A food processor

CN224876566UActive Publication Date: 2026-10-23JOYOUNG CO LTD
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Patent Information

Application Number
CN202522194022.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-17
Publication Date
2026-10-23
Estimated Expiration
2035-10-17

AI Technical Summary

Technical Problem

[0009]本实用新型提供了一种食品加工机,既解决用户冲洗杯体时的水流易泼溅至触发孔而直接进入安装腔,导致微动开关遇水短路和漏电的技术问题,又无需通过在狭小空间单独安装密封件,从而解决整机安装难、装配效率低以及容易密封失效的技术问题

Benefits of technology

[0021]通过在所述摆动臂与所述触头之间设置安全间隙,使得用户开盖过程中,摆动臂由被触发杆抵压且抵压触头的状态,逐渐变为摆动臂与触头分离从而断开微动开关,然后再变为压紧在触发孔边缘。因此,确保遮挡件的压紧动作发生在微动开关断开之后,既能够避免摆动臂回弹不到位导致的密封失效,又保障开盖时先断电、后复位密封的效果,杜绝了因回弹偏差可能引发的微动开关断电延迟风险,保证开盖电机断电的安全可靠性,提升安全效果,同时实现开盖触发孔处的可靠密封效果。当然,在进行组装时,也提醒装配者保持摆动臂与所述触头之间的间隙,消除组装公差造成的断电延迟等风险。

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Abstract

The utility model relates to kitchen appliance technical field discloses a food processor including the cup body with the pulping chamber, the cover, the motor and the rubbing crusher, the cup body is fixed with the handle, the handle is equipped with the installation cavity for installing micro -switch, micro -switch is used for controlling the on -off electricity of motor, the cover is provided with the trigger rod, the cover covers the cup body after, the trigger rod triggers micro -switch and electrifies, micro -switch includes the body, the contact and the swing arm of setting in the body, the one end of swing arm is connected with the body, the other end is formed free end away from the body extension, the cavity wall of installation cavity is equipped with trigger hole, the free end of swing arm sets up the sheltering piece towards trigger hole, the sheltering piece covers trigger hole in the inside of installation cavity, when the cover is installed on the cup body, the trigger rod passes through trigger hole and presses the sheltering piece, to promote swing arm and trigger contact to make micro -switch electrify. The utility model utilizes the sheltering piece to have realized the dustproof and the impurity prevention effect to trigger hole, and the assembly is more simple and convenient.
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Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a 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 power-off upon opening the lid uses a magnetically driven microswitch. A first magnet is placed on the side wall of the lid, and a second magnet is placed on the free end of the microswitch's contact spring. When the lid is closed, the second magnet is repelled by the first magnet, causing the contact spring to move and triggering the microswitch's contacts. However, due to the high manufacturing cost of magnetically controlled switches, another method for power-off upon opening the lid uses a push-rod driven microswitch to reduce costs. Furthermore, push-rod driven switches eliminate the problem of magnet demagnetization leading to insensitive triggering, and the triggering is more reliable.

[0004] However, using a push rod driven micro switch requires opening a through hole in the wall of the mounting cavity. This allows dust, small food particles, and other debris from the external environment to easily enter the mounting cavity through the through hole, causing structural malfunctions within the mounting cavity. Furthermore, when users rinse the cup, water can easily splash directly onto the through hole, allowing water to quickly seep into the mounting cavity, leading to problems such as short circuits or leakage in the micro switch when exposed to water.

[0005] To address the aforementioned issues, the applicant disclosed a food processing machine in its earlier patent application CN217137750U. The cup lid contains a switch rod and an anti-detachment rod, while the cup body's mounting cavity contains a micro switch and a locking component. A through hole is formed in the cavity wall of the mounting cavity. 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 rod passes through the through hole, triggering the micro switch and energizing the motor. A sealing component is also added to the outer wall of the mounting cavity. This sealing component has a sealing hole corresponding to the through hole. The sealing hole can be opened by the pushing action of the switch rod and the anti-detachment rod, and can be reset and sealed by its own elasticity, thereby preventing water from entering the through hole. Specifically, a mounting groove is provided on the outer wall of the mounting cavity, and the sealing component is fixed within the narrow mounting groove; alternatively, the sealing component has a fixing part that passes through the cavity wall and engages with the inner wall of the mounting cavity.

[0006] However, the seals in the aforementioned patents require independent installation. During installation, the sealing hole of the seal, the switch rod, and the through hole of the mounting cavity must be aligned, demanding extremely high positional accuracy. Since the mounting cavity is located on the handle, and the seal is fixed in the mounting groove on the outer wall of the mounting cavity, the installation space is extremely limited, leading to low installation efficiency and high operational difficulty. Furthermore, the seal, exposed on the outer wall of the mounting cavity, is easily detached due to frequent impacts and collisions from the switch rod or accidental pulling by the user, resulting in unreliable fixation and seal failure. Moreover, the frequent impacts from the switch rod cause wear and aging, leading to the sealing hole opening and the inability to re-seal, resulting in seal failure and unreliable sealing.

[0007] Therefore, in the field of food processing machine technology, impurities are easily introduced into the trigger hole of the micro switch structure driven by the push rod. However, the installation of a sealing element to achieve a sealing of the trigger hole is difficult and prone to sealing failure. Currently, there is a lack of reliable solutions. Therefore, the applicant would like to conduct further in-depth research on these issues.

[0008] It should be noted that while other forms of microswitches exist in other fields, such as the microswitch assembly for an air purifier disclosed in patent CN223242958U, where the microswitch is fixed on a switch bracket and an insulating rocker plate that moves in the same direction as the actuating spring is installed near the guide hole, and the guide block abuts against the rocker plate to achieve contact with the actuating spring, the switch bracket increases the force-bearing area of ​​the actuating spring through the insulating rocker plate, which can effectively protect the microswitch and extend its service life; moreover, the rocker plate can cover the actuating spring inside the switch bracket, resulting in a more aesthetically pleasing overall appearance. Furthermore, this solution focuses on the air duct structure and filter component triggering requirements of the air purifier. Under normal use, the microswitch remains closed and energized; the combination of the microswitch and switch bracket, along with the separate insulating rocker plate on the switch bracket, results in a complex structure and a complex assembly process. Utility Model Content

[0009] This utility model provides a food processing machine that solves the technical problem that water splashes into the trigger hole and directly enters the installation cavity when the user rinses the cup, causing the micro switch to short-circuit and leak electricity when exposed to water. It also eliminates the need to install a seal separately in a confined space, thus solving the technical problems of difficult installation, low assembly efficiency, and easy seal failure.

