A main machine of a food processor and a food processor

Abstract

The utility model discloses kitchen appliance technical field discloses a kind of host computer of food processor and food processor, including shell, mounting cover, button, motor being arranged in shell, connecting rod, switch assembly, connecting rod is used to promote switch assembly to move upwards to trigger position, button is equipped with the trigger muscle of trigger switch assembly, the lower side of button abuts with reset spring, switch assembly is between mounting cover and button, switch assembly includes mounting bracket, the carrier plate of being equipped with static contact, the spring piece of being equipped with dynamic contact, one end of spring piece is fixed to carrier plate, other end is suspended above static contact, dynamic contact corresponds above static contact, carrier plate is transversely fixed in the lower side of mounting bracket, mounting bracket is equipped with hollow area to make trigger muscle correspond above spring piece, mounting bracket separates carrier plate with reset spring. Reduce host computer height, avoid button electric leakage, to prevent user operation process to produce " numb hand " adverse experience, improve the security of use.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to the main unit of a food processing machine and the food processing machine itself. Background Technology

[0002] Traditional food processors consist of a blending jar and a main unit mounted above it. The main unit contains a switch linkage, a moving part, and a microswitch. A button and a transmission linkage are located on the top of the main unit. When the main unit is mounted above the blending jar, the jar lid pushes up the switch linkage, causing the moving part to move the microswitch from its initial position to the button's trigger position. When the user presses the button, it triggers the microswitch via the transmission linkage, connecting the motor to the power supply. A return spring is located below the button so that it resets when the user releases it. In this type of main unit, the microswitch is located on the motor side, and the radial dimension of the main unit is relatively large.

[0003] Another type of food processor has a top cover and a button located on top of the cover. A microswitch is mounted between the cover and the button via a movable component. Therefore, when the main unit is mounted on the blending cup, the switch linkage is lifted by the cup cover, and the top of the linkage lifts one end of the movable component, causing it to flip upwards and move the microswitch to an actuated position. When the user presses the button, the button directly triggers the microswitch. This design allows the microswitch and motor to share radial space, reducing the radial dimensions of the main unit. However, in this type of food processor, the microswitch is a rectangular box switch. Box switches are large and protrude above the movable component, making them close to the button. This results in a large vertical distance between the button and the cover, making the overall height of the main unit too high.

[0004] Furthermore, in this design, the main unit also contains a circuit board electrically connected to the micro switch. The circuit board also houses a diode and another micro switch triggered by a linkage. Typically, to facilitate the electrical connection between the micro switch and the circuit board, the circuit board is arranged in a ring around the micro switch. This results in several issues. First, because a return spring is located below the button, and the return spring is conductive, the current design places the return spring too close to the circuit board, resulting in insufficient electrical clearance and creepage. This leads to leakage at the button, causing a tingling sensation in the user's hand. If the distance between the return spring and the circuit board is set to meet the creepage distance, the radial dimension of the main unit will increase, making it difficult for users to hold with one hand. Since the button needs to move up and down, there is a risk of water ingress into the gap between the button and the mounting cover. Because the circuit board is located near the button, it is also at high risk of water damage, leading to dampness and reduced insulation, still posing a risk of leakage and potentially shortening the circuit board's lifespan. Utility Model Content

[0005] This utility model provides a main unit of a food processing machine and the food processing machine. By optimizing the internal switch components of the main unit, the problem of hand numbness caused by leakage at the buttons is further solved while achieving a miniaturized design of the main unit.

[0006] The technical solution adopted in this utility model is as follows:

[0007] This utility model provides a main unit for a food processing machine, including a housing, a mounting cover fixed to the top of the housing, a button movably mounted on the top of the mounting cover, a motor, a connecting rod, and a switch assembly disposed within the housing. The connecting rod is used to push the switch assembly upward to a trigger position. The button has a trigger rib for triggering the switch assembly, and a return spring abuts against the bottom of the button. The switch assembly is located between the mounting cover and the button. The switch assembly includes a mounting bracket, a carrier plate with a stationary contact, and a spring with a moving contact. One end of the spring is fixed to the carrier plate, and the other end is suspended above the stationary contact. The moving contact is located above the stationary contact. The carrier plate is horizontally fixed to the lower side of the mounting bracket. The mounting bracket has a hollow area so that the trigger rib corresponds to the top of the spring. The mounting bracket separates the carrier plate from the return spring.

[0008] The main unit of the food processing machine provided by this utility model includes a switch assembly comprising a mounting bracket, a carrier plate with stationary contacts, and a spring with moving contacts. The carrier plate and the spring are combined to form a micro switch. Compared with traditional box-type micro switches, the structure is simple and saves installation space along the axial and radial directions. Moreover, the carrier plate is fixed laterally, which saves space along the height direction of the main unit, thereby effectively reducing the height of the main unit. At the same time, this application places the miniaturized micro switch between the mounting cover and the button, that is, above the motor. Therefore, only a connecting rod needs to be set on the side of the motor, and there is no need to install a micro switch, thereby reducing the height and radial dimensions of the main unit, making it convenient for users to pick up or hold and operate. By horizontally fixing the carrier plate to the lower side of the mounting bracket, which has a hollowed-out area so that the trigger rib aligns above the spring contact, when the user presses the button, the trigger rib effectively passes through the hollowed-out area of ​​the mounting bracket to trigger the spring contact to move, thereby triggering the microswitch and achieving reliable operation. The carrier plate is located on the lower side of the mounting bracket, which separates the carrier plate from the reset spring. Therefore, even if water leaks at the button on the main unit, the mounting bracket can block water from the upper side of the carrier plate, improving the carrier plate's waterproof effect and preventing short circuits in the carrier plate's spring contact, diodes, and other conductive components when exposed to water. The mounting bracket extends the service life of the carrier plate. Furthermore, by separating the carrier plate from the return spring, the creepage distance between the conductive parts on the carrier plate and the return spring is extended, preventing water from conducting between the return spring and the conductive parts on the carrier plate and causing leakage current to the button. This also prevents the user from experiencing a "numbness" sensation during operation and improves the safety of use. In addition, the carrier plate is located on the lower side of the mounting bracket, close to the motor, which also saves on the length of the lead wire connecting the carrier plate and the motor, facilitates wiring, reduces wiring space, and further realizes the compactness of the main unit structure, thereby achieving a miniaturized main unit size.

