Enhanced axial flow fan blade

Abstract

The utility model discloses a kind of reinforced axial flow fan blades, it is related to axial flow fan blade field, including mounting hub, the inner side of mounting hub is uniformly fixedly connected with installation component, another end of installation component is fixedly connected with mounting seat, the other side of mounting seat is uniformly fixedly connected with blade body, installation component includes the clamping frame being set in mounting hub inner side, the clamping frame penetrates mounting hub, the upper and lower sides of clamping frame are uniformly set with clamping hole, one side of mounting seat is fixedly connected with clamping block, clamping block and clamping frame are mutually inserted. The utility model uses above-mentioned structure, installation component is set in the inside of mounting hub, can reduce the eddy current and turbulence due to component obstruction, axial flow fan blade can more smoothly guide airflow, reduce energy loss, and then significantly improve wind energy conversion efficiency, ensure that axial flow fan blade always maintains efficient operating state during working process.

Description

Technical Field

[0001] This utility model belongs to the field of axial flow fan blades, and specifically relates to an enhanced axial flow fan blade. Background Technology

[0002] Axial flow fans have a wide range of applications in daily life. Axial flow refers to airflow that moves in the same direction as the fan blade axis. Examples include electric fans and air conditioner outdoor unit fans, which operate in an axial flow manner. Axial flow fans with axial blades are typically used in applications requiring higher flow rates but lower pressure, and are widely used in the air conditioning industry.

[0003] According to Chinese Patent No. CN217176961U, an axial flow fan blade is disclosed, including a hub and blades. The blade includes a root, a tip, a leading edge, and a trailing edge. The root is connected to the hub, the tip is located away from the hub, the leading edge is located at the front end of the axial flow fan blade in the direction of rotation, and the trailing edge is located at the rear end of the axial flow fan blade in the direction of rotation. The surface of the blade facing the airflow is the suction surface, and the surface of the blade facing away from the airflow is the pressure surface. The leading edge and trailing edge of the axial flow fan blade are bent along the direction of rotation. The leading edge of the axial flow fan blade is provided with a reinforcing rib, which is connected to the root and extends along the edge of the blade. This device has a simple structure and solves the problem that cracks easily appear near the root of the leading edge of the axial flow fan blade at high speeds, resulting in a low product qualification rate. It also avoids the problems of high cost and high energy consumption caused by increasing the thickness of the blade as a whole. As can be seen from the above structure, the blades and hub of the above device are fixedly connected and the blades cannot be disassembled. Once the blades are worn, deformed or damaged, the entire impeller must be replaced. This not only increases maintenance costs, but may also affect the normal operation of the fan. In contrast, detachable blades can be partially adjusted or replaced without replacing the entire impeller, thereby improving maintenance efficiency. Therefore, a replaceable axial flow fan blade is proposed. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an enhanced axial flow fan blade to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An enhanced axial flow fan blade includes a mounting hub. Mounting components are fixedly connected to the inner side of the mounting hub. A mounting base is fixedly connected to the other end of each mounting component. A blade body is fixedly connected to the other side of each mounting base. Each mounting component includes a snap-fit ​​frame disposed inside the mounting hub, extending through the hub. Snap-fit ​​holes are provided on both the upper and lower sides of the snap-fit ​​frame. A snap-fit ​​block is fixedly connected to one side of the mounting base, and the snap-fit ​​block interlocks with the snap-fit ​​frame. Circular grooves are provided on both the upper and lower sides of the snap-fit ​​block. A snap-fit ​​spring is fixedly connected inside each circular groove. A snap-fit ​​connector is fixedly connected to the other end of each snap-fit ​​spring, and the snap-fit ​​connector interlocks with the snap-fit ​​hole.

[0006] As a preferred technical solution, release springs are fixedly connected to both sides of the upper and lower sides of the snap-fit ​​frame on both sides of the snap-fit ​​hole, and a pressing plate is fixedly connected to the other end of each release spring. A release block is fixedly connected to the inner side of each pressing plate, and the release block is inserted into the snap-fit ​​hole.

[0007] As a preferred technical solution, a reinforcing rod is fixedly connected to the other end of each snap-fit ​​frame, and a central ring is fixedly connected to the other end of each reinforcing rod. A through hole is provided on the outer side of the central ring, and the through hole is inserted into the driving device.

[0008] As a preferred technical solution, a reinforcing plate is fixedly connected to the inner side of the mounting hub, and a snap-fit ​​groove is opened at the other end of the reinforcing plate. The snap-fit ​​groove is inserted into the center ring, and a fixing through hole is opened on both the upper and lower sides of the reinforcing plate.

[0009] As a preferred technical solution, one side of the mounting base is engaged with the outer side of the mounting hub, and a limiting block is fixedly connected to both sides of the mounting base on one side of the engaging block. A limiting groove is formed on both sides of the outer surface of the mounting hub on the engaging frame, and the limiting groove and the limiting block are engaged with each other.

[0010] As a preferred technical solution, both sides of the mounting hub are fixedly connected to a sealing plate, which covers the upper and lower sides of the mounting hub. The surface of the sealing plate is provided with mounting holes, which are connected to the drive device.

[0011] As a preferred technical solution, the outer surface of the sealing plate is provided with multiple mounting through holes, and mounting screws are inserted into the interior of each mounting through hole. The mounting screws pass through the mounting through holes and are threadedly connected to the mounting hub.

[0012] In summary, the present invention has the following main advantages: First, the present invention, through the installation components, allows for the following process: after the blade body is replaced, the new blade body is installed with the mounting hub by inserting the snap-fit ​​block into the snap-fit ​​frame. During insertion, the snap-fit ​​connector is squeezed into the inside of the circular groove. After the snap-fit ​​block is fully inserted into the snap-fit ​​frame, the position of the snap-fit ​​hole is aligned with the position of the circular groove. At this time, the snap-fit ​​connector will pop out of the circular groove under the action of the snap-fit ​​spring, so that the snap-fit ​​connector and the snap-fit ​​hole can be snapped together, thereby achieving the snap-fit ​​effect and thus enabling the installation of the blade body. Secondly, the aforementioned installation components simplify the blade installation process and significantly improve assembly efficiency. The spring-reset self-locking mechanism ensures a tight and reliable connection, effectively avoiding the risk of loosening. This balances installation convenience with structural stability. Furthermore, placing the installation components inside the mounting hub reduces eddies and turbulence caused by component obstruction, allowing the axial flow blades to guide airflow more smoothly, reducing energy loss, and thus significantly improving wind energy conversion efficiency. This ensures that the axial flow blades maintain a high-efficiency operating state throughout the operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view structural diagram of the present invention; Figure 3 This is a schematic diagram of the installation component of this utility model; Figure 4 This is a utility model Figure 1 A magnified structural diagram of part A.

[0014] Reference numerals: 1. Mounting hub; 2. Mounting assembly; 21. Snap-fit ​​frame; 22. Snap-fit ​​hole; 23. Snap-fit ​​block; 24. Circular groove; 25. Snap-fit ​​spring; 26. Snap-fit ​​connector; 3. Mounting base; 4. Blade body; 5. Limiting slot; 6. Limiting block; 7. Sealing plate; 8. Mounting insertion hole; 9. Mounting through hole; 10. Mounting screw; 11. Reinforcing rod; 12. Center ring; 13. Through hole; 14. Reinforcing plate; 15. Snap-fit ​​groove; 16. Fixing through hole; 17. Release spring; 18. Pressing plate; 19. Release block. Detailed Implementation

[0015] Example refer to Figures 1 to 4An enhanced axial flow fan blade according to this embodiment includes a mounting hub 1. Mounting components 2 are fixedly connected to the inner side of the mounting hub 1. A mounting base 3 is fixedly connected to the other end of the mounting components 2. A blade body 4 is fixedly connected to the other side of the mounting base 3. The mounting components 2 include a snap-fit ​​frame 21 disposed inside the mounting hub 1, penetrating the mounting hub 1. Snap-fit ​​holes 22 are provided on both the upper and lower sides of the snap-fit ​​frame 21. A snap-fit ​​block 23 is fixedly connected to one side of the mounting base 3. The snap-fit ​​block 23 and the snap-fit ​​frame 21 are interlocked. Circular grooves 24 are provided on both the upper and lower sides of the snap-fit ​​block 23. A snap-fit ​​spring 25 is fixedly connected inside the circular groove 24. A snap-fit ​​connector 26 is fixedly connected to the other end of the snap-fit ​​spring 25. The snap-fit ​​connector 26 is interlocked with the snap-fit ​​hole 22.

