A waterproof micro switch structure capable of draining water and a food processor

Abstract

The utility model discloses a kind of waterproof microswitch structure and food processor of drainage, it is related to food processor structure technical field, it is applied to the cooperation of shell and its upper cover of machine body;Microswitch structure includes microswitch unit, support, vertical rod and annular and flexible waterproof part;Support is located in shell;Vertical guide duct is equipped on support, vertical rod is equipped inside, spring is equipped on the outer periphery of vertical rod;Microswitch unit is located below guide duct;Shell is equipped with through hole, drainage groove is equipped with on the outside of through hole;Drainage groove side is equipped with drain port;Waterproof part sealing sleeve is located on the outer periphery of vertical rod, and fixed on guide duct, below through hole, drain port;Waterproof part has extension, upper surface of extension and shell sealing connection, to isolate through hole and drain port communication to shell inner chamber. By upper cover and machine body connection, vertical rod is pressed down, to trigger microswitch unit. By setting waterproof part and drainage groove, avoid liquid penetration when washing to cause threat to internal circuit.

Description

Technical Field

[0001] This utility model relates to the field of food processor structure technology, specifically to a micro-switch structure that is capable of draining water and is waterproof, and a food processor. Background Technology

[0002] In the design of small kitchen appliances such as food processors and blenders, microswitches are commonly used as key components for detecting lid closure to ensure operational safety. The core requirement is to achieve electrical interlocking control; that is, the internal circuitry of the main unit is only connected and the motor can start when the user has fully installed the lid, effectively preventing accidental injury due to misoperation. Currently, most products on the market use a mechanical linkage triggering scheme to achieve this function. This scheme relies on the lid directly contacting and pressing against the exposed mechanical triggering components (such as springs, levers, or buttons) of the microswitch when closed, thereby triggering the internal contacts of the switch to close.

[0003] However, this triggering method, which relies on external mechanical linkage, has a significant inherent drawback. To achieve reliable triggering, the trigger tip of the microswitch must extend partially beyond the main housing, inevitably creating tiny gaps at the junction of the microswitch and the housing. In daily use, especially when cleaning the machine or handling food with high water content, liquid can easily seep into the switch through these gaps. This can not only cause the microswitch itself to oxidize and malfunction due to moisture, but may also trigger short circuits in the internal control circuitry, severely impacting the lifespan of the appliance and user safety.

[0004] Therefore, there is an urgent need to provide a micro-switch structure and a food processor that can drain water and be waterproof in order to solve the above-mentioned technical problems. Summary of the Invention

[0005] In response to the problems in related technologies, this utility model proposes a micro switch structure and food processor that can drain water and is waterproof, so as to overcome the problems caused by the exposed mechanical triggering method of existing micro switches, such as easy water ingress at the gaps, easy moisture-induced short circuits in the internal circuits, and the safety hazards caused by these problems.

[0006] This utility model is implemented as follows:

[0007] A drainage and waterproof microswitch structure is applied to a body with an upper opening that engages with a detachable upper cover; the body includes a shell, and a cup is provided inside the shell; the microswitch structure includes a microswitch unit, a bracket, a vertical rod, and an annular and flexible waterproof component;

[0008] The bracket is located inside the housing; the bracket is provided with a vertically extending guide pipe with openings at both the top and bottom; the vertical rod is located inside the guide pipe, and a spring is fitted around the outer periphery of the vertical rod; the micro switch unit is fixed below the lower opening of the guide pipe.

[0009] The outer casing has an opening for the vertical rod to pass through; the outer casing has a recessed drainage groove on the outside of the opening; the drainage groove extends horizontally to the peripheral surface of the outer casing; the side of the drainage groove has a drainage outlet that extends to the bottom surface of the drainage groove.

[0010] The waterproof component is sealed around the outer periphery of the vertical rod and fixed above the guide pipe, as well as below the through-hole and the drain outlet; the waterproof component has a horizontally extending portion in the circumferential direction, and the upper surface of the extension portion is sealed to the inner side of the outer shell to prevent the through-hole and the drain outlet from communicating with the inner cavity of the outer shell.

[0011] Under normal conditions, the upper end of the vertical rod is exposed above the opening; when the upper cover is connected to the body, the upper cover contacts the upper end of the vertical rod and presses down, and the lower end of the vertical rod triggers the micro switch unit; when the upper cover is separated from the body, the spring resets the vertical rod.