[0009] In a preferred embodiment, the mounting bracket covers the fixed end of the spring.

[0010] By covering the fixed end of the spring contact with the mounting bracket, the creepage distance between the fixed end of the spring contact and the return spring is extended more directly using a simple mounting bracket structure. This not only achieves a compact mounting bracket structure but also more effectively reduces button leakage caused by the conduction between the return spring and the spring contact, thus improving safety. At the same time, the covering of the mounting bracket also prevents water from accumulating directly on the fixed end of the spring contact after the user washes the main unit.

[0011] In a preferred embodiment, the mounting bracket has a first end near the connecting rod and a second end opposite to the first end. The second end is pivotally connected to the mounting cover via a pivot shaft, which is arranged laterally. The connecting rod moves upward and drives the first end to rotate, causing the mounting bracket to rotate upward around the pivot shaft.

[0012] By pivotally connecting the second end of the mounting bracket to the mounting cover via a rotating shaft, and with the rotating shaft positioned laterally, the connecting rod drives the first end in a linkage manner, thereby causing the mounting bracket to rotate upward around the rotating shaft. This creates a lever effect, achieving the purpose of effortless driving. For example, when the user places the main unit on top of the mixing cup lid of the food processor, the lighter weight of the main unit causes the lid to lift the connecting rod, driving it upward. This eliminates the need for the user to press down on the main unit, ensuring smooth installation of the main unit. It also ensures that the connecting rod can precisely drive the mounting bracket into position, allowing the micro switch composed of the carrier plate and spring to reach the precise trigger position, thus achieving accurate triggering of the micro switch.

[0013] In a preferred embodiment, the mounting bracket includes a main body that covers the carrier plate, a plurality of extension shafts that extend vertically from the main body and are spaced apart, protruding ribs on the sides of the extension shafts, the protruding ribs forming the rotating shafts, and the mounting cover having a mating groove or mating hole that engages with the rotating shafts.

[0014] The mounting bracket utilizes multiple vertically extending shafts spaced apart from the main body. These shafts feature protruding ribs that form pivots. During assembly of the mounting bracket and cover, the gaps between adjacent shafts provide deformation space, allowing the pivots formed by the ribs to engage with mating grooves or holes. Simultaneously, the shafts spring back to their original position, maintaining a tight fit between the ribs and the grooves or holes. No additional connecting structure is needed between the mounting bracket and cover, simplifying assembly, reducing effort, and ensuring reliable connection. Furthermore, the extension shafts allow the second end of the mounting bracket to extend vertically before pivoting to the cover, while the first end can directly engage with the connecting rod. This optimizes the rotational stroke of the first end while making efficient use of the main unit's height space.

[0015] In a preferred embodiment, the mounting bracket is fixedly connected to or integrally formed with the connecting rod, so that the switch assembly moves together with the connecting rod to the trigger position, and the mounting bracket is suspended relative to the bottom of the mounting cover.

[0016] By fixing or molding the mounting bracket and connecting rod together, the structure is integrated, saving assembly steps and time and improving assembly efficiency. At the same time, the micro switch moves together with the overall driving component formed by the connecting rod and mounting bracket, ensuring reliable and sensitive driving and preventing failure. The reset of the micro switch is synchronized with the overall driving component of the connecting rod, enabling flexible switching of states.

[0017] In a preferred embodiment, the mounting cover has a base plate spaced between the carrier plate and the motor, the base plate having a limiting hole through which a connecting rod passes, the connecting rod being movable downwards to overlap the top of the limiting hole, and the mounting bracket being suspended above the base plate.

[0018] The mounting cover's base plate isolates the motor and carrier plate, preventing carbon dust from splashing onto the carrier plate during motor operation, thus preventing short circuits or signal interference on the carrier plate and ensuring stable operation of the main unit. Limiting holes in the base plate guide the vertical movement of the connecting rod, preventing it from swaying and allowing for smooth movement. The connecting rod can move downwards to overlap the top of the limiting holes, while simultaneously allowing the mounting bracket to suspend above the base plate. Therefore, the limiting holes also provide axial restraint for the connecting rod, preventing it from detaching from the main unit. The mounting bracket's suspension above the base plate ensures an effective safety distance between the carrier plate below the mounting bracket and the motor, preventing damage to the carrier plate and base plate after the connecting rod resets, thus improving safety during use.

[0019] In a preferred embodiment, the mounting cover has a base plate spaced between the carrier plate and the motor. The base plate is provided with a limiting hole for the connecting rod to pass through and a wire passage hole located on the opposite side of the limiting hole. One end of the mounting bracket is connected to the connecting rod, and the other end is suspended. The suspended end of the mounting bracket is located between the limiting hole and the wire passage hole.

[0020] By setting a limiting hole, such as a connecting rod, the top of the connecting rod is allowed to engage with the mounting bracket, while also guiding the up-and-down movement of the connecting rod, thus enabling smooth movement of the connecting rod. By setting a wire passage hole, wires are used for threading, such as the lead wires between the carrier plate and the motor, facilitating wiring and avoiding excessively long and tangled wires. At the same time, the wire passage hole is located on the opposite side of the limiting hole, and the suspended end of the mounting bracket is located between the limiting hole and the wire passage hole, preventing the movement of the mounting bracket from interfering with the lead wires. Furthermore, the mounting bracket will not extend beyond the wire passage hole, thereby improving the stable suspension effect of the mounting bracket and preventing the center of gravity of the overall driving component formed by the connecting rod and the mounting bracket from being too far away from the connecting rod, achieving effortless driving of the connecting rod, preventing the connecting rod from tilting, and ensuring smooth movement.

[0021] In a preferred embodiment, the linkage includes a body section located on the side of the motor, a transition section extending from the top of the body section toward the motor shaft, and a trigger section connected to the top of the transition section. The trigger section is closer to the motor shaft than the body section. The lower end of the body section extends out of the housing, and the upper end of the trigger section drives the mounting bracket to move upward.