[0010] The technical solution adopted in this utility model is as follows: This utility model provides a food processing machine, including a cup body with a pulping chamber, a lid that is fitted onto the cup body and seals with the pulping chamber, a motor, and a crushing device. The crushing device is located in the pulping chamber and is driven by the motor. The cup body is fixed with a handle, and the handle has a mounting cavity for installing a micro switch. The micro switch is used to control the on / off state of the motor. The lid has a protruding trigger rod. After the lid is fitted onto the cup body, the trigger rod triggers the micro switch to be energized. The micro switch includes a body, a contact disposed on the body, and a swing arm. One end of the swing arm is connected to the body, and the other end extends away from the body to form a free end. The cavity wall of the mounting cavity has a trigger hole. The free end of the swing arm is provided with a blocking member facing the trigger hole. The blocking member covers the trigger hole inside the mounting cavity. When the lid is installed on the cup body, the trigger rod passes through the trigger hole and presses against the blocking member to push the swing arm to trigger the contact, thereby energizing the micro switch.

[0011] The food processing machine provided by this utility model features a shielding component positioned with the free end of the microswitch's swing arm facing the trigger hole. This shielding component covers the trigger hole inside the mounting cavity, effectively preventing dust and impurities from entering the trigger hole and protecting the microswitch and other structures within the mounting cavity. Furthermore, it eliminates the need for a separate shielding component in the confined operating space of the mounting cavity, reducing installation difficulty and improving assembly efficiency. Specifically, during assembly, the shielding component and swing arm can be assembled together in the spacious operating space outside the mounting cavity. This assembly is not limited by the narrow space of the mounting cavity, making it easier and allowing the shielding component and microswitch to form a module. This enables the accurate installation of the shielding component simultaneously with the microswitch being fixed inside the mounting cavity, eliminating the hassle of aligning the shielding component separately. Modular assembly is simpler and improves the overall assembly efficiency of the machine.

[0012] Furthermore, the shielding component covers the trigger hole inside the mounting cavity, preventing it from being directly exposed on the outside. This avoids displacement, loosening, and protective failure caused by wear and impact from the external environment, resulting in a more durable and effective dust and debris protection effect, and more reliable protection. Simultaneously, when the cover is installed, the trigger rod only needs to pass through the trigger hole and press directly against the inner shielding component to push the swing arm to trigger the microswitch. This avoids the wear and failure of the seals in traditional technologies, reducing the probability of water entering the mounting cavity due to the user rinsing the cup, making the protective effect of the shielding component more durable and reliable.

[0013] In a preferred embodiment, the shielding element is a silicone element, and when the shielding element is not pressed by the trigger rod, the swing arm presses the silicone element against the edge of the trigger hole to seal the trigger hole.

[0014] Using the above solution, during assembly, only the microswitch with the silicone component needs to be inserted into the mounting cavity. The swing arm naturally applies pressure to the silicone component, eliminating the need for separate assembly of the silicone component in a confined space. This simplifies the installation process, reduces installation difficulty, and improves overall assembly efficiency. Under the pressure of the swing arm, the silicone component tightly covers the trigger hole from the inside of the mounting cavity without being exposed. This creates a reliable internal seal through the elastic sealing properties of the swing arm and the silicone component itself, effectively preventing water and dust damage. Simultaneously, it avoids wear and collisions caused by exposed silicone components, extending their lifespan and sealing durability, and enhancing the reliability of the seal at the trigger hole. Furthermore, when the cover is closed, the trigger rod passes through the trigger hole and presses against the silicone component to push the swing arm to trigger the microswitch's contacts. Compared to traditional technologies, this eliminates the need for additional resistance through the seal, ensuring smooth closing of the cover and improving the user's closing feel. In summary, the above solution reduces assembly difficulty and improves assembly efficiency while achieving waterproof and dustproof effects for the trigger hole. It also utilizes the insulating properties of the silicone parts to prevent water accumulation at the trigger hole, thus avoiding electric shock problems caused by water contact between the conductive components inside the micro switch and the user's finger. This prevents leakage problems in the micro switch and improves safety.

[0015] The shielding component is made of silicone, and when not pressed by the trigger rod, it is pressed against the edge of the trigger hole by the swing arm to achieve a seal. During installation, there is no need to assemble the seal separately in the narrow space of the installation cavity. Only the microswitch with the silicone shielding component needs to be installed. The silicone component covers the trigger hole inside the installation cavity and is not exposed. It uses the elastic sealing properties of the silicone component to tightly seal the trigger hole from the inside, completely blocking the path of impurities. It also avoids the protection failure caused by the exposed silicone component being worn or impacted. At the same time, it eliminates the cumbersome assembly steps of the independent seal and solves the problems of high installation difficulty and low efficiency caused by assembling the seal in a narrow space. Ultimately, it achieves a synergistic improvement in impurity protection, convenient installation and smooth closing, based on simplified installation and reliable sealing protection.

[0016] In a preferred embodiment, the silicone element includes a sealing plane that covers the trigger hole and a sealing ring rib protruding from the edge of the sealing plane, the sealing ring rib being disposed around the trigger hole and abutting against the edge of the trigger hole.

[0017] The sealing plane of the silicone component can directly form a large area of ​​shielding the trigger hole, preventing 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 installation cavity, and further enhancing the fit and sealing performance between the seal and the trigger hole. The sealing effect and insulation effect are enhanced simultaneously.

[0018] In a preferred embodiment, the micro switch further includes a spring abutting between the swing arm and the body. The trigger rod presses against the blocking member, causing the swing arm to compress the spring-loaded trigger contact. When the blocking member is not pressed by the trigger rod, the spring pushes the swing arm to press the blocking member against the edge of the trigger hole. Alternatively, the micro switch further includes a torsion spring connected between the swing arm and the body and a pivot shaft rotatably connecting the swing arm and the body. The trigger rod presses against the blocking member, causing the swing arm to compress the torsion spring-loaded trigger contact. When the blocking member is not pressed by the trigger rod, the torsion spring pushes the blocking member against the edge of the trigger hole.