[0012] By incorporating waterproof components, liquid is prevented from seeping into the inner cavity of the outer casing along the surface of the vertical rod during cleaning, thus preventing the microswitches and related circuits from coming into contact with the liquid. Since the opening is used for the vertical rod's movement and cannot be sealed, liquid can seep below the opening and above the waterproof components during cleaning. Therefore, the inclusion of drainage channels and outlets effectively drains the liquid, preventing accumulated liquid from corroding or damaging the waterproof components.

[0013] Preferably, the outer casing has a deformable cavity below the through-hole; the drain outlet is located on the side of the deformable cavity; and the waterproof component is sealed below the deformable cavity.

[0014] The deformation cavity is a hollow space for the deformation of the waterproof component. In other designs, the waterproof component can also deform into the guide pipe.

[0015] Preferably, the inner side of the housing has a mounting groove that is recessed outward in the direction of the outer diameter; the bracket is fixed in the mounting groove, and the micro switch unit is fixed on the side of the bracket facing the mounting groove; the micro switch unit does not protrude outside the mounting groove; the through-hole is located on the upper surface of the mounting groove;

[0016] The inner side of the outer shell protrudes and bends upward to form a water inlet channel with openings at both ends; the mounting groove is located below the water inlet channel, and the water inlet channel extends laterally across the mounting groove.

[0017] The outer casing typically houses a cup that serves as a liquid heating or food cooking chamber. The seam between the casing and the cup can become a pathway for liquid intrusion. During cleaning, moisture can easily seep into the inner cavity of the casing through this seam, posing a potential threat to the microswitch unit located inside. To address this, a mounting groove and a water channel above it are designed to guide any infiltrated liquid to the sides of the mounting groove, preventing it from affecting the microswitch unit within the groove.

[0018] Preferably, a sealing ring is fitted around the outer periphery of the cup body; the outer peripheral surface of the sealing ring has an axially concave-convex layered structure; the outer peripheral surface of the sealing ring is tightly fitted to the inner surface of the outer shell and the outer surface of the water inlet groove, respectively.

[0019] The sealing ring fits tightly against the outer surface of the water inlet channel, further improving the water inlet channel's guiding effect.

[0020] Preferably, an inwardly tapering mounting groove is provided around the side surface of the vertical rod, and the waterproof component is fitted into the mounting groove; the vertical rod extends radially outward from the upper edge of the mounting groove to form a flange;

[0021] After the waterproof component is assembled, the flange covers the upper opening of the waterproof component, and the lower surface of the flange fits tightly with the upper end face of the waterproof component, with the outward-facing surfaces of both smoothly transitioning at the connection point.

[0022] The assembly groove and flange work together to prevent misalignment of the waterproof component and the vertical rod during dynamic operation through radial limiting and axial sealing, respectively, effectively blocking the seepage path of liquid along their mating gaps.

[0023] Preferably, the inner bottom surface of the guide pipe is provided with a vertically protruding annular boss, and the center of the annular boss is an opening for the vertical rod to pass through downward; the vertical rod protrudes horizontally along its side surface to form a limiting baffle.

[0024] The radial dimension of the limiting baffle is greater than the radial dimension of the annular boss; the spring is limited to the outer periphery of the annular boss and is limited to the bottom of the limiting baffle.

[0025] When the top cover and the body are assembled, the limiting baffle presses down on the spring as the vertical rod moves downward, compressing the spring; when the top cover and the body are separated, the vertical rod loses its downward constraint and returns to its original position under the rebound of the spring.

[0026] Preferably, the sidewall of the guide pipe is provided with a vertically extending slot; the vertical rod protrudes outward from the periphery of the limiting baffle to form an anti-rotation protrusion; the anti-rotation protrusion extends into the slot.

[0027] By setting slots and anti-rotation protrusions, the vertical rod cannot rotate and can only move vertically; when the vertical rod moves vertically, the anti-rotation protrusions move back and forth along the slots.

[0028] To assemble the convex and concave vertical rod into the guide pipe, the lower surface of the anti-rotation protrusion is beveled, and the upper opening edge of the guide pipe is also beveled. During assembly, the two opposing bevels slide together, allowing the anti-rotation protrusion to make radial clearance under axial pressure, thus smoothly sliding into the pipe and achieving rapid and precise assembly of the vertical rod and the guide pipe.

