CN218717595U - Backward-inclined impeller centrifugal fan - Google Patents
Backward-inclined impeller centrifugal fan Download PDFInfo
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- CN218717595U CN218717595U CN202222136482.6U CN202222136482U CN218717595U CN 218717595 U CN218717595 U CN 218717595U CN 202222136482 U CN202222136482 U CN 202222136482U CN 218717595 U CN218717595 U CN 218717595U
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Abstract
The utility model discloses a hypsokinesis impeller centrifugal fan, including the fan main part, the outside of fan main part is provided with the frame, both ends surface all is provided with installation mechanism around the frame, the lower extreme surface of frame is provided with and falls the mechanism of making an uproar. A hypsokinesis impeller centrifugal fan, installation mechanism through setting up, can effectual improvement people's convenience, more make things convenient for people to install the frame, make things convenient for later stage dismantlement and maintenance, mechanism of making an uproar falls through setting up, the noise that can effectual absorption fan operation produces, the effectual travelling comfort that improves people's living environment, when the fan produces the noise and reaches the mechanism of making an uproar that falls, the noise can be inhaled the sound cotton by abatvoix and flat bed and absorb partly, then transmit to elastic membrane and drive its vibrations, this part vibrations is inhaled the sound cotton absorption by the toper again, transmit the elastic membrane again, the elastic membrane is each other one-tenth angle, make sound unordered propagation, further improve the noise reduction effect.
Description
Technical Field
The utility model relates to a fan field specifically is a hypsokinesis impeller centrifugal fan.
Background
The fan is a driven fluid machine which increases the gas pressure and discharges the gas by means of the input mechanical energy, is a short form of Chinese habit for gas compression and gas delivery machines, and generally comprises a ventilator, a blower and a wind driven generator.
The existing fan is inconvenient to install and use, noise generated during operation of the fan is large, negative influence is caused to normal life of people due to excessive noise, certain negative influence is brought to the use process of people, and therefore the backward inclined impeller centrifugal fan is provided.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a hypsokinesis impeller centrifugal fan possesses easy to assemble, and noise reduction etc. advantage can effectively solve the problem among the background art.
(II) technical scheme
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a hypsokinesis impeller centrifugal fan, includes the fan main part, the outside of fan main part is provided with the frame, both ends surface all is provided with installation mechanism around the frame, the lower extreme surface of frame is provided with and falls the mechanism of making an uproar, installation mechanism is including blocking strip, installation round pin, installation piece and connecting screw, the installation round pin runs through in the card strip, the installation piece is located the front end surface of card strip, connecting screw runs through in the installation piece, lock nut is located connecting screw's outer wall.
Preferably, a fixing groove is formed between the clamping strip and the installation block, the front end outer surface of the clamping strip is fixedly connected with the rear end outer surface of the installation block through the fixing groove, a sleeve hole is formed between the connecting screw rod and the locking nut, and the outer wall of the connecting screw rod is detachably connected with the inner wall of the locking nut through the sleeve hole.
Preferably, the noise reduction mechanism comprises a sound absorption plate, flat layer sound absorption cotton, conical sound absorption cotton, an elastic membrane and a damping shock absorber.
Preferably, the sound cotton is inhaled to the flat bed and is located the internal surface all around of abatvoix, the toper is inhaled the sound cotton and is all located the flat bed with the elastic membrane and inhale the cotton inside of sound, and the elastic membrane is located the toper and inhale the cotton lower extreme of sound, the damping bumper shock absorber is located the lower extreme surface of abatvoix.
Preferably, the sound absorption board and the flat bed inhale and be provided with the fixed slot No. two between the sound cotton, the internal surface all around of sound absorption board inhales the surface fixed connection all around of sound cotton through No. two fixed slots and flat bed, elastic film and flat bed inhale and are provided with the fixed slot No. three between the sound cotton, the both sides surface of elastic film inhales the internal surface fixed connection in cotton both sides through No. three fixed slots and flat bed, be provided with the fixed slot No. four between damping bumper shock absorber and the sound absorption board, the upper end surface of damping bumper shock absorber is through the lower extreme fixed surface connection of fixed slot No. four with the sound absorption board.
(III) advantageous effects
Compared with the prior art, the utility model provides a hypsokinesis impeller centrifugal fan possesses following
Has the beneficial effects that:
1. this kind of hypsokinesis impeller centrifugal fan, installation mechanism through setting up, can effectual improvement people's convenience, more make things convenient for people to install the frame, make things convenient for the later stage to dismantle and maintain, the both sides surface of border chucking frame in the both sides of card strip during the installation, run through the installation round pin in the inside of card strip to frame again, to block the strip and be in the same place with frame attach, run through connecting screw in the installation piece to the inside of making an uproar mechanism of making an uproar at last, through the installation piece, connecting screw and lock nut will block the strip and fall the mechanism of making an uproar and link together, through installation mechanism with frame mounting on falling the mechanism of making an uproar, the installation is simple, and convenient for operation.
2. This a hypsokinesis impeller centrifugal fan, noise reduction mechanism through setting up, the noise that can effectual absorption fan operation produced, the effectual travelling comfort that has improved people's living environment, the flat bed is inhaled and is equipped with the nano-powder in the sound cotton, like taiji mountain flour, the performance of making an uproar falls in the improvement, when the fan produces the noise and reaches noise reduction mechanism, the noise can be inhaled the sound cotton by abatvoix and flat bed and absorb partly, then transmit to the elastic membrane and drive its vibrations, this part vibrations are inhaled the sound cotton absorption by the toper again, transmit the elastic membrane again, the elastic membrane is mutual angle, make sound unordered propagation, the effect of making an uproar further improves, the shock attenuation that the fan produced can be absorbed to the damping bumper shock absorber, the source of noise is produced by the vibrations of object, can further noise reduction after absorbing the shock attenuation.
Drawings
Fig. 1 is a schematic view of the overall structure of a centrifugal fan with a backward inclined impeller according to the present invention.
Fig. 2 is an enlarged view of a position a of the centrifugal fan with backward inclined impeller of the present invention.
Fig. 3 is the utility model relates to a cross-sectional view of mechanism of making an uproar falls in hypsokinesis impeller centrifugal fan.
In the figure: 1. a fan main body; 2. a frame; 3. an installation mechanism; 4. a noise reduction mechanism; 301. clamping the strip; 302. Mounting a pin; 303. mounting blocks; 304. connecting a screw rod; 305. locking the nut; 401. a sound-absorbing panel; 402. Flat layer sound-absorbing cotton; 403. conical sound-absorbing cotton; 404. an elastic film; 405. a shock absorber is damped.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Detailed description of the preferred embodiment
The present embodiment is an embodiment of a backward inclined impeller centrifugal fan.
As shown in fig. 1-3, a backward-inclined impeller centrifugal fan includes a fan main body 1, a frame 2 is disposed outside the fan main body 1, both outer surfaces of front and rear ends of the frame 2 are provided with mounting mechanisms 3, a noise reduction mechanism 4 is disposed on an outer surface of a lower end of the frame 2, each mounting mechanism 3 includes a clamping strip 301, a mounting pin 302, a mounting block 303 and a connecting screw 304, the mounting pin 302 penetrates through the clamping strip 301, the mounting block 303 is located on an outer surface of a front end of the clamping strip 301, the connecting screw 304 penetrates through the mounting block 303, a locking nut 305 is located on an outer wall of the connecting screw 304, a first fixing groove is disposed between the clamping strip 301 and the mounting block 303, the outer surface of the front end of the clamping strip 301 is fixedly connected with an outer surface of a rear end of the mounting block 303 through the first fixing groove, a sleeve hole is disposed between the connecting screw 304 and the locking nut 305, and an outer wall of the connecting screw 304 is detachably connected with an inner wall of the locking nut 305 through the sleeve hole.
It should be noted that, through the installation mechanism 3 that sets up, can effectual improvement people's convenience, more make things convenient for people to install frame 2, make things convenient for later stage dismantlement and maintenance, during the installation with the both sides interior border chucking frame 2's of card strip 301 both sides surface, run through the inside of card strip 301 to frame 2 with installation round pin 302 again, link together card strip 301 and frame 2, run through connecting screw 304 in the inside of installation piece 303 to noise reduction mechanism 4 finally, link together card strip 301 and noise reduction mechanism 4 through installation piece 303, connecting screw 304 and lock nut 305, install frame 2 on noise reduction mechanism 4 through installation mechanism 3, simple to operate, through noise reduction mechanism 4 that sets up, can effectual absorption fan noise that produces when operation, the effectual travelling comfort that has improved people's living environment, be equipped with nanometer powder in the flat bed cotton 402, like taiji stone powder, improve noise reduction performance, when the fan produces the noise and passes to noise reduction mechanism 4, the noise can be absorbed by sound absorption board 401 and flat bed 402 part, then transmit it to the elastic shock absorber 404 that this part is the conical vibration absorbing vibration, further the damping vibration absorbing effect that can be produced by the damping vibration reduction vibration absorbing effect is the further, the damping vibration absorbing effect is the damping vibration reduction mechanism 405 that can be further reduced again.
Detailed description of the invention
The embodiment is an embodiment of a noise reduction device for a backward inclined impeller centrifugal fan.
As shown in fig. 3, the noise reduction mechanism 4 includes a sound absorption board 401, a flat sound absorption cotton 402, a conical sound absorption cotton 403, an elastic film 404 and a damping shock absorber 405, the flat sound absorption cotton 402 is located on the peripheral inner surface of the sound absorption board 401, the conical sound absorption cotton 403 and the elastic film 404 are both located inside the flat sound absorption cotton 402, the elastic film 404 is located at the lower end of the conical sound absorption cotton 403, the damping shock absorber 405 is located on the lower end outer surface of the sound absorption board 401, a second fixing groove is formed between the sound absorption board 401 and the flat sound absorption cotton 402, the peripheral inner surface of the sound absorption board 401 is fixedly connected with the peripheral outer surface of the flat sound absorption cotton 402 through the second fixing groove, a third fixing groove is formed between the elastic film 404 and the flat sound absorption cotton 402, the outer surfaces of two sides of the elastic film 404 are fixedly connected with the inner surfaces of two sides of the flat sound absorption cotton 402 through the third fixing groove, a fourth fixing groove is formed between the damping shock absorber 405 and the sound absorption board 401, and the outer surface of the upper end of the damping shock absorber 405 is fixedly connected with the lower end outer surface of the sound absorption board 401 through the fourth fixing groove.
It is noted that, herein, relational terms such as first and second (a, b, etc.) and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (5)
1. A hypsokinesis impeller centrifugal fan, includes fan main part (1) and lock nut (305), its characterized in that: the outside of fan main part (1) is provided with frame (2), both ends surface all is provided with installation mechanism (3) around frame (2), the lower extreme surface of frame (2) is provided with and falls the mechanism of making an uproar (4), installation mechanism (3) are including card strip (301), installation round pin (302), installation piece (303) and connecting screw (304), installation round pin (302) run through in card strip (301), installation piece (303) are located the front end surface of card strip (301), connecting screw (304) run through in installation piece (303), lock nut (305) are located the outer wall of connecting screw (304).
2. The backrake impeller centrifugal fan of claim 1, wherein: be provided with the fixed slot No. one between card strip (301) and installation piece (303), the front end surface of card strip (301) is connected through the rear end surface fixed connection of fixed slot and installation piece (303), be provided with the trepanning between connecting screw (304) and lock nut (305), the outer wall of connecting screw (304) passes through the trepanning and can dismantle with the inner wall of lock nut (305) and be connected.
3. The backward inclined impeller centrifugal fan according to claim 1, wherein: the noise reduction mechanism (4) comprises a sound absorption plate (401), flat-layer sound absorption cotton (402), conical sound absorption cotton (403), an elastic film (404) and a damping shock absorber (405).
4. A backward inclined impeller centrifugal fan according to claim 3, wherein: the sound cotton (402) is inhaled to the flat bed and is located acoustic panel (401) internal surface all around, cotton (403) is all inhaled with elastic membrane (404) to the toper and is located the flat bed and inhale the inside of sound cotton (402), and elastic membrane (404) are located the toper and inhale the lower extreme of sound cotton (403), damping bumper shock absorber (405) are located the lower extreme surface of acoustic panel (401).
5. A backward inclined impeller centrifugal fan according to claim 3, wherein: inhale and be provided with the fixed slot No. two between sound cotton (402) with the flat bed in abatvoix (401), the internal surface all around of abatvoix (401) is through the fixed surface connection all around of inhaling sound cotton (402) with the flat bed in No. two fixed slots, elastic membrane (404) and flat bed inhale and be provided with the fixed slot No. three between sound cotton (402), the both sides internal surface fixed connection of sound cotton (402) is inhaled through fixed slot No. three and flat bed in the both sides of elastic membrane (404), be provided with the fixed slot No. four between damping bumper shock absorber (405) and abatvoix (401), the upper end surface of damping bumper shock absorber (405) is through the fixed surface connection of the lower extreme of fixed slot No. four with abatvoix (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222136482.6U CN218717595U (en) | 2022-08-15 | 2022-08-15 | Backward-inclined impeller centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222136482.6U CN218717595U (en) | 2022-08-15 | 2022-08-15 | Backward-inclined impeller centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717595U true CN218717595U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222136482.6U Active CN218717595U (en) | 2022-08-15 | 2022-08-15 | Backward-inclined impeller centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717595U (en) |
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2022
- 2022-08-15 CN CN202222136482.6U patent/CN218717595U/en active Active
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