CN213983882U - Filter screen combination capable of reducing noise - Google Patents
Filter screen combination capable of reducing noise Download PDFInfo
- Publication number
- CN213983882U CN213983882U CN202120066220.XU CN202120066220U CN213983882U CN 213983882 U CN213983882 U CN 213983882U CN 202120066220 U CN202120066220 U CN 202120066220U CN 213983882 U CN213983882 U CN 213983882U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- rotating plate
- sound
- filter
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004744 fabric Substances 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000003584 silencer Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000030279 gene silencing Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Abstract
The utility model relates to a filter screen combination, in particular to a filter screen combination capable of reducing noise, which comprises a filter shell, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively arranged at two sides of the filter shell; the utility model discloses a noise reduction filter, including filter shell, silencer, filter screen mechanism, air-flow, filter shell, filter screen mechanism, silencer, and third rotor plate, be provided with filter screen mechanism in the filter shell, filter screen mechanism includes filter screen, silencer board and the unit that opens and shuts, and when the air current entered into from the air-supply line and filters the shell, can pass through the filtering action of filter screen to strike first rotor plate, second rotor plate and third rotor plate in proper order again on, through the noise cancelling action of first rotor plate, second rotor plate and third rotor plate self material, the production of noise abatement, simultaneously, filter screen mechanism will filter the big space conversion in the shell and become the subspace, further reduced the production of the noise that the echo leads to, improved the noise removing ability of this design.
Description
Technical Field
The utility model relates to a filter screen combination specifically is a filter screen combination that can the noise reduction.
Background
In a ventilation system, ductwork is a common delivery device, and, as the name implies, ductwork is the ductwork used for air transport and distribution. And current tuber pipe is carrying out the in-process of transporting the air current, often can be because the space in the tuber pipe is too spacious, leads to wind to send comparatively harsh buzzing when the tuber pipe.
When the tuber pipe was installed in the position that is close to the living area, like common exhaust duct etc. can seriously influence people's normal life, and is further, current tuber pipe does not have still to possess the filter capacity when the noise abatement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a filter screen combination that can noise reduction to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a filter screen combination capable of reducing noise comprises a filter shell, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively arranged on two sides of the filter shell; a filter screen mechanism is arranged in the filter shell and comprises a filter screen, an acoustical panel and an opening and closing unit, the filter screen is vertically arranged in the filter shell and is fixedly connected to the output end of the air inlet pipe, the acoustical panel is rotatably connected with the filter screen, and damping is arranged between the filter screen and the acoustical panel; the switching unit comprises a first rotating plate, a second rotating plate and a third rotating plate, the length of the first rotating plate is greater than that of the second rotating plate, the length of the second rotating plate is greater than that of the third rotating plate, and the silencing plate and the first rotating plate, the first rotating plate and the second rotating plate and the third rotating plate are elastically connected through springs; an expansion cloth is further wrapped between the sound-absorbing plate and the filter screen, an overflow port is formed in the expansion cloth, and the overflow port is arranged close to the lower end of the sound-absorbing plate; a stop block is further arranged below the overflow port, one surface of the stop block, which is close to the filter screen mechanism, is a concave cambered surface, an air flowing pipe is arranged in the stop block, and the air flowing pipe is communicated with the air outlet pipe; the first rotating plate, the second rotating plate and the third rotating plate are all made of polyurethane.
As a further aspect of the present invention: the shape of the air flowing pipe is threaded, and the air flowing pipe in the threaded shape is provided with an opening communicated with the air flowing pipe at the position contacted with the upper surface of the stop block.
As a further aspect of the present invention: the sound-absorbing plate is characterized in that a cavity is formed in the sound-absorbing plate, a plurality of sound-absorbing plates are sequentially arranged in the cavity along the length direction of the sound-absorbing plate, and each sound-absorbing plate comprises an opening end and a groove end.
As a further aspect of the present invention: the side wall of the sound-absorbing plate is further provided with a plurality of sound-absorbing holes, the sound-absorbing holes are horn-shaped, and the large openings of the horn-shaped holes are arranged towards the outer side of the sound-absorbing plate.
