CN217810596U - Track sound barrier - Google Patents
Track sound barrier Download PDFInfo
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- CN217810596U CN217810596U CN202221907127.8U CN202221907127U CN217810596U CN 217810596 U CN217810596 U CN 217810596U CN 202221907127 U CN202221907127 U CN 202221907127U CN 217810596 U CN217810596 U CN 217810596U
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Abstract
The utility model provides a track sound barrier sets up in the track both sides for absorb and block the wheel rail noise, a serial communication port, include: at least one sound barrier main body, including a sound absorbing layer, a sound transmitting layer and a waterproof layer; and the mounting plate is arranged outside the track and used for mounting the sound barrier, wherein the mounting plate is provided with mounting grooves corresponding to the sound barrier main body in quantity towards the surface of the track, the sound barrier main body is arranged in the mounting grooves, the waterproof layer is arranged on the surface of the sound absorption layer towards the mounting plate, the sound transmission layer is wrapped outside the sound absorption layer, and the edge of the sound transmission layer is fixedly connected on the surface of the waterproof layer towards the mounting plate. The sound barrier main part overall structure is simple, and the preparation is convenient, need not to use various steel sheet or aluminum plate shutoff mounting groove, can effectively prolong the life of sound barrier, and the quality is lighter, and manufacturing cost is lower, reduces processing, construction cycle, further reduces manpower and time cost.
Description
Technical Field
The utility model belongs to the technical field of the track is fallen and is fallen, concretely relates to track sound barrier.
Background
In recent years, the rapid development of rail transit brings great convenience to people going out, but meanwhile, the noise pollution caused by the rapid development of rail transit also becomes a disturbing social problem.
The sound barriers are arranged on two sides of the track, which is the main sound insulation and noise reduction measure adopted at present, and the sound barriers are inserted between a sound source and a receiver, so that sound waves are transmitted to have obvious additional attenuation, the noise influence in a certain area where the receiver is located is weakened, and the influence of track traffic noise on nearby residents can be reduced to a certain extent.
The common rail sound barrier mainly comprises a steel structure upright post and a sound absorption and insulation plate, wherein the upright post is a main stressed member of the sound barrier and is fixed on an embedded steel plate at the edge of a rail through bolts or welding; the sound absorption and insulation board is a main sound insulation and absorption component and is fixed in the upright post groove through a high-strength spring clip to form a sound barrier. The existing sound absorption and insulation board mainly has two manufacturing modes: 1. the sound absorption and insulation plate is internally made of sound absorption materials, glass fiber cloth is wrapped outside the sound absorption and insulation plate, the wrapped sound absorption materials are placed in the sound barrier grooves which are pressed in advance, and then color steel plates or aluminum plates with sound transmission holes which are prefabricated in advance are welded and blocked in the sound barrier grooves through rivet pulling or argon arc welding; 2. glass fiber cloth is directly adhered on the color steel plate or the aluminum plate with various sound transmission holes, and then the sound absorption material is blocked in the groove of the sound barrier.
The sound barrier produced by the two manufacturing methods has heavy quality, more raw material loss, uneven appearance flatness, long processing and construction period and increased time and labor cost. In addition, the adhesive easily causes silting up to the sound-transmitting holes on the color steel plate or the aluminum plate and the micropores on the sound-absorbing material, so that the sound transmission rate is reduced, the aperture through which noise passes is reduced, the noise reduction effect is influenced, the color steel plate or the aluminum plate is extremely easy to corrode and age, the service life of the sound barrier is reduced, and the later maintenance and replacement cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a go on for solving above-mentioned problem, aim at provides a track sound barrier, the utility model discloses a following technical scheme:
the utility model provides a track sound barrier sets up in the track both sides for absorb and block the wheel rail noise, a serial communication port, include: at least one sound barrier main body, including a sound absorbing layer, a sound transmitting layer and a waterproof layer; and the mounting plate is arranged outside the track and used for mounting the sound barrier, wherein the mounting plate is provided with mounting grooves corresponding to the sound barrier main body in quantity towards the surface of the track, the sound barrier main body is arranged in the mounting grooves, the waterproof layer is arranged on the surface of the sound absorption layer towards the mounting plate, the sound transmission layer is wrapped outside the sound absorption layer, and the edge of the sound transmission layer is fixedly connected on the surface of the waterproof layer towards the mounting plate.
The utility model provides a track sound barrier can also have such technical characteristic: wherein, the sound-transmitting layer adopts a fabric material with a surface coating.
The utility model provides a track sound barrier can also have such technical characteristic: wherein the surface of the sound-transmitting layer is also subjected to silver plating.
