Wall-breaking eight-blade knife

Abstract

The invention relates to the technical field of food processers, and discloses a wall-breaking eight-blade knife which comprises a stirring knife assembly and a heating disc stud. The stirring cutter assembly comprises an upper two-blade cutter assembly, a four-blade cutter assembly, a shaft sleeve assembly, a lower two-blade cutter assembly and a fixed cutter shaft assembly; the fixed cutter shaft assembly comprises a first fixed sleeve and a second fixed sleeve, and the first fixed sleeve and the second fixed sleeve are both fixedly connected to the heating disc stud. The upper two-blade cutter assembly comprises a two-blade cutter and a rivet joint. According to the invention, the motor can drive the four-blade cutter assembly and the lower two-blade cutter assembly to move up and down during driving by virtue of the elastic force difference of the upper and lower shaft sleeve springs in the shaft sleeve assembly and the limiting effect of the fixed cutter shaft assembly. The blades moving up and down can push heavy food materials sinking to the bottom to turn upwards, the problem that the food materials at the bottom are deposited due to the fact that a traditional pure horizontal rotating blade depends on centrifugal force is solved, and it is guaranteed that the food materials are fully mixed in the cup.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food processors, and in particular to a wall-breaking eight-blade knife. BACKGROUND

[0002] Currently, small household food processors have become common equipment for daily food processing in the family, and the performance of the core working component, the stirring knife group, directly determines the food crushing efficiency, mixing uniformity and use experience. The mainstream food processors on the market generally use a six-blade stirring knife structure. The knife group is usually composed of a top double-blade stirring knife and a bottom four-blade stirring knife. The bottom four-blade stirring knife is further divided into symmetrical sharp knives and sawtooth knives. The sharp knives and sawtooth knives are designed in one piece and arranged at a specific angle in the same plane, aiming to achieve food processing through functional division: the sawtooth knives crush hard food materials such as nuts and ice cubes using the sawtooth engagement feature, and the sharp knives quickly cut tough food materials such as meat and fibrous vegetables, and the angle distribution in the plane attempts to form a certain three-dimensional longitudinal crushing effect to improve the basic crushing efficiency.

[0003] The double-blade stirring knife and the four-blade stirring knife are fixed on the shaft of the traditional six-blade stirring knife. The entire knife group is fixed on the heating disc of the food processor through riveting technology together with the shaft. This traditional structure and assembly method can cause insufficient stirring efficiency and food uniformity, and can easily leave residue and small particles. The traditional six-blade stirring knife relies on pure horizontal rotation trajectory operation and only moves food materials through centrifugal force, which has obvious blind areas of layered processing: liquid or light food materials (juice, soft pulp) in the upper part of the food processor cup are easily suspended for a long time and cannot fully contact the knife group, making it difficult to participate in deep mixing; heavy food materials (such as nut fragments and fiber residues) at the bottom of the cup are easily deposited due to gravity and do not fully contact the rotating blade, resulting in the bottom food materials not being effectively cut and stirred. SUMMARY

[0004] In order to make up for the above shortcomings, the present application provides a wall-breaking eight-blade knife, which aims to improve the problem that the existing stirring knife is fixed on the heating disc by riveting, the cooperation precision of the shaft and the knife group is low, and long-term rotation can easily cause deviation and jamming.

