CN221683245U - Noise reduction type glass fiber reinforced plastic fan - Google Patents

Abstract

The utility model discloses a noise-reducing glass fiber reinforced plastic fan, which belongs to the technical field of ventilation equipment, and comprises a shell and a frame, wherein the shell is fixedly arranged on the frame; an air inlet and an air outlet are provided on the shell, a docking soft ring is fixedly arranged on the air inlet, and a docking flange is fixedly arranged on the docking soft ring at a position away from the shell; a rotating motor is fixedly arranged on the frame, a connecting device is rotatably provided on the shell, the connecting device is fixedly arranged on the output shaft of the rotating motor, a fan blade is fixedly arranged on the connecting device, a sawtooth-shaped notch is provided at a position of the fan blade away from the output shaft of the rotating motor, and a plurality of sawtooth-shaped notches are provided; a plurality of fan blades are provided, and retaining rings are fixedly arranged at positions of the plurality of fan blades away from the connecting device; the cross section of the shell is arc-shaped, and the utility model has the advantage of reducing noise.

Description

A noise-reducing glass fiber reinforced plastic fan

Technical Field

The utility model relates to the technical field of ventilation equipment, in particular to a noise reduction type glass fiber reinforced plastic fan.

Background Art

FRP fans are widely used in various industries due to their corrosion resistance, anti-aging and high efficiency and energy saving. Especially in the fields of environmental protection, construction, industry and agriculture, they are ideal for ventilation and dust removal.

There are significant differences in design and function between existing FRP fans and iron fans. FRP is a composite material composed of glass fiber and organic polymer materials. This unique combination makes FRP have significant characteristics such as light weight, high strength and corrosion resistance. Compared with traditional iron fans, FRP fans are more adaptable to various complex environmental conditions. Whether it is humid, corrosive gas or high temperature environment, it can maintain stable operating performance.

However, the existing FRP fans have the defect of vibrating between components and causing high noise during use due to the unreasonable structural design.

Based on this, the utility model designs a noise reduction type glass fiber reinforced plastic fan to solve the above problems.

Utility Model Content

The utility model aims to provide a noise-reducing glass fiber reinforced plastic fan to solve the above-mentioned technical problems.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a shell and a frame, the shell is fixedly arranged on the frame; the shell is provided with an air inlet and an air outlet, the air inlet is fixedly provided with a docking soft ring, and a docking flange is fixedly provided on the docking soft ring at a position away from the shell; a rotating motor is fixedly arranged on the frame, a connecting device is rotatably arranged on the shell, the connecting device is fixedly arranged on the output shaft of the rotating motor, a fan blade is fixedly arranged on the connecting device, a sawtooth-shaped notch is provided at a position of the fan blade away from the output shaft of the rotating motor, and a plurality of sawtooth-shaped notches are provided; a plurality of fan blades are provided, and retaining rings are fixedly provided at positions of the plurality of fan blades away from the connecting device; the cross-section of the shell is arc-shaped.

Preferably, a connecting bolt is fixedly provided on the shell, a through hole is opened on the frame, and the connecting bolt passes through the through hole and is threadedly connected with a fixing nut.

Preferably, a shock-absorbing rubber ring is sleeved on the connecting bolt, and the shock-absorbing rubber ring is tightly pressed between the shell and the frame.

Preferably, a mounting platform is fixedly provided on the frame, a shock-absorbing pad is fixedly provided on the mounting platform, and the rotating motor is placed on the shock-absorbing pad; a mounting hole is provided on the rotating motor, and a plurality of mounting holes are provided, and a clearance hole corresponding to the mounting hole is provided on the mounting platform, and mounting bolts are placed in the mounting holes, and the mounting bolts pass through the mounting hole and the clearance hole in sequence and are threadedly connected with mounting nuts, and the mounting nuts are pressed tightly against the mounting platform.

Preferably, the connecting device includes a connecting rod and a connecting plate, the connecting plate is fixedly arranged on the connecting rod, the connecting rod is rotatably arranged on the shell, the fan blades are fixedly arranged on the connecting plate, and an elastic coupling is connected between the connecting rod and the output shaft of the rotating motor.

