A food processor using safety

Abstract

The utility model belongs to kitchen appliance technical field discloses a kind of safe food processor in use, including cup, cup cover, motor and comminuting device, the comminuting device is located in cup and is driven by motor, cup is fixed with handle, microswitch that the handle is installed is controlled the on-off of motor, cup cover is provided with trigger lever, the microswitch includes body, metal spring piece fixed to body in one end, contact arranged in body, the outer wall of handle is provided with trigger hole, the metal spring piece is provided with insulating part opposite to the trigger hole, the trigger lever passes through the trigger hole and is pressed on the insulating part on the metal spring piece, so that the metal spring piece triggers the contact. While guaranteeing the safety in use, the smoothness of lid is also considered.

Description

Technical Field

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

[0002] In existing food processing machines, a microswitch is usually installed on the cup handle to ensure that the motor is powered off when the lid is closed. When the lid is closed on the cup, the microswitch is triggered, and the motor is powered on and can start running. If the lid is not closed or is not closed properly, the microswitch cannot be triggered, and the motor remains powered off to ensure safety.

[0003] One existing method for cutting off power when the lid is opened is to use a magnetically driven micro switch. A first magnet is placed on the side wall of the lid, and a second magnet is placed on the free end of the spring of the micro switch. When the lid is closed, the second magnet is repelled by the first magnet, which drives the spring to move and triggers the contact of the micro switch.

[0004] Due to the high manufacturing cost of magnetic switches, and based on cost reduction requirements, another method of power-off upon opening the lid uses a push-rod driven microswitch. Furthermore, using a push-rod drive eliminates the problem of magnet demagnetization causing trigger insensitivity, and the triggering is more reliable. For example, patent CN217137750U discloses a food processing machine with a switch push rod and an anti-detachment rod inside the cup lid. A microswitch and a locking component are located inside the cup body's mounting cavity. A through hole is formed in the cavity wall. When the cup lid is locked onto the cup body, the anti-detachment rod engages with the locking component to lock the lid's position. Simultaneously, the switch push rod passes through the through hole to trigger the microswitch, energizing the motor.

[0005] However, microswitches contain conductive components, and the mounting cavity must have a through hole to accommodate the switch rod, making it prone to water ingress. If a user touches a damp area of ​​the through hole, the water can act as a conductive medium, connecting the finger to the conductive components of the microswitch, posing a risk of electric shock and making it unsafe to use.

[0006] Even though the aforementioned patent adds a seal to the outer wall of the mounting cavity, with a sealing hole corresponding to the through hole, and the sealing hole can be opened by the pushing action of the switch rod and the anti-disengagement rod, and can be reset and sealed by its own elasticity, thus preventing water from entering the through hole, in actual use, users need to exert force to open the sealing hole when closing the cup lid. During the closing process, there is frictional interference between the switch rod and the sealing hole of the seal, causing the switch rod to overcome a large frictional resistance when closing the cup lid, resulting in difficulty in closing the lid. Moreover, the seal wears down due to long-term friction with the switch rod, and its sealing performance will gradually decrease or even fail. At this time, the problem of water entering the through hole cannot be reliably solved, and the risk of electric shock still exists. Utility Model Content

[0007] This invention provides a safe food processing machine that solves the technical problem in the prior art where water easily enters the trigger hole near the push rod driven micro switch, posing a risk of electric shock to the user's fingers when they approach the trigger hole, without increasing the frictional resistance of the cup lid.

[0008] The technical solution adopted by this utility model is as follows: a safe food processing machine, including a cup body, a cup lid, a motor, and a crushing device. The crushing device is located inside the cup body and is driven by the motor. The cup body is fixed with a handle, and a micro switch for controlling the power supply of the motor is installed inside the handle. The cup lid has a protruding trigger rod. The micro switch includes a body, a metal spring sheet with one end fixed to the body, and a contact provided on the body. A trigger hole is opened on the outer wall of the handle. An insulating part is provided on the metal spring sheet, which is directly opposite to the trigger hole. The trigger rod passes through the trigger hole and presses against the insulating part on the metal spring sheet, so that the metal spring sheet triggers the contact.

