CN219759435U - Key assembly, host machine for cooking machine and cooking machine - Google Patents

Abstract

The utility model discloses a key assembly, a main machine for a cooking machine and the cooking machine. The key assembly comprises a switch seat, a rocker key, a first switch and a second switch. The switch mount includes a mounting cavity. The first switch and the second switch are symmetrically arranged on the switch seat and are positioned in the mounting cavity. The rocker key is rotationally connected with the switch seat through two rotating structures and is positioned in the mounting cavity of the switch seat, and the rocker key comprises a first pressing part and a second pressing part; the two rotating structures are arranged offset from the symmetry axes of the first switch and the second switch; pressing the first pressing part, and enabling the rocker key to rotate around a rotating structure on the same side as the second pressing part to trigger the first switch; pressing the second pressing part, the seesaw button rotates around the rotating structure on the same side as the first pressing part to trigger the second switch. From this, the symmetry axis of rotation structure skew two switches has increased the radius of rotation of wane button to, can reduce the peripheral clearance of wane button, make the button subassembly more pleasing to the eye.

Description

Key assembly, host machine for cooking machine and cooking machine

Technical Field

The utility model relates to the technical field of small household appliances, in particular to a key assembly, a host machine for a cooking machine and the cooking machine.

Background

The food processor comprises a key assembly. The key assembly comprises a rocker key, a switch seat, a first switch and a second switch. The rocker button is installed in the switch seat through the pivot to can move like the seesaw, including first pressing part and second pressing part. The first pressing part is pressed to press the first switch, the second pressing part is tilted up to be away from the second switch, the second pressing part is pressed to press the second switch, and the first pressing part is tilted up to be away from the first switch.

In the above-mentioned key switch, the peripheral clearance that the rocker button needs (the clearance between rocker button and the switch seat) is great, just can ensure that the rocker button presses smoothly, however, great peripheral clearance makes the button subassembly unsightly.

Disclosure of Invention

The utility model aims to provide a key assembly, a main machine for a cooking machine and the cooking machine. The key assembly can reduce the peripheral gap of the rocker key, so that the key assembly is more attractive.

The utility model provides a key assembly. The key assembly comprises a switch seat, a rocker key, a first switch and a second switch. The switch mount includes a mounting cavity. The first switch and the second switch are symmetrically arranged on the switch seat and are positioned in the mounting cavity; the rocker key is rotationally connected with the switch seat through two rotating structures and is positioned in the mounting cavity, and the rocker key comprises a first pressing part and a second pressing part; the two rotating structures are arranged offset from the symmetry axes of the first switch and the second switch; pressing the first pressing part, wherein the rocker button rotates around a rotating structure on the same side as the second pressing part so as to trigger the first switch to be turned on; the second pressing part is pressed, the rocker button rotates around a rotating shaft of a rotating structure on the same side as the first pressing part, and the second switch is triggered to be conducted.

According to the arrangement, as the two rotating structures deviate from the symmetry axes of the first switch and the second switch, namely the symmetry center, the rotating radius of the rocker key is increased, the gap required by rotation of the rocker key is reduced, and under the condition that the stroke of the rocker key trigger switch is fixed, the peripheral gap of the rocker key is reduced, the key assembly with smaller rotating amplitude is attractive, the rocker key can be smoothly pressed, and the first switch or the second switch can be correspondingly triggered.

In some embodiments, the switch base is provided with an assembling portion, and the assembling portion and the rocker key are assembled through two opposite buckle structures. Each snap feature acts as one of said rotational features.

As described above, through every buckle structure as one the rotating structure, the buckle structure not only realizes the equipment between wane button and the switch seat, but also realizes the function of pivot, and two kinds of functions are realized to the same structure, are favorable to simplifying the structure of button subassembly, moreover, detain mutually through the buckle structure and can make the wane button break away from the switch seat at the rotation in-process for wane button and switch seat can not break away from, in order to realize the function of rotating structure that can be better.

In some embodiments, at least one of the two rotating structures includes a side edge and a mating surface, the side edge being disposed on the switch base; the matching surface is arranged on the rocker key, and the rocker key rotates around the side edge through the matching surface.