In summary, the present application has the following beneficial technical effects: by modifying the fan blades so that they have a serrated notch, the noise generated during operation is smaller, and at the same time, the shell is designed to be an arc shape so that the airflow in the shell flows more smoothly, thereby reducing the wind noise generated during the operation of the fan; a shock-absorbing device is added between the moving device and the fixed parts to block the vibration generated during the operation of the moving device from being transmitted to the fixed parts, thereby blocking the cause of the noise, so that the fan has the advantage of reducing noise.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic diagram of the housing structure of this embodiment;

FIG2 is a schematic diagram of the installation of the elastic coupling of this embodiment;

FIG3 is a schematic diagram of the fan blade structure of this embodiment;

FIG. 4 is a schematic diagram of the installation of the fixing nut in this embodiment.

In the accompanying drawings, the components represented by the reference numerals are listed as follows:

1. Shell; 2. Frame; 3. Connecting bolts; 5. Fixing nuts; 6. Shock-absorbing rubber ring; 7. Air inlet; 8. Air outlet; 9. Docking soft ring; 10. Docking flange; 11. Mounting table; 12. Shock-absorbing pad; 13. Rotating motor; 14. Mounting bolts; 15. Mounting nuts; 16. Connecting device; 17. Connecting rod; 18. Connecting plate; 19. Elastic coupling; 20. Fan blades; 21. Sawtooth notch; 22. Retaining ring.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The present application is further described in detail below in conjunction with Figures 1-4.

A noise reduction glass fiber reinforced plastic fan comprises a shell 1 and a frame 2.

The shell 1 is set on the frame 2, and a connecting bolt 3 is fixedly arranged on the shell 1. A through hole (not shown in the figure) is opened on the frame 2. The connecting bolt 3 passes through the through hole and is threadedly connected with a fixing nut 5; a shock-absorbing rubber ring 6 is sleeved on the connecting bolt 3, and the shock-absorbing rubber ring 6 is tightly pressed between the shell 1 and the frame 2.

The shell 1 is provided with an air inlet 7 and an air outlet 8, and the cross section of the shell 1 is in an arc shape; a docking soft ring 9 is fixedly provided on the air inlet 7, and a docking flange 10 is fixedly provided on the docking soft ring 9 at a position away from the shell 1.

A mounting platform 11 is fixedly provided on the frame 2, a shock-absorbing pad 12 is fixedly provided on the mounting platform 11, a rotating motor 13 is placed on the shock-absorbing pad 12; a mounting hole (not shown in the figure) is provided on the rotating motor 13, and four mounting holes are provided; a clearance hole (not shown in the figure) corresponding to the mounting hole is provided on the mounting platform 11, a mounting bolt 14 is placed in the mounting hole, the mounting bolt 14 passes through the mounting hole and the clearance hole in turn, and is threadedly connected with a mounting nut 15, and the mounting nut 15 is pressed tightly against the mounting platform 11.

A connecting device 16 is rotatably provided on the housing 1, and the connecting device 16 is fixedly provided on the output shaft of the rotating motor 13; the connecting device 16 includes a connecting rod 17 and a connecting plate 18, and the connecting plate 18 is fixedly provided on the connecting rod 17, and the connecting rod 17 is rotatably provided on the housing 1, and an elastic coupling 19 is connected between the connecting rod 17 and the output shaft of the rotating motor 13.

A fan blade 20 is fixedly provided on the connecting plate 18 , and a sawtooth notch 21 is provided at a position of the fan blade 20 away from the output shaft of the rotating motor 13 , and there are multiple sawtooth notches 21 ; there are multiple fan blades 20 , and retaining rings 22 are fixedly provided at positions of the multiple fan blades 20 away from the connecting plate 18 .

