High-stability anti-deformation centrifugal fan blade

Abstract

The utility model relates to the technical field of centrifugal fan blades, and provides a high-stability anti-deformation centrifugal fan blade which comprises a bottom plate, blade bodies are evenly arranged at the top end of the bottom plate, connecting structures are fixed to the top ends of the blade bodies, and reinforcing structures are fixed to the two sides of each blade body. The reinforcing structure is arranged, the vertical reinforcing ribs can play a role in bearing longitudinal loads, the longitudinal bearing capacity of the blade body is improved, the reinforcing rods can support transverse loads, the shearing strength of the structure is remarkably improved, the connecting plates and the connecting blocks are used in a combined mode and can jointly act on different directions of the blade body, and therefore the blade body can be used in different directions. According to the centrifugal fan blade, a complete stress system is formed, so that the overall performance and safety of the structure are improved, the blade body is prevented from deforming and bending during use, the outer side of the flow guide plate is designed to be in an arc shape, wind resistance can be reduced, the function that the blade body is prevented from deforming and bending conveniently is achieved, and the stability of the centrifugal fan blade during use is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal fan blade technical field, especially in a kind of high-stability anti-deformation centrifugal fan blade. BACKGROUND

[0002] Fan as a kind of general machinery, there is extensive application in all walks of life. In the home appliance industry, to meet the requirements of various cooling, fan's use is also essential. Among them, centrifugal fan is most widely used with its large pressure, small flow, the characteristics of changing airflow direction. However, with the continuous progress of technology and the intensification of market competition, the performance requirement of centrifugal fan is also higher and higher. Therefore, a kind of high-stability anti-deformation centrifugal fan blade needs to be designed;

[0003] Therefore, the patent with the announcement number CN205225826U discloses a kind of centrifugal fan blade, including centrifugal fan blade body, the centrifugal fan blade body includes flow guide ring, circular ring blade bottom plate, hub and fan blade, the fan blade is arranged between flow guide ring and circular ring blade bottom plate, the hub is equipped in flow guide ring, the cylindrical plastic shaft hole sleeve is equipped on the hub, the cylindrical plastic shaft hole sleeve is equipped with shaft hole sleeve support around, the fan blade includes inner arc surface and outer arc surface. The utility model uses renewable polypropylene and polyethylene terephthalate as the main raw material of centrifugal fan blade, so that centrifugal fan blade has the characteristics of sound absorption, heat resistance, humidity resistance, performance stability, flame retardant, fire prevention and the like, ensures use performance, by the setting of fan blade inner arc surface and outer arc surface, and the setting air inlet angle is not greater than 10 °, air outlet angle is between 25 °-35 °, ensure that centrifugal fan blade is relatively reduced in noise when working, and wind power is large, which helps to pass through;

[0004] Although the centrifugal fan blade in the above can be relatively reduced in noise when in use, the blade is prone to deformation when subjected to large centrifugal force during rotation, so a kind of high-stability anti-deformation centrifugal fan blade needs to be designed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high-stability anti-deformation centrifugal fan blade to solve the defects that the blade of existing centrifugal fan blade is prone to deformation when subjected to large centrifugal force during rotation.

[0006] In order to solve the above technical problems, the utility model provides the following technical scheme: a kind of high-stability anti-deformation centrifugal fan blade, including bottom plate;

[0007] The top of the bottom plate is uniformly provided with blade body, and the top of the blade body is fixed with connecting structure.

[0008] The reinforcing structure is arranged on both sides of the blade body, and comprises vertical reinforcing ribs, reinforcing rods and flow guide plates.

[0009] The inner side of the bottom plate is fixed with a shaft sleeve.

[0010] Further, the blade bodies are arranged at equal intervals at the top end of the bottom plate, and the top view of the blade body is designed to be inclined.

[0011] Further, the connecting structure comprises a connecting plate, connecting blocks and limiting shafts, the connecting plate is arranged above the blade body, the connecting blocks are uniformly shrink-fitted and connected in the connecting plate, and the limiting shafts are shrink-fitted and connected to the outer part of the connecting plate.

