Blade mounting mechanism and stirrer

Abstract

The utility model relates to the technical field of stirrers, in particular to a blade mounting mechanism and a stirrer, the blade mounting mechanism comprises a stirring shaft, a positioning shaft and a first stirring knife assembly, the stirring shaft comprises a first connecting part, a second connecting part, a first sleeving part, a second sleeving part and a stopping part which are sequentially fixed from top to bottom, the first stirring knife assembly comprises a first fixing seat and two first arc-shaped blades, a first containing groove matched with the second sleeving part and a second containing groove matched with the stopping part are formed in the bottom of the first fixing seat, the second sleeving part is embedded into the first containing groove, and the stopping part is embedded into the top of the second containing groove; according to the blade mounting mechanism and the stirring shaft of the stirrer, the blade mounting mechanism and the stirring shaft are formed by different connecting parts, each part can be matched with stirring cutters with different functions, the stirring cutters can be conveniently and quickly mounted or dismounted through the design, the stirring shaft can be matched with various driving accessories, and multifunctional operation is realized.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, specifically to a blade mounting mechanism and a mixer. Background Technology

[0002] In existing mixers, each mixing blade is typically injection molded and connected to the mixing shaft as a single unit. If one part malfunctions during production, the entire blade becomes unusable. In subsequent use, if one mixing blade is damaged, the entire mixing blade needs to be replaced, resulting in high maintenance costs for the mixer. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a blade mounting mechanism and a mixer.

[0004] The objective of this utility model is achieved through the following technical solution: a blade mounting mechanism, comprising a stirring shaft, a positioning shaft fixed to the top of the stirring shaft, and a first stirring blade assembly sleeved at the bottom of the stirring shaft. The stirring shaft comprises a first connecting part, a second connecting part, a first sleeve part, a second sleeve part, and a stop part fixed sequentially from top to bottom. The outer diameters of the first sleeve part, the second sleeve part, and the stop part gradually increase sequentially. The first stirring blade assembly comprises a first fixed seat and two first arc-shaped blades respectively fixed on both sides of the first fixed seat. The bottom of the first fixed seat is provided with a first receiving groove that mates with the second sleeve part and a second receiving groove that mates with the stop part. The second sleeve part is embedded in the first receiving groove, and the stop part is embedded in the top of the second receiving groove. The outer side wall of the second sleeve part is arranged in a ring with a plurality of inclined first limiting blocks. The inner side wall of the first receiving groove is provided with an inclined first limiting groove corresponding to the position of each first limiting block. Each first limiting block is rotated and inserted into the corresponding first limiting groove.

[0005] Furthermore, the blade mounting mechanism also includes a second stirring blade assembly sleeved on the top of the first stirring blade assembly. The second stirring blade assembly includes a second fixing seat and two second arc-shaped blades respectively fixed on both sides of the second fixing seat. The bottom of the second fixing seat is provided with a third receiving groove that mates with the first sleeve and a fourth receiving groove that mates with the top of the first fixing seat. The first sleeve is embedded in the third receiving groove, and the top of the first fixing seat is embedded in the fourth receiving groove. The inner sidewall of the fourth receiving groove has a plurality of vertically arranged second limiting blocks arranged in a ring array. The outer sidewall of the top of the first fixing seat is provided with a vertically arranged second limiting groove corresponding to the position of each second limiting block. Each second limiting block is embedded in the corresponding second limiting groove.

[0006] Furthermore, the two first arc-shaped blades are respectively fixed to the top of one side of the first fixing base and the bottom of the other side of the first fixing base, and the two second arc-shaped blades are respectively fixed to the top of one side of the second fixing base and the bottom of the other side of the second fixing base, with the two first arc-shaped blades and the two second arc-shaped blades arranged alternately.

[0007] Furthermore, a first connecting groove is provided at the top of the stirring shaft, and the bottom of the positioning shaft is embedded in the first connecting groove.

[0008] Another objective of this utility model is achieved through the following technical solution: a mixer, comprising a mixing container and the aforementioned blade mounting mechanism, wherein the blade mounting mechanism is installed inside the mixing container, the mixing container comprising a bottom shell and a cover covering the top of the bottom shell, a positioning groove is provided at the center of the bottom of the cover to cooperate with the top of the positioning shaft, the top of the positioning shaft is rotatably connected to the positioning groove, a transmission assembly is installed on the top of the bottom shell, the transmission assembly comprises a connector, an insertion groove is provided in the lower middle part of the inner side of the mixing shaft, and the top of the connector is inserted into the insertion groove.

[0009] Furthermore, the transmission assembly also includes a transmission shaft rotatably connected to the bottom of the base shell and a transmission joint fixed to the bottom of the transmission shaft. The bottom of the joint has a second connecting groove that mates with the top of the transmission shaft. The top of the transmission shaft is inserted into the second connecting groove. The top center of the transmission joint has a vertically oriented threaded groove. The bottom of the transmission shaft has an external thread structure and is screwed into the threaded groove.

[0010] Furthermore, the transmission assembly also includes a positioning seat fixed to the top of the bottom shell, a sleeve fixed to the inside of the positioning seat, and a waterproof sleeve fixed between the positioning seat and the sleeve. The top of the transmission shaft passes through the sleeve and is inserted into the second connecting groove.

[0011] Furthermore, the bottom edge of the waterproof cylinder is folded outward to form an annular protrusion, and an annular groove is provided in the middle of the inner side of the positioning seat. The annular protrusion on the bottom edge of the waterproof cylinder is inserted into the annular groove.

[0012] Furthermore, a limiting notch is provided on the top outer wall of the drive shaft, and a limiting protrusion that cooperates with the limiting notch is provided in the second connecting groove, with the limiting protrusion embedded in the limiting notch.

[0013] Furthermore, a sealing ring is fitted onto the outer wall of the drive shaft, with the top and bottom of the sealing ring abutting between the bottom of the connector and the top of the waterproof cylinder, respectively.

[0014] The beneficial effects of this utility model are as follows: The blade mounting mechanism and the stirring shaft of the mixer are composed of different connecting parts, each of which can be adapted to stirring blades with different functions. This design allows the stirring blades to be installed or removed easily and quickly. The stirring shaft can be adapted to various drive accessories to achieve multi-functional operation. At the same time, worn or damaged stirring blades can be replaced in a timely manner, effectively reducing maintenance costs and improving efficiency and convenience. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is an exploded perspective view of this utility model.

[0017] Figure 3 This is a cross-sectional view of the present invention.

[0018] Figure 4 This is a perspective view of the stirring shaft described in this utility model.

[0019] Figure 5 This is a perspective view of the first stirring blade of this utility model.

[0020] Figure 6 This is a perspective view of the second fixing base of this utility model.

[0021] Figure 7 This is a perspective view of the connector described in this utility model.

[0022] Figure 8 This is a perspective view of the positioning seat described in this utility model.

[0023] Figure 9 This is a perspective view of the mixer described in this utility model.

[0024] Figure 10 This is a perspective view of the mixer of the present invention with the cover removed.

[0025] Figure 11 This is a perspective view of the transmission component and the bottom shell described in this utility model.

[0026] Figure 12 This is a perspective view of the cover body described in this utility model.

[0027] The reference numerals in the attached drawings are as follows: stirring shaft 1, first connecting part 11, keyway 111, second connecting part 12, first sleeve part 13, second sleeve part 14, first limiting block 141, stop part 15, insertion groove 16, first connecting groove 17, positioning shaft 2, rib 21, first stirring blade assembly 3, first fixing seat 31, first receiving groove 311, second receiving groove 312, first limiting groove 313, second limiting groove 314, first arc-shaped blade 32, second stirring blade assembly 4. Second fixed seat 41, third receiving groove 411, fourth receiving groove 412, second limiting block 413, second arc-shaped blade 42, stirring container 5, bottom shell 51, cover 52, positioning groove 53, transmission assembly 6, connector 61, transmission shaft 62, limiting notch 621, transmission joint 63, second connecting groove 64, limiting protrusion 641, threaded groove 65, positioning seat 66, annular groove 661, sleeve 67, waterproof sleeve 68, annular protrusion 681, sealing ring 7. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figure 1-12 The present invention will be further described below. The content mentioned in the embodiments is not intended to limit the present invention.

[0029] See Figure 1-8 A blade mounting mechanism includes a stirring shaft 1, a positioning shaft 2 fixed to the top of the stirring shaft 1, and a first stirring blade assembly 3 sleeved on the bottom of the stirring shaft 1. The stirring shaft 1 includes a first connecting part 11, a second connecting part 12, a first sleeve part 13, a second sleeve part 14, and a stop part 15 fixed from top to bottom, with the outer diameters of the first sleeve part 13, the second sleeve part 14, and the stop part 15 gradually increasing. The first stirring blade assembly 3 includes a first fixing seat 31 and two first arc-shaped blades 32 respectively fixed on both sides of the first fixing seat 31. The bottom of the base 31 has a first receiving groove 311 that mates with the second socket 14 and a second receiving groove 312 that mates with the stop 15. The second socket 14 is embedded in the first receiving groove 311, and the stop 15 is embedded in the top of the second receiving groove 312. The outer side wall of the second socket 14 has a plurality of inclined first limiting blocks 141 arranged in a ring array. The inner side wall of the first receiving groove 311 has an inclined first limiting groove 313 corresponding to the position of each first limiting block 141. Each first limiting block 141 is rotated and snapped into the corresponding first limiting groove 313. Specifically, the outer side wall of the first connecting part 11 has a plurality of keyways 111 arranged in a ring array. The cross-section of the second connecting part 12 is a regular hexagon. The first connecting part 11 or the second connecting part 12 can be used to drive accessories such as a cutting plate for cutting vegetables.

[0030] The blade mounting mechanism and the mixing shaft 1 of this utility model are composed of different connecting parts, each of which can be adapted to mixing blades with different functions. This design allows the mixing blades to be installed or removed easily and quickly. The mixing shaft 1 can be adapted to various drive accessories to achieve multi-functional operation. At the same time, worn or damaged mixing blades can be replaced in a timely manner, effectively reducing maintenance costs and improving efficiency and convenience.

[0031] In this embodiment, the blade mounting structure further includes a second stirring blade assembly 4 sleeved on the top of the first stirring blade assembly 3. The second stirring blade assembly 4 includes a second fixing seat 41 and two second arc-shaped blades 42 respectively fixed on both sides of the second fixing seat 41. The bottom of the second fixing seat 41 is provided with a third receiving groove 411 that cooperates with the first sleeve part 13 and a fourth receiving groove 412 that cooperates with the top of the first fixing seat 31. The first sleeve part 13 is embedded in the third receiving groove 411, and the top of the first fixing seat 31 is embedded in the fourth receiving groove 412. The inner sidewall of the fourth receiving groove 412 is arranged in a ring with a plurality of vertically arranged second limiting blocks 413. The outer sidewall of the top of the first fixing seat 31 is provided with a vertically arranged second limiting groove 314 corresponding to the position of each second limiting block 413. Each second limiting block 413 is embedded in the corresponding second limiting groove 314. The above structure is used to fix the second stirring blade assembly 4 to the top of the first fixing base 31, and can also prevent the second stirring blade assembly 4 from rotating relative to the stirring shaft 1 during operation.

[0032] In this embodiment, two first arc-shaped blades 32 are respectively fixed to the top of one side of the first fixing base 31 and the bottom of the other side of the first fixing base 31, and two second arc-shaped blades 42 are respectively fixed to the top of one side of the second fixing base 41 and the bottom of the other side of the second fixing base 41. The two first arc-shaped blades 32 and the two second arc-shaped blades 42 are arranged alternately. By placing the two first arc-shaped blades 32 and the two second arc-shaped blades 42 in different planes, food on different planes can be cut, resulting in faster food shredding and improved cutting efficiency. The combination of the two first arc-shaped blades 32 and the two second arc-shaped blades 42 forms a windmill shape, and the alternating arrangement ensures that the food is cut multiple times as it passes through the cutting area, enabling rapid shredding of the food and improving cutting efficiency.

[0033] In this embodiment, the top of the stirring shaft 1 is provided with a first connecting groove 17, and the bottom of the positioning shaft 2 is embedded in the first connecting groove 17. Specifically, both the first connecting groove 17 and the positioning shaft 2 have circular cross-sections, and the bottom outer wall of the positioning shaft 2 has a plurality of ribs 21 arranged in a ring, so that the bottom of the positioning shaft 2 can be tightly inserted into the second first connecting groove 17. The above structure facilitates the installation of the positioning shaft 2.

[0034] See Figure 9-12A mixer includes a mixing container 5 and the aforementioned blade mounting mechanism. The blade mounting mechanism is installed inside the mixing container 5. The mixing container 5 includes a bottom shell 51 and a cover 52 covering the top of the bottom shell 51. A positioning groove 53 is formed at the center of the bottom of the cover 52, which mates with the top of a positioning shaft 2. The top of the positioning shaft 2 is rotatably connected to the positioning groove 53. A transmission assembly 6 is mounted on the top of the bottom shell 51. The transmission assembly 6 includes a connector 61. A insertion groove 16 is formed in the lower middle part of the inner side of the mixing shaft 1, and the top of the connector 61 is inserted into the insertion groove 16. Specifically, the cross-section of both the insertion groove 16 and the connector 61 is hexagonal. The positioning groove 53 provides a connection point to the top of the mixing shaft 1, improving the stability of the machine during operation.

[0035] In this embodiment, the transmission assembly 6 further includes a transmission shaft 62 rotatably connected to the bottom of the base shell 51 and a transmission connector 63 fixed to the bottom of the transmission shaft 62. The bottom of the connector 61 has a second connecting groove 64 that mates with the top of the transmission shaft 62, and the top of the transmission shaft 62 is inserted into the second connecting groove 64. The top center of the transmission connector 63 has a vertically oriented threaded groove 65, and the bottom of the transmission shaft 62 has an external thread structure, with the bottom of the transmission shaft 62 screwed into the threaded groove 65. By providing an external thread structure at the bottom of the transmission shaft 62 and a threaded groove 65 at the top of the transmission connector 63, the installation and disassembly of the transmission shaft 62 are made more convenient.

[0036] In this embodiment, a limiting notch 621 is formed on the top outer wall of the drive shaft 62, and a limiting protrusion 641 that cooperates with the limiting notch 621 is formed in the second connecting groove 64. The limiting protrusion 641 is embedded in the limiting notch 621. The above structure is used to fix the connector 61 to the top of the drive shaft 62. The drive shaft 62 drives the rotation of the stirring shaft 1, which in turn drives the rotation of the first stirring blade assembly 3 and the second stirring blade assembly 4.

[0037] In this embodiment, the transmission assembly 6 further includes a positioning seat 66 fixed to the bottom of the base shell 51, a sleeve 67 fixed to the inner side of the positioning seat 66, and a waterproof sleeve 68 fixed between the positioning seat 66 and the sleeve 67. The top of the transmission shaft 62 passes through the sleeve 67 upwards and is inserted into the second connecting groove 64. By setting the positioning seat 66, the installation and positioning of the transmission shaft 62 becomes more convenient. By setting the sleeve 67, the shaking of the transmission shaft 62 during operation can be reduced, enhancing the stability of the mixer during operation. By setting the waterproof sleeve 68, liquid in the mixing cup can be prevented from entering the insertion groove 16 of the mixing shaft 1, protecting the parts inside the mixing shaft 1 from damage by the liquid in the mixing cup.

[0038] In this embodiment, the bottom edge of the waterproof cylinder 68 is folded outward to form an annular protrusion 681, and an annular groove 661 is provided in the middle of the inner side of the positioning seat 66. The annular protrusion 681 on the bottom edge of the waterproof cylinder 68 is inserted into the annular groove 661. The annular protrusion 681 is inserted into the annular groove 661 to form a sealing structure, which can prevent liquid in the stirring cup from entering the interior of the stirring shaft 1 and protect the parts inside the stirring shaft 1 from damage by the liquid in the stirring cup.

[0039] In this embodiment, a sealing ring 7 is fitted onto the outer wall of the drive shaft 62, with the top and bottom of the sealing ring 7 abutting between the bottom of the connector 61 and the top of the waterproof cylinder 68, respectively. This structure further prevents the stirring liquid from entering the interior of the stirring shaft 1, enhancing its waterproof performance.

[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A blade mounting mechanism, the blade mounting mechanism comprising a stirring shaft, a positioning shaft fixed to the top of the stirring shaft, and a first stirring blade assembly sleeved on the bottom of the stirring shaft, characterized in that: The stirring shaft includes a first connecting part, a second connecting part, a first sleeve part, a second sleeve part, and a stop part, which are fixed from top to bottom. The outer diameters of the first sleeve part, the second sleeve part, and the stop part gradually increase. The first stirring blade assembly includes a first fixed base and two first arc-shaped blades fixed on both sides of the first fixed base. The bottom of the first fixed base is provided with a first receiving groove that mates with the second sleeve part and a second receiving groove that mates with the stop part. The second sleeve part is embedded in the first receiving groove, and the stop part is embedded in the top of the second receiving groove. The outer side wall of the second sleeve part has a plurality of inclined first limiting blocks arranged in a ring array. The inner side wall of the first receiving groove is provided with an inclined first limiting groove corresponding to the position of each first limiting block. Each first limiting block is rotated and inserted into the corresponding first limiting groove.

2. The blade mounting mechanism according to claim 1, characterized in that: The blade mounting mechanism further includes a second stirring blade assembly sleeved on the top of the first stirring blade assembly. The second stirring blade assembly includes a second fixing seat and two second arc-shaped blades respectively fixed on both sides of the second fixing seat. The bottom of the second fixing seat is provided with a third receiving groove that mates with the first sleeve and a fourth receiving groove that mates with the top of the first fixing seat. The first sleeve is embedded in the third receiving groove, and the top of the first fixing seat is embedded in the fourth receiving groove. The inner sidewall of the fourth receiving groove is arranged in a ring with a plurality of vertically arranged second limiting blocks. The outer sidewall of the top of the first fixing seat is provided with a vertically arranged second limiting groove corresponding to the position of each second limiting block. Each second limiting block is embedded in the corresponding second limiting groove.

3. The blade mounting mechanism according to claim 2, characterized in that: Two first arc-shaped blades are respectively fixed to the top of one side of the first fixing base and the bottom of the other side of the first fixing base, and two second arc-shaped blades are respectively fixed to the top of one side of the second fixing base and the bottom of the other side of the second fixing base, with the two first arc-shaped blades and the two second arc-shaped blades arranged alternately.

4. The blade mounting mechanism according to claim 1, characterized in that: The top of the stirring shaft has a first connecting groove, and the bottom of the positioning shaft is embedded in the first connecting groove.

5. A mixer, the mixer comprising a mixing container, characterized in that: The mixer further includes the blade mounting mechanism as described in any one of claims 1-4. The blade mounting mechanism is installed inside the mixing container, which includes a bottom shell and a cover covering the top of the bottom shell. A positioning groove is provided at the center of the bottom of the cover to cooperate with the top of the positioning shaft. The top of the positioning shaft is rotatably connected to the positioning groove. A transmission assembly is installed on the top of the bottom shell. The transmission assembly includes a connector. An insertion groove is provided in the lower middle part of the inner side of the mixing shaft. The top of the connector is inserted into the insertion groove.

6. A mixer according to claim 5, characterized in that: The transmission assembly also includes a transmission shaft rotatably connected to the bottom of the base shell and a transmission joint fixed to the bottom of the transmission shaft. The bottom of the joint has a second connecting groove that mates with the top of the transmission shaft. The top of the transmission shaft is inserted into the second connecting groove. The top center of the transmission joint has a vertically oriented threaded groove. The bottom of the transmission shaft has an external thread structure and is screwed into the threaded groove.

7. A mixer according to claim 6, characterized in that: The transmission assembly also includes a positioning seat fixed to the top of the bottom shell, a sleeve fixed to the inside of the positioning seat, and a waterproof sleeve fixed between the positioning seat and the sleeve. The top of the transmission shaft passes through the sleeve and is inserted into the second connecting groove.

8. A mixer according to claim 7, characterized in that: The bottom edge of the waterproof cylinder is folded outward to form an annular protrusion, and an annular groove is provided in the middle of the inner side of the positioning seat. The annular protrusion on the bottom edge of the waterproof cylinder is inserted into the annular groove.

9. A mixer according to claim 6, characterized in that: A limiting notch is provided on the top outer side wall of the drive shaft, and a limiting protrusion that matches the limiting notch is provided in the second connecting groove, with the limiting protrusion embedded in the limiting notch.

10. A mixer according to claim 7, characterized in that: A sealing ring is fitted onto the outer wall of the drive shaft, with the top and bottom of the sealing ring abutting between the bottom of the connector and the top of the waterproof cylinder, respectively.

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