The utility model provides a track sound barrier can also have such technical characterstic: wherein, the sound transmission layer is provided with sound transmission holes which are uniformly distributed in a grid shape.
The utility model provides a track sound barrier can also have such technical characteristic: wherein the sound-penetrating hole has a length of 1 mm, a width of 0.8 mm and a depth of 0.52 mm.
The utility model provides a track sound barrier can also have such technical characteristic: wherein the volume weight of the sound absorption layer is 80g/m 3 The mineral wool.
The utility model provides a track sound barrier can also have such technical characteristic: wherein, the length of sound absorbing layer is 2000mm, and width is 230mm, and thickness is 100mm.
The utility model provides a track sound barrier can also have such technical characteristic: the width of the waterproof layer is smaller than or equal to that of the sound absorption layer, and the length of the waterproof layer is smaller than or equal to that of the sound absorption layer.
The utility model provides a track sound barrier can also have such technical characteristic, still includes: the mounting bracket comprises a bottom plate arranged beside the track and a pair of vertical columns which are parallel to each other and connected to the bottom plate, and the mounting plate is mounted between the two vertical columns.
Utility model with the functions and effects
According to the utility model discloses a track sound barrier, this track sound barrier's sound barrier main part is installed on the mounting panel in the mounting groove towards track one side, and the wheel rail noise when can the effective absorption train travel, noise abatement pollutes.
The sound barrier main part includes sound absorbing layer, sound transmission layer and waterproof layer, and the waterproof layer setting is on the surface of sound absorbing layer towards the mounting panel, and sound transmission layer parcel is in the outside on sound absorbing layer and edge fixed connection on the waterproof layer towards the mounting panel on the surface for need not direct sticky fixed between sound transmission layer and the sound absorbing layer, can effectively improve the sound transmission rate on sound transmission layer, reach better noise reduction.
In addition, the sound-transmitting layer and the waterproof layer are connected at the sound-absorbing layer towards the mounting plate, namely, one side of the mounting plate back to the steel rail, so that the waterproof layer does not influence the transmission of noise generated on the track side while blocking rainwater, and the waterproof layer is more smooth and attractive in appearance.
The sound barrier main part overall structure is simple, and the preparation is convenient, need not to use various steel sheet or aluminum plate shutoff mounting groove, can effectively prolong the life of sound barrier, and the quality is lighter, and manufacturing cost is lower, reduces processing, construction cycle, further reduces manpower and time cost.
Drawings
Fig. 1 is a front view of a rail sound barrier in an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the rail sound barrier of the present invention;
fig. 3 is a side sectional view of a rail sound barrier in an embodiment of the present invention;
fig. 4 is a schematic view of the sound barrier body in the embodiment of the present invention in layers;
fig. 5 is a schematic perspective view of a rail sound barrier and a rail according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a rail sound barrier and a rail in an embodiment of the invention; and
fig. 7 is a flow chart of the manufacturing process of the rail sound barrier according to the embodiment of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments and drawings are combined to specifically describe the track sound barrier of the present invention. The parts not described in detail in the examples are well known in the art.
< example >
Fig. 1 is a front view of the rail sound barrier in the embodiment of the present invention, fig. 2 is a top view of the rail sound barrier in the embodiment of the present invention, and fig. 3 is a side sectional view of the rail sound barrier in the embodiment of the present invention.
As shown in fig. 1 to 3, the present embodiment provides a rail sound barrier 100 including a sound barrier main body 10, a mounting plate 20, and a mounting bracket 30.
The mounting frame 30 includes a base plate 31 and a pair of posts 32 parallel to each other. In this embodiment, the base plate 31 is fixed to the outer side of the rail by bolts, and the upright 32 is connected to the base plate 31 by welding. The upright column 32 is i-shaped, both sides of the upright column are provided with limit grooves 322 matched with the mounting plate 20, and both ends of the mounting plate 20 are respectively clamped with the limit grooves 322 on the corresponding sides. A rubber strip is arranged between the inner surface of one side of the limiting groove 322 close to the rail and the mounting plate 20, and the rubber strip is used for reducing the collision and vibration between the mounting plate 20 and the upright post 32 and avoiding the generation of secondary noise; the side of the limiting groove 322 far from the rail is clamped and fixed with the mounting plate 20 through a wood wedge, so that the mounting plate 20 is stably mounted between the two upright posts 32.
The surface of the mounting plate 20 facing the rail 1 has a corresponding number of mounting grooves 21 to the sound barrier body 10. The mounting groove 21 is disposed in a horizontal direction, and has a shape and size adapted to the sound barrier body 10.
Fig. 4 is a schematic view of the sound barrier main body in the embodiment of the present invention.
The sound barrier main body 10 is disposed in the installation groove 21, and as shown in fig. 4, the sound barrier main body 10 includes a sound absorption layer 11, a sound transmission layer 12, and a waterproof layer 13.
In this embodiment, two pieces of mineral wool 111 in a rectangular parallelepiped shape are used as the sound absorbing layer 11. The single piece of mineral wool 111 has a length of 2000mm, a width of 230mm, a thickness of 50mm and a bulk weight of 80g/m 3 . The total thickness of the sound absorbing layer 11 formed by stacking the two pieces of mineral wool 111 is 100mm, the thickness is large, and the specific flow resistance is small, so that the sound absorbing layer 11 has a good effect of absorbing reflected and diffracted noise, and can absorb and reduce the noise of different frequency bands, and the sound absorbing and noise reducing effects of the sound barrier main body 10 are greatly improved.
The waterproof layer 13 is disposed on a surface of the sound absorbing layer 11 facing the mounting plate 20, a width of the waterproof layer 13 is smaller than or equal to a width of the sound absorbing layer 11, and a length of the waterproof layer 13 is smaller than or equal to a length of the sound absorbing layer 11.
The sound-transmitting layer 12 is wrapped outside the sound-absorbing layer 11, and the edge of the sound-transmitting layer 12 is fixedly connected to the surface of the waterproof layer 13 facing the mounting plate 20. The sound-transmitting layer 12 is made of a fabric material, in this embodiment, the fabric material is made of polyester fibers with a thickness of 0.52 mm, and the fabric material is bendable while the fiber restoring force can ensure high stability of the product shape and high compressive strength. The surfaces of two sides of the fabric material are coated with high-temperature-resistant and ultraviolet-resistant coatings, so that the fabric material has high mechanical strength, the effect in outdoor use can be ensured, and the service life is prolonged. In order to provide the sound-transmitting layer 12 with better fire-retardant property and strength property, the surface of the sound-transmitting layer 12 is also subjected to silver plating.
The sound-transmitting layer 12 has sound-transmitting holes 121 uniformly distributed in a grid-like manner. In the present embodiment, the perforation ratio on the surface of the sound-permeable layer 12 is 35%, the length of the sound-permeable hole 121 is 1 mm, the width is 0.8 mm, and the depth is 0.52 mm. In practical application, the perforation rate and the sound transmission hole size can be adjusted according to the use requirement.
When a train passes through, a large amount of sound waves of wheel track noise enter the sound absorption layer 11 with a micropore structure through the sound transmission layer 12 to cause the vibration of air in micropores, and due to the viscous resistance of the air, the friction between the air and the pore wall, the heat conduction effect and the like, a considerable part of sound energy is converted into heat energy to be lost, so that the noise reduction effect is realized.
In the present embodiment, the number of the mounting grooves 21 on a single mounting plate 20 is set to 3, and the 3 mounting grooves 21 are arranged in parallel in the vertical direction. The number of the sound barrier main bodies 10 installed on the installation plate 20 is also set to three correspondingly, and 3 sound barrier main bodies 10 are correspondingly installed in 3 installation grooves 21 respectively. The mounting plate 20 is arranged outside the rail 1 by means of an i-shaped upright 32.
Fig. 5 is a schematic perspective view of the rail sound barrier and the rail in the embodiment of the present invention, and fig. 6 is a cross-sectional view of the rail sound barrier and the rail in the embodiment of the present invention.
As shown in fig. 5 and 6, in the present embodiment, the track 1 includes two parallel steel rails 2, the track 1 is located in a double-track section, one side of the track 1 is a line-side platform 3, and the other side of the track 1 is provided with an opposite track 4. In order to achieve a better noise reduction effect, a plurality of rail sound barriers 100 are respectively disposed on both sides of the rail 1 along the extending direction of the rail 1. Two rail sound barriers 100 adjacent in the rail direction share one upright post 32 in the middle, and the mounting plates 20 in the two rail sound barriers 100 are respectively matched with the limiting grooves 322 on two sides of the upright post 32.
On the side close to the line-side platform 3, the number of the corresponding mounting plates 20 in the single rail sound barrier 100 is 1, the mounting plates 20 are mounted between the two columns 32, and the bottom of the mounting plates 20 abuts against the bottom plate 31. The 3 sound barrier main bodies 10 are respectively installed in the corresponding 3 installation grooves 21.
In the rail sound barrier 100 between the lines, i.e., on the side close to the facing rail 4, the number of the mounting plates 20 is two, and 6 sound barrier bodies 10 are respectively mounted in the corresponding 6 mounting grooves 21. Two mounting panels 20 are along vertical direction stack, and the mounting panel 20 bottom that is located the top has the location arch, and the mounting panel 20 top that is located the below has the positioning groove with it looks adaptation to can stable connection, difficult aversion between making two mounting panels 20. The inner side of the limiting groove 322 is provided with a limiting protrusion 323, in this embodiment, the limiting protrusion 323 is an angle iron welded on the inner side of the limiting groove 322, the limiting protrusion 323 is abutted against the bottom of the mounting plate 20 to support the mounting plate 20, a gap exists between the bottom of the mounting plate 20 and the plane of the upper surface of the bottom plate 31, and a baffle (not shown in the figure) is installed at the gap to prevent noise from leaking from the bottom.
In practical applications, the number of the sound barrier main bodies 10 and the mounting plates 20 correspondingly mounted in a single rail sound barrier 100 can be adjusted according to conditions such as the mounting position and the noise reduction range, and the mounting height of the rail sound barrier can also be adjusted by changing the setting position of the limiting protrusion 323.
The utility model discloses consider that setting up of track sound barrier 100 can the active absorption with block the wheel rail noise to verify this through the experiment. As shown in fig. 6, in the experiment, a first test point a is arranged at a position 7.5 meters away from the center of the train 5 and 1.2 meters away from the ground outside the track; a second test point B is arranged at a position 7.5 meters away from the center of the train 5 and 7.5 meters away from the ground; a third test point C is arranged at a position 40 meters away from the center of the train 5 and 1.2 meters away from the ground; and a fourth test point D is arranged at a position 40 meters away from the center of the train 5 and 7.5 meters away from the ground. The 4 test points were used to test the noise of the wheel and rail when the train passes through, and the test results are shown in table 1 below.
TABLE 1 test result recording table for train wheel-rail noise
As can be seen from table 1, the track sound barrier 100 disposed on the side of the track close to the linear side platform can effectively reduce the volume of the wheel track noise when the train runs; and the track sound barriers 100 are arranged on the two sides of the track, so that the volume of noise can be further reduced, and the noise reduction effect can be improved.
Fig. 7 is a flow chart of the manufacturing process of the rail sound barrier according to the embodiment of the present invention.
As shown in fig. 7, the process of manufacturing the rail sound barrier 100 specifically includes the following steps:
step S1, cutting the prepared sound absorption layer 11, the sound transmission layer 12 and the waterproof layer 13 to preset sizes;
s2, firstly placing the sound absorption layer 11 on the tiled sound transmission layer 12, then laying the waterproof layer 13 on the surface of one side, back to the sound transmission layer 12, of the sound absorption layer 11, and enabling the edge of the waterproof layer 13 to be parallel to the edge of the sound absorption layer 11;
s3, uniformly coating an adhesive on the surface of one side, back to the sound absorption layer 11, of the waterproof layer 13;
s4, folding the sound-transmitting layer 12 which is laid flatly below according to the shape of the sound-absorbing layer 11 to enable the sound-transmitting layer to tightly wrap six surfaces of the sound-absorbing layer 11;
step S5, fixedly connecting the edge of the sound-transmitting layer 12 with the waterproof layer 13 through an adhesive, thereby completing the manufacture of the sound barrier main body 10;
step S6, uniformly coating an adhesive in the mounting groove 21 of the mounting plate 20 which is pre-pressed, and fixing the sound barrier main body 10 in the mounting groove 21 through the adhesive;
step S7, welding the pre-pressed upright post 32 on the bottom plate 31, thereby completing the manufacture of the mounting frame 30;
and S8, finally, fixing the mounting plate 20 between the two upright posts 32 to complete the manufacture of the track sound barrier 100.
Examples effects and effects
According to the utility model discloses a track sound barrier, this track sound barrier's sound barrier main part is installed in the mounting groove towards track one side on the mounting panel, wheel rail noise when can the active absorption train travel, noise abatement pollution.
