises:

a pulverizer housing having a power chamber and a plurality of grinding chambers formed therein;

the grinding assemblies are respectively arranged in the grinding chambers;

the output gears are arranged in the power chamber and are respectively connected with the plurality of groups of grinding assemblies;

the input gear is arranged in the power cavity;

the gear sets are arranged in the power cavity and comprise first gears and second gears which are arranged at intervals, the first gears of the gear sets are respectively meshed with the output gears, the second gears of the gear sets are respectively meshed with the input gears, and the first gears and/or the second gears can move axially to enable the first gears and the second gears to be connected or separated;

and the switching auxiliary part is rotatably arranged in the power chamber, and the first gear and/or the second gear of one group of gear sets can be selectively pushed to move along the axial direction through the rotation of the switching auxiliary part.

Furthermore, the end face, facing the second gear, of the first gear is provided with a first ratchet, the end face, facing the first gear, of the second gear is provided with a second ratchet, and the first gear is in transmission connection with the second gear when the first ratchet is meshed with the second ratchet.

Furthermore, the gear set further comprises an elastic resetting piece, wherein the elastic resetting piece is arranged between the first gear and the second gear and is used for driving the first gear and/or the second gear to reset.

Furthermore, an ejection part is arranged on the switching auxiliary part, and the switching auxiliary part is used for rotating until the ejection part faces the first gear and/or the second gear of one group of gear sets, so that the ejection part pushes the first gear and/or the second gear of one group of gear sets to move axially.

Further, the switching auxiliary member is sheet-shaped, and one side of the switching auxiliary member facing the gear set protrudes outward toward the gear set to form the pushing portion.

Furthermore, the powder grinder further comprises a first gear shaft used for arranging the output gear, a second gear shaft used for arranging the input gear and a third gear shaft used for arranging the first gear and the second gear, the switching auxiliary piece is rotatably arranged on the second gear shaft, and the switching auxiliary piece is provided with an avoidance groove used for avoiding the first gear shaft and/or the third gear shaft.

Further, the crocus device is still including locating switching knob on the crocus device casing, switching knob connect in switch the auxiliary member, be used for driving under the effect of external force switch the auxiliary member for the crocus device casing rotates.

Further, switch the knob and be equipped with the draw-in groove, switch the auxiliary member and outwards extend and form and be used for with the fixture block of draw-in groove joint.

Further, be equipped with on the crocus ware casing respectively communicate in a plurality of grind the chamber a plurality of material feeding mouth, the crocus ware casing still includes a plurality of sealed lids, and is a plurality of sealed lid is used for opening respectively or closes a plurality of material feeding mouth.

Furthermore, the pulverizer shell comprises a bottom shell, a grinding cavity shell, a middle seat shell, a power cavity shell and a top shell which are sequentially arranged from bottom to top;

a plurality of grinding chambers are formed by enclosing the bottom shell, the grinding cavity shell and the middle seat shell;

the middle seat shell, the power cavity shell and the top shell are enclosed to form the power cavity.

The powder grinder provided by the invention has the following technical effects:

the invention provides a powder grinder which comprises a powder grinder shell, a plurality of groups of grinding assemblies, a plurality of output gears, an input gear, a plurality of groups of gear sets and a switching auxiliary part, wherein a power cavity and a plurality of grinding cavities are formed in the powder grinder shell, the plurality of groups of grinding assemblies are respectively arranged in the plurality of grinding cavities, the plurality of output gears are arranged in the power cavity and are respectively connected with the plurality of groups of grinding assemblies, the input gear is arranged in the power cavity, the plurality of groups of gear sets are arranged in the power cavity, each gear set comprises a first gear and a second gear which are arranged at intervals, the first gears of the plurality of groups of gear sets are respectively meshed with the plurality of output gears, the second gears of the plurality of groups of gear sets are respectively meshed with the input gear, the first gears and/or the second gears can move axially to enable the first gears and the second gears to be connected or separated, the switching auxiliary part is rotatably arranged in the power cavity, and the first gears and/or the second gears of one group of gear sets can be selectively pushed through the rotation of the switching auxiliary part The two gears move along the axial direction. The grinder of the scheme is provided with a plurality of groups of grinding assemblies and a plurality of grinding chambers, the grinding assemblies are switched to push the first gear and/or the second gear of one group of gear sets to move axially to be in transmission connection through rotating the switching auxiliary piece, so that the input gear is in transmission connection with one output gear, one grinding assembly is driven to grind in one grinding chamber, meanwhile, the first gears and the second gears of other gear sets still keep an interval separation state, namely the input gear is not in transmission connection with other output gears, therefore, other grinding assemblies do not grind, and according to different grinding requirements, the grinding assemblies which are different in formation can be switched to grind spices in different grinding chambers through rotating the switching auxiliary piece at any time. Adopt the separation and reunion structure that switching auxiliary member and gear train constitute, realize the closure and the separation of separation and reunion structure through rotating, convenient operation, the incorruptibility is high.

Drawings

FIG. 1 is a schematic view of a mill according to an embodiment of the invention in use;

FIG. 2 is a schematic view of the closed configuration of the sealing lid of the pulverizer of the embodiment of the present invention;

FIG. 3 is a schematic view of the pulverizer of an embodiment of the present invention with the seal cover open;

FIG. 4 is a cross-sectional view of the pulverizer of an embodiment of the present invention with the seal cover open;

FIG. 5 is an exploded view of the embodiment of the present invention with the seal cover open;

FIG. 6 is a first schematic structural view of a portion of the structure of the pulverizer of the embodiment of the present invention;

FIG. 7 is a second schematic structural view of a portion of the pulverizer of an embodiment of the present invention;

fig. 8 is a schematic structural view of a switching aid of the pulverizer of the embodiment of the present invention.

Wherein the reference numerals have the following meanings:

10. a pulverizer; 1. a pulverizer housing; 11. a bottom case; 12. grinding the cavity shell; 121. a partition plate; 13. a center housing; 131. a feeding port; 132. a sealing cover; 14. a power cavity housing; 141. a left cavity shell; 142. a right cavity housing; 15. a top shell; a. a power chamber; b. a grinding chamber; 2. a grinding assembly; 21. a thickness adjusting knob; 3. an output gear; 31. a first gear shaft; 4. an input gear; 41. a second gear shaft; 5. a gear set; 51. a first gear; 511. a first ratchet; 52. a second gear; 521. a second ratchet; 53. a third gear shaft; 54. an elastic reset member; 6. switching the auxiliary member; 61. a pushing part; 62. an empty avoiding groove; 621. a first clearance groove; 622. a second clearance groove; 63. a clamping block; 7. switching a knob; 71. a card slot; 8. a gearbox assembly; 20. a hand held driver.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, 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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 5, the present invention discloses a powder grinder 10, the powder grinder 10 includes a powder grinder housing 1, a plurality of grinding assemblies 2, a plurality of output gears 3, an input gear 4, a plurality of gear sets 5 and a switching auxiliary member 6, a power chamber a and a plurality of grinding chambers b are formed in the powder grinder housing 1, the plurality of grinding assemblies 2 are respectively disposed in the plurality of grinding chambers b, the plurality of output gears 3 are disposed in the power chamber a and respectively connected to the plurality of grinding assemblies 2, the input gear 4 is disposed in the power chamber a, the plurality of gear sets 5 are disposed in the power chamber a, the gear sets 5 include first gears 51 and second gears 52 which are disposed at intervals, the first gears 51 of the plurality of gear sets 5 are respectively engaged with the plurality of output gears 3, the second gears 52 of the plurality of gear sets 5 are engaged with the input gear 4, the first gears 51 and/or the second gears 52 can move axially to engage or disengage the first gears 51 and the second gears 52, the switching auxiliary member 6 is rotatably disposed in the power chamber a, and the first gear 51 and/or the second gear 52 of one of the gear sets 5 are selectively pushed to move axially by the rotation of the switching auxiliary member 6.

