CN201826265U - Bottom edge sealing and vibration reduction structure of sound barrier - Google Patents
Bottom edge sealing and vibration reduction structure of sound barrier Download PDFInfo
- Publication number
- CN201826265U CN201826265U CN2010205214201U CN201020521420U CN201826265U CN 201826265 U CN201826265 U CN 201826265U CN 2010205214201 U CN2010205214201 U CN 2010205214201U CN 201020521420 U CN201020521420 U CN 201020521420U CN 201826265 U CN201826265 U CN 201826265U
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- sound
- sound absorption
- base
- sound barrier
- adhesive tape
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Abstract
The utility model discloses a bottom edge sealing and vibration reduction structure of a sound barrier. A sound absorption and insulation unit comprises a panel (10), a back plate (11) and a sound absorption and insulation component (13), the sound absorption and insulation component (13) is mounted in a cavity formed by the panel (10) and the back plate (11), the left end and the right end of the sound absorption and insulation unit are fastened in a channel steel upright column (1), the lower end of the sound absorption and insulation unit is connected with supporting channel steel (2), the lower end of the supporting channel steel (2) is abutted to a base (3), a press plate (4) is fixed on the supporting channel steel (2), a decoupling rubber strip (5) is arranged between the bottom surface of the press plate (4) and the base (3) and is provided with a semi-circular rubber pipe (5a), and the semi-circular rubber pipe (5a) is provided with a protruded side plate (5b). The bottom edge sealing and vibration reduction structure of a sound barrier is simple in structure and convenient in installation and detachment, guarantees service lives of relevant components of the sound barrier, simultaneously has effects of reducing vibration in a buffering manner and avoiding sound leakage, and increases sound insulation effect.
Description
Technical field
The utility model belongs to the railroad bridge technical field, relates to a kind of base sealing vibration-proof structure of sound barrier concretely.
Background technology
Sound barrier is to be used for absorbing and the through sonic propagation in noise isolation source, the sound absorption that between noise source and recipient, is provided with and the shielding harness that insulates against sound, and it is placed in the sound shadow region recipient, and propagation of noise is wherein had isolation effect preferably.Developing rapidly of railway produces a large amount of noise pollutions now, and sound barrier takes up an area of few, and fabrication and installation are convenient and swift, and construction investment is suitable, become the important measures of traffic noise pollution control.
Sound wave runs into that sound barrier can reflect, projection and three kinds of phenomenons of diffraction in communication process.Usually we think that sound barrier can stop through sonic propagation, and make system penetrate sound enough decay are arranged, and the influence of projection sound can be ignored.Therefore, the sound absorption effect of sound barrier generally can adopt the noise abatement amount to represent, it has reflected the ability of the above-mentioned two kinds of shielding entrant sounds of sound barrier.Insert a sound barrier between sound source and receiving station, establish the sound barrier endless, sound wave can only be gone over from the top diffraction of barrier, and forms a sound shadow region thereafter, forms a shade just as light is blocked by object.In this sound shadow region, people can feel that noise has obviously weakened, the noise reduction effect of Here it is sound barrier.
Insert a facility between sound source and recipient, sound wave is propagated a significant additional attenuation, thereby weakens the influence of noise in certain zone at recipient place, and such facility is called as sound barrier.This sound barrier is widely used in countries in the world, developing rapidly of railway especially in recent years, and various countries have also carried out many research to the railway sound barrier, have also carried out deep research and a large amount of practices aspect the design and construction of railway sound barrier.
Sound barrier generally includes by the identical sound absorption unit of a plurality of structures and is formed by connecting, described sound absorption unit comprises panel, backboard, the sound absorption assembly, described sound absorption assembly is installed in the cavity that described panel and backboard form, two ends, the left and right sides, described sound absorption unit are fastened in the channel-section steel column, the lower end is connected with supporting steel, this supporting steel lower end and the base knot that offsets, in the use under the effect of extraneous power (especially wind-force), the sound absorption unit of major part can produce and rock, can produce collision and friction between bottom linker and the base, can produce the application life that new noise influences associated components simultaneously, noise also is easy to see through the bonding surface gap between sound absorption unit bottom and the base in addition, influences defening effect.
The utility model content
The purpose of this utility model has provided a kind of simple in structure, easy installation and removal, guarantees that the sound barrier associated components plays buffer shock-absorbing and solves leakage sound problem in the time of application life, improves the base sealing vibration-proof structure that is used for sound barrier of defening effect.
The technical solution of the utility model is as follows:
A kind of base sealing vibration-proof structure of sound barrier, comprise by the identical sound absorption unit of a plurality of structures and being formed by connecting, described sound absorption unit comprises panel, backboard, the sound absorption assembly, described sound absorption assembly is installed in the cavity that described panel and backboard form, two ends, the left and right sides, described sound absorption unit are fastened in the channel-section steel column, the lower end is connected with supporting steel, this supporting steel lower end and the base knot that offsets, on described supporting steel, be fixed with pressing plate, be provided with the decoupling zero adhesive tape between the bottom surface of this pressing plate and the described base, this decoupling zero adhesive tape has semicircle sebific duct, and this semicircle sebific duct has the projection lateral plate.