[0022] By configuring the linkage into a main body section, a transition section, and a trigger section, and utilizing the transition section to extend towards the motor shaft, the trigger section can be positioned close to the main unit shaft. Correspondingly, the spring and carrier plate can be arranged at the main unit shaft, allowing the user to reliably press the spring at different points on the button, resulting in flexible and effortless operation. Simultaneously, the transition section optimizes the linkage's center of gravity position when moving the safety bracket as a whole, overcoming off-center loads caused by the bracket's own weight or external resistance, reducing vibration or offset during movement, ultimately achieving synchronous, smooth, and precise displacement control of the linkage, safety bracket, carrier plate, and spring. The trigger section drives the mounting bracket upwards. The trigger section height is rationally set based on the trigger stroke between the spring and carrier plate and the main unit height, ensuring sensitive and effective triggering of the switch assembly and efficient use of the main unit's height space. Furthermore, the main body section is located to the side of the motor, making efficient use of the radial space between the motor and the main unit housing, improving space utilization, resulting in a compact structure and a smaller main unit.

[0023] In a preferred embodiment, the transition section is a transversely arranged transition plate.

[0024] The transition plate connects the main body section and the trigger section. The transition plate itself has high strength, which strengthens the connection between the main body section and the trigger section. This allows the stress to be distributed during the process of the connecting rod driving the switch assembly upward as a whole, reducing the risk of breakage in various parts of the connecting rod, improving structural reliability, and thus reliably overcoming the off-center load problem that occurs when the connecting rod as a whole drives the switch assembly upward, achieving labor-saving and flexible driving.

[0025] In a preferred embodiment, a reinforcing rib is provided at the connection between the trigger segment and the transition segment to connect the two.

[0026] By providing a reinforcing rib connecting the trigger section and the transition section, the reinforcing rib further disperses the stress at the connection between the trigger section and the transition section, reliably preventing the connecting rod from breaking and ensuring a smooth driving effect between the connecting rod and the switching assembly.

[0027] In a preferred embodiment, the bottom end of the return spring abuts against the mounting bracket, which isolates the return spring and the carrier plate vertically; or, the mounting cover has a base plate spaced between the carrier plate and the motor, the bottom end of the return spring abuts against the base plate, and the return spring is isolated radially outward from the carrier plate by the mounting bracket.

[0028] Whether using mounting brackets to isolate the return spring and the carrier plate vertically or radially, the creepage distance between the return spring and the carrier plate can be extended, effectively preventing button leakage. By abutting the bottom end of the return spring against the mounting bracket, the mounting bracket forms an insulating barrier along the axial direction of the host, preventing the return spring from directly contacting the carrier plate due to vibration or deformation, blocking potential arc discharge or leakage current paths, thus ensuring high safety. By abutting the return spring against the base plate, the axial space occupied by the return spring and the switch assembly is shared, further reducing the height of the host.

[0029] In a preferred embodiment, a buckle is provided at the bottom of the mounting bracket, and the carrier plate is fixed to the mounting bracket by the buckle.

[0030] The carrier plate and mounting bracket are fixed by snap-fit, eliminating the need for additional fasteners, thus saving fixing costs and assembly time. At the same time, the snap-fit ​​is made of insulating material, which can ensure the insulation between the return spring and the carrier plate, meeting safety requirements.

[0031] In a preferred embodiment, the carrier board is a PCB board or a metal sheet.

[0032] The carrier board uses a PCB board, which facilitates integration. The PCB board can not only directly solder and fix electrical components such as diodes, but also integrate connecting wire harnesses, resulting in a high degree of integration. Furthermore, it enables mechanized assembly of the PCB board, saving on manual assembly costs. Using a metal sheet as the carrier board results in a thinner, more compact size and lower structural cost, which helps to make better use of the internal space of the host and achieve a compact host structure.

[0033] In a preferred embodiment, the mounting bracket has a first end near the connecting rod and a second end opposite to the first end, and the upper end of the mounting bracket is provided with a strip-shaped rib extending from the first end to the second end; multiple buttons are provided, forming a mating seam between adjacent buttons, the mounting bracket is positioned below the mating seam and the strip-shaped rib is provided corresponding to the edge of the mating seam.

[0034] By providing a strip-shaped rib extending from the first end to the second end at the upper end of the mounting bracket, the structural strength of the mounting bracket is enhanced, enabling the mounting bracket to reliably drive the carrier plate. The mounting bracket is positioned below the mating joint, and the strip-shaped rib is positioned corresponding to the edge of the mating joint. The mounting bracket directly blocks water flow towards the carrier plate, and the strip-shaped rib prevents water flow from spreading along the mounting bracket, thereby improving the waterproof effect of the main unit, preventing water flow towards the carrier plate, and preventing short circuits and leakage of the main unit.

[0035] This utility model also provides a food processing machine, comprising a main unit, a cup body, and a stirring blade disposed in the cup body as described in any of the preceding items. The main unit is assembled into the cup body so that the connecting rod is forced to push the switch assembly upward to the trigger position. When the button is pressed down, the trigger rib presses down the spring sheet until the moving contact closes and conducts with the stationary contact of the carrier plate, so that the main unit drives the stirring blade to work.

[0036] In this application, by applying a safe switching mechanism to a food processor, such as a meat grinder, which includes a mixing blade with a cup body, it is beneficial to ensure that the circuit is turned on only when the user presses the button after the cup body and the main unit are assembled in place. This allows the main unit to drive the mixing blade to rotate and crush the food in the cup body, making the operation of the whole machine safer. Attached Figure Description

[0037] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0038] Figure 1 An exploded view of the host computer provided in Embodiment 1 of this utility model;

[0039] Figure 2 This is a schematic diagram of the structure of the food processing machine provided in Embodiment 1 of this utility model;

[0040] Figure 3 This is a schematic diagram showing the cooperation between the switch assembly and the connecting rod provided in Embodiment 1 of this utility model;

[0041] Figure 4 A partial structural schematic diagram of the food processing machine provided in Embodiment 1 of this utility model;

[0042] Figure 5 This is a structural diagram of the host computer in the microswitch triggered state provided in Embodiment 1 of this utility model;

[0043] Figure 6 This is a structural diagram of the host computer in Embodiment 1 of the present invention when the switching assembly reaches the trigger position;

[0044] Figure 7 A cross-sectional view of the host provided in Embodiment 2 of this utility model;

[0045] Figure 8 This is a schematic diagram showing the cooperation between the switch assembly and the connecting rod provided in Embodiment 2 of this utility model;

[0046] Figure 9 This is a partial structural schematic diagram of the food processing machine provided in Embodiment 2 of this utility model;

[0047] Figure 10 This is an exploded view of the switch assembly provided in Embodiment 3 of this utility model.

