Anti-sputtering stirring blade

Abstract

The utility model discloses a kind of anti-sputtering stirring knives, it is related to food grinder field, the size of the uppermost blade of this stirring knife is greater than the size of any blade in its lower part, the food that is sputtered and upwelling due to rotation is blocked by the large size of the uppermost blade, and the effect of anti-sputtering is played.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliances, specifically relating to a splash-proof stirring blade. Background Technology

[0002] Food processors are a very common kitchen appliance. When existing food processors are working, the blades at the bottom of the mixing blades tend to splash the chopped food onto the top lid while chopping in the bottom space of the cup, causing food waste and increasing the workload of cleaning the top lid.

[0003] Currently, most anti-splash measures are achieved through drainage grooves or holes on the blade. However, drilling holes or setting drainage grooves on the blade will damage the flatness of the blade and make it difficult to clean the blade. Therefore, a new anti-splash design is needed. Utility Model Content

[0004] The purpose of this invention is to disclose a splash-proof stirring blade.

[0005] To achieve the above objectives, this utility model discloses a splash-proof stirring blade, comprising a blade shaft and a blade assembly connected together. The blade assembly includes an upper blade assembly and a lower blade assembly, which are axially spaced on the blade shaft. The upper blade assembly is closer to the blade shaft and is used to connect to the end of the machine head, while the lower blade assembly is farther from the blade shaft and is used to connect to the end of the machine head. The size of the upper blade assembly is larger than that of the lower blade assembly.

[0006] As an optional implementation, the upper blade assembly is a one-piece rotationally symmetrical structure with the center of rotation falling on the axis of the cutter shaft; the lower blade assembly is also a one-piece rotationally symmetrical structure with the center of rotation falling on the axis of the cutter shaft.

[0007] As an optional implementation, the upper blade assembly and the lower blade assembly rotate coaxially, with the rotation radius of the upper blade assembly being greater than that of the lower blade assembly.

[0008] As an alternative implementation, the area of ​​the upper blade assembly is 1.5 to 2.5 times the area of ​​the lower blade assembly.

[0009] As an optional implementation, the lower blade assembly forms an angle with the upper blade assembly along the rotation direction of the stirring blade, with the angle being between 10° and 15°.

[0010] As an optional implementation, on the same circumferential trajectory with the same radius of rotation, the width of the cutting edge in the upper blade group is greater than the width of the cutting edge in the lower blade group.

[0011] As an optional implementation, the upper blade assembly includes an integrally formed first fixing part and at least two first cutting edges, with the cutting shaft passing through the first fixing part. The first cutting edges extend arcuately from the first fixing part in a direction away from the cutting shaft, and the width of the first cutting edges gradually narrows outward along the radial direction of the cutting shaft. The lower blade assembly includes an integrally formed second fixing part and at least two second cutting edges, with the cutting shaft passing through the second fixing part. The second cutting edges extend arcuately from the second fixing part in a direction away from the cutting shaft, and the width of the second cutting edges gradually narrows outward along the radial direction of the cutting shaft.

[0012] As an optional implementation, the cutter shaft includes a shaft body and a bushing. The lower blade assembly, the bushing, and the upper blade assembly are sequentially fitted and sleeved on the shaft body. The bushing is used to separate the upper blade assembly and the lower blade assembly.

[0013] The splash-proof stirring blade of this invention places the largest blade on the top layer. The large size of the top blade blocks the food that splashes upwards due to rotation, thus preventing splashing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a picture showing the overall appearance of the mixing blade.

[0016] Figure 2 This is an exploded view of the mixing blade.

[0017] Figure 3 It is a top view of the stirring blade and a schematic diagram of the angle between the upper and lower blade groups.

[0018] Figure 4 This is a diagram showing the structure of the upper blade assembly.

[0019] Figure 5 This is a diagram showing the structure of the lower blade assembly.

[0020] Explanation of key figure labels: 1. Cutter shaft; 10. Shaft body; 11. Bushing; 2. Upper blade assembly; 20. First fixing part; 21. First cutting edge; 3. Lower blade assembly; 30. Second fixing part; 31. Second cutting edge. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0025] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0026] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0027] Please see Figure 1 and Figure 2As shown in the illustration, this application provides a splash-proof stirring blade, including a connected blade shaft 1 and a blade assembly. The blade assembly includes an upper blade assembly 22 and a lower blade assembly 33, which are axially spaced and connected to the blade shaft 1. The upper blade assembly 22 is closer to the blade shaft 1 at one end for connecting to the head, while the lower blade assembly 3 is farther from the blade shaft 1 at the other end for connecting to the head. The upper blade assembly 2 is larger than the lower blade assembly 3. This design places the largest blade on the top layer, using the large size of the uppermost blade to block food that splashes upwards due to rotation, thus preventing splashing.

[0028] It should be noted that the stirring blade disclosed in this utility model is used in a food pulverizer with the head mounted on top. With the direction of gravity vertically downward as the reference, the head is positioned above the stirring blade and is movably connected to it. Along the axial direction of the blade shaft 1, from top to bottom, are the head, upper blade assembly 2, bushing 11, and lower blade assembly 3. In this embodiment, the lower blade assembly 3 consists of one set; in other embodiments, the lower blade assembly 3 may consist of two or more sets, which will not be elaborated upon in this embodiment.

[0029] See Figures 1 to 3 The blade shaft 1 is perpendicularly inserted through the geometric center of the upper blade assembly 2 and the lower blade assembly 3. Both the upper blade assembly 2 and the lower blade assembly 3 are rotationally symmetrical. This installation position of the blade shaft 1, combined with the shape of the blade assembly, ensures that the weight on both sides of the blade shaft 1 is balanced when the blade assembly rotates at high speed around the blade shaft 1, guaranteeing the stability of the entire stirring blade during high-speed rotation. It should be noted that the blade assembly in this embodiment only shows a centrally symmetrical design with two blades. In other embodiments, the blade design can also be set to a rotationally symmetrical design with multiple blades; specific details will not be elaborated in this embodiment.

[0030] See Figure 1 and Figure 3The blade shaft 1 includes a shaft body 10 and a bushing 11. The lower blade assembly 3, bushing 11, and upper blade assembly 2 are sequentially fitted around the shaft body 10. The upper blade assembly 2 and lower blade assembly 3 are coaxially arranged. The assembly part of any blade assembly with the shaft body 10 is fully fitted on the radial cross-section of the shaft body 10, and the mating surface is not circular. This connection method between the blade assembly and the shaft body 10 ensures that there is no relative rotation between the blade assembly and the shaft body 10 when the stirring blade rotates at high speed, indirectly ensuring that there is no relative rotation between all blades on the same shaft body 10. The bushing 11 is also assembled with the shaft body 10 in this manner, and the bushing 11 separates the lower blade assembly 2 from the upper blade assembly 2. Therefore, an angle of 10° to 15° is set between the upper blade assembly 2 and the lower blade assembly 3 along the rotation direction of the blade shaft 1. This angle will not change due to the rotation of the stirring blade. When setting this angle, the following rule can be referenced: the greater the distance between the upper blade group 2 and the adjacent lower blade group 3, the greater the angle between the two blade groups along the rotation direction of the blade shaft 1; the greater the rotation speed of the stirring blade, the greater the angle between the upper blade group 2 and the adjacent lower blade group 3 along the rotation direction of the blade shaft 1; the greater the difference in the blade width between the upper blade group 2 and the lower blade group 3, the greater the angle between the upper blade group 2 and the adjacent lower blade group 3 along the rotation direction of the blade shaft 1.

[0031] See Figure 1 and Figure 2 The upper blade group 2 and the lower blade group 3 are separated by a bushing 11 set coaxially. The advantage of this setting is that the physical distance between the bushing 11 and the two adjacent blade groups is always present and will not loosen or fail due to the high-speed rotation of the stirring blade. This is a highly reliable spacing design that can prevent different blade groups from getting close to each other or even interfering with each other when the stirring blade is rotating at high speed.

[0032] See Figure 1 and Figure 3 In the radial direction of the blade shaft 1, the rotation radius of the upper blade assembly 2 is greater than that of the lower blade assembly 3. Furthermore, on the same circular trajectory containing the same rotation radius, the blade width of the upper blade assembly 2 is greater than that of the lower blade assembly 3. Therefore, the area of ​​the upper blade assembly 2 is greater than that of the lower blade assembly 3; specifically, the area of ​​the upper blade assembly 2 is 1.5 to 2.5 times the area of ​​the lower blade assembly 3. The purpose of this arrangement is that when the mixing blade rotates at high speed, the uppermost blade assembly 2 forms a circular covering surface. The radius of this circular covering surface is equal to the rotation radius of the upper blade assembly 2. On the projection plane of the mixing blade in the axial direction, the projection of this circular covering surface can cover the entire running trajectory of the lower blade assembly 3. Therefore, this covering surface is sufficient to block food that is churned and splashed upwards due to the rotation of the mixing blade.

[0033] See Figure 4 and Figure 5The upper blade assembly 2 includes an integrally formed first fixing part 20 and at least two first cutting edges 21. The cutting shaft 1 passes through the first fixing part 20. The first cutting edges 21 extend arcuately from the first fixing part 20 away from the cutting shaft 1, and the width of the first cutting edges 21 gradually narrows outward along the radial direction of the cutting shaft 1. The lower blade assembly 3 includes an integrally formed second fixing part 30 and at least two second cutting edges 31. The cutting shaft 1 passes through the second fixing part 30. The second cutting edges 31 extend arcuately from the second fixing part 30 away from the cutting shaft 1, and the width of the second cutting edges 31 gradually narrows outward along the radial direction of the cutting shaft 1. There are two advantages to designing the blade assembly in this way: First, the one-piece design effectively simplifies the fixing structure between the blade assembly and the blade shaft 1 and improves the operational stability of the blade assembly under high-speed rotation conditions; second, the arc-shaped extension of the blade edge provides a better crushing effect compared to a straight blade edge. A straight blade edge is equivalent to only performing a vertical chopping motion when shredding food, while an arc-shaped extension blade edge is equivalent to performing both vertical chopping and diagonal slicing motions when shredding food, resulting in higher utilization of the blade edge and better crushing effect.

[0034] 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 splash-proof stirring blade, characterized in that, The device includes a connected cutter shaft (1) and a blade assembly, the blade assembly including an upper blade assembly (2) and a lower blade assembly (3), the upper blade assembly (2) and the lower blade assembly (3) being axially spaced from the cutter shaft (1), the upper blade assembly (2) being closer to the end of the cutter shaft (1) used to connect to the machine head, and the lower blade assembly (3) being farther away from the cutter shaft (1) used to connect to the machine head, the upper blade assembly (2) being larger in size than the lower blade assembly (3).

2. The stirring blade according to claim 1, characterized in that, The upper blade assembly (2) is an integrally formed rotationally symmetrical structure, and the center of rotation lies on the axis of the cutter shaft (1); the lower blade assembly (3) is also an integrally formed rotationally symmetrical structure, and the center of rotation lies on the axis of the cutter shaft (1).

3. The anti-splash stirring blade according to claim 2, characterized in that, The upper blade assembly (2) and the lower blade assembly (3) rotate coaxially, and the rotation radius of the upper blade assembly (2) is greater than that of the lower blade assembly (3).

4. The anti-splash stirring blade according to claim 3, characterized in that, The area of ​​the upper blade assembly (2) is 1.5 to 2.5 times the area of ​​the lower blade assembly.

5. The anti-splash stirring blade according to claim 4, characterized in that, The lower blade assembly (3) forms an angle with the upper blade assembly (2) along the rotation direction of the stirring blade, and the angle is between 10° and 15°.

6. The anti-splash stirring blade according to claim 3, characterized in that, On the same circumferential trajectory with the same radius of rotation, the width of the cutting edge in the upper blade group (2) is greater than the width of the cutting edge in the lower blade group (3).

7. The anti-splash stirring blade according to any one of claims 1-6, characterized in that, The upper blade assembly (2) includes an integrally formed first fixing part (20) and at least two first cutting edges (21). The cutting shaft (1) passes through the first fixing part (20). The first cutting edges (21) extend arcuately from the first fixing part (20) away from the cutting shaft (1), and the width of the first cutting edges (21) gradually narrows outward along the radial direction of the cutting shaft (1). The lower blade assembly (3) includes an integrally formed second fixing part (30) and at least two second cutting edges (31). The cutting shaft (1) passes through the second fixing part (30). The second cutting edges (31) extend arcuately from the second fixing part (30) away from the cutting shaft (1), and the width of the second cutting edges (31) gradually narrows outward along the radial direction of the cutting shaft (1).

8. The anti-splash stirring blade according to any one of claims 1-6, characterized in that, The cutter shaft (1) includes a shaft body (10) and a bushing (11). The lower blade assembly (3), the bushing (11) and the upper blade assembly (2) are sequentially fitted and sleeved outside the shaft body (10). The bushing (11) is used to separate the upper blade assembly (2) and the lower blade assembly (3).

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