New type of industrial fan blade with internal safety structure

Abstract

This utility model discloses a novel industrial fan blade with an internal safety structure, comprising a fan blade body, an extension assembly mounted on the outside of the fan blade body, and an extension blade slidably fitted onto the outside of the fan blade body. The extension blade has several equidistantly distributed connecting holes, all vertically arranged and completely penetrating the extension blade. Two connecting holes are also provided at one end of the fan blade body near the extension blade. A connector is installed in each of the two connecting holes inside the fan blade body. Two clearance grooves are provided on the top and bottom outer walls of the extension blade. Four limiting protrusions are provided at one end of the fan blade body near the extension blade. This utility model, by setting the extension assembly, allows for adjustment of the overall length of the fan blade according to the installation environment and requirements. This design significantly enhances the adaptability of the ceiling fan in various complex environments, ensuring its efficient and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of fan blade technology, specifically to a novel industrial fan blade with an internal safety structure. Background Technology

[0002] Industrial fans are commonly used for ventilation and cooling in large spaces such as industrial plants, logistics warehouses, waiting rooms, exhibition halls, stadiums, and shopping malls. They consist of a chassis, fan blade assembly, motor, and mounting plate.

[0003] A search revealed a utility model patent with Chinese patent publication number CN219452504U, which discloses a safety anti-breakage device for industrial fan blades. The device includes an aluminum alloy fan blade, a cavity, a steel wire rope, a first steel wire clamp, a plug screw, and a second steel wire clamp. The aluminum alloy fan blade has a cavity in the center, and cavity reinforcing ribs are provided between the cavities. A mounting through hole is provided in the center of the end face of the cavity reinforcing rib at one end of the aluminum alloy fan blade, and a steel wire rope is inserted into the mounting through hole.

[0004] Currently, industrial ceiling fan blades generally adopt a fixed rigid structure and lack length adjustment capability, making them difficult to adapt to the needs of complex and ever-changing industrial scenarios. In working environments with large spatial spans or significant differences in floor height, fixed-length fan blades can easily cause insufficient wind speed in local areas or overall energy waste, indicating room for improvement. Utility Model Content

[0005] The purpose of this invention is to provide a novel industrial fan blade with an internal safety structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel industrial fan blade with an internal safety structure, comprising a fan blade body, an extension assembly installed on the outside of the fan blade body, the extension assembly including an extension blade slidably sleeved on the outside of the fan blade body, the extension blade having a plurality of equally spaced connection holes I, all of which are vertically arranged and completely penetrate the extension blade, the fan blade body also having two connection holes I at one end near the extension blade, each of the two connection holes I inside the fan blade body having a connector installed thereon, the top and bottom outer walls of the extension blade having two clearance grooves, the fan blade body having four limiting protrusions at one end near the extension blade, the four limiting protrusions being slidably inserted into the four clearance grooves respectively.

[0007] The overall length of the fan blades can be adjusted according to the installation environment and needs. This design helps to significantly enhance the adaptability of the ceiling fan in various complex environments and ensure its efficient and stable operation. The extension blade is fitted onto the outside of the fan blade body from the end away from the limit protrusion. Then, the cover plate is fixed to the opening of the extension blade with bolts. Next, the total length of the extension blade and the fan blade body is adjusted as needed. Since the extension blade is not restricted at this time, it can slide freely along the fan blade body until the appropriate length is reached. The connecting hole 1 inside the extension blade and the fan blade body is aligned. Finally, the two connectors are passed through the connecting hole 1 to connect the two, so that it will not shake during use.

[0008] As a further preferred embodiment of this technical solution, a fixing member is slidably inserted into the end of the fan blade body away from the extended blade, and a reinforcing component is installed between the fan blade body and the fixing member. The reinforcing component includes several connecting holes II opened inside the fixing member, and several connecting holes II are also opened inside the fan blade body.

[0009] As a further preferred embodiment of this technical solution, the top outer wall of the fixing member has two parallel limiting grooves, and the top inner wall of the fan blade body is provided with a limiting pin that matches the limiting grooves.

