CN212815955U - Bean grinding coffee machine and start-stop switch assembly - Google Patents

Abstract

The utility model relates to a grind beans coffee machine and open and stop switch module, open and stop switch module and include rotating member, trigger piece and trigger switch. Wherein the rotating member includes a rotating portion; the trigger piece is connected with the rotating part and can rotate around the central axis of the rotating part; the trigger switch is used for being electrically connected with the cutter head assembly; the rotating part can drive the trigger part to rotate to enable the trigger part to be matched with the trigger switch in a triggering mode or arranged at intervals. Because only when the rotation portion rotates can drive trigger piece trigger switch, even the maloperation has taken place, for example touch or pressed the rotating member carelessly, trigger piece and trigger switch also are in the detached state all the time, also can not start the cutter head subassembly to can avoid the incident because of the cutter head subassembly operation leads to, factor of safety is high.

Description

Bean grinding coffee machine and start-stop switch assembly

Technical Field

The utility model relates to the technical field of articles for daily use, especially, relate to a grind beans coffee machine and open and stop switch module.

Background

The bean grinding coffee machine can grind coffee beans into coffee powder on site, and then the coffee powder is conveyed into the brewing container by the powder channel for brewing, so that the coffee liquid suitable for drinking can be prepared. The coffee bean grinding machine is favored by more and more people in daily life due to the use convenience. The coffee bean grinding machine utilizes the cutter head assembly to fully grind coffee beans, so that coffee powder with the thickness meeting the requirement is obtained. Among them, the cutter disc assembly needs to be rotated at a high speed to grind coffee beans, and thus, when a malfunction occurs to operate the cutter disc assembly, a safety accident is easily caused.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a bean grinding coffee machine and a start-stop switch assembly for solving the problem that a misoperation is easy to cause a safety accident.

In one aspect, a start-stop switch assembly is provided, comprising:

a rotating member including a rotating portion;

the trigger piece is connected with the rotating part and can rotate around the central axis of the rotating part; and

the trigger switch is used for being electrically connected with the cutter head assembly;

the rotating part can drive the trigger part to rotate to enable the trigger part to be matched with the trigger switch in a triggering mode or arranged at intervals.

When the starting and stopping switch assembly of the embodiment needs to start the cutter head assembly, the rotating part needs to be rotated, so that the rotating part is driven to rotate around the central axis of the rotating part, the trigger part is driven to rotate around the central axis of the rotating part, and the trigger part is driven to rotate until the trigger part is in triggering fit with the trigger switch, so that the cutter head assembly is electrified and started; when the cutter head assembly is required to stop working, the rotating piece only needs to be rotated reversely, so that the trigger piece and the trigger switch can be driven to be arranged at intervals to realize separation, and the cutter head assembly can be stopped when power is cut off. Because only when the rotation portion rotates can drive trigger piece trigger switch, even the maloperation has taken place, for example touch or pressed the rotating member carelessly, trigger piece and trigger switch also are in the detached state all the time, also can not start the cutter head subassembly to can avoid the incident because of the cutter head subassembly operation leads to, factor of safety is high.

In one embodiment, the start-stop switch assembly further comprises a support provided with a guide portion in guiding fit with the trigger.

In one embodiment, the supporting member is a supporting sleeve, the supporting sleeve is provided with a mounting cavity, the guiding portion is a guiding groove penetrating through the inner wall of the mounting cavity, the trigger switch is arranged on the outer side of the supporting sleeve, the rotating portion is arranged in the mounting cavity in a penetrating mode, and the trigger member can extend out of the guiding groove. So, utilize and support the cover and provide the support for the installation and the fixed of trigger piece to, utilize the guide way to lead for the rotation of trigger piece, make the rotation that the trigger piece can be accurate extremely with trigger switch trigger cooperation.

In one embodiment, the trigger member includes a rotating disc and a protrusion disposed on a side wall of the rotating disc, the rotating disc is connected to the rotating portion, the rotating disc is disposed in the mounting cavity, the protrusion penetrates through the guide groove, and the protrusion can be in trigger fit with or spaced from the trigger switch. Therefore, when the rotating disc rotates, the rotating disc drives the protrusion to rotate to be matched with the trigger switch in a triggering mode, and therefore the cutter head assembly is started.

In one embodiment, the support sleeve is provided with a support table for supporting the rotary disk. Thus, the rotating disc is supported by the supporting table.

