A detachable blade assembly

Abstract

The utility model discloses a detachable cutter assembly for a food processor, the food processor is equipped with a driving motor, and comprises a connecting piece, a mounting seat, a cutter, a locking nut and a snap spring. One end of the connecting piece is driven to rotate by the driving motor, and the other end is provided with a groove. The mounting seat is provided with a first through hole for the connecting piece to pass through, and one end of the mounting seat is provided with an external thread section. A second through hole is formed in the cutter, and the cutter is sleeved on the external thread section. The locking nut is threadedly connected to the external thread section and abuts against one side of the cutter to press and fix the cutter. The snap spring is connected in the groove to limit the locking nut from coming off axially and lock the cutter. Thus, the cutter is axially pressed by the locking nut, and the limiting effect of the snap spring is combined to effectively prevent the locking nut from loosening and falling off due to vibration or impact during high-speed operation. Meanwhile, the overall structure of the assembly is simple and compact, and the disassembly and replacement of the cutter are more convenient.

Description

Technical Field

[0001] This utility model relates to the field of tool disassembly and assembly technology, specifically to a detachable tool assembly. Background Technology

[0002] Existing food processors typically use a drive motor to rotate blades to blend or pulverize ingredients. To ensure stable and reliable operation of the blades during high-speed rotation, existing technologies often employ threaded connectors or fasteners to secure the blades to the motor output.

[0003] However, existing tool fixing methods still have the following shortcomings: Firstly, cutting tools often rely on a single threaded clamping structure for locking, which can easily loosen due to vibration or impact after prolonged use, thus affecting the stability and service life of the cutting tools. Secondly, some structures lack an effective anti-loosening mechanism after locking, which may cause the blade to loosen when rotating at high speed, posing a certain safety hazard. Thirdly, some structural designs are quite complex, and the blades are cumbersome to install or remove, which not only reduces the ease of use, but also makes them prone to local wear under repeated loading and unloading or stress, resulting in a gradual decrease in the fastening effect and affecting the long-term performance and reliability of the food processor.

[0004] Therefore, how to provide a detachable knife assembly that is simple in structure, reliable in locking, can effectively prevent loosening, and is easy to assemble and disassemble quickly has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a detachable blade assembly. The blade is axially clamped by a locking nut, and the limiting effect of the retaining spring effectively prevents the locking nut from loosening or falling off due to vibration or impact during high-speed operation. At the same time, the overall structure of the assembly is simple, making the disassembly and replacement of the blade more convenient. It avoids the inconvenience and local wear problems caused by complex structures, and further improves the long-term performance and maintenance convenience of the food processor.

[0006] The technical solution adopted by this utility model to solve its problem is: A detachable blade assembly for a food processor, the food processor being equipped with a drive motor, comprising: A connector, one end of which is driven to rotate by the drive motor, and the other end of which is provided with a groove; The mounting base has a first through hole for the connector to pass through, and one end of the mounting base has an external thread section; The cutting tool has a second through hole and is sleeved on the external thread section; A lock nut, which is threaded onto the external thread section and abuts against one side of the tool, to press and fix the tool. It also includes a retaining ring, which is connected in the groove to prevent the locking nut from disengaging axially and thus locking the tool.

[0007] Furthermore, the other end of the mounting base is provided with a slot; one end of the connector is provided with a locking block, which is engaged in the slot; the other end of the mounting base is also provided with an insert for connecting the slot to the outside and allowing the locking block to be engaged in the slot.

[0008] Furthermore, the opening size of the insert is smaller than the width of the slot to prevent the card block from coming out during rotation after it is inserted.

[0009] Furthermore, one end of the locking nut is provided with an internal thread that mates with the external thread section, and the other end is provided with an embedded groove; after the snap ring is engaged in the groove, its end is engaged in the embedded groove.

[0010] Furthermore, the retaining ring includes a retaining ring body, a first extension arm disposed on one side of the retaining ring body, and a second extension arm disposed on the other side of the retaining ring body; when the retaining ring body is engaged in the recessed groove, both the first extension arm and the second extension arm are engaged in the recessed groove.

[0011] Furthermore, the other end of the locking nut extends with a protrusion, and the inner groove is formed within the protrusion.

[0012] Furthermore, there are two slots and insertion openings respectively arranged on both sides of the other end of the mounting base, and there are two locking blocks respectively arranged on both sides of one end of the connector.

[0013] Furthermore, the external thread section is also provided with a flattened portion, and the second through hole is provided with a limiting protrusion. The limiting protrusion cooperates with the flattened portion to restrict the relative rotation between the tool and the mounting base.

[0014] Furthermore, the groove is arranged in a ring shape at the other end of the connector.

[0015] Furthermore, the groove has a transition section on the side away from the drive motor.

[0016] In summary, this utility model has the following technical effects: 1. This utility model's detachable tool assembly uses a locking nut to axially clamp the tool, combined with the limiting effect of a retaining spring, effectively preventing the locking nut from loosening or falling off due to vibration or impact during high-speed operation. This significantly improves the tool's operational stability and safety. Simultaneously, while ensuring reliable locking, the assembly features a simple overall structure, making tool disassembly and replacement more convenient. This avoids the inconvenience and localized wear problems associated with complex structures, further enhancing the long-term performance and maintenance convenience of the equipment.

[0017] 2. This utility model's detachable knife assembly, by designing the opening size of the insertion port to be smaller than the width of the slot, allows the locking block to form an effective limiting constraint after rotating into the slot. This prevents the locking block from accidentally dislodging from the insertion port due to shaking during operation or vibrations caused by high-speed motor operation. Therefore, it not only ensures reliable locking between the connector and the mounting base but also improves the stability and safety of the overall structure, extending the service life of the detachable knife assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the detachable blade assembly of this utility model; Figure 2 This is an exploded view of the detachable blade assembly of this utility model; Figure 3 This is a schematic diagram of the mounting base in the detachable knife assembly of this utility model; Figure 4 This is a schematic diagram of the locking nut in the detachable knife assembly of this utility model from one perspective. Figure 5 This is a second-view structural schematic diagram of the locking nut in the detachable knife assembly of this utility model; Figure 6 This is a schematic diagram of the retaining spring in the detachable knife assembly of this utility model.

[0019] The meanings of the reference numerals in the attached figures are as follows: 1. Connector; 11. Threaded end; 12. Groove; 121. Transition section; 13. Locking block; 2. Mounting base; 21. External thread section; 22. First through hole; 23. Slot; 24. Embedded opening; 25. Flattened part; 3. Tool; 31. Second through hole; 32. Limiting protrusion; 4. Locking nut; 41. Internal thread; 42. Protrusion; 43. Inset groove; 5. Snap ring; 51. Snap ring body; 52. First extension arm; 53. Second extension arm; 54. Opening; 6. Washer. Detailed Implementation

[0020] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] like Figure 1-6 The detachable blade assembly shown is used in a food processor. The food processor is equipped with a drive motor and includes a connector 1, a mounting base 2, a blade 3, a locking nut 4, and a retaining ring 5. One end of the connector 1 is used for transmission connection with the output shaft of the drive motor (the connector 1 can also be the output shaft of the drive motor), or one end of the connector 1 can be provided with a threaded end 11 connected to the output shaft of the drive motor. The output shaft of the drive motor has a thread that mates with the threaded end 11. The other end of the connector 1 is provided with a groove 12. The mounting base 2 has a first through hole 22 for the connector 1 to pass through, and one end of the mounting base 2 has an external thread section 21. The blade 3 has a second through hole 31 and is fitted onto the external thread section 21. The locking nut 4 is threaded onto the external thread section 21 and abuts against one side of the blade 3 to axially press and fix the blade 3. The retaining ring 5 is connected in the groove 12 to prevent the locking nut 4 from axially disengaging, thereby achieving reliable locking of the blade 3.

[0024] Therefore, through the clamping action of the locking nut 4 and the limiting action of the retaining spring 5, not only can the locking nut 4 be effectively prevented from loosening or falling off due to vibration or impact, but the stability of the tool 3 under high-speed rotation and the overall safety of use are also significantly improved. In order to facilitate the removal of the entire tool 3 from the connecting piece 1 and to extend the service life of the retaining spring 5, a transition section 121 is provided on the side of the groove 12 away from the drive motor. The transition section 121 can be composed of an inclined surface and / or an arc surface. During the disassembly process, by pulling outward along the other end of the connecting piece 1 axially with external force, the retaining spring 5 deforms and, guided by the inclined surface and / or arc surface, deforms and disengages from the groove 12, thereby separating the entire tool assembly, that is, separating the connecting piece 1 connected to the drive motor from another whole composed of the mounting base 2, the locking nut 4 and the tool 3, forming two independent components. If further disassembly of the tool 3 body is required, simply unscrew the locking nut 4 from the mounting base 2 to remove the tool 3 from the external thread section 21. This disassembly method is simple and intuitive, making it more convenient for users to replace tool 3 or perform cleaning and maintenance. It also reduces wear and tear on parts caused by complex disassembly and assembly, thereby effectively improving the durability and maintenance efficiency of the components.

[0025] In addition, the other end of the connector 1 is provided with a bevel and / or arc surface to facilitate the installation of the entire tool assembly. During installation, when an external force causes the entire tool assembly to be fitted along the other end of the connector 1, the retaining spring 5 deforms and is stretched open under the guidance of the bevel and / or arc surface, and then automatically snaps into the groove 12 after being fitted into place to complete the retraction and locking. This design not only simplifies the assembly process and reduces the installation difficulty, but also ensures reliable reset of the retaining spring, improving the stability and safety of the connection between the tool assembly and the connector 1.

[0026] Furthermore, the other end of the mounting base 2 is provided with a slot 23, and one end of the connector 1 is provided with a locking block 13, which can be engaged in the slot 23. At the same time, the other end of the mounting base 2 is also provided with an insertion port 24, which is used to connect the slot 23 to the outside and facilitate the easy insertion or removal of the locking block 13. Through the cooperation of the locking block 13 and the slot 23, a stable limiting structure is formed between the connector 1 and the mounting base 2, preventing loosening due to long-term operation.

[0027] Furthermore, the opening size of the insertion port 24 is smaller than the width of the slot 23, so that the locking block 13 can be effectively limited after being inserted, thereby preventing it from coming out during rotation, further enhancing the locking effect and safety of use.

[0028] It should be noted that the insertion port 24 opens outward from the middle of the slot 23, so that the middle of the slot 23 is connected to the outside (e.g., Figure 3(As shown). When the drive motor rotates the connector 1 in either direction, the locking block 13 can reliably engage with one side or the other side of the slot 23 without disengaging through the central insertion opening 24. Therefore, this structure ensures smooth assembly of the locking block 13 while effectively preventing it from accidentally slipping out during rotation. This further enhances the fit and operational stability between the connector 1 and the mounting base 2, ensuring that the tool 3 remains reliably locked even under high-speed rotation, thus improving overall safety and durability.

[0029] See Figure 4-5 One end of the locking nut 4 is provided with an internal thread 41 that mates with the external thread section 21, and the other end is provided with an embedded groove 43. After the snap ring 5 is engaged in the groove 12, its end can be engaged in the embedded groove 43 to achieve double limiting. On the one hand, it improves the firmness of the connection between the locking nut 4 and the connecting piece 1, and on the other hand, it prevents the locking nut 4 from loosening and falling off after long-term use.

[0030] See Figure 6 The retaining ring 5 includes a retaining ring body 51, a first extension arm 52 disposed on one side of the retaining ring body 51, and a second extension arm 53 disposed on the other side. When the retaining ring body 51 is engaged in the inner groove 43, both the first extension arm 52 and the second extension arm 53 are engaged in the inner groove 43, thereby improving the locking reliability of the retaining ring 5. The retaining ring body 51 may also be provided with an opening 54 to facilitate quick disassembly of the retaining ring 5 during subsequent inspection or replacement, improving maintenance convenience.

[0031] Furthermore, a protrusion 42 extends from the other end of the locking nut 4, and an inner groove 43 is formed in the protrusion 42, thereby making the force on the end of the locking nut 4 more uniform and enhancing the structural stability.

[0032] In this embodiment, two slots 23 and two insertion openings 24 are provided, respectively arranged on both sides of the other end of the mounting base 2; two locking blocks 13 are also provided, respectively arranged on both sides of one end of the connector 1. Through symmetrical arrangement, the connection between the connector 1 and the mounting base 2 can be strengthened, and structural loosening due to uneven load during operation can be avoided.

[0033] See Figure 3 The external thread section 21 is also provided with a flattened part 25, and the second through hole 31 is provided with a limiting protrusion 32. The limiting protrusion 32 and the flattened part 25 cooperate with each other, which can not only effectively limit the relative rotation between the tool 3 and the mounting base 2, but also achieve precise positioning of the tool 3, thereby improving the stability of the overall assembly and the machining accuracy.

[0034] Specifically, the groove 12 is arranged in a ring at the other end of the connector 1. This ring design not only improves the stability of the snap ring 5 when it is engaged, but also simplifies the installation operation and improves the convenience of assembly.

[0035] See Figure 2 This embodiment also includes a gasket 6, which is fitted onto the external thread section 21. One side of the gasket 6 abuts against the other side of the blade 3, and the other side abuts against the mounting base 2. This double-sided abutment arrangement allows the gasket 6 to simultaneously buffer and isolate the blade 3 and the mounting base 2 during the locking process, preventing direct hard contact and wear caused by force. Furthermore, anti-slip grooves are provided on both sides of the gasket 6. These grooves enhance the friction between the gasket 6 and the blade 3 and the mounting base 2, effectively preventing relative slippage caused by vibration or impact. They also ensure a more even distribution of locking force, guaranteeing stable operation of the blade 3 under high-speed rotation. Therefore, this structure not only extends the overall service life of the blade assembly but also improves the reliability and safety of the food processor during long-term use.

[0036] It should be noted that the detachable blade assembly described in this utility model is not only applicable to food processors, but also to high-speed blenders and similar equipment. Since high-speed blenders typically require higher speeds and stronger mixing and pulverizing capabilities during actual operation, they place higher demands on the fixing strength and operational stability of the blades 3. This utility model, through the double-limiting cooperation of the locking nut 4 and the retaining spring 5, not only ensures that the blades 3 remain firmly locked under high-speed rotation conditions, but also effectively prevents the locking nut 4 from loosening due to vibration or impact, thereby improving the overall safety and durability of the equipment. At the same time, while maintaining a compact design, this structure still possesses good ease of assembly and disassembly, facilitating subsequent maintenance and replacement of the blades 3 by users, further expanding the scope of application and practical value of this utility model.

[0037] In summary, the detachable tool assembly of this utility model uses a locking nut 4 to axially press the tool 3, and the retaining spring 5 effectively prevents the locking nut 4 from loosening or falling off due to vibration or impact, thereby improving the stability and safety of the tool 3. At the same time, while ensuring reliable locking, the assembly has a simple overall structure design, making the disassembly and replacement of the tool 3 more convenient. It avoids the inconvenience and local wear problems caused by complex structures, further improving the long-term performance and maintenance convenience of the equipment.

[0038] The detachable blade assembly of this utility model simplifies the anti-detachment mechanism by using the groove 12 and the retaining spring 5 in a cooperative structure. The overall structure is relatively compact, which can reduce local wear while ensuring the stable installation of the blade 3, thereby improving the long-term reliability and durability of the equipment.

[0039] This utility model's detachable tool assembly, by designing the opening size of the insertion port 24 to be smaller than the width of the slot 23, allows the locking block 13 to form an effective limiting constraint after rotating into the slot 23. This prevents the locking block 13 from accidentally dislodging from the insertion port 24 due to shaking during operation or vibration caused by high-speed motor operation. Therefore, it not only ensures reliable locking between the connector 1 and the mounting base 2, but also improves the stability and safety of the overall structure, and extends the service life of the tool 3 locking structure.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0041] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0043] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A detachable blade assembly for a food processor, the food processor being equipped with a drive motor, characterized in that, include: A connector, one end of which is driven to rotate by a drive motor, and the other end of which is provided with a groove; The mounting base has a first through hole for the connector to pass through, and one end of the mounting base has an external thread section; The cutting tool has a second through hole and is sleeved on the external thread section; A lock nut, which is threaded onto the external thread section and abuts against one side of the tool, to press and fix the tool. It also includes a retaining ring, which is connected in the groove to prevent the locking nut from disengaging axially and thus locking the tool.

2. The detachable blade assembly according to claim 1, characterized in that, The other end of the mounting base is provided with a slot; one end of the connector is provided with a locking block, which is engaged in the slot; the other end of the mounting base is also provided with an embedding port, which is used to connect the slot to the outside and allow the locking block to be engaged in the slot.

3. The detachable blade assembly according to claim 2, characterized in that, The opening size of the insert is smaller than the width of the slot to prevent the card block from coming out during rotation after it is inserted.

4. The detachable blade assembly according to claim 3, characterized in that, One end of the locking nut is provided with an internal thread that mates with the external thread section, and the other end is provided with an embedded groove; after the snap ring is engaged in the groove, its end is engaged in the embedded groove.

5. The detachable blade assembly according to claim 4, characterized in that, The snap ring includes a snap ring body, a first extension arm disposed on one side of the snap ring body, and a second extension arm disposed on the other side of the snap ring body; when the snap ring body is engaged in the recessed groove, both the first extension arm and the second extension arm are engaged in the recessed groove.

6. The detachable blade assembly according to claim 5, characterized in that, The other end of the locking nut extends with a protrusion, and the inner groove is formed in the protrusion.

7. The detachable blade assembly according to claim 2, characterized in that, Two slots and insertion openings are provided and are respectively arranged on both sides of the other end of the mounting base, and two blocks are provided and are respectively arranged on both sides of one end of the connector.

8. The detachable blade assembly according to claim 1, characterized in that, The external thread section is also provided with a flattened part, and the second through hole is provided with a limiting protrusion. The limiting protrusion cooperates with the flattened part to restrict the relative rotation of the tool and the mounting base.

9. The detachable blade assembly according to claim 1, characterized in that, The groove is arranged in a ring shape at the other end of the connector.

10. The detachable blade assembly according to claim 1, characterized in that, The groove has a transition section on the side away from the drive motor.

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