[0019] Whether using a spring or a torsion spring, a more continuous elastic force can be provided to the swing arm. During the user's closing of the lid, the trigger rod passes through the trigger hole and presses against the blocking component, pushing the swing arm to compress the spring or torsion spring and trigger the contact. The spring or torsion spring accumulates elastic force. When the user opens the lid, the trigger rod loosens its pressure on the swing arm, and the spring or torsion spring, relying on its accumulated elastic force, can quickly push the swing arm back to its original position, causing the blocking component to return to its original position and press against the trigger hole. Therefore, after the lid is opened, the blocking component can reliably cover and seal the trigger hole from the inside of the mounting cavity. The elastic sealing properties of the silicone component then create a long-lasting and stable seal. Under the elastic force of the spring or torsion spring, the water pressure during rinsing prevents the blocking component from being forced open by the water pressure, thus making the seal more reliable.

[0020] In a preferred embodiment, when the blocking member is not pressed by the trigger rod, the swing arm presses the blocking member against the edge of the trigger hole, and there is a safety gap between the swing arm and the contact.

[0021] By setting a safety gap between the swing arm and the contact, during the user's opening process, the swing arm gradually changes from being pressed against the contact by the trigger rod to separating from the contact, thus disconnecting the microswitch, and then pressing against the edge of the trigger hole. Therefore, ensuring that the pressing action of the blocking component occurs after the microswitch is disconnected avoids sealing failure caused by the swing arm not fully rebounding, and guarantees the effect of power cut-off before resetting the seal when opening the cover. This eliminates the risk of delayed power-off of the microswitch due to rebound deviation, ensuring the safety and reliability of the power-off of the cover-opening motor, improving safety, and achieving a reliable seal at the trigger hole. Of course, during assembly, the assembler is also reminded to maintain the gap between the swing arm and the contact to eliminate risks such as delayed power-off caused by assembly tolerances.

[0022] In a preferred embodiment, the shielding member is an insulating member that is detachably connected to or integrally formed with the swing arm.

[0023] Because microswitches contain conductive components, if water enters or accumulates at the through-hole, when a user touches the damp through-hole, the water will 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. Therefore, a shielding component covers the trigger hole inside the mounting cavity, reducing the risk of water ingress. Simultaneously, the shielding component is an insulator, blocking the conductive path between water seeping into the trigger hole and the conductive components on the microswitch body, improving user safety. While ensuring safety, a traditional sealing structure is unnecessary, eliminating frictional interference between the trigger rod and the seal, thus avoiding additional frictional resistance when closing the lid. This makes closing the lid easier and ensures both safety and smooth operation.

[0024] In a preferred embodiment, the swing arm includes a mounting section forming the free end for mounting the shield and a connecting section that obliquely connects the mounting section to the body, the mounting section being bent relative to the connecting section.

[0025] By tilting the connecting section to the main body and cooperating with the contact to achieve the pressure triggering function, the triggering is reliable. Simultaneously, the mounting section is bent relative to the connecting section, providing an accurate and reasonable installation position for the shielding component. This allows the shielding component on the mounting section to more naturally and precisely align with the trigger hole, effectively providing shielding, waterproofing, and preventing electric shock hazards, ensuring safe use. Because the mounting section is bent relative to the connecting section, it increases the self-rebound force of the swing arm when not subjected to trigger rod pressure, helping the swing arm to spring back into position and separate from the contact, further enhancing safety.

[0026] In a preferred embodiment, the shielding member is detachably sleeved on the free end of the swing arm; or, the shielding member is injection molded integrally with the swing arm.

[0027] Regardless of the method used, the shielding component can effectively block the trigger hole, preventing water and dust ingress into the mounting cavity and posing a risk of electric shock to the user. The detachable shielding component facilitates assembly and allows for individual replacement during later maintenance, reducing repair costs. The use of an insulating component integrally molded with the swing arm enhances the connection stability between the shielding component and the swing arm, preventing displacement or detachment of the shielding component during long-term use and ensuring a durable and reliable shielding effect.

[0028] In a preferred embodiment, a limiting groove is provided on the outer side of the handle, the trigger hole passes through the groove wall of the limiting groove, the groove wall of the limiting groove is provided with a rib, the trigger rod is provided with a backstop groove that cooperates with the rib to stop, after the cover is installed on the cup body, the trigger rod passes through the trigger hole to press against the shielding member and the rib is located in the backstop groove.

[0029] By setting a limiting groove on the outside of the handle, the protruding rib in the limiting groove and the anti-reverse groove of the trigger rod cooperate to form a positioning structure. When the lid is installed on the cup, the trigger rod passes through the trigger hole and presses against the blocking part. At the same time, the protruding rib is just embedded in the anti-reverse groove of the trigger rod to form a stop cooperation, realizing the reliable positioning of the lid and the cup. This ensures that the pressure of the trigger rod against the blocking part and the swing arm is stable and the trigger position is accurate, avoiding the lid from loosening and causing the trigger rod to exit the trigger hole.

[0030] In a preferred embodiment, the cover has a downwardly extending extension wall, the trigger rod protrudes laterally from the extension wall, and after the cover is rotated and fitted onto the cup, the extension wall sinks into the limiting groove.

[0031] By rotating the lid and attaching it to the cup body, the extended wall sinks into the limiting groove, thus concealing the extended wall within the receiving groove without protruding. The extended wall is flush with the outer wall of the mounting cavity, creating a unified visual effect and providing the user with a visual indication that the lid is properly closed, resulting in a better user experience. Furthermore, rotating the lid and attaching it to the cup body, with the trigger rod positioned horizontally and the trigger hole horizontally penetrating the wall of the limiting groove, also reduces the risk of water ingress into the trigger hole.

[0032] In a preferred embodiment, the rib and the shielding member together shield the trigger hole. By using the shielding member to cover the inside of the trigger hole, while the rib covers the outside of the trigger hole, the rib reduces the exposed area of ​​the trigger hole while achieving the anti-retraction effect of the cover. This reduces the coverage area of ​​the shielding member and simplifies the structure.

[0033] In a preferred embodiment, the trigger hole extends vertically through the top of the handle, the cover fits over the cup body from top to bottom and is pressed onto the top of the handle, and the trigger rod passes through the trigger hole to energize the micro switch; or, the trigger hole extends horizontally through the side of the handle, the cover rotates to fit over the cup body, and the trigger rod passes through the trigger hole to energize the micro switch.

[0034] The trigger hole runs vertically through the entire device, allowing the microswitch to be triggered when the cover is pressed against the top of the base from top to bottom. This ensures reliable triggering and a unique installation position; if the cover is installed incorrectly, it cannot be pressed in, thus preventing users from installing the cover backwards. The trigger hole also runs horizontally through the side of the handle, allowing the cover to rotate and fit onto the cup body, further reducing the risk of water entering the trigger hole.

[0035] In a preferred embodiment, the trigger rod is provided with a backstop groove that cooperates with the edge stop of the trigger hole. After the cover is installed on the cup body, the trigger rod passes through the trigger hole and presses against the blocking member, and the edge of the trigger hole is located in the backstop groove.

[0036] By setting a backlash groove on the trigger rod, after the lid is installed on the cup body, the trigger rod passes through the trigger hole to press against the blocking component, and at the same time, the edge of the trigger hole is directly embedded in the backlash groove to form a stop fit. There is no need to set an additional rib structure, which simplifies the structure of the cup body and achieves reliable positioning of the lid and the cup body, ensuring that the pressure of the trigger rod against the blocking component and the swing arm is stable and the trigger position is accurate. 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: Figure 1 This is an exploded structural diagram of the food processing machine in Embodiment 1 of this utility model; Figure 2 This is a longitudinal cross-sectional view of the food processing machine in Embodiment 1 of this utility model; Figure 3 This is a cross-sectional view of the food processing machine when the cover is not closed in Embodiment 1 of this utility model; Figure 4 This is an exploded view of the micro switch and insulating component in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the exploded structure of the food processing machine in Embodiment 1 of this utility model from another angle; Figure 6 This is a schematic diagram of the engagement between the trigger rod and the swing arm after the cover is fully closed in Embodiment 1 of this utility model; Figure 7 This is a cross-sectional view of the food processing machine when the cover is not closed in Embodiment 2 of this utility model; Figure 8 This is a partially enlarged schematic diagram of the food processing machine in Embodiment 2 of this utility model; Figure 9 This is a cross-sectional view of the food processing machine when the cover is not closed in Embodiment 3 of this utility model; Figure 10 This is a partially enlarged schematic diagram of the food processing machine in Embodiment 3 of this utility model.

[0038] List of components and reference numerals: 10. Cup body; 20. Lid body; 21. Trigger rod; 22. Extension wall; 23. Anti-reverse groove; 30. Motor; 40. Crushing device; 50. Handle; 501. Trigger hole; 51. Handle bracket; 52. Handle cover; 53. Limiting groove; 60. Micro switch; 61. Body; 62. Swing arm; 621. Mounting section; 622. Connecting section; 63. Contact; 70. Shielding component; 80. Mounting bracket; 91. Spring; 92. Torsion spring; 93. Rotating shaft. Detailed Implementation

[0039] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] like Figure 1-6 As shown, in one embodiment, this utility model provides a food processing machine, including a cup body 10 with a pulping chamber, a lid 20 that is fitted onto the cup body 10 and seals with the pulping chamber, a motor 30, and a pulverizing device 40. The pulverizing device 40 is located inside the pulping chamber and is driven by the motor 30. The pulverizing device 40 can be a pulverizing blade or a moving grinding head. The cup body 10 is fixed with a handle 50, which has a mounting cavity for installing a micro switch 60. The micro switch 60 is used to control the on / off state of the motor 30. The lid 20 has a protruding trigger rod 21. After the lid 20 is fitted onto the cup body 10, the trigger rod 21 triggers the micro switch 60 to be energized. Figure 3 As shown, the micro switch 60 includes a body 61, a contact 63 disposed on the body 61, and a swing arm 62. One end of the swing arm 62 is connected to the body 61, and the other end extends away from the body 61 to form a free end. A trigger hole 501 is provided in the cavity wall of the mounting cavity. A blocking member 70 is provided on the free end of the swing arm 62 facing the trigger hole 501, and the blocking member 70 covers the trigger hole 501 inside the mounting cavity. Figure 6 As shown, when the cover 20 is installed on the cup body 10, the trigger rod 21 passes through the trigger hole 501 and presses against the shield 70 to push the swing arm 62 to trigger the contact 63, thereby energizing the micro switch 60.

[0045] The food processing machine provided in this embodiment uses a shielding member 70 to cover the trigger hole 501 from the free end of the swing arm 62 of the micro switch 60. This shielding member 70 covers the trigger hole 501 inside the mounting cavity, thus directly preventing dust and impurities from entering the trigger hole 501 and protecting the micro switch 60 and other structures inside the mounting cavity from normal operation. Furthermore, it eliminates the need for separate installation of the shielding member 70 in the confined operating space of the mounting cavity, reducing installation difficulty and improving assembly efficiency. Specifically, during assembly, the shielding member 70 and the swing arm 62 can be assembled together in the spacious operating space outside the mounting cavity. This assembly is not limited by the confined space of the mounting cavity, making assembly easier and allowing the shielding member 70 and the micro switch 60 to form a module. This allows for accurate installation of the shielding member 70 simultaneously when the micro switch 60 is fixed inside the mounting cavity, eliminating the hassle of separate alignment of the shielding member 70. Modular assembly is simpler and improves the overall assembly efficiency of the machine. Furthermore, the shield 70 covers the trigger hole 501 inside the mounting cavity, rather than being directly exposed on the outside of the trigger hole 501. This prevents the shield 70 from shifting, loosening, or failing due to wear and tear from the external environment or collisions, achieving a more durable and effective dust and debris protection effect, and making the protection more reliable. Simultaneously, when the cover 20 is installed, the trigger rod 21 only needs to pass through the trigger hole 501 and directly press against the inner shield 70 to push the swing arm 62 to trigger the micro switch 60. Compared to traditional technology, this eliminates the need to overcome the resistance of penetrating the seal, ensuring the smoothness of the cover 20's closing process and improving the user's closing feel.

