Stirring structure of food processer and stirrer

Abstract

The utility model relates to a stirring structure of a food processor and a stirrer. The stirring structure comprises a rotating part, a stirring shaft assembly, a first speed reduction assembly, a second speed reduction assembly and a motor assembly, and the stirring shaft assembly is used for being connected with the stirring cutter and can move in the axial direction of the stirring shaft assembly relative to the rotating part; the first speed reduction assembly is connected to the rotating part, and the rotating part can drive the stirring shaft assembly to rotate under the action of the first speed reduction assembly; the two ends of the second speed reduction assembly are connected to the stirring shaft assembly and the first speed reduction assembly correspondingly so that the second speed reduction assembly can move under the action of the first speed reduction assembly, the stirring shaft assembly can move in the axial direction of the stirring shaft assembly under the action of the second speed reduction assembly, and the motor assembly is connected to the first speed reduction assembly so as to drive the first speed reduction assembly to move. According to the stirring structure, the stirring knife can move up and down, so that the effective stirring height of the stirring knife is increased, stirring is more sufficient, and the stirring effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of stirring, in particular to a stirring structure of a cooking machine and a blender with the stirring structure. Background Art

[0002] The blender achieves the stirring purpose through the rotating stirring blade in the stirring structure. Taking the food blender as an example, the food blender can cut and break food, and it is a common kitchen appliance in people's lives.

[0003] At present, the stirring structure in the blender can only rotate and stir at a certain fixed height, and this height is approximately equal to the distribution height of the blades in the stirring blade. That is to say, the stirring structure has a better stirring effect on the food within the distribution height range of the blades, while the stirring effect on the food outside the distribution height of the blades is relatively poor. This height can be called the effective stirring height. Summary of the Utility Model

[0004] Problems to be Solved by the Utility Model

[0005] In view of the problem of relatively poor stirring effect of the current stirring structure, the present disclosure provides a stirring structure of a cooking machine and a blender.

[0006] Solutions for Solving the Problems

[0007] In a first aspect embodiment of the present disclosure, a stirring structure of a cooking machine is provided, and the stirring structure includes:

[0008] A rotating member;

[0009] A stirring shaft assembly for connecting the stirring blade, and the stirring shaft assembly can move axially relative to the rotating member along the axial direction of the stirring shaft assembly;

[0010] A first reduction assembly connected to the rotating member, and the rotating member can drive the stirring shaft assembly to rotate under the action of the first reduction assembly;

[0011] A second reduction assembly, with both ends of the second reduction assembly respectively connected to the stirring shaft assembly and the first reduction assembly, the second reduction assembly can move under the action of the first reduction assembly, and the stirring shaft assembly can move axially along the axial direction of the stirring shaft assembly under the action of the second reduction assembly;

[0012] A motor assembly connected to the first reduction assembly to drive the first reduction assembly to move.

[0013] Optionally, the first reduction assembly is a gear assembly.

[0014] Optionally, the second speed reduction component is a conversion structure that converts the rotational motion output by the first speed reduction component into a linear motion for driving the stirring shaft component.

[0015] Optionally, the second speed reduction component includes a worm and worm gear mechanism or a cam link mechanism.

[0016] Optionally, the second speed reduction component includes a worm and worm gear mechanism, and the worm and worm gear mechanism includes:

[0017] A worm having worm teeth distributed along its axial direction, and the worm is distributed in parallel with the stirring shaft component;

[0018] A worm wheel including worm teeth on the circumferential surface of the worm wheel and an eccentric column on the side surface of the worm wheel, and the eccentric column is eccentrically arranged relative to the center of the worm wheel;

[0019] The eccentric column is connected to the stirring shaft component.

[0020] Optionally, the stirring shaft component has a slot, the slot is a long strip extending in the horizontal direction, and the eccentric column is slidably inserted into the slot.

[0021] Optionally, the worm and worm gear mechanism further includes:

[0022] A worm gear connected to the worm and connected to the first speed reduction component, and the worm can rotate under the action of the worm gear.

[0023] Optionally, the worm gear is a worm gear, and the worm gear meshes with the first speed reduction component.

[0024] Optionally, the first speed reduction component includes at least one stage of speed reduction mechanism;

[0025] When the first speed reduction component is at least a two-stage speed reduction mechanism, the first-stage speed reduction mechanism of the first speed reduction component is connected to the motor component, and the last-stage speed reduction mechanism of the first speed reduction component is respectively connected to the rotating member and the second speed reduction component.

[0026] Optionally, the motor component includes an output shaft and an output shaft gear connected to the output shaft; the first-stage speed reduction mechanism includes: a double-layer gear, the first layer gear of the double-layer gear meshes with the output shaft gear of the motor component, and the second layer gear of the double-layer gear meshes with the second-stage speed reduction mechanism of the first speed reduction component; wherein, the number of teeth of the second layer gear is less than the number of teeth of the first layer gear.

[0027] Optionally, the transmission ratio between the motor assembly and the first-stage reduction mechanism is 2:1, the transmission ratio between the first-stage reduction structure and the final-stage reduction mechanism is 3:1, and the transmission ratio between the final-stage reduction mechanism and the rotating member is 1:2;

[0028] The transmission ratio between the final-stage reduction mechanism and the worm and worm gear mechanism is 4:1, and the transmission ratio between the worm and the worm gear is 20:1.

[0029] Optionally, the stirring shaft assembly includes: a shaft assembly and a fixing pin connected to the shaft assembly;

[0030] The rotating member includes: a sleeve and transmission teeth located on the outer wall of the sleeve; the transmission teeth are connected to the second reduction assembly;

[0031] The sleeve is sleeved outside the shaft assembly and has an avoidance groove arranged along the axial direction of the stirring shaft assembly, and the fixing pin passes through the avoidance groove;

[0032] The first groove wall of the avoidance groove can abut against the fixing pin to limit the further movement of the stirring shaft assembly in the first direction;

[0033] The second groove wall of the avoidance groove can abut against the fixing pin to limit the further movement of the stirring shaft assembly in the second direction; wherein, the second direction is opposite to the first direction.

[0034] Optionally, the number of the fixing pins is at least two, and the lengths of at least two fixing pins extending out of the avoidance groove are equal.