[0005] In order to achieve the above object, the application provides the following technical scheme: A broken wall eight-leaf knife, comprising a stirring knife assembly and a heating disc stud; the stirring knife assembly comprises an upper two-leaf knife assembly, a four-leaf knife assembly, a shaft sleeve assembly, a lower two-leaf knife assembly and a fixed knife shaft assembly; the fixed knife shaft assembly comprises a first fixed sleeve and a second fixed sleeve, both of which are fixedly connected to the heating disc stud; the upper two-leaf knife assembly comprises a two-leaf knife and a rivet joint, which is fixedly installed on the heating disc stud through the rivet joint; the four-leaf knife assembly comprises a first sawtooth knife, a first sharp knife and a fixed knife shaft through hole, which is arranged in the middle of the four-leaf knife assembly; the shaft sleeve assembly comprises an upper shaft sleeve assembly and a lower shaft sleeve assembly, the upper shaft sleeve assembly is sleeved outside the first fixed sleeve, and the lower shaft sleeve assembly is sleeved outside the second fixed sleeve; the upper shaft sleeve assembly comprises an upper shaft sleeve, a first upper through hole, a first lower through hole and an upper shaft sleeve assembly spring; the lower shaft sleeve assembly comprises a lower shaft sleeve, a second upper through hole, a second lower through hole and a lower shaft sleeve assembly spring, the elastic force of the lower shaft sleeve assembly spring is smaller than that of the upper shaft sleeve assembly spring; the lower two-leaf knife assembly is arranged on one side of the lower shaft sleeve.

[0006] Further, a water drop type hole is arranged on the first sharp knife, which is symmetrically distributed along the first sharp knife, the diameter of the water drop type hole is ≤2mm, the hole diameter of the water drop type hole is not more than 1 / 3 of the width of the first sharp knife, and the number of the water drop type holes arranged on each first sharp knife is not more than 3.

[0007] Further, the upper shaft sleeve assembly and the lower shaft sleeve assembly are symmetrically structured, the upper shaft sleeve assembly spring is internally installed in the upper shaft sleeve assembly, and the lower shaft sleeve assembly spring is internally installed in the lower shaft sleeve assembly.

[0008] Further, the first lower through hole plays an axial limiting role on the upper shaft sleeve assembly spring, and the second upper through hole plays an axial limiting role on the lower shaft sleeve assembly spring.

[0009] Further, the four-leaf knife assembly is an integral stamping structure, the fixed knife shaft through hole is in a closed U shape, the first sawtooth knife is symmetrically distributed around the four-leaf knife assembly, and the two-leaf knife is symmetrically distributed.

[0010] Further, the first sharp knife is arranged on one side of the first sawtooth knife and symmetrically distributed at a certain angle, the first lower through hole is in a closed U shape and correspondingly matched with the fixed knife shaft through hole, and the second upper through hole is in a closed U shape and correspondingly matched with the fixed knife shaft through hole.

[0011] Further, the lower two-blade assembly is symmetrically distributed, and the downward bending angle is set to 10-15°, the upper two-blade assembly, four-blade assembly and lower two-blade assembly obtain rotary power through the heating disc stud, and the four-blade assembly and lower two-blade assembly realize upward and downward movement through the spring force difference of the upper shaft sleeve assembly spring and lower shaft sleeve assembly spring.

[0012] Further, when the motor speed decreases due to load increase, the spring force of the upper shaft sleeve assembly spring is released, the four-blade assembly and lower two-blade assembly are pushed to reset downward, and the continuous upward and downward reciprocating movement of the four-blade assembly and lower two-blade assembly is realized.

[0013] Further, the upper shaft sleeve and the first fixed sleeve are in sliding fit, and the lower shaft sleeve and the second fixed sleeve are in sliding fit, so as to provide guidance for the upward and downward movement of the four-blade assembly and lower two-blade assembly.

[0014] Further, the first upper through hole is matched with the fixed blade shaft assembly, so as to realize the connection and positioning of the upper shaft sleeve assembly and the fixed blade shaft assembly.

[0015] The application has the following beneficial effects:

[0016] 1. In the application, the upward and downward movement of the four-blade assembly and lower two-blade assembly is realized by the spring force difference of the upper and lower shaft sleeve springs in the shaft sleeve assembly and the limiting action of the fixed blade shaft assembly when the motor is driven. The upward and downward movement of the blade can push the heavier food materials on the bottom upward, avoid the deposition of the food materials on the bottom caused by the dependence on centrifugal force of the traditional pure horizontal rotating blade, and ensure that the food materials are fully mixed in the cup.

[0017] 2. In the application, the water drop type holes symmetrically distributed on the first sharp blade guide the food materials to form local turbulence when the blade rotates, prevent the food materials from accumulating on the surface of the blade, and further refine the food material particles through the secondary cutting of the food materials passing through the hole edge, so that the food materials have more dense taste.

[0018] 3. In the application, the water drop type hole effectively reduces the weight of the first sharp blade, directly reduces the motor driving load, and the four-blade assembly adopts an integrated stamping structure, so that the overall weight is lighter and the structure is stable, the additional inertia loss is avoided, and high-efficiency crushing can be realized without relying on improving the motor driving efficiency, thereby reducing the high-frequency noise generated by high-speed rotation of the motor from the source.

[0019] 4. In the application, the upper shaft sleeve assembly spring and lower shaft sleeve assembly spring of the shaft sleeve assembly play a buffering role when the blade assembly moves upward and downward, disperse the impact of food material cutting on the blade assembly and motor, avoid continuous high-frequency friction noise, reduce the loss when the motor starts and stops and the load changes, and prolong the service life of the motor.

[0020] 5、The first fixing sleeve and the second fixing sleeve of the fixed knife shaft assembly provide sliding guidance for the shaft sleeve assembly, the first lower through hole of the upper shaft sleeve assembly and the second upper through hole of the lower shaft sleeve assembly are precisely matched with the fixed knife shaft through hole of the four-leaf knife assembly, power synchronous transmission is realized, the upper and lower shaft sleeve assembly spring axial position is limited, deviation or jamming of the knife group during movement is avoided, and long-term operation stability is ensured.

[0021] 6、The design realizes performance improvement through optimization of the knife group structure and process, the control panel program of the food processor does not need to be changed, the traditional stirring knife group can be directly replaced, the installation size and power system of the existing small household appliance food processor are adapted, the upgrading cost of enterprises is reduced, and the application value in the market is high.

[0022] 7、The first sawtooth knife and the first sharp knife of the four-leaf knife assembly have clear division of labor, cooperate with the three-dimensional stirring of the upper and lower movement, can efficiently process various texture food materials such as nuts, ice blocks, meat and fiber vegetables, solve the problem that the traditional knife group is suitable for single food material, meet the diversified cooking needs of users, and improve the comprehensive use value of the food processor. DETAILED DESCRIPTION

[0023] Figure 1 A schematic diagram of the main structure of the broken wall eight-leaf knife is provided;

[0024] Figure 2 A schematic diagram of the assembly structure of the broken wall eight-leaf knife is provided;

[0025] Figure 3 A schematic diagram of the upper two-leaf knife assembly structure of the broken wall eight-leaf knife is provided;

[0026] Figure 4 A schematic diagram of the four-leaf knife assembly structure of the broken wall eight-leaf knife is provided;

[0027] Figure 5 A schematic diagram of the spring structure of the upper shaft sleeve assembly of the broken wall eight-leaf knife is provided;

[0028] Figure 6 A schematic diagram of the first lower through hole structure of the broken wall eight-leaf knife is provided;

[0029] Figure 7 A schematic diagram of the upper shaft sleeve structure of the broken wall eight-leaf knife is provided;

[0030] Figure 8 A schematic diagram of the lower two-leaf knife assembly structure of the broken wall eight-leaf knife is provided;

[0031] Figure 9 A schematic diagram of the second lower through hole structure of the broken wall eight-leaf knife is provided;

[0032] Figure 10 A broken wall eight-blade lower shaft sleeve assembly spring structure schematic diagram is proposed for the present application;

[0033] Figure 11 A broken wall eight-blade lower two-blade assembly cross-sectional schematic diagram is proposed for the present application;

[0034] Figure 12 A broken wall eight-blade fixed blade shaft assembly structure schematic diagram is proposed for the present application;

[0035] Figure 13 A broken wall eight-blade heating disc stud structure schematic diagram is proposed for the present application;

[0036] Figure 14 A broken wall eight-blade lower shaft sleeve structure schematic diagram is proposed for the present application.

[0037] Legend:

[0038] 1, stirring blade assembly; 2, upper two-blade assembly; 21, two-blade; 22, rivet joint; 3, four-blade assembly; 31, first sawtooth blade; 32, first sharp blade; 321, water droplet type hole; 33, fixed blade shaft through hole; 4, shaft sleeve assembly; 41, upper shaft sleeve assembly; 411, upper shaft sleeve; 412, first upper through hole; 413, first lower through hole; 414, upper shaft sleeve assembly spring; 42, lower shaft sleeve assembly; 421, lower shaft sleeve; 422, second upper through hole; 423, second lower through hole; 424, lower shaft sleeve assembly spring; 5, lower two-blade assembly; 6, fixed blade shaft assembly; 61, first fixed sleeve; 62, second fixed sleeve; 7, heating disc stud. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0040] Reference Figure 1 - Figure 14In one embodiment of the present application, a broken wall eight-blade knife includes a stirring knife assembly 1 and a heating disc stud 7. The stirring knife assembly 1 comprises an upper two-blade assembly 2, a four-blade assembly 3, a shaft sleeve assembly 4, a lower two-blade assembly 5, and a fixed knife shaft assembly 6. The fixed knife shaft assembly 6 includes a first fixed sleeve 61 and a second fixed sleeve 62, both of which are fixedly connected to the heating disc stud 7. The upper two-blade assembly 2 includes two-blade 21 and rivet head 22, and is fixedly installed on the heating disc stud 7 through the rivet head 22, with the two-blade 21 being symmetrically distributed. The four-blade assembly 3 is an integrated stamping structure, which includes first sawtooth blade 31, first sharp blade 32, and fixed knife shaft through hole 33. The fixed knife shaft through hole 33 is in a closed U shape and is provided in the middle of the four-blade assembly 3. The first sawtooth blade 31 is symmetrically distributed around the four-blade assembly 3. The first sharp blade 32 is provided on one side of the first sawtooth blade 31 and is symmetrically distributed at a certain angle. The shaft sleeve assembly 4 includes upper shaft sleeve assembly 41 and lower shaft sleeve assembly 42. The upper shaft sleeve assembly 41 is sleeved outside the first fixed sleeve 61, and the lower shaft sleeve assembly 42 is sleeved outside the second fixed sleeve 62. The upper shaft sleeve assembly 41 includes upper shaft sleeve 411, first upper through hole 412, first lower through hole 413, and upper shaft sleeve assembly spring 414. The first lower through hole 413 is in a closed U shape and corresponds to the fixed knife shaft through hole 33. The lower shaft sleeve assembly 42 includes lower shaft sleeve 421, second upper through hole 422, second lower through hole 423, and lower shaft sleeve assembly spring 424. The second upper through hole 422 is in a closed U shape and corresponds to the fixed knife shaft through hole 33. The elastic force of the lower shaft sleeve assembly spring 424 is smaller than that of the upper shaft sleeve assembly spring 414. The lower two-blade assembly 5 is symmetrically distributed, with a downward bending angle of 10°-15°. The lower two-blade assembly 5 is provided on one side of the lower shaft sleeve 421. The upper two-blade assembly 2, the four-blade assembly 3, and the lower two-blade assembly 5 obtain rotary power through the heating disc stud 7. The four-blade assembly 3 and the lower two-blade assembly 5 realize up-down movement through the difference in elastic force of the upper shaft sleeve assembly spring 414 and the lower shaft sleeve assembly spring 424.

[0041] Specifically, the stirring knife assembly 1 is a highly integrated multifunctional component combination that carefully integrates the upper two-blade assembly 2, the four-blade assembly 3, the shaft sleeve assembly 4, the lower two-blade assembly 5, and the fixed knife shaft assembly 6. These components work together through precise design and coordination, with the heating disc stud 7 as the core transmission and fixed reference point. The fixed knife shaft assembly 6 is composed of the first fixed sleeve 61 and the second fixed sleeve 62, which are firmly fixed on the heating disc stud 7, providing stable and precise up-down movement guidance and limiting function for the shaft sleeve assembly 4, ensuring smooth operation of the entire stirring system.

[0042] The upper two-blade assembly 2 is rigidly connected with the heating disc stud 7 through the rivet joint 22, ensuring its stability and durability during high-speed rotation, while the four-blade assembly 3 and the lower two-blade assembly 5 are linked with the fixed knife shaft assembly 6 through the precise cooperation of the shaft sleeve assembly 4, realizing linkage with the heating disc stud 7. When the motor starts, power is rapidly and directly transmitted to the heating disc stud 7, first driving the upper two-blade assembly 2 fixed thereto to rotate synchronously. The two-blade 21 of the upper two-blade assembly 2 is symmetrically distributed, and when rotating, it performs preliminary and efficient cutting and stirring of large and light food materials such as meat and soft fruits and vegetables on the upper part of the food processor cup, rapidly dispersing the food materials to avoid suspension, and significantly reducing the load of the initial cutting of the lower four-blade assembly 3, thereby improving the overall working efficiency.

[0043] At the same time, power is transmitted synchronously and efficiently to the four-blade assembly 3 and the lower two-blade assembly 5 through the precise transmission cooperation of the fixed knife shaft assembly 6 and the shaft sleeve assembly 4, enabling the two assemblies to obtain strong rotating power. The four-blade assembly 3 adopts an integrated stamping structure, with the first serrated knife 31 and the first sharp knife 32 symmetrically distributed around the central fixed knife shaft through hole 33. The first serrated knife 31 utilizes its unique serrated engagement characteristics to efficiently and thoroughly crush hard food materials such as nuts and ice in the middle of the cup, effectively preventing blade slip. The first sharp knife 32 is symmetrically distributed at a specific angle, and with its sharp blade, it can easily cut tough food materials such as meat and fibrous vegetables, avoiding the problem of food entanglement. In addition, the first sharp knife 32 is also symmetrically distributed with carefully designed water droplet-shaped holes 321, with a diameter strictly controlled within 2 mm and a number not exceeding 3 per knife, and a hole diameter not exceeding 1 / 3 of the blade width. These holes not only significantly reduce the weight of the blade, thereby reducing motor load and noise, but also optimize food material flow, form effective turbulence, avoid food material accumulation, and significantly enhance secondary cutting effect, thereby improving the delicacy of food processing.

[0044] The lower two-blade assembly 5 is symmetrically distributed and bent downward by 15° or less. This unique design enables it to accurately cut heavy food materials such as nut fragments and fiber residues that tend to accumulate at the bottom of the cup during rotation, effectively preventing residue accumulation at the bottom. On the other hand, the inclined cutting surface formed by the bending angle effectively pushes the food materials upward, perfectly matching the downward cutting force of the upper assembly, and creating a vertical three-dimensional stirring path of "upward cutting - middle crushing - downward pushing", completely avoiding the problem of food material stratification and ensuring uniform mixing of food materials.

[0045] The shaft sleeve assembly 4 is divided into an upper shaft sleeve assembly 41 and a lower shaft sleeve assembly 42, and the two are symmetrical in structure. The upper shaft sleeve assembly 41 comprises an upper shaft sleeve 411, a first upper through hole 412, a first lower through hole 413, and an upper shaft sleeve assembly spring 414. The lower shaft sleeve assembly 42 comprises a lower shaft sleeve 421, a second upper through hole 422, a second lower through hole 423, and a lower shaft sleeve assembly spring 424. The first lower through hole 413 of the upper shaft sleeve assembly 41 is in a closed U shape with the second upper through hole 422 of the lower shaft sleeve assembly 42, which is also in a closed U shape, and both are matched with the fixed blade shaft through hole 33 of the four-blade assembly 3, realizing the synchronous linkage of the shaft sleeve assembly 4 and the four-blade assembly 3. The upper shaft sleeve assembly 41 and the lower shaft sleeve assembly 42 are respectively sleeved outside the first fixed sleeve 61 and the second fixed sleeve 62 of the fixed blade shaft assembly 6, and can slide up and down along the sleeve. Because the elastic force of the lower shaft sleeve assembly spring 424 is smaller than that of the upper shaft sleeve assembly spring 414, when the motor starts, the rotational inertia makes the four-blade assembly 3 and the lower two-blade assembly 5 produce an upward movement trend, compressing the lower shaft sleeve assembly spring 424 and driving the assembly to move upwards. When the motor speed decreases due to increased load, the upper shaft sleeve assembly spring 414 releases the elastic force to push the assembly to move downwards and reset. Through the cycle of "upward inertia + downward elastic force", the continuous upward and downward movement of the four-blade assembly 3 and the lower two-blade assembly 5 is realized. This upward and downward movement not only further optimizes the uniformity of food mixing and avoids stratification, but also disturbs the liquid in the cup to form a complex fluid motion of "vortex + upward and downward circulation", improving the mixing efficiency. At the same time, combined with the weight reduction effect of the water droplet type hole 321, high-efficiency crushing can be realized without improving the motor driving efficiency, effectively reducing noise and motor loss, and ultimately making the food texture more dense.Through this "upward inertia + downward elastic force" cycle mechanism, the four-blade assembly 3 and the lower two-blade assembly 5 achieve continuous and stable up-and-down movement. This up-and-down movement not only further optimizes the uniformity of the mixed food materials and completely avoids the stratification phenomenon, but also effectively disturbs the liquid in the cup to form a complex fluid motion of "vortex + up-and-down circulation", significantly improving the mixing efficiency. At the same time, combined with the weight-reducing effect of the water droplet-shaped holes 321, high-efficiency crushing can be achieved without improving the motor driving efficiency, effectively reducing noise and motor loss, ultimately making the food texture more delicate and improving the overall quality of the food.

[0046] Working principle: The stirring blade assembly 1 integrates the upper two-blade assembly 2, the four-blade assembly 3, the shaft sleeve assembly 4, the lower two-blade assembly 5, and the fixed blade shaft assembly 6. All components use the heating disc stud 7 as the transmission core and fixed reference. Among them, the first fixed sleeve 61 and the second fixed sleeve 62 of the fixed blade shaft assembly 6 are directly fixed on the heating disc stud 7, providing stable up-and-down movement guidance and limiting for the shaft sleeve assembly 4. The upper two-blade assembly 2 is rigidly connected to the heating disc stud 7 through a rivet joint 22, and the four-blade assembly 3 and the lower two-blade assembly 5 achieve linkage with the heating disc stud 7 through the cooperation of the shaft sleeve assembly 4 and the fixed blade shaft assembly 6. After the motor starts, power is directly transmitted to the heating disc stud 7, which first drives the upper two-blade assembly 2 fixed thereto to rotate synchronously. The two-blade 21 of the upper two-blade assembly 2 is symmetrically distributed, and when rotating, it performs preliminary cutting and stirring on large and light food materials such as meat and soft fruits and vegetables in the upper part of the food processor cup, disperses the food materials to avoid suspension, and at the same time, reduces the initial cutting load for the four-blade assembly 3 below. At the same time, power is transmitted to the four-blade assembly 3 and the lower two-blade assembly 5 through the transmission cooperation of the fixed blade shaft assembly 6 and the shaft sleeve assembly 4, so that these two assemblies obtain rotary power. The four-blade assembly 3 is an integrated stamping structure, with the first sawtooth blade 31 and the first sharp blade 32 symmetrically distributed around the center fixed blade shaft through hole 33. The first sawtooth blade 31 uses the sawtooth engagement feature to efficiently crush hard food materials such as nuts and ice in the middle of the cup, preventing blade slip. The first sharp blade 32 is symmetrically distributed at a specific angle, cutting tough food materials such as meat and fiber vegetables with sharp blade edges to avoid food entanglement. The first sharp blade 32 also has water droplet-shaped holes 321 symmetrically distributed thereon, with a diameter ≤2mm and a number ≤3 per blade. The hole diameter is no more than 1 / 3 of the blade width, which not only reduces the blade weight to reduce motor load and noise, but also optimizes food flow to form turbulence, avoids food accumulation, and enhances secondary cutting effect. The lower two-blade assembly 5 is symmetrically distributed and bent downward by ≤15°, which, when rotating, cuts heavy food materials such as nut fragments and fiber residues that are prone to deposit at the bottom of the cup, preventing residue from remaining at the bottom. At the same time, through the inclined cutting surface formed by the bending angle, the bottom food materials are pushed upwards, cooperating with the downward cutting force of the upper assembly to build a vertical stirring path of "up-cutting - middle crushing - bottom pushing", avoiding food stratification.

[0047] The shaft sleeve assembly 4 is divided into an upper shaft sleeve assembly 41 and a lower shaft sleeve assembly 42, which are symmetrical in structure. The upper shaft sleeve assembly 41 comprises an upper shaft sleeve 411, a first upper through hole 412, a first lower through hole 413, and an upper shaft sleeve assembly spring 414. The lower shaft sleeve assembly 42 comprises a lower shaft sleeve 421, a second upper through hole 422, a second lower through hole 423, and a lower shaft sleeve assembly spring 424. The first lower through hole 413 of the upper shaft sleeve assembly 41 and the second upper through hole 422 of the lower shaft sleeve assembly 42 are both closed U-shaped and correspond to the fixed knife shaft through hole 33 of the four-blade assembly 3, so as to realize the synchronous linkage of the shaft sleeve assembly 4 and the four-blade assembly 3. The upper shaft sleeve assembly 41 and the lower shaft sleeve assembly 42 are respectively sleeved outside the first fixed sleeve 61 and the second fixed sleeve 62 of the fixed knife shaft assembly 6 and can slide up and down along the sleeves. Since the elastic force of the lower shaft sleeve assembly spring 424 is smaller than that of the upper shaft sleeve assembly spring 414, when the motor starts, the rotation inertia makes the four-blade assembly 3 and the lower two-blade assembly 5 move upward, compresses the lower shaft sleeve assembly spring 424, and drives the assembly to move upward. When the motor speed decreases due to increased load, the upper shaft sleeve assembly spring 414 releases the elastic force to push the assembly to move downward and reset. Through the cycle of “upward inertia + downward elastic force”, the continuous upward and downward movement of the four-blade assembly 3 and the lower two-blade assembly 5 is realized. This upward and downward movement not only further optimizes the uniformity of food mixing and avoids stratification, but also disturbs the liquid in the cup to form a complex fluid motion of “vortex + upward and downward circulation”, which improves the mixing efficiency. At the same time, combined with the weight reduction effect of the water droplet type hole 321, high-efficiency crushing can be realized without improving the motor driving efficiency, which effectively reduces noise and motor loss, and finally makes the food texture more dense.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A wall breaking eight-bladed knife, characterized in that, The stirring knife assembly (1) is provided with a heating disc screw post (7), and the stirring knife assembly (1) comprises an upper two-blade knife assembly (2), a four-blade knife assembly (3), a shaft sleeve assembly (4), a lower two-blade knife assembly (5) and a fixed knife shaft assembly (6). The fixed knife shaft assembly (6) comprises a first fixed sleeve (61) and a second fixed sleeve (62), and the first fixed sleeve (61) and the second fixed sleeve (62) are fixedly connected to the heating disc screw post (7). The upper two-blade knife assembly (2) comprises a two-blade knife (21) and a riveting head (22), and the upper two-blade knife assembly (2) is fixedly installed on the heating disc screw post (7) through the riveting head (22). The four-blade knife assembly (3) comprises a first sawtooth knife (31), a first sharp knife (32) and a fixed knife shaft through hole (33), and the fixed knife shaft through hole (33) is arranged in the middle of the four-blade knife assembly (3). The shaft sleeve assembly (4) comprises an upper shaft sleeve assembly (41) and a lower shaft sleeve assembly (42), the upper shaft sleeve assembly (41) is sleeved outside the first fixed sleeve (61), and the lower shaft sleeve assembly (42) is sleeved outside the second fixed sleeve (62); the upper shaft sleeve assembly (41) comprises an upper shaft sleeve (411), a first upper through hole (412), a first lower through hole (413) and an upper shaft sleeve assembly spring (414); the lower shaft sleeve assembly (42) comprises a lower shaft sleeve (421), a second upper through hole (422), a second lower through hole (423) and a lower shaft sleeve assembly spring (424), and the elastic force of the lower shaft sleeve assembly spring (424) is smaller than that of the upper shaft sleeve assembly spring (414). The lower two-blade knife assembly (5) is arranged on one side of the lower shaft sleeve (421).

2. The breakwall octo-leaf cutter of claim 1, wherein: A water-drop-shaped hole (321) is arranged on the first sharp knife (32), the water-drop-shaped hole (321) is symmetrically distributed along the first sharp knife (32), the diameter of the water-drop-shaped hole (321) is less than or equal to 2 mm, the hole diameter of the water-drop-shaped hole (321) is not more than 1 / 3 of the width of the first sharp knife (32), and the number of the water-drop-shaped holes (321) arranged on each first sharp knife (32) is not more than 3.

3. The octo-lobed blade of claim 1, wherein: The upper shaft sleeve assembly (41) and the lower shaft sleeve assembly (42) are symmetrical in structure, the upper shaft sleeve assembly spring (414) is internally installed in the upper shaft sleeve assembly (41), and the lower shaft sleeve assembly spring (424) is internally installed in the lower shaft sleeve assembly (42).

4. The octo-lobed blade of claim 1, wherein: The first lower through hole (413) plays an axial limiting role on the upper shaft sleeve assembly spring (414), and the second upper through hole (422) plays an axial limiting role on the lower shaft sleeve assembly spring (424).

5. The octo-lobed blade of claim 1, wherein: The four-blade knife assembly (3) is an integrated stamping structure, the fixed knife shaft through hole (33) is in a closed U-shaped structure, the first sawtooth knife (31) is symmetrically distributed around the four-blade knife assembly (3), and the two-blade knives (21) are symmetrically distributed.

6. The octo-lobed blade of claim 1, wherein: The first sharp knife (32) is arranged on one side of the first sawtooth knife (31) and symmetrically distributed at an angle, the first lower through hole (413) is closed U-shaped and corresponds to the fixed knife shaft through hole (33), and the second upper through hole (422) is closed U-shaped and corresponds to the fixed knife shaft through hole (33).

7. The octo-leaf blade of claim 1, wherein: The lower two-blade knife assembly (5) is symmetrically distributed, and the downward bending angle is set to 10°-15°, the upper two-blade knife assembly (2), the four-blade knife assembly (3), and the lower two-blade knife assembly (5) obtain rotary power through the heat disc stud (7), the four-blade knife assembly (3) and the lower two-blade knife assembly (5) realize up-down movement through the elastic force difference of the upper shaft sleeve assembly spring (414) and the lower shaft sleeve assembly spring (424).

8. The octo-leaf blade of claim 1, wherein: When the motor speed decreases due to the increase of load, the upper shaft sleeve assembly spring (414) releases elastic force, pushes the four-blade knife assembly (3) and the lower two-blade knife assembly (5) to reset downward, and realizes the continuous up-down reciprocating movement of the four-blade knife assembly (3) and the lower two-blade knife assembly (5).

9. The octo-leaf blade of claim 1, wherein: The upper shaft sleeve (411) and the first fixed sleeve (61) are slidingly matched, the lower shaft sleeve (421) and the second fixed sleeve (62) are slidingly matched, and the up-down movement of the four-blade knife assembly (3) and the lower two-blade knife assembly (5) is guided.

10. The octo-lobed blade of claim 1, wherein: The first upper through hole (412) corresponds to the fixed knife shaft assembly (6) to realize the connection and positioning of the upper shaft sleeve assembly (41) and the fixed knife shaft assembly (6).

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