A new type of stirring cutter
By designing a new type of mixing blade in the mixer and using a combination of various cutting blades and mixing paddle blades, the problem of uneven grinding caused by the adhesion of material residue was solved, and a uniform and delicate grinding effect was achieved.
Patent Information
- Application Number
- CN202522417588.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-14
AI Technical Summary
During the grinding process, the grinding blades of existing mixers tend to cause residue to adhere to the walls of the mixing cup, especially near the edge of the cup, resulting in uneven grinding and an inability to achieve a sufficiently fine finish.
A novel stirring blade is designed, including a blade assembly, a rotating shaft, a base, a stirring component, and a fastening component. By installing the stirring component at the top of the rotating shaft, and utilizing the first and second stirring blades located near the edge and center of the stirring cup, combined with the rotational cutting force of multiple cutting blades, the material residue is ensured to be uniformly ground throughout the stirring cup.
It achieves uniform and fine grinding of the residue inside the mixing cup, improves the grinding quality, and overcomes the defect of existing technology where the mixing blades have difficulty grinding the residue adhering to the cup wall.
Smart Images
Figure CN224938011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stirring tool manufacturing technology, and in particular to a novel stirring tool. Background Technology
[0002] The existing mixer's mixing blades mainly consist of a base, a rotating shaft, and mixing blades. The base is located at the bottom of the mixing cup and connected to the rotating shaft via bearings. The bottom end of the rotating shaft is connected to the mixer's power unit, while the mixing blades are mounted on the top of the rotating shaft, close to the bottom of the mixing cup. During the grinding process, the material sinks to the bottom of the mixing cup under gravity, where the mixing blades cut and grind it into slag. The slag is repeatedly pushed up, allowing it to sink and circulate through the mixing blades for continuous grinding. However, during the grinding process, some slag inevitably adheres to the wall of the mixing cup. If the slag adheres to areas that the mixing blades cannot reach or effectively work on, such as near the edge of the mixing cup, the slag cannot be further ground by the mixing blades, resulting in unevenly sized and less finely ground slag. Summary of the Invention
[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a new type of stirring tool that can achieve uniform, thorough and delicate grinding and improve grinding quality.
[0004] This utility model achieves the above objectives as follows: This utility model discloses a novel stirring blade, comprising a blade assembly, a rotating shaft, a base, a stirring assembly, and a fastening assembly. The fastening assembly includes an upper clamping plate, a lower clamping plate, and a sealing ring. The base, the sealing ring, the lower clamping plate, the blade assembly, and the upper clamping plate are sequentially fitted onto the rotating shaft from bottom to top. The rotating shaft is movably connected to the base. The stirring assembly is mounted on the top of the rotating shaft and connected thereto. The stirring assembly includes a first stirring blade, a second stirring blade, a mounting sleeve, and a connecting post. The second stirring blade and the mounting sleeve are screwed to the top of the connecting post. The first stirring blade is fixedly connected to the top of the mounting sleeve. The bottom of the connecting post is recessed upward to form a connecting cavity. The inner wall of the connecting cavity is provided with a connecting thread section. The rotating shaft is also provided with a first thread section that cooperates with the upper clamping plate and the connecting thread section.
[0005] Furthermore, the blade assembly includes an upper bevel cutting blade, a flat cutting blade, and a lower bevel cutting blade arranged sequentially from top to bottom.
[0006] Furthermore, the base includes a seat outer sleeve, a bearing, a bearing reinforcing sleeve, and an inner sealing ring. The seat outer sleeve extends upwardly in the middle to form a mounting cavity. The top of the mounting cavity has a shaft hole for the rotating shaft to pass through. The bearing reinforcing sleeve is fitted into the mounting cavity. The bearing reinforcing sleeve has a sealing cavity and a receiving cavity. The inner sealing ring is sealed and fitted into the sealing cavity. The bearing is fitted into the receiving cavity. The diameter of the receiving cavity is larger than the diameter of the sealing cavity. The inner sealing ring also abuts and seals against the top of the mounting cavity.
[0007] Furthermore, the outer edge of the seat cover extends laterally outward to form a sealing bottom cover.
[0008] Furthermore, a drive wheel is also fitted into the bottom end of the rotating shaft, and the drive wheel is connected to the power output mechanism.
[0009] Furthermore, it also includes a sealing sleeve, which is fitted into the bottom inlet of the mounting cavity. The sealing sleeve includes an outer reinforcing ring block and an inner nest with a cap. The outer reinforcing ring block is wrapped around and connected to the outer wall of the inner nest, and is integral with the outer wall of the inner nest and the top of the cap. The outer reinforcing ring block has a plurality of reinforcing protrusions around the inner nest. The top of the inner nest has an opening for the rotating shaft to pass through, and a stepped surface is formed at the opening. The reinforcing protrusions are higher than the inner nest, and the top of the reinforcing protrusions is frustoconical and abuts against the bearing reinforcing sleeve.
[0010] Furthermore, a connecting sleeve is fixedly connected to the bottom end of the rotating shaft. The connecting sleeve has a polygonal mounting cavity that is assembled with the power output mechanism. The connecting sleeve is embedded in the inner nest of the sealing sleeve.
[0011] The beneficial effects of this utility model are: This utility model provides a novel stirring blade, which, in addition to a base, fastening assembly, blade assembly, and rotating shaft, also includes a stirring component mounted on the top of the rotating shaft. The top of the rotating shaft has a first threaded section. The stirring component includes a first stirring blade, a second stirring blade, a mounting sleeve, and a connecting post. The bottom of the connecting post has a connecting cavity that is screwed to the first threaded section. The connecting post and the upper clamping plate are screwed to the first threaded section, thus securing the blade assembly to the rotating shaft. The first stirring blade is fixedly connected to the mounting sleeve, and the second stirring blade and the mounting sleeve are screwed to the top of the connecting post. This positions the first and second stirring blades near the edge and center of the mixing cup. When the rotating shaft rotates, the first and second stirring blades, along with the blade assembly, can thoroughly grind the material residue inside the mixing cup and adhering to the upper, middle, and lower parts of the mixing cup wall. This overcomes the shortcomings of previous mixers where the blades could not effectively grind the residue adhering to higher parts of the mixing cup, ensuring uniform and fine grinding and improving grinding quality. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of a novel stirring blade in one embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a novel stirring blade in one embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram showing the connection relationship between the base and the rotating shaft in one embodiment of the present invention; Figure 4 This is a schematic diagram of the overall and bottom structure of the seat cover in one embodiment of the present invention; Figure 5 This is a schematic diagram showing the connection relationship between the rotating shaft, the sealing sleeve, and the bearing reinforcing sleeve in one embodiment of the present invention; Figure 6 This is a schematic diagram of the internal and external structure of the bearing reinforcing sleeve in one embodiment of the present invention; Figure 7 This is a schematic diagram showing the connection relationship between the bearing, fastening assembly, sealing sleeve and rotating shaft in one embodiment of the present invention; Figure 8 This is a schematic diagram of the sealing sleeve in one embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the rotating shaft in one embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the rotating shaft in another embodiment of the present invention; Figure 11 This is a schematic diagram of the bottom structure of a novel stirring blade according to another embodiment of the present invention; Figure 12 This is a schematic diagram showing the connection relationship between the bearing reinforcing sleeve and the rotating shaft in another embodiment of the present invention; Figure 13 This is a schematic diagram of the connecting column structure of the stirring assembly in one embodiment of the present invention.