[0048] List of components and reference numerals:

[0049] 10. Main unit; 11. Outer shell; 12. Mounting cover; 121. Base plate; 122. Limiting hole; 123. Mating groove; 124. Wire hole; 13. Button; 14. Motor; 15. Connecting rod; 151. Body section; 152. Transition section; 153. Trigger section; 154. Reinforcing rib; 20. Switch assembly; 21. Mounting bracket; 211. Hollowed-out area; 212. Buckle; 213. Strip rib; 214. Main body; 215. Extension shaft; 216. Rotating shaft; 217. Surrounding rib; 22. Micro switch; 221. Carrier plate; 222. Spring; 23. Diode; 30. Return spring; 40. Cup body; 50. Cup lid; 60. Stirring blade. Detailed Implementation

[0050] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0051] Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0052] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] like Figure 1-6 As shown, in one embodiment, this utility model provides a main unit 10 of a food processing machine, including a housing 11, a mounting cover 12 fixed to the top of the housing 11, a button 13 movably mounted on the top of the mounting cover 12, a motor 14 disposed inside the housing 11, a connecting rod 15, and a switch assembly 20. The connecting rod 15 is used to push the switch assembly 20 upward to the trigger position. The button 13 is provided with a trigger rib to trigger the switch assembly 20. A return spring 30 abuts against the bottom of the button 13. The switch assembly 20 is located between the mounting cover 12 and the button. Between 13, the switch assembly 20 includes a mounting bracket 21 and a micro switch 22. The micro switch 22 includes a carrier plate 221 with a stationary contact and a spring 222 with a moving contact. One end of the spring 222 is fixed to the carrier plate 221 and the other end is suspended above the stationary contact. The moving contact is located above the stationary contact. The carrier plate 221 is horizontally fixed to the lower side of the mounting bracket 21. The mounting bracket 21 has a hollow area 211 so that the trigger rib is located above the spring 222. The mounting bracket 21 separates the carrier plate 221 from the return spring 30.

[0056] The food processor provided by this utility model can be a meat grinder, dough mixer, etc. Preferably, the food processor also includes a cup body 40 and a stirring blade 60 disposed in the cup body. The main unit 10 is assembled to the cup body 40, so that the connecting rod 15 is forced to push the switch assembly upward to the trigger position. When the button 13 is pressed down, the trigger rib presses down the spring 222 until the moving contact contacts the stationary contact of the carrier plate to close and conduct, so that the main unit 10 drives the stirring blade 60 to work. By applying a safe switching mechanism to a food processor with a stirring blade that includes a cup body, such as a meat grinder, it is beneficial to ensure that the circuit is conducted only when the cup body and the main unit are assembled in place, and the user presses the button. This allows the main unit to drive the stirring blade to rotate in the cup body to crush the food, making the operation of the whole machine safer.

[0057] In a preferred embodiment, the main unit 10 and the cup lid 50 of the food processing machine are separate structures. The main unit 10 is assembled to the cup body 40 through the cup lid, that is, the main unit 10 is installed on the top of the cup lid 50. When the user uses the machine, the main unit 10 and the cup lid 50 are installed in place, and the cup lid 50 is provided with ribs that push the connecting rod 15 upward, so that the connecting rod 15 pushes the switch assembly 20 upward to the trigger position.

[0058] Understandably, in another preferred embodiment, the cup lid is part of the main unit, that is, the cup lid is fixed to the main unit. In this case, when the main unit and the cup body are assembled, the connecting rod 15 can be pushed upward by the cup body, so that the connecting rod 15 pushes the switch assembly 20 upward to the trigger position.

[0059] Of course, the food processor of this application can also be applied to a hand blender. The main body and the blade assembly of the hand blender are set separately. Only when the designated blade assembly is assembled with the main body, the blade assembly pushes the connecting rod 15 upward, so that the connecting rod 15 pushes the switch assembly 20 upward to the trigger position.

[0060] The main unit 10 of the food processing machine provided by this utility model includes a switch assembly 20 comprising a mounting bracket 21, a carrier plate 221 with stationary contacts, and a spring piece 222 with moving contacts. The carrier plate 221 and the spring piece 222 are combined to form a micro switch 22. Compared with traditional box-type micro switches, the structure is simple and the installation space is saved. Moreover, the carrier plate 221 is fixed laterally, which saves space along the height direction of the main unit 10, thereby effectively reducing the height of the main unit 10. By horizontally fixing the carrier plate 221 to the lower side of the mounting bracket 21, and the mounting bracket 21 having a hollow area 211 so that the trigger rib corresponds to the upper part of the spring piece 222, when the user presses the button 13, the trigger rib effectively passes through the hollow area 211 of the mounting bracket 21 to trigger the spring piece 222 to move, triggering the micro switch 22, thus achieving reliable operation. The carrier plate 221 is located on the lower side of the mounting bracket 21, and the mounting bracket 21 separates the carrier plate 221 from the reset spring 30. Therefore, even if water leaks at the button 13 of the main unit 10, the mounting bracket 21 can block the water on the upper side of the carrier plate 221, improving the waterproof effect of the carrier plate 221 and preventing short circuits in the conductive components such as the spring piece 222 and diode 23 of the carrier plate 221 when exposed to water. The mounting bracket 21 extends the service life of the carrier plate 221. Furthermore, the mounting bracket 21 separates the carrier plate 221 from the reset spring 30, extending the creepage distance between the conductive parts on the carrier plate 221 and the reset spring 30. This prevents water from conducting between the reset spring 30 and the conductive parts on the carrier plate 221, thus avoiding leakage of the button 13 and preventing the user from experiencing a "numbness" during operation, thereby improving safety. In addition, the carrier plate 221 is located on the lower side of the mounting bracket 21, close to the motor 14, which also saves the length of the lead wire connecting the carrier plate 221 and the motor 14, facilitating wiring, reducing wiring space, and further realizing the compact design of the main unit 10 structure, achieving miniaturization of the main unit 10.