Above-mentioned setting, because the rotating-structure includes side edge and mating surface, through mating surface and side edge cooperate and realize rotatory, and the side edge is equivalent to the function of pivot, adopts the face to cooperate with the line and realizes the pivot function, and the wane button is less at the in-process of rotating obstructed force, more is favorable to the wane button rotates, for example, the wane button rotates more smoothly.

In some embodiments, at least one of the two rotating structures includes a rotating shaft surface and a mating surface, both of which are cambered surfaces, the rotating shaft surface is disposed on the switch base, the mating surface is disposed on the rocker key, and the rocker key rotates around the rotating shaft surface through the mating surface.

The rotary structure is matched with the rotary shaft surface and the matching surface to realize rotation, and the aim can be achieved.

In some embodiments, in the case that each of the fastening structures is used as one of the rotating structures, the opposite sides of the assembling portion are provided with elongated through holes so as to form a strip-shaped fastening position at the edge of the assembling portion, the fastening structure includes the fastening position and a hook arm disposed on the rocker button, the hook arm is provided with the mating surface, and the fastening position is provided with the side edge or the rotating shaft surface.

As the long and narrow through hole is arranged, the buckling position has elasticity, and is convenient to buckle with the hook arm, so that the rocker button and the switch seat are convenient to assemble.

In some embodiments, the rocker button is movably connected with the switch base through a supporting mechanism, and the supporting mechanism is located between the two rotating structures. A first elastic piece is arranged between the first pressing part and the switch seat. The second elastic piece is arranged between the second pressing part and the switch seat, and under the action of the supporting mechanism, the maximum displacement of the rocker key in the vertical direction is smaller than the trigger stroke of the first switch and smaller than the trigger stroke of the second switch.

According to the arrangement, the stroke of the rocker key in the vertical direction is smaller than the trigger stroke of the first switch and smaller than the trigger stroke of the second switch by means of the supporting function of the supporting mechanism, the rocker key is prevented from being pressed to conduct two switches (the first switch and the second switch) simultaneously, meanwhile, the movable connection is matched with the stroke relation to provide a movable space for the rocker key, and the rocker key is pressed smoothly.

In some embodiments, the switch base includes two opposite limiting portions, the rocker key includes two opposite mating portions, each of the mating portions is movably connected with one of the limiting portions to form one of the supporting mechanisms, and a connecting line of the two supporting mechanisms passes through an axis of the symmetry axis so as to be located between the two rotating structures.

According to the arrangement, through the limiting parts which are oppositely arranged and the matching parts which are oppositely arranged, the connecting line of the two supporting mechanisms passes through the axle center of the symmetrical shaft so as to be positioned between the two rotating structures, and therefore, the two switches can be prevented from being triggered simultaneously.

In some embodiments, one of the mating portion and the limiting portion is a post, and the other is a socket, the post being inserted into the socket and clearance-fitted.

As the supporting mechanism comprises the matching part and the limiting part, one of the matching part and the limiting part is the inserting column, the other is the inserting hole, and the inserting column is inserted into the inserting hole and is in clearance fit with the inserting hole, so that the rocker button is simple in structure with the switch seat, and the rocker button is enabled to provide a movable space through the clearance fit, and then the rocker button is pressed smoothly.

In some embodiments, the post is cylindrical.

As the inserting column is a cylinder, the surface of the cylinder is an arc surface, the inserting column is convenient to be matched with the jack, and furthermore, under the condition of meeting the gap, the blocking force of the rocker key in the pressing process is small, and the rocker key is pressed smoothly.

In some embodiments, the clearance fit has a clearance d of 0.1 mm.ltoreq.d.ltoreq.0.5 mm.

As the setting is that d is more than or equal to 0.1mm and less than or equal to 0.5mm, the gap is not too large, so that the rocker key is unstable in the pressing process, and the resistance is large because the gap is too small, so that the pressing is not smooth.

On the other hand, the embodiment of the utility model discloses a host machine for a food processor. The host machine for the food processing machine comprises any one of the key assemblies, a shell and a motor, wherein the switch seat is assembled in the shell, the motor is assembled in the shell, and the motor works under the condition that the first switch is conducted or the second switch is conducted.

As set forth above, the food processor host has at least the beneficial effects brought by the key assembly.

In yet another aspect, an embodiment of the present utility model discloses a food processor. The food processor comprises the main machine, the stirring cutter assembly and the stirring cup for any one of the food processors, and the motor drives the stirring cutter assembly to rotate in the stirring cup under the working condition.

As set above, the food processor has at least the beneficial effects brought by the host machine for the food processor, and will not be described again.

Drawings

Fig. 1 is a cross-sectional view of a main machine for a food processor in the related art, illustrating that a rocker key is not pressed;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a cross-sectional view of a main machine for a food processor in the related art, illustrating that a rocker key is pressed and a corresponding first switch is turned on;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a schematic diagram of a key assembly according to an embodiment of the present utility model;

fig. 6 is a perspective view of a food processor according to an embodiment of the present utility model;

fig. 7 is an exploded view of the food processor shown in fig. 6;

FIG. 8 is a perspective view of the switch base of the first key assembly of FIG. 7, focusing on the structure of the back surface of the switch base;

FIG. 9 is a perspective view of the switch base of the first key assembly of FIG. 7, focusing on the front structure of the switch base;

FIG. 10 is a perspective view of a rocker key of the first key assembly of FIG. 7, highlighting the structure of the back surface of the rocker key;

fig. 11 is a cross-sectional view of a main unit for a food processor, illustrating a rocker key not being pressed, according to an embodiment of the present utility model;

FIG. 12 is an enlarged view of portion C of FIG. 11;

fig. 13 is a cross-sectional view of a main unit for a food processor, illustrating a rocker key being pressed and a corresponding first switch being turned on, according to an embodiment of the present utility model;

fig. 14 is an enlarged view of a portion D in fig. 13;

fig. 15 is a schematic view of a second key assembly.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model. Rather, they are merely examples of apparatus consistent with aspects of the utility model as detailed in the accompanying claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

Referring to fig. 1, 2, 3 and 4, in the related art, a main machine for a food processor includes a key assembly 10, a housing 20 and a motor 30. The motor 30 is assembled in the housing 20. The key assembly 10 comprises a switch base 1, a rocker key 2, a first switch 3 and a second switch 4. The switch base 1 is assembled at the top end of the casing 20 and above the motor 30, and includes a mounting cavity 101. The first switch 3 and the second switch 4 are symmetrically arranged on the switch seat 1. The rocker button 2 comprises a first pressing portion 21 corresponding to the first switch 3 and a second pressing portion 22 corresponding to the second switch 4, and is located in the mounting cavity 101. The rocker button 2 is assembled to the switch base 1 through the rotation shaft 231, so that the rocker button 2 can move like a rocker, and the rotation shaft 231 is located at the symmetry center of the first switch 3 and the second switch 4, that is, the first switch 3 and the second switch 4 are symmetrically arranged relative to the symmetry axis.

Referring to fig. 1 and 2 and comparing them with fig. 3 and 4, the operation of the key assembly 10 is described as follows:

pressing the first pressing part 21, the rocker button 2 rotates around the rotating shaft 231, the second pressing part 22 rises, the first switch 3 is turned on, and the motor 30 works, for example, the motor 30 works to enable the food processor to wring dishes;

pressing the second pressing part 22, the rocker button 2 rotates around the rotating shaft 231, the first pressing part 21 descends, the second switch 4 is turned on, and the motor 30 works, for example, the motor 30 works so that the food processor can break meat.

Above-mentioned cooking machine host computer has following problem: the rotation range of the rocker key 2 is larger, the mark is A1 (as shown in fig. 3), the peripheral gap B1 (as shown in fig. 2) needed by the rocker key 2 is larger (the gap between the rocker key and the switch seat), so that smooth pressing of the rocker key 2 can be ensured, but the key assembly is not attractive due to the larger peripheral gap.

