High-safety industrial fans

By employing tensioning components and connectors in the design of industrial fans, the problem of fan blade detachment has been solved, improving the safety of equipment and personnel and achieving a highly safe industrial fan.

CN224432856UActive Publication Date: 2026-06-30ZHEJIANG XIANFENG ELECTROMECHANICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XIANFENG ELECTROMECHANICAL EQUIP CO LTD
Filing Date
2025-08-14
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing industrial fans pose a risk of blade detachment during high-speed rotation, leading to equipment damage and personnel safety threats, and there is a lack of effective protective measures.

Method used

The fan blades are tightened to the fixed column using a tensioning assembly. The fasteners and tensioning assembly prevent the fan blades from loosening. Combined with the connector, it is connected to the ceiling or suspended ceiling to prevent the mounting base from falling and improve safety.

Benefits of technology

It effectively prevents the fan blades and mounting base from falling off, improving the safety of industrial fans and avoiding personal injury and equipment damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a high-safety industrial fan, comprising a rotating base, a mounting base rotatably mounted on the rotating base, and a plurality of fan blades mounted on the mounting base. The fan blades are mounted on the mounting base by fasteners. A fixing post is provided at the bottom of the mounting base. The application also includes a tensioning assembly for tightening the fixing post and the fan blades. This application effectively prevents the fan blades from falling to the ground and causing personal injury, thus improving the safety of the industrial fan. Furthermore, the use of turnbuckles and tensioning ropes further prevents the fan from falling to the ground.
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Description

Technical Field

[0001] This application relates to the field of industrial fan technology, and in particular to a highly safe industrial fan. Background Technology

[0002] Industrial fans are highly efficient at moving large volumes of air, generating massive airflow and creating a dynamic, circulating airflow field within a space. With the growing awareness of energy conservation and emission reduction and the increasing prevalence of industrial fans, more and more factories, workshops, and logistics warehouses are using them for ventilation, cooling, dehumidification, dust removal, and odor elimination in large spaces. However, as fans rotate at high speeds, the risk of blade detachment is becoming increasingly apparent. This can not only damage equipment but also threaten the lives of employees, causing significant losses to businesses. Utility Model Content

[0003] To improve the safety of industrial fans, this application provides a highly safe industrial fan.

[0004] This application provides a high-safety industrial fan, which adopts the following technical solution:

[0005] A high-safety industrial fan includes a rotating base, a mounting base rotatably mounted on the rotating base, and a plurality of fan blades mounted on the mounting base. The fan blades are mounted on the mounting base by a fixing member. The mounting base has a fixing post at its bottom and also includes a tensioning assembly for tensioning the fixing post and the fan blades.

[0006] By adopting the above technical solution, when the industrial fan needs to be assembled, the fan blades are fixed to the mounting base by fasteners, and a tensioning component is installed. The tensioning component tightens the fan blades to the fixing column. When the fasteners become loose or damaged, the tensioning component tightens the fan blades to prevent them from falling to the ground and causing personal injury, thus improving the safety of the industrial fan.

[0007] Optionally, the tensioning assembly includes a tensioning member, and the side wall of the fixed column is provided with a plurality of fixing blocks, each fixing block corresponding to a fan blade. The fixing block is provided with a through hole, and the fan blade is provided with a fastening hole. The tensioning member passes through the through hole and the fastening hole.

[0008] By adopting the above technical solution, the through hole opened on the fixing block and the snap-fit ​​hole opened on the fan blade facilitate the installation and tightening of the tensioning component.

[0009] Optionally, the tensioning element is a steel wire rope, and the tensioning assembly further includes a rope clamp that clamps the steel wire rope.

[0010] By adopting the above technical solution, the wire rope is easy to tighten, and after tightening, it is clamped by a rope clamp.

[0011] Optionally, the mounting base is provided with a number of pull rings around its top circumference, and also includes a number of connectors, one end of which is connected to the pull rings and the other end of which is connected to the ceiling or suspended ceiling.