[0061] It should be noted that the internal supports, connecting rods, and other structures of traditional food processing machines (such as meat grinders) are made of plastic. The mounting bracket provided by this utility model is made of plastic, so the mounting bracket itself has an insulating function. Thus, when the mounting bracket separates the carrier plate from the return spring, it effectively extends the creepage distance between the conductive parts on the carrier plate and the return spring, solving the problem of tingling sensation caused by leakage at the button.

[0062] Additionally, it should be explained that the aforementioned carrier plate 221 being horizontally fixed to the lower side of the mounting bracket refers to the carrier plate being horizontally set when it is in its initial position, i.e., when the main unit is not placed on the cup lid. This includes the carrier plate being horizontally set and the carrier plate being set with an angle of inclination of no more than 45° relative to the horizontal plane.

[0063] The mounting bracket 21 provided by this utility model can be adapted to the radial dimension of the carrier plate 221 to cover the entire carrier plate 221. Preferably, the mounting bracket 21 covers the fixed end of the spring contact 222. By covering the end of the spring contact 222 that is fixed to the carrier plate 221 with the mounting bracket 21, the creepage distance between the fixed end of the spring contact 222 and the return spring 30 is extended more directly using the simple structure of the mounting bracket 21. This not only achieves a compact structure of the mounting bracket 21, but also more effectively reduces the leakage of the button 13 caused by the conduction between the return spring 30 and the spring contact 222, thus improving the safety of use.

[0064] This utility model does not limit the specific structure and movement of the switch assembly 20, for example:

[0065] Example 1, as Figure 1-6 As shown, the mounting bracket 21 has a first end near the connecting rod 15 and a second end opposite to the first end. The second end is pivotally connected to the mounting cover 12 via a rotating shaft 216. The rotating shaft 216 is arranged laterally. The connecting rod 15 moves upward and drives the first end to move in conjunction, so that the mounting bracket 21 rotates upward around the rotating shaft 216.

[0066] Specifically, such as Figure 1 , 3 As shown, the top of the connecting rod 15 is located below the first end of the mounting bracket 21. When the connecting rod 15 moves upward, it pushes the first end of the mounting bracket 21 upward, causing the mounting bracket 21 to rotate upward around the pivot 216.

[0067] Of course, in other embodiments, the top end of the connecting rod 15 is provided with a lifting crossbar extending above the mounting bracket 21. The lifting crossbar is fixedly connected to the first end of the mounting bracket 21. When moving upward, the first end of the mounting bracket 21 is lifted upward, causing the mounting bracket 21 to rotate upward around the pivot 216.

[0068] By pivotally connecting the second end of the mounting bracket 21 to the mounting cover 12 via the pivot 216, and with the pivot 216 being horizontally positioned, the connecting rod 15 drives the first end to rotate the mounting bracket 21 upward around the pivot 216, thereby creating a lever effect and achieving the purpose of effortless driving. For example, when the user places the main unit 10 on top of the mixing cup lid 50 of the food processor, the lighter weight of the main unit 10 will cause the lid 50 to lift the connecting rod 15 and drive it upward, eliminating the need for the user to press down on the main unit 10. This ensures smooth installation of the main unit 10 and also guarantees that the connecting rod 15 can accurately drive the mounting bracket 21 into position, thereby allowing the micro switch 22, composed of the carrier plate 221 and the spring 222, to reach the precise trigger position and achieve accurate triggering of the micro switch 22.

[0069] Optionally, in this embodiment, as Figure 3 As shown, the mounting bracket 21 includes a main body 214 that covers the carrier plate 221, and a plurality of extension shafts 215 extending vertically from the main body 214 and spaced apart, for example, two extension shafts 215. The sides of the two extension shafts 215 are respectively provided with protruding ribs, and the two protruding ribs are symmetrically arranged, forming a rotating shaft 216. Figure 4 The mounting cover 12 is provided with a mating groove 123 that is inserted into the rotating shaft 216. Specifically, the mounting cover is provided with a base plate, and the base plate is provided with an upwardly extending baffle. The baffle is provided with a mating hole or mating groove that is mated with the rotating shaft.

[0070] Of course, mating holes or grooves that mate with the rotating shaft can also be directly set on the inner wall of the mounting cover.

[0071] The mounting bracket 21 is provided with multiple extension shafts 215 extending vertically from the main body 214 and arranged at intervals. The extension shafts 215 have protruding ribs forming a rotating shaft 216. When assembling the mounting bracket 21 with the mounting cover 12, the gaps between adjacent extension shafts 215 provide deformation space for the extension shafts 215, allowing the rotating shaft 216 formed by the ribs to engage with the mating groove 123 or mating hole. Simultaneously, the extension shafts 215 spring back to maintain a tight fit between the ribs and the mating groove 123 or mating hole. No additional connecting structure is needed between the mounting bracket 21 and the mounting cover 12, making assembly simpler, less strenuous, and ensuring reliable connection. Furthermore, due to the extension shafts 215, the second end of the mounting bracket 21 is vertically extended before pivoting to the mounting cover 12, and the first end of the mounting bracket 21 can directly engage with the connecting rod 15. This optimizes the rotational stroke of the first end while making efficient use of the height space of the main unit 10.

[0072] Understandably, the aforementioned extension shafts can also be set to three, with ribs provided on the outer sides of the two extension shafts furthest apart to form a pivot.