In one embodiment, the outer diameter of the rotating disc matches the inner diameter of the mounting cavity. Therefore, the rotating disc can rotate smoothly in the mounting cavity.

In one embodiment, the rotating member includes a hand-held portion, the hand-held portion is connected to one end of the rotating portion, and the other end of the rotating portion is connected to the trigger member. Thus, the rotating part is convenient to rotate.

In one embodiment, the number of the trigger switches is at least two, at least two trigger switches are arranged around the rotating part, and the trigger piece can be in trigger fit with or spaced from one trigger switch.

In one embodiment, the number of the trigger switches is two, the two trigger switches are symmetrically arranged about the central axis of the rotating part, and the trigger piece can be in trigger fit with or spaced from the two trigger switches.

On the other hand, a grind beans coffee machine is provided, include start stop switch module and blade disc assembly, blade disc assembly with start stop switch module electric connection.

According to the bean grinding coffee machine of the embodiment, the starting and stopping of the cutter head assembly are controlled by the starting and stopping switch assembly, so that the cutter head assembly can be prevented from operating due to misoperation, and further safety accidents can be prevented.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is an exploded schematic view of a bean grinding coffee machine of one embodiment;

FIG. 2 is a cross-sectional view of the coffee bean grinding machine of FIG. 1 from a perspective;

fig. 3 is a partially enlarged view of a portion B of the bean grinding coffee machine of fig. 2.

Description of reference numerals:

10. the starting and stopping switch assembly comprises a starting and stopping switch assembly 100, a rotating part 110, a rotating part 120, a handheld part 200, a trigger part 210, a rotating disc 220, a protrusion 300, a trigger switch 400, a supporting sleeve 410, a mounting cavity 420, a guide groove 430, a supporting table 20, a cutter head assembly 21, a rotating driving part 22, a first cutter head 23 and a second cutter head.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In one embodiment, as shown in fig. 1, a coffee bean grinder is provided, which includes a start/stop switch assembly 10 and a cutter head assembly 20, wherein the cutter head assembly 20 is electrically connected to the start/stop switch assembly 10. In this way, the start and stop of the cutter head assembly 20 is controlled by the start-stop switch assembly 10, so that the cutter head assembly 20 can be prevented from operating due to misoperation, and further safety accidents can be prevented.

The cutter head assembly 20 can be any existing assembly capable of grinding coffee beans, and only the requirement that coffee powder with the thickness meeting the requirement can be made is met. The electrical connection between the cutter head assembly 20 and the start-stop switch assembly 10 can be realized by a wire connection.

In one embodiment, the cutter head assembly 20 includes a rotary drive 21 and a first cutter head 22 mounted on a rotary output of the rotary drive 21. In this manner, rotation of the rotary output drives the first cutter head 22 to rotate, thereby grinding the coffee beans. Of course, the cutter head assembly can also comprise a second cutter head 23 detachably connected with the rotary output end, coffee beans are ground by matching the first cutter head 22 and the second cutter head 23, and coffee powder with different thicknesses can be obtained by grinding according to actual needs. Wherein the rotary drive 21 may be a drive motor or other existing element capable of providing a turning moment; the second cutter head 23 can be detachably connected with the rotary output end through the existing modes of inserting fit, clamping fit and the like.

In one embodiment, as shown in fig. 1, a start stop switch assembly 10 is provided that includes a rotary member 100, a trigger member 200, and a trigger switch 300. Wherein, the rotary member 100 includes a rotating portion 110; the trigger 200 is connected with the rotating part 110, and the trigger 200 can rotate around the central axis of the rotating part 110; the trigger switch 300 is used for electrically connecting with the cutter head assembly 20; the rotating part 110 can drive the trigger 200 to rotate to enable the trigger 200 to be in trigger fit with the trigger switch 300 or arranged at intervals.

When the cutter head assembly 20 needs to be started, the start-stop switch assembly 10 of the above embodiment needs to rotate the rotating member 100, so as to drive the rotating portion 110 to rotate around the central axis of the rotating portion, and further drive the trigger member 200 to rotate around the central axis of the rotating portion 110, until the trigger member 200 rotates to be in trigger fit with the trigger switch 300, so that the cutter head assembly 20 is powered on to be started; when the cutterhead assembly 20 is required to stop working, the rotating member 100 is only required to be rotated reversely, so that the trigger member 200 and the trigger switch 300 can be driven to be arranged at intervals to realize separation, and the cutterhead assembly 20 can be powered off and stopped. Because the trigger 200 can be driven to trigger the trigger switch 300 only when the rotating part 100 rotates, even if misoperation occurs, such as careless touch or pressing of the rotating part 100, the trigger 200 and the trigger switch 300 are always in a separated state, and the cutter head assembly 20 cannot be started, so that safety accidents caused by the operation of the cutter head assembly 20 can be avoided, and the safety factor is high.