[0012] By adopting the above technical solution, industrial fans are often quite heavy, and the mounting base may become loose after prolonged use, posing a risk of falling off. The connecting parts use pull rings to prevent the mounting base from falling to the ground, thus improving the safety of the industrial fan.

[0013] Optionally, the connector is an open-body turnbuckle, with one end of the open-body turnbuckle sleeved on the pull ring and the other end connected to a tension rope, which is used to tighten and fix the mounting base.

[0014] By adopting the above technical solution, the mounting base is connected to the ceiling or suspended ceiling respectively by the open-body turnbuckle and the tension rope. The open-body turnbuckle is easy to install, which makes it easy to fix the mounting base and prevents the mounting base from falling off.

[0015] Optionally, the fixing component is a fixing bolt, and the mounting base has a threaded hole for the fixing bolt to be threadedly connected. The fixing bolt passes through the fan blade and is threadedly connected to the threaded hole.

[0016] By adopting the above technical solution, the fan blades are fixed to the mounting base with fixing bolts, and the fan blades are installed firmly.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. The tensioning component tightens the fan blades to prevent them from falling and hitting the ground if they become loose, thus improving the safety of industrial fans.

[0019] 2. Tighten the fan blades with a steel wire rope and clamp the steel wire rope to prevent the fan blades from falling off;

[0020] 3. One end of the open-body turnbuckle is fitted onto the pull ring, and the other end is connected to the ceiling or suspended ceiling via a tension rope. The tension rope is used to tighten and fix the mounting base to prevent it from falling off. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a highly safe industrial fan according to an embodiment.

[0022] Figure 2 This is a structural schematic diagram of the high-safety industrial fan from another perspective of the embodiment.

[0023] Figure 3 yes Figure 2 A magnified view of a portion at point A.

[0024] Explanation of reference numerals in the attached drawings: 1. Rotating seat; 2. Mounting seat; 3. Fan blade; 31. Fan blade body; 32. Connecting block; 4. Fixing component; 41. Fixing bolt; 5. Tensioning assembly; 51. Tensioning component; 511. Wire rope; 52. Rope clamp; 521. Clamping seat; 522. Tensioning ring; 61. Fixing post; 62. Fixing block; 63. Through hole; 64. Tensioning block; 65. Snap-fit ​​hole; 66. Threaded hole; 7. Pull ring; 8. Connecting component; 81. Open-body turnbuckle. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] This application discloses a highly safe industrial fan. (Refer to...) Figure 1 , Figure 2 The high-safety industrial fan includes a rotating base 1, a mounting base 2 rotatably connected to the rotating base 1, and several fan blades 3 mounted on the mounting base 2. The rotating base 1 is used for connecting and fixing the motor. The fan blades 3 include a fan blade body 31 and a connecting block 32. The connecting block 32 is inserted into the fan blade body 31, a screw passes through the fan blade body 31 and the connecting block 32, and a nut is threaded onto the screw. The nuts fix the fan blade body 31 and the connecting block 32.

[0027] Reference Figure 1 , Figure 2 , Figure 3 The fan blade 3 is fixed to the mounting base 2 by a fastener 4. The fastener 4 is a fixing bolt 41, and at least two fixing bolts 41 are provided. The mounting base 2 has a threaded hole 66 for the fixing bolt 41 to be threaded. The fixing bolt 41 passes through the fan blade 3 and is threaded into the threaded hole 66.

[0028] Reference Figure 1 , Figure 2 , Figure 3 The mounting base 2 has a fixed post 61 at its bottom. The high-safety industrial fan also includes a tensioning assembly 5, which is used to tighten the fixed post 61 and the fan blade 3. The tensioning assembly 5 includes a tensioning element 51, which is a steel wire rope 511. Several fixing blocks 62 are fixed to the side wall of the fixed post 61, and each fixing block 62 corresponds to one of the fan blades 3. The fixing blocks 62 have through holes 63. Tensioning blocks 64 are fixed to the fan blades 3, and the tensioning blocks 64 have fastening holes 65. The tensioning element 51 passes through the through holes 63 and the fastening holes 65. The tensioning assembly 5 also includes a rope clamp 52, which clamps the steel wire rope 511. The rope clamp 52 includes a clamping seat 521 and a tensioning ring 522 that is slidably connected to the clamping seat 521. The tension of the tensioning ring 522 is adjusted by the tensioning thread. The clamping seat 521 is fixed on the connecting block 32, and one end of the tensioning ring 522 passes through the connecting block 32.