[0029] Preferably, the upper surface of the outer shell of the machine body is provided with a horizontally extending fixing groove, the two ends and the upper side of the fixing groove are open, and the inner sidewall of the fixing groove is provided with a horizontally extending arc-shaped guide groove. Only one end of the arc-shaped guide groove is connected to the end of the fixing groove to form an assembly inlet; the through-hole and the drainage groove are provided at the bottom of the fixing groove.

[0030] The upper cover is provided with a downwardly protruding fixing part, and the side of the fixing part is provided with a horizontally extending guide rib;

[0031] When the upper cover is assembled with the body, the upper cover is rotated relative to the body, so that the fixing part is circumferentially screwed into the fixing groove, and the guide rib slides along the arc-shaped guide groove and locks, so that the upper cover is limited in both vertical and circumferential positions; at the same time, the fixing part presses down on the vertical rod.

[0032] Preferably, the upper end of the vertical rod is formed as a first inclined surface facing upwards, and the lower end is formed as a second inclined surface facing downwards;

[0033] One end of the fixing part is formed as a third inclined surface facing downwards;

[0034] The micro-switch unit has a side-protruding button;

[0035] When the top cover is connected to the body, the first inclined surface and the third inclined surface come into contact, and the vertical rod is gradually pressed down. The vertical rod squeezes the button through the second inclined surface and triggers the micro switch unit.

[0036] This utility model also provides a food processor that uses the above-mentioned micro-switch structure that can drain water and is waterproof.

[0037] An electrical component is fixed at the bottom of the cup body; the electrical component includes a driving unit and a heating unit; the heating unit includes an integrally connected heat spreader and a heating tube, and the upper surface of the heat spreader is attached and fixed to the outer surface of the bottom of the cup body.

[0038] The drive unit is located below the heating unit. The drive unit has an output shaft that extends upward and passes through the inner cavity of the cup. The upper end of the output shaft is connected to a rotating cutter.

[0039] The beneficial effects are as follows:

[0040] This invention provides a micro-switch structure and food processor that is both waterproof and drainable. By incorporating a waterproof component, liquid is prevented from seeping into the inner cavity of the outer casing along the surface of the vertical rod during cleaning, thus preventing the micro-switch unit and related circuitry from coming into contact with liquid. Since the opening is used for the vertical rod's movement and cannot be sealed, liquid can seep below the opening and above the waterproof component during cleaning. Therefore, the drainage channel and outlet effectively drain the liquid, preventing accumulated liquid from corroding or damaging the waterproof component. Attached Figure Description

[0041] Figure 1 A schematic diagram of the structure of the food processor provided in this embodiment of the utility model (top cover open);

[0042] Figure 2 for Figure 1 A magnified view at point a;

[0043] Figure 3 A schematic diagram of the internal structure of the outer shell provided in an embodiment of this utility model;

[0044] Figure 4 An enlarged view of the drainage trough provided in an embodiment of this utility model;

[0045] Figure 5 A schematic diagram of the fitting of the sealing ring and the water inlet groove provided in an embodiment of this utility model;

[0046] Figure 6 An exploded view of the bracket and its internal structure provided in an embodiment of this utility model;

[0047] Figure 7 A top view of a food processor provided in an embodiment of this utility model;

[0048] Figure 8 for Figure 7 Sectional view at point AA;

[0049] Figure 9 for Figure 8 A magnified view at point b;

[0050] Figure 10 for Figure 7 Sectional view at BB.

[0051] Figure label:

[0052] 1. Body; 1-1. Outer shell; 1-11. Handle; 1-12. Mounting groove; 1-13. Water inlet groove; 1-14. Fixing groove; 1-15. Arc-shaped guide groove; 1-16. Through-hole; 1-17. Drainage groove; 1-18. Drain outlet; 1-19. Deformation cavity;

[0053] 2. Top cover; 2-1. Fixing part; 2-2. Guide rib; 2-3. Third inclined surface;

[0054] 3. Cup body; 4. Sealing ring; 5. Drive unit; 6. Heating unit; 7. Rotating cutter;

[0055] 8. Support; 8-1. Guide pipe; 8-2. Annular boss; 8-3. Groove;

[0056] 9. Vertical rod; 9-1. Limiting baffle; 9-2. Anti-rotation protrusion; 9-3. First inclined surface; 9-4. Second inclined surface; 9-5. Assembly groove; 9-6. Flange;

[0057] 10. Waterproof parts; 10-1. Extension section;

[0058] 11. Microswitch unit; 11-1. Button;

[0059] 12. Spring. Detailed Implementation

[0060] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0061] like Figures 1 to 10 As shown, this embodiment provides a food processor, including a body 1 with an upper opening, the upper opening cooperating with a separable upper cover 2; the body 1 includes an outer shell 1-1, and a cup body 3 is provided inside the outer shell 1-1.