[0010] As a further preferred embodiment of this technical solution, the end of the fixing member away from the fan blade body is provided with a through hole, and a steel wire rope is slidably inserted into the through hole. The other end of the steel wire rope passes through the fan blade body and extends outward. A fixing clip is installed at the other end of the steel wire rope. The fixing clip is slidably inserted into the opening of the fan blade body. A connection hole three is provided inside the insertion end of the fixing clip. A connection hole three is also provided inside the fan blade body.

[0011] Insert the fastener into the fan blade body. Then, use bolts to connect and fix the fastener and fan blade body through the second connection hole. Next, thread the steel wire rope through the fan blade body, passing one end through the through hole. Then, use locking devices to fix the end of the steel wire rope. Next, insert the fixing clip, which is fixed to the other end of the steel wire rope with fasteners, into the opening of the fan blade body. Finally, use screws to connect the fan blade body and the fixing clip through the third connection hole. This reinforces the fan blade body again. The steel wire rope can support the fan blade body, so even if the fan blade body falls, there is traction, preventing it from falling to the ground.

[0012] As a further preferred embodiment of this technical solution, the inner wall of the end of the fixing member away from the fan blade body has two mounting holes.

[0013] As a further preferred embodiment of this technical solution, two reinforcing strips are installed on the top outer wall and the bottom outer wall of the extended blade, and the four reinforcing strips respectively cover the outside of the four clearance grooves.

[0014] As a further preferred embodiment of this technical solution, both the fan blade body and the extended blades are made of aluminum alloy.

[0015] This utility model provides a novel industrial fan blade with an internal safety structure, which has the following beneficial effects:

[0016] (1) By setting an extension component, the overall length of the fan blade can be adjusted according to the installation environment and needs. This design helps to significantly enhance the adaptability of the ceiling fan in various complex environments and ensure its efficient and stable operation. The extension blade is sleeved on the outside of the fan blade body from the end away from the limit protrusion. Then, the cover plate is fixed to the opening of the extension blade with bolts. Then, the total length of the extension blade and the fan blade body is adjusted as needed. Since the extension blade is not restricted at this time, it can slide freely along the fan blade body until the appropriate length is reached. The connection hole 1 inside the extension blade and the fan blade body is aligned. Finally, the two connectors are passed through the connection hole 1 to connect the two together so that they will not shake randomly during use.

[0017] (2) This utility model sets up a reinforcement component, inserts the fixing component into the fan blade body, and then uses bolts to connect and fix the two by passing through the connection hole two of the fixing component and the fan blade body. Then, the steel wire rope is passed through the fan blade body, with one end passing through the through hole. Then, the end of the steel wire rope is fixed by the locking component. Then, the fixing clip fixed to the other end of the steel wire rope by the fastener is inserted into the opening of the fan blade body. Finally, the fan blade body and the fixing clip are connected by screws passing through the connection hole three. This reinforces the fan blade body again. The steel wire rope can support the fan blade body. Even if the fan blade body falls, there is still traction and it will not fall to the ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall third-view structure of this utility model;

[0021] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] In the diagram: 1. Fan blade body; 2. Fixing component; 3. Extension component; 4. Reinforcing component; 301. Extension blade; 302. Connection hole one; 303. Connecting component; 304. Limiting protrusion; 305. Clearance groove; 306. Reinforcing strip; 401. Connection hole two; 402. Through hole; 403. Steel wire rope; 404. Fixing clip; 405. Connection hole three; 406. Limiting groove; 407. Limiting pin. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown, in this embodiment, a novel industrial fan blade with an internal safety structure includes a fan blade body 1. An extension component 3 is installed on the outside of the fan blade body 1. The extension component 3 includes an extension blade 301 that is slidably sleeved on the outside of the fan blade body 1. Several equally spaced connection holes 302 are opened inside the extension blade 301, and the connection holes 302 are all vertically arranged and completely penetrate the extension blade 301. Two connection holes 302 are also opened at one end of the fan blade body 1 near the extension blade 301. A connector 303 is installed in each of the two connection holes 302 inside the fan blade body 1. Two clearance grooves 305 are opened on the top outer wall and the bottom outer wall of the extension blade 301. Four limiting protrusions 304 are provided at one end of the fan blade body 1 near the extension blade 301. The four limiting protrusions 304 are slidably inserted into the four clearance grooves 305 respectively.