[0029] Reference Figure 1 The mounting base 2 has several pull rings 7 fixed around its top circumference. The high-safety industrial fan also includes several connectors 8. One end of the connector 8 is connected to the pull ring 7, and the other end is connected to the ceiling or suspended ceiling. The connector 8 is an open-body turnbuckle 81. One end of the open-body turnbuckle 81 is sleeved on the pull ring 7, and the other end is connected to a tension rope (not shown in the figure). The mounting base 2 is tightened and fixed by the tension rope.

[0030] The implementation principle of a high-safety industrial fan according to this application embodiment is as follows: When the industrial fan needs to be assembled, the fan blade 3 is fixed to the mounting base 2 by fixing bolts 41, and a steel wire rope 511 is installed. The steel wire rope 511 passes through the through hole 63 and the fastening hole 65. After the steel wire rope 511 is tightened, it is clamped by the rope clamp 52. When the fixing part 4 is loose or damaged, the tensioning component 5 tightens the fan blade 3 to prevent the fan blade 3 from falling and hitting the ground, causing personal injury, thus improving the safety of the industrial fan. A pull ring 7 is fixed circumferentially on the top of the mounting base 2. One end of the open-body turnbuckle 81 is sleeved on the pull ring 7, and the other end is connected to a tensioning rope. Once the tensioning rope is far away from the open-body turnbuckle 81 and connected to the ceiling, the open-body turnbuckle 81 and the tensioning rope prevent the mounting base 2 from falling to the ground, further improving the safety of the industrial fan.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-safety industrial fan, comprising a rotating base (1), a mounting base (2) rotatably disposed on the rotating base (1), and a plurality of fan blades (3) disposed on the mounting base (2), characterized in that: The fan blade (3) is mounted on the mounting base (2) by a fastener (4). The mounting base (2) has a fixing post (61) at the bottom and also includes a tensioning assembly (5). The tensioning assembly (5) is used to tighten the fixing post (61) and the fan blade (3).

2. The high-safety industrial fan according to claim 1, characterized in that: The tensioning assembly (5) includes a tensioning member (51). The side wall of the fixing post (61) is provided with a plurality of fixing blocks (62). The fixing blocks (62) correspond one-to-one with the fan blades (3). The fixing blocks (62) are provided with through holes (63). The fan blades (3) are provided with fastening holes (65). The tensioning member (51) passes through the through holes (63) and the fastening holes (65).

3. The high-safety industrial fan according to claim 2, characterized in that: The tensioning member (51) is a steel wire rope (511), and the tensioning assembly (5) also includes a rope clamp (52), which clamps the steel wire rope (511).

4. The high-safety industrial fan according to claim 1, characterized in that: The mounting base (2) is provided with several pull rings (7) around its top circumference, and also includes several connectors (8). One end of the connector (8) is connected to the pull ring (7), and the other end is connected to the ceiling or ceiling.

5. The high-safety industrial fan according to claim 4, characterized in that: The connector (8) is an open-body turnbuckle (81). One end of the open-body turnbuckle (81) is sleeved on the pull ring (7), and the other end is connected to the tension rope. The tension rope is used to tighten and fix the mounting base (2).

6. The high-safety industrial fan according to claim 1, characterized in that: The fixing component (4) is a fixing bolt (41). The mounting base (2) has a threaded hole (66) for the fixing bolt (41) to be threaded. The fixing bolt (41) passes through the fan blade (3) and is threaded into the threaded hole (66).