A wing for an industrial ceiling fan
By combining streamlined design with anti-slip rubber strips and rubber strips, the problem of loosening of blades caused by vibration in industrial ceiling fans is solved, achieving a more stable connection between the blades and the fan blades, reducing eddies and pulsations, and improving service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KALE ENVIRONMENT TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-23
AI Technical Summary
In industrial ceiling fans, the adhesive coating in the contact area between the blades and the fan blades may age due to repeated vibrations, causing it to loosen and affecting the stability of the fan blades.
The curved left side and U-shaped right side of the wing blade inner fastener are fastened to the outer wall of the fan blade body. The streamlined design reduces airflow resistance. Multiple anti-slip rubber strips and cross-shaped rubber strips increase friction and cushioning effect. The adhesive filling area is used for bonding and fixing, which enhances the connection between the wing blade and the fan blade.
It effectively reduces eddy current generation, lowers the amplitude of vertical pulsation of the fan blades, prevents the blades from slipping or falling off, and improves connection stability and service life.
Smart Images

Figure CN224396766U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wing knife technology, and in particular relates to a wing knife for industrial ceiling fans. Background Technology
[0002] Industrial ceiling fans are large-diameter ceiling fan devices suitable for industrial sites, typically installed in high-ceilinged spaces such as factories, warehouses, and workshops. Industrial ceiling fans typically have blade diameters between 3 and 7 meters, capable of covering thousands of square meters of space at low speeds. This ensures uniform airflow distribution and effectively reduces indoor temperature and alleviates stuffiness through large-area airflow circulation. Blades, small fins installed on the blades, reduce vortex formation, making the airflow on the blade surface smoother and reducing the amplitude of vertical pulsation. For example, the blade root wing knife proposed in announcement number CN205977532U improves the wind capture capability of large-megawatt wind turbines with power outputs above 1.5MW and rotor diameters above 77 meters in low-wind-speed resource areas, thereby increasing the power generation capacity of wind turbines in the region. This is achieved without damaging the original blade structure, using the same manufacturing process as traditional blades, and by adding minimal material, a wing knife structure is installed at the blade root, improving the formation and development of vortices at the blade root with virtually no impact on the strength of the blades and the turbine.
[0003] Currently, in industrial ceiling fans, the blades are typically fastened to one side of the blade and attached to the blade surface during installation. Adhesive is applied to certain areas for further bonding. However, during long-term rotation, the adhesive applied to the contact area between the blade and the blade may age due to repeated vibrations, causing the blade to loosen and affecting the fan's performance. Therefore, this invention proposes a blade for industrial ceiling fans. Utility Model Content
[0004] This utility model provides a blade for an industrial ceiling fan. The blade's inner fastener, with its arc-shaped left side and U-shaped right side, engages with the outer wall of the fan blade body, enabling the blade to be secured to the fan blade body. The streamlined design of the outer blade and the inner fastener reduces airflow resistance, thereby reducing eddy currents and resulting in a smoother airflow over the fan blade body, minimizing vertical pulsation. Multiple anti-slip rubber strips increase the friction between the inner fastener and the fan blade body, preventing the inner fastener from slipping on the fan blade body. The sliding or slight displacement, along with the buffering of vibrations generated during the rotation of the fan blade body, and the bonding and fixing with adhesive in the glue-filled area, strengthens the connection between the wing blade and the fan blade body. By setting a pair of cross-shaped rubber strips tightly attached to the outer wall of the fan blade body, the fastening of the wing blade's internal fasteners to the fan blade body is made tighter, while buffering the vibrations during the rotation of the fan blade body, further preventing displacement or detachment, thereby further strengthening the connection between the wing blade and the fan blade body. In summary, this solves the problems in the background technology.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model discloses an industrial ceiling fan blade, comprising an outer blade, an inner fastener, and a fan blade body. The inner wall of the outer blade is fixedly connected to the outer wall of the inner fastener. The outer blade, inner fastener, and fan blade body are all streamlined. The left side of the inner fastener is arc-shaped, and the right side is U-shaped. Both the left and right sides of the inner fastener are fastened to the outer wall of the fan blade body, and the outer wall of the fan blade body is in contact with the inner wall of the inner fastener.
[0007] Furthermore, multiple anti-slip rubber strips are fixedly connected to the inner wall of the inner fastener of the wing blade near the left side. The multiple anti-slip rubber strips are distributed at intervals along the inner wall of the inner fastener of the wing blade, and the two adjacent anti-slip rubber strips form an adhesive filling area with the inner wall of the inner fastener of the wing blade.
[0008] Furthermore, all of the aforementioned anti-slip rubber strips are arc-shaped, and the surfaces of all the anti-slip rubber strips are provided with anti-slip textures.
[0009] Furthermore, a pair of rubber strips are glued between the left and right ends of the inner fastener of the wing blade, and the pair of rubber strips are arranged to cross each other, with the bottom ends of the pair of rubber strips in close contact with the outer wall of the fan blade body.
[0010] The present invention has the following advantages over the prior art:
[0011] 1. This technical solution uses the arc-shaped left side of the inner fastener of the wing blade to fasten to the outer wall of the fan blade body with the U-shaped right side, which can drive the wing blade to fasten to the fan blade body. Moreover, the outer blade of the wing blade and the inner fastener of the wing blade are streamlined, which reduces the resistance when the airflow passes through, thereby reducing the generation of vortices, making the airflow on the surface of the fan blade body more stable, and reducing the amplitude of the vertical pulsation of the fan blade body.
[0012] 2. This technical solution increases the friction between the inner fastener of the wing blade and the fan blade body by setting multiple anti-slip rubber strips, making it less likely for the inner fastener of the wing blade to slide or slightly displace on the fan blade body. At the same time, it buffers the vibration generated during the rotation of the fan blade body, and together with the adhesive in the glue filling area, it can strengthen the connection between the wing blade and the fan blade body.
[0013] 3. This technical solution uses a pair of cross-shaped rubber strips that are tightly attached to the outer wall of the fan blade body to make the fastener inside the wing blade and the fan blade body more tightly fastened. At the same time, it buffers the vibration during the rotation of the fan blade body, further preventing displacement or detachment, thereby further strengthening the connection between the wing blade and the fan blade body.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of a blade for an industrial ceiling fan according to the present invention;
[0017] Figure 2 This is a front view schematic diagram of the wing blade structure for an industrial ceiling fan according to the present invention;
[0018] Figure 3 This is a schematic diagram of the structure of the outer blade of the wing blade and the inner fastener and anti-slip rubber strip of the wing blade in this utility model;
[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;
[0020] Figure 5 This is a front view structural diagram of the outer blade and inner fastener of the wing blade in this utility model;
[0021] Figure 6This is a three-dimensional structural diagram of the rubber strip in this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Outer blade of the wing cutter; 2. Inner fastener of the wing cutter; 3. Fan blade body; 4. Anti-slip rubber strip; 5. Glue filling area; 6. Rubber strip. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:
[0027] Please see Figures 1-5 As shown, the present invention relates to an industrial ceiling fan blade, comprising an outer blade 1, an inner fastener 2, and a fan blade body 3. The inner wall of the outer blade 1 is fixedly connected to the outer wall of the inner fastener 2. The outer blade 1, the inner fastener 2, and the fan blade body 3 are all streamlined. The left side of the inner fastener 2 is arc-shaped, and the right side is U-shaped. Both the left and right sides of the inner fastener 2 are fastened to the outer wall of the fan blade body 3, and the outer wall of the fan blade body 3 is in contact with the inner wall of the inner fastener 2.
[0028] In the specific implementation process, the wing blade is taken and the arc-shaped left side and U-shaped right side of the inner fastener 2 of the wing blade are respectively fastened to the outer wall of the fan blade body 3, and moved along one side of the fan blade body 3 towards the fan blade body 3, causing the wing blade to be fastened to the fan blade body 3. The outer blade 1 of the wing blade and the inner fastener 2 of the wing blade are streamlined as a whole, which reduces the resistance when the airflow passes through, thereby reducing the generation of vortices, making the airflow on the surface of the fan blade body 3 more stable, and reducing the amplitude of the vertical pulsation of the fan blade body 3. Specific Implementation Example 2:
[0030] Please see Figure 3 and Figure 4As shown, in a preferred embodiment, a plurality of anti-slip rubber strips 4 are fixedly connected to the inner wall of the inner fastener 2 near the left side. The plurality of anti-slip rubber strips 4 are distributed at intervals along the inner wall of the inner fastener 2, and an adhesive filling area 5 is formed between two adjacent anti-slip rubber strips 4 and the inner wall of the inner fastener 2.
[0031] In the specific implementation process, when the inner wall of the inner fastener 2 of the wing blade is in contact with the outer wall of the fan blade body 3, the friction between the inner fastener 2 of the wing blade and the fan blade body 3 can be increased by multiple anti-slip rubber strips 4, making it difficult for the inner fastener 2 of the wing blade to slide or make slight displacement on the fan blade body 3. At the same time, through the elastic effect of the anti-slip rubber strips 4, the vibration transmitted to the inner fastener 2 of the wing blade can be buffered during the rotation of the fan blade body 3, reducing the impact of vibration. In conjunction with the bonding and fixing of the glue in the glue filling area 5, the connection between the wing blade and the fan blade body 3 can be strengthened.
[0032] Among them, the shape of multiple anti-slip rubber strips 4 is arc-shaped, and the surface of multiple anti-slip rubber strips 4 is provided with anti-slip texture.
[0033] The multiple anti-slip rubber strips 4 are all arc-shaped, which can better fit the curved surface of the fan blade body 3 and ensure full contact. At the same time, the anti-slip texture can enhance the friction between them and the fan blade body 3, thereby enhancing the anti-slip effect. Specific Implementation Example 3:
[0035] Please see Figure 1 and Figure 6 As shown, in a preferred embodiment, a pair of rubber strips 6 are glued between the left and right ends of the inner fastener 2 of the wing blade, and the pair of rubber strips 6 are arranged to cross each other, with the bottom ends of the pair of rubber strips 6 in close contact with the outer wall of the fan blade body 3.
[0036] In the specific implementation process, a pair of rubber strips 6 are bonded between the left and right ends of the inner fastener 2 of the wing blade, and by being arranged in a cross pattern, the inner fastener 2 of the wing blade and the fan blade body 3 are more tightly fastened, which helps to press the inner fastener 2 of the wing blade onto the fan blade body 3 more firmly. Moreover, during the rotation of the fan blade body 3, the elasticity of the rubber strips 6 is used to buffer its vibration, further preventing displacement or detachment, thereby further strengthening the connection between the wing blade and the fan blade body 3.
[0037] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0038] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.
[0039] The working principle of this utility model is as follows:
[0040] In use, the wing blade is picked up and its arc-shaped left side and U-shaped right side on the inner fastener 2 are fastened to the outer wall of the fan blade body 3, causing the multiple anti-slip rubber strips 4 on the left side to contact the outer wall of the fan blade body 3. Then, it moves along one side of the fan blade body 3 towards the fan blade body 3, causing the wing blade to fasten onto the fan blade body 3. Next, glue is filled into the glue filling area 5 for bonding and fixing, causing the inner wall of the inner fastener 2 of the wing blade to make close contact with the outer wall of the fan blade body 3. Next, one end of a pair of rubber strips 6 is glued to the left side of the inner fastener 2 of the wing blade, and through cross-stretching, the other end of the pair of rubber strips 6 is connected to the right side of the inner fastener 2 of the wing blade, so that the pair of cross-set rubber strips 6 are pressed against the outer wall of the fan blade body 3, thereby causing the wing blade to be firmly connected and fixed to the fan blade body 3.
[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An industrial ceiling fan blade, comprising outer blades (1), inner fasteners (2), and a blade body (3), characterized in that, The inner wall of the outer blade (1) of the wing blade is fixedly connected to the outer wall of the inner fastener (2) of the wing blade. The outer blade (1), the inner fastener (2) of the wing blade and the fan blade body (3) are all streamlined. The left side of the inner fastener (2) of the wing blade is arc-shaped and the right side of the inner fastener (2) of the wing blade is U-shaped. The left and right sides of the inner fastener (2) of the wing blade are fastened to the outer wall of the fan blade body (3) and the outer wall of the fan blade body (3) is in contact with the inner wall of the inner fastener (2) of the wing blade.
2. The wing blade for an industrial ceiling fan according to claim 1, characterized in that, Multiple anti-slip rubber strips (4) are fixedly connected to the inner wall of the inner fastener (2) of the wing blade near the left side. The multiple anti-slip rubber strips (4) are arranged at intervals along the inner wall of the inner fastener (2) of the wing blade, and the two adjacent anti-slip rubber strips (4) and the inner wall of the inner fastener (2) of the wing blade form an adhesive filling area (5).
3. The wing blade for an industrial ceiling fan according to claim 2, characterized in that, The multiple anti-slip rubber strips (4) are all arc-shaped, and the surfaces of the multiple anti-slip rubber strips (4) are provided with anti-slip textures.
4. The wing blade for an industrial ceiling fan according to claim 1, characterized in that, A pair of rubber strips (6) are glued between the left and right ends of the inner fastener (2) of the wing blade, and the pair of rubber strips (6) are arranged to cross each other. The bottom ends of the pair of rubber strips (6) are in close contact with the outer wall of the fan blade body (3).