Air guide ring of axial flow fan

Abstract

The utility model discloses an axial flow fan wind guide ring which comprises a wind guide ring body, a fixed cross rod, a rotating rod, a movable ring, a cross supporting rod, a pull ring, a movable rod and a protective net, the movable rod is installed on the wind guide ring body in a sliding mode, the pull ring is installed at one end of the movable rod, and a spring column is installed between the pull ring and the wind guide ring body. A mounting piece is mounted on the moving rod, a hook is mounted on the mounting piece, a protective net cover keel rod is arranged on the protective net, a hanging ring is mounted at one end of the protective net cover keel rod, the hanging ring is hung on the hook, and a circle of hook is arranged around the circular outer wall of the air guide ring. The protective net cover keel rods are arranged around the protective net by a circle. The air guide ring can adapt to installation of protective nets of different sizes, the practicability of the air guide ring is improved, a plurality of bolts do not need to be installed and detached through a tool when the protective nets are disassembled and assembled, and the protective nets on the air guide ring can be disassembled and assembled more conveniently and rapidly.

Description

Technical Field

[0001] This utility model relates to the field of axial flow fans, specifically to an axial flow fan guide ring. Background Technology

[0002] A fan typically consists of blades and a guide ring. The guide ring is used to fix the blades and guides the air generated by the blades outward, playing a certain auxiliary role. Therefore, while fixing the blades, the guide ring also plays a certain auxiliary role in guiding the air. When an axial fan is running, the air usually flows from one side of the fan to the other along the direction of the fan's rotation axis. Axial fans are usually used in situations where the flow rate requirement is high and the pressure requirement is low, such as in general factories, warehouses, kitchens, and other places. Axial fans are generally fixed in the wall or on the roof to facilitate indoor ventilation.

[0003] The existing device has the following shortcomings when in use: In order to improve the safety of the fan, a protective net is usually installed at one end of the air guide ring with screws. The size of the protective net needs to match the port of the air guide ring. The air guide ring cannot accommodate the installation of protective nets of different sizes, which affects the practicality of the air guide ring. At the same time, the installation and removal of the protective net requires the use of tools to tighten and loosen multiple bolts, making the installation and removal of the protective net on the air guide ring inconvenient and not quick. Utility Model Content

[0004] The purpose of this invention is to provide an air guide ring for an axial flow fan to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an axial flow fan guide ring, comprising a guide ring, a fixed cross rod, a rotating rod, a movable ring, a cross support rod, a pull ring, a movable rod, and a protective net. The movable rod is slidably mounted on the guide ring, and a pull ring is mounted at one end of the movable rod. A spring post is installed between the pull ring and the guide ring. An mounting plate is mounted on the movable rod, and a hook is mounted on the mounting plate. A protective net cover keel rod is provided on the protective net, and a hanging ring is mounted at one end of the protective net cover keel rod. The hanging ring is hung on the hook, and the hook is arranged in a circle around the circular outer wall of the guide ring. The protective net cover keel rod is arranged in a circle around the protective net.

[0006] Using the above technical solution, when installing the protective net on the air guide ring, pressing down on the pull ring at one end of the moving rod moves the sliding rod on the air guide ring to the inner center point of the air guide ring. At this time, the spring column installed between the pull ring and the air guide ring is compressed. The movement of the moving rod causes the hook installed on the mounting plate to move. A protective net cover keel rod is set around the center point on the protective net. The hanging ring installed at one end of the protective net cover keel rod is hung on the lowered hook. Then, without pressing down the pull ring, the spring column returns to its elastic force, driving... Move the rod outward so that the hook pulls the hanging ring. Repeat the same operation to connect the hanging rings of the other protective netting keel rods to the hook, thereby stretching and fixing the protective netting. When disassembling, press down on the pull ring to remove the hanging ring from the hook. Adjust the position of the pull ring by the elasticity of the spring column to adapt to the installation of different sized protective netting. This allows the air guide ring to adapt to the installation of protective netting of different sizes, improving the practicality of the air guide ring. When disassembling and assembling the protective netting, there is no need to use tools to tighten and loosen multiple bolts, making the disassembly and assembly of the protective netting on the air guide ring more convenient and quick.

[0007] Preferably, a fixed cross rod is installed in the air guide ring, a stabilizing ring is installed at the center point where the two rods of the fixed cross rod meet, a ring of blades is installed on the rotating rod, and the rotating rod passes through the stabilizing ring and is slidably connected to the stabilizing ring.

[0008] By adopting the above technical solution, a fixed cross rod is installed in the air guide ring. The fixed cross rod consists of two rods that cross each other. One end of the two rods is fixed to the inner wall of the air guide ring. A stabilizing ring is installed at the intersection of the two rods. A rotating rod with a ring of blades is passed through the stabilizing ring and connected to the rotating shaft of the servo motor, so that the rotating rod rotates in the stabilizing ring, which improves the stability when the rotating rod drives the blades to rotate.

[0009] Preferably, an installation ring is installed in the air guide ring, the movable ring is connected to the installation ring by bolts, a cross support rod is installed on the movable ring, a stabilizing cover is installed at the center point where the two rods of the cross support rod intersect, a connecting groove is opened on one side of the stabilizing cover, and the connecting groove is rotatably connected to one end of the rotating rod.

[0010] Using the above technical solution, after the rotating rod with a ring of blades is passed through the stabilizing ring, the moving ring is slidably installed through one end of the air guide ring. The cross support rod installed on the moving ring is composed of two rods intersecting in a cross shape, and a stabilizing cover is installed at the center point of their intersection. One end of the rotating rod is inserted into the connecting groove opened on one side of the stabilizing cover. After one side of the moving ring is attached to one side of the mounting ring installed in the air guide ring, the moving ring is fixed by bolts to prevent the rotating rod from moving left and right, thereby improving the stability when the rotating rod drives the blades to rotate.

[0011] Preferably, a motor mounting bracket is installed in the air guide ring, a servo motor is installed on the motor mounting bracket, and a rotating shaft is installed at the output end of the servo motor.

[0012] Using the above technical solution, the servo motor is installed on the motor mounting bracket installed in the air guide ring. The rotating shaft installed at the output end of the servo motor is connected to the rotating rod to provide power for the rotation of the blades.

[0013] Preferably, a limit ring is installed on the rotating rod.

[0014] By adopting the above technical solution, the limiting ring installed on the rotating rod makes the limiting ring fit with the stabilizing ring when the rotating rod passes through the stabilizing ring, and together with the stabilizing cover, prevents the rotating rod from moving left or right.

[0015] Preferably, the air guide ring has a fixing hole.

[0016] By adopting the above technical solution, the air guide ring can be easily installed through the fixing holes opened on the air guide ring.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By pressing down the pull ring installed at one end of the moving rod, the moving rod slidably installed on the air guide ring moves to the inner center point of the air guide ring. At this time, the spring column installed between the pull ring and the air guide ring is compressed, causing the hook installed on the mounting plate to move. The hanging ring installed at one end of the protective net cover keel rod is hung on the lowered hook. Then, without pressing down the pull ring, the spring column returns to its elasticity, driving the moving rod to move outward, so that the hook pulls the hanging ring. The same operation is used to connect the hanging rings of the other protective net cover keel rods to the hooks, thereby stretching and fixing the protective net. The position of the pull ring is adjusted by the elasticity of the spring column to adapt to the installation of protective nets of different sizes, so that the air guide ring can adapt to the installation of protective nets of different sizes, improving the practicality of the air guide ring. When disassembling and assembling the protective net, no tools are needed to tighten and loosen multiple bolts, making the disassembly and assembly of the protective net on the air guide ring more convenient and quick.

[0019] 2. A fixed crossbar is installed in the air guide ring, and a stabilizing ring is installed at the intersection of the two bars. The rotating rod with a ring of blades is connected to the shaft of the servo motor through the stabilizing ring, so that the rotating rod rotates in the stabilizing ring. Then, the moving ring is slidably installed in through one end of the air guide ring. The crossbar support rod installed on the moving ring is composed of two bars crossing each other, so that one end of the rotating rod is inserted into the connecting groove opened on one side of the stabilizer cover. The moving ring is fixed to the mounting ring with bolts to prevent the rotating rod from moving left and right, thus improving the stability when the rotating rod drives the blades to rotate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the installation structure of the protective netting of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the blade structure of this utility model.