[0009] The food processing machine provided by this utility model features an insulating component on a metal spring that faces the trigger hole. This insulating component blocks the conductive path between water that may seep into the trigger hole and the conductive components on the metal spring and microswitch body, thus preventing the safety hazard of electric shock caused by water conduction when the user's finger approaches the trigger hole, and improving user safety. By using the insulating component, the trigger rod directly presses against it, thereby actuating the metal spring's trigger contact. This eliminates the need for a traditional sealing structure, avoiding the risk of electric shock and preventing frictional interference between the trigger rod and the sealing component. This also eliminates additional frictional resistance when closing the lid, making closing easier and ensuring both safety and smooth operation. Furthermore, the metal spring used in the microswitch provides excellent resilience and fatigue resistance, ensuring sensitive and reliable triggering.

[0010] In a preferred embodiment, the insulating element is a sealing element, and when the metal spring is not pressed by the trigger rod, the metal spring presses the sealing element against the edge of the trigger hole to seal the trigger hole.

[0011] The insulating component is a sealing component, which has the dual functions of insulation and sealing. In the natural state where the metal spring is not pressed by the trigger rod, the metal spring can tightly press the sealing component against the edge of the trigger hole. By using the sealing characteristics, the path of water entering the handle through the trigger hole is blocked from the source. At the same time, the insulating characteristics ensure that even if a small amount of water enters the handle, it will not conduct electricity, thus achieving a double anti-electric shock effect.

[0012] In a preferred embodiment, the metal spring includes a metal sheet and a spring abutting between the metal sheet and the body.

[0013] The spring provides stable and quick-resetting elastic support for the metal sheet, which is more durable and reliable than the metal sheet's own elastic deformation. When the trigger rod presses against the metal sheet, the spring can be compressed to ensure that the metal sheet can accurately trigger the contact. When the cover is opened so that the trigger rod is no longer pressing against the metal sheet, the spring can drive the metal sheet to quickly reset, thereby pushing the seal, which acts as an insulating component, to press back against the edge of the trigger hole, enhancing the sealing force and effect of the seal.

[0014] In a preferred embodiment, the seal includes a sealing plane that covers the trigger hole and a sealing ring rib that abuts against the edge of the trigger hole.

[0015] The sealing plane can directly form a large area of ​​shielding the trigger hole, blocking external water from seeping into the trigger hole and blocking the conductive path. The sealing ring rib can form a tight circumferential contact with the edge of the trigger hole, achieving a line seal effect, extending the water inlet path, preventing water from entering the handle, and further strengthening the fit and sealing performance between the seal and the trigger hole. The sealing effect and insulation effect are enhanced simultaneously.

[0016] In a preferred embodiment, the metal spring includes a mounting section on which the insulating element is mounted and a connecting section connecting the mounting section to the body, the connecting section triggering the contact, and the mounting section bending relative to the connecting section.

[0017] By connecting the connecting section to the main body and cooperating with the contacts to achieve the pressure triggering function, the triggering is reliable. Simultaneously, the bending of the mounting section relative to the connecting section provides an accurate and reasonable installation position for the insulating components, ensuring that the insulating components on the mounting section are more naturally and precisely aligned with the trigger hole, effectively providing insulation, avoiding the risk of electric shock, and ensuring safe use. Because the mounting section is bent relative to the connecting section, the rebound force of the metal spring is increased when not subjected to pressure from the trigger rod, helping the metal spring to spring back into place and separate from the contacts, improving safety during use.

[0018] In a preferred embodiment, the insulating element is an insulating sleeve that is detachably fitted onto the outer periphery of the metal spring; or, the insulating element and the metal spring are injection molded as one piece.

[0019] Regardless of the method used, the insulating component can achieve insulation at the trigger hole location, preventing the risk of electric shock. The detachable insulating sleeve facilitates assembly and allows for individual replacement during later maintenance, reducing repair costs. The use of an integrally molded metal spring insulating component enhances the connection stability between the insulating component and the metal spring, preventing displacement or detachment of the insulating component during long-term use and ensuring continuous and reliable insulation performance.

[0020] In a preferred embodiment, the food processing machine further includes a mounting bracket for mounting the micro switch, and the handle includes a handle bracket fixed to the cup body and a handle cover fastened to the outside of the handle bracket, the mounting bracket being pressed against the handle bracket by the handle cover.

[0021] The handle includes a handle bracket and a handle cover. The micro switch is limited by the mounting bracket, and the mounting bracket is pressed against the handle bracket by the handle cover, so as to reliably fix the mounting bracket and the micro switch. The assembly is convenient. After installation, the handle cover hides the two and avoids exposure.