[0025] The extension blade 301 is fitted onto the outside of the fan blade body 1 from the end away from the limiting protrusion 304. Then, the cover plate is fixed to the opening of the extension blade 301 with bolts. Next, the total length of the extension blade 301 and the fan blade body 1 is adjusted as needed. Since the extension blade 301 is not restricted at this time, it can slide freely along the fan blade body 1 until a suitable length is reached and the connecting hole 302 inside the extension blade 301 and the fan blade body 1 is aligned. Finally, the two connecting pieces 303 are passed through the connecting hole 302 to connect the two, so that they will not shake freely during use. Even if the connecting piece 303 becomes loose and comes off, the limiting protrusion 304 can still abut the extension blade 301 to prevent it from falling to the ground and causing injury to people.

[0026] like Figure 2 , Figure 3 and Figure 4As shown, a fixing member 2 is slidably inserted into one end of the fan blade body 1 away from the extended blade 301. A reinforcing component 4 is installed between the fan blade body 1 and the fixing member 2. The reinforcing component 4 includes several connecting holes 401 opened inside the fixing member 2. Several connecting holes 401 are also opened inside the fan blade body 1.

[0027] The top outer wall of the fastener 2 has two parallel limiting grooves 406, and the top inner wall of the fan blade body 1 has a limiting pin 407 that matches the limiting grooves 406.

[0028] The end of the fixing component 2 away from the fan blade body 1 has a through hole 402. A steel wire rope 403 is slidably inserted into the through hole 402. The other end of the steel wire rope 403 passes through the fan blade body 1 and extends outward. A fixing clip 404 is installed at the other end of the steel wire rope 403. The fixing clip 404 is slidably inserted into the opening of the fan blade body 1. A connection hole 405 is opened inside the insertion end of the fixing clip 404. A connection hole 405 is also opened inside the fan blade body 1.

[0029] Insert the fixing component 2 into the fan blade body 1. Then, use bolts to connect and fix the fixing component 2 and the fan blade body 1 through the second connection hole 401. Next, pass the steel wire rope 403 through the fan blade body 1, with one end passing through the through hole 402. Then, use locking components to fix the end of the steel wire rope 403. Next, insert the fixing clip 404, which is fixed to the other end of the steel wire rope 403 with fasteners, into the opening of the fan blade body 1. Finally, use screws to connect the fan blade body 1 and the fixing clip 404 through the third connection hole 405. This reinforces the fan blade body 1 again. The steel wire rope 403 can support the fan blade body 1. Even if the fan blade body 1 falls, there is still traction, and it will not fall to the ground.

[0030] like Figure 1 and Figure 2 As shown, the inner wall of the end of the fastener 2 away from the fan blade body 1 has two mounting holes. This part of the fastener 2 is inserted into the inside of the equipment body, and then the connection can be achieved by passing bolts through the mounting holes.

[0031] like Figure 1 and Figure 2 As shown, two reinforcing strips 306 are installed on the top and bottom outer walls of the extended blade 301. The four reinforcing strips 306 cover the outside of the four clearance slots 305 respectively, which can enhance the overall strength of the extended blade 301 and prevent the clearance slots 305 from affecting the use of the fan blade.

[0032] like Figure 1 and Figure 2As shown, both the fan blade body 1 and the extended blade 301 are made of aluminum alloy, which is lightweight and has high strength. When aluminum alloy is exposed to air, a dense aluminum oxide film will quickly form on the surface, which is beneficial to improving the corrosion resistance of both.