[0073] It is understood that in other embodiments of this utility model, the pivoting method of the mounting bracket 21 and the mounting cover 12 may also be selected as follows: the mounting bracket 21 includes a main body 214 of a shielding plate 221, and protruding ribs are directly provided on both sides of the main body 214 to form a pivot 216; or, the second end of the mounting bracket 21 is provided with a first shaft hole, the mounting cover 12 is provided with a second shaft hole opposite to the first shaft hole, and the pivot 216 passes through the first shaft hole and the second shaft hole to pivotally connect the mounting bracket 21 and the mounting cover 12.

[0074] In this embodiment, preferably, the connecting rod 15 includes a body section 151 located on the side of the motor 14, a transition section 152 extending from the top of the body section 151 toward the axis of the motor 14, and a trigger section 153 connected to the top of the transition section 152. The trigger section 153 is closer to the axis of the motor 14 than the body section 151. The lower end of the body section 151 extends out of the housing 11, and the upper end of the trigger section 153 drives the mounting bracket 21 to move upward. Specifically, in this embodiment, as... Figure 6 As shown, the upper end of the trigger segment 153 drives the mounting bracket 21 to rotate upwards and tilt, so that the switch assembly is in the trigger position. Of course, the linkage structure used in this embodiment can also be applied to other embodiments of this utility model.

[0075] By configuring the connecting rod 15 into a main body section 151, a transition section 152, and a trigger section 153, and utilizing the extension of the transition section 152 toward the axis of the motor 14, the trigger section 153 can be close to the axis of the main unit 10. Correspondingly, the spring piece 222 and the carrier plate 221 can be arranged on the axis of the main unit 10, so that the user can reliably press down the spring piece 222 when pressing different parts of the button 13, making the user's operation flexible and effortless. At the same time, the transition section 152 optimizes the center of gravity position of the connecting rod 15 when it drives the safety bracket to move as a whole, which can overcome the off-center load caused by the self-weight of the mounting bracket 21 or external resistance, reduce vibration or offset during the movement, and finally achieve synchronous, smooth and precise displacement control of the connecting rod 15, the safety bracket, the carrier plate 221 and the spring piece 222. The trigger segment 153 drives the mounting bracket 21 to move upward. Based on the trigger stroke between the spring 222 and the carrier plate 221, and considering the height of the main unit 10, the height of the trigger segment 153 is rationally set to achieve sensitive and effective triggering of the switch assembly 20 and to make reasonable use of the height space of the main unit 10. Simultaneously, the body segment 151 is located to the side of the motor 14, making reasonable use of the radial space between the motor 14 and the housing 11 of the main unit 10, improving space utilization, resulting in a compact structure and miniaturization of the main unit 10.

[0076] More preferably, the transition section 152 is a transversely arranged transition plate. A reinforcing rib 154 is provided at the connection between the trigger section 153 and the transition section 152 to connect the two.

[0077] A transition plate is used to connect the main body section 151 and the trigger section 153. The transition plate itself has high strength, which strengthens the connection between the main body section 151 and the trigger section 153. This allows stress to be distributed during the upward driving of the switch assembly 20 by the connecting rod 15 as a whole, reducing the risk of breakage at various parts of the connecting rod 15, improving structural reliability, and thus reliably overcoming the off-center load problem that occurs when the connecting rod 15 drives the switch assembly 20 upward, achieving effortless and flexible driving. By setting a reinforcing rib 154 at the connection between the trigger section 153 and the transition section 152, the reinforcing rib 154 further distributes the stress at the connection between the trigger section 153 and the transition section 152, reliably preventing the connecting rod 15 from breaking and ensuring a smooth driving effect between the connecting rod 15 and the switch assembly 20.

[0078] In this embodiment, as Figure 2 As shown, the mounting cover 12 has a base plate 121 spaced between the carrier plate 221 and the motor 14. The base plate 121 is provided with a limiting hole 122 for the connecting rod 15 to pass through. The connecting rod 15 can move downwards to overlap the top of the limiting hole 122. More specifically, the connecting rod 15 overlaps the top of the limiting hole 122 through the aforementioned transition section 152. Of course, in practice, a boss can be provided on the side of the connecting rod 15 to overlap the top of the limiting hole 122.

[0079] The base plate 121 of the mounting cover 12 isolates the motor 14 from the carrier plate 221, preventing carbon powder from accumulating on the carrier plate 221 during motor 14 operation, thus preventing short circuits or signal interference on the carrier plate 221 and ensuring stable operation of the main unit 10. A limiting hole 122 is provided on the base plate 121 to guide the vertical movement of the connecting rod 15, preventing it from swaying and ensuring smooth movement. The connecting rod 15 can move downwards to overlap the top of the limiting hole 122, which also allows for axial limiting of the connecting rod 15, preventing it from detaching from the main unit 10.

[0080] In this embodiment, combined with Figure 3 , 4 As shown, the bottom end of the return spring 30 abuts against the mounting bracket 21, which isolates the return spring 30 from the carrier plate 221 vertically. More preferably, an annular rib protrudes above the mounting bracket 21, surrounding the outer side of the hollow area of ​​the mounting bracket. The return spring 30 is sleeved on the outer circumference of the annular rib and abuts axially against the mounting bracket. This allows the annular rib to radially limit the bottom end of the return spring 30. Of course, in practice, the bottom end of the return spring can also be radially limited to the inner circumference of the annular rib.

[0081] Of course, the method of isolating the reset spring 30 and the carrier plate 221 by using the mounting bracket 21 in this utility model is not limited to the one mentioned above. In other embodiments, the mounting cover 12 has a base plate 121 spaced between the carrier plate 221 and the motor 14, the bottom end of the reset spring 30 abuts against the base plate 121, and the reset spring 30 is isolated by the mounting bracket 21 on the radially outer side of the carrier plate 221.

[0082] Whether the reset spring 30 and the carrier plate 221 are isolated vertically or radially using the mounting bracket 21, the creepage distance between the reset spring 30 and the carrier plate 221 can be extended, effectively preventing leakage of the button 13. By abutting the bottom end of the reset spring 30 against the mounting bracket 21, the mounting bracket 21 forms an insulating barrier along the axial direction of the host 10, preventing the reset spring 30 from directly contacting the carrier plate 221 due to vibration or deformation, blocking potential arc discharge or leakage current paths, and ensuring high safety.

[0083] In this embodiment, as Figure 3 , 5 As shown, a clip 212 is provided at the bottom of the mounting bracket 21, and the carrier plate 221 is fixed to the mounting bracket 21 via the clip 212. The carrier plate 221 is a PCB board. The switch assembly 20 also includes a diode 23, which is fixed to the PCB board by soldering.

[0084] The carrier plate 221 and the mounting bracket 21 are fixed by the snap fastener 212, which eliminates the need for additional fasteners, saving fixing costs and assembly time. At the same time, the snap fastener 212 is made of insulating material, which can ensure the insulation between the return spring 30 and the carrier plate 221, meeting safety requirements.

[0085] The carrier board 221 uses a PCB board, which is conducive to integration. The PCB board can not only directly solder and fix electrical components such as diode 23, but also integrate connecting wire harnesses, resulting in a high degree of integration. Furthermore, it enables mechanized assembly of the PCB board, saving on manual assembly costs.

[0086] In this embodiment, as Figure 4 As shown, the mounting bracket 21 has a first end near the connecting rod 15 and a second end opposite to the first end. The upper end of the mounting bracket 21 is provided with a strip rib 213 extending from the first end to the second end. In this embodiment, there are two buttons 13 to realize different speed control of the high speed and low speed of the host 10. A mating seam is formed between adjacent buttons 13. The mounting bracket 21 is positioned below the mating seam and the strip rib 213 is set corresponding to the edge of the mating seam.

[0087] By providing a strip rib 213 extending from the first end to the second end at the upper end of the mounting bracket 21, the structural strength of the mounting bracket 21 is enhanced, enabling the mounting bracket 21 to reliably drive the carrier plate 221 to move. The mounting bracket 21 is positioned below the mating joint, and the strip rib 213 is positioned corresponding to the edge of the mating joint. The mounting bracket 21 directly blocks water flow towards the carrier plate 221, while the strip rib 213 prevents water flow from spreading out along the mounting bracket 21, thereby improving the waterproof effect of the main unit 10, preventing water flow towards the carrier plate 221, and preventing short circuits in the carrier plate 221 and leakage of the main unit 10.

[0088] It is understood that the host 10 provided by this utility model can actually adopt a button 13, and a corresponding micro switch 22 is set, including a spring 222 and a carrier plate 221 with a stationary contact.

[0089] Example 2, as Figure 7-9 As shown, this embodiment differs from Embodiment 1 in that the mounting bracket 21 and the connecting rod 15 are integrally formed so that the switch assembly 20 moves together with the connecting rod 15 to the trigger position, and the mounting bracket 21 is suspended relative to the bottom of the mounting cover 12.

[0090] Specifically, in this embodiment, the mounting bracket 21 and the connecting rod 15 are integrally formed by injection molding.

[0091] Of course, in practice, in other embodiments, the mounting bracket 21 and the connecting rod 15 are set separately and fixedly connected as one unit by means of screws, adhesives, buckles, etc.

[0092] By fixing the mounting bracket 21 and the connecting rod 15 together or molding them as a single piece, the structure is integrated, saving assembly steps and time and improving assembly efficiency. At the same time, the switch assembly 20 moves together with the connecting rod 15, ensuring reliable and sensitive drive and preventing failure. The reset of the switch assembly 20 is synchronized with the connecting rod 15, enabling flexible switching of states.

[0093] In this embodiment, as Figure 9 As shown, the mounting cover 12 has a base plate 121 spaced between the carrier plate 221 and the motor 14. The base plate 121 is provided with a limiting hole 122 for the connecting rod 15 to pass through. The connecting rod 15 can move downward to overlap the top of the limiting hole 122, and the mounting bracket 21 is suspended above the base plate 121. More specifically, in this embodiment, the side wall of the connecting rod 15 can be provided with a boss to overlap the top of the limiting hole 122, or the connecting rod 15 can overlap the top of the limiting hole 122 using the structure in Embodiment 1 with a transition section 152.

[0094] The base plate 121 of the mounting cover 12 isolates the motor 14 from the carrier plate 221, preventing carbon powder from the motor 14 from splashing onto the carrier plate 221 during operation, thus preventing short circuits or signal interference on the carrier plate 221 and ensuring stable operation of the main unit 10. A limiting hole 122 is provided in the base plate 121 to guide the vertical movement of the connecting rod 15, preventing it from swaying and allowing for smooth movement. The connecting rod 15 can move downwards to overlap the top of the limiting hole 122, while simultaneously allowing the mounting bracket 21 to suspend above the base plate 121. Therefore, the limiting hole 122 also serves to axially limit the connecting rod 15, preventing it from detaching downwards from the main unit 10. The mounting bracket 21 is suspended above the base plate 121, thereby ensuring an effective safe distance between the carrier plate 221 on the lower side of the mounting bracket 21 and the motor 14, and preventing the carrier plate 221 and the base plate 121 from being damaged by collision after the connecting rod 15 is reset, thus improving the safety of use.

[0095] In this embodiment, as Figure 9 As shown, the mounting cover 12 has a base plate spaced between the carrier plate and the motor. The base plate is provided with a limiting hole 122 for the connecting rod 15 to pass through and a wire passage hole 124 located on the opposite side of the limiting hole. One end of the mounting bracket 21 is connected to the connecting rod 15, and the other end is suspended above the base plate. The suspended end of the mounting bracket 21 is located between the limiting hole 122 and the wire passage hole 124.

[0096] By setting a limiting hole, such as a connecting rod, the top of the connecting rod is allowed to cooperate with the mounting bracket 21, while also guiding the up and down movement of the connecting rod, thus achieving smooth movement of the connecting rod. By setting a wire passage hole 124, wires are used for passing through, such as the lead wire between the carrier plate and the motor, which facilitates wiring and avoids long and tangled wires. At the same time, the wire passage hole 124 is located on the opposite side of the limiting hole, and the suspended end of the mounting bracket 21 is between the limiting hole and the wire passage hole 124, preventing the movement of the mounting bracket 21 from interfering with the lead wire. In addition, the mounting bracket 21 will not extend beyond the wire passage hole 124, thereby improving the stable suspension effect of the mounting bracket 21, preventing the center of gravity of the overall driving component formed by the connecting rod and the mounting bracket 21 from being too far away from the connecting rod, achieving effortless driving of the connecting rod, preventing the connecting rod from tilting, and ensuring smooth movement.

