Automatically disassembling shaftless device and small kitchen appliance thereof

Abstract

The invention discloses an automatically detachable shaftless device, comprising a driven magnetic body arranged inside a container body; an external linkage member, which has a first inner contact and a second inner contact therein; the internal linkage member, on which is provided a first outer contact which can abut against the first inner contact and a second outer contact which can be magnetically attracted to the second inner contact, the internal linkage member being threadedly connected to the external linkage member, and an active magnetic body which is magnetically attracted to the driven magnetic body being installed on the internal linkage member; a connecting seat which can be threadedly connected to the external linkage member, the connecting seat being arranged below the external linkage member, achieving the purpose of automatically assembling and automatically separating two magnetic parts, thereby solving the problem that it is difficult to take out a stirring blade due to the large attraction between the magnetic parts. The invention also discloses a small kitchen appliance, comprising a seat body arranged with a container body and a shaftless device arranged on the seat body, the driven magnetic body is provided with a functional structure for chopping or stirring, thereby effectively ensuring the hygiene of the small kitchen appliance.

Description

Technical Field

[0001] The invention relates to the field of kitchen appliances, and in particular to an automatically detachable shaftless device and a small kitchen appliance thereof. Background Art

[0002] With the advancement of science and technology, small kitchen appliances for stirring have developed a shaftless stirring method from the traditional stirring method using a transmission shaft. For example, the Chinese invention patent with the announcement number CN211722829U published on October 23, 2020 discloses a stirring component and a cooking utensil having the same. The patent document discloses the existing shaftless structure and transmission principle: the driving mechanism is arranged in the base of the utensil and drives the stirring component to rotate by a magnetic mechanism. Specifically, the stirring base includes a stirring seat, which is a shaftless stirring structure. The stirring seat rotates under the drive of the magnetic mechanism to drive the stirring blades to rotate. The stirring seat has an inner cavity, and the magnetic mechanism includes a first magnetic member arranged in the inner cavity and a second magnetic member arranged in the base of the utensil. The first magnetic member is driven to rotate when the second magnetic member rotates.

[0003] It can be known from the prior art that when the two magnetic parts are attracted to each other, the magnetic part at the bottom rotates to drive the magnetic part in the pot to rotate, that is, the motor indirectly drives the stirring blade to rotate, thereby realizing a shaftless rotating connection between the motor and the pot. After cooking, the stirring blade needs to be taken out of the pot for cleaning, but due to the strong attraction between the magnetic parts, the user needs to use a force greater than the magnetic force to take out the stirring blade. Therefore, it is generally not easy to take out the stirring blade from the pot for cleaning, and long-term incomplete cleaning is likely to leave health hazards. Summary of the invention

[0004] In order to overcome at least one of the defects described in the above-mentioned prior art, the present invention provides an automatically detachable shaftless device, which realizes the purpose of automatic assembly and automatic separation of two magnetic parts, thereby solving the problem that the stirring blade is difficult to remove due to the strong attraction between the magnetic parts. At the same time, the present invention also discloses a small kitchen appliance based on the shaftless device, which is convenient for taking out the stirring blade, thereby effectively ensuring the hygiene of the small kitchen appliance with the shaftless device.

[0005] The technical solution adopted by the present invention to solve the problem is:

[0006] An automatic disassembly and connection-free shaftless device, comprising:

[0007] A driven magnetic body configured inside the container;

[0008] An outer linkage member, which has a first inner contact and a second inner contact built therein, wherein the first inner contact is distributed near the top of the outer linkage member, and the second inner contact is distributed below the first inner contact;

[0009] An inner linkage member is provided with a first outer contact that can abut against the first inner contact and a second outer contact that can abut against the second inner contact. The inner linkage member is located below the driven magnetic body and is threadedly connected to the outer linkage member. When the outer linkage member and the inner linkage member rotate relative to each other, the rotation between the outer linkage member and the inner linkage member is converted into relative sliding under the action of the thread. Furthermore, the outer linkage member is vertically arranged perpendicular to the driven magnetic body or the bottom of the container body. The outer linkage member is rotated to make the outer linkage member and the inner linkage member rise and fall and slide. An active magnetic body that is magnetically attracted to the driven magnetic body is installed on the inner linkage member, which will drive the active magnetic body to be raised and lowered, that is, to make the active magnetic body approach or move away from the driven magnetic body.

[0010] A connecting seat that can be threadedly connected to the outer linkage member, the connecting seat is arranged below the outer linkage member, when the outer linkage member descends onto the connecting seat and continues to rotate, the outer linkage member will be threadedly connected to the connecting seat, and the rotation of the outer linkage member is converted into lifting and sliding on the connecting seat through the action of the thread;

[0011] In combination with the above structure, the principle of automatic disassembly and assembly and the rotation working principle of the shaftless device are:

[0012] The magnetic field formed between the driven magnetic body and the active magnetic body includes when the magnetic induction lines are generated between the driven magnetic body and the active magnetic body and gradually strengthened, the driven magnetic body and the active magnetic body are in the automatic installation process, and when the active magnetic body drives the driven magnetic body to rotate by the magnetic induction lines, the driven magnetic body is in a rotating working state, as follows:

[0013] The outer linkage member is rotated until the first inner contact abuts against the first outer contact, and when the outer linkage member is separated from the connecting seat, the driven magnetic body and the active magnetic body are in an automatic installation process, that is, the driven magnetic body is in the process of automatic installation, and the outer linkage member is rotated so that the outer linkage member is lifted and slid on the connecting seat, and synchronously, the outer linkage member and the inner linkage member are relatively rotated so that the inner linkage member is assembled to the inside of the outer linkage member, and the active magnetic body is close to the driven magnetic body, so that the magnetic force or magnetic field between the active magnetic body and the driven magnetic body is enhanced, until the first inner contact abuts against the first outer contact, and the outer linkage member is separated from the connecting seat, the assembly of the shaftless device is completed;

[0014] When the first inner contact abuts against the first outer contact and the outer linkage member is still rotating, the outer linkage member will drive the inner linkage member to rotate, and under the action of the magnetic force, the driven magnetic body rotates along with the active magnetic body, and the driven magnetic body is in a rotating working state;

[0015] Reverse the external linkage member until the second inner contact abuts the second outer contact and the external linkage member is screwed into the connecting seat, and the driven magnetic body and the active magnetic body are in an automatic disassembly process, that is, the driven magnetic body is in the automatic disassembly process, and reverse the external linkage member so that the external linkage member and the inner linkage member rotate relative to each other until the second inner contact abuts the second outer contact and the external linkage member is screwed into the connecting seat, and the external linkage member is detached downward relative to the inner linkage member, then the active magnetic body moves away from the driven magnetic body, so that the magnetic force or magnetic field between the active magnetic body and the driven magnetic body is weakened, and finally, the magnetic induction lines between the active magnetic body and the driven magnetic body disappear, and the magnetic field between the driven magnetic body and the active magnetic body is eliminated.

[0016] Therefore, based on the above, it can be seen that the principle of converting rotation in the threaded connection process into linear sliding is cleverly utilized, and the internal and external threaded assembly structure between the outer linkage and the inner linkage, and the threaded connection structure between the outer linkage and the connecting seat are coordinated to achieve the lifting and lowering adjustment of the distance between the active magnetic body and the driven magnetic body, and then adjust the magnetic force between the active magnetic body and the driven magnetic body, thereby achieving the purpose of automatic assembly of the active magnetic body and the driven magnetic body. At the same time, through the coordinated use of the outer linkage and the inner linkage, the driven magnetic body is also driven to rotate, thereby achieving the rotation effect of the shaftless device.

[0017] Furthermore, an automatically disassembling shaftless device also includes a limit ring and a positioning ring; a first external thread section is provided on the inner linkage member, the limit ring and the positioning ring are respectively located at both ends of the first external thread section and are both connected to the inner linkage member, the part of the limit ring protruding from the inner linkage member is the first external contact, and the positioning ring protrudes from the second external contact. Specifically, at least one limit column is arranged on the limit ring, the top end portion of the inner linkage member is provided with a limit end matched with the inner hole of the limit ring, and the inner linkage member is also provided with a limit groove corresponding to at least one limit column, the limit ring is nested and fixed on the limit end, and the limit column is correspondingly inserted into the limit groove. At this time, the limit column can be optionally located at the end of the first external thread segment, and the part of the limit column protruding outside the limit groove forms a first external contact for abutting against the first internal contact, so as to realize the limit of the external linkage member sliding to the upper side; the positioning ring is fixedly connected to the end of the other end of the first external thread segment, and an opening protrusion is arranged on it, and the opening protrusion is a second external contact for abutting against the second internal contact, so as to realize the limit of the external linkage member sliding to the lower side.

[0018] Furthermore, a first internal thread segment is provided inside the external linkage member and is threadedly connected to the first external thread segment, and the first internal thread segment slides between the limiting ring and the positioning ring, one end of the first internal thread segment is the first internal contact, and the other end is the second internal contact, thereby realizing a threaded connection between the external linkage member and the internal linkage member, and the first internal thread segment moves between the limiting ring and the positioning ring.

[0019] Furthermore, a second internal thread segment is provided inside the connecting seat, and a second external thread segment which can be screwed to the second internal thread segment is provided on the external linkage, thereby achieving the purpose of threaded connection between the external linkage and the connecting seat. The connecting seat is located directly below the external linkage and between the axial length difference between the first internal thread segment and the first external thread segment. When the external linkage rotates downward, the second external thread segment can be screwed to the second internal thread segment. In order to further ensure that the second external thread segment is screwed to the second internal thread segment during the descent of the external linkage, a center column is provided inside the connecting seat, and the interior of the external linkage 31 is plug-fitted to the center column through a bearing.

[0020] Furthermore, an automatically disassembling shaftless device also includes a transmission gear and a driving motor; the external linkage member is also provided with a gear portion meshing with the transmission gear, and the transmission gear is connected to the driving end of the driving motor. Therefore, the driving motor provides a power source and the force is transmitted to the gear portion through the transmission gear, thereby achieving the purpose of automatically driving the external linkage member to rotate, thereby achieving the purpose of automatic disassembly and rotation of the shaftless device.