[0033] This utility model provides a novel industrial fan blade with an internal safety structure, the specific working principle of which is as follows:

[0034] During installation, the extension blade 301 is fitted onto the outside of the fan blade body 1 from the end furthest from the limiting protrusion 304. Then, the cover plate is fixed to the opening of the extension blade 301 using bolts. Next, the total length of the extension blade 301 and the fan blade body 1 is adjusted as needed. Since the extension blade 301 is unrestricted at this point, it can slide freely along the fan blade body 1 until a suitable length is reached, aligning the extension blade 301 with the connecting hole 302 inside the fan blade body 1. Finally, the two connectors 303 are passed through the connecting hole 302 to connect them, preventing them from wobbling during use. Even if the connectors 303 loosen and detach, the limiting protrusion 304 will still act as a stop for the extension blade 301, preventing it from falling to the ground and causing injury. The reinforcing strip 306 is fixed to the outside of the extension blade 301 to enhance its strength. The overall strength is sufficient to prevent the clearance groove 305 from affecting the use of the fan blades. The fixing method can be glue bonding or drilling holes for alignment and connection with screws. Insert the fixing part 2 into the fan blade body 1, and then use bolts to pass through the connection hole 401 between the fixing part 2 and the fan blade body 1 to connect and fix them. Then, pass the steel wire rope 403 through the fan blade body 1, with one end passing through the through hole 402, and then use locking parts to fix the end of the steel wire rope 403. Next, insert the fixing clip 404, which is fixed to the other end of the steel wire rope 403 with fasteners, into the opening of the fan blade body 1. Finally, use screws to pass through the connection hole 405 to connect the fan blade body 1 and the fixing clip 404, thereby reinforcing the fan blade body 1 again. The steel wire rope 403 can support the fan blade body 1, and even if the fan blade body 1 falls, there is traction, so it will not fall to the ground.

[0035] 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 new type of industrial fan blade with internal safety structure, comprising a fan blade body (1), characterized in that: An extension assembly (3) is installed on the outside of the fan blade body (1). The extension assembly (3) includes an extension blade (301) that is slidably sleeved on the outside of the fan blade body (1). Several connecting holes (302) are opened inside the extension blade (301) at equal intervals. The connecting holes (302) are all vertically arranged and completely penetrate the extension blade (301). Two connecting holes (302) are also opened at one end of the fan blade body (1) near the extension blade (301). A connector (303) is installed in each of the two connecting holes (302) inside the fan blade body (1). Two clearance grooves (305) are opened on the top outer wall and the bottom outer wall of the extension blade (301). Four limiting protrusions (304) are provided at one end of the fan blade body (1) near the extension blade (301). The four limiting protrusions (304) are slidably inserted into the four clearance grooves (305).

2. The new industrial fan blade with internal safety structure as claimed in claim 1, wherein: A fixing member (2) is slidably inserted at one end of the fan blade body (1) away from the extended blade (301). A reinforcing component (4) is installed between the fan blade body (1) and the fixing member (2). The reinforcing component (4) includes several connecting holes (401) opened inside the fixing member (2). Several connecting holes (401) are also opened inside the fan blade body (1).

3. The new industrial fan blade with internal safety structure as claimed in claim 2, wherein: The top outer wall of the fixing member (2) has two parallel limiting grooves (406), and the top inner wall of the fan blade body (1) is provided with a limiting pin (407) that matches the limiting grooves (406).

4. The new industrial fan blade with internal safety structure as claimed in claim 2, wherein: The fixing member (2) has a through hole (402) at one end away from the fan blade body (1). A steel wire rope (403) is slidably inserted into the through hole (402). The other end of the steel wire rope (403) passes through the fan blade body (1) and extends outward. A fixing clip (404) is installed at the other end of the steel wire rope (403). The fixing clip (404) is slidably inserted into the opening of the fan blade body (1). A connecting hole three (405) is opened inside the insertion end of the fixing clip (404). A connecting hole three (405) is also opened inside the fan blade body (1).

5. The new industrial fan blade with internal safety structure as claimed in claim 2, wherein: The fixing member (2) has two mounting holes on the inner wall of the end away from the fan blade body (1).

6. The new industrial fan blade with internal safety structure as claimed in claim 1, wherein: The top and bottom outer walls of the extended blade (301) are each equipped with two reinforcing strips (306), and the four reinforcing strips (306) respectively cover the outside of the four clearance grooves (305).

7. The novel industrial fan blade with an internal safety structure according to claim 1, characterized in that: Both the fan blade body (1) and the extended blade (301) are made of aluminum alloy.

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