A silencer high-speed centrifugal fan

Abstract

This invention discloses a noise-reducing high-speed centrifugal fan, comprising a base with an internal cavity, a centrifugal fan body, a movable plate fixedly mounted on the bottom of the centrifugal fan body, the movable plate being slidably connected to the cavity of the base, a dustproof screen at the air inlet of the centrifugal fan body, and a mounting plate fixedly mounted at the air outlet of the centrifugal fan body, with a noise-reducing pipe on the other side of the mounting plate. This invention utilizes a wave-shaped noise-reducing groove inside the connecting pipe. The wave shape design creates tiny airflow channels within the noise-reducing groove, which effectively and evenly distributes the airflow, facilitating air movement. This airflow expands the energy dissipation range, improving the noise reduction effect. Furthermore, by embedding a noise-reducing plate inside the air outlet shroud, the noise reduction effect is further enhanced, helping to protect the surrounding environment and human health, and improving the performance and reliability of the centrifugal fan body.

Description

Technical Field

[0001] This invention relates to the field of centrifugal fan technology, and in particular to a noise-reducing high-speed centrifugal fan. Background Technology

[0002] Noise reduction and noise reduction have always been important technical challenges in existing centrifugal fan technology. Centrifugal fans generate a lot of noise during operation, which not only pollutes the surrounding environment but may also threaten the hearing health of operators.

[0003] Traditional centrifugal fan noise reduction devices are relatively simple in structure, usually relying only on adding sound insulation materials or simple sound-absorbing structures to reduce noise, and the noise reduction effect is limited.

[0004] Secondly, traditional centrifugal fan noise reduction devices are inconvenient to install and disassemble. Due to their complex structure and numerous connecting parts, disassembly and cleaning are time-consuming and labor-intensive, which is not conducive to the maintenance and upkeep of the equipment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a noise-reducing high-speed centrifugal fan.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] This invention provides a noise-reducing high-speed centrifugal fan, comprising:

[0008] The base has an internal cavity for receiving;

[0009] The centrifugal fan body has a movable plate fixedly installed at its bottom, which is slidably connected to the receiving cavity of the base. A dustproof screen is installed at the air inlet of the centrifugal fan body, and a mounting plate is fixedly installed at the air outlet. A silencer pipe is installed on the other side of the mounting plate.

[0010] The silencing fitting includes a connecting pipe, an air outlet hood, a silencing groove, and a silencing plate. The air outlet hood is fixedly installed on one side of the connecting pipe. A slot is opened on one side of the mounting plate. The connecting pipe is inserted and removed into the slot. Fixing components are provided on both sides of the mounting plate. Two fixing holes are opened on both sides of the mounting plate. Two fixing holes are opened on both sides of the connecting pipe. Threaded holes are opened between the two fixing holes and the two fixing holes on the same side.

[0011] A shock-absorbing component is disposed in the receiving cavity of the base, and the shock-absorbing component includes a guide rod, an arc-shaped spring, a slider, and a spring;

[0012] The fixing assembly includes a connecting plate, fixing rods, and bolts. Two fixing rods are fixedly installed on one side of the connecting plate, and the bolts are provided with internal threads of the connecting plate.

[0013] The fixing rod is used in conjunction with the fixing hole one and the fixing hole two, the bolt is used in conjunction with the threaded hole, and both the fixing hole one and the fixing hole two are connected to the slot.

[0014] As a preferred embodiment of the present invention, the sound-absorbing grooves are formed along the circumference of the interior of the connecting pipe, the sound-absorbing grooves are of a wave-shaped structure, and the sound-absorbing plates are embedded along the circumference of the interior of the air outlet hood.

[0015] As a preferred embodiment of the present invention, the sliders are fixedly installed on both sides of the bottom of the arc-shaped spring piece, and the bottom wall of the receiving cavity of the base is provided with sliding grooves on both sides. The guide rods are fixedly installed inside the sliding grooves, the sliders are slidably disposed inside the sliding grooves and slidably connected with the guide rods, and the top of the arc-shaped spring piece is fixedly connected to the bottom of the movable plate.

[0016] As a preferred embodiment of the present invention, the guide rod is covered with a spring, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the slider.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. This invention incorporates a sound-absorbing pipe fitting with a wave-shaped sound-absorbing groove inside the connecting pipe. The wave shape creates tiny airflow channels within the sound-absorbing groove, which effectively and evenly distributes the airflow, facilitating air movement. This airflow expands the energy dissipation range and enhances the sound-absorbing effect. Furthermore, a sound-absorbing plate is embedded inside the air outlet hood, further improving the sound-absorbing effect. With the cooperation of vibration damping components, the centrifugal fan body is dampened, achieving noise reduction and silencing during operation. This device provides multiple levels of noise reduction and silencing for the centrifugal fan body, helping to protect the surrounding environment and human health, and improving the performance and reliability of the centrifugal fan body.