The grinder of the present embodiment is provided with a plurality of sets of grinding assemblies 2 and a plurality of grinding chambers b, wherein the input gear 4 is in transmission connection with one of the output gears 3 by rotating the switching auxiliary member 6 to push the first gear 51 and/or the second gear 52 of one of the sets of gears 5 to move axially, so as to drive one of the grinding assemblies 2 to grind in one of the grinding chambers b, and meanwhile, the first gear 51 and the second gear 52 of the other set of gears 5 still keep a spaced separation state, i.e. the input gear 4 is not in transmission connection with the other output gears 3, so that the other grinding assemblies 2 do not grind, and the rotation of the switching auxiliary member 6 can be switched to different grinding assemblies 2 to grind the spices in different grinding chambers b at any time according to different grinding requirements. The clutch structure formed by the switching auxiliary part 6 and the gear set 5 is adopted, the clutch structure is closed and separated through rotation, the operation is convenient, and the durability is high.

The first gear 51 and/or the second gear 52 can be axially movably connected to the transmission mechanism, which includes the following three conditions: the first gear 51 can be axially movable to be in transmission connection with the second gear 52, and the second gear 52 can be axially movable to be in transmission connection with the first gear 51, or both the first gear 51 and the second gear 52 can be axially movable to be in transmission connection with the first gear 51 and the second gear 52.

Similarly, the switching auxiliary member 6 is used for rotating to push the first gear 51 and/or the second gear 52 of one of the gear sets 5 to move axially, which includes the following three conditions: the switching auxiliary member 6 is used for rotating to push the first gear 51 of one of the gear sets 5 to move axially, the switching auxiliary member 6 is used for rotating to push the second gear 52 of one of the gear sets 5 to move axially, or the switching auxiliary member 6 is used for rotating to push the first gear 51 and the second gear 52 of one of the gear sets 5 to move axially.

In the present embodiment, the second gear 52 can be axially moved to be in transmission connection with the first gear 51, and the switching auxiliary member 6 is used to rotate to push the second gear 52 of one of the gear sets 5 to move axially.

In some embodiments, a gear box assembly 8 is further disposed in the power chamber a, the input gear 4 is in transmission connection with the gear box assembly 8, and the gear box assembly 8 is configured to drive the input gear 4 to rotate under the external force.

Preferably, the power input to the gearbox assembly 8 is achieved by a hand held drive 20. Specifically, connecting the hand drive 20 to the mill housing 1 and connecting the drive shaft of the hand drive 20 to the gearbox assembly 8, activating the hand drive 20, the hand drive 20 rotates the gearbox assembly 8, thereby transmitting power to the grinding assembly 2 to grind the grinding assembly 2.

Referring to fig. 4 to 8, in some embodiments, in order to form a power chamber a and a plurality of grinding chambers b in the pulverizer housing 1, the pulverizer housing 1 includes a bottom shell 11, a grinding cavity shell 12, a middle seat shell 13, a power cavity shell 14, and a top shell 15, which are sequentially disposed from bottom to top, the bottom shell 11, the grinding cavity shell 12, and the middle seat shell 13 enclose therebetween a plurality of grinding chambers b, and the middle seat shell 13, the power cavity shell 14, and the top shell 15 enclose therebetween a power chamber a.

Wherein, be equipped with division board 121 in grinding cavity shell 12, division board 121 is used for separating into a plurality of grinding cavity rooms b with grinding cavity shell 12. The polishing assembly 2 extends from the polishing chamber b to the bottom shell 11 and is fixed on the bottom shell 11.

The power cavity shell 14 includes a left cavity shell 141 and a right cavity shell 142, and the left cavity shell 141 and the right cavity shell 142 are connected in an involution manner.

In some embodiments, the pulverizer 10 further includes a first gear shaft 31 for providing the output gear 3, a second gear shaft 41 for providing the input gear 4, and a third gear shaft 53 for providing the first gear 51 and the second gear 52. Wherein the input gear 4 is integrally formed with the second gear shaft 41.

In some embodiments, the pulverizer housing 1 is provided with a plurality of charging ports 131 respectively communicating with the plurality of grinding chambers b, and the pulverizer housing 1 further includes a plurality of sealing caps 132, and the plurality of sealing caps 132 are respectively used for opening or closing the plurality of charging ports 131. So configured, when the perfume needs to be added, the sealing cover 132 can be opened to open the feeding port 131, so that the perfume can be added through the feeding port 131; when the perfume is not required to be added, the sealing cover 132 is closed to close the material adding port 131, so that the sealing performance of the grinding cavity during grinding can be ensured.

Further, a sealing cover 132 is provided on the pulverizer housing 1 in a reversible manner, that is, the sealing cover 132 is opened or closed by means of a flip cover to open or close the charging port 131. With the arrangement, on one hand, the sealing cover 132 is opened or closed in a flip manner, so that the operation is simple and the use is convenient; on the other hand, the sealing cover 132 is turned over and opened without being detached, so that the sealing cover 132 is prevented from being detached from the pulverizer housing 1 and lost.

Further, as can be seen from the above, the grinding chamber b is formed by enclosing the bottom shell 11, the grinding cavity shell 12 and the middle seat shell 13 from bottom to top, and preferably, the material adding port 131 is disposed on the middle seat shell 13, that is, the material adding port 131 is located above the grinding chamber b, so that the spice can be prevented from leaking out along the material adding port 131 in the process of adding the spice. Since the charging port 131 is provided on the center housing 13, the sealing cover 132 may be reversely provided on the center housing 13 accordingly.

Exemplarily, two grinding chambers b, two sets of grinding assemblies 2, two output gears 3, and two sets of gear sets 5 are formed in the pulverizer housing 1, the two sets of grinding assemblies 2 are respectively disposed in the two grinding chambers b, the two output gears 3 are respectively connected to the two sets of grinding assemblies 2, and the first gears 51 of the two sets of gear sets 5 are respectively connected to the two output gears 3. Accordingly, the number of the charging ports 131 and the sealing caps 132 is two corresponding to the number of the grinding chambers b. It is understood that the number of the grinding chamber b, the grinding assembly 2, the output gear 3, the gear set 5, the material adding port 131 and the sealing cover 132 may be three or more, and is not limited herein.

In some embodiments, in order to enable the first gear 51 and/or the second gear 52 to be axially movable to be in transmission connection, the end surface of the first gear 51 facing the second gear 52 is provided with a first ratchet 511, the end surface of the second gear 52 facing the first gear 51 is provided with a second ratchet 521, the first gear 51 and the second gear 52 are in transmission connection when the first ratchet 511 and the second ratchet 521 are meshed with each other, that is, when the first gear 51 and the second gear 52 are in a spaced apart state, the first ratchet 511 and the second ratchet 521 are also in a spaced apart state, and when the first gear 51 and/or the second gear 52 are axially movable to enable the first ratchet 511 and the second ratchet 521 to be meshed with each other, the first gear 51 and the second gear 52 are in transmission connection.

In some embodiments, in order to shift the switching auxiliary member 6 to push the first gear 51 and/or the second gear 52 of the rear group of gear sets 5 to move axially, the first gear 51 and/or the second gear 52 of the front group of gear sets 5 can be separately reset, the gear sets 5 further include an elastic reset member 54, and the elastic reset member 54 is disposed between the first gear 51 and the second gear 52 and is used for driving the first gear 51 and/or the second gear 52 to reset. As mentioned above, the second gear 52 can be axially movably connected to the first gear 51, that is, the elastic restoring member 54 is used for driving the second gear 52 to restore.

Illustratively, the resilient return 54 is a spring.