[0012] Further, the top view of the connecting plate is designed to be ring-shaped, and the connecting blocks are arranged at equal intervals in the connecting plate.

[0013] Further, the bottom end of the connecting block extends to the outer part of the connecting plate and is fixedly connected with the top end of the blade body.

[0014] Further, the vertical reinforcing ribs are symmetrically arranged on both sides of the blade body, and the reinforcing rods are arranged at equal intervals on the outer side of the vertical reinforcing ribs.

[0015] Further, the reinforcing rods are symmetrically arranged on both sides of the blade body, and the side view of the flow guide plate is designed to be semicircular.

[0016] The centrifugal fan blade has the advantages that:

[0017] The vertical reinforcing ribs can bear longitudinal load, the reinforcing rods can bear transverse load, the connecting plate and the connecting blocks can jointly act on the blade body in different directions, the complete stress system is formed, the overall performance and safety of the structure are improved, the deformation and bending of the blade body are avoided, the outer side of the flow guide plate is designed to be arc-shaped, the wind resistance is reduced, the deformation and bending of the blade body are avoided, and the stability of the centrifugal fan blade during use is improved.

[0018] Through the connecting structure, the blade bodies can be connected together as a whole through the connecting plates, so that the stability of the blade bodies during use is improved, the single blade body is prevented from being broken by external force during use, the device has the function of protecting the blade bodies, and the stability of the centrifugal fan blade during use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is an overall three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is a front view cross-section structure schematic diagram of the utility model;

[0021] Figure 3 It is a top view cross-section structure schematic diagram of the utility model;

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the utility model; Figure 3 It is an enlarged structure schematic diagram of A place in the middle;

[0023] Figure 5 It is a front view cross-section three-dimensional structure schematic diagram of the utility model;

[0024] Figure 6 It is a side view cross-section three-dimensional structure schematic diagram of the utility model.

[0025] The reference signs in the drawing are explained as follows: 1, bottom plate; 2, blade body; 3, connecting structure; 31, connecting plate; 32, connecting block; 33, limiting shaft; 4, reinforcing structure; 41, vertical reinforcing rib; 42, reinforcing rod; 43, flow guide plate; 5, shaft sleeve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-6 The utility model provides a high stability anti -deformation's centrifugal fan blade, including bottom plate 1.

[0028] Refer to Figure 1 , Figure 2 , Figure 5 and Figure 6The top end of the bottom plate 1 is uniformly provided with a blade body 2, the blade body 2 is distributed at equal intervals at the top end of the bottom plate 1, the top view of the blade body 2 is designed to be inclined, the top end of the blade body 2 is fixed with a connecting structure 3, the connecting structure 3 comprises a connecting plate 31, a connecting block 32 and a limiting shaft 33, the connecting plate 31 is arranged above the blade body 2, the connecting block 32 is uniformly and tightly clamped in the connecting plate 31, the top of the connecting block 32 is externally and tightly clamped with the limiting shaft 33, the top view of the connecting plate 31 is designed to be annular, the connecting block 32 is distributed at equal intervals in the connecting plate 31, and the bottom end of the connecting block 32 extends to the outside of the connecting plate 31 and is fixedly connected with the top end of the blade body 2.

[0029] The inside of the connecting plate 31 is uniformly provided with a reserved groove, when the blade body 2 is integrally connected, the connecting block 32 at the top end of the blade body 2 is inserted into the reserved groove in the connecting plate 31, the connecting block 32 and the connecting plate 31 are tightly clamped through the reserved groove, the connecting block 32 and the connecting plate 31 can be fixed together, so that the blade body 2 and the connecting plate 31 are fixed together, the top of the connecting block 32 is provided with a through groove, and then the limiting shaft 33 is inserted into the through groove at the top of the connecting block 32 to limit the connecting block 32, thereby playing a secondary fixing role.

[0030] Referring to Figures 1-6 The two sides of the blade body 2 are fixedly provided with a reinforcing structure 4, the reinforcing structure 4 comprises a vertical reinforcing rib 41, a reinforcing rod 42 and a flow guide plate 43, the reinforcing rod 42 is fixedly arranged on the two sides of the blade body 2, the vertical reinforcing rib 41 is fixedly arranged on the outer wall of the blade body 2 at two ends of the reinforcing rod 42, and the flow guide plate 43 is fixedly arranged on the side, away from the blade body 2, of the reinforcing rod 42, the vertical reinforcing rib 41 is symmetrically distributed on the two sides of the blade body 2, the reinforcing rod 42 is distributed at equal intervals on the outer side of the vertical reinforcing rib 41, the reinforcing rod 42 is symmetrically distributed on the two sides of the blade body 2, the side view of the flow guide plate 43 is designed to be semicircular, and the inner side of the bottom plate 1 is fixedly provided with a shaft sleeve 5.

[0031] The vertical reinforcing rib 41 can bear longitudinal load and improve the longitudinal bearing capacity of the blade body 2, the reinforcing rod 42 can bear transverse load and significantly increase the shear strength of the structure, the connecting plate 31 and the connecting block 32 can jointly act on the blade body 2 in different directions to form a complete stress system, so as to improve the overall performance and safety of the structure, avoid deformation and bending of the blade body 2 during use, and reduce wind resistance by designing the outer side of the flow guide plate 43 to be arc-shaped.

[0032] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-stability anti-deformation centrifugal fan blade, comprising a bottom plate (1); Characterized in that: The top end of the bottom plate (1) is uniformly provided with a blade body (2), and the top end of the blade body (2) is fixedly provided with a connecting structure (3); Both sides of the blade body (2) are fixedly provided with a reinforcing structure (4), the reinforcing structure (4) comprises vertical reinforcing ribs (41), reinforcing rods (42) and guide plates (43), the reinforcing rods (42) are uniformly fixed on both sides of the blade body (2), the vertical reinforcing ribs (41) are uniformly fixed on the outer walls of the blade body (2) at both ends of the reinforcing rods (42), and the guide plates (43) are fixed on the sides of the reinforcing rods (42) away from the blade body (2); The inner side of the bottom plate (1) is fixedly provided with a shaft sleeve (5).

2. A high-stability anti-deformation centrifugal fan blade according to claim 1, characterized in that: The blade bodies (2) are equally spaced on the top end of the bottom plate (1), and the top view of the blade body (2) is designed to be inclined.

3. The high-stability anti-deformation centrifugal fan blade according to claim 1, characterized in that: The connecting structure (3) comprises a connecting plate (31), a connecting block (32) and a limiting shaft (33), the connecting plate (31) is arranged above the blade body (2), the connecting block (32) is uniformly shrink-fitted and connected in the connecting plate (31), and the top of the connecting block (32) is externally shrink-fitted and connected with the limiting shaft (33).

4. The high-stability anti-deformation centrifugal fan blade according to claim 3, characterized in that: The top view of the connecting plate (31) is designed to be ring-shaped, and the connecting blocks (32) are equally spaced in the connecting plate (31).

5. The high-stability anti-deformation centrifugal fan blade according to claim 3, characterized in that: The bottom end of the connecting block (32) extends to the outside of the connecting plate (31) and is fixedly connected with the top end of the blade body (2).

6. The high-stability anti-deformation centrifugal fan blade according to claim 1, characterized in that: The vertical reinforcing ribs (41) are symmetrically distributed on both sides of the blade body (2), and the reinforcing rods (42) are equally spaced on the outside of the vertical reinforcing ribs (41).

7. The high-stability anti-deformation centrifugal fan blade according to claim 1, characterized in that: The reinforcing rods (42) are symmetrically distributed on both sides of the blade body (2), and the side view of the guide plate (43) is designed to be semicircular.

Images