[0019] 2. Through the cooperation of the fixing components, fixing hole one, and fixing hole two, the present invention allows for convenient disassembly and installation of the connecting pipe and the air outlet cover, thereby facilitating the cleaning and maintenance of the connecting pipe and the air outlet cover, and ensuring the noise reduction effect of the sound-absorbing groove inside the connecting pipe and the sound-absorbing plate inside the air outlet cover. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a perspective view of the present invention;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] Figure 4 This is the invention Figure 3 Enlarged view of the structure at point A in the middle;

[0025] Figure 5 This is a perspective view of the sound-absorbing pipe fitting of the present invention;

[0026] Figure 6 This is an anatomical diagram of the mounting plate of the present invention;

[0027] In the diagram: 1. Base; 2. Centrifugal fan body; 3. Movable plate; 4. Mounting plate; 5. Silencing fittings; 501. Connecting pipe; 502. Air outlet hood; 503. Silencing groove; 504. Silencing plate; 6. Slot; 7. Fixing hole one; 8. Fixing hole two; 9. Vibration damping component; 901. Guide rod; 902. Arc-shaped spring; 903. Slider; 904. Spring; 10. Fixing component; 1001. Connecting plate; 1002. Fixing rod; 1003. Bolt. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] In the attached diagram, all identical reference numerals refer to the same components.

[0030] like Figure 1-6 As shown, the present invention provides a noise-reducing high-speed centrifugal fan, comprising:

[0031] Base 1, the interior of base 1 has a cavity for receiving;

[0032] The centrifugal fan body 2 has a movable plate 3 fixedly installed at its bottom. The movable plate 3 is slidably connected to the receiving cavity of the base 1. A dustproof net is installed at the air inlet of the centrifugal fan body 2, and an installation plate 4 is fixedly installed at the air outlet of the centrifugal fan body 2. A silencer pipe 5 is installed on the other side of the installation plate 4.

[0033] The silencer fitting 5 includes a connecting pipe 501, an air outlet hood 502, a silencer groove 503, and a silencer plate 504. The air outlet hood 502 is fixedly installed on one side of the connecting pipe 501. A slot 6 is opened on one side of the mounting plate 4. The connecting pipe 501 is inserted and removed into the slot 6. Fixing components 10 are provided on both sides of the mounting plate 4. Two fixing holes 7 are opened on both sides of the mounting plate 4. Two fixing holes 8 are opened on both sides of the connecting pipe 501. Threaded holes are opened between the two fixing holes 7 and the two fixing holes 8 on the same side.

[0034] The shock absorption component 9 is disposed in the receiving cavity of the base 1. The shock absorption component 9 includes a guide rod 901, an arc-shaped spring 902, a slider 903, and a spring 904.

[0035] By incorporating a wave-shaped silencing groove 503 inside the connecting pipe 501, the wave shape creates tiny airflow channels within the groove, effectively and evenly distributing airflow and facilitating air movement. This airflow expands the energy dissipation range, enhancing the silencing effect. Furthermore, the silencing effect is further improved by embedding a silencing plate 504 inside the outlet hood 502. During operation, the centrifugal fan body 2 vibrates, and this vibration is transmitted to the arc-shaped spring 902. The arc-shaped spring 902 provides initial damping for the centrifugal fan body 2. As the spring 902 vibrates, it causes the slider 903 to slide outside the guide rod 901. The spring 904 further buffers and reduces the vibration, improving the stability of the centrifugal fan body 2 during operation. This multi-stage noise reduction and silencing device helps protect the surrounding environment and human health, improving the performance and reliability of the centrifugal fan body 2.

[0036] The connecting pipe 501 is inserted into the slot 6 of the mounting plate 4. Then, through the cooperation of the fixing rod 1002, fixing hole 7, and fixing hole 8, the connecting pipe 501 can be initially fixed. Then, the connecting plate 1001 is fixed by the bolt 1003, thus completing the installation of the connecting pipe 501. This installation method allows for convenient disassembly and installation, and facilitates the cleaning and maintenance of the connecting pipe 501 and the air outlet hood 502. It can ensure the noise reduction and sound attenuation effect of the sound-absorbing groove 503 inside the connecting pipe 501 and the sound-absorbing plate 504 inside the air outlet hood 502.

[0037] Furthermore, the connecting pipe 501 has a sound-absorbing groove 503 along its circumference, the sound-absorbing groove 503 has a wave-shaped structure, and the air outlet hood 502 has a sound-absorbing plate 504 embedded along its circumference.

[0038] Furthermore, the fixing component 10 includes a connecting plate 1001, fixing rods 1002, and bolts 1003. Two fixing rods 1002 are fixedly installed on one side of the connecting plate 1001, and bolts 1003 are provided in the internal threads of the connecting plate 1001.

[0039] Furthermore, the fixing rod 1002 is used in conjunction with fixing hole 7 and fixing hole 8, the bolt 1003 is used in conjunction with the threaded hole, and fixing hole 7 and fixing hole 8 are both connected to the slot 6.

[0040] Furthermore, sliders 903 are fixedly installed on both sides of the bottom of the arc-shaped spring 902, and grooves are opened on both sides of the bottom wall of the receiving cavity of the base 1. Guide rods 901 are fixedly installed inside the grooves. The sliders 903 are slidably disposed inside the grooves and are slidably connected with the guide rods 901. The top of the arc-shaped spring 902 is fixedly connected to the bottom of the movable plate 3.

[0041] Furthermore, the guide rod 901 is covered with a spring 904, one end of the spring 904 is fixedly connected to a slider 903, and the other end of the spring 904 is fixedly connected to a slider 903.

[0042] Working Principle: When the centrifugal fan body 2 is working, a wave-shaped silencing groove 503 is set inside the connecting pipe 501. The wave shape design forms tiny airflow channels inside the silencing groove 503, which can better and more evenly distribute the airflow and facilitate airflow. The airflow can expand the energy dissipation range and improve the silencing effect. The silencing effect is further improved by embedding a silencing plate 504 inside the air outlet hood 502. When the centrifugal fan body 2 is working, it will generate vibration. The vibration force will be transmitted to the arc-shaped spring 902. The arc-shaped spring 902 will initially dampen the vibration of the centrifugal fan body 2. When the arc-shaped spring 902 vibrates, it will drive the slider 903 to slide outside the guide rod 901. At this time, the spring 904 can further buffer and dampen the vibration force, which helps to improve the silencing effect of the centrifugal fan body 2. The device ensures stability during operation and reduces noise during the operation of the centrifugal fan body 2. This allows for multiple noise reduction and silencing effects on the centrifugal fan body 2, helping to protect the surrounding environment and personnel health, and improving the performance and reliability of the centrifugal fan body 2. The connecting pipe 501 is inserted and removed into the slot 6 of the mounting plate 4. Then, through the cooperation of the fixing rod 1002, fixing hole 1 7, and fixing hole 2 8, the connecting pipe 501 can be initially fixed. Then, the connecting plate 1001 is fixed with bolts 1003, thus completing the installation of the connecting pipe 501. This installation method allows for convenient disassembly and installation, and facilitates the cleaning and maintenance of the connecting pipe 501 and the air outlet hood 502. It can ensure the noise reduction and silencing effect of the sound-absorbing groove 503 inside the connecting pipe 501 and the sound-absorbing plate 504 inside the air outlet hood 502.

[0043] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A noise-reducing high-speed centrifugal fan, characterized in that, include: The base (1) has an internal cavity for receiving; Centrifugal fan body (2), with a movable plate (3) fixedly installed at the bottom of the centrifugal fan body (2), the movable plate (3) being slidably connected to the accommodating cavity of the base (1), a dustproof net being provided at the air inlet of the centrifugal fan body (2), and an installation plate (4) being fixedly installed at the air outlet of the centrifugal fan body (2), with a sound-absorbing pipe fitting (5) provided on the other side of the installation plate (4). The silencing fitting (5) includes a connecting pipe (501), an air outlet hood (502), a silencing groove (503), and a silencing plate (504). The air outlet hood (502) is fixedly installed on one side of the connecting pipe (501). A slot (6) is provided on one side of the mounting plate (4). The connecting pipe (501) is inserted into the slot (6). Fixing components (10) are provided on both sides of the mounting plate (4). Two fixing holes (7) are provided on both sides of the mounting plate (4). Two fixing holes (8) are provided on both sides of the connecting pipe (501). Threaded holes are provided between the two fixing holes (7) and the two fixing holes (8) on the same side. Shock-absorbing component (9), the shock-absorbing component (9) is disposed in the receiving cavity of the base (1), the shock-absorbing component (9) includes a guide rod (901), an arc-shaped spring (902), a slider (903), and a spring (904). The fixing component (10) includes a connecting plate (1001), a fixing rod (1002), and a bolt (1003). Two fixing rods (1002) are fixedly installed on one side of the connecting plate (1001), and the bolts (1003) are provided in the internal threads of the connecting plate (1001). The fixing rod (1002) is used in conjunction with the fixing hole one (7) and the fixing hole two (8), the bolt (1003) is used in conjunction with the threaded hole, and the fixing hole one (7) and the fixing hole two (8) are both connected to the slot (6).

2. The silencer high-speed centrifugal fan according to claim 1, characterized in that, The connecting pipe (501) has a sound-absorbing groove (503) along its circumference. The sound-absorbing groove (503) has a wave-shaped structure. The air outlet hood (502) has a sound-absorbing plate (504) embedded along its circumference.

3. The silencer high-speed centrifugal fan according to claim 1, characterized in that, The bottom sides of the arc-shaped spring (902) are fixedly installed with the slider (903). The bottom walls of the accommodating cavity of the base (1) are provided with sliding grooves on both sides. The guide rod (901) is fixedly installed inside the sliding groove. The slider (903) is slidably disposed inside the sliding groove and slidably connected with the guide rod (901). The top of the arc-shaped spring (902) is fixedly connected to the bottom of the movable plate (3).

4. A noise-reducing high-speed centrifugal fan according to claim 3, characterized in that, The guide rod (901) is covered with the spring (904) on the outside. One end of the spring (904) is fixedly connected to the slider (903), and the other end of the spring (904) is fixedly connected to the slider (903).

Images