CN213684604U - Air blower with built-in micro-perforated plate silencer - Google Patents
Air blower with built-in micro-perforated plate silencer Download PDFInfo
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- CN213684604U CN213684604U CN202022606119.7U CN202022606119U CN213684604U CN 213684604 U CN213684604 U CN 213684604U CN 202022606119 U CN202022606119 U CN 202022606119U CN 213684604 U CN213684604 U CN 213684604U
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- 230000003584 silencer Effects 0.000 title description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 230000030279 gene silencing Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Abstract
一种内置微穿孔板消声器的鼓风机，包括底板，所述底板内部四角处均设有螺杆，所述底板顶部两侧均固定连接有固定板，所述固定板内部贯穿有转动杆，所述转动杆外壁两端均套接有锥齿轮，所述锥齿轮外壁均啮合有转向齿轮，所述转向齿轮与螺杆顶部固定连接。本实用新型通过电机带动传动皮带转动，使驱动轮带动连接杆转动，叶轮随之转动产生风力，在叶轮压缩空气时，叶轮上气流层流附面层较早地转化为紊流，使涡流分离，有效的提高了高压鼓风机的使用率，噪声降低，壳体的输出端法兰连接的微穿孔板消声器设置为弯管状，对壳体的出风量进行导向以及分流，缓解壳体内的冲击压力，大大降低了噪音。
A blower with a built-in micro-perforated plate muffler, comprising a bottom plate, four corners of the bottom plate are provided with screws, both sides of the top of the bottom plate are fixedly connected with a fixed plate, and a rotating rod runs through the inside of the fixed plate, and the rotating Both ends of the outer wall of the rod are sleeved with bevel gears, the outer walls of the bevel gears are meshed with steering gears, and the steering gears are fixedly connected with the top of the screw rod. The utility model drives the transmission belt to rotate through the motor, so that the driving wheel drives the connecting rod to rotate, and the impeller rotates accordingly to generate wind force. When the impeller compresses air, the air flow laminar flow boundary layer on the impeller is converted into turbulent flow earlier, so that the eddy current is separated. , effectively improve the utilization rate of the high-pressure blower and reduce the noise. The micro-perforated plate muffler connected to the flange at the output end of the casing is set to a curved tube shape, which guides and divides the air output of the casing and relieves the impact pressure in the casing. , which greatly reduces the noise.
Description
Technical Field
The utility model relates to an air-blower technical field, concretely relates to air-blower of built-in microperforated panel silencer.
Background
With the development of urbanization, subways become important urban vehicles, centrifugal blowers squeeze air by utilizing centrifugal force generated by working rotary wheels provided with a plurality of blades so as to achieve certain air volume and air pressure, air exchange needs to be carried out through the centrifugal blowers because the subways are usually arranged underground, underground air circulation is kept, and the micropunch plate silencer is a novel silencer made of a micropunch plate sound absorption structure. A plurality of micropores are drilled on a thin metal plate with the thickness of less than 1mm without any porous sound absorption material, the aperture of the micropores is generally about 0.5-1 mm, the perforation rate is between 1% and 3%, and a certain cavity is left behind a perforated plate to form the sound absorption structure of the micro-perforated plate. Microperforated panels are sound absorbing elements of high acoustic resistance and low acoustic mass.
The existing blower generally has the defect of high noise, the noise generated by resonance between the high-pressure blower and the bottom support frame is one of main noise sources, particularly the vibration noise of the large-sized high-pressure blower is more obvious, the blower is easy to vibrate during working, and the service life of internal elements is shortened.
Therefore, it is necessary to invent a blower with a built-in silencer of a micro perforated plate to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air-blower of built-in microperforated panel silencer, it rotates to drive driving belt through the motor, make the drive wheel drive the connecting rod and rotate, the impeller rotates thereupon and produces wind-force, when impeller compressed air, the air current laminar flow boundary layer turns into the turbulent flow earlier on the impeller, make vortex separation, the microperforated panel silencer of the output flange joint of casing sets up to the elbow form, lead and shunt the air output of casing, alleviate the impact pressure in the casing, with the above-mentioned weak point in the solution technique.
In order to achieve the above object, the present invention provides the following technical solutions: an air blower with a built-in micro-perforated plate silencer comprises a bottom plate, wherein screw rods are arranged at four corners inside the bottom plate, fixed plates are fixedly connected to two sides of the top of the bottom plate, a rotating rod penetrates through the fixed plates, bevel gears are sleeved at two ends of the outer wall of the rotating rod, the outer wall of each bevel gear is meshed with a steering gear, the steering gear is fixedly connected with the top of each screw rod, a handle is fixedly connected to one side of the outer wall of the rotating rod, a shockproof box is fixedly connected to the top of the bottom plate close to two sides of the fixed plates, a protective frame penetrates through the inner wall of the shockproof box and is in sliding connection with the shockproof box, a plurality of second springs are arranged inside the shockproof box, two sides of the outer wall of each second spring are respectively fixedly connected with the shockproof box and the protective frame, a box body, the utility model discloses a fan assembly, including casing inner wall, fan subassembly, connecting rod, support frame, connecting rod, motor output end outer wall, casing output end, the casing inner wall one side is equipped with the fan subassembly, the inside runner that is equipped with of fan subassembly, runner outer wall one side fixedly connected with impeller, box outer wall one side is equipped with the motor, the bottom plate top is close to box one side and is equipped with the support frame, support frame top one side is equipped with the connecting rod, the connecting rod is equipped with first bearing with the support frame junction, connecting rod outer wall fixedly connected with drive wheel, motor output end outer wall is equipped with driving belt, the casing output end is equipped with the microperforated panel silencer, microperforated panel silencer output end has the play tuber.
Preferably, the screw rod penetrates through the bottom plate and extends to the bottom, the screw rod is in threaded connection with the bottom plate, a supporting plate is fixedly connected to the bottom of the screw rod, a first spring is sleeved on the outer wall of the screw rod, and two ends of the outer wall of the first spring correspond to the bottom plate and the supporting plate respectively.
Preferably, the driving wheel is in transmission connection with the motor output shaft through a transmission belt, the connecting rod is fixedly connected with the rotating wheel, the connecting rod penetrates through the box body and extends to the inside, and a second bearing is arranged at the joint of the connecting rod and the box body.
Preferably, the sound insulation layer and the sound insulation cotton are arranged in the sound insulation layer, and the sound insulation layer is composed of a vacuum interlayer.
Preferably, the air outlet pipe is internally provided with a buffer plate, one side of the outer wall of the buffer plate is provided with a splitter plate, and the splitter plate is internally provided with a plurality of splitter holes.
Preferably, the number of the impellers is multiple, and a honeycomb-shaped mesh is arranged inside the filter cylinder.
In the technical scheme, the utility model provides a technological effect and advantage:
the rotating rod is rotated by holding the handle, the bevel gear on the outer wall of the rotating rod is meshed with the steering gear, the steering gear drives the fixed plate to rotate in the bottom plate, the bottom plate is lifted to adjust the height, the motor drives the transmission belt to rotate, the driving wheel drives the connecting rod to rotate, the impeller rotates along with the connecting rod to generate wind power, when the impeller compresses air, the airflow laminar boundary layer on the impeller is converted into turbulent flow earlier, so that the eddy flow is separated, the utilization rate of the high-pressure blower is effectively improved, the service life of the impeller is effectively prolonged, the noise is reduced, the silencer of the micropunch plate connected with the flange at the output end of the shell is arranged in a bent pipe shape, the air output to the casing leads and shunts, alleviates the impact pressure in the casing, greatly reduced the noise, the inside gas of air-out pipe fully contacts with the amortization layer under the inside reposition of redundant personnel hole effect of buffer board and flow distribution plate, reaches the effect of further noise reduction.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is a sectional view of the overall structure of the present invention;
fig. 2 is a rear view of the present invention;
FIG. 3 is a sectional view of the present invention;
FIG. 4 is a sectional view of a partial structure of the sound-deadening layer of the present invention;
fig. 5 is an enlarged view of a structure in fig. 1 according to the present invention.
Description of reference numerals:
1. a base plate; 2. a screw; 3. a support plate; 4. a first spring; 5. a fixing plate; 6. rotating the rod; 7. a bevel gear; 8. a steering gear; 9. a handle; 10. a shock-proof box; 11. a protective frame; 12. a second spring; 13. a box body; 14. a housing; 15. a fan assembly; 16. a rotating wheel; 17. an impeller; 18. a motor; 19. a connecting rod; 20. a drive wheel; 21. a micro-perforated plate muffler; 22. an air outlet pipe; 23. a filter cartridge; 24. a silencing sheet; 25. a sound-deadening layer; 26. a flow distribution plate; 27. a sound insulating layer; 28. silencing cotton.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The utility model provides an air blower with a built-in micro-perforated plate silencer as shown in figures 1-5, which comprises a bottom plate 1, wherein screw rods 2 are arranged at four corners inside the bottom plate 1, both sides of the top of the bottom plate 1 are fixedly connected with fixed plates 5, a rotating rod 6 penetrates through the inside of the fixed plates 5, bevel gears 7 are sleeved at both ends of the outer wall of the rotating rod 6, the outer wall of the bevel gear 7 is engaged with a steering gear 8, the steering gear 8 is fixedly connected with the top of the screw rods 2, one side of the outer wall of the rotating rod 6 is fixedly connected with a handle 9, the top of the bottom plate 1 is fixedly connected with a shockproof box 10 close to both sides of the fixed plates 5, a protective frame 11 penetrates through the inner wall of the shockproof box 10, the protective frame 11 is in sliding connection with the shockproof box 10, a plurality of second springs 12 are arranged inside the shockproof box 10, both sides of the outer wall, the box body 13 is arranged on the central axis of the top of the bottom plate 1, the box body 13 is arranged, the shell body 14 is arranged in the box body 13, the fan component 15 is arranged on one side of the inner wall of the shell body 14, the rotating wheel 16 is arranged in the fan component 15, the impeller 17 is fixedly connected to one side of the outer wall of the rotating wheel 16, the motor 18 is arranged on one side of the outer wall of the box body 13, the support frame is arranged on one side, close to the box body 13, of the top of the bottom plate 1, the connecting rod 19 is arranged on one side of the top of the support frame, the first bearing is arranged at the joint of the connecting rod 19 and the support frame, the driving wheel 20 is fixedly connected to the outer wall of the output end of the motor 18, the output end of, the interior of the filter cartridge 23 is provided with a silencing sheet 24, and the inner walls of the micro-perforated plate silencer 21 and the air outlet pipe 22 are both provided with a silencing layer 25.
Further, in the above technical scheme, the screw rod 2 penetrates through the bottom plate 1 and extends to the bottom, the screw rod 2 is in threaded connection with the bottom plate 1, the bottom of the screw rod 2 is fixedly connected with the supporting plate 3, the outer wall of the screw rod 2 is sleeved with the first spring 4, and two ends of the outer wall of the first spring 4 correspond to the bottom plate 1 and the supporting plate 3 respectively.
Further, in the above technical solution, the driving wheel 20 is in transmission connection with an output shaft of the motor 18 through a transmission belt, the connecting rod 19 is fixedly connected with the runner 16, the connecting rod 19 penetrates through the box body 13 and extends to the inside, and a second bearing is arranged at a connection position of the connecting rod 19 and the box body 13.
Further, in the above technical solution, a sound insulation layer 27 and sound insulation cotton 28 are provided inside the sound insulation layer 25, and the sound insulation layer 27 is composed of a vacuum interlayer.
Further, in the above technical scheme, a buffer plate is arranged inside the air outlet pipe 22, a splitter plate 26 is arranged on one side of the outer wall of the buffer plate, and a plurality of splitter holes are formed inside the splitter plate 26.
Further, in the above technical solution, the number of the impellers 17 is set to be plural, and a honeycomb-shaped mesh is arranged inside the filter cartridge 23.
The implementation mode is specifically as follows: the utility model discloses a hold tight handle 9 and rotate dwang 6, make bevel gear 7 and the 8 meshing of steering gear of dwang 6 outer wall, bevel gear 7 drives steering gear 8 and rotates, steering gear 8 drives fixed plate 5 and rotates in 1 bottom plate is inside, make bottom plate 1 carry out the lift adjustment height, then starter motor 18, motor 18 drives driving belt and rotates, make drive wheel 20 drive connecting rod 19 and rotate, connecting rod 19 rotates and drives runner 16 and rotate, make runner 16 outer wall's impeller 17 rotate along with it and produce wind-force, when impeller 17 compressed air, the air current laminar flow boundary layer changes the turbulent flow earlier on impeller 17, make vortex separation, the effectual rate of utilization that improves high-pressure blower, the effectual life who prolongs impeller 17, the noise reduction, casing 14's output flange joint's microperforated panel silencer 21 sets up to the elbow form, the inside cartridge filter 23 and the noise damping piece 24 that sets up of microperforated panel silencer 21 can lead to casing 14's air output volume And the flow distribution, the impact pressure in the housing 14 is relieved, the noise is greatly reduced, the honeycomb-shaped mesh is arranged in the filter cartridge 23, the dust is filtered, the service life of the fan is prolonged, the gas in the air outlet pipe 22 is fully contacted with the silencing layer 25 under the action of the baffle plate and the shunting holes in the shunting plate 26, the effect of further reducing noise is achieved, the vibration generated by the air blower during working is reduced, the service life of the internal elements of the air blower is prolonged, and the working efficiency is improved, the embodiment specifically solves the defect that the existing blower in the prior art generally has larger noise, the noise generated by the resonance between the high-pressure blower and the bottom support frame is one of the main noise sources, especially the vibration noise of the large-scale high-pressure blower is more obvious, and the blower is easy to vibrate during operation, thereby reducing the service life of internal elements.
This practical theory of operation:
referring to the attached drawings 1-5 of the specification, a rotating rod 6 is rotated by holding a handle 9, a bevel gear 7 on the outer wall of the rotating rod 6 is meshed with a steering gear 8, the bevel gear 7 drives the steering gear 8 to rotate, the steering gear 8 drives a fixing plate 5 to rotate in a bottom plate 1, so that the bottom plate 1 is lifted and adjusted in height, then a motor 18 is started, the motor 18 drives a transmission belt to rotate, a driving wheel 20 drives a connecting rod 19 to rotate, the connecting rod 19 rotates to drive a rotating wheel 16 to rotate, an impeller 17 on the outer wall of the rotating wheel 16 rotates along with the rotating wheel to generate wind power, when the impeller 17 compresses air, an airflow laminar boundary layer on the impeller 17 is early converted into turbulent flow, so that eddy flow is separated, a micropunch plate silencer 21 connected with a flange at the output end of a shell 14 is arranged in a bent pipe shape, and a filter cartridge 23 and, the inside honeycombed mesh that is equipped with of cartridge filter 23 filters the dust, and the inside gas of tuber pipe 22 fully contacts with amortization layer 25 under the inside reposition of redundant personnel hole effect of buffer board and flow distribution plate 26.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022606119.7U CN213684604U (en) | 2020-11-11 | 2020-11-11 | Air blower with built-in micro-perforated plate silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022606119.7U CN213684604U (en) | 2020-11-11 | 2020-11-11 | Air blower with built-in micro-perforated plate silencer |
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| Publication Number | Publication Date |
|---|---|
| CN213684604U true CN213684604U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022606119.7U Expired - Fee Related CN213684604U (en) | 2020-11-11 | 2020-11-11 | Air blower with built-in micro-perforated plate silencer |
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| Country | Link |
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| CN (1) | CN213684604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876831A (en) * | 2022-04-26 | 2022-08-09 | 杭州老板电器股份有限公司 | A volute structure and a range hood |
-
2020
- 2020-11-11 CN CN202022606119.7U patent/CN213684604U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876831A (en) * | 2022-04-26 | 2022-08-09 | 杭州老板电器股份有限公司 | A volute structure and a range hood |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210713 |