CN219099838U - Sound barrier capable of preventing wind and sand - Google Patents
Sound barrier capable of preventing wind and sand Download PDFInfo
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- CN219099838U CN219099838U CN202223237752.9U CN202223237752U CN219099838U CN 219099838 U CN219099838 U CN 219099838U CN 202223237752 U CN202223237752 U CN 202223237752U CN 219099838 U CN219099838 U CN 219099838U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The utility model belongs to the field of sound barriers, and particularly discloses a sound barrier for preventing wind and sand, which comprises H-shaped steel at two ends and a plurality of sound insulation plates assembled between the H-shaped steel, wherein the sound insulation plates comprise a shell and a panel facing a noise source, a sound absorption layer is arranged in the shell, a plurality of spaced sound absorption holes are formed in the panel, each sound absorption hole is rectangular, the sound absorption holes are arranged in a rectangular array mode, and the sound absorption holes are respectively communicated with a hollow cavity of the shell; the sound-absorbing holes are obliquely arranged, the oblique direction is downward, the included angle between the sound-absorbing holes and the vertical plane of the panel is 20-60 degrees, and the upper part of the sound-absorbing holes forms a shielding plate after the sound-absorbing holes are opened; the panel below the sound absorption holes is a concave cambered surface groove; the grooves are horizontally arranged and parallel to one row of sound absorption holes; baffles are arranged at two ends of the groove; mounting holes are formed in the baffles on the two sides, and an automatic shaking device is arranged between the two baffles. The problem of traditional sound barrier inhale sound Kong Xixiao is blocked by sand blown by the wind easily, and the clearance is difficult, influences the sound absorbing effect is solved.
Description
Technical Field
The utility model belongs to the technical field of sound barriers, and particularly relates to a sound barrier capable of preventing wind and sand.
Background
The sound barrier is a noise reduction tool and is widely used at two ends of a highway, an overhead and a train track; the sound-absorbing material is filled in the hollow cavity of the sound-insulating panel, and the sound-absorbing holes are formed in the surface facing the noise area, so that the purposes of blocking the sound transmission path and absorbing sound waves are achieved.
The widely used metal shutter sound barrier has the advantages that the sound absorption holes of the front metal plate are parallel sound absorption holes which are downward and are similar to shutters, the aperture ratio is more than 25%, rainwater and dew can be prevented from entering the sound absorption holes with downward apertures, and the middle sound absorption material is protected; the sound insulation device has the advantages that the sound insulation amount is large: the average sound insulation is 36dB, and the sound absorption coefficient is high: the average sound absorption coefficient is 0.85, and the water resistance, heat resistance and ultraviolet resistance are also realized, so that the performance or quality abnormality cannot be reduced due to the temperature change of rainwater.
The sand wind in northwest area is big, uses traditional metal shutter sound barrier, owing to inhale sound Kong Xixiao, is blocked by sand wind easily, and sand wind can enter into the acoustic celotex board inside, is difficult for the clearance, has reduced the sound absorbing effect of sound barrier, has increased the clearance degree of difficulty of sound barrier.
Disclosure of Invention
The utility model solves the technical problems that: traditional sound barrier inhales Kong Xixiao and is blocked by sand wind easily, and the clearance is difficult, influences the sound absorbing effect.
The technical scheme is as follows: in order to solve the technical problems, the utility model adopts the following technical scheme:
the sound barrier for resisting wind and sand comprises H-shaped steel at two ends and a plurality of sound insulation plates assembled between the H-shaped steel, wherein the sound insulation plates comprise a shell and a panel facing a noise source, a sound absorption layer is arranged in the shell, a plurality of spaced sound absorption holes are formed in the panel, each sound absorption hole is rectangular, the sound absorption holes are arranged in a rectangular array mode, and the sound absorption holes are respectively communicated with a hollow cavity of the shell; the sound-absorbing holes are obliquely arranged, the oblique direction is downward, the included angle between the sound-absorbing holes and the vertical plane of the panel is 20-60 degrees, and the upper part of the sound-absorbing holes forms a shielding plate after the sound-absorbing holes are opened;
the panel below the sound absorption holes is a concave cambered surface groove; the grooves are horizontally arranged and parallel to one row of sound absorption holes; baffles are arranged at two ends of the groove; mounting holes are formed in the baffles on the two sides, and an automatic shaking device is arranged between the two baffles.
