CN114285247A - Automatic-disconnecting shaftless device and small kitchen appliance thereof - Google Patents

Abstract

The invention discloses an automatic connecting and disconnecting shaftless device, which comprises a driven magnetic suction body arranged in a container body; an outer linkage member having a first inner contact and a second inner contact disposed therein; the inner linkage piece is provided with a first outer contact which can be abutted against the first inner contact and a second outer contact which can be magnetically attracted with the second inner contact, the inner linkage piece is in threaded connection with the outer linkage piece, and the inner linkage piece is provided with a driving magnetic attraction body which is magnetically attracted with the driven magnetic attraction body; the invention also discloses a small household appliance for kitchen, which comprises a base body configured with a container body and a shaftless device arranged on the base body, wherein the driven magnetic attraction body is provided with a functional structure for chopping or stirring, so that the sanitation of the small household appliance for kitchen is effectively ensured.

Description

Automatic-disconnecting shaftless device and small kitchen appliance thereof

Technical Field

The invention relates to the field of kitchen appliances, in particular to an automatic detachable shaftless device and a small kitchen appliance thereof.

Background

With the advancement of science and technology, small household electrical appliances for cooking in the stirring industry have been developed in a way of stirring by a traditional transmission shaft, for example, a stirring assembly and a cooking utensil having the same are disclosed in the chinese patent application publication No. CN211722829U published on 10, 23 and 2020, and the patent document discloses the conventional shaftless structure and transmission principle: the driving mechanism is arranged in the appliance base body and drives the stirring assembly to rotate through the magnetic mechanism. Specifically, the stirring base includes a stirring base, which is a shaftless stirring structure. The stirring seat is driven by the magnetic mechanism to rotate so as to drive the stirring blade to rotate. The stirring seat is provided with an inner cavity, and the magnetic mechanism comprises a first magnetic part arranged in the inner cavity and a second magnetic part arranged in the appliance base body. The first magnetic member is driven to rotate under the condition that the second magnetic member rotates.

According to the prior art, under the mutual attraction of the two magnetic parts, the magnetic part at the bottom rotates to drive the magnetic part in the pot to rotate, namely, the indirect motor drives the stirring blade to rotate, so that the shaftless rotary connection between the motor and the pot is realized. After cooking, the stirring blade needs to be taken out of the pot for cleaning, but because attraction among the magnetic parts is large, a user needs to use a force greater than magnetic force to take out the stirring blade, so that the stirring blade is not easy to take out of the pot for cleaning, and the hidden health trouble is not thoroughly left after long-term cleaning.

Disclosure of Invention

In order to overcome at least one defect in the prior art, the invention provides an automatic connecting and disconnecting shaftless device, which realizes the purpose of automatically assembling and separating two magnetic parts, thereby solving the problem that the stirring blade is difficult to take out due to large attraction force between the magnetic parts.

The technical scheme adopted by the invention for solving the problems is as follows:

an automatically disconnect shaftless apparatus comprising:

a driven magnetic attraction body configured inside the container body;

the outer linkage part is internally provided with a first inner contact and a second inner contact, wherein the first inner contact is distributed close to the top end of the outer linkage part, and the second inner contact is distributed below the first inner contact;

the inner linkage piece is positioned below the driven magnetic attraction body and is in threaded connection with the outer linkage piece, when the outer linkage piece and the inner linkage piece rotate relatively, the outer linkage piece and the inner linkage piece are rotated to be converted into relative sliding under the action of threads, further, the outer linkage piece is vertically arranged perpendicular to the bottom of the driven magnetic attraction body or the container body, the outer linkage piece is rotated to enable the outer linkage piece and the inner linkage piece to lift and slide, the inner linkage piece is provided with a driving magnetic attraction body which is magnetically attracted with the driven magnetic attraction body, and the purpose of driving the driving magnetic attraction body to lift and adjust is achieved, namely the purpose of enabling the driving magnetic attraction body to be close to or far away from the driven magnetic attraction body;

the connecting seat can be in threaded connection with the outer linkage piece, the connecting seat is arranged below the outer linkage piece, when the outer linkage piece descends to the connecting seat and continues to rotate, the outer linkage piece is in threaded connection with the connecting seat, and the rotation of the outer linkage piece is converted into lifting sliding on the connecting seat under the action of threads;

by combining the structure, the principle of automatic disassembly and assembly of the shaftless device and the rotation working principle are as follows:

form magnetic field between driven magnetism suction body and the initiative magnetism suction body and include that driven magnetism suction body and initiative magnetism suction body produce the magnetic induction line between the magnetic induction line and when progressively strengthening, be in the automatic installation process between driven magnetism suction body and the initiative magnetism suction body to and when the initiative magnetism suction body utilizes the magnetic induction line to drive driven magnetism suction body to rotate, driven magnetism suction body is in and rotates operating condition, specifically as follows:

the outer linkage piece is rotated until the first inner contact abuts against the first outer contact, and when the outer linkage piece is separated from the connecting seat, the driven magnetic attraction body and the driving magnetic attraction body are in an automatic installation process, namely the driven magnetic attraction body is in an automatic installation process, the outer linkage piece is rotated to enable the outer linkage piece to lift and slide on the connecting seat;

when the first inner contact is abutted against the first outer contact and the outer linkage part is still rotated, the outer linkage part drives the inner linkage part to rotate, the driven magnetic attraction body rotates along with the driving magnetic attraction body under the action of magnetic force, and the driven magnetic attraction body is in a rotating working state;

the outer linkage piece is reversed until the contact butt in the second the outer contact of second, just outer linkage piece spiro union during the connecting seat, be in the automatic process of dismantling between the driven magnetic suction body and the initiative magnetic suction body, also the driven magnetic suction body is in the automatic process of dismantling, reverse outer linkage piece for outer linkage piece and interior linkage piece produce relative rotation, until the outer contact of second inner contact butt second, and when outer linkage piece spiro union was to the connecting seat in, outer linkage piece was for interior linkage piece downward separation, then the driven magnetic suction body was kept away from to the initiative magnetic suction body, makes magnetic force or magnetic field between initiative magnetic suction body and the driven magnetic suction body weaken, and finally, the magnetic induction line between initiative magnetic suction body and the driven magnetic suction body disappears, then the driven magnetic suction body with magnetic field between the initiative magnetic suction body is eliminated.

Therefore, it can be known from the above, utilize the rotation conversion of threaded connection in-process to become the principle of rectilinear sliding ingeniously, and cooperate the interior external screw thread assembly structure between outer linkage and the interior linkage, and the screw thread linkage structure between outer linkage and the connecting seat reaches the distance between lift adjustment initiative magnetic suction body and the driven magnetic suction body, and then adjust the magnetic force size between initiative magnetic suction body and the driven magnetic suction body, thereby realize initiative magnetic suction body and driven magnetic suction body automatic assembly's purpose, simultaneously, use through the cooperation between outer linkage and the interior linkage, still make to drive driven magnetic suction body and rotate, realize shaftless device's the effect of rotation work.

Furthermore, the automatic dismounting shaftless device also comprises a limiting ring and a positioning ring; the inner linkage piece is provided with a first outer thread section, the limiting ring and the positioning ring are respectively positioned at two ends of the first outer thread section and are connected with the inner linkage piece, the part of the limiting ring protruding out of the inner linkage piece is the first outer contact, and the positioning ring protrudes out of the second outer contact. Specifically, the limiting ring is provided with at least one limiting column, the top end part of the inner linkage piece is provided with a limiting end matched with an inner hole of the limiting ring, the inner linkage piece is also provided with a limiting groove corresponding to the at least one limiting column, the limiting ring is fixed on the limiting end in a nested manner, the limiting column is correspondingly inserted in the limiting groove, at the moment, the limiting column can be selectively positioned at the tail end of the first external thread section, and the part of the limiting column protruding out of the limiting groove forms a first external contact used for being abutted against the first internal contact, so that the external linkage piece is limited when sliding to the upper part; the positioning ring is fixedly connected to the tail end of the other end of the first outer thread section, an opening bulge is arranged on the positioning ring, and the opening bulge is a second outer contact used for being abutted to a second inner contact so as to limit the outer linkage part to slide to the lower side.

Furthermore, a first internal thread section in threaded connection with the first external thread section is arranged inside the outer linkage member, the first internal thread section slides between the limiting ring and the positioning ring, one end of the first internal thread section is provided with the first internal contact, and the other end of the first internal thread section is provided with the second internal contact, so that threaded connection between the outer linkage member and the inner linkage member is realized, and the first internal thread section moves between the limiting ring and the positioning ring.

Further, a second internal thread section is arranged inside the connecting seat, a second external thread section capable of being in threaded connection with the second internal thread section is arranged on the external linkage member, so that the purpose of threaded connection between the external linkage member and the connecting seat is achieved, the connecting seat is located under the external linkage member and located between the first internal thread section and the first external thread section in the axial length difference, when the external linkage member rotates downwards, the second external thread section can be in threaded connection with the second internal thread section, in order to further guarantee that the external linkage member descends, the second external thread section is in threaded connection with the second internal thread section, a central column is arranged inside the connecting seat, and the inside of the external linkage member 31 is in plug-in fit with the central column through a bearing.

Furthermore, the automatic disconnecting shaftless device also comprises a transmission gear and a driving motor; the outer linkage is also provided with a gear part meshed with the transmission gear, and the transmission gear is connected to the driving end of the driving motor, so that a power source is provided through the driving motor, and the force is transmitted to the gear part through the transmission gear, the purpose of automatically driving the outer linkage to rotate is achieved, and further the purpose of automatically dismounting and rotating the shaftless device is achieved.

