Food crushing device

Abstract

The present invention relates to the technical field of household appliances, and discloses a food crushing device, comprising: a main unit; a rotation source, arranged in the main unit; a driving bevel gear, arranged in the main unit and connected to the power output end of the rotation source; a first twisting assembly, having a rotating shaft, the rotating shaft being connected to the driving bevel gear and being able to rotate under the action of the driving bevel gear; a transmission bevel gear, rotatably arranged in the main unit, the rotation axis of the transmission bevel gear being arranged at an angle to the rotation axis of the driving bevel gear, and meshing with the driving bevel gear; a driven bevel gear, rotatably arranged in the main unit and meshing with the transmission bevel gear; a second twisting assembly, having a shaft sleeve, the shaft sleeve being connected to the driven bevel gear and being sleeved outside the rotating shaft. The food crushing device of the present application can solve the defects of the food crushing device in the related art, such as the large number of parts used, the complex structure, and the increased energy loss, and is helpful to improve the coaxiality of the first twisting assembly and the second twisting assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a food crushing device. Background Art

[0002] A food crushing device, such as a meat grinder, is a mechanical device used to cut, mince, grind or mix food. It is widely used in home kitchens, food processing plants and the catering industry.

[0003] In the related art, in order to make the meat grinder work more smoothly, the head part of some meat grinders is provided with a gear box, which has a first connector and a second connector that can output reverse rotation. The first connector and the second connector are respectively connected to the first knife assembly 10 and the second knife assembly 11, so that the first knife assembly 10 and the second knife assembly 11 (see Figure 10 ) rotate in opposite directions, and the torques generated by the two can cancel each other out. However, in order for the first connector and the second connector to output reverse rotation, 7 to 8 gears need to be set in the gearbox and matched with a gear mounting frame, which uses a large number of parts, a complex structure, and increased energy loss. Summary of the Invention

[0004] In view of this, the present invention provides a food crushing device to solve the defects of the food crushing device in the related art, such as the large number of parts used, the complex structure, and the increased energy loss.

[0005] In a first aspect, the present invention provides a food crushing device, comprising:

[0006] Host;

[0007] The rotation source is located in the host machine;

[0008] The driving bevel gear is located in the main engine and connected to the power output end of the rotation source;

[0009] The first winching assembly has a rotating shaft connected to the driving bevel gear and can rotate under the action of the driving bevel gear;

[0010] The transmission bevel gear is rotatably disposed in the main machine, the rotation axis of the transmission bevel gear is set at an angle to the rotation axis of the driving bevel gear, and meshes with the driving bevel gear;

[0011] The driven bevel gear is rotatably arranged in the main engine and meshes with the transmission bevel gear, and can rotate in the opposite direction to the driving bevel gear;

[0012] The second twisting assembly comprises a shaft sleeve which is connected with the driven bevel gear and is sleeved outside the rotating shaft.

[0013] Beneficial effects: The food crushing device of an embodiment of the present invention includes a driving bevel gear, a transmission bevel gear and a driven bevel gear that are meshed in sequence. When the food crushing device is working, the rotation source can rotate along a first rotation direction and drive the driven bevel gear to rotate along a second rotation direction through the driving bevel gear and the transmission bevel gear in sequence. The second rotation direction is opposite to the first rotation direction.

[0014] Therefore, the food crushing device of the embodiment of the present invention can make the first twisting assembly and the second twisting assembly rotate coaxially in opposite directions, so that the first twisting assembly and the second twisting assembly can form a shearing effect, which can cut the meat fibers more quickly and improve the cutting efficiency. At the same time, the reverse rotation of the two groups of twisting assemblies balances the force on the twisting assemblies, can reduce the wear of the knives or stirring paddles of the twisting assemblies, extend the service life of the twisting assemblies, and also enable the vibrations of the two groups of twisting assemblies to offset each other, thereby reducing the overall vibration amplitude of the food crushing device. The reduction in vibration can reduce the generation and propagation of noise, thereby providing a quieter user experience.

[0015] On this basis, the food crushing device of the embodiment of the present application can drive the first twisting assembly and the second twisting assembly to rotate in opposite directions through three bevel gears. The transmission process is simple, the energy loss is small, and the number of parts required for the food crushing device is reduced, which helps to reduce the cost of the food crushing device and reduce the volume of the food crushing device.

[0016] In addition, since the food crushing device of the present application has a small number of transmission stages, the risk of error accumulation is reduced, which helps to improve the coaxiality of the first twisting assembly and the second twisting assembly.

[0017] Therefore, the food crushing device of the embodiment of the present application can solve the defects of the food crushing device in the related art, such as the large number of parts used, complex structure, and increased energy loss, and helps to improve the coaxiality of the first twisting assembly and the second twisting assembly.

[0018] In an optional embodiment, a connecting protrusion is provided on one of the active bevel gear and the first winching assembly, and a connecting groove is provided on the other of the active bevel gear and the first winching assembly. The connecting protrusion is inserted into the connecting groove, and a stop surface is formed between the connecting protrusion and the connecting groove.

[0019] Beneficial effect: Through such an arrangement, when the active bevel gear rotates, it can apply a force to the first winching assembly through the anti-rotation surface, thereby driving the first winching assembly and the active bevel gear to move synchronously.

[0020] In an optional embodiment, the rotation axes of the driving bevel gear and the driven bevel gear are in the same straight line, and the rotation axis of the transmission bevel gear is perpendicular to the rotation axis of the driving bevel gear.

[0021] Beneficial effect: Through such an arrangement, the coaxiality of the first twisting assembly and the second twisting assembly can be ensured, thereby avoiding large vibrations during the rotation of the first twisting assembly and the second twisting assembly, which helps to improve user experience.

[0022] In an optional embodiment, the module of the driving bevel gear is M1, the module of the transmission bevel gear is M2, and the module of the driven bevel gear is M3;

[0023] M1= M2= M3.

[0024] Beneficial Effects: The driving, transmission, and driven bevel gears have the same module, ensuring the three gears have the same pitch, enabling proper meshing and transmission. When the driving bevel gear shaft rotates in a certain direction, driving the transmission bevel gear, the driven bevel gear, driven by the transmission bevel gear, rotates in the opposite direction. Gears with the same module can be machined with standardized tooling, reducing production costs and process complexity, making them particularly suitable for mass production. The consistent module ensures the same gear pitch, making it easier to ensure alignment during assembly and reducing the risk of misalignment. Damaged gears or accessories can be directly interchanged, simplifying maintenance and spare parts management.

[0025] In an optional embodiment, the number of teeth of the driving bevel gear is Z1, and the number of teeth of the driven bevel gear is Z2;

[0026] Z2 / Z1=1.

[0027] Beneficial Effect: Through this configuration, the transmission ratio of the driving bevel gear and the driven bevel gear in the food crushing device of the present application is i=Z2 / Z1=1, ensuring that the driving bevel gear and the driven bevel gear rotate at the same speed. The second twisting assembly can achieve coaxial, same-speed, and opposite-direction rotational cutting as the first twisting assembly, thereby maximally offsetting the vibrations generated by the two twisting assemblies, providing a quieter user experience.

[0028] In an optional embodiment, the first wringing assembly includes a first blade connected to the outer periphery of the rotating shaft; the second wringing assembly includes a second blade connected to the outer periphery of the sleeve.

[0029] Beneficial effect: Through such an arrangement, the first blade and the second blade can rotate in opposite directions during operation, thereby quickly cutting meat fibers.

[0030] In an optional embodiment, there are at least two first blades, which are spaced apart along the axial direction of the rotating shaft, and the interval between two adjacent first blades along the axial direction of the rotating shaft is d1, 0mm≤d1≤10mm; and / or,

[0031] There are at least two second blades, which are spaced apart in the axial direction of the sleeve, and the interval between two adjacent second blades in the axial direction of the sleeve is d1, 0mm≤d1≤10mm; and / or,

[0032] The minimum distance between adjacent first blades and second blades is d2,5mm≤d2≤15mm.

[0033] Beneficial effects: When the distance between two adjacent first blades is within the above range, it can not only provide more space for the passage of meat, reduce the possibility of meat blocks getting stuck between the first blades, and reduce the risk of the food crushing device getting stuck and blocked, but also make it difficult for meat scraps to remain, facilitate the cleaning of the food crushing device, maintain the hygiene of the machine and extend its service life. It can also reduce the collision between knives to a certain extent, reduce the risk of accidents, improve operational safety, and will not cause the minced food to be not delicate enough due to excessive tooth pitch, affecting the taste and quality of the final product.

[0034] When the distance between two adjacent second blades is within the above range, it can not only provide more space for the passage of meat, reduce the possibility of meat blocks getting stuck between the second blades, and reduce the risk of the food crushing device getting stuck and blocked, but also make it difficult for meat scraps to remain, facilitate the cleaning of the food crushing device, maintain the hygiene of the machine and extend its service life, but also reduce the collision between knives to a certain extent, reduce the risk of accidents, and improve operational safety.

[0035] The centrifugal force generated by the reverse rotation is in the opposite direction, thereby forming a dynamic discharge channel in the gap between the adjacent first blade and the second blade. When d2 is within the above range, the situation where the meat is stuck between the first blade and the second blade can be reduced.

[0036] In an optional embodiment, two opposite sides of the first blade are respectively formed with a first cutting edge and a first grinding edge, and two opposite sides of the second blade are respectively formed with a second cutting edge and a second grinding edge.

[0037] Beneficial effect: Through such an arrangement, the first cutting edge and the second cutting edge can cut the food, and the first grinding edge and the second grinding edge can grind the food, and the functions of the food crushing device are more diverse.

[0038] In an optional embodiment, along the preset rotation direction, the first cutting edge and the first grinding edge are sequentially provided on the first blade;

[0039] Along the preset rotation direction, the second grinding edge and the second cutting edge are sequentially arranged on the second blade.

[0040] Beneficial Effects: Through this configuration, the food crushing device can control the first grinding edge and the second grinding edge to rotate toward each other when the rotation source outputs rotation in a preset rotation direction, thereby grinding the food. When the rotation source outputs rotation in the opposite direction of the preset rotation direction, the first cutting edge and the second cutting edge can rotate toward each other, thereby chopping and mincing the food. This makes the food crushing device suitable for a variety of food materials with different material properties and can be used to effectively crush or grind different types of food. This allows users to meet multiple needs for food cutting, crushing, and grinding without having to purchase multiple devices, thereby reducing kitchen space.

[0041] In an optional embodiment, the first grinding edge is a serrated edge and the second grinding edge is a serrated edge, and the tooth pitch of the serrated edge is L1, 4mm≤L1≤8mm.

[0042] Beneficial effects: The above range is the preferred range of tooth pitch. When the tooth pitch is greater than the above range, the friction between the blade and the food will increase, generating more noise and affecting the user experience; when the tooth pitch is smaller than the above range, the minced food will not be delicate enough, affecting the taste and quality of the final product.

[0043] In an optional embodiment, the food crushing device further comprises:

[0044] Bowl body;

[0045] The bowl cover can be covered on the bowl body, the main machine can be connected to the bowl cover, and the first twisting assembly and the second twisting assembly can pass through the bowl cover and be arranged in the bowl body.

[0046] Beneficial effects: The bowl cover can isolate the high-speed rotating first and second twisting components from the external environment, prevent food from splashing due to centrifugal force, and can be used to maintain the closedness of the processing environment.

[0047] In an optional embodiment, the radius of the first blade and the second blade is R1, and the radius of the bottom of the bowl body is R2;

[0048] 1.1≤R2 / R1≤1.5; and / or,

[0049] The radius of the bowl mouth is R3, 1.2≤R3 / R2≤1.4.

[0050] Beneficial effect: When the values ​​of R1, R2 and R3 are within the above range, it can ensure that the first twisting assembly and the second twisting assembly have enough space to cut during rotation, avoiding the first twisting assembly and the second twisting assembly from colliding with the bowl wall, improving the cutting efficiency and the service life of the blade, and facilitating the placement and removal of food.

[0051] In an optional embodiment, the food crushing device further comprises:

[0052] The connecting pin is arranged at the bottom of the bowl body, and the first twisting assembly is rotatably connected to the connecting pin.

[0053] Beneficial effect: Through such a setting, the first twisting assembly can be connected to the bowl body through the connecting pin, which can prevent the first blade from loosening due to vibration or impact during the rotation of the first twisting assembly, thereby ensuring the stability and safety of cutting, and at the same time reducing the vibration noise generated during operation.

[0054] In an optional embodiment, the food crushing device further comprises:

[0055] A shock-absorbing pad is arranged at the bottom of the bowl body.

[0056] Beneficial effect: The shock-absorbing pad is placed under the bowl body, which can further effectively reduce the equipment vibration generated by the food crushing device when it is working, reduce noise, and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0058] Figure 1 Schematic diagram of a first knife assembly and a second knife assembly of a food crushing device in the related art;

[0059] Figure 2 An exploded view of a food crushing device according to an embodiment of the present invention;

[0060] Figure 3 A food crushing device according to an embodiment of the present invention comprises a driving bevel gear, a transmission bevel gear, a driven bevel gear, a first twisting assembly and a second twisting assembly;

[0061] Figure 4 A driving bevel gear of a food crushing device according to an embodiment of the present invention;

[0062] Figure 5 A first crushing component of a food crushing device according to an embodiment of the present invention;

[0063] Figure 6 A second crushing component of a food crushing device according to an embodiment of the present invention;

[0064] Figure 7A partial cross-sectional view of a first wringing assembly and a second wringing assembly of a food crushing device according to an embodiment of the present invention;

[0065] Figure 8 A top view of a first wringing assembly and a second wringing assembly of a food crushing device according to an embodiment of the present invention;

[0066] Figure 9 A first crushing assembly and a bowl of a food crushing device according to an embodiment of the present invention;

[0067] Figure 10 The present invention discloses a food crushing device comprising a main unit, a bowl cover, a driving bevel gear, a transmission bevel gear, a driven bevel gear, a first twisting assembly, and a second twisting assembly.

[0068] Description of reference numerals:

[0069] 1. Host;

[0070] 2. Rotation source;

[0071] 3. Driving bevel gear; 301. Connecting groove;

[0072] 4. First twisting assembly; 401. Rotating shaft; 402. Connecting protrusion; 403. Anti-rotation surface; 404. First blade; 4041. First cutting edge; 4042. First grinding edge;

[0073] 5. Transmission bevel gear;

[0074] 6. Driven bevel gear;

[0075] 7. Second twisting assembly; 701. Bushing; 702. Second blade; 7021. Second cutting edge; 7022. Second grinding edge;

[0076] 8. Bowl body; 801. Connecting pin; 802. Vibration damping pad; 803. Spoiler rib;

[0077] 9. Bowl cover;

[0078] 10. First knife assembly; 11. Second knife assembly. DETAILED DESCRIPTION

[0079] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0080] In the related art, in order to enable the first connector and the second connector to output reverse rotation, the gearbox needs to include a motor, a first gear group and a second gear group. The first gear group includes a central gear, planetary gears and a first inner ring gear. The central gear is connected to the motor output shaft and rotates synchronously with the electric electrode. The planetary gears are installed on the planetary gear carrier and engage with the central gear and the first inner ring gear at the same time. The first inner ring gear is fixed in the chassis shell and does not rotate.

[0081] After the motor is started, the central gear rotates along the first rotation direction. Driven by the central gear, the planetary gears rotate around their own axes and revolve around the central gear. Since the first inner ring gear is fixed, the orbital motion of the planetary gears forces the planetary gear carrier to rotate in the orbital direction. The planetary gear carrier is fixed to the first connector, so the first connector rotates in the same direction as the motor but at a reduced speed.

[0082] The second gear set includes a coaxial gear, a driven gear and a second inner ring gear. The coaxial gear is fixed to the first connecting head and rotates in the same direction as the first connecting head. The driven gear is installed on a driven gear frame fixed to the housing and meshes with the coaxial gear and the second inner ring gear. The second inner ring gear is fixed to the second connecting head.

[0083] After the motor is started, the coaxial gear and the first connecting head rotate in the same direction, the driven gear is engaged with the coaxial gear, and after being driven, it rotates in the second rotation direction, which is opposite to the first rotation direction. The driven gear is engaged with the second inner ring gear, and its rotation in the second rotation direction forces the second inner ring gear to rotate in the first rotation direction. The second connecting head is fixed to the second inner ring gear, so the second connecting head rotates at a speed opposite to the motor and after deceleration.

[0084] Therefore, in the related art, in order to make the first connector and the second connector output reverse rotation, at least a central gear, a planetary gear, a first inner ring gear, a coaxial gear, a driven gear and a second inner ring gear need to be set in the gear box. The number of gears used is large and the structure is complex, which is not conducive to reducing the volume of the meat grinder and will lead to increased energy loss.

[0085] Secondly, in the related technology, the revolution and rotation of the planetary gears need to be precisely coordinated, and assembly deviation can easily lead to a decrease in the actual coaxiality of the two shafts.

[0086] The following combination Figures 1 to 10 , describing embodiments of the present invention.

[0087] According to an embodiment of the present invention, on the one hand, a food crushing device is provided, including a main unit 1, a rotation source 2, a driving bevel gear 3, a first wringing assembly 4, a transmission bevel gear 5, a driven bevel gear 6 and a second wringing assembly 7.

[0088] The rotation source 2 is disposed within the main machine 1. The driving bevel gear 3 is disposed within the main machine 1 and is connected to the power output end of the rotation source 2. The first twisting assembly 4 has a rotating shaft 401, which is connected to the driving bevel gear 3 and can rotate under the action of the driving bevel gear 3. The transmission bevel gear 5 is rotatably disposed within the main machine 1 and meshes with the driving bevel gear 3. The driven bevel gear 6 is rotatably disposed. The second twisting assembly 7 has a shaft sleeve 701, which is connected to the driven bevel gear 6 and is sleeved outside the rotating shaft 401.

[0089] like Figure 2 and Figure 10 As shown, the food crushing device of an embodiment of the present invention includes a driving bevel gear 3, a transmission bevel gear 5 and a driven bevel gear 6 that are meshed in sequence. When the food crushing device is working, the rotation source 2 can rotate along a first rotation direction and drive the driven bevel gear 6 to rotate along a second rotation direction through the driving bevel gear 3 and the transmission bevel gear 5 in sequence. The second rotation direction is opposite to the first rotation direction.

[0090] Therefore, the food crushing device of the embodiment of the present invention can make the first twisting assembly 4 and the second twisting assembly 7 rotate coaxially in opposite directions, so that the first twisting assembly 4 and the second twisting assembly 7 can form a shearing effect, which can cut the meat fibers more quickly and improve the cutting efficiency. At the same time, the reverse rotation of the two groups of twisting assemblies balances the force on the twisting assemblies, can reduce the wear of the knives or stirring paddles of the twisting assemblies, extend the service life of the twisting assemblies, and also enable the vibrations of the two groups of twisting assemblies to offset each other, thereby reducing the overall vibration amplitude of the food crushing device. The reduction in vibration can reduce the generation and propagation of noise, thereby providing a quieter user experience.

[0091] On this basis, the food crushing device of the embodiment of the present application can drive the first twisting assembly 4 and the second twisting assembly 7 to rotate in opposite directions through three bevel gears. The transmission process is simple, the energy loss is small, and the number of parts required for the food crushing device is reduced, which helps to reduce the cost of the food crushing device and reduce the volume of the food crushing device.

[0092] In addition, since the food crushing device of the present application has a small number of transmission stages, the risk of error accumulation is reduced, which helps to improve the coaxiality of the first twisting assembly 4 and the second twisting assembly 7.

[0093] Therefore, the food crushing device of the embodiment of the present application can solve the defects of the food crushing device in the related art, such as the large number of parts used, complex structure, and increased energy loss, and helps to improve the coaxiality of the first twisting component 4 and the second twisting component 7.

[0094] The rotation source 2 may be a device capable of outputting rotation, such as a motor, an engine, a hydraulic motor, or a combination of one of them and a reducer.

[0095] In one embodiment, the rotation source 2 is fixedly disposed in the main unit 1 . A shaft hole is provided on the side of the main unit 1 , and the gear shaft of the transmission bevel gear 5 is installed in the shaft hole.

[0096] In one embodiment, Figure 4 and Figure 5 As shown, one of the driving bevel gear 3 and the first winch assembly 4 is provided with a connecting protrusion 402. The other of the driving bevel gear 3 and the first winch assembly 4 is provided with a connecting groove 301, and the connecting protrusion 402 is inserted into the connecting groove 301, and a rotation-stopping surface 403 is formed between the connecting protrusion 402 and the connecting groove 301.

[0097] With such an arrangement, after the driving bevel gear 3 rotates, it can apply a force to the first winching assembly 4 through the anti-rotation surface 403 , thereby driving the first winching assembly 4 and the driving bevel gear 3 to move synchronously.

[0098] In one embodiment, the connecting protrusion 402 is a spline, and the connecting groove 301 is a spline groove. The spline is tightly connected to the spline groove of the driving bevel gear 3 shaft, and the first twisting assembly 4 can be driven by the driving bevel gear 3 shaft to rotate and twist, and the rotation direction is the same as the rotation direction of the driving bevel gear 3 shaft.

[0099] As a convertible implementation, in an embodiment not shown in the drawings, the connecting protrusion 402 is a prism, and the connecting groove 301 is a groove capable of matching and accommodating the prism.

[0100] As another alternative implementation, in another embodiment not shown in the drawings, the connecting protrusion 402 is a special-shaped structure, and the connecting groove 301 can match and accommodate the special-shaped groove of the special-shaped structure.

[0101] In one embodiment, the rotation axes of the driving bevel gear 3 and the driven bevel gear 6 are in the same straight line, and the rotation axis of the transmission bevel gear 5 is perpendicular to the rotation axis of the driving bevel gear 3 .

[0102] By such a configuration, the coaxiality of the first twisting assembly 4 and the second twisting assembly 7 can be ensured, thereby avoiding large vibrations during the rotation of the first twisting assembly 4 and the second twisting assembly 7, which helps to improve user experience.

[0103] In one embodiment, the module of the driving bevel gear 3 is M1, the module of the transmission bevel gear 5 is M2, and the module of the driven bevel gear 6 is M3;

[0104] M1=M2=M3.

[0105] The module of the driving bevel gear 3, the transmission bevel gear 5, and the driven bevel gear 6 is the same, ensuring the same pitch among the three gears, allowing them to mesh properly and achieve transmission. When the driving bevel gear 3's shaft rotates in one direction, driving the transmission bevel gear 5, the driven bevel gear 6, driven by the transmission bevel gear 5, rotates in the opposite direction of the driving bevel gear 3. Gears with the same module can be machined with standardized tooling, reducing production costs and process complexity, making them particularly suitable for mass production. The consistent module ensures the same pitch of the gears, making it easier to ensure proper alignment during assembly and reducing the risk of misalignment. Damaged gears or accessories are directly interchangeable, simplifying maintenance and spare parts management.

[0106] In one embodiment, the number of teeth of the driving bevel gear 3 is Z1, and the number of teeth of the driven bevel gear 6 is Z2;

[0107] Z2 / Z1=1.

[0108] With this arrangement, in the food crushing device of the present application, the transmission ratio i=Z2 / Z1=1 between the driving bevel gear 3 and the driven bevel gear 6 ensures the same rotational speed of the driving bevel gear 3 and the driven bevel gear 6. The second wringing assembly 7 can achieve coaxial, same-speed, and opposite-direction rotational wringing as the first wringing assembly 4, thereby maximally canceling out the vibrations generated by the two wringing assemblies, providing a quieter user experience.

[0109] As an alternative implementation, in an embodiment not shown in the drawings, the transmission ratio between the driving bevel gear 3 and the driven bevel gear 6 can also be selected to be other values.

[0110] In one embodiment, Figure 5 As shown, the first wringing assembly 4 includes a first blade 404 connected to the outer periphery of the rotating shaft 401; Figure 6 As shown, the second wringing assembly 7 includes a second blade 702 connected to the outer periphery of the sleeve 701 .

[0111] By so configuring, the first blade 404 and the second blade 702 can rotate in opposite directions during operation, thereby quickly cutting the meat fibers.

[0112] As a convertible embodiment, the first stirring assembly 4 includes a first stirring paddle connected to the outer periphery of the rotating shaft 401, and the second stirring assembly 7 includes a second stirring paddle connected to the outer periphery of the sleeve 701. The first stirring paddle and the second stirring paddle can rotate in opposite directions during operation, thereby fully stirring the food.

[0113] As another alternative embodiment, in an embodiment not shown in the accompanying drawings, the first wringing assembly 4 includes a blade connected to the rotating shaft 401, and the second wringing assembly 7 includes a stirring paddle connected to the shaft sleeve 701. The stirring paddle pre-crushes the meat and pushes it to the blade area, where the blade then performs fine cutting. This phased process reduces the direct impact load on the blades from large pieces of meat, improving cutting efficiency by 20-30%. When the stirring paddle rotates in the opposite direction, it creates convection in the opposite direction of the blade's cutting direction, forcing the meat to pass repeatedly through the blade area, avoiding localized accumulation.

[0114] In one embodiment, Figure 7 As shown, there are at least two first blades 404 , which are spaced apart along the axial direction of the rotating shaft 401 , and the interval between two adjacent first blades 404 along the axial direction of the rotating shaft 401 is d1, 0mm≤d1≤10mm.

[0115] The above range is the preferred range between the first blades 404. When the distance between two adjacent first blades 404 is within the above range, it can not only provide more space for the passage of meat, reduce the possibility of meat blocks being stuck between the first blades 404, and reduce the risk of the food crushing device being stuck and blocked, but also make it difficult for meat scraps to remain, facilitate the cleaning of the food crushing device, maintain the hygiene of the machine and extend its service life. It can also reduce the collision between knives to a certain extent, reduce the risk of accidents, improve operational safety, and will not cause the minced food to be not delicate enough due to excessive tooth pitch, affecting the taste and quality of the final product.

[0116] There are at least two second blades 702 , which are spaced apart along the axial direction of the sleeve 701 . The interval between two adjacent second blades 702 along the axial direction of the sleeve 701 is d1, 0mm≤d1≤10mm.

[0117] The above range is the preferred range between the second blades 702. When the distance between two adjacent second blades 702 is within the above range, it can not only provide more space for the passage of meat, reduce the possibility of meat blocks being stuck between the second blades 702, and reduce the risk of the food crushing device being stuck and blocked, but also make it difficult for meat scraps to remain, facilitate the cleaning of the food crushing device, maintain the hygiene of the machine and extend its service life, but also reduce the collision between the knives to a certain extent, reduce the risk of accidents, and improve operational safety.

[0118] The minimum distance between adjacent first blades 404 and second blades 702 is d2, 5 mm ≤ d2 ≤ 15 mm.

[0119] The centrifugal force generated by the reverse rotation is in the opposite direction, thereby forming a dynamic discharge channel in the gap between the adjacent first blade 404 and the second blade 702. When d2 is within the above range, the situation where meat is stuck between the first blade 404 and the second blade 702 can be reduced.

[0120] In one embodiment, two opposite sides of the first blade 404 are respectively formed with a first cutting edge 4041 and a first grinding edge 4042 , and two opposite sides of the second blade 702 are respectively formed with a second cutting edge 7021 and a second grinding edge 7022 .

[0121] By such arrangement, the first cutting edge 4041 and the second cutting edge 7021 can cut the food, and the first grinding edge 4042 and the second grinding edge 7022 can grind the food, and the functions of the food crushing device are more diverse.

[0122] The first cutting edge 4041 and the second cutting edge 7021 are preferably, but not limited to, smooth edges, and the first grinding edge 4042 and the second grinding edge 7022 are preferably, but not limited to, serrated edges.

[0123] As a variant implementation, in an embodiment not shown in the drawings, both sides of the first blade 404 are cutting edges, and both sides of the second blade 702 are grinding edges.

[0124] By doing so, the serrated edge prioritizes tough components such as fascia and connective tissue through tearing cutting, reducing the cutting resistance of the smooth edge.

[0125] The cutting edge performs secondary shaping on the pre-crushed meat blocks, eliminating the burrs produced by sawtooth cutting, thereby improving the surface smoothness of the meat paste particles.

[0126] As an alternative implementation, in yet another embodiment not shown in the drawings, both sides of the first blade 404 and the second blade 702 are cutting sides.

[0127] As an alternative implementation, in yet another embodiment not shown in the drawings, both sides of the first blade 404 and the second blade 702 are ground edges.

[0128] In one embodiment, along a predetermined rotation direction, a first cutting edge 4041 and a first grinding edge 4042 are sequentially provided on the first blade 404;

[0129] Along the preset rotation direction, the second grinding edge 7022 and the second cutting edge 7021 are sequentially arranged on the second blade 702 .

[0130] With this arrangement, the food crushing device can control the first grinding edge 4042 and the second grinding edge 7022 to rotate toward each other when the rotation source 2 outputs rotation along a preset rotation direction, thereby grinding the food. When the rotation source 2 outputs rotation in the opposite direction of the preset rotation direction, the first cutting edge 4041 and the second cutting edge 7021 can rotate toward each other, thereby chopping and mincing the food. This makes the food crushing device suitable for a variety of food materials with different material properties, and can be used to effectively crush or grind different types of food. This allows users to meet various needs such as food cutting, crushing, and grinding without having to purchase multiple devices, thereby reducing kitchen space.

[0131] In one embodiment, the first grinding edge 4042 and the second grinding edge 7022 are serrated edges, and the pitch of the serrations is L1, 4mm≤L1≤8mm.

[0132] The above range is the preferred range of tooth pitch. When the tooth pitch is greater than the above range, the friction between the blade and the food will increase, generating more noise and affecting the user experience. When the tooth pitch is less than the above range, the minced food will not be delicate enough, affecting the taste and quality of the final product.

[0133] In one embodiment, the food crushing device further comprises a bowl body 8 and a bowl cover 9. The bowl cover 9 can be placed on the bowl body 8, the main unit 1 can be connected to the bowl cover 9, and the first and second wringing components 4 and 7 can pass through the bowl cover 9 and be placed in the bowl body 8.

[0134] The bowl cover 9 can isolate the high-speed rotating first and second crushing components 4 and 7 from the external environment, prevent food from splashing due to centrifugal force, and can be used to maintain the closed nature of the processing environment.

[0135] In one embodiment, spoiler ribs 803 are provided in the bowl body 8. The spoiler ribs 803 can disrupt the laminar flow of the meat in the bowl body 8, forcing the meat pieces to continuously change their direction of movement, thereby increasing the frequency of contact with the blades. After the meat pieces hit the spoiler ribs 803, they can rebound and re-enter the blade area, forming a "cut-rebound-re-cut" cycle, thereby significantly increasing the number of times the meat is cut.

[0136] In one embodiment, Figure 8 and Figure 9 As shown, the radius of the first blade 404 and the second blade 702 is R1, and the radius of the bottom of the bowl body 8 is R2;

[0137] 1.1≤R2 / R1≤1.5; and / or,

[0138] The radius of the bowl mouth of the bowl body 8 is R3, and 1.2≤R3 / R2≤1.4.

[0139] When the values ​​of R1, R2 and R3 are within the above range, it can ensure that the first twisting assembly 4 and the second twisting assembly 7 have enough space to cut during rotation, avoiding the first twisting assembly 4 and the second twisting assembly 7 from colliding with the bowl wall, improving the cutting efficiency and the service life of the blade, and facilitating the placement and removal of food.

[0140] In one embodiment, the food crushing device further comprises a connecting pin 801 . The connecting pin 801 is provided at the bottom of the bowl body 8 , and the first wringing assembly 4 is rotatably connected to the connecting pin 801 .

[0141] Through such a configuration, the first twisting assembly 4 can be connected to the bowl body 8 through the connecting pin 801, which can prevent the first blade 404 from loosening due to vibration or impact during the rotation of the first twisting assembly 4, thereby ensuring the stability and safety of cutting, and at the same time reducing the vibration noise generated during operation.

[0142] In one embodiment, the food crushing device further includes a shock-absorbing pad. The shock-absorbing pad is disposed at the bottom of the bowl body 8. The shock-absorbing pad is placed below the bowl body 8 to further effectively reduce the vibration of the food crushing device during operation, reduce noise, and improve the user experience.

[0143] In one embodiment, the bowl mat is preferably but not limited to being made of materials such as rubber or silicone.

[0144] In one embodiment, the food crushing device is a meat grinder. As a convertible embodiment, in some embodiments not shown in the drawings, the food crushing device can also be a juicer or a food processor.

[0145] In summary, the food crushing device of the embodiment of the present invention can solve the defects of the food crushing device in the related art, such as the large number of parts used, complex structure, and increased energy loss, and helps to improve the coaxiality of the first twisting component 4 and the second twisting component 7.

[0146] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope of protection claimed by the present invention.

Claims

1. A food crushing device, characterized in that: include: Host (1); A rotation source (2) is provided in the host (1); A driving bevel gear (3) is provided in the main engine (1) and is connected to the power output end of the rotation source (2); A first twisting assembly (4) has a rotating shaft (401), wherein the rotating shaft (401) is connected to the driving bevel gear (3) and is capable of rotating under the action of the driving bevel gear (3); A transmission bevel gear (5) is rotatably disposed in the main machine (1), wherein the rotation axis of the transmission bevel gear (5) is arranged at an angle to the rotation axis of the driving bevel gear (3) and meshes with the driving bevel gear (3); A driven bevel gear (6) is rotatably disposed in the main engine (1) and meshes with the transmission bevel gear (5), and is capable of rotating in the opposite direction to the driving bevel gear (3); A second twisting assembly (7), the second twisting assembly (7) having a shaft sleeve (701), the shaft sleeve (701) being connected to the driven bevel gear (6) and sleeved outside the rotating shaft (401); The number of teeth of the driving bevel gear (3) is Z1, and the number of teeth of the driven bevel gear (6) is Z2; Z2 / Z1=1; The first twisting assembly (4) includes a first blade (404) connected to the outer periphery of the rotating shaft (401); the second twisting assembly (7) includes a second blade (702) connected to the outer periphery of the shaft sleeve (701); Two opposite sides of the first blade (404) are respectively formed with a first cutting edge (4041) and a first grinding edge (4042); two opposite sides of the second blade (702) are respectively formed with a second cutting edge (7021) and a second grinding edge (7022); Along a preset rotation direction, the first cutting edge (4041) and the first grinding edge (4042) are sequentially arranged on the first blade (404); Along a preset rotation direction, the second grinding edge (7022) and the second cutting edge (7021) are sequentially arranged on the second blade (702).

2. The food crushing device according to claim 1, characterized in that A connecting protrusion (402) is provided on one of the active bevel gear (3) and the first twisting assembly (4), and a connecting groove (301) is provided on the other of the active bevel gear (3) and the first twisting assembly (4). The connecting protrusion (402) is inserted into the connecting groove (301), and a rotation-stopping surface (403) is formed between the connecting protrusion (402) and the connecting groove (301).

3. The food crushing device according to claim 1, characterized in that The rotation axes of the driving bevel gear (3) and the driven bevel gear (6) are in the same straight line, and the rotation axis of the transmission bevel gear (5) is perpendicular to the rotation axis of the driving bevel gear (3).

4. The food crushing device according to claim 1, characterized in that The module of the driving bevel gear (3) is M1, the module of the transmission bevel gear (5) is M2, and the module of the driven bevel gear (6) is M3; M1= M2= M3.

5. The food crushing device according to claim 1, characterized in that: There are at least two first blades (404), which are spaced apart along the axial direction of the rotating shaft (401), and the interval between two adjacent first blades (404) along the axial direction of the rotating shaft (401) is d1, 0mm<d1≤10mm; and / or, There are at least two second blades (702), which are spaced apart along the axial direction of the shaft sleeve (701), and the interval between two adjacent second blades (702) along the axial direction of the shaft sleeve (701) is d2, 0mm<d2≤10mm; and / or, The minimum distance between the adjacent first blade (404) and second blade (702) is d3, 5mm≤d3≤15mm.

6. The food crushing device according to claim 1, characterized in that The first grinding edge (4042) is a serrated edge and the second grinding edge (7022) is a serrated edge, and the tooth pitch of the serrated edge is L1, 4mm≤L1≤8mm.

7. The food crushing device according to claim 1, characterized in that Also includes: Bowl body (8); The bowl cover (9) can be placed on the bowl body (8), the main unit (1) can be connected to the bowl cover (9), and the first twisting assembly (4) and the second twisting assembly (7) can pass through the bowl cover (9) and be placed in the bowl body (8).

8. The food crushing device according to claim 7, characterized in that: The radius of the first blade (404) and the second blade (702) is R1, and the radius of the bottom of the bowl body (8) is R2; 1.1≤R2 / R1≤1.5; and / or, The radius of the bowl mouth of the bowl body (8) is R3, and 1.2≤R3 / R2≤1.

4.

9. The food crushing device according to claim 7, characterized in that: Also includes: A connecting pin (801) is provided at the bottom of the bowl body (8), and the first twisting assembly (4) is rotatably connected to the connecting pin (801).

10. The food crushing device according to claim 7, characterized in that: Also includes: A shock-absorbing pad is provided at the bottom of the bowl body (8).

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