Detachable blade structure of food processor

Abstract

The utility model discloses a detachable knife structure of food processor, including the knife assembly of being placed in the food processing cup and the drive shaft of driving knife assembly rotation, the knife assembly includes the knife rest and installs the cutter head on the knife rest, be equipped with the inner hole and the positioning bottom hole in the knife rest, the inner wall of equipped with inner hole is formed by a plurality of adjacent arrangement equipped with inclined surface ring, the positioning bottom hole sets up in equipped with inner hole bottom, the drive shaft includes the limiting section with equipped with inner hole cooperation and the first positioning section below the limiting section, the sidewall of limiting section is equipped with a plurality of adjacent arrangement and with equipped with inclined surface cooperation limiting inclined surface, the knife rest is through equipped with inner hole and positioning bottom hole and is installed on the drive shaft, and the limiting section of drive shaft and equipped with inner hole cooperation drive cooperation, the first positioning section of drive shaft and positioning bottom hole cooperation carries out concentricity alignment cooperation, makes knife assembly install and has good coaxial degree and works stably.

Description

Technical Field

[0001] This utility model relates to the field of food processors, specifically a detachable blade structure for a food processor. Background Technology

[0002] A food processor is a kitchen appliance that can pulverize and cook food. After use, the food processor's container needs to be cleaned. However, the container contains pulverizing blades, and users risk cutting themselves by touching these blades while cleaning. Therefore, current technology features detachable blades, allowing for easy and efficient cleaning of the food processor container. After cleaning, the blades can be reinstalled. However, current detachable blade designs have a larger clearance for easy assembly and disassembly, leading to misalignment of the blade's concentric axis after installation. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a detachable blade structure for a food processor.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A detachable blade structure for a food processor includes a blade assembly housed within a food processor cup and a drive shaft for rotating the blade assembly. The blade assembly includes a blade holder and a blade disc mounted on the blade holder. The blade holder has a fitting inner hole and a positioning bottom hole. The inner wall of the fitting inner hole is formed by a plurality of adjacently arranged fitting inclined surfaces. The positioning bottom hole is located at the bottom of the fitting inner hole. The drive shaft includes a limiting section that mates with the fitting inner hole and a first positioning section located below the limiting section. The side wall of the limiting section has a plurality of adjacently arranged limiting inclined surfaces that mate with the fitting inclined surfaces. The blade holder is fitted onto the drive shaft through the fitting inner hole and the positioning bottom hole. The limiting section of the drive shaft engages with the fitting inner hole for transmission, and the first positioning section of the drive shaft engages with the positioning bottom hole for concentric alignment.

[0006] The tool holder is also provided with a positioning upper hole located above the mounting inner hole, and the drive shaft is also provided with a second positioning section located above the limiting section. The second positioning section is inserted into the positioning upper hole for concentric alignment.

[0007] The tool holder includes a driving component and a fixing component. The fixing component has a fixing cavity. The driving component is installed in the lower part of the fixing cavity. The driving component has the mounting inner hole and the positioning bottom hole. The fixing cavity has a positioning upper hole.

[0008] Both the bottom positioning hole and the top positioning hole are round holes, and the first positioning segment and the second positioning segment are both positioning cylinders inserted into the positioning round holes to achieve concentric positioning.

[0009] The fitting clearance between the first and second positioning sections and the positioning bottom hole and positioning top hole is 0.05 to 0.25 mm.

[0010] A positioning silicone ring is arranged on the inner wall of the positioning hole.

[0011] The fixing cavity of the fixing member is provided with a step, and the driving member is installed in the fixing cavity with a silicone pad sandwiched between its top and the step.

[0012] The fixing member has an internal thread on the inner wall of the fixing cavity, and the driving member has an external thread on the outer wall. The fixing member and the driving member are fixed by threaded connection.

[0013] The drive unit has a support ring platform at its bottom, and a transmission column is formed above the support ring platform. A transmission hole is formed in the middle of the cutter head and fitted onto the transmission column. The drive unit is connected and fixed to the fixed cavity, and the bottom of the fixed unit and the support ring platform clamp and fix the cutter head.

[0014] The beneficial effects of this utility model are as follows: The tool holder of the tool assembly of this utility model is provided with a fitting inner hole for transmission connection with the drive shaft, and a positioning bottom hole for positioning coaxiality. The drive shaft is provided with a limiting section and a positioning section corresponding to the fitting inner hole and the positioning bottom hole. The limiting section is connected to the fitting inner hole by the limiting inclined surface cooperating with the fitting inclined surface of the fitting inner hole. The positioning bottom hole is fitted on the positioning section for concentric alignment, so that the tool assembly has good coaxiality and works smoothly after installation. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a disassembled schematic diagram of the cooking cup of this utility model;

[0017] Figure 2 This is a disassembled schematic diagram of the blade assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the driving component of this utility model;

[0019] Figure 4 yes Figure 1 Enlarged view of point A in the image;

[0020] Figure 5 This is a partial cross-sectional view of the cooking cup of this utility model. Detailed Implementation

[0021] Reference Figures 1 to 5A detachable blade structure for a food processor includes a blade assembly 1 housed within a food processor cup and a drive shaft 2 for rotating the blade assembly 1. The blade assembly 1 includes a blade holder 11 and a blade disc 12 mounted on the blade holder 11. The blade holder 11 has a fitting inner hole 13 and a positioning bottom hole 14. The inner wall of the fitting inner hole 13 is formed by a plurality of adjacently arranged fitting inclined surfaces 131 arranged in a generally spiral pattern. The positioning bottom hole 14 is located at the bottom of the fitting inner hole 13. The drive shaft 2 includes a limiting section 21 that mates with the fitting inner hole 13 and a first positioning section 22 located below the limiting section 21. The side wall of 1 is provided with multiple adjacent limiting inclined surfaces 211 that cooperate with the mounting inclined surface 131. They are also arranged in a spiral. The tool holder 11 is mounted on the drive shaft 2 through the mounting inner hole 13 and the positioning bottom hole 14. The limiting section 21 of the drive shaft 2 cooperates with the mounting inner hole 13 for transmission. Under the drive of the drive shaft 2, the spirally distributed limiting inclined surfaces 211 and the mounting inclined surface 131 are tightened to achieve efficient transmission. The first positioning section 22 of the drive shaft 2 cooperates tightly with the positioning bottom hole 14 for concentric alignment, so that the tool assembly 1 has good coaxiality and works smoothly after installation.

[0022] As a preferred embodiment of this utility model, the tool holder 11 is further provided with a positioning upper hole 15 located above the mounting inner hole 13, and the drive shaft 2 is provided with a second positioning section 23 located above the limiting section 21. The second positioning section 23 is inserted into the positioning upper hole 15 for concentric alignment and engagement. The positioning bottom hole 14 and the first positioning section 22 are engaged simultaneously for alignment and positioning, further improving the coaxiality positioning performance of the tool assembly 1.

[0023] As a preferred embodiment, the tool holder 11 includes a driving member 3 and a fixing member 4. The fixing member 4 has a fixing cavity 41. The driving member 3 is installed in the lower part of the fixing cavity 41. The driving member 3 has a fitting inner hole 13 and a positioning bottom hole 14. The fixing cavity 41 has a positioning upper hole 15. The bottom of the driving member 3 has a support ring platform 31. A transmission column 32 is formed above the support ring platform 31. The middle part of the tool disc 12 has a transmission hole 121 that is fitted onto the transmission column. The driving member 3 is connected and fixed to the fixing cavity 41. The bottom of the fixing member 4 and the support ring platform 31 clamp and fix the tool disc 12. The tool holder 11 is composed of a split structure, which makes it easier to process the positioning bottom hole 14, the fitting inner hole 13 and the positioning upper hole 15, etc., and also makes it very convenient to install and fix the tool disc 12.

[0024] As a preferred embodiment, both the positioning bottom hole 14 and the positioning top hole 15 are round holes. The first positioning section 22 and the second positioning section 23 are positioning cylinders inserted into the positioning round holes to achieve concentric positioning. The round holes and cylinders are easy to process and are more conducive to accurately controlling the range of the fit clearance between them. Preferably, the fit clearance between the first positioning section 22 and the second positioning section 23 and the positioning bottom hole 14 and the positioning top hole 15 is 0.05 to 0.25 mm. Within this range, not only can the concentricity be guaranteed, but also the disassembly and assembly will not be affected by the fit being too tight.

[0025] Furthermore, a positioning silicone ring 5 is arranged on the inner wall of the positioning upper hole 15. On the one hand, the positioning silicone ring 5 provides an interference soft contact during the process of the second positioning section 23 engaging with the positioning upper hole 15, which plays a certain role in preventing loosening. On the other hand, the positioning silicone ring 5 provides a certain sealing performance. Since the fixing part 4 adopts a through-hole structure for easy processing, and a silicone sealing cap is provided for the upper through-hole, the silicone sealing plug 6 and the positioning silicone ring 5 achieve a double seal, preventing the food slurry in the cooking cup from seeping into the knife holder 11 from the upper through-hole. In addition, the inner wall of the lower through-hole of the fixing cavity 41 of the fixing part 4 is provided with internal threads, and the outer wall of the driving part 3 is provided with external threads. The fixing part 4 and the driving part 3 are fixed by threaded connection. On the one hand, the threaded connection is stable and effective, and on the other hand, it provides a certain sealing performance. Furthermore, the fixing cavity 41 of the fixing part 4 is provided with a step 42. The driving part 3 is installed in the fixing cavity 41, and a silicone pad 7 is sandwiched between the top and the step 42. The silicone pad 7 is compressed during the assembly of the driving part 3 and the fixing part 4, which also plays a role in sealing and preventing loosening. The above arrangement makes the blade holder 11 of the blade assembly 1 compact, which is beneficial to the fact that the detachable blade will not affect the food crushing process too much when working in the food processor.

Claims

1. A detachable blade structure for a food processor, comprising a blade assembly (1) placed inside a food processor cup and a drive shaft (2) for rotating the blade assembly (1), characterized in that: The tool assembly (1) includes a tool holder (11) and a tool disc (12) mounted on the tool holder (11). The tool holder (11) has a fitting inner hole (13) and a positioning bottom hole (14). The inner wall of the fitting inner hole (13) is formed by a plurality of adjacent fitting inclined surfaces (131) arranged in a ring. The positioning bottom hole (14) is located at the bottom of the fitting inner hole (13). The drive shaft (2) includes a limiting section (21) that mates with the fitting inner hole (13) and a lower part of the limiting section (21). The first positioning section (22) of the square, the side wall of the limiting section (21) is provided with a plurality of adjacently arranged limiting inclined surfaces (211) that cooperate with the mounting inclined surface (131), the tool holder (11) is fitted on the drive shaft (2) through the mounting inner hole (13) and the positioning bottom hole (14), the limiting section (21) of the drive shaft (2) cooperates with the mounting inner hole (13) for transmission cooperation, and the first positioning section (22) of the drive shaft (2) cooperates with the positioning bottom hole (14) for concentric alignment cooperation.

2. The detachable blade structure according to claim 1, characterized in that: The tool holder (11) is also provided with a positioning upper hole (15) located above the mounting inner hole (13). The drive shaft (2) is also provided with a second positioning section (23) located above the limiting section (21). The second positioning section (23) is inserted into the positioning upper hole (15) for concentric alignment.

3. The detachable blade structure according to claim 2, characterized in that: The tool holder (11) includes a driving member (3) and a fixing member (4). The fixing member (4) has a fixing cavity (41). The driving member (3) is installed in the lower part of the fixing cavity (41). The driving member (3) forms the mounting inner hole (13) and the positioning bottom hole (14). The fixing cavity (41) has a positioning upper hole (15) on the upper part.

4. The detachable blade structure according to claim 2 or 3, characterized in that: The bottom positioning hole (14) and the top positioning hole (15) are both round holes. The first positioning section (22) and the second positioning section (23) are both positioning cylinders inserted into the positioning round holes to achieve concentric positioning.

5. The detachable blade structure according to claim 4, characterized in that: The fitting clearance between the first positioning segment (22) and the second positioning segment (23) and the positioning bottom hole (14) and the positioning top hole (15) is 0.05 to 0.25 mm.

6. The detachable blade structure according to claim 2 or 3, characterized in that: A positioning silicone ring (5) is arranged on the inner wall of the positioning hole (15).

7. The detachable blade structure according to claim 3, characterized in that: The top of the fastener (4) is open and covered by a silicone sealing plug (6).

8. The detachable blade structure according to claim 3, characterized in that: The fixing cavity (41) of the fixing member (4) is provided with a step (42), and the driving member (3) is installed in the fixing cavity (41) and a silicone pad (7) is sandwiched between the top and the step (42).

9. The detachable blade structure according to claim 3 or 8, characterized in that: The fixing cavity (41) of the fixing member (4) has an internal thread on its inner wall, and the driving member (3) has an external thread on its outer wall. The fixing member (4) and the driving member (3) are fixed by threaded connection.

10. The detachable blade structure according to claim 3, characterized in that: The drive unit (3) has a support ring platform (31) at the bottom, and a transmission column (32) is formed above the support ring platform (31). The cutter head (12) has a transmission hole (121) in the middle that is fitted onto the transmission column (32). The drive unit (3) is connected and fixed to the fixed cavity (41). The bottom of the fixed unit (4) and the support ring platform (31) clamp and fix the cutter head (12).

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