Furthermore, the automatic connecting and disconnecting shaftless device further comprises a switch electrically connected with the driving motor, a switch ring which can be contacted with the switch is arranged on the outer side wall of the outer linkage piece, the switch ring is positioned above the second external thread section, the switch is positioned on one side of the outer linkage piece, when the second external thread section is in threaded connection with the connecting seat and the switch ring is in contact with the switch, the switch controls the driving motor to stop rotating or power-off, and therefore the safety of the shaftless device in the automatic connecting and disconnecting process is effectively guaranteed.

Furthermore, the automatic connecting and disconnecting shaftless device further comprises a shielding piece, the shielding piece is fixedly connected to the inner linkage piece, the active magnetic attraction body is fixedly installed at the top of the shielding piece, and then the magnetic field at the bottom of the active magnetic attraction body is separated by the shielding piece, so that the influence of the magnetic field at the bottom of the active magnetic attraction body on a plurality of parts and a plurality of electronic elements below is effectively avoided.

The invention also discloses a small kitchen appliance based on the shaftless device, which comprises a base body configured with a container body, and the small kitchen appliance based on the shaftless device also comprises the shaftless device according to any one of the claims, wherein the shaftless device is arranged on the base body, and the driven magnetic attraction body is placed in the container body; the outer side of the driven magnetic suction body is provided with a functional structure for chopping or stirring, in particular, the driven magnetic suction body is arranged on the functional structure, the functional structure can be a shell with a plurality of cutting cutter bodies on the outer side wall, or a shell with a plurality of stirring rods or stirring parts on the outer side wall, the driven magnetic attraction body is installed and fixed on the functional structure, when the driven magnetic attraction body rotates along with the driving magnetic attraction body, the driven magnetic attraction body drives the functional structure to cut up or stir the food in the accommodating body, therefore, the operator only needs to control the small kitchen appliance based on the shaftless device to be powered on and off, so as to start the driving motor, the magnetic attraction or the magnetic elimination between the driven magnetic attraction body and the driving magnetic attraction body can be quickly and conveniently completed, and then realized the purpose of the functional structure of being convenient for dismouting to take, then when using the end, the functional structure of taking that can be convenient carries out subsequent cleanness, and then realizes effectively guaranteeing the health of the little household electrical appliances for kitchen of shaftless device.

Furthermore, the small kitchen appliance based on the shaftless device also comprises a temperature sensing element for detecting the real-time temperature of the container body; the temperature-sensing element is located the outside of initiative magnetism body, just temperature-sensing element fixed mounting be in on the pedestal, therefore realize cutting meat or stirring cooking food in the container is internal through the temperature-sensing element, carry out real-time detection to the real-time temperature of food cutting cooking in-process, then effectual temperature of controlling food cutting cooking in-process, and then effectual assurance food material is in cutting cooking process's quality and taste.

Further, the temperature sensing element is located at the central position of the active magnetic attraction body, the temperature sensing element is fixedly mounted on the base body, specifically, hollow structures are arranged at the centers of the outer linkage body and the inner linkage body, a through hole capable of penetrating through a power line of the temperature sensing element is formed in the central column or the connecting seat, the temperature sensing element can contact the bottom of the container body to detect the temperature in the container body, and the power line of the temperature sensing element can sequentially penetrate through the outer linkage body, the inner linkage body and the central column and is electrically connected with a control element of the kitchen small household appliance.

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

1) the lifting motion of the driving magnetic attraction body on the inner linkage piece is realized through the inner and outer screw connection matching between the outer linkage piece and the inner linkage piece and the screw connection matching between the outer linkage piece and the connecting seat, so that the magnetic field or the magnetic force between the driving magnetic attraction body and the driven magnetic attraction body is adjusted and changed, and the purpose of facilitating the disassembly and the assembly of the driven magnetic attraction body is further achieved by controlling the magnetic field or the magnetic force between the driving magnetic attraction body and the driven magnetic attraction body;

2) the first inner contact of the outer linkage part is abutted to the first outer contact of the inner linkage part, so that the purpose that the inner linkage part is driven by the rotation of the outer linkage part and further the driven magnetic attraction body on the inner linkage part is driven to rotate by the rotation of the driving magnetic attraction body is achieved, meanwhile, the sliding limit between the outer linkage part and the inner linkage part is also achieved, and the inner linkage part is prevented from being separated from the outer linkage part when sliding and rising in the outer linkage part;

3) the second inner contact of the outer linkage piece is abutted to the second outer contact of the inner linkage piece, so that the sliding limit between the outer linkage piece and the inner linkage piece is realized, the inner linkage piece is prevented from being separated from the outer linkage piece when sliding and descending in the outer linkage piece, and meanwhile, the effect of effectively drawing the inner linkage piece to move downwards is realized when the outer linkage piece slides downwards;

4) through the spiro union cooperation between outer linkage and the connecting seat, make outer linkage continuously rotate, the driven magnetism is inhaled the body and is in the rotation during operation, be in the state of contactless between outer linkage and the connecting seat, and then caused the friction and collision to the connecting seat when having avoided outer linkage to rotate, and then avoided causing the damage to the connecting seat, and when outer linkage reverses, but utilize the spiro union cooperation between outer linkage and the interior linkage to make outer linkage spiro union again to the connecting seat, and then utilize the spiro union cooperation of outer linkage and connecting seat to pull outer linkage and interior linkage decline and slide.

Drawings

FIG. 1 is an overall structure diagram of a small kitchen appliance based on a shaftless device according to the present invention;

FIG. 2 is a structural view of a shaftless apparatus in embodiment 1 of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 2 in the direction B;

FIG. 5 is a structural view of a shaftless apparatus in embodiment 2 of the present invention;

FIG. 6 is a schematic view of the shaftless apparatus in a rotational operating state;

FIG. 7 is a schematic view of the shaftless apparatus in either an automatically installed or automatically removed position;

FIG. 8 is a schematic view of a switch ring touch switch during automatic disassembly of the shaftless apparatus;

FIG. 9 is a first block diagram of the outer linkage in the shaftless assembly of the present invention;

FIG. 10 is a second block diagram of the outer linkage in the shaftless assembly of the present invention;

FIG. 11 is a schematic structural view of the inner linkage in the shaftless assembly of the present invention;

FIG. 12 is a schematic view of the connecting base of the shaftless apparatus of the present invention;

FIG. 13 is a schematic view of a stop collar in the shaftless assembly of the present invention;

fig. 14 is a partially enlarged view in the direction C of fig. 2.

Wherein the reference numerals have the following meanings:

1. a temperature sensing element; 21. a driven magnetic attraction body; 22. an active magnetic attraction body; 31. an outer linkage; 311. a first inner contact; 312. a second inner contact; 313. a first internal thread segment; 314. a second outer thread section; 315. a gear portion; 316. a switch ring; 32. an inner linkage; 321. a first outer contact; 322. a second outer contact; 323. a first external thread section; 324. a limiting end; 325. a limiting groove; 41. a limiting ring; 411. a limiting column; 42. a positioning ring; 5. a connecting seat; 51. a second internal thread segment; 52. a central column; 61. a transmission gear; 62. a drive motor; 7. a switch; 8. a shield; 91. a base body; 92. a container body; 93. and (4) functional structure.

Detailed Description

For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

Referring to fig. 1 to 4 in combination with fig. 9 to 12, wherein fig. 2 is a sectional view of a shaftless apparatus for clearly showing the connection relationship of various components in the shaftless apparatus, and fig. 2 illustrates the shaftless apparatus according to the present invention, the present invention discloses an automatic disconnecting shaftless apparatus, including:

a driven magnet 21 disposed inside the container body 92;

the outer linkage member 31 is internally provided with a first inner contact 311 and a second inner contact 312, wherein the first inner contact 311 is distributed near the top end of the outer linkage member 31, and the second inner contact 312 is distributed below the first inner contact 311;

an inner linkage member 32, which is provided with a first outer contact 321 capable of abutting against the first inner contact 311 and a second outer contact 322 capable of abutting against the second inner contact 312, the inner linkage member 32 is located below the driven magnetic attraction body 21 and is connected with the outer linkage member 31 by screw thread, when the outer linkage member 31 and the inner linkage member 32 rotate relatively, the rotation between the outer linkage member 31 and the inner linkage member 32 is converted into relative sliding by the action of the screw threads, further, the outer linkage member 31 is vertically arranged perpendicular to the bottom of the driven magnetic attraction body 21 or the container body 92, the outer linkage member 31 is rotated, so that the outer linkage member 31 and the inner linkage member 32 can move up and down, the inner linkage member 32 is installed with a driving magnetic attraction body 22 magnetically attracted with the driven magnetic attraction body 21, the driving magnetic attraction body 22 is driven to lift and adjust, that is, the driving magnetic attraction body 22 is close to or far away from the driven magnetic attraction body 21;

the connecting seat 5 can be in threaded connection with the external linkage piece 31, the connecting seat 5 is arranged below the external linkage piece 31, when the external linkage piece 31 descends to the connecting seat 5 and continues to rotate, the external linkage piece 31 is in threaded connection with the connecting seat 5, and the rotation of the external linkage piece 31 is converted into lifting sliding on the connecting seat 5 under the action of threads;

