CN218563959U

CN218563959U - Glass steel centrifugal fan of low noise

Info

Publication number: CN218563959U
Application number: CN202222921030.9U
Authority: CN
Inventors: 张水华; 钟发胜; 吴小丽
Original assignee: Suzhou Dingyu Energy Efficient Equipment Co Ltd
Current assignee: Suzhou Dingyu Energy Efficient Equipment Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-03-03
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a glass steel centrifugal fan of low noise, including casing, wind channel and connecting pipe, the wind channel is one side that the side U font set up at shells inner wall, the wind channel has the space apart from other three inner wall of casing, the top and the connecting pipe of wind channel one side are fixed mutually and are linked together, the bottom fixedly connected with abatvoix in wind channel, a plurality of leaks the sound hole has been seted up at the top in wind channel. The utility model provides a glass steel centrifugal fan of low noise has casing and wind channel, the casing is the parcel formula and places whole fan in inside, the noise that the fan produced will concentrate on the inside of casing can not be the diffusion formula and outwards send, the wind channel can be introduced the wind of fan air outlet department through air inlet cover cooperation connecting pipe, cite the powerful wind-force of fan air-out department and accomplish the circulation in the wind channel, the noise can see through the abatvoix and leak the sound hole and lead to air-out pipe department cooperation hush pipe in entering into the wind channel by powerful wind-force and accomplish amortization.

Description

Glass steel centrifugal fan of low noise

Technical Field

The utility model relates to a centrifugal fan technical field specifically is a glass steel centrifugal fan of low noise.

Background

The glass fiber reinforced plastic fan is made of glass fiber reinforced plastic, the appearance and the size of the fan are completely the same as those of a steel fan, and only the shell and the impeller are made of glass fiber reinforced plastic, so that the glass fiber reinforced plastic fan is corrosion-resistant, acid-resistant and alkali-resistant and belongs to an anticorrosive fan.

The glass fiber reinforced plastic fan can convey corrosive gas containing acid, alkali and chemical property, and dust and hard particulate matters contained in the fan are less than 150 mg per cubic meter.

The glass steel centrifugal fan can produce tremble in addition the motor opens and can produce great noise when the fan blade is high-speed rotatory and stronger wind pressure passes through organism inside in the operation, the noise that the machine produced is greater than 80 decibels and is influential to the health, the noise that is greater than 110 decibels produces direct injury to the human body, the main harm of noise to the human body is damage auditory system, when noise intensity exceeded 100 decibels, can cause hearing damage. Mild hearing impairment is mainly manifested as mild tinnitus, and if the mild hearing impairment is further developed, speech hearing can be influenced to a certain extent, the centrifugal fan is mostly used in public environments such as factories and workshops, and long-time noisy noise can harm the physical health of workers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a glass steel centrifugal fan of low noise to the problem that produces great noise during the centrifugal fan operation of proposing in the solution above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a glass steel centrifugal fan of low noise, includes casing, wind channel and connecting pipe, the wind channel is the one side of the U font setting at shells inner wall, there is the space wind channel apart from the other three inner wall of casing, the top and the connecting pipe of wind channel one side are fixed mutually and are communicate, the bottom fixedly connected with sound-permeable board in wind channel, a plurality of leaks the sound hole has been seted up at the top in wind channel, the top in wind channel just is located one side fixedly connected with guide vane that leaks the sound hole, the guide vane is the bent plate that has certain radian.

Furthermore, the bottom of the connecting pipe is fixedly communicated with a corrugated pipe, one side of the corrugated pipe is fixedly communicated with an air inlet cover, the air inlet cover penetrates through the shell and extends into the shell, the top of one side of the shell is fixedly connected with a support, and one side of the support is matched with the corrugated pipe.

Further, the bottom fixedly connected with fan of sound transmission board, the front side and the rear side of wind channel one side bottom all are fixed the intercommunication and have a tuber pipe, the bottom fixedly connected with inserted block of casing one side, the draw-in groove has been seted up at the top of inserted block, the front of casing articulates through the hinge has the cap, the positive top of cap is provided with the transparent plate.