Adopt said structure,, the decoupling zero adhesive tape is set on the pressing plate by setting up pressing plate between sound absorption unit and the base, when sound barrier is being subjected under the external force situation, adhesive tape can effectively play the purpose of vibration damping, and adhesive tape also forms sealing barrier between base and pressing plate simultaneously, can effectively stop noise to see through.In this structure crucial also be adhesive tape have semicircle sebific duct and on the projection lateral plate, semicircle sebific duct can play good vibration damping and buffering effect and can also reduce the consumption of decoupling zero adhesive tape.The lateral plate of projection can guarantee well to contact with base, solves problem, the raising defening effect of leakage sound.
Described decoupling zero adhesive tape has 2 semicircle sebific ducts.
Described each semicircle sebific duct has 2 symmetric arrangement projection lateral plates.
Described decoupling zero adhesive tape is fixed on the described supporting steel.
Beneficial effect: a kind of simple in structure, easy installation and removal of the utility model guarantees that the sound barrier associated components plays buffer shock-absorbing and solves leakage sound problem in the time of application life, improve defening effect.。
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
The structural representation of Fig. 1 sound barrier;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A place enlarged drawing of Fig. 2;
Fig. 4 is the structural representation of decoupling zero adhesive tape.
The specific embodiment
As Fig. 1,2,3, shown in 4: a kind of base sealing vibration-proof structure of sound barrier, comprise by the identical sound absorption unit of a plurality of structures and being formed by connecting, described sound absorption unit comprises panel 10, backboard 11, sound absorption assembly 13, described sound absorption assembly 13 is installed in the cavity that described panel 10 and backboard 11 formed, two ends, the left and right sides, described sound absorption unit are fastened in the channel-section steel column 1, the lower end is connected with supporting steel 2, these supporting steel 2 lower ends and base 3 knot that offsets, on described supporting steel 2, be fixed with pressing plate 4, be provided with decoupling zero adhesive tape 5 between the bottom surface of this pressing plate 4 and the described base 3, this decoupling zero adhesive tape 5 has semicircle sebific duct 5a, and this semicircle sebific duct 5a has projection lateral plate 5b.
Described decoupling zero adhesive tape 5 has 2 semicircle sebific duct 5a.
Described each semicircle sebific duct 5a has 2 symmetric arrangement projection lateral plate 5b
Described decoupling zero adhesive tape 5 is fixed on the described supporting steel 2.
Claims (4)
1. the base of a sound barrier seals vibration-proof structure, comprise by the identical sound absorption unit of a plurality of structures and being formed by connecting, described sound absorption unit comprises panel (10), backboard (11), sound absorption assembly (13), described sound absorption assembly (13) is installed in the cavity that described panel (10) and backboard (11) formed, two ends, the left and right sides, described sound absorption unit are fastened in the channel-section steel column (1), the lower end is connected with supporting steel (2), this supporting steel (2) lower end and base (3) knot that offsets, it is characterized in that: on described supporting steel (2), be fixed with pressing plate (4), be provided with decoupling zero adhesive tape (5) between bottom surface of this pressing plate (4) and the described base (3), this decoupling zero adhesive tape (5) has semicircle sebific duct (5a), and this semicircle sebific duct (5a) has projection lateral plate (5b).
2. the base of a kind of sound barrier according to claim 1 seals vibration-proof structure, and it is characterized in that: described decoupling zero adhesive tape (5) has 2 semicircle sebific ducts (5a).
3. the base of a kind of sound barrier according to claim 1 seals vibration-proof structure, and it is characterized in that: described each semicircle sebific duct (5a) has 2 symmetric arrangement projection lateral plates (5b)
4. according to the base sealing vibration-proof structure of claim 1,2 or 3 described a kind of sound barriers, it is characterized in that: described decoupling zero adhesive tape (5) is fixed on the described supporting steel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205214201U CN201826265U (en) | 2010-09-08 | 2010-09-08 | Bottom edge sealing and vibration reduction structure of sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205214201U CN201826265U (en) | 2010-09-08 | 2010-09-08 | Bottom edge sealing and vibration reduction structure of sound barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201826265U true CN201826265U (en) | 2011-05-11 |
Family
ID=43964812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205214201U Expired - Lifetime CN201826265U (en) | 2010-09-08 | 2010-09-08 | Bottom edge sealing and vibration reduction structure of sound barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201826265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638343A (en) * | 2016-12-27 | 2017-05-10 | 中国铁道科学研究院节能环保劳卫研究所 | Passive padiator railway metallic sound barrier system |
| WO2021098743A1 (en) * | 2019-11-18 | 2021-05-27 | 中国铁道科学研究院集团有限公司节能环保劳卫研究所 | Sound barrier unit board and sound barrier system |
-
2010
- 2010-09-08 CN CN2010205214201U patent/CN201826265U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638343A (en) * | 2016-12-27 | 2017-05-10 | 中国铁道科学研究院节能环保劳卫研究所 | Passive padiator railway metallic sound barrier system |
| CN106638343B (en) * | 2016-12-27 | 2022-06-10 | 中国铁道科学研究院节能环保劳卫研究所 | Damping type railway metal sound barrier system |
| WO2021098743A1 (en) * | 2019-11-18 | 2021-05-27 | 中国铁道科学研究院集团有限公司节能环保劳卫研究所 | Sound barrier unit board and sound barrier system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |