Anti-deformation fan impeller

Abstract

The utility model relates to the technical field of fan impellers of range hoods, in particular to an anti-deformation fan impeller which comprises an upper annular plate, a lower annular plate and a shaft mounting part, an upper annular plate is arranged at the connecting end of the fan impeller on the range hood, a lower annular plate is arranged below the upper annular plate, the upper annular plate is connected with the lower annular plate through a connecting assembly and an auxiliary assembly, and the connecting assembly and the auxiliary assembly are arranged on the upper annular plate and the lower annular plate at the connecting end of the fan impeller on the range hood; after the first connecting blocks on the upper end faces of the blades are aligned with the first connecting groove holes in the upper annular plate for insertion connection, the first bending parts on the end faces of the first connecting blocks are bent and fixed to the upper annular plate; after second connecting blocks on the lower end faces of the blades are aligned with second connecting groove holes in the lower annular plate for insertion connection, second bent parts on the end faces of the second connecting blocks are bent and fixed to the lower annular plate; and then the welding gun is used for welding and fixing the positions where the blades are connected with the upper annular plate and the lower annular plate, so that the stability of blade connection is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of fan impellers for range hoods, specifically a deformation-resistant fan impeller. Background Technology

[0002] The existing Chinese patent document CN218817192U discloses a centrifugal fan impeller for controlling velocity distribution. It proposes that the blades are arranged in a ring array between the upper and lower cover wheels with the shaft mounting part as the center; the inner end of the blade profile of each blade (4) is located on the same inner circumference, and the outer end of the blade profile is located on the outer circumference of the impeller. By optimizing the wheel cover profile on the meridional plane of the impeller and the blade profile on the impeller rotational plane, the total pressure distribution in the impeller duct is made more uniform and the increase is more regular. The velocity distribution is uniform, the generation of airflow separation is reduced, and the airflow in the impeller duct is made smoother, thereby improving the static pressure and working efficiency of the fan.

[0003] In the assembly process of existing range hoods, the fan impeller is mostly connected to the upper and lower ring plates by riveting. This connection method can cause the riveted joints to loosen during the use of the fan impeller, reducing the overall structural strength and causing the fan impeller to deform.

[0004] Therefore, this utility model proposes an anti-deformation fan impeller to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a deformation-resistant fan impeller to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-deformation fan impeller, comprising: an upper ring plate, a lower ring plate, and a shaft mounting part; the lower ring plate is provided below the upper ring plate, and a groove is provided on one side of the lower ring plate, in which the shaft mounting part is provided;

[0007] The upper ring plate is connected to the lower ring plate through a set connecting component and auxiliary component.

[0008] Preferably, the connecting assembly includes blades, a first connecting slot, and a second connecting slot; the blades are equidistantly arranged between the upper ring plate and the lower ring plate, and the upper ring plate is equidistantly and fixedly provided with the first connecting slot, and the lower ring plate is equidistantly and fixedly provided with the second connecting slot.

[0009] Preferably, a first connecting block is adapted to be provided in the first connecting slot, and the end of the first connecting block is provided with a first bending portion, and the first connecting block is fixedly connected to the upper end face of the blade.

[0010] Preferably, a second connecting block is adapted to be provided in the second connecting slot, and a second bending portion is provided at the end of the second connecting block, and the second connecting block is fixedly connected to the lower end face of the blade.

[0011] Preferably, the auxiliary components include a support frame, a tie rod, and fastening bolts; the support frame is fixed to the upper end face of the lower ring plate by fastening bolts, and a tie rod is connected to the support frame by a fixing nut, and the other end of the tie rod is fixed to the upper ring plate by fastening bolts.

[0012] Preferably, both the upper and lower ring plates are provided with reinforcing rings, and the sides of the upper and lower ring plates are provided with chamfers.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By installing connecting components and auxiliary components on the upper and lower ring plates of the fan impeller on the range hood, the first connecting block on the upper end face of the blade is aligned with the first connecting slot on the upper ring plate and inserted. Then, the first bent portion on the end face of the first connecting block is bent and fixed to the upper ring plate. Next, the second connecting block on the lower end face of the blade is aligned with the second connecting slot on the lower ring plate and inserted. Then, the second bent portion on the end face of the second connecting block is bent and fixed to the lower ring plate. Finally, a welding torch is used to weld and fix the blade to the connection position with the upper and lower ring plates to ensure the stability of the blade connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall left side structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall right side structure of this utility model;

[0017] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B;

[0019] Figure 5 This is a schematic diagram of the blade structure of this utility model.

[0020] In the figure: 1. Upper ring plate, 2. Lower ring plate, 3. Shaft mounting part, 4. Blade, 5. First connecting slot, 6. Second connecting slot, 7. First connecting block, 8. First bending part, 9. Second connecting block, 10. Second bending part, 11. Support frame, 12. Tie rod, 13. Fastening screw, 14. Reinforcing ring, 15. Side chamfer. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1 to 5 This utility model provides three technical solutions for an anti-deformation fan impeller:

[0023] Example 1: An anti-deformation fan impeller includes: an upper ring plate 1, a lower ring plate 2, and a shaft mounting part 3; the lower ring plate 2 is provided below the upper ring plate 1, and a groove is provided on one side of the lower ring plate 2. The groove is used to install the shaft mounting part 3, and the shaft mounting part 3 is provided in the groove.

[0024] The upper ring plate 1 is connected to the lower ring plate 2 through the provided connecting components and auxiliary components.

[0025] Example 2: Based on Example 1, the connecting component includes blades 4, first connecting slots 5, and second connecting slots 6; multiple sets of blades 4 are provided, and the blades 4 are configured as arc-shaped fan blades. The blades 4 are equidistantly arranged between the upper ring plate 1 and the lower ring plate 2, and the upper ring plate 1 is equidistantly fixed with first connecting slots 5 for connecting to the first connecting block 7. The lower ring plate 2 is equidistantly fixed with second connecting slots 6 for connecting to the second connecting block 9, and multiple sets of first connecting slots 5 and second connecting slots 6 are provided.

[0026] A first connecting block 7 is adapted to be provided in the first connecting slot 5, and a first bending part 8 is provided at the end of the first connecting block 7, and the first connecting block 7 is fixedly connected to the upper end face of the blade 4.

[0027] A second connecting block 9 is adapted to be provided in the second connecting slot 6, and a second bending part 10 is provided at the end of the second connecting block 9, and the second connecting block 9 is fixedly connected to the lower end face of the blade 4.

[0028] The blade 4 is welded and fixed at the connection points with the upper ring plate 1 and the lower ring plate 2 using a welding torch to ensure the stability of the blade 4 connection.

[0029] Example 3: Based on Example 2, the auxiliary components include a support frame 11, a tie rod 12, and a fastening bolt 13. The support frame 11 is fixed to the upper end face of the lower ring plate 2 by the fastening bolt 13. The support frame 11 connected by the fastening bolt 13 is easier to disassemble and replace. The support frame 11 is provided in three sets for supporting the upper ring plate 1 and the lower ring plate 2. The tie rod 12 is connected to the support frame 11 by a fixing nut. The other end of the tie rod 12 is fixed to the upper ring plate 1 by the fastening bolt 13. The tie rod 12 connected by the fastening bolt 13 is easier to disassemble and replace.

[0030] Both the upper ring plate 1 and the lower ring plate 2 are provided with reinforcing rings 14, and the sides of the upper ring plate 1 and the lower ring plate 2 are provided with side chamfers 15. The reinforcing rings 14 are provided on the sides of the upper ring plate 1 and the lower ring plate 2 to increase the structural stability.

[0031] In use, firstly, the first connecting block 7 on the upper end face of the blade 4 is aligned with the first connecting slot 5 on the upper ring plate 1 and inserted. Then, the first bent portion 8 on the end face of the first connecting block 7 is bent and fixed to the upper ring plate 1. Next, the second connecting block 9 on the lower end face of the blade 4 is aligned with the second connecting slot 6 on the lower ring plate 2 and inserted. Then, the second bent portion 10 on the end face of the second connecting block 9 is bent and fixed to the lower ring plate 2. Then, the blade 4 is welded and fixed at the connection points with the upper ring plate 1 and the lower ring plate 2 using a welding torch to ensure the stability of the blade 4 connection. Then, the support frame 11 is fixed to the upper end face of the lower ring plate 2 by fastening bolts 13. A tie rod 12 is connected to the support frame 11 by a fixing nut, and the other end of the tie rod 12 is fixed to the upper ring plate 1 by fastening bolts 13, providing connection support for the overall structure and preventing deformation between the upper ring plate 1 and the lower ring plate 2.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deformation-resistant fan impeller, comprising: Upper ring plate (1), lower ring plate (2) and shaft mounting part (3); a lower ring plate (2) is provided below the upper ring plate (1), and a groove is provided on one side of the lower ring plate (2), in which the shaft mounting part (3) is provided. The feature is that the upper ring plate (1) is connected to the lower ring plate (2) through a connecting component and an auxiliary component.

2. The anti-deformation fan impeller according to claim 1, characterized in that: The connecting assembly includes blades (4), a first connecting slot (5), and a second connecting slot (6); the blades (4) are equidistantly arranged between the upper ring plate (1) and the lower ring plate (2), and the upper ring plate (1) is equidistantly fixed with the first connecting slot (5), and the lower ring plate (2) is equidistantly fixed with the second connecting slot (6).

3. The anti-deformation fan impeller according to claim 2, characterized in that: A first connecting block (7) is adapted to be provided in the first connecting slot (5), and a first bending part (8) is provided at the end of the first connecting block (7), and the first connecting block (7) is fixedly connected to the upper end face of the blade (4).

4. The anti-deformation fan impeller according to claim 2, characterized in that: A second connecting block (9) is adapted to be provided in the second connecting slot (6), and a second bending part (10) is provided at the end of the second connecting block (9), and the second connecting block (9) is fixedly connected to the lower end face of the blade (4).

5. The anti-deformation fan impeller according to claim 1, characterized in that: The auxiliary components include a support frame (11), a pull rod (12), and a fastening bolt (13); the support frame (11) is fixed to the upper end face of the lower ring plate (2) by the fastening bolt (13), and the pull rod (12) is connected to the support frame (11) by a fixing nut, and the other end of the pull rod (12) is fixed to the upper ring plate (1) by the fastening bolt (13).

6. The anti-deformation fan impeller according to claim 1, characterized in that: Both the upper ring plate (1) and the lower ring plate (2) are provided with reinforcing rings (14), and the sides of the upper ring plate (1) and the lower ring plate (2) are provided with side chamfers (15).

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