[0022] In a preferred embodiment, the trigger rod protrudes laterally from the cup lid and the trigger hole penetrates through the side wall of the handle. The cup lid is screwed onto the cup body, so that the trigger rod laterally presses against the insulating part on the metal spring.

[0023] The cup lid is screwed on, ensuring a tight axial fit between the lid and the cup body during operation, preventing the lid from wobbling and ensuring a stable fit. The trigger rod is horizontally positioned and presses against the insulating component on the metal spring. The trigger hole extends vertically through the side wall of the handle. This design prevents water from easily entering through the trigger hole, even if water is present above the lid or if slurry overflows during processing. Even if water does enter, it will fall along the metal spring and the insulating component, preventing accumulation on the metal spring and further reducing the risk of electric shock and improving safety.

[0024] In a preferred embodiment, the cup lid has a downwardly extending extension wall, the trigger rod is laterally protruding from the extension wall, the handle has a receiving groove, the trigger hole is opened on the groove wall of the receiving groove, and the cup lid is screwed onto the cup body, such that the extension wall is located in the receiving groove and the trigger rod is inserted into the trigger hole.

[0025] By setting a receiving groove in the handle, when the lid is screwed on, the extended wall is located in the receiving groove and the trigger rod is inserted into the trigger hole, so that the extended wall is hidden in the receiving groove and does not protrude. The extended wall and the outer wall of the handle are flush, forming an integrated visual effect, which can give users a visual prompt that the lid is closed, and improve the operating experience.

[0026] In a preferred embodiment, the peripheral wall of the trigger rod is provided with a backstop protrusion, and the trigger rod is inserted into the trigger hole, so that the backstop protrusion extends into the handle and stops and limits the edge of the trigger hole.

[0027] By setting anti-retraction protrusions on the peripheral wall of the trigger rod, the cup lid is positioned using a simple structure. No additional locking structure is needed, which can prevent the cup lid from loosening during operation and causing the trigger rod to exit the trigger hole, thus ensuring the stable operation of the food processing machine. Attached Figure Description

[0028] 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: Figure 1 This is an exploded structural diagram of a food processing machine according to one embodiment of the present invention; Figure 2 This is a longitudinal cross-sectional view of a food processing machine in one embodiment of the present invention; Figure 3 This is a schematic cross-sectional view of the cup body in one embodiment of the present invention; Figure 4 This is an exploded view of the micro switch and insulating component in one embodiment of the present invention; Figure 5 This is a schematic diagram of the exploded structure of the food processing machine from another angle in one embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the cooperation between the extension wall and the handle in another embodiment of the present invention.

[0029] List of components and reference numerals: 10. Cup body; 20. Cup lid; 21. Trigger rod; 22. Extension wall; 23. Anti-reverse protrusion; 30. Motor; 40. Crushing device; 50. Handle; 501. Trigger hole; 51. Handle bracket; 52. Handle cover; 53. Receiving groove; 60. Micro switch; 61. Body; 62. Metal spring; 621. Mounting section; 622. Connecting section; 63. Contact; 70. Insulating component; 80. Mounting bracket. Detailed Implementation

[0030] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] like Figure 1 , 2 As shown, in one embodiment, this utility model provides a safe food processor, including a cup body 10, a cup lid 20, a motor 30, and a grinding device 40. The grinding device 40 is located inside the cup body 10 and is driven by the motor 30. The grinding device 40 can be a grinding blade or a moving grinding head. The cup body 10 is fixed with a handle 50, and a micro switch 60 for controlling the power supply to and from the motor 30 is installed inside the handle 50. The cup lid 20 has a protruding trigger rod 21.

[0036] Combination Figure 3As shown, the micro switch 60 includes a body 61, a metal spring 62 fixed to the body 61 at one end, and a contact 63 disposed on the body 61. A trigger hole 501 is opened on the outer wall of the handle 50. An insulating member 70 is disposed on the metal spring 62, which is directly opposite to the trigger hole 501. The trigger rod 21 passes through the trigger hole 501 and presses against the insulating member 70 on the metal spring 62, so that the metal spring 62 triggers the contact 63.

