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CN-224206690-U - Detachable knife assembly and food processor comprising same

CN224206690UCN 224206690 UCN224206690 UCN 224206690UCN-224206690-U

Abstract

The utility model discloses a detachable knife assembly and a food processor comprising the same. The detachable knife assembly comprises a driving assembly and a knife blade assembly, wherein the knife blade assembly comprises a connecting sleeve and a knife blade, the knife blade is arranged in the connecting sleeve, a connecting hole is formed in the connecting sleeve, the connecting hole is provided with a first hole part and a second hole part which are communicated, the aperture of the first hole part is smaller than that of the second hole part, when the connecting sleeve is arranged right, the first hole part is positioned above the second hole part, the connecting sleeve is sleeved on the driving shaft through the connecting hole to be in transmission connection with the driving shaft, when the connecting sleeve is inverted, the first hole part is positioned below the second hole part, and the first hole part is propped against the side wall of the driving shaft to limit the transmission connection between the connecting sleeve and the driving shaft. Therefore, the potential safety hazard caused by the fact that a user inversely installs the blade assembly due to misoperation is effectively prevented, and even under extreme conditions, the blade assembly cannot be driven in an inverted state, so that accident risks are greatly reduced.

Inventors

  • ZHU ZUOHUA
  • PENG WEI
  • ZHANG SHAOYONG

Assignees

  • 小熊电器股份有限公司
  • 佛山市小熊健康电器有限公司

Dates

Publication Date
20260508
Application Date
20250326

Claims (10)

  1. 1. The removable knife assembly, its characterized in that includes: a drive assembly (1) comprising a drive shaft (11); The blade assembly (2) comprises a connecting sleeve (21) and a blade (22), wherein the blade (22) is arranged in the connecting sleeve (21), a connecting hole (211) is formed in the connecting sleeve (21), the connecting hole (211) is provided with a first hole part (2111) and a second hole part (2112) which are communicated, and the aperture of the first hole part (2111) is smaller than that of the second hole part (2112); When the connecting sleeve (21) is arranged right, the first hole part (2111) is located above the second hole part (2112), the connecting sleeve (21) is sleeved on the driving shaft (11) through the connecting hole (211) to be in transmission connection with the driving shaft (11), when the connecting sleeve (21) is inverted, the first hole part (2111) is located below the second hole part (2112), and the first hole part (2111) is abutted to the side wall of the driving shaft (11) to limit transmission connection between the connecting sleeve (21) and the driving shaft (11).
  2. 2. The detachable knife assembly according to claim 1, wherein the inner side wall of the first hole portion (2111) is provided with an annular inner edge (2113), a first opening of the connecting hole (211) is formed at the annular inner edge (2113), the aperture of the first opening is smaller than that of the second hole portion (2112), and the annular inner edge (2113) abuts against the side wall of the driving shaft (11) when the connecting sleeve (21) is inverted.
  3. 3. The detachable knife assembly according to claim 2, wherein the side wall of the driving shaft (11) is provided with a driving rib (112), the side wall of the connecting hole (211) is provided with a guiding rib (2114), when the connecting sleeve (21) is in a normal position, the guiding rib (2114) and the driving rib (112) are clamped to connect the connecting sleeve (21) and the driving shaft (11), and when the connecting sleeve (21) is in an inverted position, the annular inner edge (2113) is abutted to the driving rib (112) to limit the clamping connection of the driving rib (112) and the guiding rib (2114).
  4. 4. A detachable knife assembly according to claim 3, characterized in that the guiding rib (2114) is provided with a yielding channel (2115), and when the connecting sleeve (21) is in a normal position, the driving rib (112) is clamped with the guiding rib (2114) after passing through the yielding channel (2115).
  5. 5. The detachable knife assembly according to claim 4, wherein the guide rib (2114) is provided with a limiting hole (2116), the driving shaft (11) is provided with a first shaft section (111), the driving rib (112) is arranged on the first shaft section (111), and the limiting hole (2116) is sleeved on the first shaft section (111) when the connecting sleeve (21) is in a normal position.
  6. 6. The detachable knife assembly according to claim 5, wherein the aperture defining the first opening is D1 and the total length of the driving rib (112) and the first shaft section (111) in the radial direction is D2, such that D1 and D2 satisfy D1< D2.
  7. 7. The detachable knife assembly of claim 6, wherein the aperture defining the limiting aperture (2116) is D3 and the aperture defining the second aperture portion (2112) is D4, then D1, D2, D3, D4 satisfy: 4mm≦D3≦D1<D2≦D4≦8mm。
  8. 8. The detachable knife assembly according to claim 3, wherein two driving ribs (112) are arranged, the two driving ribs (112) are oppositely arranged at two sides of the driving shaft (11), the guide ribs (2114) comprise two opposite sub-guide ribs, and when the connecting sleeve (21) is arranged in a positive mode, the two driving ribs (112) are clamped with the two sub-guide ribs in a one-to-one correspondence mode.
  9. 9. The detachable knife assembly according to any of claims 2-8, wherein the annular inner rim (2113) is provided protruding from the outer surface of the connecting sleeve (21).
  10. 10. Food processor comprising a detachable knife assembly according to any of claims 1-9.

Description

Detachable knife assembly and food processor comprising same Technical Field The utility model relates to the technical field of small household appliances, in particular to a detachable knife assembly and a food processor comprising the same. Background Although the existing detachable knife assembly realizes the quick assembly and disassembly of the knife assembly and the driving assembly, in the practical application process, a user can put the knife assembly on the driving shaft upside down due to misoperation sometimes. Because the driving shaft works in a high-speed rotation state, if the blade assembly is inversely installed, the cutting function cannot be normally executed, and serious potential safety hazards such as blade flying off or driving shaft damage and the like can be caused. Therefore, there is a need to design a safety mechanism that effectively prevents the blade assembly from being mounted upside down to ensure safe use. Disclosure of utility model In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present utility model provides a detachable knife assembly and a food processor comprising the same, aiming at avoiding potential safety hazards by improving the design of the connecting sleeve such that the knife assembly cannot form an effective driving connection with the drive shaft when inverted. The utility model adopts the technical proposal for solving the problems that: The detachable knife assembly comprises a driving assembly and a knife blade assembly, wherein the knife blade assembly comprises a connecting sleeve and a knife blade, the knife blade is arranged in the connecting sleeve, a connecting hole is formed in the connecting sleeve, the connecting hole is provided with a first hole part and a second hole part which are communicated, the aperture of the first hole part is smaller than that of the second hole part, when the connecting sleeve is arranged in a positive mode, the first hole part is located above the second hole part, the connecting sleeve is sleeved on the driving shaft through the connecting hole to be in transmission connection with the driving shaft, when the connecting sleeve is inverted, the first hole part is located below the second hole part, and the first hole part is propped against the side wall of the driving shaft to limit transmission connection between the connecting sleeve and the driving shaft. According to some embodiments of the utility model, the inner side wall of the first hole part is provided with an annular inner edge, a first opening of the connecting hole is formed at the annular inner edge, the aperture of the first opening is smaller than that of the second hole part, and the annular inner edge is propped against the side wall of the driving shaft when the connecting sleeve is inverted. According to some embodiments of the utility model, the side wall of the driving shaft is provided with a driving rib, the side wall of the connecting hole is provided with a guiding rib, when the connecting sleeve is arranged in the normal position, the guiding rib is clamped with the driving rib to connect the connecting sleeve with the driving shaft, and when the connecting sleeve is inverted, the annular inner edge is abutted against the driving rib to limit the clamping of the driving rib and the guiding rib. According to some embodiments of the utility model, the guide rib is provided with a yielding channel, and when the connecting sleeve is in a normal position, the driving rib is clamped with the guide rib after passing through the yielding channel. According to some embodiments of the utility model, the guide rib is provided with a limiting hole, the driving shaft is provided with a first shaft section, the driving rib is arranged on the first shaft section, and the limiting hole is sleeved on the first shaft section when the connecting sleeve is in the normal position. According to some embodiments of the utility model, the aperture defining the first opening is D1 and the total length of the driving rib and the first shaft section in the radial direction is D2, then D1 and D2 satisfy D1< D2. According to some embodiments of the utility model, the aperture of the limiting hole is defined as D3, and the aperture of the second hole portion is defined as D4, such that D1, D2, D3, D4 satisfy that 4mm is equal to or less than D3 is equal to or less than D1< D2 is equal to or less than D4 is equal to or less than 8mm. According to some embodiments of the utility model, two driving ribs are arranged, the two driving ribs are oppositely arranged at two sides of the driving shaft, the guiding ribs comprise two opposite sub-guiding ribs, and when the connecting sleeve is arranged in a positive mode, the two driving ribs are clamped with the two sub-guiding ribs in a one-to-one correspondence mode. According to some embodiments of the utility model, the annular inner rim is provided protruding from an outer surfac