Quick dismounting structure of a stirring blade set and food processor thereof

Abstract

This utility model relates to the technical field, proposing a quick-release structure for a mixing blade assembly and its food processor. The quick-release structure includes a blade holder for mounting and fixing the mixing blade. The blade holder includes an upper seat and a lower seat connected together, with the mixing blade detachably mounted and fixed between the upper and lower seats. A connecting part for cooperating with the mixing blade is provided between the upper and lower seats, and the upper and lower seats are detachably connected through the connecting part, allowing the mixing blade to be detachably fixed between the upper and lower seats. The blade holder is composed of an upper seat and a lower seat, and the detachable mounting and fixing of the mixing blade between the upper and lower seats facilitates the removal of the mixing blade from the blade holder. When cleaning the mixing blade is required, simply separate the upper and lower seats to easily remove the mixing blade, facilitating comprehensive cleaning of the mixing blade and effectively preventing food residue residue and bacterial growth on the mixing blade.

Description

Technical Field

[0001] This utility model relates to the technical field of food processor mixing blade assembly, specifically to a quick-release structure for a mixing blade assembly and its food processor. Background Technology

[0002] A food processor includes a mixing blade for blending and chopping food, and a blade holder mounted on the blade. After use, the mixing blade accumulates food residue, requiring user cleaning. Furthermore, the mixing blade needs replacement after prolonged use; therefore, cleaning and replacing the mixing blade necessitates disassembling it from the food processor. Consequently, a quick-release mechanism for the mixing blade assembly needs to be designed into the food processor. Utility Model Content

[0003] This invention proposes a quick-release structure for a mixing blade assembly. The blade holder consists of an upper and a lower base connected together. The mixing blade is detachably mounted and fixed between the upper and lower bases, facilitating its removal from the blade holder. When cleaning the mixing blade is required, simply separate the upper and lower bases to easily remove the blade, allowing for thorough cleaning and effectively preventing food residue and bacterial growth on the blade.

[0004] A quick-release structure for a stirring blade assembly designed for this purpose includes:

[0005] The blade holder is used to install and fix the stirring blade. The blade holder includes an upper seat and a lower seat, which are connected. The stirring blade is detachably installed and fixed between the upper seat and the lower seat.

[0006] The upper seat and the lower seat are provided with a connecting part that cooperates with the stirring blade, and the upper seat and the lower seat are detachably connected through the connecting part so that the stirring blade can be detachably fixed between the upper seat and the lower seat.

[0007] The lower seat is provided with a connecting part, and the connecting part protrudes upward on the lower seat, forming a positioning step between the connecting part and the lower seat. The stirring blade is provided with a mounting hole that mates with the connecting part.

[0008] With the lower seat and the stirring blade installed, the connecting part of the lower seat passes through the mounting hole of the stirring blade, and the stirring blade is installed on the positioning step.

[0009] The upper seat is provided with an assembly cavity;

[0010] With the lower and upper seats installed, the connecting part of the lower seat is inserted into the assembly cavity of the upper seat;

[0011] The connecting part and the assembly cavity are provided with a threaded connection structure, and the upper seat and the lower seat are detachably connected and fitted through the threaded connection structure.

[0012] The quick-release structure of the stirring blade assembly also includes a drive shaft that is detachably connected to the blade holder. The upper part of the blade holder is detachably connected to the stirring blade, and the lower part of the blade holder is detachably connected to the drive shaft.

[0013] A locking and fastening structure is provided between the lower seat and the drive shaft. The drive shaft is movably connected to the lower seat. The drive shaft is locked on the lower seat through the locking and fastening structure. The fastening structure can be switched to a locked state or an unlocked state by the movement of the drive shaft, so that the drive shaft and the lower seat can be detachably connected and engaged.

[0014] The locking and fastening structure includes a positioning post disposed on the drive shaft and a positioning groove disposed on the lower seat;

[0015] The lower seat is provided with a guide groove that connects to the positioning groove;

[0016] When the lower seat and the drive shaft are installed, the positioning pin of the drive shaft passes through the guide groove of the lower seat. When the positioning pin rotates with the drive shaft and comes into contact with the positioning groove, the drive shaft drives the positioning pin to move towards the positioning groove, so that the positioning pin is finally locked on the positioning groove.