in this embodiment, the first inner contact 311 and the second inner contact 312 are respectively configured to abut against the corresponding first outer contact 321 and the corresponding second outer contact 322 in the ascending or descending 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, because the inner linkage member 32 is blocked by the first inner contact 311 or the second inner contact 312, the inner linkage member 32 cannot slide relatively any more, when the inner linkage member 32 slides and ascends relative to the outer linkage member 31, the inner linkage member 32 will ascend to a certain position to perform a limit, and similarly, when the inner linkage member 32 slides and descends relative to the outer linkage member 31, the inner linkage member 32 will descend to a certain position to perform a limit, thereby preventing the inner linkage member 32 from separating from the outer linkage member 31 when sliding and ascending or sliding and descending inside the outer linkage member 31, and effectively passing through the interaction between the outer linkage member 31 and the inner linkage member 32, the outer linkage piece 31 drives the inner linkage piece 32 to synchronously rotate or drives the inner linkage piece 32 to slide together, meanwhile, the inner linkage piece 32 and the outer linkage piece 31 relatively rotate to slide and rise, the inner linkage piece 32 also synchronously realizes that the inner linkage piece 32 is assembled inside the outer linkage piece 31, namely, the assembly effect between the inner linkage piece 32 and the outer linkage piece 31 is realized, the inner linkage piece 32 and the outer linkage piece 31 relatively rotate to slide and fall, the inner linkage piece 32 also synchronously realizes that the inner linkage piece 32 is detached inside the outer linkage piece 31, namely, the disassembly effect of the inner linkage piece 32 and the outer linkage piece 31 is realized.

Synthesize above-mentioned structure, this shaftless device's automatic dismouting's principle and rotation theory of operation lie in:

wherein, the magnetic field formed between the driven magnetic attraction body 21 and the driving magnetic attraction body 22 includes that when magnetic induction lines are generated between the driven magnetic attraction body 21 and the driving magnetic attraction body 22 and are gradually enhanced, the driven magnetic attraction body 21 and the driving magnetic attraction body 22 are in an automatic installation process, and when the driving magnetic attraction body 22 drives the driven magnetic attraction body 21 to rotate by using the magnetic induction lines, the driven magnetic attraction body 21 is in a rotation working state;

specifically, as shown in fig. 6, the outer linkage member 31 is rotated to make the outer linkage member 31 lift and slide on the connecting seat 5, and synchronously, the outer linkage member 31 and the inner linkage member 32 rotate relatively to make the inner linkage member 32 assemble inside 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 driving magnetic attraction member 22 is close to the driven magnetic attraction member 21 to generate and enhance the magnetic force or magnetic field between the driven magnetic attraction member 21 and the driving magnetic attraction member 22, and then the driven magnetic attraction member and the driving magnetic attraction member are in an automatic installation process, that is, the driven magnetic attraction member is in an automatic installation process;

specifically, as shown in fig. 7, when the first inner contact 311 abuts against the first outer contact 321 and still rotates the outer linkage 31, the outer linkage 31 will drive the inner linkage 32 to rotate, and under the action of the magnetic force, the driven magnetic attraction body 21 rotates along with the driving magnetic attraction body 22, and the driven magnetic attraction body 21 is in a rotating working state;

as shown in fig. 7 in particular, reversing the outer linkage member 31, causes the outer linkage member 31 and the inner linkage member 32 to rotate relative to each other, and 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 the second outer contact 322, when the external linkage member 31 is screwed with the connecting seat 5, the external linkage member 31 slides downward on the connecting seat 5 to synchronously drive the internal linkage member 32 to slide downward, so that the driven magnetic attraction body 21 and the driving magnetic attraction body 22 are automatically disassembled, i.e. the driven magnetic attraction body 21 is automatically disassembled, the driving magnetic attraction body 22 is far away from the driven magnetic attraction body 21 to reduce the magnetic force or magnetic field between the driven magnetic attraction body 21 and the driving magnetic attraction body 22, and finally, the magnetic induction lines between the driving magnetic attraction body 22 and the driven magnetic attraction body 21 disappear, and the magnetic field between the driven magnetic attraction body 21 and the driving magnetic attraction body 22 is eliminated.

Therefore, it can be known from the above description that, the principle that the rotation in the process of the threaded connection is transformed into the linear sliding is ingeniously utilized, and the distance between the driving magnetic attraction body 22 and the driven magnetic attraction body 21 is adjusted in a lifting manner by matching the internal and external thread assembly structure between the external linkage member 31 and the internal linkage member 32 and the thread engagement structure between the external linkage member 31 and the connecting seat 5, so as to further adjust the magnetic force between the driving magnetic attraction body 22 and the driven magnetic attraction body 21, thereby achieving the purpose of automatically assembling the driving magnetic attraction body 22 and the driven magnetic attraction body 21, and meanwhile, by matching the external linkage member 31 and the internal linkage member 32, the driven magnetic attraction body 21 is driven to rotate, thereby achieving the effect of the rotary operation of the shaftless device.

Referring to fig. 4, 11, 13 and 14, an automatic connecting and disconnecting shaftless device further includes a position-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 positioned at two ends of the first external thread section 323 and are connected with the inner linkage member 32, the part of the limiting ring 41 protruding out of the inner linkage member 32 is a first external contact 321, the positioning ring 42 protrudes out of the second external contact 322, specifically, the limiting ring 41 is provided with at least one limiting column 411, the top end part of the inner linkage member 32 is provided with a limiting end 324 matched with the inner hole of the limiting ring 41, and the inner linkage member 32 is further provided with a limiting groove 325 corresponding to at least one limiting post 411, the limiting ring 41 is embedded and fixed on the limiting end 324, the limiting column 411 is correspondingly inserted into the limiting groove 325, at this time, the limiting column 411 can be selectively positioned at the tail end of the first external thread section 323, and the part of the limiting column 411 protruding out of the limiting groove 325 forms a first external contact 321 for abutting against the first internal contact 311, so as to limit the sliding of the external linkage member 31 to the upper part; the positioning ring 42 is fixedly connected to the end of the other end of the first external thread section 323, and is provided with an opening protrusion, which is a second external contact 322 for abutting against the second internal contact 312, so as to limit the sliding of the external linkage member 31 to the lower side.

In order to realize the threaded connection between the outer link 31 and the inner link 32 and the relative sliding between the outer link 31 and the inner link 32, please refer to fig. 1 to 3, the outer link 31 is internally provided with a first internal thread section 313 screwed with the first external thread section 323, the total thread length of the first internal thread section 313 is smaller than the total thread length of the first external thread section 323, and the first internal thread section 313 slides between the spacing ring 41 and the positioning ring 42, when the first internal thread section 313 is engaged and screwed with the first external thread section 323, the threaded connection between the outer link 31 and the inner link 32 can be realized, and the first internal thread section 313 moves between the spacing ring 41 and the positioning ring 42, further, as shown in fig. 9 and 10, one end of the first internal thread section 313 is a first internal contact 311, the other end is a second internal contact 312, the first internal thread section 313 can move upwards until the first internal contact 311 abuts against the first external contact 321, the first internal thread segment 313 may be reversed to move the second internal contact 312 against the second external contact 322.

Referring to fig. 4, 9, 10 and 12 in combination, a second internal thread section 51 is disposed inside the connecting seat 5, and a second external thread section 314 capable of being screwed with the second internal thread section 51 is disposed on the external linkage member 31, so as to achieve the purpose of threaded connection between the external linkage member 31 and the connecting seat 5, the connecting seat 5 is located right below the external linkage member 31 and between the axial length difference between the first internal thread section 313 and the first external thread section 323, so that when the external linkage member 31 rotates downward, the second external thread section 314 can be screwed with the second internal thread section 51, in order to further ensure that the external linkage member 31 descends, the second external thread section 314 is screwed with the second internal thread section 51, a central post 52 is disposed inside the connecting seat 5, and the inside of the external linkage member 31 is inserted and matched with the central post 52 through a bearing.

As the most preferable power scheme of the shaftless device, but not limited to the preferable scheme, specifically referring to fig. 1 and 5, an automatic disconnecting shaftless device further comprises a transmission gear 61 and a driving motor 62; the outer linkage piece 31 is further provided with a gear portion 315 meshed with the transmission gear 61, the gear portion 315 is located above the second outer thread portion 314, the transmission gear 61 is connected to the driving end of the driving motor 62, a power source is provided through the driving motor 62, and force is transmitted to the gear portion 315 through the transmission gear 61, so that the purpose of automatically driving the outer linkage piece 31 to rotate is achieved, and further the purpose of automatically dismounting and rotating the shaftless device is achieved.

In order to realize that the external linkage member 31 can automatically pause or stop when the connecting seat 5 descends and slides, that is, the shaftless device can automatically pause and stop at a proper time when the driven magnetic attraction body 21 is in an automatically detached state, so as to ensure the safety of the shaftless device in the using process, the inventor provides a preferable scheme, specifically referring to fig. 2 and 4 and fig. 6 to 8, the automatically detached shaftless device further comprises a switch 7 electrically connected with the driving motor 62, wherein the switch 7 is preferably a limit switch, a switch ring 316 capable of contacting with the switch 7 is arranged on the outer side wall of the external linkage member 31, the switch ring 316 is positioned above the second external thread section 314, the switch 7 is positioned on one side of the external linkage member 31, when the second external thread section 314 is screwed to the connecting seat 5 and the switch ring 316 is to contact with the switch 7, the switch 7 controls the driving motor 62 to pause or stop when power is cut off, therefore, the safety of the shaftless device in the automatic dismounting process is effectively guaranteed, besides the preferred limit switch in the scheme, the switch 7 can be an electric power time control switch, the electric power time control switch is additionally arranged, the outer linkage part 31 is enabled to automatically pause or stop within a certain time of descending and sliding, the limit switch is the limit switch, the switch can still be controlled to pause or stop when the electric power time control switch fails, and the purpose of double protection of the shaftless device is achieved.

Since both sides of the active magnetic element 22 have magnetic fields, one side of the active magnetic element 22 facing the driven magnetic element 21 plays a role in attracting the driven magnetic element 21, and one side of the active magnetic element 22 facing the outer linkage 31 and the switch 7 can magnetically interfere with electronic components such as the switch 7, so as to solve the problem of magnetic interference generated by the magnetic field facing the switch 7, specifically referring to fig. 1 and 2 in combination with fig. 6 to 8, the inventor discloses an automatically detachable shaftless device further comprising a shielding element 8, wherein the shielding element 8 is fixedly connected to the inner linkage 32, the active magnetic element 22 is fixedly installed at the top of the shielding element 8, and the magnetic field at the bottom of the active magnetic element 22 is isolated by the shielding element 8, thereby effectively avoiding the influence of the magnetic field at the bottom of the active magnetic element 22 on a plurality of components and a plurality of electronic components below.

Example 2

In order to better apply the automatically detachable shaft-free device to a small kitchen appliance without shaft, and to better enable the small kitchen appliance without shaft to be detached and used better, fig. 1 is combined, wherein fig. 1 shows how the shaft-free device is assembled to the small kitchen appliance more clearly, the whole structure is schematically shown in cross section, and other electronic elements and other irrelevant parts in the base body 91 are omitted. The invention also discloses a small kitchen appliance based on a shaftless device in the integral structure, which comprises a base body 91 provided with a container body 92, and the small kitchen appliance based on the shaftless device also comprises the shaftless device in the embodiment 1, wherein the shaftless device is arranged on the base body 91, and the driven magnetic attraction body 21 is arranged in the container body 92; the outer side of the driven magnetic attraction body 21 is provided with a functional structure 93 for chopping or stirring.

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 attraction body 22, the outer linkage member 31, the inner linkage member 32 and the shielding member 8 are movably lifted between the upper top surfaces of the connecting seat 5 and the seat body 91, and the driving motor 62 transmits the driving force to the outer linkage member 31 through the transmission gear 61; in addition, the driven magnetic attraction body 21 is installed on the functional structure 93, the functional structure 93 can be a casing provided with a plurality of cutting knife bodies on the outer side wall, and can also be a casing provided with a plurality of stirring rods or stirring parts on the outer side wall, the driven magnetic attraction body 21 is installed and fixed on the functional structure 93, and when the driven magnetic attraction body 21 rotates along with the driving magnetic attraction body 22, the driven magnetic attraction body drives the functional structure 93 to chop or stir the food in the containing body 92.

In summary, the use method of the small kitchen appliance with the automatically detachable shaftless device comprises the following steps:

before using, place the functional structure 93 of internally mounted driven magnetism body 21 in the container body 92, start driving motor 62, drive outer linkage 31 corotation, drive the lifting of initiative magnetism body 22 so that initiative magnetism body 22 is close to driven magnetism body 21, then driven magnetism body 21 is under the effect of magnetic force, and the automatic bottom that pastes tightly of fixed in the container body 92 of driven magnetism body 21.

When the magnetic attraction type magnetic switch is used, the driving motor 62 is started again to drive the outer linkage piece 31 to rotate forwardly so as to drive the driving magnetic attraction body 22 to rotate, and the driven magnetic attraction body 21 rotates along with the driving magnetic attraction body 22 under the action of magnetic force.

After the use, start driving motor 62 and make outer linkage 31 reversal, drive initiative magnetism body 22 and descend and make initiative magnetism body 22 descend and keep away from driven magnetism body 21, then the magnetic field that is used in on the driven magnetism body 21 weakens, and the switch ring 316 on outer linkage 31 touches switch 7 outage and stops, then the dismantlement of driven magnetism body 21 is accomplished, and the consumer can directly take functional structure 93.

Therefore, by integrating the above, the operator only needs to control the power on and off of the small kitchen appliance based on the shaftless device, so as to start the driving motor 62, and the magnetic attraction or the magnetic elimination between the driven magnetic attraction body 21 and the driving magnetic attraction body 22 can be quickly and conveniently completed, so that the purpose of conveniently dismounting and taking the functional structure 93 is realized, when the use is finished, the convenient taking functional structure 93 can be conveniently used for subsequent cleaning, and the sanitation of the small kitchen appliance based on the shaftless device can be effectively guaranteed.

In order to effectively control the temperature of food when cutting meat or stirring food, and further effectively ensure the quality and taste of food material during the cutting process, the inventor discloses a small kitchen appliance based on a shaftless device, which further comprises a temperature sensing element 1 for detecting the real-time temperature of a container body 92, as shown in fig. 2; the temperature sensing element 1 is located outside the active magnetic attraction body 22, and the temperature sensing element 1 is fixedly installed on the seat body 91, so that the sensing contact of the temperature sensing element 1 contacts the bottom of the container body 92, and the real-time detection of the temperature in the container body 92 is realized.

