CN210660764U - Ventilation blower device that noise reduction effect is good - Google Patents
Ventilation blower device that noise reduction effect is good Download PDFInfo
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- CN210660764U CN210660764U CN201921880511.1U CN201921880511U CN210660764U CN 210660764 U CN210660764 U CN 210660764U CN 201921880511 U CN201921880511 U CN 201921880511U CN 210660764 U CN210660764 U CN 210660764U
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- noise reduction
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- good
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Abstract
The utility model provides a ventilator device with good noise reduction effect, belonging to the technical field of tunnel ventilation, comprising a shell connected with the output end of a fan and a bottom plate arranged at the bottom of the shell, wherein the bottom plate is connected with the shell through a height adjusting component; one side of the shell, which is close to the fan, is provided with a first sound-absorbing plate which is sunken towards the inside of the shell. The embodiment of the utility model provides a have simple structure, the good advantage of noise reduction effect, through with the casing connection at the output of fan, the noise that the fan during operation produced gets into inside the casing and is rebounded to the amortization layer by second acoustical panel lateral wall, absorbs by the amortization layer, and then realizes making an uproar purpose of falling, can effectually avoid the noise to leak, and the noise abatement pollutes, provides good operational environment.
Description
Technical Field
The utility model belongs to the technical field of the tunnel ventilation, specifically a ventilation blower device that noise reduction effect is good.
Background
Because the inside circulation of air effect in tunnel is relatively poor, people work in the tunnel for a long time and produce the adverse reaction because of the oxygen deficiency easily, at present, set up the ventilation blower in tunnel inside usually for improve the inside air quality in tunnel, guarantee safe construction.
The defect that current tunnel ventilation fan ubiquitous noise is big produces comparatively serious influence to staff's construction, also causes the influence to near resident's normal life simultaneously, the noise of ventilation blower mainly comes from the contact of its flabellum when rotatory with the air, the noise produces in the fan inside promptly, among the prior art, comes the noise reduction through the mode of for fan parcel sound absorbing layer, this kind of mode noise reduction effect is relatively poor, the noise still can be along with the air current diffusion to the external world of ventilation blower output.
SUMMERY OF THE UTILITY MODEL
To the not enough of above-mentioned prior art, the embodiment of the utility model provides a technical problem who solves provides a ventilation blower device that noise reduction effect is good.
In order to solve the technical problem, the utility model provides a following technical scheme:
a ventilator device with a good noise reduction effect comprises a shell connected with the output end of a fan and a bottom plate arranged at the bottom of the shell, wherein the bottom plate is connected with the shell through a height adjusting assembly; one side of the shell, which is close to the fan, is provided with a first silencing plate which is sunken towards the inside of the shell, and the middle part of the first silencing plate is provided with an air outlet.
As a further improvement of the utility model: the first sound-absorbing plate and the second sound-absorbing plate are both in a conical structure.
As a further improvement of the utility model: the horizontal axes of the first sound-absorbing plate and the second sound-absorbing plate are coincident with each other.
As a further improvement of the utility model: the sound-deadening layer is made of porous sponge.
As a further improvement of the present invention: the height adjusting assembly comprises a supporting bottom barrel fixedly arranged on the upper portion of the base plate and a lifting rod fixedly arranged at the bottom of the shell, one end, far away from the shell, of the lifting rod extends to the inside of the supporting bottom barrel and is in movable fit with the supporting bottom barrel, and fastening bolts are matched with threads on the side wall of the supporting bottom barrel.
As a further improvement of the present invention: the fan is characterized in that a sealing ring gasket is further arranged on the inner side of one end, close to the fan, of the shell, and a fastening piece is arranged on the outer side of the sealing ring gasket.
As a further improvement of the present invention: the fastener is a hoop or a binding wire.
As a further improvement of the present invention: the sealing ring gasket is made of rubber materials.
Compared with the prior art, the beneficial effects of the utility model are that:
the embodiment of the utility model provides a have simple structure, the good advantage of noise reduction effect, through with the casing connection at the output of fan, the noise that the fan during operation produced gets into inside the casing and is rebounded to the amortization layer by second acoustical panel lateral wall, absorbs by the amortization layer, and then realizes making an uproar purpose of falling, can effectually avoid the noise to leak, and the noise abatement pollutes, provides good operational environment.