The rotating part 110 may be a rotating shaft, a rotating base, or the like; the trigger 200 may be a bar, a plate, or other structure capable of triggering the trigger switch 300; the trigger switch 300 may be a piezoelectric inductive switch, a micro switch, or other switching element capable of being triggered to energize. The trigger 200 may be connected to the rotating part 110 by screwing, riveting, or clipping.

Further, the start-stop switch assembly 10 further comprises a support (not labeled) provided with a guide (not labeled) for guiding engagement with the trigger 200. Thus, the support member is utilized to provide a supporting and mounting position for the rotating member 100 and the triggering member 200; meanwhile, the guide part is matched with the trigger 200 in a guiding manner, so that the trigger 200 can rotate along the preset track more accurately, and the trigger 200 can rotate to the trigger switch 300 accurately.

The supporting member may be a supporting frame, a supporting seat or other elements capable of supporting. The guiding cooperation between the guiding part and the trigger member 200 can be realized in a sliding fit manner or a rolling fit manner, and only the requirement that the trigger member 200 can be guided to rotate along a preset track to trigger the trigger switch 300 is met.

As shown in fig. 1-3, in one embodiment, the support member comprises a support sleeve 400. The support sleeve 400 is provided with a mounting cavity 410. The guide portion is provided as a guide groove 420 penetrating the inner wall of the mounting cavity 410. The trigger switch 300 is disposed outside the support sleeve 400, the rotating portion 110 is disposed in the installation cavity 410, and the trigger 200 can extend out of the guide groove 420. Thus, when the rotating portion 110 rotates to drive the trigger 200 to rotate, the guide groove 420 can be used for guiding and limiting the rotation of the trigger 200, so that the trigger 200 rotates along the opening direction of the guide groove 420, the trigger 200 can accurately rotate to contact with the trigger switch 300 outside the support sleeve 400, and the trigger switch 300 is switched on. Of course, when the rotating portion 110 is rotated in the reverse direction, the guide groove 420 may guide the trigger 200 to rotate to be spaced apart from the trigger switch 300, so that the trigger switch 300 is turned off and turned off.

As shown in fig. 1 to 3, further, the trigger 200 includes a rotating disc 210 and a protrusion 220 disposed on a sidewall of the rotating disc 210. The rotating disc 210 and the rotating part 110 are connected by welding, screwing, riveting or clamping, and the like, the rotating disc 210 is arranged in the installation cavity 410, the protrusion 220 penetrates through the guide groove 420, and the protrusion 220 can be in trigger fit or spaced arrangement with the trigger switch 300. Thus, the rotating portion 110 rotates to drive the rotating disc 210 to rotate around the central axis of the rotating portion 110, so as to drive the protrusion 220 arranged on the circumferential direction of the rotating disc 210 to rotate around the central axis of the rotating portion 110, and further enable the protrusion 220 to move to the trigger switch 300. In addition, in the rotating process of the protrusion 220, the inner wall of the guide groove 420 can guide the movement of the protrusion 220, so that the protrusion 220 can accurately move to be in trigger fit with the trigger switch 300. Similarly, when the rotating portion 110 is rotated in the reverse direction, the protrusion 220 and the trigger switch 300 can be driven to be separated and spaced, so that the trigger switch 300 is powered off and turned off. The protrusion 220 may be integrally formed with the rotating disc 210, or may be separately formed and assembled into a whole by fastening or screwing. In order to avoid the problem that the protrusion 220 is jammed or rotates unsmoothly in the rotation process of the rotating disc 210, the sliding friction between the protrusion 220 and the side wall of the guide groove 420 may be changed into rolling friction, for example, a first groove (not shown) is formed on the side wall of the guide groove 420, a second groove (not shown) corresponding to the first groove is formed on the protrusion 220, and rolling members such as balls are disposed in the first groove and the second groove, so that the friction between the protrusion 220 and the side wall of the guide groove 420 can be reduced, and the protrusion 220 can be driven by the rotating disc 210 to move smoothly along the forming track of the guide groove 420.

