Food processor safe to use

Abstract

The utility model relates to a food processor safe to use, which comprises a base provided with a motor and an active magnetic disk assembly; the cup body assembly is installed on the machine base, and the cup body assembly comprises a cup body and a smashing device detachably installed in the cup body; the crushing device comprises a crushing part, a driven magnetic disk assembly which is magnetically driven by the driving magnetic disk assembly and drives the crushing part to work, and an inner magnetic part; the locking device is arranged outside the cup body, is used for locking and unlocking the crushing device, and comprises a control piece, an outer magnetic piece which is magnetically attracted with the inner magnetic piece, and a reset piece; wherein the control piece is arranged at the bottom of the cup body assembly and extends out of the outer side wall of the cup body assembly, and the control piece is operated to push the outer magnetic piece to be away from and unlock the inner magnetic piece; the machine base can push the reset piece and push the outer magnetic piece to be close to the inner magnetic piece so as to lock the smashing device. The outer magnetic part is pushed by the control part to be reliably kept at the unlocking position, a user can conveniently operate the crushing device, and the outer magnetic part is ensured to reliably return to the locking position by the reset part.

Description

TECHNICAL FIELD

[0001] The utility model relates to food processing field especially, it is a kind of food processor with base and cup, and base and cup are processed using magnetic non-contact transmission between base and cup. BACKGROUND

[0002] The existing wall breaking machine or food processor etc. usually include base, cup body assembly detachably mounted on the base, the motor is arranged in the base, the cup body assembly is provided with cup for accommodating processing food material, and the comminuting element for comminuting processing food material, the motor rotates to drive the comminuting element to rotate, to realize cutting and comminuting processing of food material in cup. Wall breaking machine relies on comminuting element to comminute food material at high speed, so the motor and comminuting element need to be in high-speed rotating state during working process, on the one hand, the motor itself and the lower coupling driven by the motor will produce vibration and noise when driving the upper coupling, on the other hand, the impact generated by high-speed collision between comminuting element and food material will also be transmitted to the lower coupling through the upper coupling in reverse direction and react on the motor, so that the vibration and noise of wall breaking machine increase during working, and the user experience is poor. Therefore, how to reduce the reaction force of comminuting element on motor, even cut off the mechanical transmission between them, becomes the primary problem to solve vibration and noise.

[0003] In order to solve the technical problem of vibration and noise, the applicant proposes a non-contact transmission scheme, such as a non-contact transmission soybean milk machine disclosed in Chinese utility model patent CN201020015043.4, the motor and the comminuting cutter are provided with magnetic non-contact upper coupling and lower coupling, including upper and lower transmission mode, inner and outer transmission mode, since the couplings are not in direct contact, the noise and vibration are obviously reduced during working. But in the above scheme, the upper coupling and the lower coupling are still fixedly connected with the head and the cup cover, and cannot reduce the connecting structure provided for installing the upper coupling and the lower coupling on the head and the cup cover, and the upper coupling and the lower coupling also cannot be disassembled, which has many inconveniences in use.

[0004] On this basis, the applicant further proposes an improved non-contact transmission scheme. A food processor with indirect transmission is disclosed in Chinese Utility Model Patent CN201120194553.7, which includes a driving coupling arranged on the power output shaft of the motor and a driven coupling connected with the crushing cutter. The driven coupling is arranged with a certain floating space in the axial direction, and the crushing cutter can produce appropriate sliding in the axial direction to separate the jammed material and make the crushing cutter work normally. This scheme can set the cup body into a bottom completely closed structure without mechanical connection holes at the bottom to better solve the problem of liquid leakage of the stirring cup. At the same time, in this scheme, the driven coupling connected with the crushing cutter can be detached from the container, which facilitates the cleaning of the crushing cutter and the driven coupling, and different crushing functions can also be realized by replacing different crushing cutters and driven couplings. However, the detachable crushing cutter and driven coupling assembly has the following problems: when the user operates the cup body or the container, for example, when pouring the slurry in the cup body or the container, the crushing cutter and the driven coupling will fall off from the cup body or the container, which may cause potential risk of cutting the user.

[0005] In order to avoid the disconnection between the crushing cutter and the cup body, the prior art also discloses a magnetic fixing scheme. A cutter disc assembly is disclosed in Chinese Utility Model Patent CN202321907134.2, the center of the disc body of the cutter disc is provided with a positioning member, a magnetic drive cutter assembly is sleeved on the positioning member, and magnetic attraction members and attracted members are arranged between the magnetic drive cutter assembly and the positioning member for mutual magnetic attraction, which solves the problems of flying out of the magnetic drive cutter assembly and falling out of the magnetic drive cutter assembly from the stirring cup to hurt people.

[0006] However, such a scheme still has technical defects for users: whether it is a mechanical fixing structure or a magnetic fixing structure, the purpose of its arrangement is to strengthen the installation strength between the cutter and the cup body to avoid the cutter from falling off the cup body during normal operation. For the scheme using a mechanical fixing structure, the friction of the mechanical fixing structure can be increased, or a buckle that cooperates with each other can be arranged between the cutter and the cup body, but such a scheme makes the user first remove the fixing structure when operating the cutter, which becomes cumbersome and complicated, and the complicated fixing structure also brings inconvenience in cleaning. Similarly, the magnetic attraction scheme requires a large enough magnetic attraction force between the magnetic attraction members and the attracted members to avoid the cutter from falling off the positioning member, but the user also needs to overcome the magnetic attraction force to remove the cutter when operating, which also brings inconvenience in operation. The positioning member and the magnetic attraction member also bring inconvenience in cleaning. SUMMARY

[0007] The purpose of the present application is to provide a safe food processor, to solve the problem in the prior art that the magnetic drive of the crushing device can be installed in the cup body and can ensure sufficient safety in the cup body, and the user can easily disassemble the crushing device without generating a reaction force, thereby causing the installation to be contradictory in that the interaction force is large and small, and the safety risk caused by the user forgetting to reset the locking device, and the user's safety and convenient operation cannot be satisfied at the same time.

[0008] In order to solve the above technical problems, the present application provides a safe food processor, wherein the food processor comprises a base provided with a motor and a driving magnetic disk assembly driven by the motor; a cup body assembly detachably mounted on the base, the cup body assembly comprising a cup body, a crushing device detachably mounted on the inside bottom of the cup body; the crushing device comprises a crushing piece, a driven magnetic disk assembly magnetically driven by the driving magnetic disk assembly and driving the crushing piece to work, and an inner magnetic piece; a locking device provided outside the cup body for locking and unlocking the crushing device, comprising an operating piece, an outer magnetic piece magnetically attracted to the inner magnetic piece, and a reset piece; wherein the operating piece is provided on the bottom of the cup body assembly and extends out of the outer sidewall of the cup body assembly, and the operating piece is operated to push the outer magnetic piece away from the inner magnetic piece to unlock the crushing device; the base can push the reset piece and push the outer magnetic piece close to the inner magnetic piece to lock the crushing device.

[0009] Preferably, the cup body is provided with a locking position and an unlocking position for limiting the operating piece, and the operating piece is operated from the locking position to the unlocking position to make the outer magnetic piece away from the inner magnetic piece, and the reset piece pushes the operating piece from the unlocking position to the locking position.

[0010] Preferably, the sidewall of the cup body is provided with an operating groove for the operating piece to extend out.

[0011] Preferably, the cup body is provided with a limiting block matched with the operating piece, and the limiting block and the operating piece are provided with a locking position and an unlocking position matched with each other.

[0012] Preferably, the cup body is provided with a magnetic attraction position and a separation position for limiting the outer magnetic piece, and the operating piece is operated to drive the outer magnetic piece from the magnetic attraction position to the separation position, and the reset piece pushes the outer magnetic piece from the separation position to the magnetic attraction position.

[0013] Preferably, the reset piece comprises a reset rod provided on the bottom of the cup body, and the reset rod is moved by the base to push the inner magnetic piece to lock the crushing device.

[0014] Preferably, the cup body assembly and the outer magnetic component are provided with a mutually cooperating guide groove and guide post. The guide groove extends radially along the cup body assembly, and the outer magnetic component reciprocates radially along the guide groove to move closer to or further away from the inner magnetic component.

[0015] Preferably, the cup body assembly and the outer magnetic component are further provided with a guide groove and a guide post that cooperate with each other. The guide groove extends circumferentially along the cup body assembly, and the outer magnetic component reciprocates circumferentially along the guide groove to move closer to or further away from the inner magnetic component.

[0016] Preferably, the control member and the external magnetic member are further provided with a mutually cooperating pushing surface and a sliding surface, and the pushing surface or sliding surface has an angle with the moving direction of the control member.

[0017] Preferably, the locking device further includes an elastic element for pushing the external magnetic element to reset; or, the locking device further includes an elastic element for pushing the operating element to reset; or, the locking device further includes an elastic element for pushing the reset element to reset.

[0018] Compared with the prior art, this application has at least the following technical effects:

[0019] 1. This application continues the applicant's technical direction in non-contact transmission, employing a mutually magnetically attracted active and driven magnetic disk assembly to achieve power transmission between the motor and the pulverizing component, fundamentally preventing the pulverizing component from transmitting vibration and noise to the motor during operation. The pulverizing device is detachably mounted at the bottom of the cup, allowing it to fully conform to the cup bottom and thus close to the active magnetic disk assembly of the base, reducing the distance between the active and driven magnetic disk assemblies and increasing the magnetic attraction between them. Building upon this, the cup assembly further features a locking device on its exterior that magnetically attracts the pulverizing device. This locking device magnetically attracts the internal magnetic component within the pulverizing device to prevent it from detaching from the cup during non-user operation. Furthermore, to ensure the pulverizing device is securely locked within the cup assembly and avoids the technical problem of it flying out or falling off during user operation, the internal and external magnetic components in this application possess sufficient magnetic attraction.

[0020] Further analysis by the applicant reveals that, for the user, the crushing device is only taken out during a specific time period; at other times, the crushing device remains locked. Therefore, by simply releasing the locking effect of the outer magnetic component on the inner magnetic component during the taking-out phase, it is possible to maintain a sufficiently strong mutual magnetic attraction without affecting the user's normal taking-out operation. This satisfies both user safety and ease of use, thereby solving the technical problem in existing technologies where simply adding a magnetic lock affects user operation. Therefore, the present application's solution includes a locking structure in the cup assembly. First, the locking structure reliably locks the crushing device within the cup assembly. Furthermore, the locking device also includes a manipulator located at the bottom of the cup assembly and protruding from the outer wall of the cup assembly. By operating the manipulator, the outer magnetic component can be pushed away from the inner magnetic component. In the normal locked state, the external magnetic component and the internal magnetic component inside the crushing device are magnetically attracted to each other. This magnetic attraction ensures the crushing device is stably and reliably installed within the cup assembly. Whether during operation or user handling of the cup assembly, there is no risk of the crushing device flying out or falling off, guaranteeing the safety and reliability of the food processor. When the user needs to remove the crushing device, they operate the control mechanism to push the external magnetic component away from the internal magnetic component, increasing the distance between their magnetic poles. According to Coulomb's law, the magnetic force between two magnets is inversely proportional to the square of the distance between them. Therefore, as the distance between the external and internal magnetic components increases, the magnetic force between them weakens rapidly, eventually reaching a point where the user cannot perceive the magnetic force, allowing for easy removal of the crushing device from the cup assembly.

[0021] The external magnetic component is driven by the aforementioned control element. The control element can be directly connected to the external magnetic component to directly drive it, or it can be driven via an intermediate connector. For example, a connecting rod located on the cup assembly can be provided between the control element and the external magnetic component. Driving the control element moves the connecting rod, which in turn moves the external magnetic component. Furthermore, magnetic transmission can be used between the control element and the external magnetic component. For instance, the bottom of the cup assembly has a closed cavity, the external magnetic component is installed in the cavity, and magnets that magnetically engage with each other are provided between the control element and the external magnetic component. Driving the control element moves the external magnetic component.

[0022] The external magnetic component is used to unlock the internal magnetic component, allowing the user to easily retrieve the grinding device. However, if the external magnetic component fails to return to its locked position in time, it may not effectively lock the grinding device, posing a safety risk. Therefore, this application further incorporates a reset component into the locking device. When the cup assembly is placed on the base, the reset component is pushed by the base to further push the external magnetic component back to its locked position against the internal magnetic component. This ensures that the locking device reliably locks the grinding device within the cup assembly, improving the safety and reliability of the food processor.

[0023] 2. A locking and unlocking position for the control element is directly provided on the side wall of the cup body. When operating the control element, the user can easily push it from the locked position to the unlocked position, thus facilitating the removal of the grinding component. In particular, the control element can remain in the unlocked position, eliminating the need for the user to continuously push the control element to unlock the external magnetic component, making it more convenient to use. The reset element ensures that the control element can be promptly moved from the unlocked position, ensuring both user convenience and the safety and reliability of the grinding component even if the user forgets to operate it.

[0024] 3. An operating groove is directly provided on the side wall of the cup body for the operating component to extend out, and the operating groove is used to directly limit the operation component. On the one hand, the user can intuitively observe the position of the side wall of the cup body, making it easy to push the operating component to the unlock position and to observe whether the operating component has returned to the locked position; on the other hand, the operating groove can directly limit the operating component, ensuring stable and reliable limitation, and then the push of the reset component ensures that the operating component returns to the locked position.

[0025] 4. Adding a limiting block to cooperate with the operating component to form an unlocking and locking mechanism for the crushing device can improve the locking reliability of the operating component, especially ensuring that the operating component reliably locks the external magnetic component in the unlocked position, so as to facilitate the user's operation of the crushing device.

[0026] 5. The food processor is equipped with multiple sets of mutually magnetically attracted magnetic components, each performing different functions. In particular, external and internal magnetic components ensure the safety and reliability of the grinding assembly. Furthermore, the cup body is used to define the magnetic attraction and release positions of the external magnetic component. The user can operate the control element to push the external magnetic component from the release position to the attraction position, unlocking the grinding device and facilitating user removal. Different locking and unlocking positions allow the user to determine if the desired state has been reached. Furthermore, positioning the device in the release position allows the user to operate it without needing to use the control element. To ensure that the external magnetic component reliably locks the grinding device when the user is no longer operating it, preventing the device from remaining unlocked due to user oversight, a reset element is provided. This reset element pushes the external magnetic component from the release position to the attraction position, locking the grinding device.

[0027] 6. A reset rod is directly installed at the bottom of the cup body. When the cup body assembly is placed on the base, due to the weight of the cup body assembly itself, the base can push the reset rod in the opposite direction. The reset rod further drives the external magnetic component, allowing the external magnetic component that has not reset in time to return to the locked position for locking the crushing device. Of course, if the external magnetic component itself has already returned to the locked position for locking the crushing device, the reset rod may no longer push the external magnetic component when pushed in the opposite direction by the base.

[0028] 7. A cooperating guide groove and guide post are provided between the cup assembly and the outer magnetic component. The guide groove limits the radial reciprocating movement of the outer magnetic component along the cup assembly, thereby switching between the locked position and the unlocked position of the crushing device. When the user needs to remove the crushing device, the outer magnetic component is pushed radially by operating the control element to unlock the crushing device. The cup assembly has installation space in both the axial and radial directions, while the diameter of the crushing device is much smaller than the diameter of the cup assembly. This results in a large proportion of installation space between the crushing device and the outer wall of the cup assembly. This space is used to accommodate the locking device and form a movement space for the locking device, without requiring additional installation space structure for the cup assembly, thus not increasing the volume of the cup assembly or affecting the structure and shape of the existing product. Furthermore, this application adds a reset component, so that even if the user forgets to reset the external magnetic component, when the cup assembly is placed on the cup holder, the reset component can promptly push the external magnetic component to the locking position, ensuring that the food processing machine is safer and more reliable.

[0029] 8. A circumferentially extending guide groove is formed between the cup assembly and the outer magnetic component. The outer magnetic component can reciprocate circumferentially along the guide groove at the bottom of the cup assembly to switch between a locked position and an unlocked position of the pulverizing device. Preferably, the bottom of the cup assembly is primarily used for the cooperative transmission of the active disk assembly and the driven disk assembly. Therefore, the outer magnetic component and the inner magnetic component are typically configured as annular rings sleeved around the active disk assembly and the driven disk assembly. Multiple sets of mutually magnetically attracted magnets can be arranged between the outer magnetic component and the inner magnetic component. When the outer magnetic component is pushed by the operating component, the outer magnetic component rotates, causing the magnets between the outer magnetic component and the inner magnetic component to misalign, thereby unlocking the inner magnetic component from the outer magnetic component. The outer magnetic component only rotates within the cup assembly and does not occupy additional moving space, which facilitates the structural installation of the outer magnetic component and ensures its stability and reliability. Similarly, this application can use the reset component to ensure that the external magnetic component can be actively pushed back to the locked position, thereby improving the safety of the food processing machine.

[0030] 9. A mutually cooperating pushing surface and sliding surface are provided between the operating member and the external magnetic member, wherein the pushing surface or sliding surface has an angle with the moving direction of the operating member, so that when the operating member moves, it can use the cooperation of the pushing surface and sliding surface to push the external magnetic member, so that the external magnetic member resets in the desired radial or circumferential direction.

[0031] 10. The crushing device is unlocked by operating the control element to move the outer magnetic component away from the inner magnetic component. When the user no longer needs to operate the crushing device, the outer magnetic component needs to be able to promptly return to the locked position. Therefore, this application provides a reset element to push the outer magnetic component to reset. However, relying solely on the pushing action of the reset element may result in incomplete return, or the return speed may be slow due to the cooperation between the cup assembly and the base. Therefore, an elastic element is further provided to directly push the outer magnetic component to reset; or, the elastic element can be used to push the control element or the reset element. In this way, whether the user actively operates the control element to push the outer magnetic component to reset, or when the reset element is pushed by the base to drive the outer magnetic component to reset, the elastic element can play an auxiliary role in the return. Due to the elastic force of the elastic element, it can reliably drive the outer magnetic component to return to the locked position, and can also push the outer magnetic component to quickly return to the locked position. Attached Figure Description

[0032] Figure 1This is a schematic diagram of the overall structure of a first embodiment of a safe food processing machine as described in this application.

[0033] Figure 2 This is a partial cross-sectional view of the cup assembly of a first embodiment of a safe food processing machine as described in this application.

[0034] Figure 3 This is an exploded view of the locking device structure of a first embodiment of a safe food processing machine as described in this application.

[0035] Figure 4 This is a schematic diagram of the bottom structure of the cup assembly of a first embodiment of a safe food processing machine as described in this application.

[0036] Figure 5 This is a schematic diagram of the locking device in the locked position according to the first embodiment of a safe food processing machine described in this application.

[0037] Figure 6 This is a schematic diagram of the locking device in the unlocked position according to a first embodiment of a safe food processing machine described in this application.

[0038] Figure 7 This is an exploded view of the locking device structure of the first embodiment of a safe food processing machine described in this application.

[0039] Figure 8 This is a cross-sectional view of the locking device structure of a first embodiment of a safe food processing machine as described in this application.

[0040] Figure 9 This is a partial cross-sectional view of the cup assembly of a second embodiment of a safe food processing machine as described in this application.

[0041] Figure 10 This is a partially enlarged schematic diagram of the locking device in the locked position according to a second embodiment of a safe food processing machine described in this application.

[0042] Figure 11 This is a partially enlarged schematic diagram of the locking device in the unlocked position according to a second embodiment of a safe food processing machine described in this application.

[0043] Figure 12 This is a schematic diagram of the locking device in the locked position according to a second embodiment of a safe food processing machine described in this application.

[0044] Figure 13 This is a schematic diagram of the locking device in the unlocked position according to a second embodiment of a safe food processing machine described in this application.

[0045] The labels in the diagram correspond to the following names:

[0046] 100. Base; 101. Motor; 102. Active disk assembly; 103. Housing; 110. Cup assembly; 120. Cup; 121. Body; 122. Cutter disc; 123. Cutter disc recess; 124. Cup outer shell; 125. Unlocking platform; 126. Locking platform; 127. Operating hole; 2. Crushing device; 21. Crushing component; 22. Slave disk assembly; 221. Cutter shaft; 23. Internal magnetic component; 24. Shell 25. Body; 3. Content cavity; 3. Locking device; 31. External magnet; 32. Mounting bracket; 321. Guide block; 322. Guide slope; 323. Clearance groove; 324. Mounting cavity; 325. Guide hole; 326. Spring mounting post; 33. Operating element; 331. Handle; 332. Anti-rotation rib; 333. Connecting boss; 334. Push guide groove; 335. Push plate; 336. Push surface; 34. Top cover; 3 41. Connecting platform; 342. Anti-rotation groove; 343. Connecting hole; 344. Guide groove; 345. Inclined surface; 346. Limiting rib; 347. Upper cover inner cavity; 35. Lower cover; 351. Fixing platform; 352. Lower cover inner cavity; 353. First rib; 354. Second rib; 355. Guide post; 356. First mounting post; 36. Reset component; 37. Limiting block; 371. Unlocking limiting platform; 372. Locking limiting platform Platform; 373. Limiting shaft hole; 38. Fixing component; 4. Cup body bracket; 41. Transmission cavity; 431. Bracket mounting platform; 432. Bracket guide post; 433. Bracket limiting groove; 51. First spring; 52. Second spring; 53. Third spring; 54. Fourth spring; 6. External magnetic component; 61. Mounting bracket; 62. Bracket sliding plate; 63. Bracket guide groove; 64. Bracket support plate; 641. Bracket sliding surface. Detailed Implementation

[0047] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0049] Furthermore, it should be understood that in the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application. As for positional relationships such as "upstream" and "downstream," they are based on the positional relationship when the fluid is flowing normally.

[0050] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly 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 application according to the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an 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 application. 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 can be combined in any suitable manner in one or more embodiments or examples.

[0053] Food processors such as blenders, food processors, and soy milk makers typically rely on a motor to drive a grinding element that collides with and cuts the ingredients placed inside the container, thus pulverizing them. Currently, in blenders, the motor speed often exceeds 10,000 rpm during operation. During the collision and cutting process between the grinding element and the ingredients, discontinuous and random impacts occur, generating vibrations and noise. These vibrations are transmitted back to the motor and the machine base, causing significant vibration and noise in these components as well. As a technology leader in food processors, the applicant is continuously exploring solutions to the problems of motor vibration and noise.

[0054] As mentioned earlier, the applicant proposed using a non-contact transmission method to achieve power transmission between the motor and the crushing component, thereby severing the mechanical connection between the motor and the crushing component and preventing the vibration and impact of the crushing component from acting on the motor. Because of this non-contact power transmission method, the cup body does not need a through hole for power transmission, facilitating the integrated design of the cup body. Furthermore, the crushing device within the cup body is directly designed as a detachable structure. The crushing device can be installed when the user needs to crush, and not installed when the user does not need to crush, facilitating the functional expansion of the food processor and avoiding the need for cleaning the crushing device after use.

[0055] However, the pulverizing device cannot be placed entirely freely within the cup assembly. On one hand, the pulverizing device needs magnetic attraction with the active disk assembly, requiring alignment between them. On the other hand, without restraint, there is a risk that the pulverizing device might be pushed open and move erratically within the cup assembly if misaligned with the active disk assembly. Furthermore, there is a risk that the pulverizing device might fall directly from the cup assembly and injure the user when operating it. Therefore, existing technologies still incorporate locking structures for detachable pulverizing devices to improve their reliability. Existing locking devices typically fall into two categories: purely mechanical latching, which usually utilizes a slot and a locking block. The slot has a locking position for the locking block to prevent the pulverizing device from detaching. However, this structure is cumbersome and usually requires installation or unlocking at specific locations, placing higher demands on the user and posing a risk of improper installation. Another solution employs magnetic attraction, where an additional magnetic component is placed between the crushing device and the cup assembly to reliably attach the crushing device to the cup assembly. This solution has low requirements for locking and unlocking positions, allowing users to install or remove the crushing device at any location. Furthermore, even if the user does not install it completely, the magnetic attraction can reliably hold the crushing device in place, thus improving the safety of the food processor.

[0056] However, the aforementioned magnetic installation scheme still has drawbacks. Because a secure fixation between the crushing device and the cup assembly is required, and the cup assembly must be able to hold the crushing device in place, the magnetic force between them must be strong enough. However, when the user needs to remove the crushing device, such a strong magnetic force greatly hinders the user's operation; the stronger the magnetic force, the more difficult it is for the user to remove the crushing device. But reducing the magnetic force may cause the safety locking function to fail. This creates a contradiction between the crushing device and the cup assembly, requiring both a large and small interaction force. Existing solutions can only achieve the function of the food processor by sacrificing one of these forces or simultaneously reducing the properties of both.

[0057] The key to solving the problem of magnetic locking structures lies in achieving a balance between ensuring sufficient magnetic force between the crushing device and the cup assembly for absolute safety, while minimizing the interaction force to avoid interfering with normal user operation. Through continuous research and testing, the applicant discovered the inherent contradiction of needing both a large and small magnetic force between the crushing device and the cup assembly. By disassembling the structure spatially and temporally, it was found that the locked state requiring a large magnetic force and the unlocked state requiring a small magnetic force operate in different ways. Therefore, by disassembling the locking structure between the crushing device and the cup assembly, this contradiction is avoided, achieving the desired balance of a large and small magnetic force. This ensures reliable locking of the cup assembly to the crushing device while allowing the user to easily remove it.

[0058] Based on the above analysis, the applicant, building upon the non-contact transmission solution, modifies the existing direct magnetic locking installation structure between the crushing device and the cup assembly. The locking device is configured with different locking positions in different operating states. Furthermore, the locking device is equipped with a reset component, which pushes the locking device back to the locking position of the crushing component, avoiding the risk of the crushing component failing to lock effectively due to user forgetfulness. To solve the above technical problems and achieve the technical effect of reliable locking, convenient operation, and safety, this application provides a safe food processor. The food processor includes a base and a detachable cup assembly mounted on the base. The base contains a motor and an active disk assembly driven by the motor. The cup assembly is for holding processed ingredients, and a crushing device for crushing the ingredients is placed inside the cup. The crushing device is detachably installed inside the bottom of the cup assembly. The pulverizing device includes a pulverizing element and a driven disk assembly. The driven disk assembly and the driven disk assembly are magnetically attracted to each other, enabling power transmission. This allows power to be transmitted between the motor and the pulverizing element without direct mechanical contact. Since there is no need for a power transmission through-hole, the bottom of the cup assembly can be designed as a completely sealed structure. The pulverizing device is detachably mounted on the inner side of the bottom of the cup body. On the one hand, the food to be processed is usually located at the bottom of the cup body; on the other hand, the pulverizing device located at the bottom can fit more closely to the driven disk assembly of the base, thus increasing the magnetic attraction between the driven and driven disk assemblies. Furthermore, the pulverizing device is equipped with an internal magnetic component, and the cup assembly is equipped with a locking device located on the outside of the cup body. The locking device is equipped with an external magnetic component, which is arranged opposite to the internal magnetic component and magnetically attracted to each other, so that the external magnetic component magnetically locks the pulverizing device to the bottom of the cup. Although both the active and passive disk assemblies are equipped with permanent magnets, and there is sufficient magnetic attraction between them, their primary function is power transmission. Therefore, it is not suitable to directly use the active and passive disk assemblies to magnetically lock the shredder. Furthermore, when the cup assembly and the base are separated, the active and passive disk assemblies also separate, making magnetic locking of the shredder impossible. Therefore, a separate internal magnetic element is incorporated within the shredder. The mutual magnetic attraction between this internal and external magnetic element ensures that the locking device can reliably magnetically lock the shredder to the bottom of the cup assembly.The locking device is further provided with an operating member, which is located at the bottom of the cup assembly and extends out of the outer wall of the cup assembly. One end of the operating member is connected to the outer magnetic component, and the other end is exposed and can be operated by the user. Thus, the user can drive the outer magnetic component away from the inner magnetic component by operating the operating member, thereby rapidly weakening the magnetic attraction between the outer and inner magnetic components and achieving the purpose of unlocking the crushing device.

[0059] The control element can be configured with multiple operating modes. One mode requires the user to continuously push the control element to keep the external magnetic component in the unlocked position of the crushing device. However, this requires continuous pushing, and the user usually needs to remove the crushing device simultaneously, making it inconvenient. Another mode has a locking and unlocking position on the control element. When the user operates the control element from the locked position to the unlocking position, the external magnetic component unlocks its magnetic lock on the crushing device, and both the control element and the external magnetic component remain in the unlocked position. When the user removes the crushing device, operating the control element again returns the external magnetic component to the locked position, maintaining the locked state on the crushing device. However, if the user forgets to push the control element to the locked position, the external magnetic component will not be able to return to the locked position in time, thus the crushing device may fall off due to the inability to be locked. Based on the aforementioned detailed technical issues, this application, in addition to the aforementioned operating mechanism, further includes a reset mechanism. When the cup assembly is placed on the base, the base pushes the reset mechanism in the opposite direction under the weight of the cup assembly itself. The reset mechanism then moves the external magnetic component from the unlocked position back to the locked position. This action does not require direct user operation; it can be completed simply by the user placing the cup normally. This avoids the risk of forgetting due to direct user involvement, making the food processor safer, more stable, and reliable. The reset mechanism relies solely on the weight of the cup assembly itself to reset the external magnetic component, without requiring additional structures, thus achieving a simple and efficient structure.

[0060] The locking device reliably magnetically locks the pulverizing device into the cup body. During use, the pulverizing device remains stably and securely fixed within the cup assembly, eliminating concerns about it flying out or falling off, thus improving safety. When the user needs to remove the pulverizing device, they simply operate the control mechanism to push the outer magnetic component away from the inner magnetic component, unlocking the locking device. The user can then easily remove the pulverizing device from the cup body, avoiding the interference of the magnetic force between the outer and inner magnetic components, making operation quicker and more convenient. This achieves a sufficiently strong magnetic force between the pulverizing device and the cup assembly to meet the requirements for secure locking; while simultaneously releasing or weakening the magnetic force between the pulverizing device and the cup assembly when the user needs to remove it, allowing for easy operation. Furthermore, by setting a reset component, it is ensured that even if the user forgets to reset the external magnetic component, the weight of the cup assembly itself can push the locking device back to the position where the crushing device is locked after normal use. This ensures that the crushing device can be locked in the working position in a timely manner, avoiding the risk of not locking in time due to the user's forgetfulness.

[0061] Of course, it should be noted that although the operating component can move the outer magnetic component away from the inner magnetic component, there is still a magnetic attraction between them. When operating the pulverizing device, the user mainly overcomes the following forces: the weight of the pulverizing device itself, the magnetic attraction between the outer and inner magnetic components, and the frictional force exerted on the pulverizing device by the cup assembly. The weight of the pulverizing device and the frictional force it experiences are relatively stable within a fixed product, and the frictional force experienced by the pulverizing device is relatively small compared to its own weight, and can be ignored by the user. When the outer and inner magnetic components are in the locked position, the force between them is usually greater than the weight of the crushing device itself. This ensures the crushing device remains stable and reliable when subjected to the magnetic attraction of the outer magnetic component. When the outer magnetic component is in the unlocked position, the magnetic attraction between the outer and inner magnetic components weakens rapidly due to the change in distance. At this point, the magnetic attraction is negligible relative to the weight of the crushing device. Therefore, the user will not perceive the magnetic attraction during use, but will only perceive the weight of the crushing device itself, which is known to the user. Ultimately, the user can easily pick up the crushing device given the known force.

[0062] Specifically, such as Figures 1-13As shown, this application provides a safe food processing machine, which includes a base 100 and a cup assembly 110. The base 100 is equipped with a motor 101 and an active disk assembly 102 driven by the motor 101, and the active disk assembly 102 is disposed on the upper part of the base 100. The cup assembly 110 is detachably mounted on the upper part of the base 100, and includes a cup body 120, a crushing device 2, and a locking device 3. Since the bottom of the cup body 120 does not need to be provided with a through hole, it can be designed in various ways. For example, the cup body 120 can be made of one piece of stainless steel, or the cup body 120 can be made of one piece of glass or ceramic material. Preferably, the cup body 120 includes a body 121 and a blade 122. The body 121 is made of cylindrical glass and includes an opening that connects the top and bottom. The blade 122 is disposed at the bottom opening of the body 121 and is made of stainless steel to close the bottom opening of the body 121. Meanwhile, a heating tube is provided on the outer side of the blade disc 122 to heat the cup assembly. The pulverizing device 2 includes a pulverizing element 21, a driven disk assembly 22, and an inner magnetic element 23. The driven disk assembly 22 is connected to the pulverizing element 21. The cup assembly 110 is mounted on the base 100. When the food processor is working, the driven disk assembly 102 is placed under the drive of the motor 101, synchronously driving the driven disk assembly 22 to be placed to drive the pulverizing element 21 to work, cutting and pulverizing the food inside the cup assembly 110. The locking device 3 and the inner magnetic element 23 are magnetically attracted to each other. Thus, the locking device 3, located on the outer side of the cup, magnetically locks the pulverizing device 2 located inside the cup 120 through the inner magnetic element 23. Preferably, the locking device 3 includes an outer magnetic element, an operating element 33, and a reset element 36. The outer magnetic element and the inner magnetic element 23 are magnetically attracted to each other to lock and unlock the pulverizing device 2. Since the primary purpose of the external and internal magnetic components is to lock the crushing device, the magnetic attraction between them only needs to overcome the maximum external force acting on the crushing device. Therefore, both the external and internal magnetic components can be permanent magnets to provide a stronger magnetic attraction. Alternatively, only one of the external and internal magnetic components can be a permanent magnet, while the other can be a magnetic component that attracts the permanent magnet; both do not necessarily need to be permanent magnets. Furthermore, the external and internal magnetic components, even when equipped with permanent magnets, can be configured with a single permanent magnet or multiple permanent magnets, depending on the required magnetic attraction. The operating member 33 is located at the bottom of the cup assembly and extends beyond the outer wall of the cup assembly.Since the outer and inner magnetic components are located together at the bottom of the cup assembly, the operating mechanism is positioned at the bottom and can be directly connected to the outer magnetic component. This allows the user to directly operate the operating mechanism to push the outer magnetic component, making the process more convenient and direct. The reset component 36 is also located at the bottom of the cup assembly. When the cup assembly is mounted on the base, the reset component 36 abuts against the base. The base can push the reset component, causing the outer magnetic component to move closer to the inner magnetic component to lock the pulverizing device.