In order to solve the above problems, the present utility model provides a key assembly 10, a food processor host 100 including the key assembly 10, and a food processor. The structure of the key assembly 10, the main machine 100 for a food processor, and the food processor will be described below with reference to the accompanying drawings.

Referring to fig. 11, 12, 13, 14 and 15 in combination with fig. 7, a key assembly 10 includes a switch base 1, a rocker key 2, a first switch 3 and a second switch 4. In addition, the key assembly 10 further comprises a first elastic member 5 and a second elastic member 6, and the first elastic member 5 and the second elastic member 6 are respectively used for resetting the rocker key 2. The switch housing 1 comprises a mounting cavity 101. The first switch 3 and the second switch 4 are symmetrically arranged on the switch base 1 and are positioned in the mounting cavity 101. The symmetry axis of the first switch 3 and the second switch 4 is not necessarily the symmetry axis of the switch holder 1. Referring to fig. 12 and 14, the rocker button 2 is rotatably connected to the switch base 1 through two rotating structures 23, and in combination with fig. 10, the rocker button 2 includes a first pressing portion 21 and a second pressing portion 22. The two rotation structures 23 may be the same as shown in the figure or may be different, and the rotation of the rocker key 2 may be achieved.

With continued reference to fig. 12 and 14 in combination with fig. 11 and 13, the two rotating structures 23 are both disposed offset from the symmetry axis of the first switch 3 and the second switch 4, and in one embodiment, the first pressing portion 21, one of the rotating structures 23 and the first switch 3 is located on one side of the symmetry axis, and the second pressing portion 22, the other rotating structure 23 and the second switch 4 are located on the other side of the symmetry axis. It should be noted that, in the drawings, the first switch 3, the first pressing portion 21, the second pressing portion 22, and the second switch 4 are shown as a set of teeter-totter structures, and a skilled person will understand that, based on the technical concept of the present utility model, the key assembly 10 may correspond to a plurality of sets of teeter-totter structures, so that the first pressing portion 21, the second pressing portion 22, the first switch 3, and the second switch 4 are respectively plural, but in this case, after each switch is turned on, the cooking device can implement different functions, for example, not limited to a hank function and a meat mincing function as described later. In the case where the key assembly 10 includes a plurality of seesaw structures, the key assembly 10 operates in the same manner as in the case of a single seesaw structure, and the constitution of the key assembly 10 will be described below by taking the single seesaw structure as an example.

Referring to fig. 14 in combination with fig. 13 and comparing them with fig. 12 and 11, fig. 11 and 12 show that the rocker button 2 is not pressed, a gap exists between the periphery of the rocker button 2 and the side wall of the accommodating cavity 101, at this time, the first pressing portion 21 does not make the first switch 3 conductive and the second pressing portion 22 does not make the second switch 4 conductive, comparing fig. 14 and 13 in combination with fig. 11 and 12, pressing the first pressing portion 21, the rocker button 2 turns on the first switch 3 around the rotating structure 23 (the rotating structure on the left side in fig. 12 and 14) on the same side as the second pressing portion 22, the second switch 4 is in the off state, and the motor 30 is operated, so that the food processor realizes the function of twisting dishes. Based on the seesaw movement mode of the seesaw key 2, the skilled person can understand that the second pressing portion 22 is pressed, the seesaw key 2 rotates around the rotating structure 23 (the rotating structure on the right side in fig. 12 and 14) on the same side as the first pressing portion 21 so that the second switch 4 is turned on, the motor 30 works, and the meat mincing function is realized by the food processor.

Referring to fig. 5 in combination with fig. 13, 12, 4 and 2, fig. 13 and 12 show that the rotation structure 23 is deviated from the symmetry axis, and fig. 3 shows that the rotation axis of the rotation structure is located at the axis S1 shown in fig. 5 in the related art. By analyzing the schematic diagram shown in fig. 5, the beneficial effects of the present utility model after the rotating structure 23 is set away from the symmetry axis of the first switch 3 and the second switch 4 are as follows:

in order to correspond to the pressing of the first pressing portion 21 shown in fig. 14, an axial center S1 of the symmetry axis is illustrated in fig. 5, and an axial center of the rotation structure (corresponding to an embodiment such as the side edge 2311 in fig. 12) is illustrated. As can be seen from fig. 5, when the same stroke L1 is rotated, the rotation radius of the rocker key 2 is R after the rotation structure 23 is set offset from the symmetry axis, and when the rotation structure is set at the symmetry axis, the rotation radius of the rocker key 2 is R, as can be seen from fig. 5, R > R, and the difference between the peripheral gaps of the rocker key 2 is N, therefore, the gap required for rotating the rocker key 2 can be reduced by adopting the key assembly of the present utility model, that is, the peripheral gap of the rocker key 2 can be reduced, and the peripheral gap B2 < B1 required for rotating the rocker key 2 can be reduced, and compared with fig. 12 and 4, the rotation amplitude A2 < A1 of the rocker key 2 can be smoothly pressed, and the first switch 3 or the second switch 4 can be triggered, thereby the key assembly of the present utility model is more attractive.

As the two rotating structures 23 are arranged away from the symmetry axis (i.e. symmetry center) of the first switch 3 and the second switch 4, the rotating radius of the rocker button is increased (R > R), the gap required by the rotation of the rocker button 2 is reduced, and under the condition that the stroke of the rocker button 2 triggering the switch is fixed, the peripheral gap (the gap between the edge of the rocker button and the side wall of the installation cavity) of the rocker button 2 is smaller, the rotating amplitude is smaller (A2 < A1), the button assembly is attractive, the rocker button 2 can be smoothly pressed, and the first switch 3 or the second switch 4 can be correspondingly triggered.

Referring to fig. 9 and 10 in conjunction with fig. 12 and 14, a first type of rotary structure is described as follows, wherein the first type of rotary structure 23 is formed by the cooperation of side edges (which may be understood as lines) and faces. At least one of the two rotating structures 23 includes a side edge 2311 and a mating surface 232. The side edge 2311 is disposed on the switch base 1. Referring to fig. 10, the mating surface 232 is disposed on the rocker key 2. As can be seen from a comparison of fig. 14 and 12, the rocker key 2 is rotated about the lateral edge 2311 by the engagement surface 232.

As set forth above, since the rotation structure 23 includes the side edge 2311 and the mating surface 232, the side edge 2311 is matched with the mating surface 232 to realize rotation, the side edge 2311 is equivalent to the function of the rotation shaft, and the surface is matched with the line to realize the function of the rotation shaft, so that the resistance of the rocker key 2 in the rotation process is smaller, which is more beneficial to the rotation of the rocker key 2, for example, the rotation of the rocker key 2 is smoother.

Referring to fig. 15, the second rotary structure 23 is described as follows: the second rotating structure 23 adopts a surface-surface fit formed by matching an arc surface and an arc surface to realize rotation, and specifically, at least one of the rotating structures 23 comprises a rotating shaft surface 233 and a matching surface 232 which are all arc surfaces. The respective arcs of the spindle surface 233 and the mating surface 232 may be realized by rounding or the like. The rotating shaft surface 233 is arranged on the switch seat 1, the matching surface 232 is arranged on the rocker button 2, and the rocker button 2 rotates around the rotating shaft surface 233 through the matching surface 232.

The above arrangement, through setting up pivot face 233 and mating surface 232 that are all cambered surface, the rotation structure 23 realizes rotating through the face-to-face cooperation, also can realize aforesaid purpose.

Referring to fig. 9 and 10 in conjunction with fig. 12 and 14, an embodiment of a rotary structure 23 is described as follows: the switch seat 1 is provided with an assembling part 11, and the assembling part 11 and the rocker key 2 are assembled through two opposite buckle structures. The specific constitution of the snap structure is not limited, and in fig. 9, 10, 12 and 14, the snap structure includes the snap position 13 shown in fig. 9 and the hook arm 24 shown in fig. 10. As shown in fig. 12 and 14, each snap feature acts as a rotational feature 23.

