CN115474858A - Transmission system and food processor - Google Patents

Abstract

The application relates to the technical field of electromechanics and discloses a transmission system and a food processor. The transmission system comprises a driving piece, a driven piece, a first transmission assembly and a second transmission assembly. The motor of the food processer drives the driving part to rotate along the first direction or the second direction. The driving piece can drive the stirrer to rotate. At the beginning stage of the rotation of the driving part along the first direction, the driving part drives the driven part to rotate through the first transmission component, so that the driven part drives the heating component to descend. At the beginning stage of the rotation of the driving part along the second direction, the driving part drives the driven part to rotate through the second transmission component, so that the driven part drives the heating component to ascend. This application realizes under the prerequisite that does not increase drive arrangement that agitator stirring and heating element go up and down simultaneously.

Description

Transmission system and food processor

Technical Field

The application relates to the technical field of electromechanics, in particular to a transmission system and a food processor.

Background

Present cooking machine includes container and heating element, and heating element is fixed in the container, for the container heating. The cooking machine also comprises a motor and a stirrer, the stirrer is positioned in the container, and the motor drives the stirrer to rotate so as to stir the cooking materials.

Disclosure of Invention

In view of this, the present application provides a transmission system and a food processor, which can simultaneously achieve the stirring and the lifting of the heating component without increasing a driving device.

In order to solve the technical problem, the application adopts a technical scheme that: the transmission system comprises a driving part and a driven part; the first transmission assembly is only connected with the driving part and the driven part in a transmission manner in the first direction, can transmit between the driving part and the driven part in the initial stage of the action of the driving part, and does not transmit in the subsequent stage of the action of the driving part; the second transmission component is only connected with the driving part and the driven part in a second direction in a transmission manner, can transmit between the driving part and the driven part at the initial stage of the action of the driving part, and does not transmit at the subsequent stage of the action of the driving part; the first direction is opposite to the second direction, and when one of the first transmission assembly and the second transmission assembly is in a transmission state, the other one of the first transmission assembly and the second transmission assembly is in a non-transmission state.

In some embodiments of the present application, the driving member is a driving shaft and the driven member is a driven shaft; the first transmission assembly includes: the first gear is rotatably sleeved on the driving shaft in one direction only through the first one-way rotating piece, the second gear is fixedly sleeved on the driven shaft, or the first gear is fixedly sleeved on the driving shaft, the second gear is rotatably sleeved on the driven shaft in one direction only through the first one-way rotating piece, the first gear and the second gear are meshed with each other, and the second gear is provided with a toothless area; the second transmission assembly includes: the third gear is rotatably sleeved on the driving shaft in one direction only through the second one-way rotating piece, the fourth gear is fixedly sleeved on the driven shaft, or the third gear is fixedly sleeved on the driving shaft, the fourth gear is rotatably sleeved on the driven shaft in one direction only through the second one-way rotating piece, the third gear and the fourth gear are meshed with each other, and the fourth gear is provided with a toothless area; when the driving shaft rotates, one of the first unidirectional rotating part and the second unidirectional rotating part is in a rotating connection state, and the other one is in a fixed connection state.

In some embodiments of the present application, the first one-way rotating member and/or the second one-way rotating member is a one-way bearing.

In some embodiments of the present application, the toothed regions of the second and fourth gears each extend in a circumferential direction of the driven shaft, the first end of the toothed region of the second gear exceeds the same end of the toothed region of the fourth gear, and the second end of the toothed region of the second gear is less than the same end of the toothed region of the fourth gear.

For solving above-mentioned technical problem, this application still provides a cooking machine, includes: the container is used for containing cooking materials; a heating assembly capable of being close to or far from the container and heating the container; the stirrer is rotatably arranged in the container; in any of the transmission systems, the driving part in the transmission system is used for being connected with the stirrer so as to drive the stirrer to rotate; a driven part in the transmission system is used for driving the heating component to approach or separate from the container; the driver is used for driving the driving piece to actuate.

In some embodiments of the present application, the food processor comprises: the fifth gear is fixedly sleeved on the driven piece; the rotating part can rotate by taking the direction that the heating assembly is close to or far away from the container as the rotating shaft direction, the rotating part is meshed with the fifth gear, and the rotating motion of the rotating part can be converted into the linear motion of the heating assembly along the rotating shaft direction.

In some embodiments of the present application, the food processor comprises: the upper side of the lower gear box cover is provided with an open first concave part, and the lower side of the lower gear box cover is provided with an open second concave part; the upper gear box cover is covered on the lower gear box cover and is detachably connected with the lower gear box cover; the transmission system is arranged in the first concave part, the driving part and the driven part are respectively and rotatably connected to the upper gear box cover and the lower gear box cover, the rotating part is located between the lower gear box cover and the upper gear box cover and is arranged outside the first concave part in a surrounding mode, and at least part of the driver is contained in the second concave part and is fixedly connected with the lower gear box cover.

In some embodiments of the present application, the food processor comprises: a first guide part arranged on the rotating member; and the second guide part is arranged on the lower gear box cover or the upper gear box cover and is in sliding fit with the first guide part around the rotating shaft.

In some embodiments of the present application, the first guiding portion is a column extending along the rotation axis, and the second guiding portion is a groove extending around the rotation axis, and the column is at least partially inserted into the groove.

In some embodiments of the present application, the food processor comprises: the first limiting part is arranged in the groove and is used for abutting against the column body so as to limit the rotation of the rotating part.

In some embodiments of the present application, the food processor comprises: the second limiting part is arranged on the driven part; and the third limiting part is arranged on the lower gear box cover or the upper gear box cover and is used for abutting against the second limiting part to limit the rotation of the driven part.