The implementation principle of this embodiment is as follows: when installing the fan, connect the air outlet pipe of the equipment to the docking flange 10; then, when it is needed to be used, drive the rotating motor 13 to work, the output shaft of the rotating motor 13 drives the elastic coupling 19 to rotate, the elastic coupling 19 drives the connecting rod 17 to rotate, the connecting rod 17 drives the connecting plate 18 to rotate, and the connecting plate 18 drives the fan blades 20 to rotate, so that the airflow generates centrifugal force and moves in the direction away from the fan blades 20, forms a vortex in the housing 1 and then flows out from the air outlet 8, and the intake air flows out from the air inlet 7; during the operation of the fan, the source of noise mainly comes from the wind noise generated by the flowing air and the noise between the moving parts and the fixed parts due to The sound caused by vibration is reduced by setting the serrated notch 21 of the fan blade 20 and arranging the cross section in an arc shape, so that the airflow in the shell 1 flows more smoothly, thereby reducing the generation of wind noise; the shock-absorbing rubber ring 6 arranged between the shell 1 and the frame 2 reduces the vibration generated by the shell 1 during operation and is transmitted to the frame 2, thereby reducing the vibration and noise of the frame 2. At the same time, a shock-absorbing pad 12 is added between the rotating motor 13 and the frame 2, so that the vibration generated by the rotating motor 13 during operation is absorbed by the shock-absorbing pad 12, thereby reducing the vibration generated by the rotating motor 13. The situation of being transmitted to the frame 2 and generating noise is reduced.

By modifying the fan blade 20 so that the fan blade 20 has a sawtooth notch 21, the noise generated during operation is small. At the same time, the shell 1 is designed to be arc-shaped so that the airflow in the shell 1 flows more smoothly, reducing the wind noise generated during the operation of the fan. A shock-absorbing device is added between the moving device and the fixed parts to block the vibration generated during the operation of the moving device from being transmitted to the fixed parts, thereby blocking the cause of the noise, so that the fan has the advantage of reducing noise.

In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A noise reduction type fiberglass reinforced plastic fan, characterized in that: it comprises a housing (1) and a frame (2), wherein the housing (1) is fixedly arranged on the frame (2); an air inlet (7) and an air outlet (8) are provided on the housing (1), a docking soft ring (9) is fixedly arranged on the air inlet (7), and a docking flange (10) is fixedly arranged on the docking soft ring (9) at a position away from the housing (1); a rotating motor (13) is fixedly arranged on the frame (2), and a connecting device (16) is rotatably arranged on the housing (1) ), the connecting device (16) is fixedly arranged on the output shaft of the rotating motor (13), a fan blade (20) is fixedly arranged on the connecting device (16), a sawtooth-shaped notch (21) is provided at a position of the fan blade (20) away from the output shaft of the rotating motor (13), and a plurality of the sawtooth-shaped notches (21) are provided; a plurality of the fan blades (20) are provided, and a retaining ring (22) is fixedly arranged on a plurality of the fan blades (20) at a position away from the connecting device (16); the cross section of the housing (1) is in the shape of an arc. 2. A noise-reducing fiberglass fan according to claim 1, characterized in that: a connecting bolt (3) is fixedly provided on the shell (1), a through hole is opened on the frame (2), and the connecting bolt (3) passes through the through hole and is threadedly connected with a fixing nut (5). 3. A noise-reducing fiberglass fan according to claim 2, characterized in that: a shock-absorbing rubber ring (6) is sleeved on the connecting bolt (3), and the shock-absorbing rubber ring (6) is tightly pressed between the housing (1) and the frame (2). 4. A noise-reducing fiberglass fan according to claim 1, characterized in that: a mounting platform (11) is fixedly arranged on the frame (2), a shock-absorbing pad (12) is fixedly arranged on the mounting platform (11), and the rotating motor (13) is placed on the shock-absorbing pad (12); a mounting hole is opened on the rotating motor (13), and a plurality of mounting holes are opened, and a clearance hole corresponding to the mounting hole is opened on the mounting platform (11), and a mounting bolt (14) is placed in the mounting hole, and the mounting bolt (14) passes through the mounting hole and the clearance hole in sequence and is threadedly connected with a mounting nut (15), and the mounting nut (15) is tightly pressed against the mounting platform (11). 5. A noise reduction fiberglass fan according to claim 1, characterized in that: the connecting device (16) includes a connecting rod (17) and a connecting plate (18), the connecting plate (18) is fixedly arranged on the connecting rod (17), the connecting rod (17) is rotatably arranged on the housing (1), the fan blade (20) is fixedly arranged on the connecting plate (18), and an elastic coupling (19) is connected between the connecting rod (17) and the output shaft of the rotating motor (13).