Further, one side of going out the tuber pipe is provided with the hush pipe, the hush pipe is the hollow body that a plurality of hush hole was seted up on the surface, one side inside the hush pipe is provided with the snap ring, the internal diameter of snap ring is the same with the external diameter size who goes out the tuber pipe, snap ring and play tuber pipe looks adaptation, the equal fixedly connected with a plurality of hush piece in top and the bottom of hush pipe inner wall.

Furthermore, a fixed seat is fixedly connected to one side of the top of the silencing tube, a slot is formed in one side of the fixed seat and matched with the insertion block, a fixed rod is fixedly connected to one side of the top of the fixed seat, and a movable plate is connected to the fixed rod in a sliding mode.

Further, be provided with the spring on the dead lever, the bottom of spring and the top of movable plate looks fixed connection, one side fixedly connected with ejector pad at movable plate top, one side fixedly connected with fixture block of movable plate bottom, the fixture block runs through the fixing base and extends to the inside of fixing base, fixture block and draw-in groove looks adaptation.

Compared with the prior art, the beneficial effects of the utility model are that: this glass steel centrifugal fan of low noise is reasonable, has following advantage:

(1) The casing is a wrapping type and the whole fan is placed inside, noise generated by the fan can be concentrated inside the casing and cannot be emitted outwards in a diffusion mode, an air duct arranged inside the casing can lead in wind at an air outlet of the fan through an air inlet cover matched with a connecting pipe, strong wind power at the air outlet of the fan is quoted to complete circulation in the air duct, the noise in the casing can enter the air duct through a sound-permeable plate and a sound leakage hole, the noise is guided to the air outlet pipe by the strong wind power and is matched with a sound-deadening pipe to complete sound-deadening treatment, compared with the mode that the sound-insulating plate is directly covered on the fan, the air duct is longer and more durable in use by means of wind and sound-deadening, the later maintenance is simple and convenient, the sound-insulating plate can cause sound rebound, and the sound-insulating plate needs to be replaced in time after being used for a long time, or the sound-insulating effect is reduced;

(2) The hush pipe that goes out tuber pipe department setting is detachable, hush pipe cooperation wind channel reduces the noise reduction and discharges, hush pipe dismantles convenient and fast only need upwards promote the ejector pad and can accomplish the operation, wind channel can carry out the dust clearance through opening the cap when wind channel and hush pipe use inside to have dust influence noise conduction and noise cancelling treatment for a long time, hush pipe then can directly dismantle to get off and wash inside dust with the clear water, dry after wasing and install again and just can continue to use, hush pipe can clear up repeatedly and use.

Drawings

Fig. 1 is a schematic view of the external structure of the housing of the present invention;

fig. 2 is a schematic view of the internal structure of the housing of the present invention;

FIG. 3 is a schematic view of the wind-guiding plate of the present invention;

FIG. 4 is a schematic view of the structure of the muffler of the present invention;

FIG. 5 is an enlarged view of a portion of the section A shown in FIG. 4 according to the present invention;

fig. 6 is a schematic view of the internal structure of the silencing tube of the present invention.

In the figure: 1. a connecting pipe; 2. a bellows; 3. a housing; 4. a fixed seat; 5. a sound-deadening tube; 6. a transparent plate; 7. a fan; 8. a shell cover; 9. a support; 10. an air inlet cover; 11. a wind guide sheet; 12. a sound transmission plate; 13. an air duct; 14. a sound leakage hole; 15. fixing the rod; 16. pushing a block; 17. a clamping block; 18. inserting a block; 19. Moving the plate; 20. a snap ring; 21. a silencing sheet; 22. an air outlet pipe; 23. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

example 1:

the utility model provides a glass steel centrifugal fan of low noise, which comprises a housin 3, wind channel 13 and connecting pipe 1, wind channel 13 is the one side of the U font setting at casing 3 inner wall of side, there is the space apart from casing 3 other three inner walls in wind channel 13, the top and the connecting pipe 1 of wind channel 13 one side are fixed intercommunication mutually, the bottom fixedly connected with sound-permeable board 12 of wind channel 13, a plurality of sound leakage hole 14 has been seted up at the top of wind channel 13, the top of wind channel 13 just is located one side fixedly connected with guide vane 11 of sound leakage hole 14, guide vane 11 is the bent plate that has certain radian, guide vane 11 in this embodiment can guide the trend of wind and become the place of sound leakage hole 14 and can not make wind outwards reveal from sound leakage hole 14 and be provided with the space of certain surplus between guide vane 11 and the guide vane 11 and can not influence the propagation wind-force cooperation hush pipe 5 that the guide vane 13 can guide and utilize fan 7 self to produce and accomplish sound insulation processing, casing 3 is the parcel formula of making an uproar and falls and places whole fan 7 inside, the noise that will concentrate on the inside of casing 3 can not be the diffusion formula outwards send out.

Bellows 2 is fixed to the bottom of connecting pipe 1, and bellows 2's one side is fixed to be communicated and has an air inlet cover 10, and air inlet cover 10 runs through casing 3 and extends to the inside of casing 3, the top fixedly connected with support 9 of casing 3 one side, one side and bellows 2 looks adaptation of support 9, and bellows 2 in this embodiment receives can stretch out and draw back the extension behind the pulling force and conveniently uses the position that the user adjusted air inlet cover 10.

The bottom fixedly connected with fan 7 of sound transmission board 12, the front side and the rear side of wind channel 13 one side bottom all are fixed the intercommunication and have a tuber pipe 22, the bottom fixedly connected with inserted block 18 of casing 3 one side, the draw-in groove has been seted up at the top of inserted block 18, the front of casing 3 articulates through the hinge has cap 8, the positive top of cap 8 is provided with transparent plate 6, transparent plate 6 can help the user to look over the fan 7 function condition and the wind channel 13 in the dust pile up the condition.

After the fan 7 is opened, strong wind force from the air outlet blows towards the air inlet cover 10, wind entering the air inlet cover 10 enters the air duct 13 along the corrugated pipe 2 and the connecting pipe 1, because the wind influenced by the wind guide sheet 11 blows along the direction guided by the wind guide sheet 11 to form an internal circulation in the air duct 13 and finally is discharged outwards from the air outlet pipe 22, noise generated after the fan 7 is opened enters the air duct 13 through the sound transmitting plate 12 and the sound leakage holes 14, the strong wind controls sound to move and moves out from the air outlet pipe 22 to the silencing pipe 5, because the sound is outwards propagated by longitudinal vibration of the air, when the wind blows, the direction of vibration particles can be changed by the wind, the direction of the sound is changed, and the noise reaching the silencing pipe 5 is eliminated through the silencing sheet 21 to complete noise reduction.

Example 2:

one side of air outlet pipe 22 is provided with hush pipe 5, hush pipe 5 is the hollow body that a plurality of hush hole was seted up on the surface, hush pipe 5 inside one side is provided with snap ring 20, snap ring 20's internal diameter is the same with the external diameter size of air outlet pipe 22, snap ring 20 and air outlet pipe 22 looks adaptation, snap ring 20 is sealed form after cooperating with air outlet pipe 22 together, the wind that goes out air outlet pipe 22 exhaust only can move forward and can not reveal out from following snap ring 20, the equal fixedly connected with a plurality of hush piece 21 in top and the bottom of hush pipe 5 inner wall, hush pipe 5 in this embodiment is located air outlet pipe 22 department and can carries out noise reduction with the noise that wind channel 13 transported out and hush pipe 5 can dismantle fast, dismantle the washing when making things convenient for inside more dust that piles up in later stage influences the hush, hush pipe 5 can be used repeatedly for many times for the metal material, life is longer.

One side fixedly connected with fixing base 4 at the top of hush pipe 5, the slot has been seted up to one side of fixing base 4, slot and inserted block 18 looks adaptation, one side fixedly connected with dead lever 15 at the top of fixing base 4, sliding connection has movable plate 19 on dead lever 15.

The fixing rod 15 is provided with a spring 23, the bottom of the spring 23 is fixedly connected with the top of the moving plate 19, one side of the top of the moving plate 19 is fixedly connected with the push block 16, one side of the bottom of the moving plate 19 is fixedly connected with the clamping block 17, the clamping block 17 penetrates through the fixing seat 4 and extends into the fixing seat 4, and the clamping block 17 is matched with the clamping groove.

Before the fan 7 is used, the height and the position of the air inlet cover 10 need to be adjusted, the air inlet of the air inlet cover 10 is required to be horizontally aligned with the air outlet of the fan 7 and located at a position slightly above the air outlet, after the adjustment is finished, a user needs to install the silencing pipe 5 on the air outlet pipe 22, during installation, the silencing pipe 5 is aligned with the air outlet pipe 22, the fixed seat 4 at the top of the air outlet pipe 22 is aligned with the insertion block 18, the silencing pipe 5 is moved after being inserted into the air outlet pipe 22, the insertion block 18 enters the fixed seat 4, the user pushes the push block 16 upwards after the insertion block 18 enters the fixed seat 4, the push block 16 drives the movable plate 19 to move upwards, the movable plate 19 drives the clamping block 17 to move upwards and presses the spring 23, after the silencing pipe 5 moves to the extreme position, the insertion block 18 also completely enters the fixed seat 4, at the top of the insertion block 18 is located right below the clamping block 17, the user loosens the push block 16, the spring 23 can drive the clamping block 17 to move downwards through the resilience of the clamping block 17 through the clamping block, and the silencing pipe 5 can be clamped into the air outlet pipe 5 after the air outlet pipe 5 is opened, and the air outlet pipe 7 can be normally installed, and the air can be used

The working principle is as follows: when in use, a user needs to unlock the shell cover 8 and pull the shell cover 8, the shell cover 8 is rotated and opened by taking the hinge as a circle center after being stressed, the shell cover 8 is exposed out of the placing cavity in the shell 3 after being opened, then the fan 7 is placed in the cavity and then the shell cover 8 is closed, the user needs to adjust the height and the position of the air inlet cover 10 after placing the fan 7, the air inlet of the air inlet cover 10 is horizontally aligned with the air outlet of the fan 7 and is positioned at a position slightly above the air outlet, the corrugated pipe 2 can be detached from the bracket 9 for telescopic adjustment when the adjustment angle is larger, the corrugated pipe 2 is clamped on the bracket 9 again after being adjusted to be fixed, finally the muffling pipe 5 needs to be installed on the air outlet pipe 22, the muffling pipe 5 is aligned with the air outlet pipe 22 and the fixed seat 4 at the top is aligned with the insertion block 18 when the muffling pipe 5 is aligned with the insertion block, the muffling pipe 5 is moved after being aligned with the insertion block, the muffling pipe 5 is inserted on the air outlet pipe 22, the inserting block 18 enters the fixed seat 4, when the inserting block 18 enters the fixed seat 4, a user pushes the pushing block 16 upwards, the pushing block 16 drives the moving plate 19 to move upwards, the moving plate 19 drives the clamping block 17 to move upwards and simultaneously extrude the spring 23, when the silencing tube 5 moves to the extreme position, the inserting block 18 also completely enters the fixed seat 4, at the moment, the clamping groove at the top of the inserting block 18 is just positioned below the clamping block 17, the user loosens the pushing block 16, the spring 23 drives the clamping block 17 to move downwards to the initial position through self resilience and then is clamped into the clamping groove to complete the installation of the silencing tube 5, the user can open the fan 7 to normally use after the silencing tube 5 is installed, strong wind power from the air outlet after the fan 7 is opened can blow towards the air inlet cover 10, and wind entering the air inlet cover 10 can enter the air duct 13 along the corrugated pipe 2 and the connecting pipe 1, because the wind influenced by the wind guide plate 11 blows along the direction guided by the wind guide plate 11 to form an internal circulation in the air duct 13 and finally is discharged out of the air outlet pipe 22, the noise generated after the fan 7 is started can enter the air duct 13 through the sound transmission plate 12 and the sound leakage holes 14, strong wind can control sound to move and move out of the air outlet pipe 22 to the silencing pipe 5, because the sound is outwards propagated by the longitudinal vibration of the air, when the wind blows, the direction of the vibration particles can be changed by the wind, the direction of the sound is changed, and the noise reaching the silencing pipe 5 is eliminated through the silencing plate 21 to finish the noise reduction treatment.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a glass steel centrifugal fan of low noise, includes casing (3), wind channel (13) and connecting pipe (1), wind channel (13) are one side that the U font of inclining set up at casing (3) inner wall, wind channel (13) have the space apart from casing (3) other three inner wall, the top and connecting pipe (1) of wind channel (13) one side are fixed intercommunication, its characterized in that mutually: the air duct is characterized in that the bottom of the air duct (13) is fixedly connected with a sound transmission plate (12), the top of the air duct (13) is provided with a plurality of sound leakage holes (14), the top of the air duct (13) is fixedly connected with an air guide sheet (11) on one side of the sound leakage holes (14), and the air guide sheet (11) is a bent plate with a certain radian.