[0035] Optionally, the shaft assembly includes:

[0036] A stirring shaft for connecting the stirring blade;

[0037] A connecting rod respectively connected to the stirring shaft and the second reduction assembly;

[0038] A sliding bearing connected to the stirring shaft to enable the stirring shaft to axially move relative to the sleeve;

[0039] A rolling bearing respectively connected to the stirring shaft and the connecting rod to enable the stirring shaft to rotate relative to the connecting rod.

[0040] An embodiment of the second aspect of the present disclosure provides a mixer, and the mixer includes:

[0041] A machine shell;

[0042] The stirring structure according to any embodiment of the first aspect, the stirring structure is located inside the casing, the casing has a first through hole, and the first through hole is used for allowing a part of the stirring shaft assembly to extend out of the casing;

[0043] A stirring blade, connected to the stirring shaft assembly and located outside the casing.

[0044] Optionally, the stirring blade is detachably connected to the stirring shaft assembly.

[0045] Optionally, the outer peripheral surface of the stirring shaft of the stirring shaft assembly has a clamping groove;

[0046] The stirring blade includes a tool holder, a blade, an elastic member and a clamping member. The blade is connected to the outer peripheral surface of the tool holder, and the elastic member is respectively connected to the tool holder and the clamping member;

[0047] When the stirring shaft is assembled with the tool holder in place, under the elastic force provided by the elastic member, the clamping member is inserted into the clamping groove.

[0048] Optionally, the tool holder includes:

[0049] A tool holder body, the tool holder body is a hollow member, one end of the tool holder body facing the casing has an opening, and the elastic member is connected to the tool holder body;

[0050] A shaft sleeve, located inside the tool holder body and having a second through hole for the clamping member to pass through. The shaft sleeve is sleeved on the stirring shaft and can rotate with the rotation of the stirring shaft.

[0051] Optionally, the mixer further includes:

[0052] A mixing cup, connected to the casing and having an accommodating space for accommodating the material to be stirred. The bottom of the mixing cup has a third through hole for the stirring shaft assembly to pass through; the stirring blade is located inside the accommodating space; the top of the mixing cup is open;

[0053] A mixing lid, detachably connected to the mixing cup and capable of covering the top opening.

[0054] Effects of the utility model

[0055] In the stirring structure of the embodiments of the present disclosure, the second reduction assembly is used to drive the stirring shaft assembly to move axially, so that the up and down movement of the stirring blade can be realized, thereby increasing the effective stirring height of the stirring blade, making the stirring more sufficient and the stirring effect better.

[0056] The second speed reduction component is connected to the first speed reduction component. In this way, under the speed reduction effect of the second speed reduction component itself, the speed reduction effect of the first speed reduction component can be superimposed, so that the speed finally transmitted to the stirring shaft component can be sufficiently reduced, and the expansion and contraction of the stirring blade will not be too fast, which is beneficial to further improving the stirring effect. Moreover, this way makes full use of the first speed reduction component and is also beneficial to improving the compactness of the stirring structure.

[0057] The motor component is connected to the first speed reduction component. While the first speed reduction component drives the stirring shaft component to rotate, it can also drive the second speed reduction component to move, and thus the stirring shaft component can be made to perform stirring and up-and-down movements simultaneously. Moreover, this driving method uses one motor component to achieve two movement modes of the stirring shaft component, further improving the compactness of the stirring structure.

[0058] The mixer of the embodiment of the present disclosure includes the above-mentioned stirring structure, and thus the mixer also has the above-mentioned beneficial effects, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a partial structural schematic diagram of the stirring structure in an optional embodiment of the present disclosure;

[0060] Figure 2 It is Figure 1 one of the structural schematic diagrams of the stirring structure from another perspective in

[0061] Figure 3 It is Figure 1 another structural schematic diagram of the stirring structure from another perspective in

[0062] Figure 4 It is Figure 1 the third structural schematic diagram of the stirring structure from another perspective in

[0063] Figure 5 It is Figure 1 the double-layer gear structural schematic diagram of the stirring structure in

[0064] Figure 6 It is a stirring structure schematic diagram including Figure 1 the above-mentioned partial structure;

[0065] Figure 7 It is the external structural schematic diagram of the mixer in an optional embodiment of the present disclosure;

[0066] Figure 8 It is Figure 7 the first longitudinal sectional view of the mixer;

[0067] Figure 9 It is Figure 7 the second longitudinal sectional view of the mixer;

[0068] Figure 10 Three of the longitudinal sectional views of the blender; Figure 7

[0069] Figure 11 Three of the partial structural schematic diagrams of the stirring shaft assembly in Figure 1 and Figure 8 ;

[0070] Figure 12 Three of the enlarged views at position A in Figure 11 ;

[0071] Figure 13 Three of the external structural schematic diagrams of the stirring blade in Figure 8 ;

[0072] Figure 14 Three of the longitudinal sectional views of the stirring blade in Figure 13 ;

[0073] Figure 15 Three of the partial structural schematic diagrams of the blender after the stirring blade is installed in the blender in Figure 13 ;

[0074] Explanation of the reference numerals in the drawings

[0075] 110, stirring shaft assembly; 111, stirring shaft; 112, connecting rod; 1121, slot; 113, fixing pin; 114, sliding bearing; 115, rolling bearing; 116, clamping groove;

[0076] 120, first reduction assembly; 121, double - layer gear; 1211, first - layer gear; 1212, second - layer gear; 122, final reduction mechanism;

[0077] 130, second reduction assembly; 131, worm; 1311, worm teeth; 132, worm wheel; 1321, worm wheel teeth; 1322, circumferential surface of the worm wheel; 1323, eccentric column; 1324, shaft hole; 133, worm gear;

[0078] 140, motor assembly; 141, output shaft gear; 142, output shaft;

[0079] 150, rotating part; 151, sleeve; 152, transmission teeth; 153, avoidance groove; 1531, first groove wall; 1532, second groove wall;

[0080] 160, gearbox; 161, gearbox upper cover; 162, gearbox lower cover; 163, gearbox cover plate; 164, first cavity; 165, second cavity;

[0081] 170, housing; 171, power switch; 172, body cover plate;