As shown in fig. 1, further, the support sleeve 400 is provided with a support table 430 for supporting the rotary disk 210. In this way, the rotating disk 210 can be placed on the supporting base 430, so that the supporting base 430 supports the rotating disk 210 and the rotating portion 110, and the rotating disk 210 can be ensured to rotate around the central axis of the rotating portion 110 by the rotating portion 110. Similarly, in order to enable the rotating disc 210 to rotate smoothly, the sliding friction between the rotating disc 210 and the supporting table 430 may be changed into rolling friction, for example, a third groove (not shown) is formed in the supporting table 430, a fourth groove (not shown) corresponding to the third groove is formed in the rotating disc 210, and rolling members such as balls are disposed in the third groove and the fourth groove, so that the frictional force between the rotating disc 210 and the supporting table 430 is reduced, and the rotating disc 210 can rotate more smoothly and more easily.

In one embodiment, the outer diameter of the rotating disc 210 matches the inner diameter of the mounting cavity 410. Therefore, the rotating disc 210 can rotate smoothly in the installation cavity 410 without interference, and the rotating disc 210 can drive the protrusion 220 to move to the trigger switch 300. The support of the rotating disk 210 in combination with the support base 430 enables the rotating disk 210 to stably and reliably rotate within the mounting cavity 410.

In order to further avoid the cutter head assembly 20 from being started by misoperation, an elastic resetting member such as a torsion spring can be sleeved on the outer side wall of the rotating part 110, so that even if a rotating moment is applied to the rotating part 110 by misoperation, the rotating angle of the rotating part 110 can be limited under the elastic action of the elastic resetting member, and therefore the trigger member 200 cannot rotate to be in trigger fit with the trigger switch 300, and further the cutter head assembly 20 cannot be started by electrifying. When the cutter head assembly 20 needs to be started, only enough rotating torque needs to be applied to the rotating part 110, so that the rotating part 110 overcomes the elastic force of the elastic resetting piece to rotate, and then the triggering piece 200 is driven to rotate to trigger the triggering switch 300; meanwhile, only by loosening the rotating part 110, the rotating part 110 can rotate reversely under the action of the reset force of the elastic reset piece, so that the trigger piece 200 is separated from the trigger switch 300.

In order to facilitate the rotation of the rotating member 100 by an operator, the structure of the rotating member 100 can be flexibly designed according to specific use requirements, so as to meet ergonomics and facilitate operation.

As shown in fig. 1 to 3, in one embodiment, the rotating member 100 further includes a handle 120, the handle 120 is connected to one end of the rotating member 110, and the other end of the rotating member 110 is connected to the trigger member 200. Therefore, the rotating part 110 can be driven to rotate only by rotating the handheld part 120, and the trigger piece 200 can be driven to rotate, so that an operator can operate the trigger piece conveniently; meanwhile, even if misoperation occurs, such as touching or pressing the handheld portion 120, the trigger 200 is not driven to rotate, so that the trigger 200 and the trigger switch 300 are in a separated state, the cutter head assembly 20 is not started, and safety accidents can be avoided. The handle 120 may be a knob or other conventional structure capable of assisting rotation. The handle 120 may be integrally formed with the rotating part 110, or may be assembled and assembled by means of screw connection, snap connection, or the like after being separately formed.

The number of the trigger switches 300 can be flexibly adjusted according to actual use requirements, and only the condition that when the trigger member 200 triggers the trigger switches 300, the cutter head assembly 20 can be electrified to work is met.

In one embodiment, there are at least two trigger switches 300, at least two trigger switches 300 are disposed around the rotating portion 110, and the trigger member 200 can be at least in trigger fit or spaced apart from one trigger switch 300. In this way, at least two trigger switches 300 are arranged at intervals in the circumferential direction of the rotating part 110, so that even if one trigger switch 300 is damaged, the cutter head assembly 20 can be started when the trigger 200 is in trigger fit with other undamaged trigger switches 300, and the cutter head assembly 20 can be ensured to run reliably. Wherein, the at least two trigger switches 300 can be uniformly arranged around the central axis of the rotating part 110, so that the at least two trigger switches 300 are encircled to form a circle; for example, when the number of the trigger switches 300 is two, the central angle of two trigger switches 300 may be 180 °, when the number of the trigger switches 300 is three, the central angle between adjacent two trigger switches 300 may be 120 °, and when the number of the trigger switches 300 is four, the central angle between adjacent two trigger switches 300 may be 90 °. When the trigger 200 includes the rotating disc 210 and the protrusions 220 disposed on the sidewall of the rotating disc 210, the number of the protrusions 220 may change correspondingly with the number of the trigger switches 300, and the protrusions 220 and the trigger switches 300 may be disposed in a one-to-one correspondence manner, so as to ensure that the trigger switches 300 can be triggered by the protrusions 220.