Drawings
Fig. 1 is a schematic structural view of a ventilator device with good noise reduction effect;
fig. 2 is a first schematic structural diagram of a housing of a ventilator device with a good noise reduction effect;
fig. 3 is a schematic structural diagram ii of a housing of the ventilator apparatus with a good noise reduction effect;
in the figure: 1-bottom plate, 2-supporting bottom cylinder, 3-fastening bolt, 4-lifting rod, 5-fan body, 6-sealing ring pad, 7-fastening piece, 8-first silencing plate, 9-shell, 10-silencing layer, 11-air exhaust hole, 12-second silencing plate and 13-air outlet.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, the present embodiment provides a ventilator apparatus with a good noise reduction effect, including a casing 9 connected to an output end of a fan 5, and a bottom plate 1 disposed at the bottom of the casing 9, where the bottom plate 1 is connected to the casing 9 through a height adjustment assembly, a second sound-absorbing plate 12 recessed into the casing 9 is disposed on a side of the casing 9 away from the fan 5, a plurality of air exhaust holes 11 are disposed on an edge of the second sound-absorbing plate 12, and a sound-absorbing layer 10 is further disposed on an inner wall of the casing 9; one side of the shell 9 close to the fan 5 is provided with a first silencing plate 8 which is sunken towards the inside of the shell 9, and the middle part of the first silencing plate 8 is provided with an air outlet 13.
When the fan 5 works, generated air flow enters the shell 9 through the air outlet 13 in the middle of the first silencing plate 8 and acts on the side surface of the second silencing plate 12 and is exhausted through the air exhaust hole 11, noise generated by the fan 5 enters the shell 9 from the air outlet 13 and acts on the side wall of the second silencing plate 12, and acts on the silencing layer 10 after rebounding and is absorbed by the silencing layer 10, so that the purpose of noise reduction is achieved.
Further, first acoustical panel 8 and second acoustical panel 12 are the toper structure, and the horizontal axis of first acoustical panel 8 and second acoustical panel 12 coincides each other, and then guarantees that air current and noise through air outlet 13 can be evenly cut apart by second acoustical panel 12, and the noise acts on the amortization layer 10 that the conical surface of second acoustical panel 12 rebounds to casing 9 inner wall, is absorbed by amortization layer 10, realizes making an uproar purpose of falling.
Specifically, the sound-deadening layer 10 is made of a porous sponge.
Specifically, height adjusting subassembly includes support end section of thick bamboo 2 and the lifter 4 of fixed mounting in the casing 9 bottom of fixed mounting on 1 upper portion of bottom plate, the one end that the casing 9 was kept away from to lifter 4 extends to support end section of thick bamboo 2 inside and with support end section of thick bamboo 2 clearance fit, screw-thread fit has fastening bolt 3 on the 2 lateral walls of support end section of thick bamboo.
When installing casing 9 in fan 5 one side, through lifter 4 and the clearance fit who supports end section of thick bamboo 2, can adjust casing 9's height to adapt to not co-altitude fan 5's installation demand, after adjusting casing 9's height, support the bracing with fastening bolt 3 to supporting end section of thick bamboo 2 inside screw in, realize lifter 4's fixed.
The working principle of the embodiment is as follows: when the fan 5 works, generated air flow enters the shell 9 through the air outlet 13 in the middle of the first silencing plate 8 and acts on the side surface of the second silencing plate 12 and is exhausted through the air exhaust hole 11, noise generated by the fan 5 enters the shell 9 from the air outlet 13 and acts on the side wall of the second silencing plate 12, and acts on the silencing layer 10 after rebounding and is absorbed by the silencing layer 10, so that the purpose of noise reduction is achieved.