[0062] In this embodiment, the outer casing 1-1 is provided with a handle 1-11; the inner side of the outer casing 1-1 has a mounting groove 1-12 that is recessed towards the position of the handle 1-11 and in the outer diameter direction; the inner side of the outer casing 1-1 protrudes and bends upward to form a water channel 1-13 with openings at both ends; the mounting groove 1-12 is located below the water channel 1-13, and the water channel 1-13 laterally spans the mounting groove 1-12.

[0063] Inside the outer shell 1-1, a sealing ring 4 is fitted around the outer periphery of the cup body 3; the outer periphery surface of the sealing ring 4 has an axial concave-convex layered structure; the outer periphery surface of the sealing ring 4 is tightly fitted to the inner surface of the outer shell 1-1 and the outer surface of the water inlet trough 1-13 respectively.

[0064] In this embodiment, the upper surface of the outer shell 1-1 of the body 1 is provided with a horizontally extending fixing groove 1-14. The fixing groove 1-14 is open at both ends and on the upper side, and its inner sidewall is provided with a horizontally extending arc-shaped guide groove 1-15. Only one end of the arc-shaped guide groove 1-15 is connected to the end of the fixing groove 1-14 to form an assembly inlet. Specifically, the fixing groove 1-14 is provided on the upper surface of the connection between the outer shell 1-1 and the main body of the handle 1-11.

[0065] Correspondingly, the upper cover 2 is provided with a downwardly protruding fixing part 2-1, and the side of the fixing part 2-1 is provided with a horizontally extending guide rib 2-2. The upper cover 2 is placed at the upper opening of the body 1 and rotated relative to the body 1, causing the fixing part 2-1 to be circumferentially screwed into the fixing groove 1-14, and the guide rib 2-2 to slide along the arc-shaped guide groove 1-15 and lock, thus limiting the upper cover 2 vertically and circumferentially, completing the assembly connection between the upper cover 2 and the body 1. The fixing part 2-1 can also be a detachable assembly.

[0066] An electrical component is fixed below the cup body 3; the electrical component includes a drive unit 5 and a heating unit 6; the heating unit 6 includes an integrally connected heat spreader and heating tube, the upper surface of the heat spreader is attached and fixed to the outer surface of the bottom of the cup body 3; the drive unit 5 is located below the heating unit 6, the drive unit 5 has an output shaft, the output shaft extends upward and passes through the inner cavity of the cup body 3, and the upper end of the output shaft is connected to a rotating cutter 7.

[0067] The food processor in this embodiment uses a micro-switch structure that is capable of draining water and is waterproof, including a micro-switch unit 11, a support 8, a vertical rod 9, and a ring-shaped and flexible waterproof component 10.

[0068] In this embodiment, the outer shell 1-1 is provided with a through-hole 1-16 for the vertical rod 9 to pass through. Specifically, the through-hole 1-16 is located at the bottom of the fixing groove 1-14 and on the upper surface of the mounting groove 1-12. On one side of the through-hole 1-16, the fixing groove 1-14 is recessed to form a drainage groove 1-17, which extends horizontally to one end of the fixing groove 1-14 to the peripheral surface of the outer shell 1-1. A drainage outlet 1-18 is provided on the side of the drainage groove 1-17, extending to the bottom surface of the drainage groove 1-17, and the drainage outlet 1-18 is close to the through-hole 1-16. The outer shell 1-1 is provided with a deformation cavity 1-19 below the through-hole 1-16; the drainage outlet 1-18 is located on the side of the deformation cavity 1-19.

[0069] The bracket 8 is located inside the outer shell 1-1 and is specifically fixed in the mounting groove 1-12. The bracket 8 has a guide pipe 8-1 that extends vertically and is open at both the top and bottom. The inner bottom surface of the guide pipe 8-1 has a vertically protruding annular boss 8-2, and the middle of the annular boss 8-2 has an opening for the vertical rod 9 to pass through downward.

[0070] A vertical rod 9 is located inside the guide pipe 8-1, with both ends of the vertical rod 9 extending out of the guide pipe 8-1. To enable the vertical rod 9 to have elastic extension and contraction in the vertical direction, a spring 12 is fitted around the outer periphery of the vertical rod 9. Specifically, a limiting baffle 9-1 is formed by a horizontal protrusion along the side surface of the vertical rod 9. The radial dimension of the limiting baffle 9-1 is larger than the radial dimension of the annular boss 8-2. The spring 12 is located on the outer periphery of the annular boss 8-2 and below the limiting baffle 9-1. When the limiting baffle 9-1 moves downward with the vertical rod 9, the limiting baffle 9-1 approaches the guide pipe 8-1, compressing the spring 12; when the limiting baffle 9-1 moves upward with the vertical rod 9, the compressed spring 12 returns to its extended state.

[0071] Understandably, in order to assemble the vertical rod 9 with its uneven side surface into the guide pipe 8-1, the radial dimension of the guide pipe 8-1 at the upper opening is larger than that at the lower opening.

[0072] Furthermore, to prevent the vertical rod 9 from rotating during vertical extension and retraction, in this embodiment, a vertically extending slot 8-3 is provided on the side wall of the guide pipe 8-1; correspondingly, the peripheral edge of the limiting baffle 9-1 of the vertical rod 9 protrudes outward to form an anti-rotation protrusion 9-2. After the vertical rod 9 is assembled, the anti-rotation protrusion 9-2 extends into the slot 8-3. The width of the anti-rotation protrusion 9-2 and the slot 8-3 are adapted to each other. When the vertical rod 9 moves vertically, the anti-rotation protrusion 9-2 moves back and forth along the slot 8-3.

[0073] To assemble the convex and concave vertical rod 9 into the guide pipe 8-1, the lower surface of the anti-rotation protrusion 9-2 is beveled, and the upper opening edge of the guide pipe 8-1 is also beveled. During assembly, the two opposing bevels slide together, allowing the anti-rotation protrusion 9-2 to make radial clearance under axial pressure, thus smoothly sliding into the pipe and achieving rapid and precise assembly of the vertical rod 9 and the guide pipe 8-1.

[0074] The micro switch unit 11 is fixed below the lower opening of the guide tube 8-1. Specifically, the micro switch unit 11 is fixed to the side of the bracket 8 facing the mounting groove 1-12, and the micro switch unit 11 does not protrude outside the mounting groove 1-12. The micro switch unit 11 has a laterally protruding button 11-1. The lower end of the vertical rod 9 is formed into a second inclined surface 9-4 facing downwards.

[0075] When the vertical rod 9 moves down, the downward pressure is converted into lateral pressure toward the button 11-1 through the second inclined plane 9-4, thereby triggering the micro-motion development unit.

[0076] The upper end of the vertical rod 9 is formed as a first inclined surface 9-3 facing upwards, and one end of the fixing part 2-1 is formed as a third inclined surface 2-3 facing downwards. Normally, the upper end of the vertical rod 9 is exposed outside the through-hole 1-16. When the upper cover 2 is connected to the body 1, the fixing part 2-1 is circumferentially screwed into the fixing groove 1-14, and the first inclined surface 9-3 and the third inclined surface 2-3 come into contact. Through the cooperation of the first inclined surface 9-3 and the third inclined surface 2-3, the horizontal pressure of the fixing part 2-1 is converted into a vertically downward pressure, that is, the fixing part 2-1 presses down on the vertical rod 9, which in turn presses the button 11-1 through the second inclined surface 9-4, triggering the micro switch unit 11.

[0077] The waterproof component 10 is sealed around the outer periphery of the vertical rod 9. Specifically, an inwardly tapering assembly groove 9-5 is provided around the side surface of the vertical rod 9, and the waterproof component 10 is fitted into the assembly groove 9-5; the vertical rod 9 extends radially outward from the upper edge of the assembly groove 9-5 to form a flange 9-6;

[0078] After the waterproof component 10 is assembled, the flange 9-6 covers the upper opening of the waterproof component 10, and the lower surface of the flange 9-6 is in close contact with the upper end face of the waterproof component 10, with the outward surfaces of the two smoothly transitioning at the connection.

[0079] After the waterproof component 10 and the vertical rod 9 are assembled and connected, they are fixed above the guide pipe 8-1 and below the deformation cavity 1-19, that is, below the through-hole 1-16 and the drain outlet 1-18. Specifically, the waterproof component 10 has a horizontally extending portion 10-1 in the circumferential direction. The upper surface of the extension portion 10-1 is sealed to the inner surface of the outer shell 1-1 to prevent the through-hole 1-16 and the drain outlet 1-18 from communicating with the inner cavity of the outer shell 1-1. The deformation cavity 1-19 is a cavity for the deformation of the waterproof component 10.

[0080] Under normal circumstances, the upper end of the vertical rod 9 is exposed above the openings 1-16.

[0081] When the top cover 2 is connected to the body 1, the top cover 2 contacts the upper end of the vertical rod 9 and presses down. The lower end of the vertical rod 9 triggers the micro switch unit 11. At this time, the limiting baffle 9-1 presses down on the spring 12 as the vertical rod 9 moves down, compressing the spring 12. When the vertical rod 9 moves down, the waterproof component 10 will stretch and deform accordingly. The deformation cavity 1-19 is a cavity for the deformation (stretching) of the waterproof component 10. The assembly groove 9-5 and the flange 9-6 work together to prevent the waterproof component 10 and the vertical rod 9 from misaligning during dynamic operation through radial limiting and axial sealing, respectively, effectively blocking the seepage path of liquid along their mating gaps.

[0082] When the top cover 2 separates from the body 1, the vertical rod 9 loses its downward constraint and is reset by the rebound action of the spring 12. At the same time, the spring 12 resets the vertical rod 9.

[0083] By incorporating the waterproof component 10, liquid is prevented from seeping into the inner cavity of the outer casing 1-1 along the surface of the vertical rod 9 during cleaning, thus preventing the microswitch unit 11 and related circuits from coming into contact with the liquid. Since the through-hole 1-16 is used for the vertical movement of the vertical rod 9 and cannot be sealed, liquid will seep below the through-hole 1-16 and above the waterproof component 10 during cleaning. Therefore, the drainage groove 1-17 and drainage outlet 1-18 effectively drain the liquid, preventing the accumulated liquid from causing corrosion or other damage to the waterproof component 10.

[0084] The outer casing 1-1 typically houses a cup 3, which serves as a liquid heating or food cooking chamber. The assembly gap between the outer casing 1-1 and the cup 3 can become a pathway for liquid intrusion. During cleaning of the machine body 1, moisture can easily seep into the inner cavity of the outer casing 1-1 along this gap, posing a potential threat to the micro-switch unit 11 located inside. Therefore, a mounting groove 1-12 and a water guide trough 1-13 above it are provided to promptly guide any infiltrated liquid to both sides of the mounting groove, preventing it from affecting the micro-switch unit 11 within the mounting groove 1-12. The sealing ring 4 and the outer surface of the water guide trough 1-13 are tightly fitted, improving the water guiding effect of the water guide trough 1-13.

[0085] The above-mentioned waterproof components 10, drainage channels 1-17 and water inlet channels 1-13 together form the waterproof measures of the micro-switch structure of the food processor in this embodiment.

[0086] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A microswitch structure that is waterproof and drainable, applied to a body with an upper opening, the upper opening engaging with a detachable upper cover; the body includes a shell, and a cup is disposed within the shell; characterized in that: The micro switch structure includes a micro switch unit, a bracket, a vertical rod, and a ring-shaped, flexible, waterproof component; The bracket is located inside the housing; the bracket is provided with a vertically extending guide pipe with openings at both the top and bottom; the vertical rod is located inside the guide pipe, and a spring is fitted around the outer periphery of the vertical rod; the micro switch unit is fixed below the lower opening of the guide pipe. The outer casing has an opening for the vertical rod to pass through; the outer casing has a recessed drainage groove on the outside of the opening; the drainage groove extends horizontally to the peripheral surface of the outer casing; the side of the drainage groove has a drainage outlet that extends to the bottom surface of the drainage groove. The waterproof component is sealed around the outer periphery of the vertical rod and fixed above the guide pipe, as well as below the through-hole and the drain outlet; the waterproof component has a horizontally extending portion in the circumferential direction, and the upper surface of the extension portion is sealed to the inner side of the outer shell to prevent the through-hole and the drain outlet from communicating with the inner cavity of the outer shell. Under normal conditions, the upper end of the vertical rod is exposed above the opening; when the upper cover is connected to the body, the upper cover contacts the upper end of the vertical rod and presses down, and the lower end of the vertical rod triggers the micro switch unit; when the upper cover is separated from the body, the spring resets the vertical rod.

2. The micro switch structure that is capable of drainage and waterproofing according to claim 1, characterized in that: The outer casing has a deformable cavity below the opening; the drain outlet is located on the side of the deformable cavity; and the waterproof component is sealed below the deformable cavity.

3. The micro switch structure that is capable of drainage and waterproofing according to claim 1, characterized in that: The inner side of the housing has a mounting groove that is recessed outward in the direction of the outer diameter; the bracket is fixed in the mounting groove, and the micro switch unit is fixed on the side of the bracket facing the mounting groove; the micro switch unit does not protrude outside the mounting groove; the through-hole is located on the upper surface of the mounting groove; The inner side of the outer shell protrudes and bends upward to form a water inlet channel with openings at both ends; the mounting groove is located below the water inlet channel, and the water inlet channel extends laterally across the mounting groove.

4. The micro switch structure that is capable of drainage and waterproofing according to claim 3, characterized in that: A sealing ring is fitted around the outer periphery of the cup body; the outer peripheral surface of the sealing ring has an axially concave-convex layered structure; the outer peripheral surface of the sealing ring is tightly fitted to the inner surface of the outer shell and the outer surface of the water inlet groove, respectively.

5. The micro switch structure that is capable of drainage and waterproofing according to claim 1, characterized in that: A tapering mounting groove is provided around the side surface of the vertical rod, and the waterproof component is fitted into the mounting groove; the vertical rod extends radially outward from the upper edge of the mounting groove to form a flange; After the waterproof component is assembled, the flange covers the upper opening of the waterproof component, and the lower surface of the flange fits tightly with the upper end face of the waterproof component, with the outward-facing surfaces of both smoothly transitioning at the connection point.

6. The micro switch structure that is capable of drainage and waterproofing according to claim 1, characterized in that: The inner bottom surface of the guide pipe is provided with a vertically protruding annular boss, and the middle of the annular boss is an opening for the vertical rod to pass through downward; the vertical rod protrudes horizontally along the side surface to form a limiting baffle. The radial dimension of the limiting baffle is greater than the radial dimension of the annular boss; the spring is limited to the outer periphery of the annular boss and is limited to the bottom of the limiting baffle.

7. The micro switch structure that is capable of drainage and waterproofing according to claim 6, characterized in that: The side wall of the guide pipe is provided with a vertically extending slot; the vertical rod protrudes outward from the periphery of the limiting baffle to form an anti-rotation protrusion; the anti-rotation protrusion extends into the slot.

8. The micro switch structure that is capable of drainage and waterproofing according to claim 7, characterized in that: The upper surface of the outer shell of the machine body is provided with a horizontally extending fixing groove, which is open at both ends and on the upper side. The inner wall of the fixing groove is provided with a horizontally extending arc-shaped guide groove. Only one end of the arc-shaped guide groove is connected to the end of the fixing groove to form an assembly inlet. The through-hole and the drainage groove are located at the bottom of the fixing groove. The upper cover is provided with a downwardly protruding fixing part, and the side of the fixing part is provided with a horizontally extending guide rib; When the upper cover is assembled with the body, the upper cover is rotated relative to the body, so that the fixing part is circumferentially screwed into the fixing groove, and the guide rib slides along the arc-shaped guide groove and locks, so that the upper cover is limited in both vertical and circumferential positions; at the same time, the fixing part presses down on the vertical rod.

9. The micro switch structure that is capable of drainage and waterproofing according to claim 8, characterized in that: The upper end of the vertical rod is formed as a first inclined surface facing upwards, and the lower end is formed as a second inclined surface facing downwards. One end of the fixing part is formed as a third inclined surface facing downwards; The micro-switch unit has a side-protruding button; When the top cover is connected to the body, the first inclined surface and the third inclined surface come into contact, and the vertical rod is gradually pressed down. The vertical rod squeezes the button through the second inclined surface and triggers the micro switch unit.

10. A food processor, characterized in that: The micro switch structure that is capable of being drained and waterproof is applied as described in any one of claims 1 to 9; An electrical component is fixed at the bottom of the cup body; the electrical component includes a driving unit and a heating unit; the heating unit includes an integrally connected heat spreader and a heating tube, and the upper surface of the heat spreader is attached and fixed to the outer surface of the bottom of the cup body. The drive unit is located below the heating unit. The drive unit has an output shaft that extends upward and passes through the inner cavity of the cup. The upper end of the output shaft is connected to a rotating cutter.

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