[0013] In the diagram, 1 is the blade assembly, 2 is the rotating shaft, 3 is the base, 4 is the fastening assembly, 41 is the upper clamping plate, 42 is the lower clamping plate, 43 is the sealing fastening ring, 21 is the first threaded section, 11 is the upper bevel cutting blade, 12 is the flat cutting blade, 13 is the lower bevel cutting blade, 31 is the seat outer sleeve, 32 is the bearing, 33 is the bearing reinforcing sleeve, 34 is the inner sealing ring, 311 is the mounting cavity, 312 is the shaft hole, 331 is the sealing cavity, 332 is the receiving cavity, 313 is the sealing bottom cover, 333 is the threaded connection section, and 5 is the drive. Wheel, 35 sealing sleeve, 351 outer reinforcing ring block, 352 inner nest, 3521 sealing cap, 3511 reinforcing protrusion, 3522 opening, 35221 stepped surface, 22 connecting sleeve, 221 polygonal mounting cavity, 6 stirring assembly, 61 first stirring blade, 62 second stirring blade, 63 mounting sleeve, 611 upper inclined stirring blade, 612 lower inclined stirring blade, 64 connecting post, 641 connecting cavity, 6411 connecting threaded section. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0015] Figure 1-4 The figure illustrates the specific structure of a novel stirring blade, characterized by comprising a blade assembly 1, a rotating shaft 2, a base 3, and a fastening assembly 4. The fastening assembly includes an upper clamping plate 41, a lower clamping plate 42, and a sealing ring 43. The base 3, the sealing ring 43, the lower clamping plate 42, the blade assembly 1, and the upper clamping plate 41 are sequentially mounted on the rotating shaft 2 from bottom to top. The rotating shaft 2 is movably connected to the base 3. The rotating shaft 2 also has a first threaded section 21 that cooperates with the upper clamping plate 41. The blade assembly 1 includes an upper oblique cutting blade 11, a flat cutting blade 12, and a lower oblique cutting blade 13 from top to bottom.
[0016] Compared to existing technologies, this utility model provides a novel stirring blade. Besides a base 3, a fastening assembly 4, a blade assembly 1, and a rotating shaft 2, the stirring blade also includes a stirring assembly 6 mounted on the top of the rotating shaft 2. The top of the rotating shaft 2 has a first threaded section 21. The stirring assembly 6 includes a first stirring blade 61, a second stirring blade 62, a mounting sleeve 63, and a connecting post 64. The bottom of the connecting post 64 has a connecting recess 641 that is screwed onto the first threaded section 21. The connecting post 64 and the upper clamping plate 41, through screwing onto the first threaded section 21, securely connect the blade assembly 1 to the rotating shaft 2. A stirring blade 61 is fixedly connected to the mounting sleeve 63, and a second stirring blade 62 and the mounting sleeve 63 are screwed to the top of the connecting post 64. Thus, the first stirring blade 61 and the second stirring blade 62 are located near the edge and center of the mixing cup. When the shaft rotates, the first stirring blade 61, the second stirring blade 62, and the blade assembly 1 can thoroughly grind the material residue inside the mixing cup and the residue adhering to the upper, middle, and lower parts of the mixing cup wall. This overcomes the defect of previous mixer blades that were difficult to grind the material residue adhering to the upper part of the mixing cup, thereby ensuring that the grinding is uniform and fine and improving the grinding quality.
[0017] Furthermore, in this embodiment, as Figure 1 and Figure 2 As shown, the blade assembly 1 includes, from top to bottom, an upper oblique cutting blade 11, a flat cutting blade 12, and a lower oblique cutting blade 13. Driven by the power unit of the mixer, the rotating shaft 2 drives the upper oblique cutting blade 11, the flat cutting blade 12, and the lower oblique cutting blade 13 to rotate. The cutting force generated by the rotation of the upper oblique cutting blade 11, the flat cutting blade 12, and the lower oblique cutting blade 13 is transmitted to the mixing cup along the direction of the corresponding blades, so that the cutting force is uniform in all parts of the mixing cup, further ensuring uniform grinding of materials. The first stirring blade 61 includes an upper oblique stirring blade 611 and a lower oblique stirring blade 612.
[0018] Furthermore, in this embodiment, as Figures 3-6As shown, the base 3 includes a seat outer sleeve 31, a bearing 32, a bearing reinforcing sleeve 33, and an inner sealing ring 34. The seat outer sleeve 31 extends upwardly in the middle to form a mounting cavity 311. The top of the mounting cavity 311 has a shaft hole 312 for the rotating shaft 2 to pass through. The bearing reinforcing sleeve 33 is fitted into the mounting cavity 311. The bearing reinforcing sleeve 33 has a sealing cavity 331 and a receiving cavity 332. The sealing cavity 331 and the receiving cavity 332 are connected and their axes coincide. The inner sealing ring 34 is sealed and fitted into the sealing cavity 331. The bearing 32 is fitted into the receiving cavity 332. The diameter of the receiving cavity 332 is larger than the diameter of the sealing cavity 331. The inner sealing ring 34 also abuts against and seals against the bearing 32. The top of the mounting cavity 311 is sealed to the rotating shaft 2 and the bearing 32 to prevent material in the mixing cup from leaking into the base and the mixer power unit. The bearing reinforcing sleeve 33 separates the bearing 32 from the outer sleeve 31, protecting the bearing 32 and preventing deformation. It also increases the thickness of the outer sleeve 31 to enhance its resistance to deformation. In addition, the diameter of the accommodating cavity 332 is designed to be larger than the diameter of the sealing cavity 331, which can form a stepped structure in the bearing reinforcing sleeve 33. This stepped structure can increase the resistance to deformation of the bearing reinforcing sleeve 33, making the bearing reinforcing sleeve 33, the bearing 32, and the inner sealing ring 4 fit tightly together.
[0019] Furthermore, in this embodiment, as Figures 1-3 As shown, the sealing fastening ring 43 is located between the lower clamping plate 42 and the seat outer sleeve 31. The bottom of the sealing fastening ring 43 is sealed to the top of the rotating shaft 2 and the seat outer sleeve 31 to prevent material from leaking into the interior of the seat outer sleeve 31 and between the seat outer sleeve 31 and the rotating shaft 2, thus affecting the operation of the rotating shaft 2. The upper clamping plate 41 and the lower clamping plate 42 separate the blade assembly 1 from the connecting column 64 and the sealing fastening ring 43 to reduce the impact of the blade assembly 1 on the connecting column 64 and the seat outer sleeve 31 when it rotates.
[0020] Furthermore, in one embodiment, as shown in the figure, the outer edge of the bottom of the outer sleeve 31 extends laterally to form a sealing bottom cover 313, which is sealed to the bottom of the mixing cup to prevent the material inside the mixing cup from seeping into and leaking into the power unit of the mixing cup.
[0021] Furthermore, in another embodiment, such as Figure 3 and Figure 4As shown, the bearing reinforcing sleeve 33 also has a threaded connection section 333 extending downward from its bottom end. The threaded connection section 33 protrudes outward from the bottom of the outer sleeve 31. The bearing reinforcing sleeve 33 can be screwed to the mixing cup or to the output end of the power unit of the mixer via this exposed threaded connection section 333. Further, in other embodiments, such as... Figure 10 , Figure 11 and Figure 12 As shown, a drive wheel 5 is also sleeved at the bottom end of the rotating shaft 2, and the drive wheel 5 is connected to the power output mechanism, i.e., the power device of the mixer.
[0022] Furthermore, in this embodiment, as Figure 2 , Figure 5 , Figure 7 and Figure 8 As shown, it also includes a sealing sleeve 35, which is fitted into the bottom inlet of the mounting cavity 311 to seal and block the interior of the outer sleeve 31. The sealing sleeve 35 includes an outer reinforcing ring block 351 and an inner nest 352 with a cover 3521. The outer reinforcing ring block 351 is sleeved around the outer wall of the inner nest 352 and is integral with the outer wall of the inner nest 352 and the top of the cover 3521. The outer reinforcing ring block 351 has a plurality of reinforcing protrusions 3511 around the inner nest 352. The top of the inner nest 352 has an opening 3522 for the rotating shaft to pass through, and a stepped surface is formed at the opening 3522. 35221, and the reinforcing protrusion 3511 extends above the inner nest 352. The top of the reinforcing protrusion 3511 is frustoconical and abuts against the bearing reinforcing sleeve 33. The top of the reinforcing protrusion 3511 is designed as frustoconical and extends above the inner nest 352. In addition, the reinforcing protrusions 3511 are spaced at a certain distance, so that the reinforcing protrusions 3511 have a certain deformation capacity. This is beneficial for sealing the sealing sleeve 35 into the mounting cavity 311 of the outer sleeve 31 of the seat, and also for maintaining the shape of the inner nest 352, preventing the rotating shaft 2 from deforming and affecting the rotation of the blade assembly 1 and the stirring assembly 6.
[0023] Furthermore, in this embodiment, as Figure 2 and Figure 9 As shown, a connecting sleeve 22 is fixedly connected to the bottom end of the rotating shaft 2. The connecting sleeve 22 has a polygonal mounting cavity 221 that is assembled with the power output mechanism, i.e., the power device of the mixer. The connecting sleeve 22 is embedded in the inner nest 352 of the sealing sleeve 35. The rotating shaft 2 is tightly connected to the power output mechanism through the connecting sleeve 22.
[0024] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made with respect to the claims and scope of the present utility model should fall within the scope of the claims of the present utility model.
Claims
1. A novel stirring blade, characterized in that: The assembly includes a blade assembly (1), a rotating shaft (2), a base (3), a stirring assembly (6), and a fastening assembly (4). The fastening assembly (4) includes an upper clamping plate (41), a lower clamping plate (42), and a sealing ring (43). The base (3), the sealing ring (43), the lower clamping plate (42), the blade assembly (1), and the upper clamping plate (41) are sequentially mounted on the rotating shaft (2) from bottom to top. The rotating shaft (2) is movably connected to the base (3). The stirring assembly (6) is installed at the top of the rotating shaft (2). The stirring assembly (6) includes a first stirring paddle. The components include a blade (61), a second stirring blade (62), a mounting sleeve (63), and a connecting column (64). The second stirring blade (62) and the mounting sleeve (63) are screwed to the top of the connecting column (64). The first stirring blade (61) is fixedly connected to the top of the mounting sleeve (63). The bottom of the connecting column (64) is recessed upward to form a connecting cavity (641). The inner wall of the connecting cavity (641) is provided with a connecting thread section (6411). The rotating shaft (2) is also provided with a first thread section (21) that cooperates with the upper clamping plate (41) and the connecting thread section (6411).
2. The novel stirring blade according to claim 1, characterized in that: The blade assembly (1) includes an upper oblique cutting blade (11), a flat cutting blade (12), and a lower oblique cutting blade (13) arranged sequentially from top to bottom.
3. The novel stirring blade according to claim 1, characterized in that: The base (3) includes a seat outer sleeve (31), a bearing (32), a bearing reinforcing sleeve (33), and an inner sealing ring (34). The seat outer sleeve (31) extends upward in the middle to form an installation cavity (311). The top of the installation cavity (311) is provided with a shaft hole (312) for the rotating shaft (2) to pass through. The bearing reinforcing sleeve (33) is fitted into the installation cavity (311). The bearing reinforcing sleeve (33) has a sealing cavity (331) and a receiving cavity (332). The inner sealing ring (34) is sealed and fitted into the sealing cavity (331). The bearing (32) is fitted into the receiving cavity (332). The diameter of the receiving cavity (332) is larger than the diameter of the sealing cavity (331). The inner sealing ring (34) also abuts and seals against the top of the installation cavity (311).
4. The novel stirring blade according to claim 3, characterized in that: The outer edge of the seat cover (31) extends laterally outward to form a sealing bottom cover (313).
5. The novel stirring blade according to claim 1, characterized in that: The bottom end of the rotating shaft (2) is also fitted with a drive wheel (5), which is connected to the power output mechanism.
6. A novel stirring blade according to claim 3 or 4, characterized in that: It also includes a sealing sleeve (35), which is fitted into the bottom entrance of the mounting cavity (311). The sealing sleeve (35) includes an outer reinforcing ring block (351) and an inner nest (352) with a cover (3521). The outer reinforcing ring block (351) is wrapped around the outer wall of the inner nest (352) and is integrated with the outer wall of the inner nest (352) and the top of the cover (3521). The outer reinforcing ring block (351) has a plurality of reinforcing protrusions (3511) around the inner nest (352). The top of the inner nest (352) has an opening (3522) for the rotating shaft (2) to pass through. A stepped surface (35221) is also formed at the opening (3522). The reinforcing protrusions (3511) are higher than the inner nest (352). The top of the reinforcing protrusions (3511) is frustoconical and abuts against the bearing reinforcing sleeve (33).
7. The novel stirring blade according to claim 6, characterized in that: The bottom end of the rotating shaft (2) is fixedly connected to a connecting sleeve (22), the connecting sleeve (22) has a polygonal mounting cavity (221) for assembly with the power output mechanism, and the connecting sleeve (22) is embedded in the inner nest (352) of the sealing sleeve.