When installing casing 9 in fan 5 one side, through lifter 4 and the clearance fit who supports end section of thick bamboo 2, can adjust casing 9's height to adapt to not co-altitude fan 5's installation demand, after adjusting casing 9's height, support the bracing with fastening bolt 3 to supporting end section of thick bamboo 2 inside screw in, realize lifter 4's fixed.
Example 2
Referring to fig. 1, in order to improve the sealing effect at the joint between the housing 9 and the fan 5 and prevent noise from leaking from the joint, in this embodiment, compared with embodiment 1, a sealing ring gasket 6 is further disposed on the inner side of one end of the housing 9 close to the fan 5, and a fastening member 7 is disposed on the outer side of the sealing ring gasket 6.
The sealing ring gasket 6 is pressed and fixed outside the fan 5 through the fastening piece 7, so that the joint of the shell 9 and the fan 5 is sealed, and the sound insulation effect is further improved.
Specifically, fastener 7 is the clamp or pricks the silk, seal ring pad 6 is made by the rubber material.
The embodiment of the utility model provides a have simple structure, the good advantage of noise reduction effect, through connecting casing 9 at fan 5's output, the noise that fan 5 during operation produced gets into inside casing 9 and is rebounded to amortization layer 10 by second acoustical panel 12 lateral wall, absorbs by amortization layer 10, and then realizes making an uproar purpose of falling, can effectually avoid the noise to leak, and noise abatement pollutes, provides good operational environment.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (8)
1. A ventilator device with a good noise reduction effect comprises a shell (9) connected with an output end of a fan (5) and a bottom plate (1) arranged at the bottom of the shell (9), and is characterized in that the bottom plate (1) is connected with the shell (9) through a height adjusting assembly, a second noise reduction plate (12) sunken into the shell (9) is arranged on one side, away from the fan (5), of the shell (9), a plurality of air exhaust holes (11) are formed in the edge of the second noise reduction plate (12), and a noise reduction layer (10) is further arranged on the inner wall of the shell (9); one side of the shell (9) close to the fan (5) is provided with a first silencing plate (8) which is sunken towards the inside of the shell (9), and the middle part of the first silencing plate (8) is provided with an air outlet (13).
2. A noise reducing ventilator device in accordance with claim 1, characterised in that the first (8) and second (12) sound-absorbing plates are of conical configuration.
3. A fan arrangement with improved noise reduction according to claim 1 or 2, characterised in that the horizontal axes of the first (8) and second (12) sound-absorbing panels coincide with each other.
4. A noise reducing ventilator device according to claim 1 in which the sound damping layer (10) is made of a porous sponge.
5. A ventilator device with good noise reduction effect according to claim 1, characterized in that the height adjusting assembly comprises a supporting bottom cylinder (2) fixedly installed on the upper portion of the bottom plate (1) and a lifting rod (4) fixedly installed on the bottom of the casing (9), one end of the lifting rod (4) far away from the casing (9) extends into the supporting bottom cylinder (2) and is movably matched with the supporting bottom cylinder (2), and a fastening bolt (3) is in threaded fit with the side wall of the supporting bottom cylinder (2).
6. A ventilator device with good noise reduction effect according to claim 1, characterized in that a sealing ring gasket (6) is further arranged on the inner side of one end of the casing (9) close to the fan (5), and a fastening member (7) is arranged on the outer side of the sealing ring gasket (6).
7. A ventilator device with a good noise reduction according to claim 6, characterised in that the fastening means (7) is a clip or a wire.
8. A ventilator device with a good noise reduction according to claim 6, characterised in that the sealing ring gasket (6) is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880511.1U CN210660764U (en) | 2019-11-04 | 2019-11-04 | Ventilation blower device that noise reduction effect is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880511.1U CN210660764U (en) | 2019-11-04 | 2019-11-04 | Ventilation blower device that noise reduction effect is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660764U true CN210660764U (en) | 2020-06-02 |
Family
ID=70812671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921880511.1U Expired - Fee Related CN210660764U (en) | 2019-11-04 | 2019-11-04 | Ventilation blower device that noise reduction effect is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210660764U (en) |
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2019
- 2019-11-04 CN CN201921880511.1U patent/CN210660764U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200602 Termination date: 20201104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |