Novel impeller

Abstract

The utility model discloses a novel impeller and belongs to the technical field of range hood equipment. The grooves are formed in the inner sides of the upper ends of the blades, under the condition that the appearance diameter of the impeller is not changed, the diameter of an air inlet of an inner cavity of the impeller can be increased, the flow is increased, the sawtooth-shaped structures are arranged on the outer edges of the blades, and air noise can be further reduced under the condition of large-flow air suction; through the structure that the inserting pieces are arranged at the upper ends and the lower ends of the blades, the inserting holes matched with the inserting pieces are formed in the upper blade fixing piece and the lower blade fixing piece, and the inserting pieces are buckled with the upper blade fixing piece and the lower blade fixing piece by spinning the inserting pieces, the connecting strength of the blades and the upper blade fixing piece and the lower blade fixing piece can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of range hood equipment, and in particular relates to a novel impeller. Background Art

[0002] At present, the impeller technology of range hoods has the following problems: due to structural problems, it is impossible to achieve large diameter, large size and large air volume; due to unreasonable structure, it is easy to deform and have poor balance; the entire impeller structure is composed of four parts: blades, upper and lower fixing plates of blades, and middle fixing plates of blades. Due to the limitation of impeller size, it is difficult to increase the air intake of the impeller without changing the outer dimensions of the impeller. As a result, due to the limitation of the outer dimensions of the impeller, the working efficiency of the range hood can only be increased by increasing the power of the motor, but this method will increase the energy consumption of the range hood. Summary of the invention

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a new impeller.

[0004] The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: a new impeller comprises a hub, a plurality of blades and two upper and lower blade fixing plates, the outer ring diameter of the hub is consistent with the outer ring diameter of the upper and lower blade fixing plates, the two upper and lower blade fixing plates are arranged on the upper and lower sides of the hub, and the three are arranged coaxially, the upper and lower ends of the blades are provided with plug plates, the number of the plug plates at the upper end of the blades is one, the number of the plug plates at the lower end of the blades is two, the annular arrays on the two upper and lower blade fixing plates are provided with multiple groups of plug holes matching with the plug plates at the upper and lower ends of the blades, the number of the plug holes is consistent with the number of blades, the annular array on the hub is provided with multiple blade mounting grooves, the multiple blades are inserted in the blade mounting grooves of the hub, the outer ends of the blades are distributed with multiple serrated structures, and the inner side of the upper end of the blades is provided with a groove.

[0005] Preferably, the connection position between the blade and the hub is located at the lower end of the blade and the blade and the hub are welded together.

[0006] Preferably, the two plug plates at the upper and lower ends of the blade are respectively inserted into the corresponding plug holes of the upper and lower fixing plates of the two blades.

[0007] Preferably, the insert plates at the upper and lower ends of the blade are buckled into the insert holes of the upper and lower fixing plates of the blade on the same side.

[0008] The utility model has the beneficial effects as follows: by arranging a groove on the inner side of the upper end of the blade, the diameter of the air inlet of the inner cavity of the impeller can be increased without changing the outer diameter of the impeller, thereby increasing the flow rate; and by arranging a serrated structure on the outer edge of the blade, the wind noise can be further reduced in the case of large-flow air suction; by arranging plugs at the upper and lower ends of the blade, and arranging plug holes that match the plugs on the upper and lower fixing plates of the blade, and by spinning the plugs to buckle the plugs with the upper and lower fixing plates of the blade, the connection strength between the blade and the upper and lower fixing plates of the blade can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a structural schematic diagram of the wheel hub and the upper and lower fixing plates of the blades of the utility model;

[0011] Figure 3 This is a first structural schematic diagram of the blade of the utility model.

[0012] In the figure: 1. hub; 2. blades; 3. upper and lower blade fixing plates; 4. plug plate; 5. plug hole; 6. blade mounting groove; 7. serrated structure; 8. bevel. DETAILED DESCRIPTION

[0013] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0014] Embodiment: A novel impeller, such as Figure 1-Figure 3 As shown, it includes a hub 1, a plurality of blades 2 and two upper and lower blade fixing plates 3. The outer ring diameter of the hub 1 is consistent with the outer ring diameter of the upper and lower blade fixing plates 3. The two upper and lower blade fixing plates 3 are arranged on the upper and lower sides of the hub 1, and the three are arranged coaxially. The upper and lower ends of the blade 2 are provided with plug plates 4. The number of the plug plates 4 at the upper end of the blade 2 is one, and the number of the plug plates 4 at the lower end of the blade 2 is two. The two upper and lower blade fixing plates 3 are provided with a plurality of groups of plug holes 5 that cooperate with the plug plates 4 at the upper and lower ends of the blade 2 in an annular array, and the number of the plug holes 5 is consistent with the number of the blades 2. The hub 1 is provided with a plurality of blade 2 mounting grooves in an annular array, and the plurality of blades 2 are inserted into the blade 2 mounting grooves of the hub 1. The outer end of the blade 2 is distributed with a plurality of serrated structures 7, and the inner side of the upper end of the blade 2 is provided with a groove 8.

[0015] The connection position between the blade 2 and the hub 1 is located at the lower end of the blade 2 and the blade 2 is welded to the hub 1; the two plug plates 4 at the upper and lower ends of the blade 2 are respectively inserted into the corresponding insertion holes 5 of the two upper and lower blade fixing plates 3; the plug plates 4 at the upper and lower ends of the blade 2 are buckled into the insertion holes 5 of the upper and lower blade fixing plates 3 on the same side.

[0016] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A novel impeller, comprising a hub (1), a plurality of blades (2) and two upper and lower blade fixing plates (3), characterized in that: The outer diameter of the wheel hub (1) is consistent with the outer diameter of the upper and lower blade fixing plates (3). The two upper and lower blade fixing plates (3) are arranged on the upper and lower sides of the wheel hub (1), and the three are arranged coaxially. The upper and lower ends of the blade (2) are provided with plug plates (4). The number of the plug plates (4) at the upper end of the blade (2) is one, and the number of the plug plates (4) at the lower end of the blade (2) is two. The two upper and lower blade fixing plates (3) are provided with a plurality of groups of plug holes (5) matching with the plug plates (4) at the upper and lower ends of the blade (2) in an annular array. The number of the plug holes (5) is consistent with the number of the blades (2). The wheel hub (1) is provided with a plurality of blade (2) mounting grooves in an annular array. The plurality of blades (2) are inserted into the blade (2) mounting grooves of the wheel hub (1). The outer end of the blade (2) is provided with a plurality of sawtooth structures (7). The inner side of the upper end of the blade (2) is provided with a groove (8).

2. A novel impeller according to claim 1, characterized in that: The connection position between the blade (2) and the hub (1) is located at the lower end of the blade (2), and the blade (2) and the hub (1) are welded together.

3. A novel impeller according to claim 1, characterized in that: The two inserting plates (4) at the upper and lower ends of the blade (2) are respectively inserted into the corresponding inserting holes (5) of the upper and lower fixing plates (3) of the two blades.

4. A novel impeller according to claim 1, characterized in that: The inserting plates (4) at the upper and lower ends of the blade (2) are buckled into the inserting holes (5) of the upper and lower fixing plates (3) of the blade on the corresponding same side.

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