CN205294564U - Car gives sound insulation - Google Patents
Car gives sound insulation Download PDFInfo
- Publication number
- CN205294564U CN205294564U CN201521054418.7U CN201521054418U CN205294564U CN 205294564 U CN205294564 U CN 205294564U CN 201521054418 U CN201521054418 U CN 201521054418U CN 205294564 U CN205294564 U CN 205294564U
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- Prior art keywords
- sound
- car
- sound insulation
- drag reduction
- absorbing layer
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The utility model relates to an elevator technical field especially relates to a car gives sound insulation. Including the car, set up to be in respectively the drag reduction of car top and bottom gives sound insulation and personally experiences sth. Part of the body, the drag reduction gives sound insulation and personally experiences sth. Part of the body to the tapered body, the drag reduction give sound insulation the body the cross -section radius along by the car is to keeping away from the direction of car reduces gradually. Reduced in the perpendicular to elevator operation direction area of contact of elevator car and air greatly, reduced the aerodynamic drag of car operation in -process, thus reduced the windage noise and the eddy current crack of car. The drag reduction gives sound insulation the body by including in proper order to interior outward: drag reduction layer, shock attenuation chamber and sound absorbing layer, sound absorbing material packs in the sound absorbing layer, the drag reduction layer is made by steel plate material, the shock attenuation intracavity is provided with fixed connection the drag reduction layer with the buffering strip of sound absorbing layer is formed with between two adjacent buffering strips and inhales the vocal cords. Fine the noise reduction effect has.
Description
Technical field
This utility model relates to a kind of elevator technology field, particularly relates to a kind of sound insulation car.
Background technology
Noise of elevator is mainly by air drag and what mechanical vibration caused. Producing very big windage when elevator up and down reciprocatingly runs in hoistway, these resistances produce windage noise with car effect; Sharply increasing additionally, due to air velocity, air-flow produces very big separation and discontinuous whirlpool at envelope afterbody, and this discontinuous whirlpool constantly comes off and evolution can make the pressure in vortex field produce big ups and downs generation eddy current crack. Many noises of elevator are caused by vibration. In order to ensure the comfortableness of lift car passenger, lift car is carried out noise reduction by necessity.
Utility model content
Technical purpose of the present utility model is in that to provide a kind of sound insulation car that can be good at reducing noise, to improve the ride quality of elevator passenger.
The technical solution of the utility model is as follows: a kind of sound insulation car, it is characterised in that: include car, be separately positioned on the drag reduction sound insulation body of described car top and bottom; Described drag reduction sound insulation body is cone body, and the section radius of described drag reduction sound insulation body is gradually reduced along by described car to the direction away from described car. Substantially reduce and be perpendicular on elevator traffic direction lift car and the contact area of air, reduce the air drag in described cage operation process, windage noise when therefore can reduce described cage operation and eddy current crack. Described drag reduction sound insulation body includes from outside to inside successively: drag reduction layer, damping chamber and sound absorbing layer; Filling sound-absorbing material in described sound absorbing layer, described drag reduction layer is made up of steel plate materials, and described damping intracavity is provided with the fixing buffer bar connecting described drag reduction layer and described sound absorbing layer, is formed with sound-absorbing band between adjacent two buffer bar. Steel plate materials has smooth surface, it is possible to reduce in running process of elevator the resistance run into, thus reduce vibrations that thus resistance brings and and then reduce to have and change the noise that vibrations cause;The additionally close structure of steel plate materials, has the effect of sound insulation, is directly completely cut off outside the casing of car by a part of noise. The buffer bar of described damping intracavity, it is possible to weaken the vibrations absorbing the air drag that is subject to of described drag reduction layer and cause. The sound-absorbing band formed between adjacent buffer bar, when a part of sound is propagated in sound-absorbing band and buffer bar friction, is changed into heat energy by acoustic energy, and acoustic energy is depleted absorption. Remain unabsorbed sound, enter sound absorbing layer and digested further.
As preferably, described buffer bar includes elastic buffer body and is set in the resilient sleeve that described elastic buffer is external.
As preferably, the narrow width at its two ends of waist width ratio of described elastic buffer body so that form elastic telescopic space between described elastic buffer body and described resilient sleeve. Described elastic buffer body and described resilient sleeve add the elasticity of buffer bar on the one hand, thus improve buffering effect, on the other hand, described elastic telescopic space add exposure in atmosphere with the contact area of sound wave, the a part of acoustic energy of absorption can be improved, have the effect of sound-absorbing.
As preferably, described sound absorbing layer includes the high-efficiency sound-absorbing layer near described damping chamber end and the complete sound absorbing layer near described car end. Described high efficiency absorbed layer, near the approach axis of sound, assimilates sound in the very first time with the highest efficiency. Described complete sound absorbing layer has bigger space, for the catapepsis of sound is absorbed.
As preferably, described car side wall arranges sound absorption cavity, fills sound-absorbing material in described sound absorption cavity. The sound absorption cavity of described sidewall absorbs in cage operation process, car side wall and the fricative noise of access inner air flow.
As preferably, described sound absorption cavity is two ends thick cavitys thin, middle. Increase sound reflection in described sound absorption cavity, to increase the time of staying, improve sound-absorbing effect.
As preferably, described sound absorption cavity outer wall is coated with sound reflection material, forms reflecting surface. A part of sound is directly reflected isolation outside car by described reflecting surface.
A kind of lift car sound-insulating structure disclosed in this utility model has the advantages that the profile of described drag reduction sound insulation body substantially reduces the contact area of described elevator car roof and bottom and air, reduce the air drag in described cage operation process, windage noise when therefore reducing cage operation and eddy current crack. Multiple functional layers of described drag reduction sound insulation body, are distributed drag reduction, damping and puigging along direction of sound propagation, it is possible to the effective noise reducing car.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of sound insulation car.
The partial enlarged drawing of label A in Fig. 2 Fig. 1.
Wherein, 1-car, 2-drag reduction sound insulation body, 11-sidewall, 21-drag reduction layer, 111-sound absorption cavity, 221-buffer bar, 222-sound-absorbing band, 1111-reflecting surface, 2211-elastic buffer body, 2212-resilient sleeve, 2213-elastic telescopic space.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail. As it is shown in figure 1, a kind of sound insulation car, including car 1, the drag reduction sound insulation body 2 being separately positioned on car top and bottom; The cone body of drag reduction sound insulation body, the cross sectional radius of drag reduction sound insulation body is gradually reduced along by car 1 to the direction away from car 1. Therefore substantially reduce and be perpendicular on elevator traffic direction lift car and the contact area of air, reduce the air drag in described cage operation process, thus when reducing cage operation windage noise and eddy current crack.
Drag reduction sound insulation body 2 includes from outside to inside successively: drag reduction layer 21, damping chamber and sound absorbing layer. Drag reduction layer is made up of steel plate materials. Steel plate materials has smooth surface, can be greatly reduced the resistance run in running process of elevator in conjunction with tapered surface configuration, thus reduce vibrations that thus resistance brings and and then reduce to have and change the noise that vibrations cause; The additionally close structure of steel plate materials, has the effect of sound insulation, it is possible to directly completely cut off outside the casing of car by a part of noise. Damping intracavity is provided with the fixing buffer bar 221 connecting drag reduction layer 21 and sound absorbing layer, is formed with sound-absorbing band 222 between adjacent two buffer bar 221. Buffer bar 221 includes elastic buffer body 2211 and the resilient sleeve 2212 being set in outside elastic buffer body 2211. The narrow width at its two ends of waist width ratio of elastic buffer body 2211 so that form elastic telescopic space 2213 between elastic buffer body 2211 and resilient sleeve 2212. The waist width ratio two ends of elastic buffer body 2211 are narrow so that elastic buffer body 2211 has certain elasticity along its vertical direction, it is possible to weaken the vibrations absorbing the air drag that is subject to of drag reduction layer 21 and cause. Further, rub with buffer bar 221 when the sound-absorbing band 222 that a part of sound is formed between adjacent buffer bar 221 is propagated, also have partial sound to enter in elastic telescopic space 2213 to rub with resilient sleeve 2212 and elastic buffer body 2211 simultaneously, being changed into heat energy by acoustic energy, acoustic energy is depleted absorption. Remain unabsorbed sound, enter the sound absorbing layer of internally positioned layer. Sound absorbing layer includes the high-efficiency sound-absorbing layer 1 near damping chamber end and the complete sound absorbing layer 2 near car 1 end. High-efficiency sound-absorbing layer 1 top closest to tapered drag reduction sound insulation body 2 above receives air drag in running process of elevator and impacts maximum part, therefore the good acoustical cotton of filling capacity in high-efficiency sound-absorbing layer 1, it is possible to fall the sound of this part in very first time efficient absorption. Further, the complete sound absorbing layer 2 relative efficiency sound absorbing layer 1 being positioned below occupies bigger volume, it is possible to fully absorb the sound that the high efficiency absorbed layer 231 of the damping chamber by side and top enters.
The sidewall 11 of car 1 arranges sound absorption cavity 111, fills acoustical cotton as sound-absorbing material in sound absorption cavity 11. Sound absorption cavity 111 is two ends thick cavitys thin, middle, and this shape and structure can increase sound reflection in sound absorption cavity 111, thus increasing the time of staying, improves sound-absorbing effect. It addition, sound absorption cavity 111 outer wall is coated with sound reflection material, form reflecting surface 1111. A part of sound is directly reflected isolation outside car by reflecting surface 1111.
Although being described in conjunction with the accompanying embodiment of the present utility model, but those of ordinary skill in the art can make various deformation or amendment within the scope of the appended claims.
Claims (7)
1. a sound insulation car, it is characterised in that: include car, be separately positioned on drag reduction sound insulation body (2) of described car top and bottom; Described drag reduction sound insulation body (2) is cone body, and the section radius of described drag reduction sound insulation body (2) is gradually reduced along by described car to the direction away from described car; Described drag reduction sound insulation body (2) includes from outside to inside successively: drag reduction layer (21), damping chamber and sound absorbing layer; Sound-absorbing material is filled in described sound absorbing layer, described drag reduction layer (21) is made up of steel plate materials, described damping intracavity is provided with the fixing buffer bar (221) connecting described drag reduction layer (21) and described sound absorbing layer, is formed with sound-absorbing band (222) between adjacent two buffer bar (221).
2. a kind of sound insulation car according to claim 1, it is characterised in that: described buffer bar (221) includes elastic buffer body (2211) and is set in described elastic buffer body (2211) resilient sleeve (2212) outward.
3. a kind of sound insulation car according to claim 2, it is characterized in that: the narrow width at its two ends of waist width ratio of described elastic buffer body (2211) so that between described elastic buffer body (2211) and described resilient sleeve (2212), form elastic telescopic space (2213).
4. a kind of sound insulation car according to claim 1, it is characterised in that: described sound absorbing layer includes the high-efficiency sound-absorbing layer near described damping chamber end and the complete sound absorbing layer near described car end.
5. a kind of sound insulation car according to claim 1 or 2 or 3 or 4, it is characterised in that: described car side wall (11) arranges sound absorption cavity (111), fills sound-absorbing material in described sound absorption cavity (111).
6. a kind of sound insulation car according to claim 5, it is characterised in that: described sound absorption cavity (111) thick cavity thin for two ends, middle.
7. a kind of sound insulation car according to claim 5, it is characterised in that: described sound absorption cavity (111) outer wall is coated with sound reflection material, forms reflecting surface (1111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521054418.7U CN205294564U (en) | 2015-12-17 | 2015-12-17 | Car gives sound insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521054418.7U CN205294564U (en) | 2015-12-17 | 2015-12-17 | Car gives sound insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205294564U true CN205294564U (en) | 2016-06-08 |
Family
ID=56432097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521054418.7U Expired - Fee Related CN205294564U (en) | 2015-12-17 | 2015-12-17 | Car gives sound insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205294564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874780A (en) * | 2020-07-31 | 2020-11-03 | 康力电梯股份有限公司 | High-speed elevator decompression kuppe |
-
2015
- 2015-12-17 CN CN201521054418.7U patent/CN205294564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874780A (en) * | 2020-07-31 | 2020-11-03 | 康力电梯股份有限公司 | High-speed elevator decompression kuppe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Car gives sound insulation Effective date of registration: 20180326 Granted publication date: 20160608 Pledgee: Zhejiang Tailong commercial bank Taizhou branch of Limited by Share Ltd Pledgor: ZAO ELEVATOR LIMITED COMPANY Registration number: 2018330000072 |
|
| 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: 20160608 Termination date: 20181217 |