The beneficial effect of this application is: different from the prior art, the application provides a transmission system, including driving piece, follower, first transmission assembly and second transmission assembly. The first transmission assembly is only connected with the driving part and the driven part in a transmission manner in the first direction, can transmit between the driving part and the driven part in the initial stage of the action of the driving part, and does not transmit in the subsequent stage of the action of the driving part. The second transmission component is only connected with the driving part and the driven part in a second direction in a transmission manner, can transmit between the driving part and the driven part at the initial stage of the action of the driving part, and does not transmit at the subsequent stage of the action of the driving part. The first direction is opposite to the second direction, and when one of the first transmission assembly and the second transmission assembly is in a transmission state, the other one is in a non-transmission state. The motor of the food processer drives the driving part to rotate along the first direction or the second direction. The driving piece can drive the stirrer to rotate. At the beginning stage of the rotation of the driving part along the first direction, the driving part drives the driven part to rotate through the first transmission component, so that the driven part drives the heating component to descend. At the beginning stage of the rotation of the driving part along the second direction, the driving part drives the driven part to rotate through the second transmission component, so that the driven part drives the heating component to ascend. This application realizes agitator stirring and heating element lift simultaneously under the prerequisite that does not increase drive arrangement.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic three-dimensional structure diagram of an embodiment of a food processor of the present application;

fig. 2 is an exploded view of the food processor shown in fig. 1;

FIG. 3 is a cross-sectional view of the cup body of the food processor shown in FIG. 1;

fig. 4 is a schematic three-dimensional structure diagram of the cup body in the food processor shown in fig. 1;

FIG. 5 is a schematic three-dimensional structure of the bottom of the cup body in the food processor shown in FIG. 1;

fig. 6 is a cross-sectional view of the food processor shown in fig. 1;

FIG. 7 isbase:Sub>A sectional view A-A of FIG. 6;

fig. 8 is a schematic three-dimensional structure diagram of a heating assembly in the food processor shown in fig. 1;

fig. 9 is a schematic three-dimensional structure diagram of the host machine in the food processor shown in fig. 1;

FIG. 10 is a cross-sectional view of the mainframe of FIG. 9;

FIG. 11 is an exploded view of a perspective of the host computer shown in FIG. 9;

FIG. 12 is an exploded view of the host computer of FIG. 9 from another perspective;

FIG. 13 is a cross-sectional view C-C of FIG. 10, showing only the second gear, the fourth gear, and the driven shaft;

FIG. 14 is a sectional view taken along line B-B of FIG. 10, after the drive shaft has been rotated in the first direction;

FIG. 15 is a cross-sectional view C-C of FIG. 10, taken late in the rotation of the drive shaft in the first direction;

FIG. 16 is a cross-sectional view C-C of FIG. 10, at the end of the rotation of the drive shaft in the second direction;

fig. 17 is a sectional view taken along line B-B in fig. 10, at the end of the rotation of the drive shaft in the second direction.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the above description of the present specification, the terms "fixed," "mounted," "connected," or "connected," and the like, are to be construed broadly unless otherwise expressly specified or limited. For example, with the term "coupled", it can be fixed, removable, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship. Therefore, unless the specification explicitly defines otherwise, those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used herein, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "central," "longitudinal," "lateral," "clockwise," or "counterclockwise," etc., indicate that terms of orientation or positional relationship are based on those shown in the drawings herein and are intended merely to facilitate explanation of the disclosure and to simplify the description, but do not indicate or imply that the device or element concerned must have the particular orientation, be constructed and operated in the particular orientation, and therefore such terms are not to be understood or construed as limiting the inventive aspects.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.

The application provides a transmission system, which comprises a driving part, a driven part, a first transmission assembly and a second transmission assembly. The first transmission assembly is only connected with the driving part and the driven part in a transmission manner in the first direction, can transmit between the driving part and the driven part in the initial stage of the action of the driving part, and does not transmit in the subsequent stage of the action of the driving part. The second transmission component is only connected with the driving part and the driven part in a second direction in a transmission manner, can transmit between the driving part and the driven part at the initial stage of the action of the driving part, and does not transmit at the subsequent stage of the action of the driving part. The first direction is opposite to the second direction, and when one of the first transmission assembly and the second transmission assembly is in a transmission state, the other one of the first transmission assembly and the second transmission assembly is in a non-transmission state.

The application also provides a cooking machine, including container, heating element, agitator, above-mentioned transmission system and driver. The container is used for containing cooking materials. The heating assembly can be proximate to or remote from the container and heat the container. The stirrer is rotatably arranged in the container. And the driving part in the transmission system is used for being connected with the stirrer so as to drive the stirrer to rotate. A driven member in the drive system is used for driving the heating assembly to approach or move away from the container. The driver is used for driving the driving piece to actuate.

The transmission system and the food processor are described in the following embodiments of food processing. In the following embodiments, the transmission system is applied to a food processor.

Fig. 1 and fig. 2 are a schematic three-dimensional structure diagram and an exploded view of the food processor, respectively. As shown in fig. 1 and 2, the food processor includes a cup body 10 and a main body 20. The cup body 10 is detachably provided on the top of the body main body 20 to facilitate the transfer of the cooking material and the cleaning of the cup body 10. The main body 20 is used for supporting the cup body 10 and providing power and heat to the cup body 10 to cooperate with the cup body 10 to cook the cooking material. The cooking material is soybean and water, and soybean milk can be obtained by cooking.

Fig. 3 and 4 are a sectional view and a three-dimensional structure of the cup body 10, respectively. Fig. 5 is a three-dimensional structure of the bottom of cup 10, specifically bottom wall 112 and connecting wall 1112 of vessel shell 11, of cup 10. As shown in fig. 3-5, cup 10 includes a vessel shell 11, a vessel 12, a knife assembly 13, a drive assembly 14, and a lid 15. The container housing 11 includes a side wall 111 and a bottom wall 112. The side wall 111 and the bottom wall 112 enclose a first cavity 113 for accommodating the container 12. The first cavity 113 is open at a top end to facilitate manipulation of the container 12 by a user. Specifically, the side wall 111 includes a side wall main body 1111 and a connection wall 1112. The sidewall body 1111 is generally cone-shaped with a top outer diameter smaller than a bottom outer diameter. The connecting wall 1112 is substantially cylindrical, is integrally formed with the bottom wall 112, is embedded in the bottom end of the side wall main body 1111, and is detachably connected to the side wall main body 1111. During manufacture, the sidewall body 1111 is a single piece and the connecting wall 1112 and the bottom wall 112 are a single piece. After assembly, the connecting wall 1112 is fixedly connected to the side wall body 1111, which together form the side wall 111. The removable design of the bottom wall 112 may further facilitate the assembly of the container 12 into the first cavity 113. The container 12 is used for containing cooking materials. The container 12 may define a second open-topped cavity 121, with the cooking material being contained in the second cavity 121. The user can fill or pour out the cooking material through the top opening of the container 12 and can also clean the inner wall of the container 12 through the opening.

The container 12 is rotatably connected to the bottom wall 112 of the container housing 11 by the transmission assembly 14 so as to be rotatable about its own axis. The transmission assembly 14 includes a cooking rotation shaft 141, a bearing 142 and two bearings 143.

The bottom wall 112 is centrally provided with a bearing hole 112c. The center of the bottom of the container 12 is provided with a bearing seat 123 projecting downwards, and a bearing hole 1231 penetrating through the bottom of the container 12 is arranged in the bearing seat 123. The bearing housing 123 of the container 12 is inserted into the bearing hole 112c and is rotatably connected to the bottom wall 112 by the bearing 142. The cooking rotating shaft 141 is inserted into the bearing hole 1231 and is rotatably connected with the bearing seat 123 through the bearing 143. The upper end of the cooking rotating shaft 141 extends into the container 12 and is connected with the knife group 13. The bearing 142 and the bearing 143 are both one-way bearings. A one-way bearing is a bearing that enables a rotational connection in one direction, but locks in the opposite direction. In this embodiment, when the cooking rotation shaft 141 rotates, one of the bearing 142 and the bearing 143 is in a rotation connection state, and the other is in a locking state. When the cooking rotating shaft 141 rotates forward, the bearing 142 is in a locked state, the bearing 143 is in a rotation connection state, the cooking rotating shaft 141 only drives the knife group 13 to rotate, and at this time, the cooking machine performs crushing operation to process the cooking material to obtain slurry. When the cooking rotating shaft 141 rotates reversely, the bearing 142 is in a rotating connection state, the bearing 143 is in a locking state, the cooking rotating shaft 141 drives the knife group 13 and the container 12 to rotate simultaneously, and at this time, the cooking machine performs centrifugal operation on the slurry. By controlling the rotation direction of the cooking rotation shaft 141, the cooking machine can selectively perform the crushing operation or the centrifugal operation. When the rotating speed of the container 12 reaches a preset rotating speed, slurry moves towards the inner wall of the container 12 under the action of centrifugal force and is in contact with the inner wall of the container 12, at least part of slag (namely solid particles such as food residues in the slurry) adheres to the inner wall of the container 12, and slurry (namely liquid with high fluidity in the slurry) flows back to the bottom of the container 12, so that centrifugal separation of the slurry is realized.

The knife group 13 is disposed in the second cavity 121 and disposed on the top end of the cooking rotating shaft 141, and can be driven by the cooking rotating shaft 141 to rotate so as to crush the cooking material, thereby obtaining slurry. The blade set 13 is an example of a stirrer. In this embodiment, the knife set 13 also has a stirring function. The knife group 13 includes a cutting knife 131 and a grinding knife 132. The cutting blade 131 is used for cutting the cooking material. The container 12 is provided with grinding teeth 122 at the bottom, and the grinding cutter 132 is used for cooperating with the grinding teeth 122 to grind the cut food material.

The cup cover 15 is detachably provided on the top of the container housing 11 and the container 12. The cap 15 includes an outer cap 151, a bearing seat 152, an inner cap 153, a hollow post 154, and a bearing 155. The outer lid 151 is snap-coupled with the vessel shell 11 to close the top opening of the vessel shell 11. The bearing seat 152 protrudes downward from a central region of the outer cover 151. The inner lid 153 is fitted into an opening at the top of the container 12, is fixed relative to the container 12 by friction, and is non-rotatable relative to the container 12. The hollow post 154 is fixedly disposed at the center of the inner cover 153, and is rotatably coupled to the bearing housing 152 via a bearing 155. The hollow column 154 communicates the second cavity 121 with the external environment so that hot air within the container 12 can escape through the hollow column 154. The bearing 155 is a bidirectional bearing. Due to the bearing 155, the inner cover 153 can rotate along with the container 12 without affecting the rotation of the container 12 when the food processor is operated centrifugally. And since the inner cap 153 and the outer cap 151 are inseparable, the container 12 and the container housing 11 can be opened or closed simultaneously. Liquid splashing in the working process of the food processor can be avoided by arranging the cup cover 15. In this embodiment, the cap 15 is not required.

Fig. 6 is a cross-sectional view of the food processor. As shown in fig. 6, the main body 20 includes a base 21, a heating assembly 22, and a main unit.

Please refer to fig. 2 and fig. 3 together. The base 21 is a hollow housing and forms a cavity 21a with an open top end. The top of the base 21 is provided with a latch assembly 211. The bottom of the sidewall 111 of the container housing 11 is provided with a fastening portion 1112a, and the fastening portion 1112a is fastened to the locking assembly 211 to detachably mount the container housing 11 on the base 21.

As shown in fig. 6, the heating assembly 22 is disposed on the base 21 and can be raised to approach the bottom of the container 12 or lowered to be away from the bottom of the container 12 when the container 12 is detachably mounted on the base 21. Specifically, the heating assembly 22 is located below the container 12, and at least a portion of the heating assembly is disposed in the cavity 21a of the base 21 and movably connected to the base 21 so as to be capable of moving up and down relative to the base 21.

Fig. 7 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A in fig. 6. As shown in fig. 6 and 7, in order to allow the heating unit 22 to move along a predetermined path, the base 21 has a guide portion 217, the heating unit 22 has a guide portion 2221a, and the guide portion 2221a is slidably fitted with the guide portion 217 in a direction in which the heating unit 22 moves. Specifically, the guide portion 217 and the guide portion 2221a are respectively disposed on a pair of opposite surfaces of the base 21 and the heating element 22, the guide portion 217 is a column extending in the moving direction of the heating element 22, and the guide portion 2221a is a groove extending in the moving direction of the heating element 22. In this embodiment, the guiding portion 217 is disposed on the cavity wall of the cavity 21a of the base 21. The guide portions 2221a are provided at the outer edge of the heating block 22. Of course, in other embodiments, the positions of the guiding portion 217 and the guiding portion 2221a may be interchanged, that is, the guiding portion 217 is disposed on the heating assembly 22 and the guiding portion 2221a is disposed on the base 21.

The heating assembly 22 is also capable of self-heating to heat the container 12, and thus the cooking material within the container 12, as the bottom of the container 12 is approached. Further, the heating assembly 22 heats the container 12 when it is against the bottom of the container 12 to improve heat transfer efficiency.

Fig. 8 is a schematic three-dimensional structure diagram of the heating assembly 22 in the food processor. As shown in fig. 5 and 8, in order to heat the bottom of the container 12 by the heating assembly 22, the bottom wall 112 is provided with a first through hole 112a, so that at least a portion of the heating assembly 22 extends into the first cavity 113 and is attached to the bottom of the container 12. Specifically, the number of the first through holes 112a on the bottom wall 112 is several. The heating element 22 has heat-generating protrusions 2211a on the upper surface thereof corresponding to the first through holes 112a one-to-one. An escape groove 2211b matched with the bottom wall 112 in shape is formed between the heat emitting protrusions 2211a. When the heating assembly 22 approaches the bottom of the container 12, the heat-generating protrusion 2211a can pass through the first through hole 112a on the bottom wall 112, and the bottom wall 112 is at least partially received in the bypass groove 2211b. In this embodiment, the bottom wall 112 has three spokes 112b radially distributed. The first through holes 112a are formed between two adjacent spokes 112b. Each of the first through holes 112a has a substantially fan shape. The heat-generating protrusion 2211a has a shape and a size matching the first through hole 112a. As the heating assembly 22 approaches the bottom of the container 12, the spokes 112b are received in the relief grooves 2211b between adjacent heat emitting protrusions 2211a. The bottom wall 112 is provided with a plurality of first through holes 112a so that the heating element 22 can contact with the bottom of the container 12 as much as possible, thereby improving the heating efficiency.

The main machine is used for driving the knife group 13 and/or the container 12 to rotate, and for driving the heating assembly 22 to ascend and descend.

Fig. 9 to 12 are a three-dimensional structure diagram, a sectional view, an exploded view from one viewing angle, and an exploded view from another viewing angle of the main body 20 of the food processor in sequence. Fig. 9 to 12 omit the driver.

As shown in fig. 6, 9 to 12, the main machine includes a transmission system 23, a mount 24, a rotary 25, bearings 271, 272, a fifth gear 273, and a driver (motor 26).

The mounting seat 24 is fixedly disposed in the receiving cavity 21a of the base 21, and is used for mounting the rest components of the host. The mount 24 includes a lower gear box cover 242 and an upper gear box cover 241. The lower gear box cover 242 is fixedly connected to the cavity wall of the receiving cavity 21a. The lower gear case cover 242 is provided at an upper side with an open first recess 2421 and at a lower side with an open second recess 2422. The upper gear box cover 241 is covered on the lower gear box cover 242 and detachably connected with the lower gear box cover 242.

The transmission system is disposed in the first recess 2421. The transmission system includes a driving shaft 231, a driven shaft 232, a first transmission assembly and a second transmission assembly. The driving shaft 231 and the driven shaft 232 are examples of a driving member and a driven member, respectively. In other embodiments, the driving shaft 231 and the driven shaft 232 may be replaced by other shaped objects, such as a cylinder with a rectangular cross section.

The upper and lower ends of the driving shaft 231 respectively penetrate through the upper gear case cover 241 and the lower gear case cover 242, and are rotatably connected to the upper gear case cover 241 and the lower gear case cover 242 through bearings 271 and 272, respectively. When the cup body 10 is disposed on the base 21, the upper end of the driving shaft 231 is in inserting fit with the cooking rotating shaft 141 to drive the cooking rotating shaft 141 to rotate, thereby driving the knife group 13 and/or the container 12 to rotate.

The driven shaft 232 is parallel to and spaced from the driving shaft 231. The upper and lower ends of the driven shaft 232 are inserted into the grooves on the opposite sides of the upper gear box cover 241 and the lower gear box cover 242, respectively, and are rotatable. In order to limit the rotation range of the driven shaft 232, a second limit portion 239 is further fixedly arranged at the lower end of the driven shaft 232. The second stopper portion 239 may be integrally formed with the driven shaft 232. Correspondingly, the lower gearbox cover 242 is further provided with a third limiting part 2425. The third stopper 2425 is configured to abut against the second stopper 239 to limit the rotation of the driven shaft 232. The third position-limiting portion 2425 may be an annular groove extending around the driven shaft 232, and the second position-limiting portion 239 is received in the annular groove. In other embodiments, the third position-limiting part 2425 can also be disposed on the upper gearbox cover 241, and correspondingly, the second position-limiting part 239 is disposed on the upper end of the driven shaft 232.

The first transmission assembly connects the driving shaft 231 and the driven shaft 232. When the driving shaft 231 rotates along the first direction D1, the first transmission assembly is in a transmission state, and the first transmission assembly is capable of being in transmission connection with the driving shaft 231 and the driven shaft 232. The first transmission assembly is capable of transmitting between the driving shaft 231 and the driven shaft 232 at an initial stage of the driving shaft 231 actuation, and does not transmit at a subsequent stage of the driving shaft 231 actuation. When the driving shaft 231 rotates in the second direction D2 opposite to the first direction D1, the first transmission assembly is in a non-transmission state. Specifically, the first transmission assembly includes a first gear 233, a second gear 234, and a first one-way bearing 235. The peripheral side wall of the first gear 233 is fully provided with transmission teeth along the circumferential direction. The first one-way bearing 235 is an example of a first one-way rotational member. The first gear 233 is rotatably received on the driving shaft 231 in only one direction by a first one-way bearing 235. The second gear 234 is fixedly sleeved on the driven shaft 232. The second gear 234 has transmission teeth on a part of its outer peripheral side wall in the circumferential direction, forming a first toothed region 2342. The remaining portion of the peripheral sidewall of the second gear 234 in the circumferential direction is free of teeth, forming a first non-toothed region 2341. The first gear 233 and the second gear 234 (first toothed region 2342) are meshed with each other. When the driving shaft 231 rotates along the first direction D1, the first one-way bearing 235 is in a fixed connection state, the driving shaft 231 drives the first gear 233 to rotate, and the first gear 233 and the second gear 234 transmit, so that the driven shaft 232 rotates along the third direction D3. When the first gear 233 intersects with the first toothless area 2341 of the second gear 234, the driving shaft 231 no longer drives the driven shaft 232 to rotate, and the first transmission assembly does not perform transmission. When the driving shaft 231 rotates along the second direction D2, the first one-way bearing 235 is in a rotation connection state, the driving shaft 231 cannot drive the first gear 233 to rotate, and the first transmission assembly is in a non-transmission state.

The second transmission assembly connects the driving shaft 231 and the driven shaft 232. When the driving shaft 231 rotates in the second direction D2, the second transmission assembly is in a transmission state, and the second transmission assembly is capable of being in transmission connection with the driving shaft 231 and the driven shaft 232. The second transmission assembly can perform transmission between the driving shaft 231 and the driven shaft 232 at an initial stage of the driving shaft 231 actuation, and does not perform transmission at a subsequent stage of the driving shaft 231 actuation. When the driving shaft 231 rotates in the first direction D1, the second transmission assembly is in a non-transmission state. Specifically, the second transmission assembly includes a third gear 236, a fourth gear 237, and a second one-way bearing 238. The peripheral side wall of the third gear 236 is fully provided with transmission teeth along the circumferential direction. The second one-way bearing 238 is an example of a second one-way rotating member. The third gear 236 is rotatably sleeved on the driving shaft 231 in only one direction through a second one-way bearing 238. The fourth gear 237 is fixedly sleeved on the driven shaft 232. A part of the peripheral side wall of the fourth gear 237 in the circumferential direction has a drive tooth, forming a second toothed region 2372. The remaining portion of the peripheral side wall of the fourth gear 237 in the circumferential direction is toothless, forming a second toothless zone 2371. The third gear 236 intermeshes with a fourth gear 237 (second toothed region 2372). When the driving shaft 231 rotates in the second direction D2, the second one-way bearing 238 is in a fixed connection state, the driving shaft 231 drives the third gear 236 to rotate, and the third gear 236 and the fourth gear 237 transmit power, so that the driven shaft 232 rotates in a fourth direction D4 opposite to the third direction D3. When the third gear 236 intersects with the second non-toothed area 2371 of the fourth gear 237, the driving shaft 231 does not drive the driven shaft 232 to rotate any more, and the second transmission assembly does not perform transmission. When the driving shaft 231 rotates along the first direction D1, the second one-way bearing 238 is in a rotation connection state, the driving shaft 231 cannot drive the third gear 236 to rotate, and the second transmission assembly is in a non-transmission state.

From the above analysis, when the driving shaft 231 continuously rotates along the first direction D1, under the transmission action of the first transmission assembly, the driving shaft 231 drives the driven shaft 232 to rotate along the third direction D3 at the initial stage of rotation (the rotation range of the driven shaft 232 is less than 1 turn), and the driving shaft 231 no longer drives the driven shaft 232 to rotate at the subsequent stage of rotation. The driving shaft 231 rotates at a subsequent stage of rotation, and the driven shaft 232 is stationary. When the driving shaft 231 continuously rotates along the second direction D2, under the transmission action of the second transmission assembly, the driving shaft 231 drives the driven shaft 232 to rotate along the fourth direction D4 at the initial stage of rotation (the rotation range of the driven shaft 232 is less than 1 ring), and the driving shaft 231 no longer drives the driven shaft 232 to rotate at the subsequent stage of rotation. The driving shaft 231 rotates at a subsequent stage of rotation, and the driven shaft 232 is stationary.

Fig. 13 is a sectional view taken along line C-C in fig. 10, and fig. 13 shows only the second gear 234, the fourth gear 237, and the driven shaft 232. In the present embodiment, the outer diameters of the second gear 234 and the fourth gear 237 are the same, but for the convenience of distinguishing the second gear 234 from the fourth gear 237, the outer diameters of the second gear 234 and the fourth gear 237 are set to be different in fig. 13.

As shown in fig. 13, the first toothed region 2342 of the second gear 234 and the second toothed region 2372 of the fourth gear 237 both extend in the circumferential direction of the driven shaft 232. First end 2342a of first toothed region 2342 exceeds first end 2372a of second toothed region 2372. Second end 2342b of first toothed region 2342 is shorter than second end 2372b of second toothed region 2372.

Fig. 14 is a sectional view B-B of fig. 10 at the end of the rotation of the driving shaft 231 in the first direction D1. Fig. 15 is a C-C sectional view in fig. 10 at the later stage of the rotation of the driving shaft 231 in the first direction D1. Fig. 14 and 15 show only part of the drive train 23. The states shown in fig. 14 and 15 are at the same time.

As shown in fig. 14 and 15, when the driving shaft 231 rotates in the first direction D1, the first one-way bearing 235 is in a fixedly coupled state and the second one-way bearing 238 is in a rotatably coupled state. The first gear 233 and the second gear 234 are driven, so that the driving shaft 231 drives the driven shaft 232 to rotate along the third direction D3. When the first gear 233 is engaged with the second end 2342b of the first toothed region 2342 of the second gear 234, the third gear 236 is engaged with the fourth gear 237 at a position on the second end 2372b of the second toothed region 2372 that faces away from the second non-toothed region 2371. Thus, it is ensured that the third gear 236 is well engaged with the fourth gear 237 when the axle shaft 231 rotates in the second direction D2.

Fig. 16 is a cross-sectional view C-C of fig. 10, at the end of the rotation of the driving shaft 231 in the second direction D2. Fig. 17 is a B-B sectional view in fig. 10, at the later stage of the rotation of the driving shaft 231 in the second direction D2. Fig. 16 and 17 show only part of the drive train 23. The states shown in fig. 16 and 17 are at the same time.

As shown in fig. 16 and 17, when the driving shaft 231 rotates in the second direction D2, the second one-way bearing 238 is in a fixedly coupled state and the first one-way bearing 235 is in a rotatably coupled state. The third gear 236 is in transmission with the fourth gear 237, such that the driving shaft 231 drives the driven shaft 232 to rotate in the fourth direction D4. When the third gear 236 is engaged with the first end 2372a of the second toothed region 2372 of the fourth gear 237, the engaged position of the first gear 233 and the second gear 234 is on the side of the first end 2342a of the first toothed region 2342 facing away from the first non-toothed region 2341. Thus, it is ensured that the first gear 233 is well engaged with the second gear 234 when the driving shaft 231 rotates in the first direction D1.

As shown in fig. 9 to 12, the rotary member 25 is located between the lower gear case cover 242 and the upper gear case cover 241. The rotary member 25 is annular, and is provided around the drive shaft 231 and the driven shaft 232 and around the first recess 2421. The rotary member 25 can rotate about a rotation axis in a direction (up-down direction in fig. 10) in which the heating unit 22 approaches or separates from the container 12. Specifically, the rotary member 25 is provided with a cylinder 252 extending along the rotation axis of the rotary member 25. The cylinder 252 is an example of a first guide portion. The lower gear case cover 242 is provided with a groove 2423 extending around the rotation axis of the rotary member 25. The groove 2423 is one example of the second guide portion. The cylinder 252 is at least partially inserted into the groove 2423 and is slidably fitted around the rotating shaft of the rotating member 25 to guide the rotating member 25 to rotate. A first stopper 2424 is further disposed in the groove 2423. The first stopping portion 2424 is used for contacting the column 252 to limit the rotation of the rotating element 25. In other embodiments, the groove 2423 and the first position-limiting part 2424 may also be disposed on the upper gearbox cover 241.

The rotating member 25 has a plurality of teeth, which are disposed around the rotating shaft of the rotating member 25. The fifth gear 273 is fixedly fitted over the upper end of the driven shaft 232. The rotating member 25 is engaged with the fifth gear 273 by a plurality of gear teeth. When the driven shaft 232 rotates, the rotating member 25 can be driven to rotate.

The rotational movement of the rotary member 25 can be converted into a linear movement of the heating assembly 22 in the direction of the rotation axis of the rotary member 25. Specifically, the rotating member 25 has a driving surface 251, the driving surface 251 is located outside the rotating shaft of the rotating member 25, extends around the rotating shaft of the rotating member 25 while extending along the rotating shaft of the rotating member 25 to form a spiral surface, and the driving surface 251 is used for interfering with the heating assembly 22 in a direction oblique to the rotating shaft of the rotating member 25. When the rotating member 25 is driven by the driven shaft 232 to rotate, the heating assembly 22 can be driven to ascend or descend. In other embodiments, the driving surface 251 may be disposed on the heating assembly 22.

The drive may be a motor 26. At least a portion of the motor 26 is received in the second recess 2422 and is fixedly connected to the lower gearbox cover 242. The output shaft of the motor 26 is capable of forward and reverse rotation and is connected to the drive shaft 231.

The working process is as follows:

the food processor starts the crushing operation: the motor 26 rotates forward to drive only the knife assembly 13 to rotate through the driving shaft 231, and simultaneously, the driven shaft 232 drives the heating assembly 22 to ascend to be attached to the container 12.

During or after the crushing of the cooking material, the heating assembly 22 heats the container 12 to cook the cooking material.

After the cooking is finished, the food processor starts centrifugal operation: the motor 26 rotates reversely, the driving shaft 231 drives the knife assembly 13 and the container 12 to rotate, and meanwhile, the driven shaft 232 drives the heating assembly 22 to descend, so that the heating assembly 22 is separated from the container 12.

The beneficial effects of this embodiment:

the stirrer stirring and heating assembly 22 can be lifted and lowered simultaneously through the motor 26 without adding a driving device. In this embodiment, the rotation of the knife set 13 and the rotation of the container 12 both achieve the stirring function.

The toothed regions of the second gear 234 and the fourth gear 237 both extend in the circumferential direction of the driven shaft 232, a first end of the toothed region of the second gear 234 exceeds the same end of the toothed region of the fourth gear 237, and a second end of the toothed region of the second gear 234 is less than the same end of the toothed region of the fourth gear 237. Thereby, it is possible to ensure that the first gear 233 and the second gear 234 are stably engaged or the third gear 236 and the fourth gear 237 are stably engaged in the initial stage of the rotation of the motive shaft 231 in the first direction and the second direction, respectively.

The food processor is provided with an upper gear box cover 241 and a lower gear box cover 242. The lower gear box cover 242 is provided at an upper side thereof with an opened first recess 2421. The upper gear box cover 241 is covered on the lower gear box cover 242 and detachably connected with the lower gear box cover 242. The transmission system 23 is disposed in the first recess 2421, and can be kept clean. In addition, assembly of the drive train 23 is facilitated. The lower gear box cover 242 has an open second recess 2422, and at least a portion of the motor 26 is received in the second recess 2422 and is fixedly connected to the lower gear box cover 242. Compare in motor 26 and base 21 fixed connection, the host computer structure of cooking machine is compacter. In the process of assembling the food processor, the host can be assembled into the accommodating cavity 21a of the base 21 after the host is assembled. This can improve the assembly efficiency.

The heating assembly 22 is disposed on the base 21 and can be close to or remote from the container 12. Thus, even if the liquid flows down the outer wall surface of the container 12 in a state where the heating element 22 is away from the container 12, the liquid does not directly flow onto the heating element 22. In addition, because the heating element 22 is separable from the container 12, the heating element 22 is not contaminated with liquid (water) when the container 12 is cleaned. This embodiment reduces the likelihood of the heater assembly 22 becoming liquid-contaminated, thereby reducing the risk of shorting or damaging the heater assembly 22.

The heating assembly 22 is provided on the body 20 to reduce the weight of the cup 10 as compared to being fixed to the container 12. The user's operation is facilitated when the cup 10 is transferred.

The heating assembly 22 is disposed on the body 20, which lowers the center of gravity of the food processor compared to being fixed on the container 12, so that the food processor operates more stably.

In this embodiment, the container 12 is rotatable, and the heating unit 22 is provided on the body 20, thereby reducing the load on the motor 26 as compared with the case where it is fixed to the container 12.

Other alternative embodiments:

in other embodiments, the transmission system 23 may have the following structure:

the structure I is as follows: the transmission system 23 includes a driving shaft 231, a driven shaft 232, a first gear 233, a second gear 234, a first one-way bearing 235, a third gear 236, a fourth gear 237, and a second one-way bearing 238. The first gear 233 is fixedly sleeved on the driving shaft 231. The second gear 234 is rotatably sleeved on the driven shaft 232 in only one direction through a first one-way bearing 235. The first gear 233 and the second gear 234 are meshed with each other. The second gear 234 has a toothless region. The third gear 236 is fixedly sleeved on the driving shaft 231. The fourth gear 237 is rotatably sleeved on the driven shaft 232 only in one direction through a second one-way bearing 238. The third gear 236 and the fourth gear 237 are meshed with each other. The fourth gear 237 has a non-toothed region. When the driving shaft 231 rotates, one of the first one-way bearing 235 and the second one-way bearing 238 is in a rotation connection state, and the other is in a fixed connection state.

The structure II is as follows: the transmission system 23 includes a driving shaft 231, a driven shaft 232, a first gear 233, a second gear 234, a first one-way bearing 235, a third gear 236, a fourth gear 237, and a second one-way bearing 238. The first gear 233 is rotatably received on the driving shaft 231 in only one direction by a first one-way bearing 235. The second gear 234 is fixedly sleeved on the driven shaft 232. The first gear 233 and the second gear 234 are meshed with each other. The second gear 234 has a toothless region. The third gear 236 is fixedly sleeved on the driving shaft 231. The fourth gear 237 is rotatably sleeved on the driven shaft 232 only in one direction through a second one-way bearing 238. The third gear 236 and the fourth gear 237 are meshed with each other. The fourth gear 237 has a non-toothed region. When the driving shaft 231 rotates, one of the first one-way bearing 235 and the second one-way bearing 238 is in a rotation connection state, and the other is in a fixed connection state.

The structure is three: the transmission system 23 includes a driving shaft 231, a driven shaft 232, a first gear 233, a second gear 234, a first one-way bearing 235, a third gear 236, a fourth gear 237, and a second one-way bearing 238. The first gear 233 is fixedly sleeved on the driving shaft 231. The second gear 234 is rotatably sleeved on the driven shaft 232 in only one direction through a first one-way bearing 235. The first gear 233 and the second gear 234 are meshed with each other. The second gear 234 has a toothless region. The third gear 236 is rotatably sleeved on the driving shaft 231 in only one direction through a second one-way bearing 238. The fourth gear 237 is fixedly sleeved on the driven shaft 232. The third gear 236 and the fourth gear 237 are meshed with each other. The fourth gear 237 has a non-toothed region. When the driving shaft 231 rotates, one of the first one-way bearing 235 and the second one-way bearing 238 is in a rotation connection state, and the other is in a fixed connection state.

In the embodiment shown in fig. 1, the output shaft of the motor 26 is coaxially connected to the drive shaft 231. Generally, the axial dimension of the motor 26 at the output shaft is large, so that the motor 26 occupies a large space in the vertical direction, and the overall height of the food processor is high. In another embodiment, the output shaft of the motor 26 may be inclined with respect to the driving shaft 231 in order to reduce the overall height of the food processor. Specifically, the drive includes a motor 26 and an intersecting shaft drive assembly (not shown). The output shaft of the motor 26 intersects the drive shaft 231 and is capable of forward and reverse rotation. The intersecting shaft drive assembly may be of the prior art for driving between two intersecting shafts. The output shaft of the motor 26 drives the driving shaft 231 to rotate through the intersecting shaft transmission assembly. For example, the output shaft of the motor 26 is perpendicular to the drive shaft 231. When the food processor is in use, the conveying shaft of the motor 26 is horizontally arranged. From this, can reduce the overall height of cooking machine.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (11)

1. A transmission system, comprising:

a driving part and a driven part;

the first transmission assembly is only connected with the driving part and the driven part in a transmission manner in a first direction, and can perform transmission between the driving part and the driven part in the initial stage of the action of the driving part and not perform transmission in the subsequent stage of the action of the driving part;

the second transmission assembly is only connected with the driving part and the driven part in a second direction in a transmission manner, and can perform transmission between the driving part and the driven part at the initial stage of the action of the driving part and does not perform transmission at the subsequent stage of the action of the driving part;

the first direction is opposite to the second direction, and when one of the first transmission assembly and the second transmission assembly is in a transmission state, the other one of the first transmission assembly and the second transmission assembly is in a non-transmission state.

2. The transmission system of claim 1,

the driving part is a driving shaft, and the driven part is a driven shaft;

the first transmission assembly includes:

the first gear is rotatably sleeved on the driving shaft in one direction only through the first one-way rotating piece, the second gear is fixedly sleeved on the driven shaft, or the first gear is fixedly sleeved on the driving shaft, the second gear is rotatably sleeved on the driven shaft in one direction only through the first one-way rotating piece, the first gear and the second gear are meshed with each other, and the second gear is provided with a toothless area;

the second transmission assembly includes: the third gear is rotatably sleeved on the driving shaft in one direction only through the second one-way rotating piece, the fourth gear is fixedly sleeved on the driven shaft, or the third gear is fixedly sleeved on the driving shaft, the fourth gear is rotatably sleeved on the driven shaft in one direction only through the second one-way rotating piece, the third gear and the fourth gear are meshed with each other, and the fourth gear is provided with a non-tooth area;

when the driving shaft rotates, one of the first unidirectional rotating part and the second unidirectional rotating part is in a rotating connection state, and the other one of the first unidirectional rotating part and the second unidirectional rotating part is in a fixed connection state.

3. The transmission system of claim 2,

the first one-way rotating part and/or the second one-way rotating part are/is a one-way bearing.

4. The transmission system of claim 2,

the toothed regions of the second and fourth gears extend in the circumferential direction of the driven shaft, a first end of the toothed region of the second gear exceeds the same end of the toothed region of the fourth gear, and a second end of the toothed region of the second gear is not as close to the same end of the toothed region of the fourth gear.

5. A food processor, comprising:

the container is used for containing cooking materials;

a stirrer rotatably disposed in the container;

a heating assembly capable of being brought close to or away from the container and heating the container;

the transmission system as claimed in any one of claims 1 to 4, wherein the driving member of the transmission system is adapted to be connected to the stirrer to rotate the stirrer, and the driven member of the transmission system is adapted to drive the heating element to move toward or away from the container;

the driver is used for driving the driving piece to actuate.

6. The food processor of claim 5, comprising:

the fifth gear is fixedly sleeved on the driven part;

the rotating piece can rotate by taking the direction of the heating assembly approaching or far away from the container as the direction of the rotating shaft, the rotating piece is meshed with the fifth gear, and the rotating motion of the rotating piece can be converted into the linear motion of the heating assembly along the direction of the rotating shaft.

7. The food processor of claim 6, comprising:

the upper side of the lower gear box cover is provided with an open first concave part, and the lower side of the lower gear box cover is provided with an open second concave part;

the upper gear box cover is covered on the lower gear box cover and is detachably connected with the lower gear box cover;

the transmission system is arranged in the first concave part, the driving part and the driven part are respectively connected to the upper gear box cover and the lower gear box cover in a rotating mode, the rotating part is located between the lower gear box cover and the upper gear box cover and is arranged outside the first concave part in a surrounding mode, and at least part of the driver is contained in the second concave part and is fixedly connected with the lower gear box cover.

8. The food processor of claim 7, comprising:

a first guide portion provided to the rotary member;

and the second guide part is arranged on the lower gear box cover or the upper gear box cover and is in sliding fit with the first guide part around the rotating shaft.

9. The food processor of claim 8,

the first guide part is a cylinder extending along the rotating shaft, the second guide part is a groove extending around the rotating shaft, and at least part of the cylinder is inserted into the groove.

10. The food processor of claim 9, comprising:

the first limiting part is arranged in the groove and used for being abutted to the cylinder so as to limit the rotation of the rotating part.

11. The food processor of claim 7, comprising:

the second limiting part is arranged on the driven part;

and the third limiting part is arranged on the lower gear box cover or the upper gear box cover and is used for abutting against the second limiting part to limit the rotation of the driven part.

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