[0046] It should be noted that this application does not limit the cooperation method between the blocking member 70 and the trigger hole 501. In fact, when the blocking member 70 is not pressed by the trigger rod 21, the blocking member 70 may completely or partially block the trigger hole 501. When the blocking member 70 is not pressed by the trigger rod 21, the cavity wall where the blocking member 70 and the trigger hole 501 are located may be pressed, in contact, or have a very small gap.

[0047] It is understandable that, regardless of which of the above-mentioned matching methods is adopted between the shield 70 and the trigger hole 501, since the micro switch 60 in the existing food processing machine is generally selected as a general type and size, it is difficult for the swing arm 62 of the micro switch 60 and the size of the trigger hole 501 in the mounting cavity to be perfectly matched. They are only aligned for triggering purposes. Therefore, in this application, regardless of which of the above-mentioned matching methods is adopted between the shield 70 and the trigger hole 501, the shield 70 can directly achieve the effect of preventing dust and impurities from the trigger hole 501. At the same time, the installation difficulty of the shield 70 is low and the overall assembly efficiency is high.

[0048] It should be noted that this application does not limit the specific cooperation method between the shielding member 70 and the trigger hole 501. This application will describe the specific structure of the shielding member 70 and the specific cooperation method between the shielding member 70 and the trigger hole 501.

[0049] Implementation Example 1, such as Figure 1-6 As shown, the shielding part 70 is a silicone part. When the shielding part 70 is not pressed by the trigger rod 21, the swing arm 62 presses the silicone part against the edge of the trigger hole 501 to seal the trigger hole 501.

[0050] The silicone component includes a sealing plane that blocks the trigger hole 501. More preferably, the silicone component includes a sealing plane that blocks the trigger hole 501 and a sealing ring rib protruding from the edge of the sealing plane, the sealing ring rib being disposed around the trigger hole 501 and abutting against the edge of the trigger hole 501.

[0051] During assembly, the microswitch 60 with its silicone component only needs to be inserted into the mounting cavity. The swing arm 62 naturally applies pressure to the silicone component, eliminating the need for separate assembly of the silicone component in a confined space. This simplifies the installation process, reduces installation difficulty, and improves overall assembly efficiency. Under the pressure of the swing arm 62, the silicone component tightly covers the trigger hole 501 from the inside of the mounting cavity without being exposed. This creates a reliable internal seal through the elastic sealing properties of the swing arm 62 and the silicone component itself, effectively preventing water and dust damage. It also avoids wear and collisions caused by exposed silicone components, extending their lifespan and sealing durability, and enhancing the reliability of the seal at the trigger hole 501. Furthermore, when the cover 20 is closed, the trigger rod 21 passes through the trigger hole 501 and presses against the silicone component to push the swing arm 62 to trigger the contact 63 of the microswitch 60. Compared to traditional technologies, this eliminates the need for additional resistance through the seal, ensuring smooth closing of the cover 20 and improving the user's closing feel. In summary, the above solution reduces assembly difficulty and improves assembly efficiency, while achieving waterproof and dustproof effects for the trigger hole 501. It also utilizes the insulating properties of the silicone component to prevent water accumulation at the trigger hole 501, thus avoiding electric shock caused by water contact between the conductive components inside the micro switch 60 and the user's wrist, preventing leakage problems in the micro switch 60, and improving safety in use.

[0052] The shielding part 70 is made of silicone. When not pressed by the trigger rod 21, it is pressed against the edge of the trigger hole 501 by the swing arm 62 to achieve a seal. During installation, there is no need to assemble the seal separately in the narrow space of the installation cavity. Only the micro switch 60 with the silicone shielding part 70 needs to be installed. The silicone part covers the trigger hole 501 inside the installation cavity and is not exposed. It can tightly seal the trigger hole 501 from the inside by utilizing the elastic sealing characteristics of the silicone part, completely blocking the path of impurities. It can also avoid the protection failure caused by the exposed silicone part being worn and impacted. At the same time, it eliminates the cumbersome assembly steps of the independent seal and solves the problems of high installation difficulty and low efficiency caused by assembling the seal in a narrow space. When the cover 20 is closed, the trigger rod 21 passes through the trigger hole 501 and presses against the silicone part to push the swing arm 62 to trigger the switch. The elastic fit of the silicone part will not add extra frictional resistance when closing. Finally, on the basis of simplifying the installation and ensuring the reliability of the sealing protection, it achieves a synergistic improvement in impurity protection, convenient installation and smooth closing.

[0053] The sealing plane of the silicone component can directly form a large area of ​​shielding the trigger hole 501, blocking external water from seeping into the trigger hole 501 and blocking the conductive path. The sealing ring rib can form a tight circumferential contact with the edge of the trigger hole 501, achieving a line seal effect, extending the water inlet path, preventing water from entering the installation cavity, and further strengthening the fit and sealing performance between the seal and the trigger hole 501. The sealing effect and insulation effect are enhanced simultaneously.

[0054] like Figure 3 , 4 As shown in this embodiment, the swing arm 62 is bent to have its own elasticity. When the blocking member 70 is not pressed by the trigger rod 21, the swing arm 62 presses the blocking member 70 against the edge of the trigger hole 501 by its own elasticity.

[0055] Preferably, such as Figure 4 As shown, the swing arm 62 includes a mounting section 621 forming a free end for mounting a shield 70 and a connecting section 622 obliquely connecting the mounting section 621 to the body 61. The mounting section 621 is bent relative to the connecting section 622. Preferably, the connecting section 622 further includes a transition portion and a connecting portion. The transition portion is bent relative to the connecting portion, the connecting portion is connected to the body 61, and the transition portion connects between the connecting portion and the mounting section 621.

[0056] Optionally, the shield 70 is detachably sleeved on the free end of the swing arm 62; or, the shield 70 is injection molded integrally with the swing arm 62.