As set forth above, through every buckle structure as a rotating structure 23, buckle structure not only realizes the equipment between wane button 2 and the switch seat 1, still realizes the function of pivot, and two kinds of functions are realized to same structure, is favorable to simplifying the structure of button subassembly 10, moreover, detains mutually through buckle structure and can make wane button 2 break away from switch seat 1 at the rotation in-process for wane button 2 and switch seat 1 can not break away from, with the function that can better realization rotating structure 23.

In the above embodiment, the two functions are integrated in the snap structure, so it will be understood that in some embodiments, the two functions may be separated, the function of the rotating shaft is implemented by the surface-to-surface fit or the upper line fit, and the function of preventing the rocker button 2 from being separated from the switch base 1 is implemented by other components.

Referring to fig. 8 and 9 in combination with fig. 12 and 14, the opposite sides of the assembly portion 11 are provided with elongated through holes 12 to form elongated fastening portions 13 at the edges of the assembly portion 11. The fastening structure comprises the fastening position 13 and a hook arm 24 arranged on the rocker button 2. Referring to fig. 10, 12 and 14, the hook arm 24 is provided with the mating surface 232. Referring to fig. 9, 10 and 14, the fastening portion 13 is provided with the side edge 2311. Referring to fig. 15, the hook arm 24 is provided with the mating surface 232, and the fastening portion 13 is provided with the rotating shaft surface 233.

As mentioned above, the long and narrow through hole 12 is provided, the fastening portion 13 has elasticity, and is further convenient to fasten with the hook arm 24, so that the rocker button 2 is convenient to be assembled with the switch base 1.

Referring to fig. 12, 14 and 15, the switch seat 1 includes two opposite limiting portions 14. The limiting portion 14 is symmetrical with respect to the symmetry axis of the first switch 3 and the second switch 4 to achieve the opposite arrangement. The rocker key 2 comprises two opposite mating parts 25, the mating parts 25 also being symmetrical with respect to the axis of symmetry. Each of the engaging portions 25 is movably connected with one of the limiting portions 14 to form a supporting mechanism. Since the matching portion 25 and the limiting portion 14 are symmetrical with respect to the symmetry axis, the connecting line of the two supporting mechanisms passes through the axis of the symmetry axis. By means of the action of the limiting part 14 and the matching part 25, the maximum displacement of the rocker button 2 in the vertical direction is smaller than the triggering stroke of the first switch 3 and smaller than the triggering stroke of the second switch 4. Comparing fig. 12 and fig. 14, when the rocker button 2 is pressed, the rocker button 2 moves downward, taking the matching portion 25 as a plug and the limiting portion 14 as a jack as an example, in fig. 12, the plug is attached to the top of the jack, and in fig. 14, the plug moves downward to be separated from the top of the jack, that is, the supporting mechanism cooperates with the travel relationship to avoid that the first switch 3 and the second switch 4 are triggered simultaneously.

As the above arrangement, since the engaging portion 25 and the limiting portion 14 form a supporting mechanism, the supporting mechanism is located between the two rotating structures 23, the maximum displacement of the rocker key 2 in the vertical direction is controlled to be smaller than the trigger stroke of the first switch 3 and smaller than the trigger stroke of the second switch 4 by means of the supporting effect of the supporting mechanism, so that the rocker key 2 is prevented from being pressed to simultaneously conduct the two switches (the first switch 3 and the second switch 4), and meanwhile, the movable connection is engaged with the stroke relationship to provide a movable space for the rocker key 2, and the rocker key 2 is smoothly pressed. In addition, through the limiting part 14 and the matching part 25 which are oppositely arranged, the connecting line of the two supporting mechanisms passes through the axle center of the symmetrical shaft, so that the two switches can be prevented from being triggered simultaneously.

The engaging portion 25 and the limiting portion 14 are not limited to the insertion hole and the insertion post described later based on the function of the supporting mechanism.