[0082] 180, mixing cup; 181, accommodation space;​

[0083] 190. Stirring lid

[0084] 200. Circuit board

[0085] 300. Stirring blade; 310. Tool holder; 311. Tool holder body; 320. Blade; 330. Tool holder cover plate; 340. Elastic member; 350. Fastening member; 360. Bushing; 361. Second through hole Detailed implementation manners

[0086] To make the technical solutions and beneficial effects of the embodiments of the present disclosure more obvious and understandable, the following will be described in detail by listing specific embodiments. Among them, the drawings are not necessarily drawn to scale, and local features can be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which the embodiments of the present disclosure belong

[0087] In the description of the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of the simplified description of the embodiments of the present disclosure, rather than indicating that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, that is, it cannot be understood as a limitation to the embodiments of the present disclosure

[0088] In the embodiments of the present disclosure, the terms "first" and "second" are only used for the purpose of clear description and cannot be understood as the relative importance of the indicated features or the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may clearly include at least one such feature. In the description of the embodiments of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc.; the meaning of "several" is at least one, such as one, two, three, etc.; unless otherwise clearly and specifically defined

[0089] In the embodiments of the present disclosure, unless otherwise clearly defined, the terms "mount", "connect", "couple", "fix", "set", etc. should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can also be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances

[0090] In the embodiments of the present disclosure, unless otherwise clearly defined, when a first feature is "on", "above", "over" or "upon" a second feature, or "under", "beneath", "below" or "underneath" the second feature, the first feature and the second feature may be in direct contact, or the first feature and the second feature may be in indirect contact through an intermediate medium. Moreover, when the first feature is "above", "over" or "upon" the second feature, the first feature may be directly above or obliquely above the second feature, or merely indicate that the horizontal height of the first feature is higher than the horizontal height of the second feature. When the first feature is "under", "beneath", "below" or "underneath" the second feature, the first feature may be directly below or obliquely below the second feature, or merely indicate that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0091] Such as Figure 1 The stirring structure of the cooking machine provided by the embodiments of the present disclosure includes: a rotating member 150, a stirring shaft assembly 110, a first reduction assembly 120, a second reduction assembly 130, and a motor assembly 140.

[0092] Among them, the stirring shaft assembly 110 is used to connect the stirring blade 300 (such as Figure 8 shown), and the stirring shaft assembly 110 can move axially along the stirring shaft assembly 110 relative to the rotating member 150. The first reduction assembly 120 is connected to the rotating member 150, and the rotating member 150 can drive the stirring shaft assembly 110 to rotate under the action of the first reduction assembly 120. Both ends of the second reduction assembly 130 are respectively connected to the stirring shaft assembly 110 and the first reduction assembly 120. The second reduction assembly 130 can move under the action of the first reduction assembly 120, and the stirring shaft assembly 110 can move axially along the stirring shaft assembly 110 under the action of the second reduction assembly 130. The motor assembly 140 is connected to the first reduction assembly 120 to drive the first reduction assembly 120 to move.

[0093] In the embodiments shown in the present disclosure, the second reduction assembly 130 is: a conversion structure that converts the rotational motion output by the first reduction assembly 120 into a linear motion for driving the stirring shaft assembly 110.

[0094] In the embodiments shown in the present disclosure, the second reduction assembly 130 is a worm and worm gear mechanism.

[0095] In the embodiments not shown in the present disclosure, the second reduction assembly 130 may also be a cam link mechanism. The structure of the second reduction assembly is not limited thereto.

[0096] The rotating member 150 is circumferentially fixed to the stirring shaft assembly 110 but not axially fixed. Thus, the rotating member 150 can move along the axial direction of the stirring shaft assembly 110, but the two cannot rotate relative to each other. That is to say, when the rotating member 150 is subjected to a rotational external force, it can drive the stirring shaft assembly 110 to rotate synchronously; when the stirring shaft assembly 110 is subjected to a linear external force in the axial direction, the stirring shaft assembly 110 can move linearly along its axial direction alone, while the rotating member 150 does not move.

[0097] The driving force output by the motor assembly 140 drives the first reduction assembly 120 to move. Since the rotating member 150 is connected to the first reduction assembly 120, the first reduction assembly 120 drives the rotating member 150 to rotate, and the rotating member 150 then drives the stirring shaft assembly 110 to rotate. When the first reduction assembly 120 moves, it also drives the second reduction assembly 130 to move, and then the second reduction assembly 130 drives the stirring shaft assembly 110 to move along its axial direction. The linear movement of the stirring shaft assembly 110 along its axial direction includes: moving upward axially and moving downward axially, and can move reciprocally.

[0098] Figure 1 Exemplarily shown is a rotating member 150 that is generally cylindrical and tubular, and the rotating member 150 is sleeved outside the stirring shaft assembly 110.

[0099] Since the stirring blade 300 can be fixed to the stirring shaft assembly 110, the stirring shaft assembly 110 is used to drive the stirring blade 300 to perform telescopic movement, increasing the effective stirring height of the stirring blade 300, making the stirring more sufficient and the stirring effect better.

[0100] The second reduction assembly 130 is connected to the first reduction assembly 120. In this way, under the deceleration effect of the second reduction assembly 130 itself, the deceleration effect of the first reduction assembly 120 can be superimposed, so that the speed finally transmitted to the stirring shaft assembly 110 is sufficiently reduced, and the telescopic movement of the stirring blade 300 will not be too fast, which is beneficial to further improving the stirring effect. Moreover, this way makes full use of the first reduction assembly 120 and is also beneficial to improving the compactness of the stirring structure.

[0101] The motor assembly 140 is connected to the first reduction assembly 120. While the first reduction assembly 120 drives the stirring shaft assembly 110 to rotate, it can also drive the second reduction assembly 130 to move, and then the stirring shaft assembly 110 can perform stirring and up-and-down movements simultaneously. Moreover, this driving method uses one motor assembly 140 to realize two movement modes of the stirring shaft assembly 110, further improving the compactness of the stirring structure.

[0102] Compared with the gear mechanism, the worm and worm gear mechanism or the cam link mechanism can obtain a larger transmission ratio, which is beneficial to improving the compactness of the stirring structure and reducing the volume of the stirring structure.

[0103] In the embodiments shown in the present disclosure, the first reduction assembly 120 is a gear assembly. It can be understood that the first reduction assembly 120 can also be a belt drive assembly, a worm and worm gear drive assembly, a sprocket drive assembly, etc.

[0104] According to some alternative embodiments, such as Figures 1 to 4 , and Figure 6 shown, the worm and worm gear mechanism includes: a worm 131 and a worm wheel 132. The worm 131 has worm teeth 1311 distributed along its axial direction, and the worm 131 is distributed in parallel with the stirring shaft assembly 110; the worm wheel 132 includes worm teeth 1321 located on the circumferential surface 1322 of the worm wheel 132, and an eccentric post 1323 located on the side surface of the worm wheel 132 (refer to Figure 2 ), the eccentric post 1323 is eccentrically arranged relative to the center of the worm wheel 132; the eccentric post 1323 is connected to the stirring shaft assembly 110.

[0105] The side surface of the worm wheel 132 refers to: the wall surface extending from the center of the worm wheel 132 to the circumferential surface 1322 of the worm wheel 132 along the radial direction of the worm wheel 132.

[0106] Such as Figure 2 shown, the stirring shaft assembly 110 has a slot 1121, and the eccentric post 1323 is slidably inserted into the slot 1121. The slot 1121 is a long strip extending in the horizontal direction (i.e., perpendicular to the axial direction of the stirring shaft assembly 110). While the worm wheel 132 drives the eccentric post 1323 to slide along the length direction of the slot 1121, the worm wheel 132 synchronously drives the connecting rod 112 and the stirring shaft 111 to move axially.

[0107] The sliding of the eccentric post 1323 in the long strip-shaped slot 1121 can prevent the connecting rod 112 and the stirring shaft 111 from being affected by the rotation of the worm wheel 132, effectively ensuring that the worm and worm gear assembly converts the rotational motion into a linear motion.

[0108] Such as Figure 2 and Figure 6 shown, in the worm and worm gear mechanism, the teeth on the outer peripheral surface of the worm 131 (i.e., the worm teeth 1311) are helical teeth. The worm wheel 132 can be regarded as a spiral gear. The worm teeth 1311 mesh with the worm teeth 1321. When the worm 131 rotates, the worm wheel 132 will rotate accordingly; conversely, when the worm wheel 132 rotates, the worm 131 will also rotate accordingly. In the embodiments shown in the present disclosure, the worm 131 is used as the driving member, and the worm wheel 132 is used as the driven member. The worm 131 drives the worm wheel 132 to rotate to realize the up-and-down reciprocating motion of the stirring blade 300.

[0109] The eccentrically arranged eccentric post 1323 can drive the stirring shaft assembly 110 to move up and down reciprocally during the rotation of the worm wheel 132, thereby realizing the up-and-down reciprocating motion of the stirring blade 300.

[0110] Figure 2 、 Figure 6 and Figure 9 Exemplarily shown is a partial structural schematic diagram of the stirring structure when the eccentric column 1323 drives the stirring shaft assembly 110 to the upper limit position of the stroke.

[0111] Figure 10 Exemplarily shown is a partial structural schematic diagram of the stirring structure when the eccentric column 1323 drives the stirring shaft assembly 110 to the lower limit position of the stroke.

[0112] When the worm gear 132 rotates one full circle, the stirring shaft assembly 110 moves up and down in a cycle. That is to say, when the worm gear 132 rotates half a circle, the eccentric column 1323 can drive the stirring shaft assembly 110 to move from the lower limit position of the stroke to the upper limit position of the stroke. At this time, the stirring blade 300 moves from bottom to top. After the worm gear 132 continues to rotate half a circle, the eccentric column 1323 can drive the stirring shaft assembly 110 to move back from the upper limit position of the stroke to the lower limit position of the stroke. At this time, the stirring blade 300 moves from top to bottom, and so on.

[0113] As Figure 1 and Figure 6 shown, the central position of the worm gear 132 has a shaft hole 1324 for the fixing shaft to pass through, and the fixing shaft can be fixed inside the mixer to ensure the stability of the rotation of the worm gear 132.

[0114] Without limitation, the worm gear 132, the worm gear teeth 1321 and the eccentric column 1323 are integral components. For example: The worm gear teeth 1321 and the eccentric column 1323 can be formed on the worm gear 132 by an integral molding method.

[0115] According to some alternative embodiments, as Figure 1 and Figure 4 shown, the worm and worm gear mechanism further includes: a worm wheel 133, the worm wheel 133 is connected to the worm 131 and is connected to the first reduction assembly 120, and the worm 131 can rotate under the action of the worm wheel 133.

[0116] The worm wheel 133 is placed in a substantially horizontal direction, the worm 131 is placed in a substantially vertical direction, the worm wheel 133 and the worm 131 rotate simultaneously, and the two can be connected by a shaft member as Figure 1 shown. Among them, the shaft member passes through the center of the worm wheel 133 and the center of the worm 131.

[0117] The worm wheel 133 is used to transmit the driving force and has a speed reduction effect. For example: If the worm wheel 133 is connected to the first reduction assembly 120 by a belt, the transmission ratio between the worm wheel 133 and the first reduction assembly 120 is different due to the different diameters of the worm wheel 133.

[0118] Optionally, in the embodiments shown in the present disclosure, the worm wheel 133 is a worm gear, and the worm wheel 133 meshes with the first reduction assembly 120. The number of teeth of the worm wheel 133 is different, and the transmission ratio between the worm wheel 133 and the first reduction assembly 120 is different.

[0119] In the embodiments shown in the present disclosure, as Figure 1 and Figure 4 shown, the first reduction assembly 120 is a two-stage reduction mechanism. Among them, the first-stage reduction mechanism of the two-stage reduction mechanism is connected to the motor assembly 140, and the last-stage reduction mechanism 122 (also the two-stage reduction mechanism) of the two-stage reduction mechanism is respectively connected to the rotating member 150 and the second reduction assembly 130.

[0120] It can be understood that the first reduction assembly 120 may only have a one-stage reduction mechanism, and this one-stage reduction mechanism is both the first-stage reduction mechanism and the last-stage reduction mechanism 122.

[0121] Figure 1 and Figure 2 The last-stage reduction mechanism 122 is exemplarily shown. The last-stage reduction mechanism 122 includes a gear connected to the upper-stage reduction mechanism and a columnar wheel connected to the center of the gear. The bottom of the columnar wheel has teeth meshing with the worm gear.

[0122] In addition, the first reduction assembly 120 may also be a reduction mechanism with more than two stages. Among them, the first-stage reduction mechanism of the first reduction assembly 120 is connected to the motor assembly 140, and the last-stage reduction mechanism 122 of the first reduction assembly 120 is respectively connected to the rotating member 150 and the second reduction assembly 130.

[0123] According to some alternative embodiments, as Figure 2 shown, the motor assembly 140 includes an output shaft 142 and an output shaft gear 141 connected to the output shaft 142; as Figure 1 and Figure 5 shown, the first-stage reduction mechanism includes: a double-layer gear 121. The first-layer gear 1211 of the double-layer gear 121 meshes with the output shaft gear 141 of the motor assembly 140, and the second-layer gear 1212 of the double-layer gear 121 meshes with the second-stage reduction mechanism of the first reduction assembly 120; among them, the diameter of the second-layer gear 1212 is smaller than that of the first-layer gear 1211, and the number of teeth of the second-layer gear 1212 is smaller than that of the first-layer gear 1211. The double-layer gear 121 can achieve speed reduction, and different angular velocities result in different output rotational speeds. In addition, after using the double-layer gear 121, the second reduction assembly 130 (i.e., Figure 1 the worm wheel 133 therein) does not need to mesh with the first-layer gear 1211 with a larger diameter, and only needs to mesh with the second-layer gear 1212 with a smaller diameter, which can improve the compactness of the stirring structure.

[0124] According to some optional embodiments, the transmission ratio between the motor assembly 140 and the first-stage reduction mechanism is 2:1 (i.e., the first-stage transmission ratio), the transmission ratio between the first-stage reduction mechanism and the final-stage reduction mechanism is 3:1 (i.e., the second-stage transmission ratio), and the transmission ratio between the final-stage reduction structure and the rotating member 150 is 1:2 (i.e., the third-stage transmission ratio); furthermore, the rotation speed of the stirring shaft assembly 110 (which is also the rotation speed of the stirring blade 300) is 1 / 3 of the output rotation speed of the motor assembly 140 (the first-stage transmission ratio * the second-stage transmission ratio * the third-stage transmission ratio).

[0125] The transmission ratio between the final-stage reduction mechanism and the worm gear in the worm and worm gear structure is 4:1 (i.e., the fourth-stage transmission ratio), and the transmission ratio between the worm 131 and the worm wheel 132 is 20:1 (i.e., the fifth-stage transmission ratio). Furthermore, the rotation speed of the worm wheel 132 is 1 / 480 of the output rotation speed of the motor assembly 140 (the first-stage transmission ratio * the second-stage transmission ratio * the fourth-stage transmission ratio * the fifth-stage transmission ratio).

[0126] In a specific example, the rotation speed of the motor assembly 140 is 9600 r / min, the rotation speed of the stirring blade 300 is 3200 r / min, the rotation speed of the worm wheel 132 is 20 r / min, and the time for the worm wheel 132 to drive the stirring shaft assembly 110 to move up and down once (i.e., a cycle in which the stirring shaft assembly 110 moves from the lower limit position of the stroke to the upper limit position of the stroke and then returns from the upper limit position of the stroke to the lower limit position of the stroke) is 3 s. The eccentric column 1323 is 12 mm away from the axis (i.e., the center) of the worm wheel 132. When the worm wheel 132 rotates one week, the displacement of the entire stroke of the stirring shaft assembly 110 is 24 mm ± 1 mm. Among them, the distance of the entire stroke refers to the distance between the upper limit and the lower limit of the stroke.

[0127] In addition, according to needs, the rotation speed of the stirring blade 300 can be adjusted to 13000 r / min or other rotation speeds.

[0128] According to some optional embodiments, as Figure 1 、 Figure 4 and Figure 11 shown, the stirring shaft assembly 110 includes: a shaft assembly and a fixing pin 113 connected to the shaft assembly, and the rotating member 150 includes: a sleeve 151 and a transmission tooth 152 located on the outer wall of the sleeve 151; the transmission tooth 152 is connected to the second reduction assembly 130; the sleeve 151 is sleeved outside the shaft assembly and has an avoidance groove 153 arranged along the axial direction of the stirring shaft assembly 110, and the fixing pin 113 passes through the avoidance groove 153.

[0129] As Figure 2As shown, the first groove wall 1531 of the avoidance groove 153 can abut against the fixing pin 113 to limit the further movement of the stirring shaft assembly 110 in the first direction. The second groove wall 1532 of the avoidance groove 153 can abut against the fixing pin 113 to limit the further movement of the stirring shaft assembly 110 in the second direction; wherein, the second direction is opposite to the first direction.

[0130] The fixing pin 113 is used to achieve the circumferential fixation of the stirring shaft assembly 110 and the rotating member 150, while the avoidance groove 153 is used to achieve the axial movement of the stirring shaft assembly 110 relative to the rotating member 150. Among them, the shaft assembly is used to fix the stirring blade 300. When the stirring blade 300 moves up and down, the fixing pin 113 moves in the avoidance groove 153. When the rotating member 150 rotates, the rotating member 150 will be blocked by the fixing pin 113, and then the rotational force is transmitted to the fixing pin 113 to achieve the synchronous rotation of the fixing pin 113 and the shaft assembly.

[0131] The rotating member 150 and the shaft assembly are coaxial.

[0132] Exemplarily, the first direction can be the direction upward along the axis of the shaft assembly, and the second direction is the direction downward along the axis of the shaft assembly, and both are substantially vertical directions.

[0133] As Figure 1 shown, the avoidance groove 153 is arranged in a long strip shape along the axis of the shaft assembly. The groove walls at both opposite ends of the avoidance groove 153 in the axial direction have a limiting effect. Among them, the first groove wall 1531 is located at the top of the avoidance groove 153, and the second groove wall 1532 is located at the bottom of the avoidance groove 153.

[0134] According to some optional embodiments, in combination with Figure 1 and Figure 4 shown, the number of the fixing pins 113 is two, and the lengths of the two fixing pins 113 extending out of the avoidance groove 153 are equal. The two fixing pins 113 are distributed at symmetric positions in the radial direction of the shaft assembly.

[0135] The fixing pins 113 are symmetrically arranged in the radial direction of the shaft assembly, which can further ensure the stability of the rotation of the stirring shaft assembly 110.

[0136] In the embodiments not shown in the present disclosure, the number of the fixing pins 113 can also be three, four, five or even more.

[0137] The lengths of the two ends of the fixing pin 113 extending out of the avoidance groove 153 are the same. The stirring shaft gear (i.e., the shaft sleeve 360) only needs to be provided with two symmetric avoidance grooves 153 in the vertical direction, which is convenient for processing and beneficial to cost saving.

[0138] According to some optional embodiments, as Figure 6As shown in the figure, the shaft assembly includes: a stirring shaft 111, a connecting rod 112, a sliding bearing 114, and a rolling bearing 115. Among them, the stirring shaft 111 is used to connect the stirring blade 300; the connecting rod is respectively connected to the stirring shaft 111 and the eccentric column 1323 of the second reduction assembly 130. The sliding bearing 114 is connected to the stirring shaft 111 so that the stirring shaft 111 can axially move relative to the sleeve 151 along the axial direction of the stirring shaft assembly 110; the rolling bearing is respectively connected to the stirring shaft 111 and the connecting rod 112 so that the stirring shaft 111 can rotate relative to the connecting rod 112.

[0139] As Figure 6 shown, a gearbox 160 can be provided outside the stirring structure. The gearbox 160 is jointly formed by a gearbox upper cover 161, a gearbox lower cover 162, and a gearbox cover plate 163. Among them, the gearbox lower cover 162 is located between the gearbox cover plate 163 and the gearbox upper cover 161. Except for part of the stirring shaft 111, the rest of the stirring structure can be located inside the gearbox 160. The space inside the gearbox 160 can be at least divided into a first chamber 164 and a second chamber 165. The worm and worm gear mechanism can be at least partially located inside the first chamber 164, and the rotating member 150 is at least partially located inside the second chamber 165. The worm 131 is rotatably connected to the gearbox cover plate 163.

[0140] The sliding bearing 114 can be installed in the gearbox 160 and fixed on the wall of the first chamber 164. The sliding bearing 114 is located outside the first chamber 164, and the rolling bearing 115 is located inside the first chamber 164, and the rolling bearing 115 is located at the connection between the stirring shaft 111 and the connecting rod 112.

[0141] Both the sliding bearing 114 and the rolling bearing 115 can ensure the stability of the stirring shaft 111 during rotation and reduce the wear between the stirring shaft 111 and other components (including the connecting rod 112 and the wall of the first chamber 164).

[0142] Exemplarily, the connecting rod 112 and the stirring blade 300 are respectively located at opposite ends of the stirring shaft 111, and both the sliding bearing 114 and the rolling bearing 115 are located between the connecting rod 112 and the stirring blade 300.

[0143] Exemplarily, as Figure 1 , Figure 2 and Figure 11As shown, the connecting rod 112 has a slot 1121 into which the eccentric post 1323 is inserted. When the worm gear 132 rotates, it drives the eccentric post 1323 to rotate. At the same time, the eccentric post 1323 also has a displacement in the axial direction. Under the action of the eccentric post 1323, the connecting rod 112 drives the stirring shaft 111 to perform a linear motion in the axial direction. Under the action of the rolling bearing 115, the connecting rod 112 and the stirring shaft 111 can rotate relative to each other. When the stirring shaft 111 rotates under the action of the rotation output by the first reduction assembly 120, the connecting rod 112 does not rotate. Thus, the self-rotation and up-and-down movement of the stirring shaft 111 are realized. As Figures 7 to 10 As shown, the embodiment of the present disclosure also provides a blender, which includes: a housing 170, a stirring blade 300, and the stirring structure described in any one of the above embodiments. The stirring structure is located inside the housing 170. The housing 170 has a first through hole for allowing a part of the stirring shaft assembly 110 to extend outside the housing 170; the stirring blade 300 is connected to the stirring shaft assembly 110 and is located outside the housing 170.

[0144] In the stirring structure, except for a part of the stirring shaft 111, the rest are located inside the housing 170.

[0145] The blender in the embodiment of the present disclosure refers to a cooking machine with a stirring function, including but not limited to a food blender.

[0146] Optionally, the stirring blade 300 is detachably connected to the stirring shaft assembly 110, or the stirring blade 300 is non-detachably connected to the stirring shaft assembly 110. Relatively speaking, the detachable stirring blade 300 can be detached after stirring, which is convenient for cleaning the stirring blade 300.

[0147] Figures 13 to 15 Exemplarily, the stirring blade 300 detachably connected to the stirring shaft assembly 110 is shown, where Figure 12 and Figure 13 shown is the matching stirring shaft assembly 110.

[0148] According to some optional embodiments, as Figure 12 shown, the outer peripheral surface of the stirring shaft 111 of the stirring shaft assembly 110 has a card slot 116; as Figures 13 to 15 shown, the stirring blade 300 includes a tool holder 310, a blade 320, an elastic member 340, and a fastener 350. The blade 320 is connected to the outer peripheral surface of the tool holder 310, and the elastic member 340 is respectively connected to the tool holder 310 and the fastener 350; when the stirring shaft 111 and the tool holder 310 are assembled in place, under the elastic force provided by the elastic member 340, the fastener 350 is inserted into the card slot 116.

[0149] The tool holder 310 serves as a carrier for installing the blade 320, the elastic member 340, and the fastener 350.

[0150] The elastic member 340 can be a compression spring, or a torsion spring, a tension spring, a spring plate or other structures.

[0151] The fastening member 350 can be a steel ball, but is not limited thereto.

[0152] Figure 13 Exemplarily, three blades 320 are shown. It can be understood that the number of blades 320 can also be two, four, five or more.

[0153] Exemplarily, as Figure 14 and Figure 15 shown, the tool holder 310 is a substantially conical cylindrical member.

[0154] According to some alternative embodiments, as Figure 14 and Figure 15 shown, the tool holder 310 includes: a tool holder main body 311 and a bushing 360. The tool holder main body 311 is a hollow member. One end of the hollow member facing the machine housing 170 has an opening. The elastic member 340 is connected to the tool holder main body 311. The bushing 360 is located inside the tool holder main body 311 and has a second through hole 361 for the fastening member 350 to pass through. The bushing 360 is sleeved on the stirring shaft 111 and can rotate with the rotation of the stirring shaft 111.

[0155] The fastening member 350 and the elastic member 340 can be respectively arranged around the second through hole 361. The bushing 360 and the stirring shaft 111 are circumferentially fixed. For example: the stirring shaft 111 and the bushing 360 adopt a flat position fit, so that the bushing 360 and the stirring shaft 111 can rotate synchronously.

[0156] Combined with Figure 1 、 Figure 9 and Figure 10 shown, the worm wheel 133 mainly changes the direction of the circumferential rotation, changes the circumferential movement into a radial movement through the helical teeth (i.e., the worm teeth 1311) at the lower end of the worm 131. The circumferential movement of the helical teeth drives the circumferential movement of the worm gear 132 in the radial direction. The circumferential rotation of the worm gear 132 causes the eccentric column 1323 to horizontally slide in the slot 1121, driving the up and down reciprocating movement of the connecting rod 112. The up and down reciprocating movement of the connecting rod 112 drives the fixing pin 113 of the stirring shaft 111 to move up and down reciprocally in the avoidance groove 153 of the rotating member 150.

[0157] Driven by the stirring shaft 111, the stirring blade 300 can rotate circumferentially and move up and down.

[0158] The up and down rotational movement of the blade 320 can make the stirring more uniform and the cutting efficiency higher.

[0159] As Figure 14As shown, the stirring blade 300 further includes a tool rest cover plate 330. The tool rest cover plate 330 is located at the top of the tool rest body 311 and jointly forms a chamber with the top wall of the tool rest body 311 to accommodate the fastener 350, the elastic member 340, and a part of the bushing 360. The stirring shaft 111 and the remaining part of the bushing 360 are both located in the hollow space below the top wall of the tool rest body 311.

[0160] According to some alternative embodiments, as Figure 7 and Figure 8 shown, the mixer further includes: a mixing cup 180 and a mixing cover 190. The mixing cup 180 is connected to the housing 170 and has a receiving space 181 for accommodating the material to be stirred. The bottom of the mixing cup 180 has a third through hole for the stirring shaft assembly 110 to pass through; the stirring blade 300 is located in the receiving space 181; the top of the mixing cup 180 is open; the mixing cover 190 is detachably connected to the mixing cup 180 and can cover the top opening.

[0161] The food to be stirred can be placed in the receiving space 181. The stirring blade 300 stirs in the receiving space 181, and the mixing cover 190 is used to seal the receiving space 181 to reduce the food spilling out of the receiving space 181 during the stirring process.

[0162] In the embodiments shown in the present disclosure, the housing 170 serves as a base to carry the mixing cup 180, and the mixing cup 180, the housing 170, and the stirring shaft 111 are generally coaxially distributed.

[0163] As Figure 7 shown, the housing 170 further has a power switch 171 on the outside. The power switch 171 can be a switch button and is used to turn on or off the machine.

[0164] As Figure 8 shown, the housing 170 further has a housing cover plate 172 on the top. The housing cover plate 172 has a fourth through hole communicating with the first through hole on the top of the housing 170. The stirring shaft 111 passes through the first through hole and the second through hole in sequence and then enters the mixing cup 180. The housing cover plate 172 at least seals the internal space of the housing 170.

[0165] The mixing cup 180 can be installed on the housing 170 non-removably or removably.

[0166] As Figure 8 shown, the housing 170 of the mixer further has a circuit board 200 inside, and the circuit board 200 is at least used to control the rotation of the stirring structure.

[0167] On the premise of not conflicting, different embodiments or different technical features in the present disclosure can be combined arbitrarily to form new embodiments.

[0168] It should be understood that the above embodiments are all exemplary and do not cover all possible implementation manners included in the claims. Without departing from the scope of the present disclosure, various deformations and changes can also be made on the basis of the above embodiments. Similarly, various technical features of the above embodiments can be arbitrarily combined to form additional embodiments of the embodiments of the present disclosure that may not be explicitly described. Therefore, the above embodiments only represent several implementation manners of the embodiments of the present disclosure and do not limit the protection scope of the patents of the embodiments of the present disclosure.

Claims

1. A stirring structure of a food processor, characterized in that: The stirring structure comprises: Rotating member (150); A stirring shaft assembly (110), used for connecting the stirring blade (300), the stirring shaft assembly (110) being capable of moving relative to the rotating member (150) along the axial direction of the stirring shaft assembly (110); a first reduction assembly (120) connected to the rotating member (150); the rotating member (150) can drive the stirring shaft assembly (110) to rotate under the action of the first reduction assembly (120); a second reduction assembly (130), wherein two ends of the second reduction assembly (130) are respectively connected to the stirring shaft assembly (110) and the first reduction assembly (120), the second reduction assembly (130) is capable of moving under the action of the first reduction assembly (120), and the stirring shaft assembly (110) is capable of moving along the axial direction of the stirring shaft assembly (110) under the action of the second reduction assembly (130); The motor assembly (140) is connected to the first reduction assembly (120) to drive the first reduction assembly (120) to move.

2. The stirring structure according to claim 1, characterized in that: The first reduction assembly (120) is a gear assembly.

3. The stirring structure according to claim 1, characterized in that: The second reduction assembly (130) is a conversion structure that converts the rotational motion output by the first reduction assembly (120) into linear motion for driving the stirring shaft assembly (110).

4. The stirring structure according to claim 3, characterized in that: The second reduction assembly (130) comprises a worm gear mechanism or a cam-connecting rod mechanism.

5. The stirring structure according to claim 1, characterized in that: The second reduction assembly (130) comprises a worm gear mechanism, wherein the worm gear mechanism comprises: A worm (131) having worm teeth (1311) distributed along its axial direction, wherein the worm (131) is distributed in parallel with the stirring shaft assembly (110); A worm wheel (132), comprising worm wheel teeth (1321) located on a circumferential surface of the worm wheel (132), and an eccentric column (1323) located on a side surface of the worm wheel (132), wherein the eccentric column (1323) is disposed eccentrically relative to the center of the worm wheel (132); The eccentric column (1323) is connected to the stirring shaft assembly (110).

6. The stirring structure according to claim 5, characterized in that: The stirring shaft assembly (110) has a slot (1121), the slot (1121) is in the shape of a long strip extending in the horizontal direction, and the eccentric column (1323) can be slidably inserted into the slot (1121).

7. The stirring structure according to claim 5, characterized in that: The worm gear mechanism further comprises: A worm wheel (133), the worm wheel (133) being connected to the worm (131) and connected to the first reduction assembly (120), the worm (131) being capable of rotating under the action of the worm wheel (133).

8. The stirring structure according to claim 7, characterized in that: The worm wheel (133) is a worm gear, and the worm wheel (133) is meshed with the first reduction assembly (120).

9. The stirring structure according to any one of claims 4 to 8, characterized in that: The first deceleration assembly (120) comprises at least one stage of deceleration mechanism; When the first reduction assembly (120) is a reduction mechanism with at least two stages, the first reduction assembly (120) has a first reduction assembly connected to the motor assembly (140), and the final reduction assembly (122) has a final reduction assembly connected to the rotating member (150) and the second reduction assembly (130), respectively.

10. The stirring structure according to claim 9, characterized in that: The motor assembly (140) comprises an output shaft (142) and an output shaft gear (141) connected to the output shaft (142); the first-stage reduction mechanism comprises: a double-layer gear (121), a first-layer gear (1211) of the double-layer gear (121) meshing with the output shaft gear (141) of the motor assembly (140), and a second-layer gear (1212) of the double-layer gear (121) meshing with the second-stage reduction mechanism of the first reduction assembly (120); wherein the number of teeth of the second-layer gear (1212) is less than the number of teeth of the first-layer gear (1211).

11. The stirring structure according to claim 9, characterized in that: The transmission ratio between the motor assembly (140) and the first-stage reduction mechanism is 2:1, the transmission ratio between the first-stage reduction mechanism and the final-stage reduction mechanism (122) is 3:1, and the transmission ratio between the final-stage reduction mechanism (122) and the rotating member (150) is 1:2; The worm gear mechanism comprises a worm wheel (132) and a worm (131); the transmission ratio between the final-stage reduction mechanism (122) and the worm gear mechanism is 4:1, and the transmission ratio between the worm (131) and the worm wheel (132) is 20:

1.

12. The stirring structure according to claim 1 or 2, characterized in that: The stirring shaft assembly (110) comprises: a shaft assembly and a fixing pin (113) connected to the shaft assembly; The rotating member (150) comprises: a sleeve (151) and a transmission tooth (152) located on the outer wall of the sleeve (151); the transmission tooth (152) is connected to the second reduction assembly (130); The sleeve (151) is sleeved outside the shaft assembly and has an avoidance groove (153) arranged along the axial direction of the stirring shaft assembly (110), and the fixing pin (113) passes through the avoidance groove (153); The first groove wall (1531) of the avoidance groove (153) can abut against the fixing pin (113) to limit the stirring shaft assembly (110) from continuing to move along the first direction; The second groove wall (1532) of the avoidance groove (153) can abut against the fixing pin (113) to limit the stirring shaft assembly (110) from continuing to move along a second direction; wherein the second direction is opposite to the first direction.

13. The stirring structure according to claim 12, characterized in that: The number of the fixing pins (113) is at least two, and the lengths of at least two fixing pins (113) extending out of the avoidance groove (153) are equal.

14. The stirring structure according to claim 12, characterized in that: The shaft assembly comprises: A stirring shaft (111), used for connecting the stirring blade (300); A connecting rod (112) connected to the stirring shaft (111) and the second speed reduction assembly (130) respectively; a sliding bearing (114) connected to the stirring shaft (111) so that the stirring shaft (111) can move relative to the sleeve (151) along the axial direction of the stirring shaft assembly (110); The rolling bearing (115) is respectively connected to the stirring shaft (111) and the connecting rod (112), so that the stirring shaft (111) can rotate relative to the connecting rod (112).

15. A mixer, characterized in that: The mixer comprises: Housing (170); The stirring structure according to any one of claims 1 to 14, wherein the stirring structure is located in the housing (170), the housing (170) has a first through hole, and the first through hole is used for allowing the stirring shaft assembly (110) to partially extend out of the housing (170); The stirring blade (300) is connected to the stirring shaft assembly (110) and is located outside the housing (170).

16. The mixer according to claim 15, characterized in that The stirring blade (300) is detachably connected to the stirring shaft assembly (110).

17. The mixer according to claim 16, characterized in that The outer peripheral surface of the stirring shaft (111) of the stirring shaft assembly (110) has a groove (116); The stirring knife (300) comprises a knife holder (310), a blade (320), an elastic member (340) and a clamping member (350); the blade (320) is connected to the outer peripheral surface of the knife holder (310), and the elastic member (340) is respectively connected to the knife holder (310) and the clamping member (350); When the stirring shaft (111) and the blade holder (310) are assembled in place, the clamping member (350) is inserted into the clamping slot (116) under the action of the elastic force provided by the elastic member (340).

18. The mixer according to claim 17, characterized in that The tool holder (310) comprises: A tool holder body (311), the tool holder body (311) being a hollow member, one end of the tool holder body (311) facing the housing (170) having an opening, and the elastic member (340) being connected to the tool holder body (311); The shaft sleeve (360) is located in the tool holder body (311) and has a second through hole (361) for the clamping piece (350) to pass through. The shaft sleeve (360) is sleeved on the stirring shaft (111) and can rotate along with the stirring shaft (111).

19. The mixer according to claim 15, characterized in that The mixer also includes: a stirring cup (180) connected to the housing (170) and having a storage space (181) for storing an object to be stirred; a third through hole is provided at the bottom of the stirring cup (180), the third through hole being used for allowing the stirring shaft assembly (110) to pass through; the stirring blade (300) is located in the storage space (181); and the top of the stirring cup (180) is open; The stirring cover (190) is detachably connected to the stirring cup (180) and is capable of covering the top opening.

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