As a further aspect of the present invention: and the second rotating plate and the first rotating plate are both provided with filtering holes.
Compared with the prior art, the beneficial effects of the utility model are that: when the air current enters into from the air-supply line and filters the casing in, can pass through the filtering action of filter screen to on striking first rotor plate, second rotor plate and third rotor plate in proper order again, through the noise cancelling effect of first rotor plate, second rotor plate and third rotor plate self material, the production of noise abatement, simultaneously, filter screen mechanism converts the big space in the casing into the subspace, has further reduced the production of the noise that the echo leads to, has improved the noise removing ability of this design.
Drawings
Fig. 1 is a schematic structural view of a filter screen assembly capable of reducing noise.
Fig. 2 is a schematic view of the interior of an acoustic panel in a screen assembly for noise reduction.
Fig. 3 is a schematic structural view illustrating the connection of the first rotating plate, the second rotating plate and the noise reduction plate in the filter screen assembly capable of reducing noise.
In the figure: 1-filtering shell, 2-silencing board, 3-filtering net, 4-baffle, 5-first rotating board, 6-second rotating board, 7-third rotating board, 8-spring, 9-air inlet pipe, 10-air outlet pipe, 11-spreading cloth, 12-air flow pipe and 13-silencing board.
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.
Referring to fig. 1, as an embodiment, a filter screen assembly capable of reducing noise includes a filter housing 1, an air inlet pipe 9 and an air outlet pipe 10, wherein the air inlet pipe 9 and the air outlet pipe 10 are respectively disposed at two sides of the filter housing 1; a filter screen mechanism is arranged in the filter shell 1 and comprises a filter screen 3, an acoustical panel 2 and an opening and closing unit, the filter screen 3 is vertically arranged in the filter shell 1, the filter screen 3 is fixedly connected to the output end of the air inlet pipe 9, the acoustical panel 2 is rotatably connected with the filter screen 3, and damping is arranged between the filter screen 3 and the acoustical panel 2; the opening and closing unit comprises a first rotating plate 5, a second rotating plate 6 and a third rotating plate 7, the length of the first rotating plate 5 is greater than that of the second rotating plate 6, the length of the second rotating plate 6 is greater than that of the third rotating plate 7, and the sound attenuation plate 2 and the first rotating plate 5, the first rotating plate 5 and the second rotating plate 6 and the third rotating plate 7 are elastically connected through springs 8; an expansion cloth 11 is further wrapped between the sound-absorbing plate 2 and the filter screen 3, an overflow port is formed in the expansion cloth 11, and the overflow port is arranged close to the lower end of the sound-absorbing plate 2; a stop block 4 is further arranged below the overflow port, one surface, close to the filter screen mechanism, of the stop block 4 is a concave arc surface, an air flowing pipe 12 is arranged in the stop block 4, and the air flowing pipe 12 is communicated with an air outlet pipe 10; the first rotating plate 5, the second rotating plate 6 and the third rotating plate 7 are all made of polyurethane.
When air enters the filter housing 1 from the air inlet pipe 9, the air firstly passes through the first layer filtering action of the filter screen 3 and is blown to the third rotating plate 7, the second rotating plate 6 and the first rotating plate 5, because the length of the first rotating plate 5 is greater than that of the second rotating plate 6 and is greater than that of the third rotating plate 7, when air is blown into the filter housing 1, the first rotating plate 5 is firstly extruded, the sound-absorbing plates 2 and the second rotating plate 6 are driven to gradually expand by the elastic pulling capacity of the springs 8 connected with the two sides of the first rotating plate 5, transmitted air flow is collided on a blocking surface formed by the expanding cloth 11 and the sound-absorbing plates 2, the air flow is blown out from overflow ports formed on the expanding cloth 11, on the one hand, the air flow passes through the first rotating plate 5, the second rotating plate 6 and the third rotating plate 7 in sequence, and because of the first rotating plate 5, the second rotating plate 6 and the third rotating plate 7, The second rotating plate 6 and the third rotating plate 7 can provide certain silencing capacity, and on the other hand, the original large space of the filtering shell 1 is converted into a small space, the volume of the small space is determined according to the flow velocity of air flow entering from the air inlet pipe 9, the small space can reduce the size of echo generated by repeated impact of the air flow in the space, and the noise reduction effect of the design is further improved.
Further, when the air current flows through the overflow mouth, can be along curved dog 4 upper surface motion, the arc is favorable to the flow of air current, can improve the smooth and easy degree of flow of air current, and then improves the efficiency that the air current flows from air-out pipe 10.
To sum up, when the air current enters into from air-supply line 9 and filters in the casing 1, can pass through filter screen 3's filtering action to strike first rotor plate 5, second rotor plate 6 and third rotor plate 7 in proper order again, through the noise cancelling effect of first rotor plate 5, second rotor plate 6 and third rotor plate 7 self material, noise abatement's production, simultaneously, filter screen mechanism will filter the big space conversion in the casing 1 and become the subspace, further reduced the noise production that the echo leads to, improved the noise removing ability of this design.
Referring to fig. 1, as a preferred embodiment, the air flow pipe 12 is threaded, and the threaded air flow pipe 12 and the upper surface of the stopper 4 are both provided with through holes communicated with the air flow pipe 12.
During the use, the ability that the tuber pipe 12 of circulation of screw thread shape can improve the air current and accelerate in the tuber pipe 12, and when the air current at rear constantly promoted, the air current that enters into in the tuber pipe 12 can produce certain tangential acceleration in the tuber pipe 12 of circulation of screw thread shape, and then when moving to going out tuber pipe 10, moves along the pipe wall high speed as far as possible for the air current leaves the speed of filtering shell 1 bigger, has improved this design output gas's ability.
Referring to fig. 1 and 2, as another preferred embodiment, a cavity is arranged in the sound-absorbing plate 2, a plurality of sound-absorbing plates 13 are sequentially arranged in the cavity along the length direction of the sound-absorbing plate 2, and the sound-absorbing plates 13 comprise open ends and recessed ends.
Specifically, referring to fig. 2, when the sound wave generated by the movement of the air flow enters the sound-absorbing plate 2, the sound wave moves along the side wall of the sound-absorbing plate 13, and when the sound wave continuously moves along the side wall of the sound-absorbing plate 13, the sound wave gradually converges at the groove end of the sound-absorbing plate 13 and is difficult to diffuse out of the sound-absorbing plate 2, so that the sound-absorbing plate 13 in the sound-absorbing plate 2 can also play a certain sound-absorbing role.
Referring to fig. 2, as another preferred embodiment, a plurality of sound-absorbing holes are further formed in the side wall of the sound-absorbing plate 2, the sound-absorbing holes are horn-shaped, and the large opening of the horn-shape is disposed toward the outer side of the sound-absorbing plate 2.
When the silencer is used, sound waves flowing through the air flow can penetrate through the sound absorption holes to enter the silencer board 2, and the sound absorption holes are trumpet-shaped, so that more sound waves can be absorbed to enter the silencer board 2.
Referring to fig. 3, as another preferred embodiment, the second rotating plate 6 and the first rotating plate 5 are both provided with filtering holes.
When in use, the filter holes can further play a certain filtering role.
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 (5)
1. A filter screen combination capable of reducing noise comprises a filter shell (1), an air inlet pipe (9) and an air outlet pipe (10), wherein the air inlet pipe (9) and the air outlet pipe (10) are respectively arranged on two sides of the filter shell (1); the air purifier is characterized in that a filter screen mechanism is arranged in the filter shell (1), the filter screen mechanism comprises a filter screen (3), an acoustical panel (2) and an opening and closing unit, the filter screen (3) is vertically arranged in the filter shell (1), the filter screen (3) is fixedly connected to the output end of an air inlet pipe (9), the acoustical panel (2) is rotatably connected with the filter screen (3), and damping is arranged between the filter screen (3) and the acoustical panel (2); the opening and closing unit comprises a first rotating plate (5), a second rotating plate (6) and a third rotating plate (7), the length of the first rotating plate (5) is larger than that of the second rotating plate (6), the length of the second rotating plate (6) is larger than that of the third rotating plate (7), and the sound attenuation plate (2) is elastically connected with the first rotating plate (5), the first rotating plate (5) is elastically connected with the second rotating plate (6), and the second rotating plate (6) is elastically connected with the third rotating plate (7) through springs (8); an expansion cloth (11) is further wrapped between the sound-absorbing plate (2) and the filter screen (3), an overflow port is formed in the expansion cloth (11), and the overflow port is arranged close to the lower end of the sound-absorbing plate (2); a stop block (4) is further arranged below the overflow port, one surface, close to the filter screen mechanism, of the stop block (4) is a concave arc surface, an air flowing pipe (12) is arranged in the stop block (4), and the air flowing pipe (12) is communicated with an air outlet pipe (10); the first rotating plate (5), the second rotating plate (6) and the third rotating plate (7) are all made of polyurethane.
2. The filter screen combination capable of reducing noise according to claim 1, wherein the air flow pipe (12) is threaded, and the threaded air flow pipe (12) and the stopper (4) are provided with through openings at the positions contacting with the upper surface of the air flow pipe (12).
3. A filter screen combination capable of reducing noise according to claim 1, wherein a cavity is arranged in the sound-absorbing plate (2), a plurality of sound-absorbing plates (13) are sequentially arranged in the cavity along the length direction of the sound-absorbing plate (2), and the sound-absorbing plates (13) comprise open ends and groove ends.
4. The filter screen combination capable of reducing noise according to claim 3, wherein the side wall of the sound-absorbing plate (2) is further provided with a plurality of sound-absorbing holes, the sound-absorbing holes are horn-shaped, and the large opening of the horn-shaped sound-absorbing holes is arranged towards the outer side of the sound-absorbing plate (2).
5. The filter screen assembly of claim 1, wherein the second rotating plate (6) and the first rotating plate (5) are provided with filter holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066220.XU CN213983882U (en) | 2021-01-12 | 2021-01-12 | Filter screen combination capable of reducing noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120066220.XU CN213983882U (en) | 2021-01-12 | 2021-01-12 | Filter screen combination capable of reducing noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213983882U true CN213983882U (en) | 2021-08-17 |
Family
ID=77251049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120066220.XU Expired - Fee Related CN213983882U (en) | 2021-01-12 | 2021-01-12 | Filter screen combination capable of reducing noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213983882U (en) |
-
2021
- 2021-01-12 CN CN202120066220.XU patent/CN213983882U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1515219A (en) | Dust-collector noise silencer | |
| CN208994915U (en) | A kind of elevator ventilation device | |
| CN213983882U (en) | Filter screen combination capable of reducing noise | |
| CN212360095U (en) | Noise elimination structure for air compressor | |
| CN211739406U (en) | New trend system case with shock-absorbing function of making an uproar falls | |
| CN2843327Y (en) | Silencer of dust collector | |
| CN218154670U (en) | Sound insulation cover for outdoor exhaust fan | |
| CN213245411U (en) | Ultra-silent fresh air system | |
| CN207634397U (en) | Ventilation silencer | |
| CN202866936U (en) | Micropore muffler | |
| CN210434188U (en) | Ultra-low noise dust remover | |
| CN211397904U (en) | Roots blower noise reduction device | |
| CN202866938U (en) | Impedance combined type muffler | |
| CN208045094U (en) | A kind of environmental protection noise reducing apparatus | |
| CN217842067U (en) | Ventilation equipment with noise reduction function | |
| CN217185913U (en) | Noise-reduction air outlet structure of side air outlet type dust collector | |
| CN217108476U (en) | Valve of muffler and applied this muffler | |
| CN111442516A (en) | A air exchange system noise control device for in low noise room | |
| CN2809235Y (en) | Exhaust muffler for diesel engine of railway passenger car with air conditioner | |
| CN216278688U (en) | Silencer of fan for desulfurization and denitrification | |
| CN213540532U (en) | Silencer | |
| CN213363459U (en) | Ventilation and noise reduction device with cooling tower capable of being optimized and energy-saving | |
| CN213366269U (en) | Silencing blow-drying box for cable processing | |
| CN210569034U (en) | High pressure positive blower environmental protection noise reduction system for operating room | |
| CN211081607U (en) | Low noise air purification door |
Legal Events
| 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: 20210817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |