Food processor with double safety mechanisms

Abstract

The food processor comprises a body and a motor, a heating element is arranged at the bottom of a cup body, a transmission shaft of the motor extends into an inner cavity of the cup body and is connected with a stirring knife, a cup cover is detachably arranged on a top opening of the cup body, a pressure relief opening is formed in the cup cover, a top cover is connected to the pressure relief opening, and the stirring knife is connected to the top cover. The body is provided with a top cover bearing part, the top cover bearing part is provided with a first switch device and a second switch device which are connected to a working circuit in series, the cup cover is provided with a trigger structure corresponding to the first switch device and the second switch device, and during working, the top cover is firstly placed on the top cover bearing part, and after the cup cover is installed in place, the top cover is placed on the top cover bearing part. When the triggering structure starts the second switch device, the triggering structure presses the cup cover to start the first switch device; the food processor needs the top cover to serve as a switch key of a working circuit, it can be ensured that the pressure relief opening can be completely opened in the use process of the food processor, and meanwhile the abnormal test requirement in safety regulations is met.

Description

Technical Field

[0001] This utility model relates to the field of food processors, specifically a food processor equipped with a dual safety mechanism. Background Technology

[0002] Currently, food processors, such as the high-speed blender with automatic feeding function described in Chinese Patent No. CN202410091988.0, mainly include a base and a cup body. The cup body has a lid assembly at its opening, and blades are installed inside the cup body. The base is equipped with a power device that can drive the blades to rotate. The lid assembly includes a top cover with a feeding port. A feeding cover is detachably installed at the feeding port. In safety testing, when the top cover does not have a pressure relief structure, it is necessary to ensure that the feeding cover can be removed from the feeding port during use to ensure that the pressure inside the cup body can be released during heating. Therefore, a safety mechanism needs to be added to the soy milk maker to ensure its safe use. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a simple and reasonable food processor with a dual safety mechanism.

[0004] A food processor with a dual safety mechanism includes a main body, a cup body, and a motor housed within the main body. A heating element is located at the bottom of the cup body. The motor is mounted on the lower side of the cup body, and its drive shaft extends into the inner cavity of the cup body and is connected to a stirring blade. A lid is detachably mounted on the top opening of the cup body. A pressure relief port communicating with the inner cavity of the cup body is provided on the lid, and a top cover is detachably connected to the pressure relief port. The main body has a top cover receiving portion, on which a first switch and a second switch connected in series in the working circuit are provided. The cup cover has a triggering structure corresponding to the first and second switches. During operation, the top cover is first placed on the top cover receiving portion, and after the cup cover is installed in place, the triggering structure activates the second switch while simultaneously pressing the top cover to activate the first switch.

[0005] The objective of this utility model can also be achieved by the following technical measures:

[0006] As a more specific solution, the top surface of the top cover receiving part is provided with a hook groove, and the top or side wall of the top cover is provided with a hanging ear. The top cover is hung in the hook groove through the hanging ear so as to be placed on the top cover receiving part.

[0007] As a further embodiment, the first switching device includes a first micro-motion triggering component, with a contact protruding from the hook groove and the hook pressing on top of the contact; the triggering structure includes a first pressing part, and after the cup lid is installed in place, the first pressing part drives the hook to move down and press the contact to activate the first micro-motion triggering component.

[0008] As a further embodiment, the second switching device includes a second micro-motion triggering component, which is provided with a second contact; the triggering structure includes a second pressing part, which presses the second contact after the cup lid is installed in place to activate the second micro-motion triggering component.

[0009] As a further embodiment, the second switching device includes a safety sensing element, and the triggering structure includes a sensing element built into the cup lid. After the cup lid is installed in place, the sensing element acts on the safety sensing element, causing the safety sensing element to generate a working signal; the safety sensing element is a Hall switch, and the sensing element is a magnetic block.

[0010] As a further embodiment, the top surface of the top cover receiving part is provided with a protective groove, the hook groove is opened in the protective groove and the height difference between the hook groove and the protective groove is set, the second contact protrudes into the protective groove, and the first contact part and the second contact part are in the shape of a protrusion and extend downward in the direction of the protective groove.

[0011] As a further embodiment, the cup lid is screwed onto the mouth of the cup body via a threaded structure. The first and second pressing parts are positioned on the cup lid in the direction of rotation. The hook groove is located on the side of the protective groove away from the inlet. The first and second pressing parts cut into the clearance groove from the inlet side, and their bottom corners are provided with inclined cutting surfaces that respectively press and push the first or second contact.

[0012] As a further embodiment, the first micro-motion triggering component and / or the second micro-motion triggering component both include a micro switch and a transmission rod adjacent to or abutting the upper side of the on / off switch of the micro switch. A reset spring is also provided between the transmission rod and the micro switch. A contact one or a contact two extends from the top end of the transmission rod, and an avoidance through hole is provided on the top surface of the top cover receiving part corresponding to the contact one or the contact two.

[0013] As a further embodiment, the top cover support includes a convex shell formed by stretching outward from the side wall of the main body, and an installation box is provided inside the convex shell. The first micro-motion trigger component and the second micro-motion trigger component are assembled in the installation box and together with the installation box form a quick-release installation module.

[0014] As a further embodiment, the edge of the cup lid extends with a cover plate that matches the shape of the convex shell, the first and second pressing parts are integrally connected to the bottom surface of the cover plate, and a booster plate extends upward from the top surface of the cover plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention relates to a food processor with a dual safety mechanism. This food processor requires the top cover to act as a switch key for the working circuit, ensuring that the pressure relief port can be fully opened during use, while also meeting the abnormal testing requirements in safety regulations. It is simple to operate, has ingenious logic, low cost, and offers better safety and user experience.

[0017] In addition, a hanging ear is added to the top cover. On the one hand, the hanging ear can be used as a transmission component to trigger the first switch device. On the other hand, when the food processor is used as a soy milk maker, after the soy milk is made, the top cover can be placed on the pressure relief port, making it convenient for consumers to lift the food processor and improving its portability.

[0018] Furthermore, the food processor, along with the first and second switch devices connected in series in the working circuit, ensures that the lid is also properly installed before using the top cover as a switch key, thus providing dual safety protection and enhancing the safety of the food processor. Attached Figure Description

[0019] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of this utility model (the top cover is installed on the pressure relief port).

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the top cover in this utility model.

[0021] Figure 3 This is a schematic diagram of the cup lid structure in this utility model.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the first micro-motion triggering component in this utility model.

[0023] Figure 5 for Figure 4 Enlarged structural diagram at point B.

[0024] Figure 6 This is a schematic diagram of the cross-sectional structure of the second micro-motion triggering component in this utility model.

[0025] Figure 7 for Figure 6 Enlarged structural diagram at point C.

[0026] Figure 8 This is an exploded view of the installation module in this utility model.

[0027] Figure 9 This is a schematic diagram of another embodiment of the second switching device in this utility model. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See Figures 1 to 8 As shown, a food processor with a dual safety mechanism includes a main body 1, a cup body 21 and a motor 3 disposed within the main body 1. The bottom of the cup body 2 is provided with a heating element 4. The motor 3 is mounted on the lower side of the cup body 2, and its drive shaft extends into the inner cavity of the cup body 2 and is connected to a stirring blade 5. A cup lid 22 is detachably mounted on the top opening of the cup body 2. A pressure relief port 201 communicating with the inner cavity of the cup body 2 is provided on the cup lid 22. A top cover 6 is detachably connected to the pressure relief port 201. A top cover receiving part 19 is provided on the main body 1. A first switch device and a second switch device are provided on the top cover receiving part 19 and connected in series in the working circuit. The cup lid 22 is provided with a triggering structure corresponding to the first switch device and the second switch device. During operation, the top cover 6 is first placed on the top cover receiving part 19. After the cup lid 22 is installed in place, the triggering structure of the cup lid 22 activates the second switch device while the triggering structure presses the top cover 6 to activate the first switch device.

[0030] This food processor requires the top cover 6 as the switch key for the working circuit, which ensures that the pressure relief port can be fully opened during use, while meeting the abnormal testing requirements in safety regulations. It is simple to operate, has ingenious logic, low cost, and better safety and user experience.

[0031] Furthermore, the food processor, together with the first and second switch devices, is connected in series in the working circuit. The premise for using the top cover 6 as a switch key is to ensure that the cup lid 22 is also installed in place, thereby playing a dual safety protection role and improving the safety of the food processor.

[0032] The top surface of the top cover receiving part 19 is provided with a hook groove 12, and the top or side wall of the top cover 6 is provided with a hanging ear 61. The top cover 6 is hung in the hook groove 12 through the hanging ear 61 so as to be placed on the top cover receiving part 19. The addition of the hanging ear 61 to the top cover 6 serves two purposes: firstly, the hanging ear 61 is used as a transmission component; secondly, when the food processor is used as a soy milk maker, after the soy milk is made, the top cover can be placed on the pressure relief port 201, making it convenient for consumers to remove the food processor and improving its portability.

[0033] The first switching device includes a first micro-motion triggering component 7, with a contact 701 protruding from the hook groove 12 and the hook pressing on the contact 701. The triggering structure includes a first pressing part 24. After the cup lid 22 is installed, the first pressing part 24 drives the hook 61 to move down and press the contact 701 to activate the first micro-motion triggering component 7.

[0034] The safety mechanism of the top cover 6 is achieved by the mechanical structure of the first micro-motion trigger component 7, which prevents the electronic switch from malfunctioning or being accidentally triggered by external influences. The first micro-motion trigger component 7 mainly ensures that the food processor can work normally after the top cover 6 is installed in place and the pressure relief port 201 is opened.

[0035] The second switching device includes a second micro-motion triggering component 8, which is provided with a second contact 801; the triggering structure includes a second pressing part 25. After the cup lid 22 is installed in place, the second pressing part 25 presses the second contact 801 to activate the second micro-motion triggering component 8.

[0036] The second micro-motion trigger component 8 is mainly used to ensure that the cup lid 22 is installed in place before the food processor can work normally. The first micro-motion trigger component 7 and the second micro-motion trigger component 8 form a double safety mechanism to improve the safety of the food processor. After the cup lid 22 is installed in place, the triggering distance between the first pressing part 24 and the hook groove 12 ensures that the hook groove 12 can only be hung with the thickness of the corresponding hanging ear 61, preventing other hard objects from being placed in the hook groove 12. If the hard object is too thin, the first micro-motion trigger component 7 will not be activated, while if the hard object is too thick, it will push up the cup lid 22, thus preventing the second micro-motion trigger component 8 from being activated.

[0037] In more embodiments, see Figure 9 As shown, the second switching device can also be a safety sensing element. The triggering structure is a sensing element built into the cup lid. After the cup lid 22 is installed in place, the sensing element acts on the safety sensing element, causing the safety sensing element to generate a working signal. The safety sensing element is a Hall switch 16, and the sensing element is a magnet 17. Magnetic induction is used to detect whether the cup lid 22 is installed in place.

[0038] The top surface of the top cover receiving part 19 is provided with a protective groove 13. The hook groove 12 is opened in the protective groove 13 and the height difference between the hook groove 12 and the protective groove 13 is set. The second contact 801 protrudes into the protective groove 13, and the first pressing part 24 and the second pressing part 25 are in the shape of protrusions and extend downward in the direction of the protective groove 13. The first contact 701 and the second contact 801 are respectively disposed in the hook groove 12 and the protective groove 13, which can prevent other foreign objects from pressing against the first contact 701 or / and the second contact 801 to activate the first switch device and the second switch device.

[0039] The cup lid 22 is screwed onto the mouth of the cup body 21 via a threaded structure. The first pressing part 24 and the second pressing part 25 are arranged on the cup lid 22 in the direction of rotation. The hook groove 12 is opened on the side of the protective groove 13 away from the inlet. The first pressing part 24 and the second pressing part 25 cut into the protective groove 13 from the inlet side, and their bottom corners are provided with inclined cutting surfaces 241 and 251 for pressing and pushing the first contact 701 or the second contact 801, respectively.

[0040] In addition to being inclined, the inclined cutting surfaces 241 and 251 can also be arc-shaped. When the cup lid 22 rotates circumferentially, the inclined cutting surfaces 241 and 251 can squeeze the push contact 701 and the second contact 801 downward, thereby triggering the first micro-motion triggering component 7 and the second micro-motion triggering component 8.

[0041] In addition, a limiting part 252 extends from the side of the second pressing part 25 away from the first pressing part 24. A non-rotating surface 131 that abuts against the limiting part 252 is provided on one side of the relief groove 13. The cooperation between the limiting part 252 and the non-rotating surface 131 can ensure that the first pressing part 24 and the second pressing part 25 are inserted into the designated position to achieve pressing cooperation, and avoid the cup lid 22 from rotating excessively.

[0042] The first micro-trigger component 7 and / or the second micro-trigger component 8 both include a micro switch 901 and a transmission rod 902 adjacent to or abutting against the upper side of the on / off switch of the micro switch 901. A reset spring 903 is also provided between the transmission rod 902 and the micro switch 901. A contact 701 or a contact 801 extends from the top of the transmission rod 902. An avoidance through hole 111 is provided on the top surface of the top cover receiving part 19 corresponding to the contact 701 or the contact 801.

[0043] The safety mechanism works as follows: the top cover 6 acts as a switch key. Before starting the food processor, the user needs to hang the top cover 6 in the hook slot 12 via the lug 61. Then, the cup lid 22 is screwed onto the rim of the cup body 21. During the rotation of the cup lid 22, the first pressing part 24 of the cup lid 22 cuts into the upper part of the lug 61 and presses the lug 61. This causes the lug 61 to press the contact 701, which in turn drives one set of transmission rods 902 to trigger the micro switch 901. Crucially, and simultaneously, the second contact part 25 cuts into the clearance groove 13 and directly presses the second contact 801, thereby driving another set of transmission rods 902 to trigger the on / off switch of the micro switch 901. After the two micro switches 901 are triggered simultaneously, a working signal is generated to connect the working circuit. This safety mechanism ensures that the top cover 6 is removed from the pressure relief port 201 and that the cup lid 22 is installed on the cup mouth, achieving two goals at once and thus meeting the abnormal test requirements in the safety regulations.

[0044] The top cover receiving part 19 includes a convex shell 11 formed by stretching outward from the side wall of the main body 1. A mounting box 14 is provided inside the convex shell 11. The mounting box 14 includes a box body and a box cover. The first micro-motion trigger component 7 and the second micro-motion trigger component 8 are assembled in the box body. The box cover fixes the first micro-motion trigger component 7 and the second micro-motion trigger component 8 in the box body, and makes the first micro-motion trigger component 7 and the second micro-motion trigger component 8 and the mounting box 14 form a quick-release mounting module A. The mounting module A facilitates the disassembly and assembly of the safety sensing element, has a simpler structure, and improves production efficiency.

[0045] The edge of the cup lid 22 extends a cover plate 26 that matches the shape of the convex shell 11. The first pressing part 24 and the second pressing part 25 are integrally connected to the bottom surface of the cover plate 26. A booster plate 27 extends upward from the top surface of the cover plate 26.

[0046] The edge of the cup lid 22 extends a cover plate 26 that matches the shape of the convex shell 11. The first pressing part 24 and the second pressing part 25 are integrally connected to the bottom surface of the cover plate 26. A push plate 27 extends upward from the top surface of the cover plate 26. When opening or closing the cup lid 22, the push plate 27 prevents the user's fingers from slipping and helps the user exert force to open or close the cup lid 22.

[0047] In the above embodiment, the outer wall surface of the cap 23 is provided with an external thread 231, and the inner wall surface of the top cover 6 is provided with an internal thread 62. The top cover 6 is screwed onto the cap 23 through the cooperation of the external thread 231 and the internal thread 62. The structure is simple and the top cover 6 is easy to disassemble and assemble.

[0048] A sealing ring 18 is embedded in the inner surface of the top cover 6. After the top cover 6 is screwed to the cap 23, the sealing ring 18 elastically presses against the top edge of the cap 23 and seals the pressure relief port 201. Since the food processor needs to be carried around, the sealing ring 14 is used to seal the pressure relief port 201 to prevent leakage from the pressure relief port 201.

[0049] Furthermore, the lid 22 can be made of a transparent material, including glass or plastic, to allow users to observe the cooking process and adjust the recipe accordingly; the cup body 21 is made of a metal material, including stainless steel.

[0050] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A food processor provided with a double safety mechanism, comprising a body (1) and a cup (21) and a motor (3) arranged in the body (1), the bottom of the cup (21) is provided with a heating element (4), the motor (3) is assembled at the lower side of the container (2), the transmission shaft of the motor (3) extends into the inner cavity of the cup (21) and is connected with a stirring blade (5), the top of the cup (21) is detachably provided with a cup cover (22), the cup cover (22) is provided with a pressure relief port (201) communicating with the inner cavity of the cup (21), and the pressure relief port (201) is detachably connected with a top cover (6), characterized in that: The body (1) is provided with a top cover placing part (19), the top cover placing part (19) is provided with a first switch device and a second switch device connected in series on the working circuit, the cup cover (22) is provided with a trigger structure corresponding to the first switch device and the second switch device, and in working, the top cover (6) is placed on the top cover placing part (19) first, and after the cup cover (22) is installed in place, the cup cover (22) triggers the second switch device while the trigger structure presses the top cover (6) to trigger the first switch device. ​ 2. The food processor with double safety mechanism according to claim 1, characterized in that: The top surface of the top cover placing part (19) is provided with a hook groove (12), and the top or side wall of the top cover (6) is provided with a hook ear (61), the top cover (6) is hung in the hook groove (12) through the hook ear (61), so as to be placed on the top cover placing part (19).

3. The food processor with dual safety mechanism according to claim 2, characterized in that: The first switch device comprises a first micro-motion trigger assembly (7), a first contact (701) of the first micro-motion trigger assembly (7) protrudes into the hook groove (12), and the hook ear is pressed above the first contact (701); the trigger structure comprises a first pressure part (24), after the cup cover (22) is installed in place, the first pressure part (24) drives the hook ear (61) to press the first contact (701) downward, so as to trigger the first micro-motion trigger assembly (7).

4. The food processor with dual safety mechanism according to claim 3, characterized in that: The second switch device comprises a second micro-motion trigger assembly (8), and the second micro-motion trigger assembly (8) is provided with a second contact (801); the trigger structure comprises a second pressure part (25), after the cup cover (22) is installed in place, the second pressure part (25) presses the second contact (801), so as to trigger the second micro-motion trigger assembly (8).

5. The food processor with dual safety mechanism according to claim 2, characterized in that: The second switch device comprises a safety sensing element, the trigger structure comprises a sensing element built in the cup cover, after the cup cover (22) is installed in place, the sensing element acts on the safety sensing element, so that the safety sensing element generates a working signal; the safety sensing element is a Hall switch (16), and the sensing element is a magnet block (17).

6. The food processor with dual safety mechanism according to claim 4, characterized in that: The top surface of the top cover placing part (19) is provided with a protection groove (13), the hook groove (12) is arranged in the protection groove (13) and is arranged with a height difference between the protection groove (13), the second contact (801) protrudes into the protection groove (13), and the first pressure part (24) and the second pressure part (25) are in the form of lugs and are arranged to extend downward in the direction of the protection groove (13).

7. The food processor with dual safety mechanism according to claim 6, characterized in that: The cup cover (22) is screwed on the cup mouth of the cup body (21) through a threaded structure, the first pressure part (24) and the second pressure part (25) are arranged on the cup cover (22) in front of and behind the rotation direction, the hook groove (12) is arranged on the side away from the entrance of the protection groove (13), the first pressure part (24) and the second pressure part (25) are cut into the protection groove (13) from the entrance side, and the bottom corners thereof are provided with inclined cutting surfaces (241, 251) for respectively pressing the first contact (701) or the second contact (801).

8. The food processor with dual safety mechanism according to claim 4, characterized in that: The first micro-motion trigger assembly (7) or / and the second micro-motion trigger assembly (8) each comprises a micro-motion switch (901) and a transmission rod (902) adjacent to or abutting on the upper side of the operating key of the micro-motion switch (901), and a reset spring (903) is arranged between the transmission rod (902) and the micro-motion switch (901), and the top end of the transmission rod (902) extends a contact one (701) or a contact two (801), and the top surface of the top cover receiving part (19) is provided with a avoiding through hole (111) corresponding to the contact one (701) or the contact two (801).

9. The food processor with dual safety mechanism according to claim 4, characterized in that: The top cover receiving part (19) comprises a convex shell (11) which is formed by stretching outwards from the side wall of the body (1), and the convex shell (11) is provided with a mounting box (14), and the first micro-motion trigger assembly (7) and the second micro-motion trigger assembly (8) are assembled in the mounting box (14) and form a mounting module (A) which can be quickly disassembled with the mounting box (14).

10. The food processor with dual safety mechanism according to claim 4, characterized in that: The edge of the cup cover (22) extends a cover plate (26) which matches the shape of the convex shell (11), the first touch pressure part (24) and the second touch pressure part (25) are integrally connected to the bottom surface of the cover plate (26), and the top surface of the cover plate (26) extends a push plate (27) upward.

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