[0024] In the diagram: 1. Air guide ring; 2. Motor mounting bracket; 3. Servo motor; 4. Rotating shaft; 5. Fixed cross rod; 6. Stabilizing ring; 7. Rotating rod; 8. Limiting ring; 9. Blade; 10. Moving ring; 11. Cross support rod; 12. Mounting ring; 13. Bolt; 14. Stabilizing cover; 15. Connecting groove; 16. Pull ring; 17. Moving rod; 18. Spring column; 19. Mounting plate; 20. Hook; 21. Hanging ring; 22. Protective net cover keel rod; 23. Fixing hole; 24. Protective net. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figure 1-4This utility model provides an embodiment of an axial flow fan guide ring, comprising a guide ring 1, a fixed cross rod 5, a rotating rod 7, a movable ring 10, a cross support rod 11, a pull ring 16, a movable rod 17, and a protective net 24. The movable rod 17 is slidably mounted on the guide ring 1, and a pull ring 16 is mounted on one end of the movable rod 17. A spring post 18 is installed between the pull ring 16 and the guide ring 1. An mounting plate 19 is mounted on the movable rod 17, and a hook 20 is mounted on the mounting plate 19. A protective net cover keel rod 22 is provided on the protective net 24, and a hanging ring 21 is mounted on one end of the protective net cover keel rod 22. The hanging ring 21 is hung on the hook 20. The hook 20 is arranged in a circle around the circular outer wall of the guide ring 1, and the protective net cover keel rod 22 is arranged in a circle around the protective net 24. When installing the protective net 24 on the air guide ring 1, pressing down on the pull ring 16 at one end of the moving rod 17 moves the sliding rod 17 to the inner center point of the air guide ring 1. At this time, the spring column 18 installed between the pull ring 16 and the air guide ring 1 is compressed. The movement of the moving rod 17 causes the hook 20 installed on the mounting plate 19 to move. A protective net cover keel rod 22 is set around the center point on the protective net 24. The hanging ring 21 installed at one end of the protective net cover keel rod 22 is hung on the lowered hook 20. Then, without pressing down the pull ring 16, the spring column 18 returns to its elastic force, bringing... Move the movable rod 17 outward so that the hook 20 pulls the hanging ring 21. In the same way, connect the hanging rings 21 of the other protective netting keel rods 22 to the hook 20, thereby stretching and fixing the protective netting 24. When disassembling, press down the pull ring 16 to remove the hanging ring 21 from the hook 20. Adjust the position of the pull ring 16 by the elasticity of the spring column 18 to adapt to the installation of different sizes of protective netting, so that the air guide ring can adapt to the installation of different sizes of protective netting, improving the practicality of the air guide ring. When disassembling and assembling the protective netting, there is no need to use tools to tighten and loosen multiple bolts, making the disassembly and assembly of the protective netting on the air guide ring more convenient and quick.

[0027] A fixed crossbar 5 is installed in the air guide ring 1. A stabilizing ring 6 is installed at the center point where the two rods of the fixed crossbar 5 intersect. A ring of blades 9 is installed on the rotating rod 7. The rotating rod 7 passes through the stabilizing ring 6 and is slidably connected to the stabilizing ring 6. The fixed crossbar 5 installed in the air guide ring 1 consists of two rods that intersect in a cross shape. One end of the two rods is fixed to the inner wall of the air guide ring 1. A stabilizing ring 6 is installed at the intersection of the two rods. The rotating rod 7 with a ring of blades 9 is connected to the rotating shaft 4 of the servo motor 3 through the stabilizing ring 6, so that the rotating rod 7 rotates in the stabilizing ring 6, which improves the stability when the rotating rod 7 drives the blades 9 to rotate.

[0028] An installation ring 12 is installed in the air guide ring 1. The movable ring 10 is connected to the installation ring 12 by bolts 13. A cross-shaped support rod 11 is installed on the movable ring 10. A stabilizing cover 14 is installed at the center point where the two rods of the cross-shaped support rod 11 intersect. A connecting groove 15 is opened on one side of the stabilizing cover 14, and the connecting groove 15 is rotatably connected to one end of the rotating rod 7. After the rotating rod 7 with a ring of blades 9 is passed through the stabilizing ring 6, the movable ring 10 is slidably installed into the air guide ring 1. The cross-shaped support rod 11 installed on the movable ring 10 is composed of two rods that intersect in a cross shape. A stabilizing cover 14 is installed at the center point where the two rods intersect. One end of the rotating rod 7 is inserted into the connecting groove 15 opened on one side of the stabilizing cover 14. After one side of the movable ring 10 is in contact with one side of the installation ring 12 installed in the air guide ring 1, the movable ring 10 is fixed to the installation ring 12 by bolts 13 to prevent the rotating rod 7 from moving left and right, thus improving the stability when the rotating rod 7 drives the blades 9 to rotate.

[0029] A motor mounting bracket 2 is installed in the air guide ring 1, and a servo motor 3 is mounted on the motor mounting bracket 2. A rotating shaft 4 is installed at the output end of the servo motor 3. After the servo motor 3 is mounted on the motor mounting bracket 2 in the air guide ring 1, the rotating shaft 4 installed at the output end of the servo motor 3 is connected to the rotating rod 7 to provide power for the rotation of the blades 9.

[0030] A limiting ring 8 is installed on the rotating rod 7. The limiting ring 8 installed on the rotating rod 7 makes the limiting ring 8 fit with the stabilizing ring 6 when the rotating rod 7 passes through the stabilizing ring 6, and works with the stabilizing cover 14 to prevent the rotating rod 7 from moving left or right.

[0031] The air guide ring 1 has a fixing hole 23. The fixing hole 23 on the air guide ring 1 facilitates the installation of the air guide ring 1.

[0032] Working principle: When installing the protective net 24 on the air guide ring 1, pressing down on the pull ring 16 installed at one end of the moving rod 17 moves the sliding rod 17 on the air guide ring 1 to the inner center point of the air guide ring 1. At this time, the spring post 18 installed between the pull ring 16 and the air guide ring 1 is compressed. The movement of the moving rod 17 causes the hook 20 installed on the mounting plate 19 to move. A protective net cover keel rod 22 is set around the center point on the protective net 24. The hanging ring 21 installed at one end of the protective net cover keel rod 22 is hung on the downwardly moving rod 19. On hook 20, without pressing the pull ring 16, allow the spring column 18 to return to its elastic force, causing the moving rod 17 to move outward, so that hook 20 pulls the hanging ring 21. Repeat this process to connect the hanging rings 21 of the other protective netting keel rods 22 to hook 20, thereby stretching and fixing the protective netting 24. When disassembling, press down on the pull ring 16 to remove the hanging ring 21 from hook 20. Adjust the position of the pull ring 16 using the elastic force of the spring column 18 to accommodate the installation of different sized protective netting, allowing the air guide ring to adapt to the installation of different sized protective netting, improving... To enhance the practicality of the air guide ring, the installation and removal of the protective netting do not require tools or multiple bolts, making the installation and removal of the protective netting on the air guide ring more convenient and quick. A fixed crossbar 5 is installed in the air guide ring 1. The fixed crossbar 5 consists of two rods intersecting in a cross shape, with one end of each rod fixed to the inner wall of the air guide ring 1. A stabilizing ring 6 is installed at the intersection of the two rods. A rotating rod 7 with a ring of blades 9 is passed through the stabilizing ring 6 and connected to the rotating shaft 4 of the servo motor 3, causing the rotating rod 7 to rotate within the stabilizing ring 6. Then, the moving ring 1... The rotating rod 7 is slidably installed into the air guide ring 1 at one end. The cross support rod 11 installed on the moving ring 10 is composed of two rods that cross each other. A stabilizing cover 14 is installed at the center point of their intersection. One end of the rotating rod 7 is inserted into the connecting groove 15 opened on one side of the stabilizing cover 14. After one side of the moving ring 10 is attached to one side of the mounting ring 12 installed in the air guide ring 1, the moving ring 10 is fixed to the mounting ring 12 by bolts 13 to prevent the rotating rod 7 from moving left and right, thereby improving the stability when the rotating rod 7 drives the blade 9 to rotate.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An axial flow fan guard comprising a guard (1), a fixed crossbar (5), a rotating bar (7), a moving ring (10), a crossbar support bar (11), a pull ring (16), a moving bar (17) and a protective screen (24), characterised in that: The air guide ring (1) is slidably installed with a moving rod (17), one end of the moving rod (17) is installed with a pull ring (16), the pull ring (16) and the air guide ring (1) are installed with a spring column (18), the moving rod (17) is installed with a mounting sheet (19), the mounting sheet (19) is installed with a hook (20), the protective net (24) is provided with a protective net cover keel rod (22), one end of the protective net cover keel rod (22) is installed with a hanging ring (21), the hanging ring (21) is hung on the hook (20), the hook (20) is provided with a ring around the circular outer wall of the air guide ring (1), and the protective net cover keel rod (22) is provided with a ring around the protective net (24).

2. The axial flow fan wind guide of claim 1, wherein: The air guide ring (1) is installed with a fixed cross frame rod (5), the center point of the intersection of the two rods of the fixed cross frame rod (5) is installed with a stable ring (6), the rotating rod (7) is annularly installed with a ring of blades (9), and the rotating rod (7) penetrates through the stable ring (6) and is slidably connected with the stable ring (6).

3. The axial flow fan wind guide of claim 1, wherein: The air guide ring (1) is installed with a mounting ring (12), the moving ring (10) is connected with the mounting ring (12) through bolts (13), the moving ring (10) is installed with a cross frame support rod (11), the center point of the intersection of the two rods of the cross frame support rod (11) is installed with a stable cover (14), a connecting groove (15) is formed in one side of the stable cover (14), and the connecting groove (15) is rotatably connected with one end of the rotating rod (7).

4. The axial fan wind guide of claim 1, wherein: The air guide ring (1) is installed with a motor mounting frame (2), the motor mounting frame (2) is installed with a servo motor (3), and the output end of the servo motor (3) is installed with a rotating shaft (4).

5. The axial fan according to claim 1, wherein: The rotating rod (7) is installed with a limiting ring (8).

6. The axial fan according to claim 1, wherein: The air guide ring (1) is provided with a fixing hole (23).

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