[0037] The food processor provided in the above embodiments of this utility model, by providing an insulating component 70 on the metal spring 62 directly opposite the trigger hole 501, can block the conductive path between water that may seep into the trigger hole 501 and the conductive components on the metal spring 62 and the micro switch 60 body 61. This avoids the safety hazard of electric shock caused by water conduction when the user's finger approaches the trigger hole 501, thus improving user safety. By providing the insulating component 70, the trigger rod 21 directly presses against the insulating component 70, thereby driving the metal spring 62 to trigger the contact 63. There is no need for a traditional sealing structure. While avoiding the risk of electric shock, there is no frictional interference between the trigger rod 21 and the sealing component, which also avoids additional frictional resistance when closing the lid 20. Closing the lid is effortless, ensuring both safety and smoothness. Moreover, the metal spring 62 used in the micro switch 60 has good resilience and fatigue resistance, making the micro switch 60 sensitive and reliable in triggering.

[0038] like Figure 3 As shown, in a preferred embodiment, the insulating member 70 is a sealing member. When the metal spring 62 is not pressed by the trigger rod 21, the metal spring 62 presses the sealing member against the edge of the trigger hole 501 to seal the trigger hole 501.

[0039] Specifically, the seal includes a sealing plane that blocks the trigger hole 501. Preferably, the seal may also include a sealing ring rib that abuts against the edge of the trigger hole 501, or the seal may also be provided with a sealing rib that is inserted into the trigger hole 501, thereby sealing the trigger hole 501.

[0040] The insulating component 70 serves as a seal, possessing both insulation and sealing functions. In its natural state without the metal spring 62 being pressed by the trigger rod 21, the metal spring 62 can tightly press the seal against the edge of the trigger hole 501. This sealing characteristic blocks the path of water entering the handle 50 through the trigger hole 501 at the source. Simultaneously, its insulation properties ensure that even if a small amount of water enters the handle 50, no electrical conductivity will occur, achieving a dual protection against electric shock. The sealing plane directly forms a large-area shield around the trigger hole 501, preventing external water from seeping into it and blocking the conductive path. The sealing ring rib forms a tight circumferential contact with the edge of the trigger hole 501, achieving a line seal effect. This further enhances the fit and sealing performance between the seal and the trigger hole 501, simultaneously strengthening both the sealing and insulation effects.

[0041] like Figure 3 As shown, in a preferred embodiment, the metal spring 62 includes a metal sheet with multiple bends and elasticity, which elastically resets when not pressed by the trigger rod 21.

[0042] Of course, in other embodiments, preferably, the metal spring 62 includes a metal sheet and a spring abutting between the metal sheet and the body 61.

[0043] The spring provides stable and quick-resetting elastic support for the metal sheet, which is more durable and reliable than the metal sheet's own elastic deformation. When the trigger rod 21 presses against the metal sheet, the spring can be compressed to ensure that the metal sheet can accurately trigger the contact 63. When the cover is opened so that the trigger rod 21 does not press against the metal sheet, the spring can drive the metal sheet to quickly reset, thereby pushing the seal 70, which is an insulating component, to press back against the edge of the trigger hole 501, strengthening the sealing force and effect of the seal.

[0044] This utility model does not limit the installation method of the insulating component, such as... Figure 4 As shown, in a preferred embodiment, the insulating member 70 is an insulating sleeve that is detachably fitted around the metal spring 62.

[0045] Of course, in other embodiments, the insulating member 70 is injection molded integrally with the metal spring 62. Specifically, the insulating member 70 circumferentially wraps around the free end of the metal spring 62, or the insulating member 70 is injection molded on the side of the metal spring 62 facing the trigger hole. Of course, the insulating member 70 can also be pasted onto the side of the metal spring 62 facing the trigger hole.

[0046] In addition, the insulating component 70 in this utility model can be a silicone component or a plastic component.

[0047] Regardless of the method used, the insulating component 70 can achieve insulation at the trigger hole 501 position, preventing the risk of electric shock. The removable insulating sleeve facilitates assembly and allows for individual replacement during later maintenance, reducing repair costs. The use of an integrally molded metal spring 62 for the insulating component 70 enhances the connection stability between the insulating component 70 and the metal spring 62, preventing displacement or detachment of the insulating component 70 during long-term use and ensuring continuous and reliable insulation performance.

[0048] like Figure 3 , 4 As shown, in a preferred embodiment, the metal spring 62 includes a mounting section 621 on which an insulating member 70 is mounted and a connecting section 622 connecting the mounting section to the body 61. The connecting section 622 triggers a contact 63, and the mounting section 621 is bent relative to the connecting section 622. More preferably, the mounting section 621 is arranged parallel to the trigger hole 501. In this way, when the insulating member 70 is a sealing member, the sealing member can fit more tightly with the edge of the trigger hole when the metal spring is not under force, thereby improving the sealing effect.

[0049] By connecting the connecting section to the body 61 and cooperating with the contact 63, the pressure triggering function is realized, and the triggering is reliable. At the same time, the bending of the mounting section relative to the connecting section provides an accurate and reasonable installation position for the insulating part 70, so that the insulating part 70 on the mounting section is more naturally and precisely aligned with the trigger hole 501, effectively achieving the insulation effect, avoiding the risk of electric shock, and ensuring safe use.

[0050] Of course, since the mounting section 621 is bent relative to the connecting section 622, the rebound force of the metal spring 62 is increased when it is not pressed by the trigger rod, which helps the metal spring to spring back into place and separate from the contact, thus improving the safety of use.

[0051] like Figure 5 As shown, in a preferred embodiment, the food processing machine further includes a mounting bracket 80 for mounting a micro switch 60, and the handle 50 includes a handle bracket 51 fixed to the cup body 10 and a handle cover 52 fastened to the outside of the handle bracket 51. The mounting bracket 80 is pressed onto the handle bracket 51 by the handle cover 52.

[0052] The handle 50 includes a handle bracket 51 and a handle cover 52. The micro switch 60 is limited by the mounting bracket 80. At the same time, the mounting bracket 80 is pressed onto the handle bracket 51 by the handle cover 52, so as to reliably fix the mounting bracket 80 and the micro switch 60. The assembly is convenient. After installation, the handle cover 52 hides the two and avoids exposure.

[0053] More specifically, the mounting bracket 80 is equipped with a limit post, and the micro switch body is equipped with a limit hole that is interference-fitted with the limit post to achieve reliable assembly of the two.

[0054] like Figure 5As shown, in a preferred embodiment, the trigger rod 21 protrudes laterally from the cup lid 20, and the trigger hole 501 penetrates the side wall of the handle 50. The cup lid 20 is screwed onto the cup body 10, so that the trigger rod 21 laterally presses against the insulating member 70 on the metal spring 62. The cup lid 20 has a downwardly extending extension wall 22, and the trigger rod 21 protrudes laterally from the extension wall 22. The handle 50 has a receiving groove 53, and the trigger hole 501 is opened on the groove wall of the receiving groove 53. The cup lid 20 is screwed onto the cup body 10, so that the extension wall 22 is located in the receiving groove 53 and the trigger rod 21 is inserted into the trigger hole 501.

[0055] The cup lid 20 is screwed on, allowing for a tight axial fit between the lid and the cup body 10 during operation via a combination of a screw and a screw groove. This prevents the lid 20 from wobbling and ensures a stable fit. The trigger rod 21 is horizontally positioned and presses against the insulating element 70 on the metal spring 62. The trigger hole 501 extends vertically through the side wall of the handle 50. This design prevents water from easily entering through the trigger hole 501, even if water enters the lid 20 or if slurry overflows during processing. Even if water does enter, it will fall along the metal spring 62 and the insulating element 70, preventing water accumulation on the metal spring 62 and further reducing the risk of electric shock and improving safety.

[0056] By setting a receiving groove 53 in the handle 50, when the cup lid 20 is screwed on, the extension wall 22 is located in the receiving groove 53 and the trigger rod 21 is inserted into the trigger hole 501, so that the extension wall 22 is hidden in the receiving groove 53 and does not protrude. The extension wall 22 is flush with the outer wall of the handle 50, forming an integrated visual effect, which can give the user a visual prompt that the lid is closed in place, and the operating experience is better.

[0057] It is understandable that the cup lid 20 is not limited to being fixed to the cup body 10 by a screw-on method. In fact, in other embodiments, the cup lid 20 is fitted onto the cup body 10 from top to bottom, and a sealing ring is provided on the side wall of the cup lid 20 to seal and abut against the cup body 10 to position it on the cup body 10. With this configuration, the trigger hole 501 passes through the top wall of the handle, and the trigger rod 21 passes through the trigger hole from top to bottom to trigger the metal spring 62, thereby triggering the micro switch to close.