[0057] By tilting the connecting section 622 to the body 61 and cooperating with the contact 63 to achieve the pressure triggering function, the triggering is reliable. At the same time, the mounting section 621 is bent relative to the connecting section 622, providing an accurate and reasonable installation position for the shielding member 70. This allows the shielding member 70 on the mounting section 621 to be more naturally and precisely aligned with the trigger hole 501, effectively providing a shielding effect, waterproofing, and avoiding the risk of electric shock, thus ensuring safe use. Because the mounting section 621 is bent relative to the connecting section 622, the self-rebound force of the swing arm 62 is increased when it is not pressed by the trigger rod 21, which helps the swing arm 62 to rebound into place and separate from the contact 63, improving the safety of use.

[0058] Understandably, the use of a detachable shield 70 facilitates assembly and allows for individual replacement during later maintenance, reducing repair costs; the use of an insulating component that is injection molded into the swing arm 62 can improve the connection stability between the shield 70 and the swing arm 62, preventing the shield 70 from shifting or falling off during long-term use, and ensuring a long-lasting and reliable shielding effect.

[0059] More preferably, the mounting section 621 is arranged parallel to the trigger hole 501 so that the shielding member 70 can press and seal the trigger hole 501.

[0060] In this embodiment, preferably, when the blocking member 70 is not pressed by the trigger rod 21, the swing arm 62 presses the blocking member 70 against the edge of the trigger hole 501, and there is a safety gap S between the swing arm 62 and the contact 63. Preferably, the safety gap S satisfies 0.5mm≤S≤2mm, for example, S is 1mm or 1.5mm.

[0061] By setting a safety gap between the swing arm 62 and the contact 63, during the user's opening process, the swing arm 62 gradually changes from being pressed against the contact 63 by the trigger rod 21 to separating from the contact 63, thus disconnecting the micro switch 60, and then pressing against the edge of the trigger hole 501. Therefore, ensuring that the pressing action of the blocking component 70 occurs after the micro switch 60 is disconnected not only avoids sealing failure caused by the swing arm 62 not rebounding properly, but also ensures the effect of power-off before resetting the seal during opening, eliminating the risk of delayed power-off of the micro switch 60 due to rebound deviation, ensuring the safety and reliability of the power-off of the opening motor 30, improving safety, and achieving a reliable sealing effect at the opening trigger hole 501. Of course, during assembly, the assembler is also reminded to maintain the gap between the swing arm 62 and the contact 63 to eliminate the risk of delayed power-off caused by assembly tolerances.

[0062] Of course, when the blocking member 70 is not pressed by the trigger rod 21, the swing arm 62 presses the blocking member 70 against the edge of the trigger hole 501, and the contact between the swing arm 62 and the contact 63 is still within the protection scope of this application.

[0063] Additionally, it should be noted that this embodiment and other embodiments do not limit the structure of the contact 63 of the micro switch 60. For example, in this embodiment, the contact 63 can be a movable contact 63. Correspondingly, a stationary contact is provided inside the body 61 of the micro switch 60. When the cover 20 is installed on the cup body 10, the trigger rod 21 passes through the trigger hole 501 and presses against the blocking member 70 to push the swing arm 62 to trigger the contact 63 to move to contact the stationary contact. The micro switch 60 is energized, and the motor 30 can be started.

[0064] Alternatively, the contact 63 can be a stationary contact that is not movable. When the cover 20 is installed on the cup body 10, the trigger rod 21 passes through the trigger hole 501 and presses against the blocking member 70 to push the swing arm 62 to contact the stationary contact 63, the micro switch 60 is energized, and the motor 30 can be started.

[0065] Implementation Example 2, such as Figure 7 , 8 As shown, the difference between this embodiment and embodiment 1 is the way the blocking member 70 is pressed against the trigger hole 501. In this embodiment, the micro switch 60 also includes a spring 91 that abuts against the swing arm 62 and the body 61. The trigger rod 21 presses against the blocking member 70, causing the swing arm 62 to compress the spring 91 to trigger the contact 63. When the blocking member 70 is not pressed by the trigger rod 21, the spring 91 pushes the swing arm 62 to press the blocking member 70 against the edge of the trigger hole 501.

[0066] Preferably, in this embodiment, when the blocking member 70 is not pressed by the trigger rod 21, the swing arm 62 presses the blocking member 70 against the edge of the trigger hole 501, and there is a safe gap between the swing arm 62 and the contact 63.

[0067] By setting a safety gap between the swing arm 62 and the contact 63, during the user's opening process, the swing arm 62 gradually changes from being pressed against the contact 63 by the trigger rod 21 to separating from the contact 63, thus disconnecting the micro switch 60, and then pressing against the edge of the trigger hole 501. Therefore, ensuring that the pressing action of the blocking component 70 occurs after the micro switch 60 is disconnected not only avoids sealing failure caused by the swing arm 62 not rebounding properly, but also ensures the effect of power-off before resetting the seal during opening, eliminating the risk of delayed power-off of the micro switch 60 due to rebound deviation, ensuring the safety and reliability of the power-off of the opening motor 30, improving safety, and achieving a reliable sealing effect at the opening trigger hole 501. Of course, during assembly, the assembler is also reminded to maintain the gap between the swing arm 62 and the contact 63 to eliminate the risk of delayed power-off caused by assembly tolerances.

[0068] Implementation Example 3, such as Figure 9 , 10As shown, the difference between this embodiment and embodiment 1 is the way the blocking member 70 is pressed against the trigger hole 501. In this embodiment, the micro switch 60 also includes a torsion spring 92 connected between the swing arm 62 and the body 61 and a rotating shaft 93 that rotatably connects the swing arm 62 and the body 61. The trigger rod 21 presses against the blocking member 70, causing the swing arm 62 to compress the torsion spring 92 and trigger the contact 63. When the blocking member 70 is not pressed by the trigger rod 21, the torsion spring 92 pushes the blocking member 70 to press against the edge of the trigger hole 501.