[0016] refer to Figure 4 The upper and lower sides of the snap-fit ​​frame 21 are fixedly connected with release springs 17 on both sides of the snap-fit ​​hole 22. The other end of the release spring 17 is fixedly connected with a pressing plate 18. The inner side of the pressing plate 18 is fixedly connected with a release block 19. The release block 19 is inserted into the snap-fit ​​hole 22. When the blade body 4 needs to be disassembled, the pressing plate 18 is pressed inward to drive the release block 19 into the snap-fit ​​hole 22. After the release block 19 enters the snap-fit ​​hole 22, the snap-fit ​​connector 26 can be pushed out of the snap-fit ​​hole 22. After the snap-fit ​​hole 22 and the snap-fit ​​connector 26 are disengaged, the blade body 4 can be easily disassembled.

[0017] refer to Figure 4 The other end of the snap-fit ​​frame 21 is fixedly connected to a reinforcing rod 11, and the other end of the reinforcing rod 11 is fixedly connected to a central ring 12. A through hole 13 is provided on the outer side of the central ring 12, and the through hole 13 is inserted into the drive device. The drive shaft and axial flow blades of the drive device can be installed through the central ring 12 and the through hole 13. Under the action of the reinforcing rod 11, the stability of the central ring 12 can be increased, and the shaking situation when the drive axial flow blades are rotated is avoided.

[0018] refer to Figure 4 A reinforcing plate 14 is fixedly connected to the inner side of the mounting hub 1. The other end of the reinforcing plate 14 is provided with a snap-fit ​​groove 15, which is inserted into the center ring 12. The upper and lower sides of the reinforcing plate 14 are provided with fixing through holes 16. The reinforcing plate 14 and the center ring 12 are snapped together by the snap-fit ​​groove 15. After the snap-fit ​​is completed, the fixing screw is threaded through the fixing through hole 16 and connected to the center ring 12. Then the structure is installed on the mounting hub 1, which can further increase the stability of the axial flow fan blade after installation.

[0019] refer to Figure 1One side of the mounting base 3 is engaged with the outer side of the mounting hub 1. Limiting blocks 6 are fixedly connected to both sides of the mounting base 3 on the side of the engaging block 23. Limiting slots 5 are opened on both sides of the outer surface of the mounting hub 1 on the engaging frame 21. The limiting slots 5 and the limiting blocks 6 are engaged with each other. The limiting slots 5 and the limiting blocks 6 can limit the mounting base 3 during use, thereby increasing the stability of the blade body 4 during use.

[0020] refer to Figure 2 Both sides of the mounting hub 1 are fixedly connected to a sealing plate 7, which covers the upper and lower sides of the mounting hub 1. The surface of the sealing plate 7 is provided with mounting holes 8, which are inserted into the drive device. The outer surface of the sealing plate 7 is provided with multiple mounting through holes 9, and mounting screws 10 are inserted into the mounting through holes 9. The mounting screws 10 pass through the mounting through holes 9 and are threadedly connected to the mounting hub 1. The sealing plate 7 can prevent airflow from entering the interior of the mounting hub 1 and causing airflow disturbance. The mounting screws 10 can also facilitate the installation and removal of the sealing plate 7.

[0021] Operating principle and advantages: First, the reinforcing plate 14 and the central ring 12 are snapped together through the snap-in slot 15. After snapping, the fixing screw is threaded through the fixing through hole 16 and connected to the central ring 12. Then, this structure is installed with the mounting hub 1. After installation, the stability of the axial flow fan blades can be further increased. The drive shaft and axial flow blades of the drive equipment can be installed through the central ring 12 and the through hole 13. Under the action of the reinforcing rod 11, the stability of the central ring 12 can be increased, avoiding shaking when the drive axial flow fan blades rotate. Then, the snap-in block 23 is inserted into the snap-in frame 21. When the snap-fit ​​connector 26 is squeezed into the inside of the circular groove 24, and then after the snap-fit ​​block 23 is fully inserted into the inside of the snap-fit ​​frame 21, the position of the snap-fit ​​hole 22 is consistent with the position of the circular groove 24. At this time, the snap-fit ​​connector 26 will pop out of the circular groove 24 under the action of the snap-fit ​​spring 25, so that the snap-fit ​​connector 26 and the snap-fit ​​hole 22 can be snapped together, thereby achieving the snap-fit ​​effect, and then the blade body 4 can be installed. After the installation is completed, the axial flow fan can be started by the drive device. At the same time, under the action of the sealing plate 7, the airflow can be prevented from entering the inside of the mounting hub 1 and causing airflow disturbance. And under the action of the mounting screw 10, the sealing plate 7 can be easily disassembled and assembled.

Claims

1. An enhanced axial flow fan blade, characterized in that: The assembly includes a mounting hub (1), on which mounting components (2) are fixedly connected. At the other end of the mounting components (2), a mounting base (3) is fixedly connected. At the other side of the mounting base (3), a blade body (4) is fixedly connected. The mounting components (2) include a snap-fit ​​frame (21) disposed inside the mounting hub (1). The snap-fit ​​frame (21) penetrates the mounting hub (1). Snap-fit ​​holes (22) are provided on both the upper and lower sides of the snap-fit ​​frame (21). A snap-fit ​​block (23) is fixedly connected to one side of the mounting base (3). The snap-fit ​​block (23) is inserted into the snap-fit ​​frame (21). Circular grooves (24) are provided on both the upper and lower sides of the snap-fit ​​block (23). A snap-fit ​​spring (25) is fixedly connected inside the circular groove (24). A snap-fit ​​connector (26) is fixedly connected to the other end of the snap-fit ​​spring (25). The snap-fit ​​connector (26) is snapped into the snap-fit ​​hole (22).

2. The enhanced axial flow fan blade according to claim 1, characterized in that: The upper and lower sides of the snap-fit ​​frame (21) are fixedly connected to release springs (17) on both sides of the snap-fit ​​hole (22). The other end of the release springs (17) is fixedly connected to a pressing plate (18). The inner side of the pressing plate (18) is fixedly connected to a release block (19). The release block (19) is inserted into the snap-fit ​​hole (22).

3. The enhanced axial flow fan blade according to claim 1, characterized in that: The other end of each snap-fit ​​frame (21) is fixedly connected to a reinforcing rod (11), and the other end of each reinforcing rod (11) is fixedly connected to a central ring (12). A through hole (13) is provided on the outer side of the central ring (12), and the through hole (13) is plugged into the drive device.

4. The enhanced axial flow fan blade according to claim 1, characterized in that: The inner side of the mounting hub (1) is fixedly connected with a reinforcing plate (14), and the other end of the reinforcing plate (14) is provided with a snap-in groove (15). The snap-in groove (15) is inserted into the center ring (12). The upper and lower sides of the reinforcing plate (14) are provided with fixing through holes (16).

5. The enhanced axial flow fan blade according to claim 1, characterized in that: One side of the mounting base (3) is engaged with the outer side of the mounting hub (1). One side of the mounting base (3) is fixedly connected to both sides of the locking block (23). The outer surface of the mounting hub (1) is provided with both sides of the locking frame (21) and the locking groove (5) is engaged with the locking block (6).

6. The enhanced axial flow fan blade according to claim 1, characterized in that: Both sides of the mounting hub (1) are fixedly connected with a sealing plate (7). The sealing plate (7) covers the upper and lower sides of the mounting hub (1). The surface of the sealing plate (7) is provided with mounting holes (8). The mounting holes (8) are connected to the drive device.

7. The enhanced axial flow fan blade according to claim 6, characterized in that: The outer surface of the sealing plate (7) is provided with multiple mounting through holes (9), and mounting screws (10) are inserted into the interior of each mounting through hole (9). The mounting screws (10) pass through the mounting through holes (9) and are threadedly connected to the mounting hub (1).

Images