Knife assembly of household blender

Abstract

The utility model provides a household blender knife assembly which comprises an upper blade, a middle blade and a lower blade, the upper blade, the middle blade and the lower blade are all connected with the top end of a knife shaft in a penetrating and inserting mode, the upper face and the lower face of the middle blade are connected with the upper blade and the lower blade in an attached mode respectively, and an arc face is arranged in the middle of the lower blade. The original straight surface is made into the arc surface on the lowermost layer of the blade, so that the pressing force contact area of the middle blade and the lower layer of the blade is increased, the pressing force per unit area is reduced, resonance generated during food material stirring is distributed, the middle blade is better protected, the potential safety hazard of breakage of the middle blade is avoided, and the food material stirring efficiency is improved. The overall safety reliability of the stirrer is improved, stable transmission of the three groups of blades can be realized, and the stress area of the blades can be increased while the pressing force is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic blender knife assembly belongs to blender technical field. BACKGROUND

[0002] Blender blade is one of the key components of the blender, and the blender blade can be divided into various types according to different purposes and materials, such as ordinary blade, blade type blade, arc blade, etc. The main purpose of the blender blade is to mix and stir different raw materials. Specifically, food materials can be stirred into fine particles, or chopped and mixed with food materials, etc. For example, the blade head usually has two or three blades, which can quickly stir food materials into fine particles, and is suitable for stirring meat, fruits and vegetables, etc.

[0003] Domestic blenders have been sold on the domestic and foreign markets for many years. In recent years, the blender is a small household appliance that is essential in people's kitchen appliances. The blender knife assembly, as the main accessory of the blender, provides the necessary stirring effect for the blender and plays an extremely important role in the whole blender. Therefore, the reliability of the blender knife assembly is extremely important.

[0004] The existing blender six-blade knife assembly blade is connected by the upper, middle and lower blades through the middle blade shaft. During the stirring process, the middle blade may break due to stress or resonance and other factors. When the blender is stirring food materials, the motor outputs a large torque, and the motor shaft needs to bear the motor output torque, which is transmitted to the blade shaft. During the process of stirring food materials with the blade shaft and the blade, the middle blade is clamped by the upper and lower blades, which may generate a large force and resonance, easily causing the middle blade to break, causing great safety hazards to the blender, and possibly causing food safety hazards to the food consumer. TECHNICAL CONTENT

[0005] The utility model discloses a domestic blender knife assembly to solve the technical problem of poor stability of the blender blade.

[0006] The utility model solves the above-mentioned technical problem by the following technical scheme:

[0007] The utility model provides a domestic blender knife assembly, which comprises:

[0008] The upper blade, the middle blade and the lower blade are all inserted into the top end of the blade shaft, the upper surface and the lower surface of the middle blade are respectively connected with the upper blade and the lower blade, and the middle part of the lower blade is provided with a circular arc surface.

[0009] In the technical scheme, the upper blade, the middle blade and the lower blade are all U-shaped metal blade structures with different inclination angles at both ends, and the both ends of the upper blade, the middle blade and the lower blade are provided with blade tips.

[0010] In the technical solution, the intermediate blade is provided with a trimming edge on both sides.

[0011] In the technical solution, the top of the blade shaft is fixedly connected with a convex shaft, which extends into the shaft hole in the middle of the upper blade, the intermediate blade and the lower blade.

[0012] In the technical solution, the blade shaft and the convex shaft are integrated.

[0013] In the technical solution, the blade shaft is embeddedly connected with the driving part at the bottom of the blender.

[0014] In the technical solution, the blade tip is matched with the rotating direction of the driving part at the bottom of the blender.

[0015] In the technical solution, the convex shaft is in a flat structure, penetrates the middle of the arc surface of the lower blade, and the lower blade is connected with the top edge of the blade shaft.

[0016] In the technical solution, the upper blade and the intermediate blade are vertically distributed, and the intermediate blade and the lower blade are vertically distributed.

[0017] On the basis of common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, each preferred example of the utility model is obtained.

[0018] The positive progress effect of the utility model lies in:

[0019] The household blender blade assembly proposed above makes the original straight surface into an arc surface on the lowermost blade of the blender blade assembly, so that the contact area of the intermediate blade and the lower blade is increased, the unit area pressure is reduced, the resonance generated during the blending of food materials is distributed, the intermediate blade is better protected, the safety hazard of the intermediate blade breaking is avoided, the overall safety reliability of the blender is improved, three groups of blades can realize stable transmission, the stress area of the blades can be increased while ensuring the pressure, stable transmission can be realized, and the use performance of the blender is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole three-dimensional structure schematic diagram of the utility model.

[0021] Figure 2 It is a three-dimensional structure schematic diagram of the trimming edge of the utility model.

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the arc surface of the utility model.

[0023] Figure 4The utility model discloses a three-dimensional structure schematic diagram of knife shaft.

[0024] Figure 5 The utility model discloses an external elevation structure schematic diagram.

[0025] Figure 6 The utility model discloses an external side structure schematic diagram.

[0026] Mark explanation

[0027] 1, upper blade;2, middle blade;3, lower blade;4, knife shaft;11, shaft hole;12, knife tip;21, edge;22, arc edge;31, arc surface;41, convex shaft. Specific implementation

[0028] The utility model will be further explained by the mode of embodiment below, but will not therefore limit the utility model in the embodiment range.

[0029] As Figures 1-6 Shown, the domestic blender knife assembly includes:

[0030] Upper blade 1, middle blade 2 and lower blade 3, upper blade 1, middle blade 2 and lower blade 3 all are inserted with knife shaft 4 top end, and the upper and lower two sides of middle blade 2 are respectively connected with upper blade 1 and lower blade 3, and the middle part of lower blade 3 is equipped with arc surface 31.

[0031] Upper blade 1, middle blade 2 and lower blade 3 are all U-shaped metal blade structure of different inclination angle of two ends, and upper blade 1, middle blade 2 and lower blade 3 are equipped with knife tip 12 in two ends.

[0032] In the technical scheme, after the assembly of upper blade 1, middle blade 2 and lower blade 3, the synchronous rotation of three groups of blades can be realized when knife shaft 4 and convex shaft 41 drive upper blade 1, middle blade 2 and lower blade 3 to rotate, and the transmission stability is improved.

[0033] Middle blade 2 both sides are equipped with edge 21;In the technical scheme, the bottom of middle blade 2 can be equipped with the recess that is adapted with arc surface 31.The arc surface 31 of the middle part of lower blade 3 is the outer convex structure, and middle blade 2 is equipped with the recess of inner recess structure and is connected with arc surface 31;The bottom of middle blade 2 is equipped with two arc edges 22, and arc edge 22 is connected with the bottom surface of arc surface 31, and arc edge 22 and lower blade 3 edge coincide.

[0034] In the technical solution, the knife shaft 4 is inserted at the bottom of the blender, the lower blade 3, the middle blade 2 and the upper blade 1 are sequentially sleeved on the convex shaft 41, when the middle blade 2 is installed, the groove at the bottom of the middle blade 2 is matched with the arc surface 31 at the middle of the lower blade 3, and the arc edge 22 at the bottom of the middle blade 2 is matched with the top surface of the lower blade 3, so that the middle blade 2 and the lower blade 3 are closely matched.

[0035] The top of the knife shaft 4 is fixedly connected with the convex shaft 41, the convex shaft 41 extends into the shaft hole 11 formed in the middle of the upper blade 1, the middle blade 2 and the lower blade 3, respectively; preferably, the knife shaft 4 and the convex shaft 41 are an integral structure, so as to reduce the possibility of knife shaft fracture.

[0036] The knife shaft 4 is rotationally connected with the bottom of the blender, and the knife shaft 4 is embedded and inserted into the driving part of the bottom of the blender.

[0037] The convex shaft 41 is a flat structure, the convex shaft 41 penetrates the arc surface 31 at the middle of the lower blade 3, and the lower blade 3 is connected with the top edge of the knife shaft 4; the upper blade 1 and the middle blade 2 are vertically distributed, and the middle blade 2 is vertically distributed with the lower blade 3.

[0038] In the technical solution, the driving part of the bottom of the blender drives the rotation of the knife shaft 4, and then drives the synchronous rotation of the convex shaft 41, and then drives the rotation of the three groups of blades (the upper blade 1, the middle blade 2 and the lower blade 3) to realize the stirring treatment.

[0039] The utility model is not limited to the above-mentioned embodiment, no matter make any change in its shape or structure, all fall in the protection scope of the utility model. The protection scope of the utility model is defined by the appended claims, and the skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, but these changes and modifications all fall into the protection scope of the utility model.

Claims

1. A blade assembly for a domestic blender, characterised in that, Include: Upper blade (1), middle blade (2) and lower blade (3), the upper blade (1), middle blade (2) and lower blade (3) are all inserted with the top end of the blade shaft (4), the upper and lower surfaces of the middle blade (2) are respectively connected with the upper blade (1) and the lower blade (3), and the middle part of the lower blade (3) is provided with a circular arc surface (31).

2. The blender knife assembly of claim 1, wherein: The upper blade (1), middle blade (2) and lower blade (3) are all U-shaped metal blade structures with different inclination angles at both ends, and the upper blade (1), middle blade (2) and lower blade (3) are all provided with blade tips (12) at both ends.

3. The blender knife assembly of claim 1, wherein: The middle blade (2) is provided with a trimming edge (21) on both sides.

4. The blender knife assembly of claim 2, wherein: The top of the blade shaft (4) is fixedly connected with a convex shaft (41), and the convex shaft (41) extends into the shaft hole (11) formed in the middle of the upper blade (1), middle blade (2) and lower blade (3).

5. The blender knife assembly of claim 4, wherein: The blade shaft (4) and the convex shaft (41) are an integral structure.

6. A domestic blender blade assembly according to claim 4 or 5 wherein: The blade shaft (4) is embedded and inserted into the driving component inside the bottom of the blender.

7. The blender knife assembly of claim 6, wherein: The rotation direction of the blade tip (12) is matched with the rotation direction of the driving component at the bottom of the blender.

8. The blender blade assembly of claim 4, wherein: The convex shaft (41) is a flat structure, the convex shaft (41) penetrates the middle part of the circular arc surface (31) of the lower blade (3), and the lower blade (3) is connected with the top edge of the blade shaft (4).

9. The blender blade assembly of claim 1, wherein: The upper blade (1) and the middle blade (2) are vertically distributed, and the middle blade (2) and the lower blade (3) are vertically distributed.

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