In some embodiments, in order to enable the switching auxiliary member 6 to rotate to push the first gear 51 and/or the second gear 52 of one of the gear sets 5, the switching auxiliary member 6 is provided with a pushing portion 61, and the switching auxiliary member 6 is configured to rotate until the pushing portion 61 faces the first gear 51 and/or the second gear 52 of one of the gear sets 5, so that the pushing portion 61 pushes the first gear 51 and/or the second gear 52 of one of the gear sets 5 to move in the axial direction. With this arrangement, when the switching auxiliary member 6 rotates until the pushing portion 61 faces the first gear 51 and/or the second gear 52 of one of the gear sets 5, the pushing portion 61 pushes the first gear 51 and/or the second gear 52 of the corresponding gear set 5. In addition, the first gear 51 and/or the second gear 52 of the other gear set 5 are not pushed by the pushing part 61, and the first gear 51 and the second gear 52 of the other gear set 5 are in a separated state under the action of the elastic restoring member 54.

Further, the switching aid 6 is sheet-shaped, and a side of the switching aid 6 facing the gear train 5 is convex toward the gear train 5 to form a pushing portion 61. The switching auxiliary member 6 which is sheet-shaped and protrudes outwards to form the pushing part 61 is adopted, so that the occupied setting space is small, and the miniaturization design of the grinder is facilitated.

Furthermore, the switching auxiliary member 6 is rotatably disposed on the second gear shaft 41, and in order to avoid interference between the switching auxiliary member 6 and the first gear shaft 31 and/or the third gear shaft 53, the switching auxiliary member 6 is provided with a clearance groove 62 for avoiding the first gear shaft 31 and/or the third gear shaft 53. Specifically, when the first gear shaft 31 needs to be inserted into the switching auxiliary member 6, the switching auxiliary member 6 is provided with an avoidance groove 62 for avoiding the first gear shaft 31; when the third gear shaft 53 needs to penetrate through the switching auxiliary member 6, the switching auxiliary member 6 is provided with an avoidance groove 62 for avoiding the third gear shaft 53; when the first gear shaft 31 and the third gear groove need to penetrate through the switching auxiliary member 6, the switching auxiliary member 6 is provided with an avoidance groove 62 for avoiding the first gear shaft 31 and the third gear shaft 53. In the present embodiment, when the first gear shaft 31 and the third gear groove need to be inserted into the switching auxiliary 6, the switching auxiliary 6 is provided with the clearance groove 62 for avoiding the first gear shaft 31 and the third gear shaft 53.

Illustratively, the clearance groove 62 includes a first clearance groove 62162 for avoiding the first gear shaft 31 and a second clearance groove 62262 for avoiding the second gear shaft 41. It is understood that in other preferred embodiments, the avoidance of the first gear shaft 31 and the third gear shaft 53 through the same clearance groove 62 may be adopted, and the design is not limited herein.

In some embodiments, in order to facilitate the use of the rotary switching aid 6 for switching between different grinding modules 2 for grinding operations, the powder mill 10 further comprises a switching knob 7 provided on the mill housing 1, the switching knob 7 being connected to the switching aid 6, the switching knob 7 being used to drive the switching aid 6 under the action of an external force to rotate relative to the mill housing 1. So configured, the user can effect rotation of the switching aid 6 by rotating the switching knob 7.

Further, in order to realize the connection between the switching knob 7 and the switching auxiliary member 6, the switching knob 7 is provided with a clamping groove 71, and the switching auxiliary member 6 extends outwards to form a clamping block 63 for clamping with the clamping groove 71. So set up, through going into the draw-in groove 71 on switching knob 7 with the fixture block 63 card on switching auxiliary member 6, can realize switching knob 7 and switching auxiliary member 6's being connected, easy dismounting.

In some embodiments, in order that the grinding assembly 2 can grind powders of different thicknesses, the grinding assembly 2 is provided with a thickness adjustment knob 21 that rotates in a first direction to fine powder and in a second direction to coarse powder, wherein the first direction is one of counterclockwise and clockwise and the second direction is the other of counterclockwise and clockwise. With the arrangement, when the finer powder needs to be ground, the thickness adjusting knob 21 can be rotated along the first direction; when the coarse powder needs to be ground, the thickness adjusting knob 21 can be rotated in the second direction, so as to meet different grinding requirements.