Based on the above-mentioned embodiment, two supporting mechanisms are formed by the oppositely arranged limiting portions 14 and the oppositely arranged matching portions 25, and the connecting line of the two supporting mechanisms passes through the axis of the symmetry axis, which corresponds to the supporting mechanism arranged between the two rotating structures 23, based on the following concept, the following embodiment is also possible:

the rocker button 2 is movably connected with the switch seat 1 through a supporting mechanism, and the supporting mechanism is located between the two rotating structures 23. A first elastic member 5 is disposed between the first pressing portion 21 and the switch base 1. The second elastic piece 6 is arranged between the second pressing portion 22 and the switch seat 1, and the stroke of the rocker key 2 in the vertical direction relative to the switch seat 1 under the action of the supporting mechanism is smaller than the trigger stroke of the first switch 3 and the trigger stroke of the second switch 4.

Based on the above arrangement, the purpose of avoiding that the first switch 3 and the second switch 4 are triggered simultaneously can also be achieved.

Referring to fig. 9 and 10 in conjunction with fig. 10 and 12, an embodiment of the supporting mechanism formed by the engaging portion 25 and the limiting portion 14 is described as follows: referring to fig. 9, the limiting portions 14 are disposed on opposite sides of the switch base 1, and the two limiting portions 14 are symmetrical with respect to the symmetry axis; referring to fig. 10, the mating parts 25 are disposed on opposite sides of the rocker button 2, and the two mating parts 25 are symmetrical with respect to a symmetry axis, so that, after the rocker button 2 is assembled with the switch base 1, a connection line between the two mating parts 25 and a connection line between the two limiting parts 14 intersect at an axis of the symmetry axis, thereby implementing that the supporting mechanism is located between the two rotating structures 23. Referring to fig. 9, the mating portion 25 is a socket, and referring to fig. 10, the limiting portion 14 is a socket, and a skilled person will understand that the mating portion 25 may be a socket, and the limiting portion 14 is a socket. Referring to fig. 12, 14 and 15, the post is inserted into the receptacle and is clearance fit.

As set up above, because the supporting mechanism includes the mating part 25 with spacing portion 14, one of the mating part 25 with spacing portion 14 is the spliced pole, and another is the jack, the spliced pole inserts jack and clearance fit, like this, rocker button 2 with the simple structure of switch seat 1, moreover through clearance fit makes for rocker button 2 provides the activity space, and then, rocker button 2 presses smoothly.

Referring to fig. 10, 12, 14 and 15, the insert pin (shown as the mating portion 25) is a cylinder.

As set up above, because the inserted pillar is the cylinder, and the cylindrical surface is the arc surface, is convenient for the inserted pillar with the jack cooperation, and then, under the condition that satisfies preceding clearance, wane button 2 is little at the in-process resistance that presses, and wane button 2 presses smoothly.

In some embodiments, the clearance fit has a clearance d of 0.1 mm.ltoreq.d.ltoreq.0.5 mm.

As the setting is that d is more than or equal to 0.1mm and less than or equal to 0.5mm, the gap is not too large, so that the rocker key 2 is unstable in the pressing process, and the resistance is large because the gap is too small, so that the pressing is not smooth.

Referring to fig. 11 and 13 in combination with fig. 6 and 7, the embodiment of the utility model further discloses a food processor host 100. The main machine 100 for a food processing machine comprises any one of the above-mentioned key assemblies 10, a casing 20 and a motor 30. The switch base 1 is assembled to the housing 20 and the rocker button 2 is located in the opening 201. The motor 30 is assembled in the housing 20, and the motor 30 is operated when the first switch 3 is turned on or the second switch 4 is turned on.

As set forth above, the food processor host 100 has at least the beneficial effects of the key assembly 10.

Referring to fig. 6 and 7, the utility model further provides a food processing machine. The food processor comprises any one of the food processor main machine 100, a stirring blade assembly 300 and a stirring cup 200, wherein the motor 30 drives the stirring blade assembly 300 to rotate in the stirring cup 200. Of course, in fig. 6 and 7, the food processor is a meat grinder, including a cup cover 400 that covers the stirring cup 200. The main machine 100 for the food processing machine is disposed on the cup cover 400 and is located on the top of the stirring cup 200, and in other embodiments, the main machine 100 for the food processing machine may not be located on the top of the stirring cup 200.