[0069] Understandably, both spring 91 and torsion spring 92 can provide more continuous elastic force to the swing arm 62. During the user's closing process, the trigger rod 21 passes through the trigger hole 501 and presses against the blocking part 70, pushing the swing arm 62 to compress the spring 91 or torsion spring 92 and trigger the contact 63, thus accumulating elastic force. When the user opens the lid, the trigger rod 21 loosens its pressure on the swing arm 62, and the spring 91 or torsion spring 92, relying on its accumulated elastic force, can quickly push the swing arm 62 back to its original position, causing the blocking part 70 to return to its original position and press against the trigger hole 501. Therefore, after the lid is opened, the blocking part 70 can always reliably cover and seal the trigger hole 501 from the inside of the mounting cavity, and the elastic sealing characteristics of the silicone part form a long-lasting and stable sealing effect. Under the elastic force of the spring 91 or torsion spring 92, the water pressure of the rinsing water is prevented from opening the blocking part 70 during the user's rinsing of the cup, thus making the sealing protection more reliable.

[0070] Preferably, in this embodiment, when the blocking member 70 is not pressed by the trigger rod 21, the swing arm 62 presses the blocking member 70 against the edge of the trigger hole 501, and there is a safe gap between the swing arm 62 and the contact 63.

[0071] By setting a safety gap between the swing arm 62 and the contact 63, during the user's opening process, the swing arm 62 gradually changes from being pressed against the contact 63 by the trigger rod 21 to separating from the contact 63, thus disconnecting the micro switch 60, and then pressing against the edge of the trigger hole 501. Therefore, ensuring that the pressing action of the blocking component 70 occurs after the micro switch 60 is disconnected not only avoids sealing failure caused by the swing arm 62 not rebounding properly, but also ensures the effect of power-off before resetting the seal during opening, eliminating the risk of delayed power-off of the micro switch 60 due to rebound deviation, ensuring the safety and reliability of the power-off of the opening motor 30, improving safety, and achieving a reliable sealing effect at the opening trigger hole 501. Of course, during assembly, the assembler is also reminded to maintain the gap between the swing arm 62 and the contact 63 to eliminate the risk of delayed power-off caused by assembly tolerances.

[0072] It should be noted that the shielding component provided by this utility model is not limited to using silicone components to achieve a sealing effect. In fact, in other embodiments, the shielding component 70 is an insulating component to prevent leakage. Of course, the insulating component can be the aforementioned silicone component or a hard plastic component.

[0073] Preferably, the insulating member is detachably connected to the swing arm 62. Alternatively, the shielding member 70 is an insulating member integrally formed with the swing arm 62.

[0074] More specifically, the shielding member 70 may be sleeve-shaped and sleeved onto the free end of the swing arm 62. In other embodiments, the shielding member 70 may be plate-shaped and injection molded integrally with the swing arm 62; or, the swing arm 62 may be made of non-metallic material, and the shielding member 70 and the swing arm 62 may be a single piece.

[0075] Since the microswitch 60 itself contains conductive components, if water enters or accumulates at the through-hole, when a user touches the damp through-hole, the water will act as a conductive medium, connecting the finger to the conductive components of the microswitch 60, posing a risk of electric shock and making it unsafe to use. Therefore, the shield 70 is an insulating component that can block the conductive path between water that may seep into the trigger hole 501 and the conductive components on the microswitch 60 body 61, improving user safety. While ensuring safety, there is no need for a traditional sealing structure, eliminating frictional interference between the trigger rod 21 and the seal, thus avoiding additional frictional resistance when closing the lid. This makes closing the lid easier and ensures both safety and smooth operation.

[0076] It should be noted that this utility model does not limit the location of the trigger hole. For example, in a preferred embodiment, referring to... Figure 3 As shown, a limiting groove 53 is provided on the outer side of the handle 50, and a trigger hole 501 passes through the groove wall of the limiting groove 53. The groove wall of the limiting groove 53 is provided with a rib, and the trigger rod 21 is provided with a backstop groove 23 that cooperates with the rib. After the cover 20 is installed on the cup body 10, the trigger rod 21 passes through the trigger hole 501 and presses against the blocking member 70, and the rib is located in the backstop groove 23.

[0077] By setting a limiting groove 53 on the outside of the cup body 10 mounting part, the protruding rib in the limiting groove 53 and the anti-retraction groove 23 of the trigger rod 21 cooperate to form a positioning structure. When the cover 20 is installed on the cup body 10, the trigger rod 21 passes through the trigger hole 501 and presses against the blocking member 70. At the same time, the protruding rib is just embedded in the anti-retraction groove 23 of the trigger rod 21 to form a stop cooperation, so as to realize the reliable positioning of the cover 20 and the cup body 10, ensure that the pressure of the trigger rod 21 against the blocking member 70 and the swing arm 62 is stable and the trigger position is accurate, and avoid the cover 20 from loosening and causing the trigger rod 21 to exit the trigger hole 501.

[0078] Understandably, in this embodiment, the lid 20 can be either a rotating lid mounted on the cup body 10 or a top and bottom lid mounted on the cup body 10. Specifically, the trigger hole extends vertically through the top of the handle, the lid closes onto the cup body from top to bottom and presses against the top of the handle, and the trigger rod passes through the trigger hole to energize the micro switch; or, the trigger hole extends horizontally through the side of the handle, the lid rotates onto the cup body, and the trigger rod passes through the trigger hole to energize the micro switch.

[0079] The trigger hole runs vertically through the entire device, allowing the microswitch to be triggered when the cover is pressed against the top of the base from top to bottom. This ensures reliable triggering and a unique installation position; if the cover is installed incorrectly, it cannot be pressed in, thus preventing users from installing the cover backwards. The trigger hole also runs horizontally through the side of the handle, allowing the cover to rotate and fit onto the cup body, further reducing the risk of water entering the trigger hole.

[0080] Preferably, such as Figure 1 As shown, the cover 20 has a downwardly extending extension wall 22, and the trigger rod 21 protrudes laterally from the extension wall 22. After the cover 20 is rotated and installed on the cup body 10, the extension wall 22 sinks into the limiting groove 53. More preferably, the rib and the blocking member 70 together block the trigger hole 501.

[0081] Of course, in other embodiments, the trigger hole extends through the top of the handle from top to bottom, and the cover fits over the cup body from top to bottom and is pressed onto the top of the handle.