[0063] By utilizing the locking device and the internal magnetic component, the pulverizing device can be securely locked to the inner bottom of the cup assembly under normal conditions, enabling normal pulverizing. When the user needs to remove the pulverizing device, they only need to operate the control element to push the external magnetic component away from the internal magnetic component, thereby unlocking the pulverizing device and allowing for easy removal. The locking device and internal magnetic component are designed to perform different functions at different operating times, meeting various user needs. This ensures that the locking device provides sufficient magnetic force to guarantee the stability and reliability of the pulverizing device, while also reducing the magnetic force for easy removal. Users can easily and efficiently switch the locking device between different operating states simply by operating the control element, resolving existing technical contradictions. Furthermore, the user can operate the control element to unlock the external magnetic component, allowing for easy removal; the user can also further operate the control element to return from the unlocked position to the locked position, thus locking the pulverizing device. However, if the user forgets to reset the locking device, the crushing device placed inside the cup body will not be reliably locked. By setting the reset element, especially since the reset element relies solely on the weight of the cup body assembly and the cooperation of the base, the locking device can be reset with minimal user intervention, ensuring greater product safety and resolving potential safety risks. Ultimately, this provides users with a food processor that is stable and reliable during operation, easy to use, and free from safety hazards after use.

[0064] As a specific embodiment of the safe food processing machine described in this application, such as Figures 1-8As shown, the food processing machine includes a base 100 and a cup assembly 110. The base 100 has a housing 103 and a motor 101 located within the housing 103. The motor shaft of the motor 101 extends out of the housing 103, and an active disk assembly 102 is provided at the top of the motor shaft. The cup assembly 110 is detachably mounted above the base 100. Preferably, a mounting platform is provided on the upper side of the base 100, and the cup assembly 110 is mounted above the base 100 by means of the mounting platform. The cup assembly 110 includes a cup body 120, a blade 130, a crushing device 2, and a locking device 3. The cup body 120 includes a main body 121 and a blade 122. The main body 121 is a cylindrical structure made of glass and has upper and lower openings. The blade 122 is preferably made of stainless steel and is located at the lower opening of the main body 121 to close the lower opening of the main body 121. The main body 121 and the blade 122 constitute the cup body 120, and the interior of the cup body 120 forms a processing chamber for accommodating and processing food ingredients.

[0065] The pulverizing device 2 is detachably disposed at the bottom of the inner side of the cup body 120. Preferably, the bottom of the blade 122 is provided with a downwardly extending blade recess 123, and the pulverizing device 2 is disposed within the blade recess 123. The blade recess 123 can better limit the pulverizing device 2 to prevent it from disengaging from the transmission position during operation. The pulverizing device 2 includes a pulverizing component 21, a driven disk assembly 22, and an inner magnetic component 23. Preferably, the pulverizing device 2 is provided with a housing 24 that encloses the driven disk assembly 22 and the inner magnetic component 23. The housing 24 has a cavity formed inside to accommodate the driven disk assembly 22 and the inner magnetic component 23. External processed food and liquid cannot directly contact the driven disk assembly 22 and the inner magnetic component 23, thus avoiding corrosion and rust when the driven disk assembly 22 and the inner magnetic component are in direct contact with liquid. The active disk assembly 22 is connected to the shredder 21 via a blade shaft 221, which passes through the housing 24 to connect the passive disk assembly 22 and the shredder 21. Preferably, the passive disk assembly 22 is provided with a permanent magnet to magnetically engage with the active disk assembly 102. The housing 24 also has a content cavity 25 inside, and the internal magnetic element 23 is disposed in the content cavity 25. Preferably, the internal magnetic element 23 is annular and surrounds the outer periphery of the driven disk assembly 22. Along its axial length, both the internal magnetic element 23 and the driven disk assembly are close to the bottom wall of the housing 24. Since the driven disk assembly 22 needs to rotate, a certain gap is provided between the driven disk assembly 22 and the bottom wall of the housing 24. The internal magnetic element 23 does not need to rotate, and it is directly attached to the bottom wall of the housing 24. This reduces the distance between the internal magnetic element and the external magnetic element, and between the driven disk assembly and the active disk assembly, thus providing magnetic attraction between each pair of mating components.

[0066] Preferred, such as Figure 1 , Figure 2 and Figure 4As shown, the cup assembly 110 also has a cup shell 123 and a cup support 4 on the outside of the cup body 120. An installation space for installing the locking device 3 is formed between the cup shell 123, the cup body 120, and the cup support 4. The locking device 3 includes an operating member 33, an external magnetic member, and a resetting member 36. The external magnetic member includes an external magnet 31 and a mounting bracket 32. Preferably, the mounting bracket 32 ​​has a mounting cavity 324 for installing the external magnet 31. The cup assembly 110 has an interlocking upper cover 34 and a lower cover 35 within the installation space. Both the upper cover 34 and the lower cover 35 are annular, and the crushing device 2 is coaxially arranged. The upper cover 34 has an upper cover inner cavity 347, and the lower cover 35 has a lower cover inner cavity 352. The upper cover inner cavity 347 and the lower cover inner cavity 352 form a receiving space to accommodate the external magnetic component. The external magnetic component is concentrically annular with the upper cover 34 and the lower cover 35 to be accommodated within the receiving space. The bottom of the cup body support 4 also has a transmission cavity 41, and the upper cover 34, the lower cover 35, and the external magnetic component surround the outer periphery of the transmission cavity 41. When the cup body assembly 110 is installed on the base 100, the active disk assembly 102 is inserted into the transmission cavity 41 to be close to the bottom wall of the blade disc 122, so that the active disk assembly 102 can be close to the driven disk assembly 22 to achieve better power transmission. The upper cover 34, lower cover 35, and the external magnetic component are fitted around the outer periphery of the transmission cavity 41. When the active disk assembly 102 is inserted into the mounting cavity 41, the external magnetic component surrounds the outer periphery of the active disk assembly 102. Preferably, multiple external magnets 31 are provided on the mounting bracket 32, and the multiple external magnets 31 are evenly distributed around the circumference of the mounting bracket 32. For example, there may be 2, 3, 4, 5, or 6 external magnets 31, and the size of the external magnets 31 can be adjusted according to the available space. Preferably, the magnetic poles of the external magnets 31 and the internal magnetic component 23 are arranged opposite each other along the axial direction of the cup assembly 110, and the magnetic poles of the multiple external magnets 31 are the same at one end of the axial direction. This arrangement allows the active disk assembly and the driven disk assembly, as well as the external magnetic component and the internal magnetic component, to achieve better alignment and close proximity, ensuring that both sets of magnets have maximum magnetic attraction when installed in place. The magnetic poles of the outer and inner magnetic components are arranged axially. When the inner and outer magnetic components overlap axially, they can have the maximum magnetic attraction force to ensure that the crushing device is locked securely. When the outer and inner magnetic components are misaligned or the distance between them is increased, the magnetic attraction force between the inner and outer magnetic components can be quickly weakened to facilitate the removal of the crushing device.Furthermore, the axial arrangement of the magnetic poles can reduce the impact on the active and passive disk assemblies; similarly, the axial arrangement of the magnetic poles of the active and passive disk assemblies can also reduce the impact on the external and internal magnetic components.

[0067] like Figures 2-8 As shown, the lower cover 35 is fixedly mounted on the cup body support 4 via a fixing platform 351. The cup body support 4 is provided with a bracket mounting platform 431 for fixing the fixing platform 351. The bracket mounting platform 431 is provided with a bracket guide post 4432. Preferably, the fixing platform 351 and the bracket guide post 432 are fixedly connected by screws. The lower cover 35 is also provided with a first baffle 353, a second baffle 354, and a guide post 355. A first spring 51 is provided at the first baffle 353, and a first mounting post 356 is provided on the side wall of the second baffle 353, which is inserted into the first spring 51 to limit the first spring 51. A second spring 52 is provided at the second baffle 354. The mounting bracket 32 ​​is provided with a guide hole 325 and a spring mounting post 326. When the mounting bracket 32 ​​is installed in the receiving space formed by the upper cover 34 and the lower cover 35, the guide post 355 is inserted into the guide hole 323, and at the same time, the spring mounting post 326 is inserted into the second spring 52, so that the second spring 52 is clamped between the lower cover 35 and the mounting bracket 32.

[0068] The mounting bracket 32 ​​is further provided with a guide block 321, the guide block 321 having a guide slope 322, and the outer side wall of the mounting bracket 32 ​​having a clearance groove 323. The upper cover 34 has a guide groove 344 that cooperates with the guide block 321, and the guide groove 344 has an inclined surface 345 that cooperates with the guide slope 322. The guide block 321 is located in the guide groove 344. When the upper cover 34 is pushed, the guide slope 322 and the inclined surface 345 cooperate to convert the placement movement of the upper cover 34 into the vertical movement of the mounting bracket 32 ​​along the axial direction, so as to drive the outer magnet 31 to move closer to or away from the inner magnetic component 23, thereby realizing the locking or unlocking of the outer magnetic component 31 to the inner magnetic component 23. A limiting rib 346 is also provided below the upper cover 34. When the upper cover 34 and the lower cover 35 are fastened together, the other end of the first spring 51 abuts against the limiting rib 346.

[0069] The upper cover 34 is also provided with a connecting platform 341, which has an anti-rotation groove 342 and a connecting hole 343. The operating member 33 has an anti-rotation rib 332 that cooperates with the anti-rotation groove 342 and a connecting boss 333 that cooperates with the connecting hole 343. The reset member 36 abuts against the bottom of the connecting boss 333 and can push the connecting boss 333 to move axially, thereby causing the anti-rotation rib 332 to slide up and down in the anti-rotation groove 342. Thus, when the reset member 36 is pushed in the opposite direction by the base 100, it can drive the operating member 33 to move axially and cause the upper cover 34 to rotate in the opposite direction, thereby driving the mounting bracket 32 ​​and the outer magnetic member 31 to move axially to the magnetic locking position of the inner magnetic member 23. The operating member 33 is also provided with a handle 331 on the outside of the cup assembly 110. The cup body support 4 is also provided with a support limiting groove 433. The side wall of the cup body shell 124 is provided with a stepped unlocking platform 125 and a locking platform 126. The unlocking platform 125 and the locking platform 126 have a height difference in the axial direction of the cup body shell 124. The operating member 33 passes through the support limiting groove 433 and the unlocking platform 125 and the locking platform 126. The user operates the handle 331 to drive the operating member 33 to switch between the unlocking platform 125 and the locking platform 126, so as to further drive the external magnetic member to switch between the locked position and the unlocked position. Because of the unlocking platform 125 and the locking platform 126, when the user needs to take the crushing device 2, he pushes the operating member 33 from the locking platform 126 to the unlocking platform 125. At this time, the user can release the operating member 33 to easily take the crushing device 2 in the cup body assembly 110 without having to operate the operating member 33 throughout the entire taking process. After the user has finished taking it, they can manually push the control element 33 from the unlocking platform 125 back to the locking platform 126, so that when the user places the crushing device 2 into the cup assembly 110, the crushing device 2 will be locked. If the user forgets to return the control element 33 from the unlocking platform 125 to the locking platform 126, when the cup assembly 110 is placed on the base 100, the base 100 pushes the reset element 36, and the reset element 36 further pushes the control element 33, so that the control element 33 returns from the unlocking platform 126 to the locking platform 126, ensuring that the locking device 3 can reliably lock the crushing device 2 and avoiding the risk of use due to the user's forgetfulness.

[0070] When the cup assembly 110 is placed on the base 100, the reset member 36 directly abuts against the upper housing of the base 100, using the upper housing to push the reset member 36 to return the locking device 3 to the locked position. The lower end of the reset member 36 is not lower than the lower end of the cup assembly 110. That is, when the cup assembly 110 is normally placed on a horizontal workbench or table, the outer shell 124 of the cup body contacts the workbench or table, without the reset member 36 directly contacting the workbench or table. This avoids the user being unable to properly pick up the crushing device 2 because the reset member 36 has pushed the locking device 3 to the locked position.

[0071] like Figure 5 As shown, when the operating member 33 is held in the locking position on the locking platform 126, the inclined surface 345 of the guide groove 344 does not press against the guide block 321. The second spring 52 pushes the mounting bracket 32 ​​and drives the outer magnet 31 to approach the top of the upper cover 34, so as to approach the blade disc 122 and the inner magnetic member 23 located in the blade disc 122. At this time, the distance between the outer magnet 31 and the inner magnetic member 23 is close, and the outer magnet 31 and the inner magnetic member 23 have a sufficiently strong magnetic attraction to reliably magnetically lock the crushing device 2 to the inner bottom of the cup assembly 110. Figure 6As shown, when the user operates the control element 33 and pushes it from the locking platform 126 to the unlocking platform 125, the user operates the handle 331 to drive the control element 33 and ultimately push the top cover 34 to rotate at the bottom of the cup assembly 110. The inclined surface 345 of the top cover 34 applies a force F to the guide inclined surface 322. This force F is decomposed into a downward force F1 on the guide block 321. Under the pressure of this force F1, the guide block 321 drives the mounting bracket 32 ​​and the outer magnet 31 to move downward. At this time, the distance between the outer magnet 31 and the inner magnetic component 234 is increased. Because of the increased distance, the magnetic attraction between the outer magnet 31 and the inner magnetic component 234 decreases rapidly, usually to a state that is relatively small compared to the weight of the crushing device 2 itself. The user does not perceive the magnetic attraction force significantly, making it convenient for the user to pick up the crushing device 2. During the rotation of the upper cover 34, the baffle 346 rotates within the space of the clearance groove 323 and compresses the first spring 51. The mounting bracket 32 ​​compresses the second spring 52 through the spring mounting groove 326, and under the guidance of the guide post 355 and the guide hole 325, the mounting bracket 32 ​​moves axially. When the user pushes the operating member 33 from the unlocking platform 125 to the locking platform 126, or when the cup assembly 110 is placed on the base 100 and pushes the reset member 36, it is subjected to the reaction force of the first spring 51 and the second spring 52. The first spring 51 and the second spring 52 push the mounting bracket 32 ​​and the upper cover back to the original position. Figure 5 The lock position is shown.

[0072] In particular, such as Figure 7 , Figure 8 As shown, when the user forgets to push the operating element 33 from the unlocking platform 125 to the locking platform 126, the locking device 3 will not be able to effectively lock the crushing device 2. However, when the user places the cup assembly 110 on the base 100, the reset element 36 first contacts the base 100. Due to the weight of the cup assembly 110 itself, the base 100 will exert a reaction force on the reset element 36, pushing the reset element 36 to move axially, thereby pushing the operating element 33, causing the operating element 33 to return from the unlocked position to the locked position, and driving the locking device 3 to return to the locked position for the crushing device 2. Here, due to the action of the first spring 51 and the second spring 52, only after the reset element 36 is pushed and pushes the operating element 33 from the unlocking platform 125 to the locking platform 126, the first spring 51 and the second spring 52 can drive the locking device 3 to quickly return to the locked position.

[0073] The locking device utilizes an external magnetic component to magnetically lock the pulverizing device when needed, ensuring its stable and reliable adsorption at the bottom of the cup assembly for efficient pulverization. When the user needs to remove the pulverizing device, they simply operate the control mechanism to move the external magnetic component away from the internal magnetic component, releasing the magnetic attraction between them and making it easier to retrieve the device. Firstly, operating the control mechanism typically only requires overcoming the magnetic attraction between the external and internal magnetic components, without adding the weight of the pulverizing device itself, making operation significantly easier than directly removing it. Secondly, the lever effect between the control mechanism and the external magnetic component reduces the magnetic attraction between them, allowing the user to disengage the pulverizing device with less force. By setting up the locking and unlocking platforms, the user only needs to push the control element from the locking platform to the unlocking platform to keep the locking device in the unlocked state of the crushing device, without having to continuously operate the control element. This reduces the user's operation and makes it easier for the user to pick up the crushing device. It also avoids the situation where the user needs to operate the control element with one hand and pick up the crushing device with the other hand, which would make it impossible to reliably support and stabilize the cup assembly.

[0074] After use, the user can manually push the control mechanism from the unlocking platform back to the locking platform, thereby returning the locking device to the locked position. Even if the user forgets to push the control mechanism from the unlocking platform to the locking platform, when the user uses the food processor again and places the cup assembly on the base, or when the user stores the food processor and places the cup assembly on the base, the reset mechanism, with the cooperation of the cup assembly and the base, will push the locking device from the unlocked state back to the locked state. This ensures that the locking device remains locked to the pulverizing device, preventing the pulverizing device from failing to effectively magnetically lock due to user forgetfulness. In particular, since the pushing of the reset mechanism relies on the weight of the cup assembly itself and the pushing action of the elastic element, the force perceived by the user during the reset process is very small, reducing user involvement and improving user satisfaction.

[0075] The solution in this application places the operation of the crushing device in different stages. Therefore, it can rely on the locking device to apply different forces to the crushing device at different stages, achieving both sufficient locking force and reduced force on the crushing device. By utilizing the different states of the locking device at different stages, the force distribution between the locking device and the crushing device is decomposed, resolving the contradiction between needing both large and small forces, providing users with a convenient and safe food processor. Setting different positions for the operating component allows the locking device to remain in the desired position, avoiding the need for continuous operation to maintain stability, making it more convenient to use. Furthermore, a reset component is included to actively push the locking device back, avoiding safety risks due to user forgetfulness.

[0076] Understandably, the operating component can also be directly connected to the mounting bracket without the upper and lower covers. The operating component drives the mounting bracket and the outer magnet to rotate circumferentially, causing the outer magnet and the inner magnetic component to misalign and increase the magnetic attraction distance. Correspondingly, the reset component can directly abut against the operating component to push the operating component to reset the outer magnetic component; or, the reset component can directly push the mounting bracket to rotate circumferentially to reset it. For example, the reset component and the mounting bracket are provided with mutually cooperating inclined surfaces. When the reset component is subjected to axial compression, the mutually cooperating inclined surfaces drive the mounting bracket to rotate and reset.

[0077] Understandably, the external magnetic component may consist of only a magnetic element, such as a permanent magnet, which is directly disposed within the receiving space formed by the upper and lower covers. The upper cover then drives the external magnetic component to move axially. Alternatively, the locking device may consist of only an external magnetic component, an operating component, and a reset component. The external magnetic component may consist of only an external magnet, the operating component may directly move the external magnet closer to or away from the internal magnetic component, and the reset component may directly push the external magnet closer to the internal magnetic component to restore the magnetic locking of the internal magnetic component.

[0078] Understandably, both the outer magnet and the inner magnetic component are provided with multiple opposing magnets, whose magnetic poles are arranged axially, and opposing magnetic poles attract each other. Specifically, the magnetic poles of the multiple outer magnets of the outer magnetic component are staggered; that is, in the axial direction, when the upper magnetic pole of one outer magnet is the N pole, the upper magnetic pole of the adjacent outer magnet is the S pole, and so on. With this arrangement, when the outer and inner magnetic components are in the locked position, adjacent magnetic poles attract each other to lock the crushing device at the bottom of the cup. When the outer magnetic component is moved and rotated by the operating element, the misaligned outer and inner magnetic components repel each other magnetically, allowing the outer magnetic component to push the inner magnetic component and thus push the crushing device upwards or with a tendency to move, making it easier to remove the crushing device. Alternatively, since the pulverizing device is detachably installed within the cup assembly, the misaligned magnetic poles between the outer and inner magnetic components can be used to limit the pulverizing device, ensuring it is in a preset pulverizing position, thereby ensuring alignment between the active and passive disk assemblies; the outer magnetic component can move downwards to increase the distance from the inner magnetic component, thus unlocking the pulverizing device.

[0079] Understandably, based on the shape variations of the active and passive disk assemblies, the inner magnetic element and the passive disk assembly can be positioned at different locations. For example, the active and passive disk assemblies may be nested together at the bottom of the cup assembly, or the active disk assembly may be nested around the outer periphery of the passive disk. In this case, the inner and outer magnetic elements are correspondingly nested together, and the inner and outer magnetic elements may be located above the active and passive disk assemblies; or, the inner and outer magnetic elements may be located below the active and passive disk assemblies. The outer magnetic element may move radially away from or towards the inner magnetic element; or, the outer magnetic element may move axially away from or towards the inner magnetic element.

[0080] Understandably, since magnets, particularly permanent magnets, are directly disposed between the internal and external magnetic components, and between the active and passive disk assemblies, they all possess magnetic attraction. Therefore, when the external magnetic component resets, the magnetic attraction of the internal magnetic component can be superimposed, eliminating the need for a spring to push the external magnetic component back to its reset position. Thus, when the user operates the control element to push the external magnetic component, the external magnetic component actively returns to its magnetically locked position under the magnetic attraction of the internal magnetic component; or, when the reset element pushes the external magnetic component, the external magnetic component further actively returns to its magnetically locked position under the magnetic attraction of the internal magnetic component.

[0081] As another preferred embodiment of the safe food processing machine described in this application, such as Figures 9-13 As shown, the locking device includes an operating member, an external magnetic member, and a reset member. The external magnetic member reciprocates along the axial direction of the cup assembly to move closer to or further away from the internal magnetic member. The reset member pushes the limiting block to switch between an unlocked position and a locked position.

[0082] like Figures 9-13 As shown, the operating member 33 is disposed at the bottom of the cup body assembly 110. The bottom of the cup body support 4 is also provided with a guide mounting platform 434. A limiting block 37, a fixing member 38, and a fourth spring 54 are installed at the guide mounting platform 434. The limiting block 37 includes an unlocking limiting platform 371, a locking limiting platform 372, and a limiting shaft hole 373. The fixing member 38 passes through the limiting shaft hole 373 and is fixedly connected to the cup body support 4. The fourth spring 54 pushes the limiting block 37, allowing the limiting block 37 to move axially. The operating member 33 is provided with a pushing guide groove 334, into which the limiting block 37 is inserted. The unlocking limiting platform 371 and the locking limiting platform 372 form a stepped column with different outer diameters and respectively cooperate with the pushing guide groove 337. The bottom of the cup assembly 110 is also provided with a reset member 36 that pushes the limiting block 37. The bottom of the reset member 36 extends into the cup support 4, and the top of the reset member 36 abuts against the limiting block 37.

[0083] like Figures 9-11As shown, when the locking limiting platform 372 engages with the pushing guide groove 334, the operating member 33 abuts against the locking limiting platform 372. At this time, the external magnetic member is in the locked position of locking the crushing device 2. When the user pushes the operating member 33 inward and reaches the position that matches the unlocking limiting platform 371, the limiting block 37 moves downward under the pushing action of the fourth spring 54, so that the unlocking limiting platform 371 matches the pushing guide groove 334. At this time, the unlocking limiting platform 371 prevents the operating member 33 from moving and drives the external magnetic member to remain in the unlocked position of unlocking the crushing device, so that the user can operate the crushing device 2. The user can actively push the reset member 36, or push the operating member 33 laterally to reset the limiting block 37 axially to the locked position, so that the unlocking limiting platform 371 disengages from the pushing guide groove 334. The pushing guide groove 334 then engages with the locking limiting platform 372, causing the external magnetic component to return from the unlocked position to the locked position. If the user forgets to reset the operating member 33, when the cup assembly is placed on the base 100, the base 100 pushes the reset member 6, which then abuts against and pushes the limiting block 37, causing the limiting block 37 to move axially upwards. This ultimately returns the operating member 33 to the locked position and the external magnetic component to the locked position for locking the pulverizing device, preventing the pulverizing device from failing to lock effectively due to user forgetfulness.

[0084] The bottom of the cup assembly 110 is also provided with a third spring 53, which abuts against the cup support 4 and the operating member 33. The third spring 53 pushes the operating member 33, causing the operating member to tend to return to the locked position. When the limiting block 37 returns from the unlocked position to the locked position, the third spring 53 pushes the operating member 33, causing the operating member 33 to match the locking limiting platform 372, ultimately causing the external magnetic component to promptly return to the locked position for locking the crushing device.

[0085] like Figure 12 , Figure 13As shown, two external magnetic components 6 are provided, and the two external magnetic components 6 are symmetrically arranged at the bottom of the cup assembly 110. The bottom 110 of the cup assembly also has a transmission cavity 41 for the active disk assembly to extend into. The two external magnetic components 6 are clamped on both sides of the transmission cavity 41. The external magnetic component 6 includes an external magnet and a mounting bracket 61. Preferably, the external magnet is embedded in the mounting bracket 61, and the mounting bracket 61 is used to protect the external magnet. The mounting bracket 61 includes a bracket sliding plate 62 and a bracket support plate 64. The bracket support plate 64 is fan-shaped. The external magnet is embedded in the bracket support plate 64 and is arranged opposite to the internal magnetic component 23. The bracket sliding plate 62 is located on the radially outer side of the bracket support plate 64. Preferably, the bracket support plate 64 is symmetrically arranged, and the bracket sliding plate 62 is located at the symmetrical center plane of the bracket support plate 64, so that the two sides of the mounting bracket 61 are symmetrical. The bracket sliding plate 62 is provided with a bracket guide groove 63. The bottom of the cup holder 4 is provided with a bracket guide post 432 to limit the positioning of the mounting bracket 61. The bracket guide post 432 is inserted into the bracket guide groove 63, and the mounting bracket 61 is axially limited and installed on the cup holder 4 by screws or other fasteners, so that the mounting bracket 61 can reciprocate along the extension direction of the bracket guide groove 63. Preferably, a spring is also provided between the cup holder 4 and the mounting bracket 61 to push the mounting bracket 61 to return to its original position.

[0086] The side wall of the bracket support plate 64 is provided with a bracket sliding surface 641. The end of the operating member 33 near the mounting bracket 61 is provided with a push plate 335. One side of the push plate 335 is provided with a push surface 336, and the push surface 336 abuts against the bracket sliding surface 641.

[0087] like Figure 12 As shown, when the operating member 33 is not pushed by an external force, the pushing guide groove 334 cooperates with the locking limit platform 371. At the same time, the operating member 33 and the mounting bracket 61 are respectively subjected to the force of the spring, so that the mounting bracket 61 drives the external magnet to the locking position of locking the crushing device 2 and locks the crushing device 2.

[0088] like Figure 13As shown, when the operating member 33 is subjected to external pressure, the push guide groove 334 and the limiting block 37 restrict the operating member, and the operating member 33 moves along the extension direction of the push guide groove 334. At this time, the push surface 336 of the push plate 335 abuts against the sliding surface 641 of the bracket, and converts the radially central pushing force of the operating member 33 into the radially outward pushing force of the mounting bracket 61. Under the limiting action of the bracket guide groove 63 and the bracket guide post 432, the mounting bracket 6 moves radially outward, so that the outer magnetic component and the inner magnetic component are misaligned and the magnetic distance between them is increased, and the crushing device is unlocked, making it convenient for the user to take the crushing device. When the operating element 33 moves to the unlocked position, the limiting block 37 moves downward under the pushing action of the fourth spring 54, causing the unlocking limiting platform 371 to match the pushing guide groove 334. This allows the operating element 33 to remain in the unlocked position and also to push and limit the external magnetic element 6 to the unlocked position, thus unlocking the crushing device. In this way, the user does not need to continuously press the operating element to keep both the operating element and the external magnetic element in the unlocked position, making it convenient for the user to retrieve the crushing device.

[0089] The control element and external magnetic component are directly installed, with the control element protruding from the outer wall of the cup assembly. When the user needs to remove the grinding device, they can directly operate the control element to drive the external magnetic component to unlock the grinding device, facilitating easy removal. The locking device also includes a limiting block to restrict the control element, ensuring that the control element and external magnetic component remain in the unlocked position without requiring continuous pressing of the control element, making it convenient for the user to remove the grinding device. When the user no longer needs to operate the grinding device, they can actively push the control element to return the external magnetic component to the locked position. This reliably locks the grinding device inside the cup assembly, preventing it from falling off or flying out, ensuring the safety and reliability of the food processor. Even if the user forgets to manually reset the external magnetic component, when the user uses the food processor again, the base can actively push the reset element, causing the external magnetic component to return to the locked position, ensuring reliable installation of the food processor. In particular, the reset component utilizes the weight of the cup assembly itself and the base to complete the installation of the cup assembly, without requiring direct user participation. Furthermore, the user's perception is minimal during the reset process, thus achieving a safe and reliable result without the user's noticeable awareness.

[0090] It is understandable that the operating component, external magnetic component, and reset component can also be directly installed on the outer side wall of the cutter head without the cup body support.

[0091] Understandably, the guide groove of the mounting bracket is arranged circumferentially, and the operating member pushes the mounting bracket, which reciprocates along the circumferential direction of the cup assembly to move closer to or further away from the inner magnetic element, thereby locking or unlocking the crushing device.

[0092] Understandably, a rotating mounting post is provided between the operating member and the cup body assembly, so that the operating member can be reciprocated along the rotating mounting post, pushing the operating member to rotate and further pushing the outer magnetic member to move radially or circumferentially, so as to move closer to or away from the inner magnetic member.

[0093] Understandably, the push guide groove is provided with stepped grooves, and the limiting block can cooperate with different stepped grooves of the push guide groove so that the operating member is in the locked or unlocked position of the crushing device.

[0094] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. All equivalent changes and modifications made in accordance with this application are covered by the claims of this application, and will not be listed here.

Claims

1. A food processor using safety, characterized by, The food processor comprises, a base provided with a motor and a driving magnetic disk assembly driven by the motor; a cup assembly detachably mounted on the base, the cup assembly comprising a cup, a crushing device detachably mounted on the inner bottom of the cup; the crushing device comprising a crushing element, a driven magnetic disk assembly magnetically driven by the driving magnetic disk assembly and driving the crushing element to work, and an inner magnetic element; a locking device arranged on the outer side of the cup for locking and unlocking the crushing device, comprising a control element, an outer magnetic element magnetically attracted to the inner magnetic element, and a reset element; wherein the control element is arranged on the bottom of the cup assembly and extends out of the outer sidewall of the cup assembly, and the control element is operated to push the outer magnetic element away from the inner magnetic element to unlock the crushing device; the base can push the reset element and push the outer magnetic element close to the inner magnetic element to lock the crushing device.

2. The safe food processor for use as claimed in claim 1, wherein, The cup is provided with a locking position and an unlocking position for defining the control element, and the control element is operated from the locking position to the unlocking position to make the outer magnetic element away from the inner magnetic element, and the reset element pushes the control element from the unlocking position to the locking position.

3. The safe food processor for use as claimed in claim 2, wherein, The sidewall of the cup is provided with an operation groove for the control element to extend out.

4. The safe food processor for use as defined in claim 2, wherein The cup is provided with a limiting block matched with the control element, and the limiting block and the control element are provided with a locking position and an unlocking position matched with each other.

5. The safe food processor for use as defined in claim 1, wherein The cup is provided with a magnetic attraction position and a separation position for defining the outer magnetic element, and the control element is operated to drive the outer magnetic element from the magnetic attraction position to the separation position, and the reset element pushes the outer magnetic element from the separation position to the magnetic attraction position.

6. The safe food processor for use as defined in claim 1, wherein The reset element comprises a reset rod arranged on the bottom of the cup, and the reset rod is moved by the base to push the outer magnetic element to lock the crushing device.

7. The safe food processor for use as defined in claim 1, wherein The cup assembly and the outer magnetic element are provided with a guide groove and a guide column matched with each other, the guide groove extends along the radial direction of the cup assembly, and the outer magnetic element reciprocates along the radial direction of the guide groove to approach or move away from the inner magnetic element.

8. The safe food processor for use as defined in claim 1, wherein The cup assembly and the outer magnetic element are also provided with a guide groove and a guide column matched with each other, the guide groove extends along the circumferential direction of the cup assembly, and the outer magnetic element reciprocates along the circumferential direction of the guide groove to approach or move away from the inner magnetic element.

9. The safe food processor for use as claimed in claim 6 or 7, characterized in that, The control element and the outer magnetic element are also provided with a pushing surface and a sliding surface matched with each other, and the pushing surface or the sliding surface has an included angle with the moving direction of the control element.

10. The safe food processor for use as defined in claim 1, wherein The locking device further comprises an elastic element for pushing the outer magnetic element to reset; or, the locking device further comprises an elastic element for pushing the control element to reset; or, the locking device further comprises an elastic element for pushing the reset element to reset.

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