[0021] Furthermore, an automatically detachable shaftless device also includes a switch electrically connected to the drive motor, and a switch ring that can contact the switch is provided on the outer side wall of the external linkage member, and the switch ring is located above the second external thread segment. The switch is located on one side of the external linkage member. When the second external thread segment is screwed to the connecting seat and the switch ring is about to contact the switch, the switch will control the drive motor to pause rotation or stop by powering off, thereby effectively ensuring the safety of the shaftless device during the automatic detachment process.

[0022] Furthermore, an automatically detachable shaftless device also includes a shielding member, which is fixedly connected to the inner linkage member, and the active magnetic body is fixedly installed on the top of the shielding member. The magnetic field at the bottom of the active magnetic body is blocked by the shielding member, thereby effectively preventing the magnetic field at the bottom of the active magnetic body from affecting several parts and electronic components below.

[0023] The present invention also discloses a small kitchen appliance based on a shaftless device, comprising a base body equipped with a container body. The small kitchen appliance based on the shaftless device also includes the shaftless device according to any one of claims 1 to 4, wherein the shaftless device is installed on the base body, and the driven magnetic body is placed in the container body; a functional structure for chopping or stirring is provided on the outside of the driven magnetic body, and specifically, the driven magnetic body is installed on the functional structure, and the functional structure can be a shell with a plurality of cutting blades on the outer wall, or a shell with a plurality of stirring rods or stirring parts on the outer wall. The driven magnetic body is installed and fixed on the functional structure. When the driven magnetic body rotates with the active magnetic body, it will drive the functional structure to chop or stir the food in the container. Therefore, the operator only needs to control the power on and off of the small kitchen appliance based on the shaftless device to start the drive motor, so as to quickly and conveniently complete the magnetic attraction or magnetic elimination between the driven magnetic body and the active magnetic body, thereby achieving the purpose of facilitating the disassembly and assembly of the functional structure. At the end of use, the functional structure can be conveniently taken out for subsequent cleaning, thereby effectively ensuring the hygiene of the small kitchen appliance with a shaftless device.

[0024] Furthermore, a small kitchen appliance based on a shaftless device also includes a temperature sensing element for detecting the real-time temperature of the container body; the temperature sensing element is located on the outside of the active magnetic body, and the temperature sensing element is fixedly mounted on the base body, so that when cutting meat or stirring food in the container body, the real-time temperature of the food during the cutting and cooking process is detected in real time through the temperature sensing element, thereby effectively controlling the temperature of the food during the cutting and cooking process, and thereby effectively ensuring the quality and taste of the food ingredients during the cutting and cooking process.

[0025] Furthermore, the temperature sensing element is located at the center of the active magnetic body, and the temperature sensing element is fixedly mounted on the seat. Specifically, the center settings of the outer linkage member and the inner linkage member both have a hollow structure, a through hole is provided on the center column or a through hole is provided on the connecting seat for passing a power cord of the temperature sensing element. The temperature sensing element can contact the bottom of the container body to detect the temperature inside the container body, and the power cord of the temperature sensing element can sequentially pass through the outer linkage member, the inner linkage member and the center column and be electrically connected to the control element of the small kitchen appliance.

[0026] In summary, the automatic detachable shaftless device provided by the present invention has the following technical effects:

[0027] 1) The purpose of lifting and lowering the active magnetic body on the inner linkage is achieved by screwing the outer linkage with the inner linkage and the outer linkage with the connecting seat, thereby adjusting and changing the magnetic field or magnetic force between the active magnetic body and the driven magnetic body, and then facilitating the disassembly and assembly of the driven magnetic body by controlling the magnetic field or magnetic force between the active magnetic body and the driven magnetic body. When disassembling and assembling, the outer linkage is rotated to adjust the lifting and lowering of the driven magnetic body on the inner linkage, so as to achieve the purpose of automatically assembling by enhancing the magnetic force between the active magnetic body and the driven magnetic body, and automatically separating by weakening the magnetic force between the active magnetic body and the driven magnetic body, thereby solving the problem that it is difficult to remove the stirring blade due to the strong attraction between the magnetic parts.

[0028] 2) By abutting the first inner contact of the outer linkage member against the first outer contact of the inner linkage member, not only the rotation of the outer linkage member drives the inner linkage member, and then the active magnetic body on the inner linkage member rotates to pull the driven magnetic body to rotate, but also the sliding limit between the outer linkage member and the inner linkage member is achieved, thereby preventing the inner linkage member from being separated from the outer linkage member when sliding and rising inside the outer linkage member;

[0029] 3) The second inner contact of the outer linkage member abuts against the second outer contact of the inner linkage member, which not only realizes the sliding limit between the outer linkage member and the inner linkage member, but also prevents the inner linkage member from being separated from the outer linkage member when sliding down inside the outer linkage member. At the same time, when the outer linkage member slides downward, it also effectively pulls the inner linkage member to move downward.