The sound barrier main part includes sound absorbing layer, sound transmission layer and waterproof layer. The waterproof layer sets up on the surface of sound absorbing layer towards the mounting panel, and the sound-transmitting layer parcel need not direct adhesive fixation at the outside on sound absorbing layer and edge fixed connection on the waterproof layer towards the mounting panel on the surface, between sound-transmitting layer and the sound absorbing layer, avoids the adhesive to block up the microporous structure on sound absorbing layer, can effectively improve the sound-transmitting rate on sound-transmitting layer, reaches better noise reduction. The sound transmission layer is connected with the waterproof layer at the sound absorption layer and faces the mounting plate, namely, one side of the steel rail is back to, so that the waterproof layer can prevent rainwater from entering the sound absorption layer from the edge connector of the sound transmission layer, noise generated on the track side is not influenced to enter the sound absorption layer through the sound transmission layer, and the waterproof layer is more smooth and attractive in appearance.
The sound-transmitting layer is made of a fabric material with the surface coated, the flexible sound-transmitting layer can ensure high stability and high compressive strength of the shape of a product, has high mechanical strength, is not easy to tear, can ensure the effect in outdoor use, and prolongs the service life. The silver plating treatment further improves the fire resistance and the strength performance of the sound-transmitting layer.
The sound transmission layer is provided with the sound transmission holes which are uniformly distributed in a latticed manner, the sound transmission performance is good, the sizes of the sound transmission holes are small, the adverse effects of rainwater on the use performance of the sound absorption layer inside the sound absorption layer can be reduced, the sound absorption layer is not prone to overflowing through the sound transmission holes, and therefore environmental pollution and the sound absorption performance of the sound barrier are avoided.
The sound barrier main part has the advantages of simple integral structure, convenient manufacture, no need of using a color steel plate or an aluminum plate to block the mounting groove, effective prolonging of the service life of the sound barrier, light weight, lower production cost, reduction of processing and construction period, and further reduction of labor and time cost.
The above embodiments are only used to illustrate specific embodiments of the present invention, and the present invention is not limited to the description of the above embodiments.
Claims (9)
1. The utility model provides a track sound barrier, sets up in the track both sides for absorb and block wheel rail noise, its characterized in that includes:
at least one sound barrier body comprising a sound absorbing layer, a sound transmitting layer and a waterproof layer; and
a mounting plate disposed outside the rail for mounting the sound barrier,
wherein the surface of the mounting plate facing the rail has a corresponding number of mounting grooves to the sound barrier body,
the sound barrier main body is arranged in the mounting groove,
the waterproof layer is arranged on the surface of the sound absorption layer facing the mounting plate,
the sound-transmitting layer is wrapped outside the sound-absorbing layer,
the edge of the sound-transmitting layer is fixedly connected to the surface, facing the mounting plate, of the waterproof layer.
2. The orbital sound barrier of claim 1, wherein:
wherein, the sound-transmitting layer adopts a fabric material with a surface coated with a layer.
3. The orbital sound barrier of claim 2, wherein:
wherein the surface of the sound-transmitting layer is also subjected to silver plating.
4. The orbital sound barrier of claim 2, wherein:
wherein, the sound transmission layer is provided with sound transmission holes which are uniformly distributed in a grid shape.
5. The orbital sound barrier of claim 4, wherein:
the length of the sound-permeable holes is 1 mm, the width of the sound-permeable holes is 0.8 mm, and the depth of the sound-permeable holes is 0.52 mm.
6. The orbital sound barrier of claim 1, wherein:
wherein the volume weight of the sound absorption layer is 80g/m 3 The mineral wool.
7. The orbital sound barrier of claim 1, wherein:
wherein, the length of sound absorption layer is 2000mm, and the width is 230mm, and thickness is 100mm.
8. The orbital sound barrier of claim 1, wherein:
wherein the width of the waterproof layer is less than or equal to the width of the sound absorption layer,
the length of the waterproof layer is smaller than or equal to that of the sound absorption layer.
9. The orbital sound barrier of claim 1, further comprising:
the mounting rack comprises a bottom plate arranged beside the track and a pair of mutually parallel upright posts connected to the bottom plate,
the mounting plate is installed between two stand columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221907127.8U CN217810596U (en) | 2022-07-23 | 2022-07-23 | Track sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221907127.8U CN217810596U (en) | 2022-07-23 | 2022-07-23 | Track sound barrier |
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| Publication Number | Publication Date |
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| CN217810596U true CN217810596U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221907127.8U Active CN217810596U (en) | 2022-07-23 | 2022-07-23 | Track sound barrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021648A1 (en) * | 2022-07-23 | 2024-02-01 | 浙江天铁实业股份有限公司 | Rail sound barrier and manufacturing method therefor |
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2022
- 2022-07-23 CN CN202221907127.8U patent/CN217810596U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021648A1 (en) * | 2022-07-23 | 2024-02-01 | 浙江天铁实业股份有限公司 | Rail sound barrier and manufacturing method therefor |
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