As shown in fig. 1 to 3, in particular to the embodiment of the present invention, the number of the trigger switches 300 is two, two trigger switches 300 are symmetrically disposed about the central axis of the rotating portion 110, and the trigger 200 can be disposed in a trigger fit or spaced relation with both of the two trigger switches 300. Thus, when the rotating part 110 rotates, the trigger 200 is driven to rotate, and when the trigger 200 is in trigger fit with both of the trigger switches 300, the cutter head assembly 20 can be powered on and started; in addition, since the two trigger switches 300 are symmetrically arranged about the central axis of the rotating portion 110, the rotating portion 110 rotates clockwise or counterclockwise, and the trigger piece 200 and the trigger switch 300 can be driven to be in trigger fit, so that the use is facilitated. Of course, the rotating portion 110 can drive the trigger 200 to rotate clockwise or rotate counterclockwise to trigger with the trigger switch 300, and also can drive the trigger 200 to rotate counterclockwise or rotate clockwise to separate from the trigger switch 300 and be disposed at intervals, so that the cutter head assembly 20 is powered off and stops working.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A start-stop switch assembly, comprising:

a rotating member (100), the rotating member (100) comprising a rotating portion (110);

a trigger (200), wherein the trigger (200) is connected with the rotating part (110), and the trigger (200) can rotate around the central axis of the rotating part (110); and

the trigger switch (300), the trigger switch (300) is used for electrically connecting with the cutter head assembly (20);

the rotating part (110) can drive the trigger piece (200) to rotate to enable the trigger piece (200) to be in trigger fit with the trigger switch (300) or be arranged at intervals.

2. The start-stop switch assembly according to claim 1, characterized in that it further comprises a support provided with a guide portion for guiding engagement with the trigger piece (200).

3. The start-stop switch assembly according to claim 2, characterized in that the support member comprises a support sleeve (400), the support sleeve (400) is provided with a mounting cavity (410), the guide portion is provided as a guide groove (420) penetrating through the inner wall of the mounting cavity (410), the trigger switch (300) is provided at the outer side of the support sleeve (400), the rotating portion (110) is arranged in the mounting cavity (410) in a penetrating manner, and the trigger member (200) can extend out of the guide groove (420).

4. The start-stop switch assembly according to claim 3, characterized in that the trigger member (200) comprises a rotating disc (210) and a protrusion (220) arranged on a side wall of the rotating disc (210), the rotating disc (210) is connected with the rotating part (110), the rotating disc (210) is arranged in the installation cavity (410), the protrusion (220) penetrates through the guide groove (420), and the protrusion (220) can be in trigger fit with or spaced from the trigger switch (300).

5. The start-stop switch assembly according to claim 4, characterized in that the support sleeve (400) is provided with a support table (430) for supporting the turn disc (210).

6. The start stop switch assembly of claim 4, characterized in that the outer diameter of the rotating disc (210) matches the inner diameter of the mounting cavity (410).

7. The start-stop switch assembly according to any one of claims 1 to 6, characterized in that the rotating member (100) further comprises a hand-held portion (120), the hand-held portion (120) being connected to one end of the rotating portion (110), the other end of the rotating portion (110) being connected to the trigger member (200).

8. The start-stop switch assembly according to any one of claims 1 to 6, characterized in that the number of the trigger switches (300) is at least two, at least two trigger switches (300) are arranged around the rotating part (110), and the trigger piece (200) can be in trigger fit or spaced arrangement with at least one trigger switch (300).

9. The start-stop switch assembly according to claim 8, characterized in that the trigger switches (300) are arranged in two, two trigger switches (300) are symmetrically arranged about the central axis of the rotating part (110), and the trigger piece (200) can be in trigger fit or spaced arrangement with both trigger switches (300).

10. A bean grinding coffee machine, comprising:

start-stop switch assembly (10) according to any one of claims 1 to 9; and

cutterhead subassembly (20), cutterhead subassembly (20) with start-stop switch subassembly (10) electric connection.

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