Illustratively, the first direction is clockwise and the second direction is counterclockwise.

The operation of the mill 10 is described in detail below:

firstly, the sealing cover 132 is turned over and opened to open the material adding port 131, then spice is added into the grinding chamber b through the material adding port 131, then the sealing cover 132 is turned over to seal the material adding port 131, then the handheld driver 20 is connected to the pulverizer 10, a power supply start key of the handheld driver 20 is pressed, a motor in the handheld driver 20 starts to rotate at a high speed, the speed is reduced and the torque is increased according to a certain transmission ratio through the gear box component 8 in the power chamber a, at the moment, the gear box component 8 is transmitted to the input gear 4, the switching auxiliary component 6 is rotated through the rotation of the switching knob 7, the rotation of the switching auxiliary component 6 enables the pushing part 61 of the switching auxiliary component 6 to push the second gear 52 of one group of the gear sets 5 to be axially moved to be in transmission connection with the first gear 51, so that the input gear 4 is in transmission connection with one of the output gears 3, and further one of the grinding components 2 is driven to carry out grinding work in one of the grinding chambers b, at the same time, the first gear 51 and the second gear 52 of the other gear set 5 are kept in a spaced-apart state by the elastic restoring member 54, that is, the input gear 4 is not in transmission connection with the other output gear 3, so that the other grinding assembly 2 does not perform grinding work. When the thickness degree of the spice ground into powder needs to be adjusted, the handheld driver 20 can be suspended, the thickness adjusting knob 21 on the grinding assembly 2 can be adjusted, the handheld driver 20 can be continuously started after the thickness adjusting knob is adjusted, and the machine can be stopped until the powder grinding is finished.

The invention provides a powder grinder 10, which comprises a powder grinder shell 1, a plurality of groups of grinding components 2, a plurality of output gears 3, an input gear 4, a plurality of groups of gear sets 5 and a switching auxiliary part 6, wherein a power chamber a and a plurality of grinding chambers b are formed in the powder grinder shell 1, the plurality of groups of grinding components 2 are respectively arranged in the plurality of grinding chambers b, the plurality of output gears 3 are arranged in the power chamber a and are respectively connected with the plurality of groups of grinding components 2, the input gear 4 is arranged in the power chamber a, the plurality of groups of gear sets 5 are arranged in the power chamber a, the gear sets 5 comprise first gears 51 and second gears 52 which are arranged at intervals, the first gears 51 of the plurality of groups of gear sets 5 are respectively meshed with the plurality of output gears 3, the second gears 52 of the plurality of groups of gear sets 5 are respectively meshed with the input gear 4, the first gears 51 and/or the second gears 52 can move along the axial direction to enable the first gears 51 and the second gears 52 to be jointed or separated, the switching auxiliary member 6 is rotatably disposed in the power chamber a, and the first gear 51 and/or the second gear 52 of one of the gear sets 5 are selectively pushed to move axially by the rotation of the switching auxiliary member 6. The grinder of the present embodiment is provided with a plurality of sets of grinding assemblies 2 and a plurality of grinding chambers b, wherein the input gear 4 is in transmission connection with one of the output gears 3 by rotating the switching auxiliary member 6 to push the first gear 51 and/or the second gear 52 of one of the gear sets 5 to move axially, so as to drive one of the grinding assemblies 2 to grind in one of the grinding chambers b, and meanwhile, the first gear 51 and the second gear 52 of the other gear sets 5 still keep a spaced separation state, i.e. the input gear 4 is not in transmission connection with the other output gears 3, so that the other grinding assemblies 2 do not grind, and the grinding assemblies 2 of different grinding chambers b can be switched by rotating the switching auxiliary member 6 at any time to grind spices of different grinding chambers b according to different grinding requirements. The clutch structure formed by the switching auxiliary part 6 and the gear set 5 is adopted, the clutch structure is closed and separated through rotation, the operation is convenient, and the durability is high.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.