Further, the sand blocking device comprises a supporting rod fixed between two mounting holes, a plurality of rolling cylinders are arranged on the supporting rod, and soft filaments are arranged on the rolling cylinders; the soft filaments cover the sound absorbing holes.
Further, the sand blocking device comprises an elastic plate, hard bristles and a tension spring; tension springs are arranged on the two mounting holes, and an elastic plate is arranged between the two tension springs; the upper end of the elastic plate is provided with hard bristles; the hard brush hair shields the sound absorbing holes.
Further, the elastic plate is a hollowed-out plate woven by metal wires.
Further, the density of the hard bristles is 30-60 roots/cm 2 。
Further, an L-shaped connecting piece is arranged in the mounting hole, the rear end head of the L-shaped connecting piece is fixed in the mounting hole, and tension springs are fixed at two ends of the horizontal rod at the front end of the L-shaped connecting piece and are respectively connected with two sides of the elastic plate.
Further, the panel and the shell are connected through a buckle or through bolts and nuts, and the joint of the panel and the shell is provided with sealant or polyurethane foaming glue for bonding.
The beneficial effects are that: compared with the prior art, the utility model has the following advantages:
the utility model has simple and novel structure, not only can prevent wind and sand from entering the sound absorption hole, but also skillfully utilizes the natural conditions of large wind and less rainwater in the area, and is provided with a member which can not only shield the sound absorption hole but also automatically shake off sand under the action of wind power. The difficulty of subsequent cleaning is reduced, the method has stronger regional pertinence, and the blank that the special region lacks an adaptive sound barrier in the existing market is overcome. The technical problem that sand is easy to accumulate in the sound absorbing holes due to large wind sand in northwest areas of the traditional shutter sound barrier is solved, an arc-shaped groove is formed below the sound absorbing holes, a rolling barrel capable of rotating along with wind is arranged in the groove, soft filaments on the rolling barrel not only can prevent the sand from entering the sound absorbing holes, but also can shake off the sand on the soft filaments after the rolling barrel rotates along with wind; or utilize the extension spring to fix the elastic plate, hard brush hair on the elastic plate can shelter from and inhale the sound hole and prevent sand and get into and inhale the sound hole, and the elastic plate can rock from top to bottom under the windy weather, and the sand of gathering on hard brush hair after rocking is tremble.
Drawings
FIG. 1 is a front elevational view of the overall structure of the present utility model;
FIG. 2 is an exploded view of the structure of the baffle;
FIG. 3 is a partial block diagram of a baffle in accordance with the first embodiment;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is a schematic view showing a part of the structure of a sound insulation board in the second embodiment;
FIG. 6 is a cross-sectional view taken along the direction B-B in FIG. 5;
fig. 7 is a cross-sectional view taken along the direction C-C in fig. 5.
Detailed Description
The utility model will be further illustrated with reference to specific examples, which are carried out on the basis of the technical solutions of the utility model, it being understood that these examples are only intended to illustrate the utility model and are not intended to limit the scope thereof.
As shown in figures 1 and 2, the wind and sand resistant sound barrier comprises H-shaped steel 1 at two ends and a plurality of sound insulation plates 2 assembled between the H-shaped steel 1, wherein each sound insulation plate 2 comprises a shell 21 and a panel 22 facing a noise source, a sound absorption layer 23 is arranged in the shell 21, a plurality of spaced sound absorption holes 3 are formed in the panel 22, the sound absorption holes 3 are arranged in a rectangular array mode according to design requirements, the sound absorption holes 3 are respectively communicated with a hollow cavity of the shell 21, each sound absorption hole 3 is rectangular, the length range of the sound absorption holes is 50-200 mm, the width range of the sound absorption holes is 30-100mm, and the distance between the upper adjacent sound absorption holes 3 and the lower adjacent sound absorption holes 3 is 30-100mm. Specifically, the sound insulation board is determined according to the design requirement of the sound insulation board; in order to prevent erosion of rain water, dust and other erosion objects, the sound absorbing holes 3 are obliquely arranged, the oblique direction is downward, namely, the oblique direction is based on the vertical line of the panel 22, and the specific oblique angle range of the sound absorbing holes 3 on the panel 22 is as follows: the sound absorbing holes 3 are inclined by 20-60 degrees based on the vertical line on the panel 22 (namely, the included angle between the sound absorbing holes 3 and the vertical plane of the panel 22 is 20-60 degrees), and then the shutter-like shielding plate is formed after the sound absorbing holes 3 are opened.
In the first embodiment, as shown in fig. 3 and 4, the lower panel 22 of the sound absorbing hole 3 is a concave arc-shaped groove 4; the grooves 4 are horizontally arranged and parallel to one row of sound absorbing holes 3; the baffle 5 is formed without recessing the panels 22 at both ends of the channel 4. Mounting holes 6 are formed in the baffle plates 5 on two sides, a supporting rod 7 is arranged between the two mounting holes 6 (the end head of the supporting rod 7 is Z-shaped), a plurality of rolling cylinders 8 are arranged on the supporting rod 7, and soft filaments 9 are arranged on the rolling cylinders 8; the soft filaments 9 cover the sound absorbing holes 3. The length of the rolling barrel 8 in the embodiment is smaller than that of the supporting rod 7 after being arranged, so that the rolling barrel 8 can conveniently shake and roll along with wind, but the length of the rolling barrel 8 can completely cover one row of sound absorbing holes 3. In order to facilitate the rotation of the rolling cylinders 8, the utility model chooses to sleeve a plurality of rolling cylinders 8 on the supporting rod 7 instead of one rolling cylinder 8; the rolling cylinder 8 is of a hollow thin-wall structure, so that the rolling cylinder is lighter in weight and convenient to rotate.
The working principle of the embodiment is as follows: because the wind sand in northwest areas is large, sand is easy to accumulate in the sound absorbing holes, the concave groove 4 is arranged below the sound absorbing holes 3, the rolling barrel 8 capable of rotating along with wind is arranged in the groove 4, the soft filaments 9 on the rolling barrel 8 can not only prevent the sand from entering the sound absorbing holes, but also enable the sand on the soft filaments 9 to shake off easily after the rolling barrel 8 rotates along with wind.
In the second embodiment, as shown in fig. 5,6 and 7, unlike in the first embodiment, tension springs 10 are installed in the two installation holes 6 of the present embodiment,an elastic plate 11 is arranged between the two tension springs 10, the elastic plate 11 is a hollowed-out plate woven by metal wires, and hard bristles 12 are arranged at the upper end of the elastic plate 11; the hard bristles 12 block the sound absorbing holes 3. The existing PP material is selected as the hard brush hair 12, so that the density is not too dense, the sound absorption is affected, and the wind and sand are easy to accumulate; the hard bristles are fixed on the elastic plate 11 by bonding or braiding; the density of the hard bristles 12 is 30-60 bristles/cm 2 。
The working principle of the embodiment is as follows: unlike the first embodiment, the present embodiment fixes the elastic plate 11 by the tension spring 10, and the hard brush hair 12 on the elastic plate 11 can block the sound absorbing hole 3 to prevent sand from entering the sound absorbing hole 3. The elastic plate 11 can shake up and down in windy weather, sand accumulated on the hard brush hair 12 after shaking is shaken off, and the elastic plate 11 is also a hollowed-out result, so that the shaking off of the sand is facilitated.
In order to ensure that the elastic plate 11 is in a horizontal state, an L-shaped connecting piece 13 is arranged in the mounting hole 6, the rear end head of the L-shaped connecting piece 13 is fixed in the mounting hole 6, and two ends of the horizontal rod at the front end are respectively fixed with a tension spring 10 which is respectively connected with two sides of the elastic plate 11, so that the elastic plate 11 is in a horizontal state.
In both the first and second embodiments, the sand blocking device is arranged between the two baffles 5, so that the sound absorbing holes can be blocked, and sand can be automatically shaken off under the action of wind force.
As shown in fig. 2, the panel 22 and the housing 21 are connected by a buckle or by a bolt and a nut, and the joint of the panel 22 and the housing 21 is provided with the sealant 14 or polyurethane foam for bonding to play a role in further sound insulation, and the panel 22 and the housing 21 are made of aluminum plates, so that the panel has the advantages of light weight, corrosion resistance, water resistance and sun resistance. The sound absorbing holes 3 and the grooves 4 on the face plate 22 are formed in one step by a punching process. The bottom of the H-shaped steel 1 is provided with a flange end with a mounting hole, and the flange end can be fixed on a preset anti-pulling base through bolts and nuts.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (7)
1. A sound barrier for preventing wind and sand, characterized by: the sound insulation plate (2) comprises a shell (21) and a panel (22) facing a noise source, wherein the sound insulation plate (2) comprises H-shaped steel (1) at two ends and a plurality of sound insulation plates (2) assembled between the H-shaped steel (1), a sound absorption layer (23) is arranged in the shell (21), a plurality of spaced sound absorption holes (3) are formed in the panel (22), each sound absorption hole (3) is rectangular, the sound absorption holes (3) are arranged in a rectangular array mode, and the sound absorption holes (3) are respectively communicated with a hollow cavity of the shell (21); the sound absorption holes (3) are obliquely arranged, the oblique direction is downward, the included angle between the sound absorption holes (3) and the vertical surface of the panel (22) is 20-60 degrees, and the upper part of the sound absorption holes (3) forms a shielding plate after being opened;
the lower panel (22) of the sound absorption hole (3) is a concave cambered surface groove (4); the grooves (4) are horizontally arranged and parallel to one row of sound absorbing holes (3); baffles (5) are arranged at two ends of the groove (4); mounting holes (6) are formed in the baffle plates (5) on the two sides, and a sand blocking device is arranged between the two baffle plates (5).
2. A sound barrier against wind sand as claimed in claim 1, wherein: the sand blocking device comprises a supporting rod (7) fixed between two mounting holes (6), a plurality of rolling cylinders (8) are arranged on the supporting rod (7), and soft filaments (9) are arranged on the rolling cylinders (8); the soft filaments (9) cover the sound absorbing holes (3).
3. A sound barrier against wind sand as claimed in claim 1, wherein: the sand blocking device comprises an elastic plate (11), hard bristles (12) and a tension spring (10); tension springs (10) are arranged on the two mounting holes (6), and an elastic plate (11) is arranged between the two tension springs (10); the upper end of the elastic plate (11) is provided with hard bristles (12); the hard brush hair (12) shields the sound absorbing hole (3).
4. A sound barrier against wind and sand as claimed in claim 3, wherein: the elastic plate (11) is a hollowed-out plate woven by metal wires.
5. A sand-blast resistant sound as claimed in claim 3A barrier, characterized in that: the density of the hard bristles (12) is 30-60 roots/cm 2 。
6. A sound barrier against wind and sand as claimed in claim 3, wherein: an L-shaped connecting piece (13) is arranged in the mounting hole (6), the rear end head of the L-shaped connecting piece (13) is fixed in the mounting hole (6), and tension springs (10) are fixed at two ends of the front horizontal rod and are respectively connected with two sides of the elastic plate (11).
7. A sound barrier against wind sand as claimed in claim 1, wherein: the panel (22) is connected with the shell (21) through a buckle or through bolts and nuts, and the joint of the panel (22) and the shell (21) is provided with sealant (14) or polyurethane foam adhesive for bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223237752.9U CN219099838U (en) | 2022-12-02 | 2022-12-02 | Sound barrier capable of preventing wind and sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223237752.9U CN219099838U (en) | 2022-12-02 | 2022-12-02 | Sound barrier capable of preventing wind and sand |
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| Publication Number | Publication Date |
|---|---|
| CN219099838U true CN219099838U (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223237752.9U Active CN219099838U (en) | 2022-12-02 | 2022-12-02 | Sound barrier capable of preventing wind and sand |
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| CN (1) | CN219099838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117222208A (en) * | 2023-11-08 | 2023-12-12 | 深圳创芯技术股份有限公司 | Industrial power supply |
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2022
- 2022-12-02 CN CN202223237752.9U patent/CN219099838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117222208A (en) * | 2023-11-08 | 2023-12-12 | 深圳创芯技术股份有限公司 | Industrial power supply |
| CN117222208B (en) * | 2023-11-08 | 2024-03-15 | 深圳创芯技术股份有限公司 | Industrial power supply |
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