As another alternative to mounting the temperature sensing element 1 on the base 91, referring to fig. 5, the temperature sensing element 1 is located at the center of the active magnetic element 22, and the temperature sensing element 1 is fixedly mounted on the base 91, specifically, the centers of the outer linkage 31 and the inner linkage 32 are both provided with hollow structures, the center post 52 is provided with a through hole or the connecting base 5 is provided with a through hole through which a power cord of the temperature sensing element 1 can pass, so that the temperature sensing element 1 can contact the bottom of the container 92 to detect the temperature inside the container 92, and the power cord of the temperature sensing element 1 can sequentially pass through the outer linkage 31, the inner linkage 32 and the center post 52 and is electrically connected to the control element of the small household electrical appliance for kitchen use.

The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims (10)

1. An automatically disconnect shaftless apparatus, comprising:

a driven magnetic body (21) arranged inside the container body (92);

an outer link (31) in which a first inner contact (311) and a second inner contact (312) are disposed;

the inner linkage piece (32) is provided with a first outer contact (321) which can be abutted against the first inner contact (311) and a second outer contact (322) which can be abutted against the second inner contact (312), the inner linkage piece (32) is positioned below the driven magnetic attraction body (21) and is in threaded connection with the outer linkage piece (31) so that the outer linkage piece (31) and the inner linkage piece (32) can lift and slide, and the inner linkage piece (32) is provided with a driving magnetic attraction body (22) which is magnetically attracted with the driven magnetic attraction body (21);

a connecting base (5) which can be screwed with the outer linkage piece (31), wherein the connecting base (5) is arranged below the outer linkage piece (31);

rotating the outer linkage piece (31) until the first inner contact (311) abuts against the first outer contact (321), and forming a magnetic field between the driven magnetic attraction body (21) and the driving magnetic attraction body (22) when the outer linkage piece (31) is separated from the connecting seat (5);

and reversing the outer linkage member (31) until the second inner contact (312) abuts against the second outer contact (322), and eliminating the magnetic field between the driven magnetic attraction body (21) and the driving magnetic attraction body (22) when the outer linkage member (31) is in threaded connection with the connecting seat (5).

2. An automatically disconnect shaftless apparatus according to claim 1, wherein:

the device also comprises a limiting ring (41) and a positioning ring (42);

the inner linkage piece (32) is provided with a first external thread section (323), the limiting ring (41) and the positioning ring (42) are respectively positioned at two ends of the first external thread section (323) and are connected with the inner linkage piece (32), the part of the limiting ring (41) protruding out of the inner linkage piece (32) is the first outer contact (321), and the positioning ring (42) protrudes out of the second outer contact (322).

3. The automatic connecting and disconnecting shaftless device according to claim 2, wherein the inner portion of the outer linkage member (31) is provided with a first internal thread section (313) threaded with the first external thread section (323), and the first internal thread section (313) slides between the position-limiting ring (41) and the positioning ring (42), and one end of the first internal thread section (313) is provided with the first internal contact (311) and the other end is provided with the second internal contact (312).

4. The automatic connecting and disconnecting shaftless device according to claim 1, wherein said connecting base (5) is provided with a second internal thread section (51) therein, and said external linkage member (31) is provided with a second external thread section (314) threadably engaged with said second internal thread section (51).

5. An automatically disconnect shaftless apparatus according to claim 4,

the device also comprises a transmission gear (61) and a driving motor (62);

and a gear part (315) meshed with the transmission gear (61) is further arranged on the outer linkage piece (31), and the transmission gear (61) is connected to the driving end of the driving motor (62).

6. The automatic connecting and disconnecting shaftless device according to claim 5, further comprising a switch (7) electrically connected with said driving motor (62), wherein a switch ring (316) capable of contacting with said switch (7) is provided on an outer side wall of said outer linkage member (31), said switch ring (316) is located above said second outer thread section (314), and said switch (7) is located on one side of said outer linkage member (31).

7. An automatically disconnecting shaftless apparatus according to claim 1, further comprising a shield member (8), wherein said shield member (8) is fixedly connected to said inner link member (32), and said active magnetic attraction member (22) is fixedly mounted on top of said shield member (8).

8. A small household appliance for kitchen use, comprising a base (91) provided with a container body (92), characterized by further comprising a shaftless device according to any one of claims 1 to 7, said shaftless device being mounted on said base (91), said driven magnetic attraction body (21) being placed inside said container body (92);

and a functional structure (93) for chopping or stirring is arranged on the outer side of the driven magnetic suction body (21).

9. A small kitchen appliance according to claim 8, characterized in that:

the temperature sensing device also comprises a temperature sensing element (1) for detecting the real-time temperature of the container body (92);

the temperature sensing element (1) is located on the outer side of the active magnetic attraction body (22), and the temperature sensing element (1) is fixedly installed on the seat body (91).

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

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