[0017] When the lower seat is detached from the drive shaft, the drive shaft drives the positioning pin to move away from the positioning groove. When the positioning pin rotates with the drive shaft and comes into contact with the guide groove, the drive shaft drives the positioning pin to detach from the guide groove of the lower seat, and the lower seat separates from the drive shaft.

[0018] The lower seat is provided with two opposing positioning grooves, and each positioning groove has a guide groove communicating with it on one side, and the drive shaft has two opposing positioning posts.

[0019] The tool holder is equipped with an elastic element, and the transmission shaft is locked on the lower seat of the tool holder. The elastic element acts on the transmission shaft so that the transmission shaft remains locked on the lower seat under the elastic action.

[0020] The elastic element is a compression spring.

[0021] The lower seat has a through cavity running vertically, and the upper seat has an assembly cavity that connects to the cavity and is connected to one end of the seat. The elastic element is set on the assembly cavity. When the drive shaft is installed with the tool holder, one end of the drive shaft is inserted into the upward cavity, and the elastic element acts directly or indirectly on the drive shaft. When the drive shaft is removed from the tool holder, the drive shaft presses the elastic element upward, and the positioning pin is disengaged from the positioning groove.

[0022] The cavity of the lower seat is provided with a limiting member, the limiting member is provided with a mating part that is inserted into the cavity of the lower seat, and the head of the limiting member blocks the opening of the cavity.

[0023] In the installed state of the upper and lower seats, the elastic element is limited between the limiting element and the assembly cavity of the upper seat, and the limiting element forms an anti-detachment part to prevent the elastic element from being dislodged out of the cavity of the lower seat.

[0024] When the drive shaft is installed with the tool holder, the drive shaft is provided with a function part that acts on the mating part of the limiting member.

[0025] A food processor includes a body and a quick-release structure for the aforementioned mixing blade assembly;

[0026] The machine body is equipped with a motor, and the motor shaft is equipped with a coupling. The upper part of the blade holder is detachably connected to the stirring blade, and the lower part of the blade holder is equipped with a drive shaft connected to the coupling. The lower part of the blade holder is detachably connected to the drive shaft.

[0027] The beneficial technical effects of this utility model are as follows:

[0028] The blade holder consists of an upper and lower body connected together. The mixing blade is detachably mounted between the upper and lower bodies, allowing for easy removal of the blade from the holder. When cleaning the blade, simply separate the upper and lower bodies to easily remove it for thorough cleaning, effectively preventing food residue and bacterial growth. Similarly, when the blade needs replacement due to wear and tear from prolonged use, it can be replaced by separating the upper and lower bodies without disassembling or replacing the entire blade holder, greatly simplifying the process and reducing maintenance difficulty for users. Furthermore, the connection between the upper and lower bodies ensures the mixing blade 2 is securely installed during operation, preventing loosening or detachment due to high-speed rotation, guaranteeing the normal operation and safety of the food processor, and significantly improving the product's ease of use and maintenance. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the assembly of the blade holder, stirring blade and drive shaft according to an embodiment of the present invention.

[0030] Figure 2 This is a three-dimensional structural diagram showing the assembly and disassembly of the knife holder, stirring blade, and drive shaft according to an embodiment of the present invention.

[0031] Figure 3 This is a three-dimensional structural diagram of an embodiment of the present invention, showing the transmission shaft moving outside the guide groove.

[0032] Figure 4 This is a three-dimensional structural diagram of an embodiment of the present invention, showing the transmission shaft and the tool holder separated.

[0033] Figure 5 This is a three-dimensional cross-sectional structural diagram of the assembly of the knife holder, stirring blade and drive shaft according to an embodiment of the present invention. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0035] See Figures 1-5 A quick-release structure for a stirring blade assembly, comprising:

[0036] The blade holder 1 is used to install and fix the stirring blade 2. The blade holder 1 includes an upper seat 3 and a lower seat 4, which are connected. The stirring blade 2 is detachably installed and fixed between the upper seat 3 and the lower seat 4.

[0037] The blade holder 1 consists of an upper seat 3 and a lower seat 4 connected together. The mixing blade 2 is detachably installed and fixed between the upper seat 3 and the lower seat 4, making it easy to remove the mixing blade 2 from the blade holder 1. When cleaning the mixing blade 2 is required, simply separate the upper seat 3 and the lower seat 4 to easily remove the mixing blade 2, facilitating a thorough cleaning and effectively preventing food residue and bacterial growth on the mixing blade 2. Similarly, when the mixing blade 2 needs to be replaced due to wear from prolonged use, it can also be replaced by separating the upper seat 3 and the lower seat 4, without needing to disassemble or replace the entire blade holder 1, greatly simplifying the operation process and reducing the difficulty of maintenance for users. At the same time, the connection method between the upper seat 3 and the lower seat 4 ensures that the mixing blade 2 is securely installed during operation, preventing loosening or detachment due to high-speed rotation during mixing, guaranteeing the normal operation and safety of the food processor, and significantly improving the product's ease of use and maintenance convenience.

[0038] The upper seat 3 and the lower seat 4 are provided with a connecting part 5 that cooperates with the stirring blade 2, and the upper seat 3 and the lower seat 4 are detachably connected through the connecting part 5 so that the stirring blade 2 is detachably fixed between the upper seat 3 and the lower seat 4.

[0039] The connecting part 5 between the upper seat 3 and the lower seat 4 not only enables a detachable connection between the two but also effectively engages with the mixing blade 2, reliably fixing the mixing blade 2 between the upper seat 3 and the lower seat 4. The connecting part 5 ensures a secure connection between the upper seat 3 and the lower seat 4, allowing for easy disassembly while providing a stable mounting base for the mixing blade 2. When the food processor is operating, the mixing blade 2 experiences significant torque and impact forces during high-speed rotation. The connecting part 5, through its engagement with the mixing blade 2 and the connection between the upper seat 3 and the lower seat 4, prevents the mixing blade 2 from shifting or shaking, ensuring smooth mixing operation.

[0040] The lower seat 4 is provided with a connecting part 5, and the connecting part 5 protrudes upward on the lower seat 4. A positioning step 7 is formed between the connecting part 5 and the lower seat 4. The stirring blade 2 is provided with a mounting hole 8 that mates with the connecting part 5.

[0041] When the lower seat 4 and the stirring blade 2 are installed, the connecting part 5 of the lower seat 4 passes through the mounting hole 8 of the stirring blade 2, and the stirring blade 2 is installed on the positioning step 7.

[0042] The lower seat 4 has an upwardly protruding connecting part 5, and a positioning step 7 is provided between the connecting part 5 and the lower seat 4. The positioning step 7 provides precise positioning and reliable support for the installation of the stirring blade 2. The mounting hole 8 of the stirring blade 2 mates with the connecting part 5. When the lower seat 4 and the stirring blade 2 are installed, the connecting part 5 passes through the mounting hole 8, and the stirring blade 2 is installed on the positioning step 7. The positioning step 7 effectively supports the stirring blade 2, and the structure of the connecting part 5 passing through the mounting hole 8 restricts the radial movement of the stirring blade 2, preventing radial wobbling of the stirring blade 2 during high-speed rotation and ensuring the stability of the stirring. When installing the stirring blade 2, the user only needs to align the mounting hole 8 with the connecting part 5 and place it on the positioning step 7. The operation is simple and intuitive, improving installation efficiency. Finally, the upper seat 3 and the lower seat 4 limit the vertical axial displacement of the stirring blade 2.

[0043] The upper seat 3 is provided with an assembly cavity 6;

[0044] When the lower seat 4 and the upper seat 3 are installed, the connecting part 5 of the lower seat 4 is inserted into the assembly cavity 6 of the upper seat 3;

[0045] The connecting part 5 and the assembly cavity 6 are provided with a threaded connection structure, and the upper seat 3 and the lower seat 4 are connected and detached through the threaded connection structure.

[0046] The assembly cavity 6 within the upper seat 3 mates with the connecting part 5 of the lower seat 4, and the two are connected by a threaded connection structure for easy disassembly. This design combines the stability of the connection with the ease of disassembly. The threaded connection structure provides sufficient connection strength to ensure that the stirring blade 2 is reliably fixed between the two. At the same time, the threaded connection makes the disassembly process of the upper seat 3 and the lower seat 4 extremely simple. The user can separate the two and remove the stirring blade 2 simply by rotating the upper seat 3, without the need for complicated tools, greatly reducing the difficulty of operation.

[0047] A sealing ring may be provided between the upper seat 3 or the lower seat 4 and the stirring blade 2 to prevent liquid from entering the blade holder 1 along the gap between the parts.

[0048] The quick-release structure of the stirring blade assembly also includes a drive shaft 9 that is detachably connected to the blade holder 1. The upper part of the blade holder 1 is detachably connected to the stirring blade 2, and the lower part of the blade holder 1 is detachably connected to the drive shaft 9.

[0049] A locking and fastening structure 10 is provided between the lower seat 4 and the transmission shaft 9. The transmission shaft 9 is movably connected to the lower seat 4. The transmission shaft 9 is locked on the lower seat 4 by the locking and fastening structure 10. The fastening structure 10 can be switched to a locked state or an unlocked state by the movement of the transmission shaft 9, so that the transmission shaft 9 and the lower seat 4 can be detachably connected and cooperated.

[0050] The upper part of the blade holder 1 is detachably connected to the stirring blade 2, and the lower part is detachably connected to the drive shaft 9. This detachable structure greatly improves the maintenance flexibility and component replacement convenience of the entire device. When the stirring blade 2 needs to be cleaned or replaced, only the connection between the upper part of the blade holder 1 and the stirring blade 2 needs to be disconnected; there is no need to disassemble the lower part of the blade holder 1. When the blade holder 1 needs to be replaced, the lower part of the blade holder 1 is separated from the drive shaft 9.

[0051] When only the stirring blade 2 needs to be disassembled, the user can keep the drive shaft 9 stationary and simply rotate the upper seat 3 to disassemble the stirring blade 2. Alternatively, the user can detach the entire blade holder 1 from the drive shaft 9 before disassembling the stirring blade 2.

[0052] The locking and fastening structure 10 includes a positioning post 11 disposed on the transmission shaft 9 and a positioning groove 12 disposed on the lower seat 4;

[0053] The lower seat 4 is provided with a guide groove 13 that connects to the positioning groove 12;

[0054] When the lower seat 4 and the drive shaft 9 are installed, the positioning pin 11 of the drive shaft 9 passes through the guide groove 13 of the lower seat 4. When the positioning pin 11 rotates with the drive shaft 9 to be in contact with the positioning groove 12, the drive shaft 9 drives the positioning pin 11 to move towards the positioning groove 12, so that the positioning pin 11 is finally locked on the positioning groove 12.

[0055] When the lower seat 4 is detached from the drive shaft 9, the drive shaft 9 drives the positioning pin 11 to move away from the positioning groove 12. When the positioning pin 11 rotates with the drive shaft 9 and is in contact with the guide groove 13, the drive shaft 9 drives the positioning pin 11 to move outward away from the guide groove 13 of the lower seat 4, and the lower seat 4 is separated from the drive shaft 9.

[0056] The lower seat 4 is provided with two opposing positioning grooves 12, and each positioning groove 12 is provided with a guide groove 13 communicating with it on one side, and the transmission shaft 9 has two opposing positioning posts 11.

[0057] The locking and engaging structure 10, with its positioning pin 11, positioning groove 12, and guide groove 13, achieves reliable locking and unlocking between the drive shaft 9 and the lower seat 4. The guide groove 13 guides the insertion of the positioning pin 11, making the installation and disassembly of the drive shaft 9 smoother, allowing users to quickly align the positioning pin 11 and insert it into the guide groove 13. After the positioning pin 11 rotates to engage with the positioning groove 12, it moves towards the positioning groove 12 to lock. This locking method can withstand the torque transmitted by the drive shaft 9, ensuring that there is no relative rotation or separation between the drive shaft 9 and the lower seat 4 during stirring, thus guaranteeing the stability of power transmission. The two opposing positioning pins 11, positioning grooves 12, and guide grooves 13 form a two-point fixed connection between the drive shaft 9 and the lower seat 4. Furthermore, the locking or unlocking state can be switched by the movement of the drive shaft 9, making the operation simple and easy to understand. Users can easily install and remove the drive shaft 9 without professional knowledge, improving the product's usability. (When stirring...) When the drive shaft 9 drives the lower seat 4 to rotate, the circumferential rotation of the upper seat 3 is not constrained. Therefore, the upper seat 3 rotates with the lower seat 4 and will not detach from the lower seat 4. Furthermore, the upper seat 3 and the lower seat 4 are connected by a thread, which has a pre-tightening force, causing the entire tool holder 1 to rotate with the drive shaft 9.

[0058] The tool holder 1 is provided with an elastic element 14, and the transmission shaft 9 is locked on the lower seat 4 of the tool holder 1. The elastic element 14 acts on the transmission shaft 9 so that the transmission shaft 9 remains locked on the lower seat 4 under the elastic action.

[0059] The elastic element 14 is a compression spring.

[0060] The elastic element 14 within the tool holder 1, especially the compression spring, provides continuous elastic pressure to the drive shaft 9, ensuring that the drive shaft 9 maintains a tight fit with the lower seat 4 in the locked state, effectively preventing accidental unlocking due to vibration or impact. The compression spring is characterized by its simple structure, stable elastic force, and low cost, maintaining good working condition for a long time and reducing product maintenance costs. When disassembling the drive shaft 9 from the lower seat 4, the user only needs to apply a certain force to squeeze the elastic element 14 to release the locked state. The operation is smooth and effortless, without any jamming, improving the user's operating experience. Specifically, when the user needs to disassemble the drive shaft 9 and the lower seat 4 on the food processor, the user presses the blade holder 1 and acts downward against the drive shaft 9. At this time, the positioning pin 11 has already disengaged from the positioning groove 12. Since the user acts downward against the drive shaft 9, the drive shaft 9 connected to the motor cannot rotate. The user rotates the blade holder 1, and the positioning pin 11 rotates to the position of the guide groove 13. After the user releases the downward force acting on the drive shaft 9, the elastic element 14 releases its elastic force and pops out the blade holder 1. At this time, the blade holder 1 is separated from the drive shaft 9.

[0061] When reinstalling the drive shaft 9 and the tool holder 1, after aligning the positioning pin 11 with the guide groove 13, press the tool holder 1 down on the drive shaft 9, then rotate the tool holder 1 to align the positioning pin 11 with the positioning groove 12. After the user releases the downward force acting on the drive shaft 9, the elastic element 14 releases its elastic force, causing the positioning pin 11 to be elastically locked on the positioning groove 12.

[0062] The lower seat 4 has a through cavity 15, and the upper seat 3 has an assembly cavity 6 that connects to the cavity 15 and is connected to one end of the seat 4. The elastic element 14 is disposed on the assembly cavity 6. When the drive shaft 9 is installed with the tool holder 1, one end of the drive shaft 9 is inserted into the upward cavity 15, and the elastic element 14 acts directly or indirectly on the drive shaft 9. When the drive shaft 9 is removed from the tool holder 1, the drive shaft 9 presses the elastic element 14 upward, and the positioning pin 11 is disengaged from the positioning groove 12.

[0063] The cavity 15 of the lower seat 4 is provided with a limiting member 16, the limiting member 16 is provided with a mating part 17 that is inserted into the cavity 15 of the lower seat 4, and the head of the limiting member 16 blocks the opening of the cavity 15.

[0064] When the upper seat 3 and the lower seat 4 are installed, the elastic element 14 is limited between the limiting element 16 and the assembly cavity 6 of the upper seat 3, and the limiting element 16 forms an anti-detachment part to prevent the elastic element 14 from being dislodged out of the cavity 15 of the lower seat 4.

[0065] When the drive shaft 9 is installed with the tool holder 1, the drive shaft 9 is provided with an action part 18 that acts on the mating part 17 of the limiting member 16.

[0066] The cavity 15 of the lower seat 4 is connected to the assembly cavity 6 of the upper seat 3, providing a reasonable spatial layout for the insertion of the drive shaft 9 and the installation of the elastic element 14. This makes the entire structure more compact, fully utilizes the internal space of the tool holder 1, and reduces the overall volume of the device. The elastic element 14 is located in the assembly cavity 6. When the drive shaft 9 is inserted into the cavity 15, the elastic element 14 can act directly or indirectly on the drive shaft 9. The force transmission path is clear and direct, ensuring that the elastic force of the elastic element 14 can play an effective role and guaranteeing the reliability of the drive shaft 9 locking. When disassembling the drive shaft 9, the user squeezes the drive shaft 9, causing the drive shaft 9 to compress the elastic element 14, thereby disengaging the positioning pin 11 from the positioning groove 12. The direction of force during the entire operation is clear, and the user can intuitively feel the feedback of the operation, making it easy to grasp the operating force and progress. This structural design not only ensures the coordinated work between the components but also improves the convenience and intuitiveness of operation, enhancing the practicality of the product.

[0067] The mating part 17 of the limiting member 16 is inserted into the cavity 15 of the lower seat 4, and the head blocks the opening of the cavity 15, which can effectively limit the position of the elastic member 14, prevent the elastic member 14 from shifting or falling off during operation, and ensure that the elastic member 14 is always in the correct working position.

[0068] A food processor includes a body and a quick-release structure for the aforementioned mixing blade assembly;

[0069] The machine body is equipped with a motor, and the motor shaft of the motor is equipped with a coupling. The upper part of the blade holder 1 is detachably connected to the stirring blade 2, and the lower part of the blade holder 1 is equipped with a transmission shaft 9 connected to the coupling, and the lower part of the blade holder 1 is detachably connected to the transmission shaft 9.

[0070] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A quick-release structure for a stirring blade assembly, characterized in that, include: Knife holder (1), the knife holder (1) is used to install and fix the stirring blade (2), the knife holder (1) includes an upper seat (3) and a lower seat (4), the upper seat (3) and the lower seat (4) are connected, and the stirring blade (2) is detachably installed and fixed between the upper seat (3) and the lower seat (4); The lower seat (4) is provided with a connecting part (5); The upper seat (3) is provided with an assembly cavity (6); When the lower seat (4) and the upper seat (3) are installed, the connecting part (5) of the lower seat (4) is inserted into the assembly cavity (6) of the upper seat (3); The connecting part (5) and the assembly cavity (6) are provided with a threaded connection structure, and the upper seat (3) and the lower seat (4) are connected and mated by the threaded connection structure.

2. The quick-release structure of the stirring blade assembly according to claim 1, characterized in that: The upper seat (3) and the lower seat (4) are provided with a connecting part (5) that cooperates with the stirring blade (2), and the upper seat (3) and the lower seat (4) are detachably connected through the connecting part (5) so that the stirring blade (2) is detachably fixed between the upper seat (3) and the lower seat (4).

3. The quick-release structure of the stirring blade assembly according to claim 1, characterized in that: The connecting part (5) protrudes upward and is provided on the lower seat (4). A positioning step (7) is formed between the connecting part (5) and the lower seat (4). The stirring blade (2) is provided with a mounting hole (8) that mates with the connecting part (5). When the lower seat (4) and the stirring blade (2) are installed, the connecting part (5) of the lower seat (4) passes through the mounting hole (8) of the stirring blade (2), and the stirring blade (2) is installed on the positioning step (7).

4. The quick-release structure of the stirring blade assembly according to claim 1, characterized in that: It also includes a drive shaft (9) that is detachably connected to the blade holder (1), the upper part of the blade holder (1) is detachably connected to the stirring blade (2), and the lower part of the blade holder (1) is detachably connected to the drive shaft (9). A locking and fastening structure (10) is provided between the lower seat (4) and the transmission shaft (9). The transmission shaft (9) is movably connected to the lower seat (4). The transmission shaft (9) is locked on the lower seat (4) through the locking and fastening structure (10). The fastening structure (10) can be switched to a locked state or an unlocked state through the movement of the transmission shaft (9) so that the transmission shaft (9) and the lower seat (4) can be detachably connected and cooperated.

5. The quick-release structure of the stirring blade assembly according to claim 4, characterized in that: The locking and fastening structure (10) includes a positioning post (11) provided on the transmission shaft (9) and a positioning groove (12) provided on the lower seat (4). The lower seat (4) is provided with a guide groove (13) that connects to the positioning groove (12); When the lower seat (4) and the drive shaft (9) are installed, the positioning pin (11) of the drive shaft (9) passes through the guide groove (13) of the lower seat (4). When the positioning pin (11) rotates with the drive shaft (9) to be in contact with the positioning groove (12), the drive shaft (9) drives the positioning pin (11) to move towards the positioning groove (12), so that the positioning pin (11) is finally locked on the positioning groove (12). When the lower seat (4) and the drive shaft (9) are disassembled, the drive shaft (9) drives the positioning column (11) to move away from the positioning groove (12). When the positioning column (11) rotates with the drive shaft (9) and is in contact with the guide groove (13), the drive shaft (9) drives the positioning column (11) to move outward away from the guide groove (13) of the lower seat (4), and the lower seat (4) and the drive shaft (9) are separated. The lower seat (4) is provided with two opposing positioning grooves (12), and each positioning groove (12) is provided with a guide groove (13) communicating with it on one side, and the transmission shaft (9) has two opposing positioning posts (11).

6. The quick-release structure of the stirring blade assembly according to claim 4, characterized in that: The tool holder (1) is provided with an elastic element (14), and the transmission shaft (9) is locked on the lower seat (4) of the tool holder (1). The elastic element (14) acts on the transmission shaft (9) so that the transmission shaft (9) remains locked on the lower seat (4) under the elastic action. The elastic element (14) is a compression spring.

7. The quick-release structure of the stirring blade assembly according to claim 6, characterized in that: The lower seat (4) has a cavity (15) that runs vertically through it. The upper seat (3) has an assembly cavity (6) that connects to the cavity (15) and is connected to one end of the seat (4). The elastic element (14) is set on the assembly cavity (6). When the drive shaft (9) is installed with the tool holder (1), one end of the drive shaft (9) is inserted into the upward insertion cavity (15), and the elastic element (14) acts directly or indirectly on the drive shaft (9). When the drive shaft (9) is removed from the tool holder (1), the drive shaft (9) presses the elastic element (14) upward, and the positioning pin (11) is disengaged from the positioning groove (12).

8. The quick-release structure of the stirring blade assembly according to claim 7, characterized in that: The cavity (15) of the lower seat (4) is provided with a limiting member (16), the limiting member (16) is provided with a mating part (17) that is inserted into the cavity (15) of the lower seat (4), and the head of the limiting member (16) blocks the opening of the cavity (15); When the upper seat (3) and lower seat (4) are installed, the elastic element (14) is limited between the limiting element (16) and the assembly cavity (6) of the upper seat (3), and the limiting element (16) forms an anti-detachment part to prevent the elastic element (14) from being dislodged out of the cavity (15) of the lower seat (4); When the drive shaft (9) is installed with the tool holder (1), the drive shaft (9) is provided with an action part (18) that acts on the mating part (17) of the limiting member (16).

9. A food processor, comprising a body, characterized in that: It also includes a quick-release structure for the stirring blade assembly as described in any one of claims 1-8; The machine body is equipped with a motor, and the motor shaft of the motor is equipped with a coupling. The upper part of the knife holder (1) is detachably connected to the stirring blade (2), and the lower part of the knife holder (1) is equipped with a transmission shaft (9) connected to the coupling. The lower part of the knife holder (1) is detachably connected to the transmission shaft (9).

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