[0058] like Figure 6 As shown, unlike the bent metal springs described above, in this embodiment, the metal spring 62 extends straight from the body 61, and the insulating member 70 is fixed to the free end of the metal spring 62.

[0059] like Figure 6 As shown, in a preferred embodiment, the peripheral wall of the trigger rod 21 is provided with a backstop protrusion 23. The trigger rod 21 is inserted into the trigger hole 501, so that the backstop protrusion 23 extends into the handle 50 and stops and limits the edge of the trigger hole 501.

[0060] By setting anti-retraction protrusions 23 on the peripheral wall of the trigger rod 21, the cup lid 20 is positioned using a simple structure without the need for additional locking structures. This prevents the cup lid 20 from loosening during operation and causing the trigger rod 21 to exit the trigger hole 501, thus ensuring the stable operation of the food processing machine.

[0061] It should be noted that the anti-retraction protrusions provided in this embodiment can be applied to structures where the cup lid is screwed onto the cup body and structures where the cup lid is fitted onto the cup body from top to bottom.

[0062] Alternatively, a backstop rib can be provided at the edge of the trigger hole. During the cup lid closing process, the backstop protrusion passes over the backstop rib, and the trigger rib presses against the metal spring. After the cup lid is closed in place, the backstop protrusion abuts against the backstop rib, thereby achieving the anti-reverse effect of the cup lid. This ensures that the motor can work normally after the cup lid is closed, improving the working stability of the food processing machine.

[0063] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0064] 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.

[0065] 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 safe food processing machine, comprising a cup body, a cup lid, a motor, and a grinding device, wherein the grinding device is located within the cup body and is driven by the motor, the cup body has a handle fixed thereon, a microswitch for controlling the on / off state of the motor is installed inside the handle, and the cup lid has a protruding trigger rod, characterized in that, The micro switch includes a body, a metal spring fixed to the body at one end, and a contact disposed on the body. A trigger hole is opened on the outer wall of the handle. An insulating member is disposed on the metal spring that is directly opposite the trigger hole. The trigger rod passes through the trigger hole and presses against the insulating member on the metal spring, so that the metal spring triggers the contact.

2. The food processing machine according to claim 1, characterized in that, The insulating component is a sealing component. When the metal spring is not pressed by the trigger rod, the metal spring presses the sealing component against the edge of the trigger hole to seal the trigger hole.

3. A safe food processing machine according to claim 2, characterized in that, The metal spring includes a metal sheet and a spring abutting between the metal sheet and the body.

4. A safe food processing machine according to claim 2, characterized in that, The seal includes a sealing plane that covers the trigger hole and a sealing ring rib that abuts against the edge of the trigger hole.

5. A safe food processing machine according to claim 1, characterized in that, The metal spring includes a mounting section on which the insulating element is mounted and a connecting section connecting the mounting section to the body. The connecting section triggers the contact, and the mounting section is bent relative to the connecting section.

6. A safe food processing machine according to claim 1, characterized in that, The insulating component is an insulating sleeve that can be detachably fitted onto the outer periphery of the metal spring sheet; Alternatively, the insulating component and the metal spring can be injection molded as a single unit.

7. A safe food processing machine according to claim 1, characterized in that, The food processing machine also includes a mounting bracket for mounting the micro switch, and the handle includes a handle bracket fixed to the cup body and a handle cover fastened to the outside of the handle bracket, with the mounting bracket pressed against the handle bracket by the handle cover.

8. A safe food processing machine according to claim 1, characterized in that, The trigger rod protrudes laterally from the cup lid and the trigger hole penetrates through the side wall of the handle. The cup lid is screwed onto the cup body, so that the trigger rod laterally presses against the insulating part on the metal spring.

9. A safe food processing machine according to claim 8, characterized in that, The cup lid has a downwardly extending extension wall, the trigger rod is laterally protruding from the extension wall, the handle has a receiving groove, the trigger hole is opened on the groove wall of the receiving groove, the cup lid is screwed onto the cup body, so that the extension wall is located in the receiving groove and the trigger rod is inserted into the trigger hole.

10. A safe food processing machine according to claim 8, characterized in that, The trigger rod has a stop protrusion on its peripheral wall. The trigger rod is inserted into the trigger hole, so that the stop protrusion extends into the handle and stops and limits the movement with the edge of the trigger hole.

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