2. The low noise centrifugal blower of claim 1, wherein: the fixed intercommunication in bottom of connecting pipe (1) has bellows (2), the fixed intercommunication in one side of bellows (2) has air inlet cover (10), air inlet cover (10) run through casing (3) and extend to the inside of casing (3), top fixedly connected with support (9) of casing (3) one side, one side and bellows (2) looks adaptation of support (9).

3. The low noise centrifugal blower of glass fiber reinforced plastic of claim 1, wherein: the utility model discloses a ventilating duct, including the bottom fixedly connected with fan (7) of sound-transmitting board (12), the front side and the rear side of wind channel (13) one side bottom are all fixed the intercommunication and are had a tuber pipe (22), bottom fixedly connected with inserted block (18) of casing (3) one side, the draw-in groove has been seted up at the top of inserted block (18), the front of casing (3) articulates through the hinge has cap (8), the positive top of cap (8) is provided with transparent plate (6).

4. A low noise centrifugal blower of glass fiber reinforced plastic as defined in claim 3, wherein: one side of going out tuber pipe (22) is provided with hush pipe (5), hush pipe (5) are the hollow body that a plurality of hush hole was seted up on the surface, hush pipe (5) inside one side is provided with snap ring (20), the internal diameter of snap ring (20) is the same with the external diameter size who goes out tuber pipe (22), snap ring (20) and play tuber pipe (22) looks adaptation, the equal fixedly connected with a plurality of hush piece (21) in top and the bottom of hush pipe (5) inner wall.

5. The low noise centrifugal blower of glass fiber reinforced plastic of claim 4, wherein: the novel silencer is characterized in that a fixing seat (4) is fixedly connected to one side of the top of the silencing pipe (5), a slot is formed in one side of the fixing seat (4), the slot is matched with the insertion block (18), a fixing rod (15) is fixedly connected to one side of the top of the fixing seat (4), and a movable plate (19) is connected to the fixing rod (15) in a sliding mode.

6. The low noise centrifugal blower of claim 5, wherein: be provided with spring (23) on dead lever (15), the bottom of spring (23) and the top looks fixed connection of movable plate (19), one side fixedly connected with ejector pad (16) at movable plate (19) top, one side fixedly connected with fixture block (17) of movable plate (19) bottom, fixture block (17) run through fixing base (4) and extend to the inside of fixing base (4), fixture block (17) and draw-in groove looks adaptation.