CN212959147U

CN212959147U - Inhale sound and fall type of making an uproar centrifugal fan

Info

Publication number: CN212959147U
Application number: CN202021634020.1U
Authority: CN
Inventors: 高永林
Original assignee: Shandong Jinwa Special Fan Co ltd
Current assignee: Shandong Jinwa Special Fan Co ltd
Priority date: 2020-08-08
Filing date: 2020-08-08
Publication date: 2021-04-13
Anticipated expiration: 2030-08-08

Abstract

The utility model discloses a inhale sound and fall type of making an uproar centrifugal fan, including fixing bolt and base, the base upper surface is provided with the casing, casing outer wall both sides all are provided with the connecting plate, the casing upper surface is provided with sealed lid, fixing bolt passes screw hole on sealed lid and the casing and is connected with sealed lid and casing meshing, shells inner wall bottom both sides all are provided with connecting rod B, the connecting rod other end is through pivot and connecting rod A swing joint, shells inner wall bottom both sides all are provided with the elasticity spring, and the elasticity spring other end is connected with the backup pad, the connecting rod A other end is provided with the backup pad, the backup pad upper surface is provided with inhales the sound cotton. The utility model discloses a setting of a series of structures, the convenience provides the protection of shock attenuation and buffering to the fan, can effectually absorb and reduce the noise that fan work produced simultaneously.

Description

Inhale sound and fall type of making an uproar centrifugal fan

Technical Field

The utility model relates to a centrifugal fan technical field specifically is a inhale sound and fall type of making an uproar centrifugal fan.

Background

The smoke exhaust fan is a machine capable of rapidly exhausting peculiar smell, high temperature and oil smoke gas, and is characterized by good high temperature resistance and high efficiency, the types of the fans comprise a centrifugal fan, an axial flow fan, a centrifugal fan and an axial flow fan, and the fan is suitable for small and large machines according to the space size and the arrangement condition of a smoke exhaust hood.

At present, the centrifugal fire-fighting smoke exhaust fan on the market is in practical application, because the traditional fire-fighting smoke exhaust fan mostly discharges smoke through the motor drive, only provides one moreover and falls the district of making an uproar, can not realize making an uproar that falls in the segmentation, and the noise reduction effect is not good, easily produces vibrations at the operation in-process, can reduce fire-fighting smoke exhaust fan working life when vibrations are too strong, consequently, needs carry out certain improvement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a inhale sound and fall type of making an uproar centrifugal fan to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a sound-absorbing and noise-reducing centrifugal fan comprises a fixing bolt and a base, wherein a shell is arranged on the upper surface of the base, connecting plates are arranged on two sides of the outer wall of the shell, a sealing cover is arranged on the upper surface of the shell, the fixing bolt penetrates through threaded holes in the sealing cover and the shell to be meshed with the sealing cover and the shell, connecting rods B are arranged on two sides of the bottom of the inner wall of the shell, the other ends of the connecting rods B are movably connected with the connecting rods A through rotating shafts, elastic springs are arranged on two sides of the bottom of the inner wall of the shell, the other ends of the elastic springs are connected with a supporting plate, the other end of the connecting rod A is provided with a supporting plate, sound-absorbing cotton is arranged on the upper surface of the supporting plate, a driving motor is arranged on the upper surface of the sound-absorbing, the improved air conditioner is characterized in that an air outlet pipe is arranged on one side of the inner wall of the shell, an air inlet pipe is arranged on the other side of the inner wall of the shell, filter screens are arranged at one ends of the air outlet pipe and the air inlet pipe, clamping plates are arranged on two sides of the lower surface of the sealing cover, and clamping grooves are formed in two sides of the upper surface of the.

Preferably, one end of the air outlet pipe is provided with a connecting flange, and the connecting flange is provided with a mounting hole.

Preferably, the sound-absorbing cotton is connected with the shell through bonding, and the sound-absorbing cotton is positioned on the inner wall of the shell.

Preferably, the sealing cover is in clearance connection with the clamping groove in the upper surface of the shell through the clamping plate on the lower surface.

Preferably, handles are arranged on two sides of the upper surface of the sealing cover.

Preferably, the two sides of the lower surface of the base are provided with four supporting columns, and the four supporting columns are respectively positioned at four corners of the bottom of the base.

Compared with the prior art, the beneficial effects of the utility model are that: through the setting of elasticity spring, elasticity spring can provide the protection of shock attenuation and buffering to the driving motor during operation in the backup pad, avoids the vibrations that driving motor used the production for a long time to cause the internals to damage, and elasticity spring reduces the noise that produces when driving motor shakes simultaneously to driving motor's shock attenuation, can effectually absorb and reduce the inside noise of casing through inhaling the sound cotton. The utility model discloses a setting of a series of structures, the convenience provides the protection of shock attenuation and buffering to the fan, can effectually absorb and reduce the noise that fan work produced simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a perspective view of the present invention.

Fig. 4 is a schematic structural diagram of the housing of the present invention.

Fig. 5 is a schematic structural view of the sealing cover of the present invention.

Fig. 6 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a handle; 2. fixing the bolt; 3. a housing; 4. sound-absorbing cotton; 5. a filter screen; 6. an air inlet pipe; 7. a base; 8. a coupling; 9. an air outlet pipe; 10. a support pillar; 11. a connecting plate; 12. mounting holes; 13. a connecting shaft; 14. a connecting flange; 15. a blade; 16. a drive motor; 17. a sealing cover; 18. a card slot; 19. clamping a plate; 20. a connecting rod A; 21. a support plate; 22. a connecting rod B; 23. the spring is tightened or loosened.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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, in an embodiment of the present invention, a noise absorption and reduction centrifugal fan includes a fixing bolt 2 and a base 7, a casing 3 is disposed on the upper surface of the base 7, connecting plates 11 are disposed on both sides of the outer wall of the casing 3, a sealing cover 17 is disposed on the upper surface of the casing 3, the fixing bolt 2 passes through the sealing cover 17 and the threaded hole of the casing 3 to engage with the sealing cover 17 and the casing 3, a connecting rod B22 is disposed on both sides of the bottom of the inner wall of the casing 3, the other end of the connecting rod is movably connected with a connecting rod a20 through a rotating shaft, a tension spring 23 is disposed on both sides of the bottom of the inner wall of the casing 3, the other end of the tension spring 23 is connected with a supporting plate 21, a supporting plate 21 is disposed on the other end of the connecting rod a20, a, the other end of the connecting shaft 13 is provided with blades 15, the fixing bolt 2 passes through threaded holes on the connecting plate 11 and the base 7 to be meshed with the connecting plate 11 and the base 7, one side of the inner wall of the shell 3 is provided with an air outlet pipe 9, the other side of the inner wall of the shell 3 is provided with an air inlet pipe 6, one ends of the air outlet pipe 9 and the air inlet pipe 6 are both provided with filter screens 5, both sides of the lower surface of the sealing cover 17 are both provided with clamping plates 19, both sides of the upper surface of the shell 3 are both provided with clamping grooves 18, one end of the air outlet pipe 9 is provided with a connecting flange 14, the connecting flange 14 is provided with a mounting hole 12, the sound-absorbing cotton 4 is connected with the shell 3 through bonding, the sound-absorbing cotton 4 is positioned on the inner wall of the shell 3, the sealing cover 17 is in, and four support columns 10 are located four corners of base 7 bottom respectively, through the setting of elasticity spring 23, elasticity spring 23 can provide the protection of shock attenuation and buffering to driving motor 16 during operation in the backup pad 21, avoid driving motor 16 to use the vibrations that produce for a long time and cause the internals to damage, the noise that produces when elasticity spring 23 reduces driving motor 16 vibrations simultaneously to driving motor 16's shock attenuation, can effectually absorb and reduce the inside noise of casing 3 through inhaling sound cotton 4.

The utility model discloses a theory of operation is: through the setting of elasticity spring 23, elasticity spring 23 provides the protection of shock attenuation and buffering to the driving motor 16 during operation in backup pad 21, avoids the vibrations that driving motor 16 used the production for a long time to cause the internals to damage, and the noise that produces when elasticity spring 23 reduces driving motor 16 vibrations simultaneously to driving motor 16's shock attenuation absorbs and reduces through inhaling the effectual noise to casing 3 insides of sound cotton 4.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 inhale sound and fall type of making an uproar centrifugal fan, includes fixing bolt (2) and base (7), its characterized in that, base (7) upper surface is provided with casing (3), casing (3) outer wall both sides all are provided with connecting plate (11), casing (3) upper surface is provided with sealed lid (17), fixing bolt (2) pass sealed lid (17) and screw hole on casing (3) and sealed lid (17) and casing (3) meshing connection, casing (3) inner wall bottom both sides all are provided with connecting rod B (22), the connecting rod other end is through pivot and connecting rod A (20) swing joint, casing (3) inner wall bottom both sides all are provided with elasticity spring (23), and the elasticity spring (23) other end is connected with backup pad (21), the connecting rod A (20) other end is provided with backup pad (21), the upper surface of the supporting plate (21) is provided with sound-absorbing cotton (4), the upper surface of the sound-absorbing cotton (4) is provided with a driving motor (16), the output shaft of the driving motor (16) is connected with the connecting shaft (13) through a coupling (8), the other end of the connecting shaft (13) is provided with a blade (15), the fixing bolt (2) passes through the threaded holes on the connecting plate (11) and the base (7) to be meshed and connected with the connecting plate (11) and the base (7), an air outlet pipe (9) is arranged on one side of the inner wall of the shell (3), an air inlet pipe (6) is arranged on the other side of the inner wall of the shell (3), one end of the air outlet pipe (9) and one end of the air inlet pipe (6) are both provided with a filter screen (5), clamping plates (19) are arranged on two sides of the lower surface of the sealing cover (17), and clamping grooves (18) are arranged on two sides of the upper surface of the shell (3).

2. The noise-absorbing and noise-reducing centrifugal fan according to claim 1, wherein one end of the air outlet pipe (9) is provided with a connecting flange (14), and the connecting flange (14) is provided with a mounting hole (12).

3. The centrifugal fan with sound absorption and noise reduction functions as claimed in claim 1, wherein the sound absorption cotton (4) is bonded to the casing (3), and the sound absorption cotton (4) is located on the inner wall of the casing (3).

4. The centrifugal fan with sound absorption and noise reduction functions as claimed in claim 1, wherein the sealing cover (17) is in clearance connection with the clamping groove (18) on the upper surface of the casing (3) through a clamping plate (19) on the lower surface.

5. The centrifugal fan with sound absorption and noise reduction functions as claimed in claim 1, wherein handles (1) are arranged on both sides of the upper surface of the sealing cover (17).

6. The noise-absorbing and noise-reducing centrifugal fan according to claim 1, wherein four support columns (10) are disposed on two sides of the lower surface of the base (7), and the four support columns (10) are respectively located at four corners of the bottom of the base (7).