Blender

Abstract

This utility model discloses a stirring cup, including a cup body and a stirring assembly. A fixed shaft is provided at the inner bottom of the cup body, and both the cup body and the fixed shaft are made of metal. The stirring assembly includes an outer shell, a drive magnet, and a stirring element. The outer shell is made of plastic, the drive magnet is placed inside the outer shell, and the stirring element is fixed to the outer periphery of the outer shell. The key feature is that a plastic bushing is fixed to the outer periphery of the fixed shaft, and the outer shell is rotatably fitted onto the outer periphery of the plastic bushing, with the bottom of the outer shell resting on the plastic bushing. This stirring cup, by fixing a plastic bushing to the outer periphery of the fixed shaft, uses the same material as the outer shell of the stirring assembly. Since plastic has a lower hardness than metal, this effectively reduces the harsh noise generated during operation due to friction and collision between the plastic bushing and the outer shell, thus lowering the overall noise level.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a stirring cup. Background Technology

[0002] Existing mixing cups, such as milk frothers, are described in Chinese Utility Model Patent CN221635554U, entitled "A Milk Frother and Its Separable Milk Frother," with an authorization announcement date of September 3, 2024. These cups include: a cup body made of non-magnetic stainless steel; and a mixing mechanism comprising a rotating shaft fixed to the bottom of the cup body and a rotating body movably mounted on the rotating shaft. The rotating body is provided with an upper magnet, and the rotating shaft has an internal mounting cavity containing magnetic steel balls that can be attracted to the upper magnet to constrain the rotating body onto the rotating shaft. This utility model has a simple and reasonable structure. Because the steel balls on the rotating shaft and the upper magnet on the rotating body create an attractive force, the rotating body will not be poured out when the liquid in the milk frother is poured out.

[0003] However, the above-mentioned milk frother still has the following shortcomings: (1) The cup body and the rotating shaft are made of magnetic stainless steel, while the outer shell of the rotating body is generally made of lightweight plastic for the sake of rotation effect and cost consideration. When working, the rotating groove of the outer shell of the rotating body rotating at high speed on the rotating shaft is prone to friction and collision with the outer circumference of the rotating shaft. However, since the material of the outer shell of the rotating body is different from that of the rotating shaft, the friction and collision between the two will bring harsh and loud noise. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a stirring cup with a plastic bushing fixed on a fixed shaft to reduce the noise generated during operation.

[0005] The purpose of this utility model is achieved as follows:

[0006] A mixing cup includes a cup body and a mixing assembly. The cup body has a fixed shaft at its inner bottom, and both the cup body and the fixed shaft are made of metal. The mixing assembly includes an outer shell, a drive magnet, and a stirring element. The outer shell is made of plastic, the drive magnet is placed inside the outer shell, and the stirring element is fixed to the outer periphery of the outer shell. The characteristic feature is that a plastic bushing is fixed to the outer periphery of the fixed shaft, and the outer shell is rotatably fitted onto the outer periphery of the plastic bushing, with its bottom resting on the plastic bushing. This mixing cup, by fixing a plastic bushing to the outer periphery of the fixed shaft, uses the same material as the outer shell of the mixing assembly. Since plastic has lower hardness than metal, this effectively reduces the harsh noise generated during operation due to friction and collision between the plastic bushing and the outer shell, thus lowering the overall noise level. Simultaneously, the plastic bushing also supports the mixing assembly, contributing to its stable operation.

[0007] The objective of this utility model can also be achieved by the following technical measures:

[0008] Specifically, the plastic bushing is fixed to the outer periphery of the fixed shaft by injection molding; this method has high production efficiency and ensures that the plastic bushing is firmly fixed to the outer periphery of the fixed shaft.

[0009] Specifically, the bottom of the plastic bushing extends outward with an annular boss, and the outer shell has a hollow shaft hole. The inner bottom of the hollow shaft hole extends inward with an inner protrusion. The bottom surface of the inner protrusion rests on the annular boss, and there is a gap between the inner bottom of the outer shell and the inner bottom of the cup body. Through the cooperation between the inner protrusion and the annular boss, the stirring assembly can be supported on the plastic bushing. At the same time, the contact area between the inner protrusion and the annular boss is small, so that the plastic bushing has little impact on the rotation of the stirring assembly.

[0010] Specifically, it further includes a limiting cover made of elastic material. The lower end of the limiting cover is fitted around the upper outer periphery of the stirring assembly, and the upper end of the fixed shaft extends upward beyond the stirring assembly and is inserted into the limiting cover. The upper end of the fixed shaft abuts against the inside of the limiting cover. Through the elastic fit between the upper end of the fixed shaft and the limiting cover, the stirring assembly is limited on the fixed shaft, which effectively prevents the stirring assembly from easily detaching from the fixed shaft. At the same time, the limiting cover also limits the relative movement of the stirring assembly on the fixed shaft, reducing sway during rotation and promoting the rotational stability of the limiting cover and the stirring assembly. Furthermore, since the limiting cover is connected to the upper part of the stirring assembly, when disassembling the stirring assembly, the user only needs to forcefully push the limiting cover to move the stirring assembly away from the fixed shaft, making the operation simple and convenient.

[0011] Specifically, the limiting cover has a lower fitting hole, a middle limiting hole, and an upper positioning hole inside. The upper and lower ends of the middle limiting hole are connected to the upper positioning hole and the lower fitting hole, respectively. The lower end of the lower fitting hole extends to the bottom surface of the limiting cover and fits onto the upper outer periphery of the stirring assembly. The upper end of the fixed shaft extending out of the stirring assembly passes through the lower fitting hole and the middle limiting hole in sequence and then extends to the upper positioning hole. The upper end of the fixed shaft is provided with an annular protrusion. The bottom surface of the annular protrusion abuts against the top surface of the middle limiting hole, and the outer periphery of the annular protrusion is close to the inner periphery of the upper positioning hole. The limiting cover is connected to the upper outer periphery of the stirring assembly through the lower fitting hole. The elastic abutment between the top surface of the middle limiting hole and the bottom surface of the annular protrusion can effectively prevent the stirring assembly and the limiting cover from easily detaching from the fixed shaft. The fit between the upper positioning hole and the annular protrusion can effectively limit the rotation of the limiting cover and the stirring assembly on the fixed shaft, which is beneficial to rotational stability.

[0012] Specifically, the inner diameter of the intermediate limiting hole is less than the maximum outer diameter of the annular protrusion, less than the inner diameter of the upper positioning hole, and less than the minimum inner diameter of the lower sleeve hole; its ingenious design can effectively achieve the corresponding fit between the fixed shaft and the limiting cover.

[0013] Furthermore, the upper end of the stirring assembly is provided with an installation part, the cross-section of the installation part and the cross-section of the lower sleeve hole are both T-shaped, and the lower sleeve hole is fitted on the upper outer periphery of the installation part; the T-shaped installation part and the lower sleeve hole fit together relatively stably and firmly, so that the limiting cover can be stably connected to the installation part.

[0014] Specifically, the upper outer periphery of the limiting cover is provided with an annular groove; the annular groove makes it easy for the user to remove the limiting cover and then disassemble the limiting cover and the stirring assembly as a whole, so as to facilitate the cleaning operation of the stirring assembly.

[0015] The beneficial effects of this utility model are as follows:

[0016] (1) This mixing cup has a plastic bushing fixed on the outer periphery of the fixed shaft. The plastic bushing is made of the same material as the outer shell of the mixing component. The plastic material has a lower hardness than the metal material, which can effectively reduce the harsh sound caused by friction and collision between the plastic bushing and the outer shell during operation, and reduce the noise generated between the two during operation. At the same time, the plastic bushing also serves to support the mixing component, which is conducive to the stable operation of the mixing component.

[0017] (2) The installation of the stirring assembly on the fixed shaft is limited by the elastic fit between the upper end of the fixed shaft and the limiting cover. This effectively prevents the stirring assembly from easily detaching from the fixed shaft. At the same time, the stirring assembly is also relatively limited when rotating on the fixed shaft by the limiting cover, which reduces the swaying during rotation and is conducive to the rotational stability of the limiting cover and the stirring assembly. Furthermore, the limiting cover is connected to the upper part of the stirring assembly. Therefore, when disassembling the stirring assembly, the user only needs to push the limiting cover to drive the stirring assembly to detach from the fixed shaft. The operation is relatively simple and convenient.

[0018] (3) The annular groove makes it easy for users to take out the limiting cover, and then disassemble the limiting cover and the stirring component as a whole, so as to facilitate the cleaning operation of the stirring component. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the stirring cup of this utility model.

[0020] Figure 2 This is a cross-sectional view of the stirring cup of this utility model.

[0021] Figure 3 for Figure 2 Enlarged view of point A.

[0022] Figure 4 This is a cross-sectional view of the limiting cover of this utility model. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Implementation examples, in conjunction with Figures 1 to 4 As shown, a stirring cup includes a cup body 1 and a stirring assembly 2. The inner bottom of the cup body 1 is provided with a fixed shaft 3, and both the cup body 1 and the fixed shaft 3 are made of metal. The stirring assembly 2 includes an outer shell 21, a transmission magnet 22, and a stirring element 23. The outer shell 21 is made of plastic, the transmission magnet 22 is placed inside the outer shell 21, and the stirring element 23 is fixed to the outer periphery of the outer shell 21. The characteristic is that a plastic bushing 4 is fixed to the outer periphery of the fixed shaft 3, and the outer shell 21 is rotatably sleeved on the outer periphery of the plastic bushing 4, with the bottom of the outer shell 21 resting on the plastic bushing 4.

[0025] As a specific solution, the plastic bushing 4 is fixed to the outer periphery of the fixed shaft 3 by injection molding.

[0026] More specifically, the stirring component 2 is a milk frothing component, and the stirring element 23 is a stirring spring; the metal material can specifically be 304 stainless steel.

[0027] In this embodiment, the bottom of the plastic bushing 4 extends outward with an annular boss 41, the outer shell 21 has a hollow shaft hole 211, the inner bottom of the hollow shaft hole 211 extends inward with an inner protrusion 212, the bottom surface of the inner protrusion 212 rests on the annular boss 41, and there is a gap 100 between the inner bottom of the outer shell 21 and the inner bottom of the cup body 1.

[0028] As a more specific solution, it also includes a limiting cover 5, which is made of elastic material. The lower end of the limiting cover 5 is sleeved on the upper outer periphery of the stirring assembly 2, and the upper end of the fixing shaft 3 extends upward out of the stirring assembly 2 and is inserted into the limiting cover 5. The upper end of the fixing shaft 3 abuts against the inside of the limiting cover 5.

[0029] In this embodiment, the limiting cover 5 is provided with a lower fitting hole 51, a middle limiting hole 52 and an upper positioning hole 53 inside. The upper and lower ends of the middle limiting hole 52 are connected to the upper positioning hole 53 and the lower fitting hole 51 respectively. The lower end of the lower fitting hole 51 extends to the bottom surface of the limiting cover 5. The lower fitting hole 51 is fitted on the upper outer periphery of the stirring assembly 2. The upper end of the fixed shaft 3 extending out of the stirring assembly 2 passes through the lower fitting hole 51 and the middle limiting hole 52 in sequence and extends to the upper positioning hole 53. The upper end of the fixed shaft 3 is provided with an annular protrusion 31. The bottom surface of the annular protrusion 31 abuts against the top surface of the middle limiting hole 52. The outer periphery of the annular protrusion 31 is close to the inner periphery of the upper positioning hole 53.

[0030] More specifically, the bottom surface of the annular protrusion 31 can be a slope; the slope can achieve elastic fit with the top surface of the middle limiting hole 52, and also facilitates the user to forcefully move the limiting cover 5 to disengage the middle limiting hole 52 from the annular protrusion 31, thereby achieving the purpose of disassembling the limiting cover 5 and the stirring assembly 2.

[0031] As a preferred embodiment, the inner diameter of the intermediate limiting hole 52 is less than the maximum outer diameter of the annular protrusion 31, less than the inner diameter of the upper positioning hole 53, and less than the minimum inner diameter of the lower sleeve hole 51.

[0032] As a preferred embodiment, the upper end of the stirring assembly 2 is provided with a mounting part 24, and the cross-sections of the mounting part 24 and the lower sleeve hole 51 are both T-shaped, with the lower sleeve hole 51 fitted onto the upper outer periphery of the mounting part 24.

[0033] As a preferred embodiment, the upper outer periphery of the limiting cover 5 is provided with an annular groove 54.

Claims

1. A stirring cup, comprising a cup body (1) and a stirring assembly (2), wherein a fixed shaft (3) is provided at the inner bottom of the cup body (1) and both the cup body (1) and the fixed shaft (3) are made of metal material, the stirring assembly (2) comprises an outer shell (21), a drive magnet (22) and a stirring element (23), the outer shell (21) is made of plastic, the drive magnet (22) is placed inside the outer shell (21), and the stirring element (23) is fixed to the outer periphery of the outer shell (21), characterized in that, A plastic bushing (4) is fixed to the outer periphery of the fixed shaft (3), and the outer shell (21) is rotatably fitted onto the outer periphery of the plastic bushing (4) with the bottom of the outer shell (21) resting on the plastic bushing (4).

2. The beaker of claim 1 wherein, The plastic bushing (4) is fixed to the outer periphery of the fixed shaft (3) by injection molding.

3. The beaker of claim 1 wherein, The bottom of the plastic bushing (4) extends outward with an annular boss (41), and the outer shell (21) has a hollow shaft hole (211). The inner bottom of the hollow shaft hole (211) extends inward with an inner protrusion (212). The bottom surface of the inner protrusion (212) rests on the annular boss (41). There is a gap (100) between the inner bottom of the outer shell (21) and the inner bottom of the cup body (1).

4. The beaker of claim 1 wherein, It also includes a limiting cover (5), which is made of elastic material. The lower end of the limiting cover (5) is fitted on the upper outer periphery of the stirring assembly (2). The upper end of the fixing shaft (3) extends upward out of the stirring assembly (2) and is inserted into the limiting cover (5). The upper end of the fixing shaft (3) abuts against the inside of the limiting cover (5).

5. The beaker of claim 4 wherein, The limiting cover (5) is provided with a lower sleeve hole (51), a middle limiting hole (52) and an upper positioning hole (53). The upper and lower ends of the middle limiting hole (52) are connected to the upper positioning hole (53) and the lower sleeve hole (51) respectively. The lower end of the lower sleeve hole (51) extends to the bottom surface of the limiting cover (5). The lower sleeve hole (51) is fitted on the upper outer periphery of the stirring assembly (2). The upper end of the fixed shaft (3) extending out of the stirring assembly (2) passes through the lower sleeve hole (51) and the middle limiting hole (52) in sequence and extends to the upper positioning hole (53). The upper end of the fixed shaft (3) is provided with an annular protrusion (31). The bottom surface of the annular protrusion (31) abuts against the top surface of the middle limiting hole (52). The outer periphery of the annular protrusion (31) is close to the inner periphery of the upper positioning hole (53).

6. The beaker of claim 5 wherein, The inner diameter of the intermediate limiting hole (52) is less than the maximum outer diameter of the annular protrusion (31) and less than the inner diameter of the upper positioning hole (53) and less than the minimum inner diameter of the lower sleeve hole (51).

7. The beaker of claim 5 wherein, The upper end of the stirring assembly (2) is provided with a mounting part (24). The cross-section of the mounting part (24) and the lower sleeve hole (51) are both T-shaped, and the lower sleeve hole (51) is fitted on the upper outer periphery of the mounting part (24).

8. The beaker of claim 4 wherein, The upper outer periphery of the limiting cover (5) is provided with an annular groove (54).

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