[0030] 4) The outer linkage part is screwed together with the connecting seat so that the outer linkage part rotates continuously. When the driven magnetic body is in rotation, the outer linkage part and the connecting seat are in a non-contact state, thereby avoiding friction and collision with the connecting seat when the outer linkage part rotates, thereby avoiding damage to the connecting seat. When the outer linkage part is reversed, the outer linkage part can be screwed to the connecting seat by means of the screw connection between the outer linkage part and the inner linkage part, and then the screw connection between the outer linkage part and the connecting seat is used to pull the outer linkage part and the inner linkage part to slide downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The overall structure diagram of the small kitchen appliance based on the shaftless device of the present invention;

[0032] Figure 2 is a structural diagram of the shaftless device in Example 1 of the present invention;

[0033] Figure 3 for Figure 1 A partial enlarged schematic diagram of the A direction;

[0034] Figure 4 for Figure 2 A local enlarged schematic diagram of the B direction;

[0035] Figure 5 is a structural diagram of a shaftless device in Embodiment 2 of the present invention;

[0036] Figure 6 It is a schematic diagram of the shaftless device in a rotating working state;

[0037] Figure 7 It is a schematic diagram of the shaftless device in an automatic installation state or an automatic disassembly state;

[0038] Figure 8 A schematic diagram of the switch ring touching the switch when the shaftless device is in the process of automatic disassembly;

[0039] Fig. 9 It is a first structural diagram of the outer linkage member in the shaftless device of the present invention;

[0040] Fig.10 is a second structural diagram of the outer linkage member in the shaftless device of the present invention;

[0041] Fig.11 It is a structural schematic diagram of the inner linkage member in the shaftless device of the present invention;

[0042] Fig.12 It is a structural schematic diagram of a connecting seat in the shaftless device of the present invention;

[0043] Fig.13 It is a schematic structural diagram of a limit ring in the shaftless device of the present invention;

[0044] Fig.14 for Figure 2 A local enlarged schematic diagram of the C direction.

[0045] The meanings of the reference numerals are as follows:

[0046] 1. Temperature sensing element; 21. Driven magnetic body; 22. Active magnetic body; 31. External linkage member; 311. First inner contact; 312. Second inner contact; 313. First inner thread segment; 314. Second outer thread segment; 315. Gear portion; 316. Switch ring; 32. Internal linkage member; 321. First outer contact; 322. Second outer contact; 323. First outer thread segment; 324. Limit end; 325. Limit groove; 41. Limit ring; 411. Limit column; 42. Positioning ring; 5. Connecting seat; 51. Second inner thread segment; 52. Center column; 61. Transmission gear; 62. Driving motor; 7. Switch; 8. Shielding member; 91. Seat body; 92. Container body; 93. Functional structure. DETAILED DESCRIPTION

[0047] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0048] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0050] Example 1

[0051] See also Figures 1 to 4 Combined with Figures 9 to 12 As shown, Figure 2 In order to clearly express the connection relationship between the various components in the shaftless device, Figure 2 As shown in a cross-sectional view, the present invention discloses an automatic detachable shaftless device, comprising:

[0052] A driven magnetic body 21 configured inside the container body 92;

[0053] The outer linkage member 31 has a first inner contact 311 and a second inner contact 312 therein, wherein the first inner contact 311 is located near the top of the outer linkage member 31, and the second inner contact 312 is located below the first inner contact 311;

[0054] The inner linkage member 32 is provided with a first outer contact 321 that can abut against the first inner contact 311 and a second outer contact 322 that can abut against the second inner contact 312. The inner linkage member 32 is located below the driven magnetic body 21 and is threadedly connected to the outer linkage member 31. When the outer linkage member 31 and the inner linkage member 32 rotate relative to each other, the rotation between the outer linkage member 31 and the inner linkage member 32 is converted into relative sliding by the action of the thread. Further, the outer linkage member 31 is vertically arranged perpendicular to the driven magnetic body 21 or the bottom of the container body 92. The outer linkage member 31 is rotated to make the outer linkage member 31 and the inner linkage member 32 rise and fall and slide. The inner linkage member 32 is equipped with an active magnetic body 22 that is magnetically attracted to the driven magnetic body 21. This will drive the active magnetic body 22 to be raised and lowered, that is, to make the active magnetic body 22 approach or move away from the driven magnetic body 21.

[0055] The connecting seat 5 can be threadedly connected with the outer linkage member 31. The connecting seat 5 is arranged below the outer linkage member 31. When the outer linkage member 31 descends onto the connecting seat 5 and continues to rotate, the outer linkage member 31 is screwed onto the connecting seat 5. Through the action of the thread, the rotation of the outer linkage member 31 is converted into lifting and sliding on the connecting seat 5.

[0056] In the present embodiment, the first inner contact 311 and the second inner contact 312 are respectively used to abut against the corresponding first outer contact 321 and the second outer contact 322 during the rising or falling process. When the first inner contact 311 and the second inner contact 312 abut against the first outer contact 321 and the second outer contact 322 respectively, the inner linkage member 32 is blocked by the first inner contact 311 or the second inner contact 312, and the inner linkage member 32 can no longer slide relatively. When the inner linkage member 32 slides up relative to the outer linkage member 31, it will rise to a certain position for limiting. Similarly, when the inner linkage member 32 slides down relative to the outer linkage member 31, it will fall to a certain position for limiting, thereby preventing the inner linkage member 32 from sliding on the outer linkage member 31. When the inner part of the outer linkage 31 slides upward or downward, it is separated from the outer linkage 31. Through the interaction between the outer linkage 31 and the inner linkage 32, the outer linkage 31 drives the inner linkage 32 to rotate synchronously or drives the inner linkage 32 to slide together. At the same time, the inner linkage 32 rotates relative to the outer linkage 31 to slide upward, and the inner linkage 32 also synchronously realizes the assembly of the inner linkage 32 to the inner part of the outer linkage 31, that is, the assembly effect between the inner linkage 32 and the outer linkage 31 is realized. The inner linkage 32 rotates relative to the outer linkage 31 to slide downward, and the inner linkage 32 also synchronously realizes the detachment of the inner linkage 32 to the inner part of the outer linkage 31, that is, the disassembly effect of the inner linkage 32 and the outer linkage 31 is realized.

[0057] Based on the above structure, the principle of automatic disassembly and assembly and the rotation working principle of the shaftless device are:

[0058] The magnetic field formed between the driven magnetic body 21 and the active magnetic body 22 includes that when magnetic induction lines are generated between the driven magnetic body 21 and the active magnetic body 22 and gradually increase, the driven magnetic body 21 and the active magnetic body 22 are in an automatic installation process, and when the active magnetic body 22 drives the driven magnetic body 21 to rotate by using the magnetic induction lines, the driven magnetic body 21 is in a rotating working state;

[0059] Specific combination Figure 6As shown, the outer linkage member 31 is rotated so that the outer linkage member 31 is lifted and slid on the connecting seat 5. Synchronously, the outer linkage member 31 and the inner linkage member 32 are relatively rotated so that the inner linkage member 32 is assembled into the inner part of the outer linkage member 31. When the outer linkage member 31 is rotated until the first inner contact 311 abuts against the first outer contact 321, and the outer linkage member 31 is separated from the connecting seat 5, the active magnetic body 22 approaches the driven magnetic body 21 to generate and enhance the magnetic force or magnetic field between the driven magnetic body 21 and the active magnetic body 22. Then, the driven magnetic body and the active magnetic body are in an automatic installation process, that is, the driven magnetic body is in an automatic installation process.

[0060] Specific combination Figure 7 As shown, when the first inner contact 311 abuts against the first outer contact 321 and the outer linkage member 31 is still rotating, the outer linkage member 31 will drive the inner linkage member 32 to rotate. Under the action of the magnetic force, the driven magnetic body 21 rotates along with the active magnetic body 22, and the driven magnetic body 21 is in a rotating working state.

[0061] Specific combination Figure 7 As shown, the outer linkage member 31 is reversed, so that the outer linkage member 31 and the inner linkage member 32 rotate relative to each other, and then the outer linkage member 31 is detached downward relative to the inner linkage member 32. When the outer linkage member 31 is reversed until the second inner contact 312 abuts against the second outer contact 322, and the outer linkage member 31 is screwed into the connecting seat 5, the outer linkage member 31 slides downward on the connecting seat 5, and synchronously drives the inner linkage member 32 to slide downward. The driven magnetic body 21 and the active magnetic body 22 are in the automatic disassembly process, that is, the driven magnetic body 21 is in the automatic disassembly process, and the active magnetic body 22 is away from the driven magnetic body 21 to reduce the magnetic force or magnetic field between the driven magnetic body 21 and the active magnetic body 22. Finally, the magnetic induction lines between the active magnetic body 22 and the driven magnetic body 21 disappear, and the magnetic field between the driven magnetic body 21 and the active magnetic body 22 is eliminated.

[0062] Therefore, based on the above, it can be seen that the principle of converting rotation in the threaded connection process into linear sliding is cleverly utilized, and the internal and external threaded assembly structure between the outer linkage 31 and the inner linkage 32, and the threaded connection structure between the outer linkage 31 and the connecting seat 5 are coordinated to achieve the lifting and lowering adjustment of the distance between the active magnetic body 22 and the driven magnetic body 21, and then adjust the magnetic force between the active magnetic body 22 and the driven magnetic body 21, so as to achieve the purpose of automatic assembly of the active magnetic body 22 and the driven magnetic body 21. At the same time, through the coordinated use between the outer linkage 31 and the inner linkage 32, the driven magnetic body 21 is also driven to rotate, thereby achieving the effect of the rotation work of the shaftless device.

[0063] Among them, see Figure 4 , Fig.11 , Fig.13 and Fig.14, an automatic disassembly shaftless device also includes a limiting ring 41 and a positioning ring 42; a first external thread section 323 is provided on the inner linkage member 32, the limiting ring 41 and the positioning ring 42 are respectively located at both ends of the first external thread section 323 and are connected to the inner linkage member 32, the portion of the limiting ring 41 protruding from the inner linkage member 32 is a first external contact 321, and the positioning ring 42 protrudes from the second external contact 322. Specifically, at least one limiting column 411 is provided on the limiting ring 41, and the top end of the inner linkage member 32 is provided with a limiting end 324 adapted to the inner hole of the limiting ring 41, and the inner linkage member 32 is also provided with a limiting groove 324 corresponding to at least one limiting column 411. 25. The limiting ring 41 is nested and fixed on the limiting end 324, and the limiting column 411 is correspondingly inserted into the limiting groove 325. At this time, the limiting column 411 can be optionally located at the end of the first external thread section 323, and the part of the limiting column 411 protruding outside the limiting groove 325 forms a first external contact 321 for abutting against the first internal contact 311, so as to realize the limiting of the external linkage member 31 sliding to the upper side; the positioning ring 42 is fixedly connected to the end of the other end of the first external thread section 323, and an opening protrusion is provided thereon, and the opening protrusion is the second external contact 322 for abutting against the second internal contact 312, so as to realize the limiting of the external linkage member 31 sliding to the lower side.

[0064] In order to realize the threaded connection between the outer linkage member 31 and the inner linkage member 32 and realize the relative sliding between the outer linkage member 31 and the inner linkage member 32, please combine Figures 1 to 3 As shown, the interior of the outer linkage member 31 is provided with a first internal thread segment 313 threadedly connected to the first external thread segment 323, the total thread length of the first internal thread segment 313 is less than the total length of the first external thread segment 323, and the first internal thread segment 313 slides between the limiting ring 41 and the positioning ring 42. When the first internal thread segment 313 and the first external thread segment 323 are engaged and threadedly connected, the purpose of the threaded connection between the outer linkage member 31 and the inner linkage member 32 can be achieved, and the first internal thread segment 313 moves between the limiting ring 41 and the positioning ring 42. Further, please combine Fig. 9 and Fig.10 As shown, one end of the first internal thread section 313 is the first internal contact 311, and the other end is the second internal contact 312. The first internal thread section 313 can move upward in a positive direction until the first internal contact 311 abuts against the first external contact 321, and the first internal thread section 313 can reverse and move downward until the second internal contact 312 abuts against the second external contact 322.

[0065] Please refer to Figure 4 , Fig. 9 , Fig.10 Combined with Fig.12As shown, a second internal thread segment 51 is provided inside the connecting seat 5, and a second external thread segment 314 which can be screwed to the second internal thread segment 51 is provided on the external linkage member 31, thereby achieving the purpose of threaded connection between the external linkage member 31 and the connecting seat 5. The connecting seat 5 is located directly below the external linkage member 31 and between the axial length difference between the first internal thread segment 313 and the first external thread segment 323. When the external linkage member 31 rotates downward, the second external thread segment 314 can be screwed to the second internal thread segment 51. In order to further ensure that the second external thread segment 314 is screwed to the second internal thread segment 51 during the descent of the external linkage member 31, a center column 52 is provided inside the connecting seat 5, and the interior of the external linkage member 31 is plug-fitted to the center column 52 through a bearing.

[0066] As the most preferred power solution for the shaftless device, but not limited to this preferred solution, specifically combined with Figure 1 and Figure 5 As shown, an automatically disassembling shaftless device also includes a transmission gear 61 and a drive motor 62; the outer linkage member 31 is also provided with a gear portion 315 meshing with the transmission gear 61, and the gear portion 315 is located above the second external threaded section 314. The transmission gear 61 is connected to the driving end of the drive motor 62, and the drive motor 62 provides a power source and transmits the force to the gear portion 315 through the transmission gear 61, so as to achieve the purpose of automatically driving the outer linkage member 31 to rotate, thereby achieving the purpose of automatically disassembling and rotating the shaftless device. In addition to the transmission gear 61 directly meshing with the gear portion 315, other optional schemes can also be that the transmission gear 61 is connected to the gear portion 315 through a transmission belt, which can also achieve the purpose of transmitting the driving force of the drive motor 62 to the outer linkage member 31. In addition, other transmission methods in this field, such as belt transmission methods, are all conventional replacement schemes for this preferred scheme.

[0067] In order to realize that the outer linkage member 31 can automatically pause or stop when the connecting seat 5 slides downward, that is, the shaftless device can automatically pause and stop in time when the driven magnetic body 21 is in the automatic disassembly state, so as to ensure the safety of the shaftless device during use, the inventor provides a preferred solution, which specifically combines Figure 2 , Figure 4 , and combined with Figures 6 to 8As shown, an automatic disassembly shaftless device also includes a switch 7 electrically connected to the drive motor 62, wherein the switch 7 is preferably a limit switch, and a switch ring 316 that can contact 7 is provided on the outer wall of the outer linkage member 31, and the switch ring 316 is located above the second external thread section 314, and the switch 7 is located on one side of the outer linkage member 31. When the second external thread section 314 is screwed to the connecting seat 5 and the switch ring 316 is about to contact the switch 7, the switch 7 will control the drive motor 62 to pause or power off and stop, thereby effectively ensuring the safety of the shaftless device during the automatic disassembly process. In addition to the preferred limit switch in this scheme, the switch 7 can also be an electric time-controlled switch, and an electric time-controlled switch is added to make the outer linkage member 31 automatically pause or stop within a certain period of time of descending and sliding, and the limit switch is to ensure that the switch can still be controlled to pause or stop when the electric time-controlled switch fails, thereby achieving the purpose of double protection of the shaftless device.