[0082] The above-described embodiment features a compact structure, which helps reduce the size and makes it easy for users to hold and handle, thus providing convenience. By rotating the lid 20 onto the cup body 10, the extension wall 22 sinks into the limiting groove 53, thus concealing the extension wall 22 within the limiting groove 53 without protruding. The extension wall 22 is flush with the outer wall of the mounting cavity, creating a unified visual effect and providing the user with a visual indication that the lid is properly closed, resulting in a better user experience. Furthermore, rotating the lid 20 onto the cup body 10, with the trigger rod 21 positioned horizontally and the trigger hole 501 horizontally penetrating the wall of the limiting groove 53, also reduces the risk of water ingress into the trigger hole 501.

[0083] By using the shielding component 70 to shield the inside of the trigger hole 501, and at the same time using the rib to shield the outside of the trigger hole 501, the rib reduces the exposed area of ​​the trigger hole 501 while achieving the anti-retraction effect of the cover 20. This reduces the coverage area of ​​the shielding component 70 and simplifies the structure.

[0084] It should be noted that this utility model does not limit the fixing method of the micro switch, for example... Figure 5As shown, the food processor also includes a mounting bracket 80 for mounting the micro switch 60. 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 against the handle bracket 51 by the handle cover 52. More specifically, the mounting bracket 80 is provided with a limiting post, and the body of the micro switch is provided with a limiting hole that is interference-fitted with the limiting post to achieve reliable assembly of the two.

[0085] 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.

[0086] Additionally, it should be noted that the anti-retraction method of the cover in this application is not limited to the one described above. In other embodiments, the trigger rod is provided with an anti-retraction groove that cooperates with the edge stop of the trigger hole. After the cover is installed on the cup body, the trigger rod passes through the trigger hole and presses against the blocking member, and the edge of the trigger hole is located in the anti-retraction groove.

[0087] By setting a backlash groove on the trigger rod, after the lid is installed on the cup body, the trigger rod passes through the trigger hole to press against the blocking component, and at the same time, the edge of the trigger hole is directly embedded in the backlash groove to form a stop fit. There is no need to set an additional rib structure, which simplifies the structure of the cup body and achieves reliable positioning of the lid and the cup body, ensuring that the pressure of the trigger rod against the blocking component and the swing arm is stable and the trigger position is accurate.

[0088] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0089] 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.

[0090] 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 food processing machine, comprising a cup body having a pulping chamber, a lid fitted onto the cup body and sealingly fitted with the pulping chamber, a motor, and a pulverizing device, wherein the pulverizing device is located within the pulping chamber and is driven by the motor, the cup body is fixedly provided with a handle, the handle having a mounting cavity for mounting a micro switch, the micro switch being used to control the on / off state of the motor, the lid body having a protruding trigger rod, and after the lid body is fitted onto the cup body, the trigger rod triggers the micro switch to energize, characterized in that... The micro switch includes a body, a contact disposed on the body, and a swing arm. One end of the swing arm is connected to the body, and the other end extends away from the body to form a free end. A trigger hole is provided in the cavity wall of the mounting cavity. A blocking member is disposed on the free end of the swing arm facing the trigger hole. The blocking member covers the trigger hole inside the mounting cavity. When the cover is installed on the cup body, the trigger rod passes through the trigger hole and presses against the blocking member to push the swing arm to trigger the contact and energize the micro switch.

2. The food processing machine according to claim 1, characterized in that, The shielding component is made of silicone. When the shielding component is not pressed by the trigger rod, the swing arm presses the silicone component against the edge of the trigger hole to seal the trigger hole.

3. A food processing machine according to claim 2, characterized in that, The silicone component includes a sealing plane that covers the trigger hole and a sealing ring rib protruding from the edge of the sealing plane. The sealing ring rib is arranged around the trigger hole and abuts against the edge of the trigger hole.

4. A food processing machine according to claim 1 or 2, characterized in that, The micro switch also includes a spring abutting between the swing arm and the body. The trigger rod presses against the blocking member, causing the swing arm to compress the spring trigger contact. When the blocking member is not pressed by the trigger rod, the spring pushes the swing arm to press the blocking member against the edge of the trigger hole. Alternatively, the micro switch may further include a torsion spring connected between the swing arm and the body, and a rotating shaft that rotatably connects the swing arm and the body. The trigger rod presses against the blocking member, causing the swing arm to compress the torsion spring trigger contact. When the blocking member is not pressed by the trigger rod, the torsion spring pushes the blocking member to press against the edge of the trigger hole.

5. A food processing machine according to claim 1, characterized in that, When the blocking member is not pressed by the trigger rod, the swing arm presses the blocking member against the edge of the trigger hole, and there is a safe gap between the swing arm and the contact. Alternatively, the shielding component may be an insulating component that is detachably connected to or integrally formed with the swing arm.

6. A food processing machine according to claim 1, characterized in that, The swing arm includes a mounting section forming the free end for mounting the shield and a connecting section that obliquely connects the mounting section to the body, the mounting section being bent relative to the connecting section; Alternatively, the shielding member may be detachably sleeved onto the free end of the swing arm; Alternatively, the shielding component and the swing arm can be injection molded as a single unit.

7. A food processing machine according to claim 1, characterized in that, A limiting groove is provided on the outer side of the handle, and the trigger hole passes through the groove wall of the limiting groove. The groove wall of the limiting groove is provided with a rib, and the trigger rod is provided with a backstop groove that cooperates with the rib. After the cover is installed on the cup body, the trigger rod passes through the trigger hole and presses against the shield, and the rib is located in the backstop groove.

8. A food processing machine according to claim 7, characterized in that, The cover has a downwardly extending extension wall, and the trigger rod protrudes laterally from the extension wall. After the cover is rotated and installed on the cup, the extension wall sinks into the limiting groove. Alternatively, the rib, together with the shielding member, can shield the trigger hole.

9. A food processing machine according to claim 1, characterized in that, The trigger hole extends vertically through the top of the handle; the cover fits over the cup body from top to bottom and is pressed onto the top of the handle; the trigger rod passes through the trigger hole to energize the micro switch. Alternatively, the trigger hole extends laterally through the side of the handle, the cover is rotated and fitted onto the cup body, and the trigger rod passes through the trigger hole to energize the micro switch.

10. A food processing machine according to claim 1, characterized in that, The trigger rod is provided with a backstop groove that cooperates with the edge stop of the trigger hole. After the cover is installed on the cup body, the trigger rod passes through the trigger hole and presses against the shielding member, and the edge of the trigger hole is located in the backstop groove.