As set forth above, the food processor has at least the beneficial effects brought by the host 100 for the food processor, and will not be described again.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A key assembly is characterized by comprising a switch seat (1), a rocker key (2), a first switch (3) and a second switch (4), wherein,

the switch seat (1) comprises a mounting cavity (101);

the first switch (3) and the second switch (4) are symmetrically arranged on the switch seat (1) and are positioned in the mounting cavity (101);

the rocker key (2) is rotationally connected with the switch seat (1) through two rotating structures (23) and comprises a first pressing part (21) and a second pressing part (22); both the two rotating structures (23) are arranged offset from the symmetry axes of the first switch and the second switch;

the first pressing part (21) is pressed, the rocker button (2) rotates in the mounting cavity (101) around a rotating structure (23) on the same side as the second pressing part (22), and the first switch (3) is triggered to be turned on; the second pressing part (22) is pressed, and the rocker button (2) rotates around a rotating structure (23) on the same side as the first pressing part (21) in the mounting cavity (101) to trigger the second switch (4) to be turned on.

2. The key assembly according to claim 1, wherein the switch housing (1) is provided with an assembly portion (11), the assembly portion (11) and the rocker key (2) being assembled by two oppositely arranged snap structures;

each snap-in structure acts as one of said turning structures (23).

3. The key assembly according to claim 2, wherein at least one of the two rotating structures (23) comprises a lateral edge (2311) and a mating surface (232), the lateral edge (2311) being arranged on the switch seat (1); the matching surface (232) is arranged on the rocker button (2), and the rocker button (2) rotates around the side edge (2311) through the matching surface (232);

or, two at least one of the rotating structures (23) comprises a rotating shaft surface (233) and a matching surface (232), wherein the rotating shaft surface (233) is an arc surface, the switch seat (1) is provided with the matching surface (232), the rocker key (2) is arranged on the matching surface (232), and the rocker key (2) rotates around the rotating shaft surface (233) through the matching surface (232).

4. A key assembly according to claim 3, wherein, in the case of each snap structure as one of the rotational structures, opposite sides of the assembly part (11) are provided with elongated through holes (12) to form elongated snap-in locations (13) at edges of the assembly part (11), the snap structure comprising the snap-in locations (13) and a hook arm (24) provided to the rocker key (2), the hook arm (24) being provided with the mating surface (232), the snap-in locations (13) being provided with the lateral edges (2311) or the rotational axis surface (233).

5. The key assembly according to claim 1, characterized in that the rocker key (2) is movably connected with the switch base (1) by a support mechanism, which is located between the two rotating structures (23);

the novel switch is characterized in that a first elastic piece (5) is arranged between the first pressing part (21) and the switch seat (1), a second elastic piece (6) is arranged between the second pressing part (22) and the switch seat (1), and under the action of the supporting mechanism, the maximum displacement of the rocker key (2) in the vertical direction is smaller than the trigger stroke of the first switch (3) and smaller than the trigger stroke of the second switch (4).

6. The key assembly according to claim 5, wherein the switch base (1) comprises two opposite limiting parts (14), the rocker key (2) comprises two opposite matching parts (25), each matching part (25) is movably connected with one limiting part (14) to form one supporting mechanism, and a connecting line of the two supporting mechanisms passes through the axle center of the symmetrical shaft so as to be positioned between the two rotating structures.

7. The key assembly according to claim 6, wherein one of the engaging portion (25) and the limiting portion (14) is a plug, the other is a socket, and the plug is inserted into the socket and is clearance-fitted.

8. The key assembly of claim 7, wherein the clearance fit has a clearance d of 0.1mm +.d +.0.5 mm; and/or, the inserted column is a cylinder.

9. A main machine for a food processor, comprising the key assembly (10), a casing (20) and a motor (30) according to any one of claims 1 to 8, wherein the switch base (1) is assembled in the casing (20), the motor (30) is assembled in the casing (20), and the motor (30) works under the condition that the first switch (3) is turned on or the second switch (4) is turned on.

10. A cooking machine, characterized by comprising the main machine (100) for the cooking machine, a stirring blade assembly (300) and a stirring cup (200) according to claim 9, wherein the motor (30) drives the stirring blade assembly (300) to rotate in the stirring cup (200).