[0068] Since both sides of the active magnetic body 22 have magnetic fields, the side of the active magnetic body 22 facing the driven magnetic body 21 plays a role in attracting the driven magnetic body 21, while the side facing the external linkage 31 and the switch 7 will cause magnetic interference to the electronic components such as the switch 7. In order to solve the problem of magnetic interference caused by the magnetic field facing the switch 7, the following specific embodiments are combined: Figure 1 , Figure 2 Combined with Figures 6 to 8 As shown, the inventor disclosed an automatically detachable shaftless device which also includes a shielding member 8, and the shielding member 8 is fixedly connected to the inner linkage member 32, and the active magnetic body 22 is fixedly installed on the top of the shielding member 8, so that the magnetic field at the bottom of the active magnetic body 22 is blocked by the shielding member 8, thereby effectively preventing the magnetic field at the bottom of the active magnetic body 22 from affecting several parts and several electronic components below.

[0069] Example 2

[0070] In order to better apply the automatic detachable shaftless device to shaftless kitchen appliances, and better enable the existing shaftless kitchen appliances to be better disassembled and used, combined with Figure 1 As shown, Figure 1 In order to more clearly show how the shaftless device is assembled on the small kitchen appliance, the overall structure is schematically shown in cross section, and other electronic components and other irrelevant parts in the base 91 are omitted. In the overall structure, the present invention also discloses a small kitchen appliance based on the shaftless device, including a base 91 equipped with a container body 92. The small kitchen appliance based on the shaftless device also includes the shaftless device of the above-mentioned embodiment 1, the shaftless device is installed on the base 91, and the driven magnetic body 21 is placed in the container body 92; the outer side of the driven magnetic body 21 is provided with a functional structure 93 for chopping or stirring.

[0071] In this embodiment, the connecting seat 5 and the driving motor 62 are located in the seat body 91 and are both installed and fixed on the seat body 91. The active magnetic body 22, the external linkage member 31, the internal linkage member 32 and the shielding member 8 are movably raised and lowered between the connecting seat 5 and the top surface of the seat body 91. The driving motor 62 transmits the driving force to the external linkage member 31 through the transmission gear 61. In addition, the driven magnetic body 21 is installed on the functional structure 93. The functional structure 93 can be a shell with a plurality of cutting blades on the outer wall, or a shell with a plurality of stirring rods or stirring parts on the outer wall. The driven magnetic body 21 is installed and fixed on the functional structure 93. When the driven magnetic body 21 rotates with the active magnetic body 22, it will drive the functional structure 93 to chop or stir the food in the container 92.

[0072] In summary, the method of using the kitchen appliance with the automatic detachable shaftless device is as follows:

[0073] Before use, place the functional structure 93 with the driven magnetic body 21 installed inside into the container body 92, start the drive motor 62, drive the external linkage member 31 to rotate forward, and drive the active magnetic body 22 to be lifted so that the active magnetic body 22 is close to the driven magnetic body 21. Then, under the action of magnetic force, the driven magnetic body 21 is automatically fixed to the bottom inside the container body 92.

[0074] When in use, the driving motor 62 is started again to drive the external linkage member 31 to rotate forward, thereby driving the active magnetic body 22 to rotate. Then, the driven magnetic body 21 rotates along with the active magnetic body 22 under the action of magnetic force.

[0075] After use, start the drive motor 62 to reverse the external linkage 31, drive the active magnetic body 22 to descend, and then make the active magnetic body 22 descend away from the driven magnetic body 21, so that the magnetic field acting on the driven magnetic body 21 is weakened until the switch ring 316 on the external linkage 31 touches the switch 7 to cut off the power and stop, then the driven magnetic body 21 is disassembled, and the consumer can directly take the functional structure 93.

[0076] Therefore, in summary, the operator only needs to control the power on and off of the small kitchen appliance based on the shaftless device to start the drive motor 62, so as to quickly and conveniently complete the magnetic attraction or magnetic elimination between the driven magnetic body 21 and the active magnetic body 22, thereby achieving the purpose of facilitating the disassembly and assembly of the functional structure 93. At the end of use, the functional structure 93 can be conveniently taken out for subsequent cleaning, thereby effectively ensuring the hygiene of the small kitchen appliance based on the shaftless device.

[0077] In order to effectively control the temperature of food when cutting meat or stirring food, and thus effectively ensure the quality and taste of food ingredients during the cutting and cooking process, Figure 2As shown, the inventor discloses a small kitchen appliance based on a shaftless device, which also includes a temperature sensing element 1 for detecting the real-time temperature of a container body 92; the temperature sensing element 1 is located on the outside of the active magnetic body 22, and the temperature sensing element 1 is fixedly mounted on the seat 91, and the sensing contact of the temperature sensing element 1 contacts the bottom of the container body 92, thereby realizing real-time detection of the temperature inside the container body 92.

[0078] As another optional solution for installing the temperature sensing element 1 on the base 91, Figure 5 As shown, the temperature sensing element 1 is located at the center of the active magnetic body 22, and the temperature sensing element 1 is fixedly mounted on the seat body 91. Specifically, the center settings of the outer linkage member 31 and the inner linkage member 32 both have a hollow structure, and a through hole is provided on the center column 52 or a through hole is provided on the connecting seat 5 for passing the power cord of the temperature sensing element 1. Then, the temperature sensing element 1 can contact the bottom of the container body 92 to detect the temperature inside the container body 92. The power cord of the temperature sensing element 1 can pass through the outer linkage member 31, the inner linkage member 32 and the center column 52 in sequence and be electrically connected to the control element of the small kitchen appliance.

[0079] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. An automatic disassembly shaftless device, characterized in that: include: A driven magnetic body (21) configured inside the container body (92); An outer linkage member (31) having a first inner contact (311) and a second inner contact (312) built therein; an inner linkage member (32), on which is provided a first outer contact (321) that can abut against the first inner contact (311) and a second outer contact (322) that can abut against the second inner contact (312); the inner linkage member (32) is located below the driven magnetic body (21) and is threadedly connected to the outer linkage member (31) so that the outer linkage member (31) and the inner linkage member (32) can be lifted and slid; an active magnetic body (22) that is magnetically attracted to the driven magnetic body (21) is installed on the inner linkage member (32); A connecting seat (5) threadably connected to the outer linkage member (31), wherein the connecting seat (5) is arranged below the outer linkage member (31); The external linkage member (31) is rotated until the first inner contact (311) abuts against the first outer contact (321), and when the external linkage member (31) is separated from the connecting seat (5), a magnetic field is formed between the driven magnetic body (21) and the active magnetic body (22); The external linkage member (31) is reversed until the second inner contact (312) abuts against the second outer contact (322), and the external linkage member (31) is screwed onto the connection seat (5), and the magnetic field between the driven magnetic body (21) and the active magnetic body (22) is eliminated.

2. The automatic detachable shaftless device according to claim 1, characterized in that: It also includes a limiting ring (41) and a positioning ring (42); The inner linkage member (32) is provided with a first external thread section (323); the limiting ring (41) and the positioning ring (42) are respectively located at two ends of the first external thread section (323) and are both connected to the inner linkage member (32); the portion of the limiting ring (41) protruding from the inner linkage member (32) is the first external contact (321); and the portion of the positioning ring (42) protruding from the second external contact (322).

3. The automatic detachable shaftless device according to claim 2, characterized in that: The outer linkage member (31) is internally provided with a first inner thread section (313) threadedly connected to the first outer thread section (323), and the first inner thread section (313) slides between the limiting ring (41) and the positioning ring (42), and one end of the first inner thread section (313) is the first inner contact (311), and the other end is the second inner contact (312).

4. The automatic detachable shaftless device according to claim 1, characterized in that: A second internal thread section (51) is provided inside the connection seat (5), and a second external thread section (314) which can be threadedly connected to the second internal thread section (51) is provided on the external linkage member (31).

5. The automatic detachable shaftless device according to claim 4, characterized in that: It also includes a transmission gear (61) and a drive motor (62); The outer linkage member (31) is also provided with a gear portion (315) meshing with the transmission gear (61), and the transmission gear (61) is connected to the driving end of the driving motor (62).

6. The automatic detachable shaftless device according to claim 5, characterized in that: It also includes a switch (7) electrically connected to the drive motor (62); a switch ring (316) capable of contacting the switch (7) is provided on the outer side wall of the outer linkage member (31); the switch ring (316) is located above the second external thread section (314); and the switch (7) is located on one side of the outer linkage member (31).

7. The automatic detachable shaftless device according to claim 1, characterized in that: It also comprises a shielding member (8), wherein the shielding member (8) is fixedly connected to the inner linkage member (32), and the active magnetic body (22) is fixedly mounted on the top of the shielding member (8).

8. A small kitchen appliance, comprising a base (91) equipped with a container body (92), characterized in that: It also comprises the shaftless device according to any one of claims 1 to 7, wherein the shaftless device is mounted on the seat body (91), and the driven magnetic body (21) is placed in the container body (92); The outer side of the driven magnetic body (21) is provided with a functional structure (93) for chopping or stirring.

9. A small kitchen appliance according to claim 8, characterized in that: It also includes a temperature sensing element (1) for detecting the real-time temperature of the container body (92); The temperature sensing element (1) is located outside the active magnetic body (22), and the temperature sensing element (1) is fixedly mounted on the base (91).

10. A small kitchen appliance according to claim 9, characterized in that: The temperature sensing element (1) is located at the center of the active magnetic body (22), and the temperature sensing element (1) is fixedly mounted on the base (91).

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