[0097] Another difference from Embodiment 1 is that in this embodiment, the bottom end of the reset spring 30 abuts against the base plate 121, and the reset spring 30 is isolated radially outside the carrier plate 221 by the mounting bracket 21.

[0098] By abutting the reset spring 30 against the base plate 121, the reset spring 30 and the axial space occupied by the switch assembly 20 are shared, further reducing the height of the main unit 10.

[0099] More preferably, a reinforcing rib is provided on the top of the mounting bracket 21 to further vertically separate the reset spring and the carrier plate 221.

[0100] Example 3, as Figure 10 As shown, the difference between this embodiment and embodiment 1 is that the carrier plate 221 in the switch assembly 20 is made of metal sheet.

[0101] It is understandable that using a metal sheet as the carrier plate 221 results in a thinner, smaller size, lower structural cost, and makes better use of the internal space of the host 10, thus achieving a compact structure for the host 10.

[0102] Preferably, the switch assembly 20 further includes a diode 23, which is electrically connected to a metal plate via leads.

[0103] Preferably, in this embodiment, the mounting bracket not only blocks the fixed end of the spring contact but also blocks the top of the diode to protect it.

[0104] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0105] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0106] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A main unit of a food processing machine, comprising a housing, a mounting cover fixed to the top of the housing, a button movably mounted on the top of the mounting cover, a motor, a connecting rod, and a switch assembly disposed within the housing, wherein the connecting rod is used to push the switch assembly upward to a trigger position, the button is provided with a trigger rib for triggering the switch assembly, and a return spring abuts against the lower part of the button, characterized in that, The switch assembly is located between the mounting cover and the button. The switch assembly includes a mounting bracket, a carrier plate with a stationary contact, and a spring with a moving contact. One end of the spring is fixed to the carrier plate, and the other end is suspended above the stationary contact. The moving contact is located above the stationary contact. The carrier plate is horizontally fixed to the lower side of the mounting bracket. The mounting bracket has a hollow area so that the trigger rib is located above the spring. The mounting bracket separates the carrier plate from the reset spring.

2. The main unit of a food processing machine according to claim 1, characterized in that, The mounting bracket covers the fixed end of the spring piece.

3. The main unit of a food processing machine according to claim 1, characterized in that, The mounting bracket has a first end near the connecting rod and a second end opposite to the first end. The second end is pivotally connected to the mounting cover via a rotating shaft. The rotating shaft is arranged laterally. The connecting rod moves upward and drives the first end to rotate together, causing the mounting bracket to rotate upward around the rotating shaft.

4. The main unit of a food processing machine according to claim 3, characterized in that, The mounting bracket includes a main body that covers the carrier plate, a plurality of extension shafts that extend vertically from the main body and are spaced apart, protruding ribs on the sides of the extension shafts, the protruding ribs forming the rotating shafts, and the mounting cover having a mating groove or mating hole that engages with the rotating shafts.

5. The main unit of a food processing machine according to claim 1, characterized in that, The mounting bracket is fixedly connected to or integrally formed with the connecting rod so that the switch assembly moves together with the connecting rod to the trigger position, and the mounting bracket is suspended relative to the bottom of the mounting cover.

6. The main unit of a food processing machine according to claim 5, characterized in that, The mounting cover has a base plate spaced between the carrier plate and the motor. The base plate is provided with a limiting hole for the connecting rod to pass through. The connecting rod can be moved downward to overlap the top of the limiting hole, and the mounting bracket is suspended above the base plate. Alternatively, the mounting cover has a base plate spaced between the carrier plate and the motor. The base plate is provided with a limiting hole for the connecting rod to pass through and a wire passage hole located on the opposite side of the limiting hole. One end of the mounting bracket is connected to the connecting rod, and the other end is suspended. The suspended end of the mounting bracket is located between the limiting hole and the wire passage hole.

7. The main unit of a food processing machine according to claim 1, characterized in that, The connecting rod includes a body section located on the side of the motor, a transition section extending from the top of the body section toward the motor shaft, and a trigger section connected to the top of the transition section. The trigger section is closer to the motor shaft than the body section. The lower end of the body section extends out of the housing, and the upper end of the trigger section drives the mounting bracket to move upward.

8. The main unit of a food processing machine according to claim 7, characterized in that, The transition section is a horizontally arranged transition plate; Alternatively, a reinforcing rib may be provided at the connection between the trigger segment and the transition segment to connect the two.

9. The main unit of a food processing machine according to claim 1, characterized in that, The bottom end of the reset spring abuts against the mounting bracket, and the mounting bracket isolates the reset spring from the carrier plate vertically. Alternatively, the mounting cover has a base plate spaced between the carrier plate and the motor, the bottom end of the return spring abutting against the base plate, and the return spring being isolated radially outward of the carrier plate by the mounting bracket.

10. The main unit of a food processing machine according to claim 1, characterized in that, The bottom of the mounting bracket is provided with a buckle, and the carrier plate is fixed to the mounting bracket by the buckle; Alternatively, the carrier board may be a PCB board or a metal sheet; Alternatively, the mounting bracket has a first end near the connecting rod and a second end opposite to the first end. The upper end of the mounting bracket is provided with a strip-shaped rib extending from the first end to the second end. Multiple buttons are provided, forming a mating seam between adjacent buttons. The mounting bracket is positioned below the mating seam, and the strip-shaped rib is provided corresponding to the edge of the mating seam.

11. A food processing machine, characterized in that, The device includes a main unit as described in any one of claims 1 to 10, a cup body, and a stirring blade disposed within the cup body. The main unit is assembled into the cup body so that the connecting rod is forced to push the switch assembly upward to the trigger position. When the button is pressed down, the trigger rib presses down the spring sheet until the moving contact closes and conducts with the stationary contact of the carrier plate, so that the main unit drives the stirring blade to work.

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