A meat mincing assembly and a kitchen appliance

Abstract

The application relates to the technical field of kitchen appliances, in particular to a meat mincing accessory and a kitchen appliance. The meat mincing accessory adopts double-layer meat mincing knives. Since the double-layer meat mincing knives adopt first and second arc-shaped blades alternately arranged in upper and lower layers, and the first and second arc-shaped extrusion pushing surfaces are oppositely arranged, the meat material forms a cycle of cutting-extrusion pushing-re-cutting between the double-layer blades, the double-layer meat mincing knives can implement multiple cutting on the meat material through single-circle rotation, the effective cutting frequency per unit time can be improved, the meat paste particle size is smaller, the texture is more delicate and uniform, the delicacy and uniformity of the minced meat are greatly improved, and the first arc-shaped blade of the double-layer meat mincing knives is matched with an inner hole plate, and the second arc-shaped blade is matched with an outer hole plate, so that the first and second blades of the double-layer meat mincing knives are both in an effective cutting station and independently form a shearing pair with the corresponding hole plate, and the cutting efficiency and the meat output can be obviously improved.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, specifically to a meat grinder accessory and a kitchen appliance. Background Technology

[0002] Currently, in order to produce fine, palatable meat particles without affecting meat output, and to prevent the meat from becoming mushy or from being too hot to affect its quality, many meat grinder manufacturers use double blades and double mesh, which means using two grinding blades and two meat discharge plates.

[0003] Chinese utility model patent application number 201820785008.7 discloses a double-sided meat grinder, including a mounting hole and a blade disc. The mounting hole is located at the center of the blade disc, and the blade disc is provided with at least two blades. The blades are distributed at 360-degree equal intervals, and each blade has a cutting edge, including a first cutting edge and a second cutting edge. There is a gap between the first cutting edge and the second cutting edge. The first cutting edge and the second cutting edge are vertically distributed and not on the same plane. The double-sided meat grinder is integrally formed, and the first cutting edge and the second cutting edge face the same direction. However, this patent also has the following defects: the two blades act on the meat at the same time, and the cutting paths overlap, making it impossible to form effective shearing and grading, resulting in an unsatisfactory meat grinding effect, affecting the fineness and taste of the meat particles.

[0004] The patent also discloses a meat grinder, including a meat grinder sleeve, a pusher, a blade shaft, a single-sided meat grinder blade, a coarse-mesh mesh, and a fine-mesh mesh. The meat grinder also includes a double-sided meat grinder blade, which includes a mounting hole and a blade disc. The mounting hole is located at the center of the blade disc, and the blade disc is provided with at least two blades. The blades are distributed at 360-degree equal intervals and have cutting edges. The cutting edges include a first cutting edge and a second cutting edge, with a gap between the first cutting edge and the second cutting edge. The first cutting edge and the second cutting edge are vertically distributed and not on the same plane. The double-sided meat grinder blade is integrally formed. The double-sided meat grinder blade, the fine-mesh mesh, the single-sided meat grinder blade, and the coarse-mesh mesh are sleeved on the blade shaft, and the blade shaft is fixedly installed on the pusher. The pusher is connected to a drive mechanism to drive the double-sided meat grinder blade and the single-sided meat grinder blade to rotate. However, the patent also has the following defects: although the double-sided meat grinder has double-sided blades, only one side cooperates with the fine mesh, and the other blade does not have a corresponding perforated plate to work together, so it cannot give full play to the advantage of double-sided synchronous cutting, and the outer blade is useless. Summary of the Invention

[0005] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this application is to provide a meat grinder accessory and a kitchen appliance.

[0006] The objective of this application is achieved through the following technical solution: a meat grinder accessory, comprising a horizontally arranged meat grinder cylinder, a vertically detachable feed cylinder installed at the top center of the meat grinder cylinder, and a feed hopper detachably installed at the top of the feed cylinder. The meat grinder cylinder has a processing chamber, and the feed cylinder has a feed channel leading to the processing chamber. A meat grinder assembly is installed within the processing chamber. The meat grinder assembly includes a connector, a spiral propeller, and a cutter shaft, coaxially fixed from right to left. A spiral meat grinder blade, an inner perforated plate, a double-layer meat grinder blade, and an outer perforated plate are sequentially fitted onto the outer wall of the cutter shaft from right to left. The inner and outer perforated plates are fixed in place. The connector drives the double-layer meat grinder blade and the spiral meat grinder blade to rotate via an external drive mechanism. The double-layer meat grinder blade includes a first cutter holder and an axially spaced component. The first fixing hole in the middle and a ring array of multiple first arc-shaped blades fixed to the outer wall of the top of the first blade holder and a ring array of multiple second arc-shaped blades fixed to the outer wall of the bottom of the first blade holder are arranged alternately. Each first arc-shaped blade has a first cutting edge facing the rotation direction of the double-layer meat grinder. The first arc-shaped blade gradually rises from the front edge to the rear edge to form a first arc-shaped extrusion surface inclined along the rotation direction of the double-layer meat grinder. Each second arc-shaped blade has a second cutting edge facing the rotation direction of the double-layer meat grinder. The second arc-shaped blade gradually rises from the front edge to the rear edge to form a second arc-shaped extrusion surface inclined along the rotation direction of the double-layer meat grinder. The first arc-shaped extrusion surface and the second arc-shaped extrusion surface are arranged in opposite directions.

[0007] Furthermore, the spiral meat grinder includes a second blade holder, a second fixing hole axially opened in the middle of the second blade holder, and a spiral blade fixed to the outer wall of the second blade holder. The spiral blade has a third cutting edge in the direction of rotation of the spiral meat grinder. The spiral blade extends spirally along the axial direction of the second blade holder, and the horizontal projection of the spiral blade is fan-shaped.

[0008] Furthermore, the cutter shaft includes a first fixing part, a second fixing part, and a first connecting part fixed from left to right. A first threaded groove is axially formed in the middle of the left side of the screw propeller, and the first connecting part of the cutter shaft is screwed into the first threaded groove. The connector includes a second connecting part, a stop part, and a mounting part fixed from left to right. An annular baffle is fixed on the right side of the screw propeller. A second threaded groove is axially formed in the middle of the right side of the screw propeller and the annular baffle, and the second connecting part of the connector is screwed into the second threaded groove.

[0009] Furthermore, the inner bore plate has a first through hole in the middle axial direction, and a plurality of material passage holes are arranged in a ring array around the first through hole. The material passage holes are inclined relative to the surface of the inner bore plate, and the inclination direction of the material passage holes is opposite to the rotation direction of the spiral blade.

[0010] Furthermore, a second through hole is provided in the middle axial direction of the outer perforated plate, and a plurality of discharge holes are uniformly provided around the second through hole. The cross-sectional area of ​​the discharge holes is smaller than that of the material passage holes.

[0011] Furthermore, the meat grinder accessory also includes a mounting cylinder fixed to the right side of the meat grinder cylinder and a mounting assembly detachably mounted to the right side of the mounting cylinder; the mounting assembly includes an annular plate, an inner cylinder coaxially fixed to the inner edge of the right side of the annular plate, an outer cylinder coaxially fixed to the outer edge of the right side of the annular plate, multiple first fixing posts arranged in an annular array and fixed to the inner side wall of the outer cylinder, and a mounting hole axially opened in the middle of each first fixing post. The mounting hole extends to and passes through the annular plate. A third through hole is opened on the outer side wall of the outer cylinder, and a fourth through hole is opened on the outer side wall of the inner cylinder corresponding to the position of the third through hole. A fixed shaft is fixed on the right side of the annular plate between the third and fourth through holes. A handle is rotatably mounted on the fixed shaft. The other end of the handle extends out of the outer cylinder through the third through hole. A first and second locking block are fixed on the end of the handle near the fourth through hole. A slot that matches the first locking block is opened on the outer wall of the mounting cylinder. The first locking block passes through the fourth through hole and is embedded in the slot. Fixed blocks are fixed on the upper and lower sides of the outer wall of the inner cylinder corresponding to the fourth through hole. An arc-shaped spring is fixed between the two fixed blocks. The surface of the second locking block abuts against the surface of the arc-shaped spring.

[0012] Furthermore, multiple second fixing posts are fixed around the right side of the annular plate corresponding to the fixed shaft. A limit plate is fixed to the right side of the multiple second fixing posts by bolts. A fixing groove is opened on the left side of the limit plate corresponding to the position of the fixed shaft. The first fixing post is embedded in the fixing groove, and the left side of the limit plate abuts against the two fixing blocks.

[0013] Furthermore, the meat grinder accessory also includes a receiving cylinder fixed to the left side of the meat grinder cylinder and a meat grinder cover detachably installed on the left side of the receiving cylinder. The left outer side wall of the receiving cylinder has multiple locking grooves arranged in a ring. The inner wall of the meat grinder cover has multiple locking blocks arranged in a ring array. Each locking block is rotated and locked into the corresponding locking groove. A handwheel is fixed to the outer side wall of the meat grinder cover.

[0014] Furthermore, the top of the feeding hopper is provided with a feeding port, and a first connecting cylinder is fixed to the bottom edge of the feeding port. The bottom of the first connecting cylinder is detachably connected to the top of the feeding cylinder. A second connecting cylinder is fixed to the middle of the top of the meat grinder, and the top of the second connecting cylinder is detachably connected to the bottom of the feeding cylinder.

[0015] Another objective of this application is achieved through the following technical solution: a kitchen appliance, which includes the above-mentioned meat grinder accessory.

[0016] The beneficial effects of this application are as follows: The double-layer meat grinder blade of this application adopts two alternating layers of first and second arc-shaped blades, with the first and second arc-shaped extrusion surfaces set in opposite directions. The meat material forms a cycle of cutting-pushing-re-cutting between the double-layer blades. The meat material is first cut by the first blade of the first arc-shaped blade, and then actively pushed towards the second arc-shaped blade by the first arc-shaped extrusion surface. After being cut again by the second blade, it is pushed back to the first arc-shaped blade by the second arc-shaped extrusion surface to continue cutting. The double-layer meat grinder blade can cut the meat material multiple times in a single rotation, which can significantly increase the effective number of cuts per unit time, making the final minced meat particles smaller and the texture more delicate and uniform, thereby greatly improving the fineness and uniformity of the minced meat.

[0017] The meat grinder accessory of this application, by having the first arc-shaped blade of the double-layer meat grinder cooperate with the inner hole plate and the second arc-shaped blade cooperate with the outer hole plate, ensures that both the first and second cutting edges of the double-layer meat grinder are in an effective cutting position, achieving double-sided collaborative cutting. Each blade independently forms a shearing pair with the corresponding hole plate, which can significantly improve cutting efficiency and meat output.

[0018] The kitchen appliance of this application, by adopting the above-mentioned meat grinding accessories, can improve the efficiency of meat grinding and improve the uniformity and fineness of the minced meat. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of this application;

[0020] Figure 2 This is an exploded perspective view of this application;

[0021] Figure 3 This is a cross-sectional view of this application;

[0022] Figure 4 This is a perspective view of the meat grinder assembly described in this application;

[0023] Figure 5 This is an exploded perspective view of the connector, screw propeller, and cutter shaft described in this application;

[0024] Figure 6 This is an exploded perspective view of the spiral meat grinder, inner plate, and double-layer meat grinder described in this application;

[0025] Figure 7 This is a perspective view of the double-layer meat grinder described in this application;

[0026] Figure 8 This is a perspective view of the mounting components described in this application;

[0027] Figure 9 This is a perspective view of the mounting assembly of this application without the limiting plate;

[0028] Figure 10 This is a cross-sectional view of the installation components described in this application.

[0029] The attached figures are labeled as follows: 1. Meat grinder cylinder; 11. Processing chamber; 12. Rib; 13. Mounting cylinder; 131. Slot; 132. Positioning notch; 14. Receiving cylinder; 141. Locking groove; 15. Second connecting cylinder; 2. Feeding cylinder; 21. Feeding channel; 3. Feeding hopper; 31. Feeding inlet; 32. First connecting cylinder; 4. Meat grinder assembly; 41. Connector; 411. Second connecting part; 412. Stop part; 413. Mounting part; 42. Spiral propeller; 421. First threaded groove; 422. Annular baffle; 423. Second threaded groove; 43. Cutter shaft; 431. First fixing part; 432. Second fixing part; 433. First connecting part; 434. Limiting part; 434. Spiral meat grinder blade; 44. Second blade holder; 441. Second fixing hole; 442. Spiral blade; 443. Third cutting edge; 444. Inner hole plate; 45. First through hole; 451. Material passage hole; 452. First limiting groove; 453. 46. ​​Double-layer meat grinder blade, 460. Positioning part, 461. First blade holder, 462. First fixing hole, 463. First arc-shaped blade, 464. First cutting edge, 465. First arc-shaped extrusion surface, 466. Second cutting edge, 467. Second arc-shaped extrusion surface, 468. Outer hole plate, 47. Second through hole, 472. Discharge hole, 473. Second limiting block, 5. Mounting assembly, 50. Reinforcing rib, 51. Ring plate, 52. Inner cylinder, 52. Fourth through hole, 521. Fixing block, 522. Positioning block, 524. Outer cylinder, 53. Third through hole, 531. First fixing post, 54. Mounting hole, 541. Fixing shaft, 55. Handle, 56. First locking block, 562. Arc-shaped spring, 57. Second fixing post, 58. Limiting plate, 59. Fixing groove, 591. Meat grinder cover, 6. Locking screw block, 61. Handwheel, 62. Second limiting groove, 63. Detailed Implementation

[0030] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figure 1-10 Further explanation of this application is provided, but the content mentioned in the embodiments is not intended to limit this application.

[0031] See Figure 1-7A meat grinding accessory includes a horizontally arranged grinding cylinder 1, a vertically detachable feeding cylinder 2 installed at the top center of the grinding cylinder 1, and a detachable feeding hopper 3 installed at the top of the feeding cylinder 2. The grinding cylinder 1 has a processing chamber 11, and the feeding cylinder 2 has a feeding channel 21 leading to the processing chamber 11. A meat grinding assembly 4 is installed in the processing chamber 11. The meat grinding assembly 4 includes a connector 41, a spiral propeller 42, and a cutter shaft 43, coaxially fixed from right to left. The outer wall of the cutter shaft 43 is fitted with a spiral meat grinder 44, an inner hole plate 45, a double-layer meat grinder 46, and an outer hole plate 47, from right to left. The inner hole plate 45 and the outer hole plate 47 are fixed. The connector 41 drives the double-layer meat grinder 46 and the spiral meat grinder 44 to rotate via an external drive mechanism. The double-layer meat grinder 46 includes a first cutter holder 461, a first fixing hole 462 axially opened in the middle of the first cutter holder, and a ring array. Multiple first arc-shaped blades 463 are fixed to the top outer wall of the first blade holder 461, and multiple second arc-shaped blades 464 are fixed in a ring array to the bottom outer wall of the first blade holder 461. The multiple first arc-shaped blades 463 and multiple second arc-shaped blades 464 are arranged alternately. Each first arc-shaped blade 463 has a first cutting edge 465 facing the rotation direction of the double-layer meat grinder 46. The first arc-shaped blade 463 gradually rises from the front edge to the rear edge of the first cutting edge 465 to form a first arc-shaped extrusion surface 466 inclined along the rotation direction of the double-layer meat grinder 46. Each second arc-shaped blade 464 has a second cutting edge 467 facing the rotation direction of the double-layer meat grinder 46. The second arc-shaped blade 464 gradually rises from the front edge to the rear edge of the second cutting edge 467 to form a second arc-shaped extrusion surface 468 inclined along the rotation direction of the double-layer meat grinder 46. The first arc-shaped extrusion surface 466 and the second arc-shaped extrusion surface 468 are arranged in opposite directions. In this embodiment, the leading edge refers to the edge facing the rotation direction of the double-layer meat grinder 46, and the trailing edge refers to the edge facing away from the rotation direction of the double-layer meat grinder 46.

[0032] The double-layer meat grinder blade 46 of this application employs two alternating layers of first and second arc-shaped blades 463 and 464, with the first and second arc-shaped pushing surfaces 466 and 468 facing opposite directions. This creates a cutting-pushing-re-cutting cycle between the two layers of blades. The meat is first cut by the first blade 465 of the first arc-shaped blade 463, then actively pushed towards the second arc-shaped blade 464 by the first pushing surface 466, and cut again by the second blade 467. Finally, it is pushed back towards the first arc-shaped blade 463 by the second pushing surface 468 to continue cutting. The double-layer meat grinder blade 46... A single rotation can cut the meat multiple times, significantly increasing the effective number of cuts per unit time, resulting in smaller meat particles and a finer, more uniform texture, thus greatly improving the fineness and uniformity of the minced meat. Furthermore, the meat grinding accessory of this application, by having the first arc-shaped blade 463 of the double-layer meat grinding blade 46 cooperate with the inner hole plate 45 and the second arc-shaped blade 464 cooperate with the outer hole plate 47, ensures that both the first blade 465 and the second blade 467 of the double-layer meat grinding blade 46 are in an effective cutting position, achieving double-sided collaborative cutting. Each blade independently forms a shearing pair with the corresponding hole plate, which can significantly improve cutting efficiency and meat output.

[0033] In this embodiment, the number of first arc-shaped blades 463 and second arc-shaped blades 464 is equal, and the projection of each first arc-shaped blade 463 onto the horizontal plane does not overlap with the projection of each second arc-shaped blade 464 onto the horizontal plane. Preferably, there are two to four first arc-shaped blades 463 and second arc-shaped blades 464. By setting the above structure, the double-layer blades form a uniformly alternating cutting array in the circumferential direction, allowing the meat to be cut alternately when passing through the double-layer meat grinder 46, avoiding blind spots and improving cutting coverage. Furthermore, the non-overlapping projection of each first arc-shaped blade 463 onto the horizontal plane ensures that the meat has sufficient travel to complete the reciprocating movement between the first arc-shaped blades 463 and the second arc-shaped blades 464, thereby ensuring that the meat undergoes multiple cyclic cuts during a single rotation of the double-layer meat grinder 46.

[0034] See Figure 6 In this embodiment, the spiral meat grinder 44 includes a second blade holder 441, a second fixing hole 442 axially formed in the middle of the second blade holder 441, and a spiral blade 443 fixed to the outer wall of the second blade holder 441. The spiral blade 443 has a third cutting edge 444 facing the rotation direction of the spiral meat grinder 44. The spiral blade 443 extends spirally along the axial direction of the second blade holder 441, and the horizontal projection of the spiral blade 443 is fan-shaped. The spiral blade 443 can continuously push the meat towards the inner hole plate 45, and the third cutting edge 444 pre-cuts and pre-crushes the meat before it enters the double-layer meat grinder 46, improving the continuity of meat grinding.

[0035] See Figure 3 , Figure 5 and Figure 7 In this embodiment, the cutter shaft 43 includes a first fixing part 431, a second fixing part 432, and a first connecting part 433, which are fixed sequentially from left to right. A first threaded groove 421 is axially opened in the middle of the left side of the spiral propeller 42, and the first connecting part 433 of the cutter shaft 43 is screwed into the first threaded groove 421. The connector 41 includes a second connecting part 411, a stop part 412, and a mounting part 413, which are fixed sequentially from left to right. An annular baffle 422 is fixed on the right side of the spiral propeller 42. A second threaded groove 423 is axially opened in the middle of the right side of the spiral propeller 42 and the annular baffle 422, and the second connecting part 411 of the connector 41 is screwed into the second threaded groove 423. Specifically, a limiting part 434 is provided on the outer surface of the first fixing part 431 of the blade shaft 43, and a positioning part 460 that cooperates with the limiting part 434 is provided in the first fixing hole 462 of the double-layer meat grinder 46. The double-layer meat grinder 46 is sleeved on the outer surface of the first fixing part 431 through the first fixing hole 462. The blade shaft 43 and the screw propeller 42, and the connector 41 and the screw propeller 42 are all connected by threads for easy independent processing, assembly and maintenance of each component. Moreover, they can be replaced individually when local wear or damage occurs, which can reduce maintenance and usage costs.

[0036] See Figure 3 In this embodiment, multiple raised ribs 12 are uniformly fixed to the inner wall of the meat grinder cylinder 1, and each raised rib 12 extends spirally along the axial direction of the meat grinder cylinder 1. The spiral raised ribs 12 can prevent the meat from rotating synchronously with the screw propeller 42, ensuring that the rotational power of the screw propeller 42 is truly converted into the axial propulsion force of the meat, thereby improving the feeding efficiency and the continuity of meat grinding.

[0037] See Figure 6 In this embodiment, a first through hole 451 is axially formed in the center of the inner hole plate 45, and a plurality of material passage holes 452 are arranged in a ring around the first through hole 451. The material passage holes 452 are inclined relative to the surface of the inner hole plate 45, and the inclination direction of the material passage holes 452 is opposite to the rotation direction of the spiral blade 443. The inclined material passage holes 452 guide the meat, allowing it to enter the cutting area of ​​the double-layer meat grinder 46 at a specific inclination angle, forming a specific cutting angle, which can improve cutting efficiency. Furthermore, since the inclination direction of the material passage holes 452 is opposite to the rotation direction of the spiral blade 443, when the meat passes through the material passage holes 452 under the pushing of the spiral blade 443, it is subjected to a shearing action at the edge of the material passage holes 452 in the opposite direction of the movement of the spiral blade 443, which can form an additional shearing and crushing effect.

[0038] See Figure 6In this embodiment, a second through hole 471 is axially formed in the middle of the outer perforated plate 47, and a plurality of discharge holes 472 are uniformly formed around the second through hole 471. The cross-sectional area of ​​the discharge holes 472 is smaller than that of the feed holes 452. The meat material forms a gradient feed structure in the processing chamber 11, which first passes through loosely and then is compressed and extruded. The larger feed holes 452 at the inner perforated plate 45 can reduce the flow resistance of the meat material entering the area of ​​the double-layer meat grinder 46, making the feeding smoother and effectively preventing the accumulation and blockage of the meat material at the feeding end. The smaller discharge holes 472 at the outer perforated plate 47 compress and shear the meat material after it has been cut multiple times by the double-layer meat grinder 46. With the active pushing action of the first arc-shaped extrusion surface 466 and the second arc-shaped extrusion surface 468, the minced meat is extruded through the discharge holes 472.

[0039] See Figure 2 , Figure 8-10In this embodiment, the meat grinder accessory further includes a mounting cylinder 13 fixed to the right side of the meat grinder cylinder 1 and a mounting assembly 5 detachably mounted to the right side of the mounting cylinder 13. The mounting assembly 5 includes an annular plate 51, an inner cylinder 52 coaxially fixed to the inner edge of the right side of the annular plate 51, an outer cylinder 53 coaxially fixed to the outer edge of the right side of the annular plate 51, multiple first fixing posts 54 arranged in annular array and fixed to the inner side wall of the outer cylinder 53, and mounting holes 541 axially opened in the middle of each first fixing post 54. The mounting holes 541 extend to and pass through the annular plate 51. A third through hole 531 is opened on the outer side wall of the outer cylinder 53, and a fourth through hole 521 is opened on the outer side wall of the inner cylinder 52 corresponding to the position of the third through hole 531. The right side of the annular plate 51 is... A fixing shaft 55 is fixed between the third through hole 531 and the fourth through hole 521. A handle 56 is rotatably mounted on the fixing shaft 55. The other end of the handle 56 extends out of the outer cylinder 53 through the third through hole 531. A first locking block 561 and a second locking block 562 are fixed to the end of the handle 56 near the fourth through hole 521. A groove 131 that mates with the first locking block 561 is opened on the outer wall of the mounting cylinder 13. The first locking block 561 passes through the fourth through hole 521 and is embedded in the groove 131. Fixing blocks 522 are fixed on the upper and lower sides of the outer wall of the inner cylinder 52 corresponding to the fourth through hole 521. An arc-shaped spring piece 57 is fixed between the two fixing blocks 522. The second locking block 562 abuts against the surface of the arc-shaped spring piece 57. Specifically, the annular plate 51, the inner cylinder 52, and the outer cylinder 53 are integrally formed. Multiple reinforcing ribs 50 are radially fixed between the outer walls of the multiple fixing columns and the outer walls of the inner cylinder 52. The mounting component 5 employs an elastic locking structure where a handle 56 engages with a first locking block 561, a second locking block 562, and an arc-shaped spring piece 57. By manipulating the handle 56, the first locking block 561 can be inserted into or disengaged from the slot 131 on the mounting cylinder 13, enabling tool-free quick assembly and disassembly between the mounting component 5 and the mounting cylinder 13. Simultaneously, the arc-shaped spring piece 57 continuously applies a pushing force to the second locking block 562 through its elastic restoring force, ensuring that the first locking block 561 maintains its locking force within the slot 131 during engagement. This effectively prevents the meat grinder components from loosening under operational vibration, significantly improving assembly and maintenance convenience while ensuring connection reliability. The mounting component 5 connects to the external drive mechanism via the mounting hole 541 on the first fixing post 54, facilitating the installation of the meat grinder component 4 with the external drive structure. In other embodiments, the mounting cylinder 13 can be integrally formed with the meat grinder cylinder 1.

[0040] In this embodiment, multiple second fixing posts 58 are fixed around the right side of the annular plate 51 corresponding to the fixed shaft 55. A limiting plate 59 is fixed to the right side of the multiple second fixing posts 58 by bolts. A fixing groove 591 is formed on the left side of the limiting plate 59 corresponding to the position of the fixed shaft 55. One end of the fixed shaft 55 is embedded in the fixing groove 591, and the left side of the limiting plate 59 abuts against the two fixing blocks 522. By setting the above limiting structure, the handle 56 can be prevented from detaching from the fixed shaft 55, and the arc-shaped spring piece 57 can also be prevented from detaching from the first fixing groove 523 on the fixing block 522.

[0041] See Figure 2 , Figure 8 In this embodiment, at least one positioning block 524 is fixed to the inner sidewall of the inner cylinder 52, and a positioning notch 132 that cooperates with the positioning block 524 is opened on the outer sidewall of the mounting cylinder 13. The positioning block 524 is inserted into the positioning notch 132. By setting the above structure, the mounting cylinder 13 can be guided to be inserted into the inner cylinder 52, and the slot 131 can be aligned with the fourth through slot 521.

[0042] See Figure 2 In this embodiment, the meat grinder accessory further includes a receiving cylinder 14 fixed to the left side of the meat grinder cylinder 1 and a meat grinder cover 6 detachably installed on the left side of the receiving cylinder 14. The left outer side wall of the receiving cylinder 14 has a plurality of locking grooves 141 arranged in a ring. The inner wall of the meat grinder cover 6 has a plurality of locking blocks 61 fixed in a ring array. Each locking block 61 is rotatably engaged into a corresponding locking groove 141. A handwheel 62 is fixed to the outer side wall of the meat grinder cover 6. The meat grinder cover 6 is rotatably engaged with the locking grooves 141 on the outer side wall of the receiving cylinder 14 via the locking blocks 61 on its inner wall. The handwheel 62 on the outer side wall of the meat grinder cover 6 allows the user to quickly lock or release the meat grinder cover 6 from the receiving cylinder 14 simply by turning the handwheel 62. This rotatable engagement structure not only saves effort during operation but also prevents the meat grinder cover 6 from loosening due to internal pressure during the meat grinding process, while also facilitating opening for cleaning and blade replacement. In other embodiments, the meat grinder cylinder 1 can be integrally formed with the receiving cylinder 14.

[0043] See Figure 2 , Figure 6In this embodiment, at least one first limiting block (not shown in the figure) is fixed axially on the inner sidewall of the receiving cylinder 14, and a first limiting groove 453 that cooperates with the first limiting block is opened axially on the outer sidewall of the inner hole plate 45, with the first limiting block embedded in the first limiting groove 453; at least one second limiting block 473 is fixed axially on the outer sidewall of the outer hole plate 47, and a second limiting groove 63 that cooperates with the second limiting block 473 is opened axially on the inner sidewall of the meat grinder cover 6, with the second limiting block 473 sinking into the second limiting groove 63. The first limiting block, the first limiting groove 453, the limiting plate 59, and the second limiting groove 63 can limit the inner hole plate 45 and the outer hole plate 47, ensuring that the inner hole plate 45, the outer hole plate 47, and the rotating spiral meat grinder 44 and the double-layer meat grinder 46 always maintain a stable relative positional relationship, so that the cutting gap remains stable.

[0044] See Figure 2 In this embodiment, the top of the feeding hopper 3 is provided with a feeding port 31, and a first connecting cylinder 32 is fixed to the bottom edge of the feeding port 31. The bottom of the first connecting cylinder 32 is detachably connected to the top of the feeding cylinder 2. A second connecting cylinder 15 is fixed to the middle of the top of the meat grinder cylinder 1, and the top of the second connecting cylinder 15 is detachably connected to the bottom of the feeding cylinder 2. The detachable design of each connection part facilitates cleaning after use and makes it easy to thoroughly remove meat scraps and residues in the dead corners of the channel, ensuring food safety and hygiene. In other embodiments, the feeding hopper 3, the feeding cylinder 2, and the meat grinder cylinder 1 can be integrally formed.

[0045] A kitchen appliance includes the aforementioned meat grinder accessory. Specifically, the kitchen appliance includes a horizontally arranged power output end and a connecting base mounted on the outside of the power output end. A mounting assembly 5 is detachably connected to the connecting base, and the power output end is connected to a connecting head 41 via a coupling. The kitchen appliance can be a meat grinder, or a food processor, food processor, or other similar appliance with a horizontal power output end. By employing the aforementioned meat grinder accessory, the kitchen appliance of this application can improve meat grinding efficiency and enhance the uniformity and fineness of the minced meat.

[0046] The above embodiments are preferred implementations of this application. In addition, this application can be implemented in other ways. Any obvious substitutions without departing from the concept of this application are within the protection scope of this application.

Claims

1. A meat grinding accessory, comprising a horizontally arranged meat grinding cylinder, a feed cylinder detachably installed at the top center of the meat grinding cylinder, and a feed hopper detachably installed at the top of the feed cylinder; the meat grinding cylinder has a processing chamber, the feed cylinder has a feed channel leading to the processing chamber, and a meat grinding assembly is installed in the processing chamber; the meat grinding assembly includes a connector, a spiral propeller, and a cutter shaft coaxially fixed from right to left; the outer wall of the cutter shaft is fitted with a spiral meat grinder, an inner hole plate, a double-layer meat grinder, and an outer hole plate from right to left; the inner hole plate and the outer hole plate are fixed; the connector drives the double-layer meat grinder and the spiral meat grinder to rotate via an external drive mechanism, characterized in that: The double-layer meat grinder includes a first blade holder, a first fixing hole axially formed in the middle of the first blade holder, and a plurality of first arc-shaped blades fixed in a ring array to the outer side of the top of the first blade holder and a plurality of second arc-shaped blades fixed in a ring array to the outer side of the bottom of the first blade holder. The plurality of first arc-shaped blades and the plurality of second arc-shaped blades are alternately arranged. Each first arc-shaped blade has a first cutting edge facing the rotation direction of the double-layer meat grinder. The first arc-shaped blade gradually rises from the leading edge to the trailing edge of the first cutting edge to form a first arc-shaped extrusion surface inclined along the rotation direction of the double-layer meat grinder. Each second arc-shaped blade has a second cutting edge facing the rotation direction of the double-layer meat grinder. The second arc-shaped blade gradually rises from the leading edge to the trailing edge of the second cutting edge to form a second arc-shaped extrusion surface inclined along the rotation direction of the double-layer meat grinder. The first arc-shaped extrusion surfaces and the second arc-shaped extrusion surfaces are arranged in opposite directions.

2. The meat grinder accessory according to claim 1, characterized in that: The spiral meat grinder includes a second blade holder, a second fixing hole axially opened in the middle of the second blade holder, and a spiral blade fixed to the outer wall of the second blade holder. The spiral blade has a third cutting edge in the direction of rotation of the spiral meat grinder. The spiral blade extends spirally along the axial direction of the second blade holder, and the horizontal projection of the spiral blade is fan-shaped.

3. A meat grinder accessory according to claim 1, characterized in that: The cutter shaft includes a first fixing part, a second fixing part, and a first connecting part, which are fixed sequentially from left to right. A first threaded groove is axially formed in the middle of the left side of the screw propeller, and the first connecting part of the cutter shaft is screwed into the first threaded groove. The connector includes a second connecting part, a stop part, and a mounting part, which are fixed sequentially from left to right. An annular baffle is fixed on the right side of the screw propeller. A second threaded groove is axially formed in the middle of the right side of the screw propeller and the annular baffle, and the second connecting part of the connector is screwed into the second threaded groove.

4. A meat grinder accessory according to claim 1, characterized in that: The inner bore plate has a first through hole in the middle axial direction, and a plurality of material passage holes are arranged in a ring array around the first through hole. The material passage holes are inclined relative to the surface of the inner bore plate, and the inclination direction of the material passage holes is opposite to the rotation direction of the spiral blade.

5. A meat grinder accessory according to claim 1, characterized in that: The outer perforated plate has a second through hole in the middle axial direction, and a plurality of discharge holes are evenly distributed around the second through hole. The cross-sectional area of ​​the discharge holes is smaller than that of the material passage holes.

6. A meat grinder accessory according to claim 1, characterized in that: The meat grinder accessory also includes a mounting cylinder fixed to the right side of the meat grinder cylinder and a mounting assembly detachably mounted to the right side of the mounting cylinder; the mounting assembly includes an annular plate, an inner cylinder coaxially fixed to the inner edge of the right side of the annular plate, an outer cylinder coaxially fixed to the outer edge of the right side of the annular plate, multiple first fixing posts arranged in a ring and fixed to the inner side wall of the outer cylinder, and a mounting hole axially opened in the middle of each first fixing post. The mounting hole extends to and passes through the annular plate. A third through hole is opened on the outer side wall of the outer cylinder, and a fourth through hole is opened on the outer side wall of the inner cylinder corresponding to the position of the third through hole. A fixed shaft is fixed on the right side of the plate between the third and fourth through holes. A handle is rotatably mounted on the fixed shaft. The other end of the handle extends out of the outer cylinder through the third through hole. A first locking block and a second locking block are fixed on the end of the handle near the fourth through hole. A slot is opened on the outer wall of the mounting cylinder to cooperate with the first locking block. The first locking block passes through the fourth through hole and is embedded in the slot. Fixed blocks are fixed on the upper and lower sides of the outer wall of the inner cylinder corresponding to the fourth through hole. An arc-shaped spring is fixed between the two fixed blocks. The surface of the second locking block abuts against the surface of the arc-shaped spring.

7. A meat grinder accessory according to claim 6, characterized in that: Multiple second fixing posts are fixed around the right side of the annular plate corresponding to the fixed shaft. A limit plate is fixed to the right side of the multiple second fixing posts by bolts. A fixing groove is opened on the left side of the limit plate corresponding to the position of the fixed shaft. The first fixing post is embedded in the fixing groove, and the left side of the limit plate abuts against the two fixing blocks.

8. A meat grinder accessory according to claim 1, characterized in that: The meat grinder accessory also includes a receiving cylinder fixed to the left side of the meat grinder cylinder and a meat grinder cover detachably installed on the left side of the receiving cylinder. The left outer side wall of the receiving cylinder has multiple locking grooves arranged in a ring. The inner wall of the meat grinder cover has multiple locking blocks arranged in a ring. Each locking block is rotated and locked into the corresponding locking groove. A handwheel is fixed to the outer side wall of the meat grinder cover.

9. A meat grinder accessory according to claim 1, characterized in that: The top of the feeding hopper is provided with a feeding port, and a first connecting cylinder is fixed to the bottom edge of the feeding port. The bottom of the first connecting cylinder is detachably connected to the top of the feeding cylinder. A second connecting cylinder is fixed to the middle of the top of the meat grinder, and the top of the second connecting cylinder is detachably connected to the bottom of the feeding cylinder.

10. A kitchen appliance, characterized in that: The kitchen appliance includes the meat grinder accessory as described in any one of claims 1-9.

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