Multifunctional isolation device suitable for highway and railway same-layer arrangement

Abstract

The invention discloses a multifunctional isolation device suitable for highway and railway same-layer arrangement, which belongs to the technical field of bridge engineering and comprises a support frame, a composite sound absorption and insulation unit and an anti-dazzle unit. The supporting frame comprises a bottom supporting component and stand columns, and the composite sound absorption and insulation unit is embedded in the installation space. The composite sound absorption and insulation unit comprises a low-frequency noise elimination area and a high-frequency noise elimination area, a low-frequency super-structure module is arranged in the low-frequency noise elimination area, and a high-frequency super-structure module is arranged in the high-frequency noise elimination area. The anti-dazzle unit is embedded in the installation space, and a plurality of ventilation holes penetrating in the transverse direction are formed in the anti-dazzle unit. According to the multifunctional isolation device suitable for the same-layer arrangement of the highway and the railway, full isolation of noise between the highway and the railway can be achieved, and shielding of lamplight of automobiles and trains can be achieved while the good ventilation performance of the multifunctional isolation device is kept; and the interference between an automobile and a train which run at a high speed is obviously reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a multifunctional isolation device suitable for the same-level arrangement of roads and railways. Background Art

[0002] With the continuous development of the world economy and the increasing shortage of bridge resources, more and more cross-river and cross-sea channels at home and abroad adopt the plan of road-rail combined bridge construction. Road-rail combined bridges are divided into road-rail on the same level and road-rail in different levels. When road and rail are arranged on the same level, high-speed cars and trains will affect each other. In order to avoid mutual interference, it is necessary to design safety isolation facilities such as anti-collision guardrails, anti-throw nets, anti-glare facilities, noise reduction facilities, etc. for road-rail on the same level bridges.

[0003] In the existing technology, there are relatively few bridges with road-rail co-location that have been built and opened to traffic. At the same time, the isolation structure required to be set up between the road side and the railway side of the existing bridges with road-rail co-location cannot simultaneously meet the functions of safety isolation such as anti-collision, anti-throwing net, anti-glare, and noise reduction. Summary of the invention

[0004] In response to one or more of the above defects or improvement needs in the prior art, the present invention provides a multifunctional isolation device suitable for the same-level arrangement of roads and railways, which can achieve multifunctional isolation between roads and railways, and can not only fully isolate the noise between roads and railways, but also can shield the lights of cars and trains while maintaining the good ventilation performance of the multifunctional isolation device, thereby significantly reducing the interference between high-speed cars and trains.

[0005] To achieve the above object, the present invention provides a multifunctional isolation device suitable for the same-layer arrangement of highway and railway, which is used for multifunctional isolation between highway and railway, comprising: A support frame, the support frame comprising a plurality of bottom support members extending in the longitudinal direction and two columns extending in the vertical direction and arranged on both sides of the bottom support members, respectively, for forming an installation space between two adjacent columns and the bottom support members; A composite sound-absorbing and insulating unit, wherein the composite sound-absorbing and insulating unit is embedded in the installation space, and the bottom end surface of the composite sound-absorbing and insulating unit abuts against the top end surface of the bottom supporting member; and the composite sound-absorbing and insulating unit comprises a low-frequency sound-absorbing zone and a high-frequency sound-absorbing zone sequentially arranged in the vertical direction, wherein a plurality of low-frequency super-structure modules are arranged in the low-frequency sound-absorbing zone, and a plurality of high-frequency super-structure modules are arranged in the high-frequency sound-absorbing zone, for isolating and eliminating the noise between the highway and the railway; An anti-glare unit is embedded in the installation space, and the bottom end surface of the anti-glare unit abuts against the top end surface of the composite sound-absorbing and insulating unit; the anti-glare unit is provided with a plurality of ventilation holes that penetrate in the transverse direction, which are used for light shielding and ventilation of the anti-glare unit.

[0006] As a further preferred embodiment of the present invention, the composite sound absorption and insulation unit comprises a sound-absorbing chamber, the vertical top and bottom of the sound-absorbing chamber are both provided with low-frequency sound-absorbing areas, and a high-frequency sound-absorbing area is provided between the two low-frequency sound-absorbing areas.

[0007] As a further preferred embodiment of the present invention, the composite sound absorption and insulation unit includes a first back plate and a first front plate, the first back plate is a U-shaped groove structure, and the first front plate is embedded in the groove of the first back plate to form a sound absorption chamber between the first front plate and the first back plate.

[0008] As a further preferred embodiment of the present invention, the composite sound absorption and insulation unit further includes a first concave plate and a first convex plate, wherein the first concave plate is arranged on the top end surface of the first back plate, and the first convex plate is arranged on the bottom end surface of the first back plate; Alternatively, the first concave plate is arranged on the bottom end surface of the first back plate, and the first convex plate is arranged on the top end surface of the first back plate, for sealing the top end surface and the bottom end surface of the first back plate to form a complete muffler chamber.

[0009] As a further preferred embodiment of the present invention, a mounting pad is provided on the top end surface of the bottom supporting member, and the mounting pad is arranged corresponding to the shape of the bottom end surface of the composite sound absorbing and insulating unit to form a seal at the bottom of the composite sound absorbing and insulating unit.

[0010] As a further preferred embodiment of the present invention, at least two vertically arranged composite sound absorbing and insulating units are provided in the installation space, and a decoupling member is provided between two adjacent composite sound absorbing and insulating units to reduce vibration transmission between the two adjacent composite sound absorbing and insulating units.

[0011] As a further preferred embodiment of the present invention, the anti-glare unit includes a second front panel and a second back panel, the second back panel is a U-shaped groove structure, and the second front panel is embedded in the groove of the second back panel to form a ventilation chamber between the second front panel and the second back panel.

[0012] As a further preferred embodiment of the present invention, a plurality of ventilation holes are provided on the second front plate and the second back plate, and the ventilation holes are arranged in an array.

[0013] As a further preferred embodiment of the present invention, the anti-glare unit includes a second concave plate and a second convex plate, the second concave plate is arranged on the top end surface of the second back plate, and the second convex plate is arranged on the bottom end surface of the second back plate; Alternatively, the second concave plate is arranged on the bottom end surface of the second back plate, and the second convex plate is arranged on the top end surface of the second back plate, for sealing the top end surface and the bottom end surface of the second back plate to form a complete ventilation chamber.

[0014] As a further preferred embodiment of the present invention, an anti-collision guardrail is arranged under the bottom end surface of the bottom supporting member.

[0015] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: (1) The multifunctional isolation device of the present invention, which is suitable for the same-level arrangement of highway and railway, comprises a supporting frame, a composite sound-absorbing and insulating unit and an anti-glare unit. The supporting frame comprises a plurality of bottom supporting members extending in the longitudinal direction and two columns extending in the vertical direction and arranged on both sides of the bottom supporting member, respectively, for forming an installation space between two adjacent columns and the bottom supporting member. The composite sound-absorbing and insulating unit is embedded in the installation space, and the bottom end surface of the composite sound-absorbing and insulating unit abuts against the top end surface of the bottom supporting member. The composite sound-absorbing and insulating unit comprises a low-frequency anechoic zone and a high-frequency anechoic zone arranged in sequence in the vertical direction, wherein a plurality of low-frequency super-structure modules are arranged in the low-frequency anechoic zone, and a plurality of high-frequency super-structure modules are arranged in the high-frequency anechoic zone, for isolating and eliminating the noise between the highway and the railway. The anti-glare unit is embedded in the installation space, and the bottom end surface of the anti-glare unit abuts against the top end surface of the composite sound-absorbing and insulating unit. The anti-glare unit is provided with a plurality of ventilation holes extending in the transverse direction for shading and ventilation of the anti-glare unit. The multifunctional isolation device can realize multifunctional isolation between roads and railways. It can not only fully isolate the noise between roads and railways, but also shield the lights of cars and trains while maintaining the good ventilation performance of the multifunctional isolation device, thereby significantly reducing the interference between high-speed cars and trains.

[0016] (2) The multifunctional isolation device of the present invention, which is suitable for the same-level arrangement of highway and railway, can not only form a blockage at the joint position of the two units by providing a decoupling piece made of rubber between two adjacent composite sound-absorbing and sound-insulating units and between the composite sound-absorbing and sound-insulating unit and the anti-glare unit, thereby preventing noise, light, etc. from passing through the gap and ensuring the isolation performance of the multifunctional isolation device, but can also absorb the vibration between the composite sound-absorbing and sound-insulating unit and the anti-glare unit, thereby improving the structural stability of the multifunctional isolation device. At the same time, by providing a top gusset plate on the top of the column and a mounting pad on the top surface of the bottom supporting member, the composite sound-absorbing and sound-insulating unit and the anti-glare unit can be elastically installed in the installation space, thereby further improving the structural stability of the multifunctional isolation device.

[0017] (3) The multifunctional isolation device of the present invention, which is suitable for the same-level arrangement of highway and railway, has a simple structure, sufficient isolation, and convenient installation. By forming an installation space between the column and the bottom supporting member, and combining the composite sound absorption and insulation unit and the anti-glare unit arranged in the installation space, the multifunctional isolation device can achieve light isolation and maintain high air permeability while achieving noise isolation between the highway and the railway. At the same time, by vertically arranging the low-frequency anechoic zone and the high-frequency anechoic zone in the composite sound absorption and insulation unit, and combining the low-frequency super-structure module and the high-frequency super-structure module arranged in the low-frequency anechoic zone and the high-frequency anechoic zone along the array, the composite sound absorption and insulation unit can achieve the removal of the full-band noise between the highway and the railway, further improving the isolation performance of the multifunctional isolation device. In addition, by arranging the concave-convex structure on the top and bottom surfaces of the composite sound absorption and insulation unit and the anti-glare unit, the multifunctional isolation device can not only achieve convenient installation, but also ensure the installation stability between the composite sound absorption and insulation unit, the anti-glare unit and the supporting frame, and has good promotion prospects and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of a multifunctional isolation device suitable for the same-level arrangement of highway and railway in an embodiment of the present invention; Figure 2 AA is a cross-sectional view of a multifunctional isolation device applicable to the same-layer arrangement of road and railway in an embodiment of the present invention; Figure 3 is a top view of a multifunctional isolation device suitable for the same-level arrangement of highway and railway in an embodiment of the present invention; Figure 4 This is a front view of the composite sound-absorbing and sound-insulating unit of the multifunctional isolation device for road and railway arranged on the same floor in the embodiment of the present invention, with the first front plate hidden; Figure 5 2 is a side view of a composite sound-absorbing and sound-insulating unit of a multifunctional isolation device suitable for the same-layer arrangement of road and railway in an embodiment of the present invention; Figure 6 It is a three-dimensional diagram of a composite sound-absorbing and sound-insulating unit of a multifunctional isolation device suitable for the same-layer arrangement of road and railway in an embodiment of the present invention; Figure 7 This is a front view of an anti-glare unit of a multifunctional isolation device suitable for the same-level arrangement of road and railway in an embodiment of the present invention; Figure 8 It is a side view of an anti-glare unit of a multifunctional isolation device suitable for the same-level arrangement of road and railway in an embodiment of the present invention; Fig. 9 It is a stereoscopic diagram of an anti-glare unit of a multifunctional isolation device suitable for the same-level arrangement of road and railway in an embodiment of the present invention.

[0019] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. Bottom supporting member; 2. Upright column; 3. Composite sound absorption and insulation unit; 4. Low-frequency super-structure module; 5. High-frequency super-structure module; 6. First front plate; 7. First back plate; 8. First concave plate; 9. First convex plate; 10. Mounting pad; 11. Decoupling member; 12. Second front plate; 13. Second back plate; 14. Second concave plate; 15. Second convex plate; 16. Ventilation hole; 17. Top gusset plate; 18. Anti-collision guardrail; 19. Anti-glare unit. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] Example: See also Figures 1 to 9 The multifunctional isolation device suitable for the same-level arrangement of roads and railways in the preferred embodiment of the present invention can realize multifunctional isolation between roads and railways, not only can it fully isolate the noise between roads and railways, but also can shield the lights of cars and trains while maintaining the good ventilation performance of the multifunctional isolation device, thereby significantly reducing the interference between high-speed cars and trains.

[0026] Specifically, if Figures 1 to 9 As shown in the figure, in the preferred embodiment of the present application, the multifunctional isolation device includes a support frame, a composite sound absorption and insulation unit 3 and an anti-glare unit 19. The support frame is the basic support structure of the multifunctional isolation device, and the support frame includes a plurality of bottom support members 1 and a plurality of columns 2. Each bottom support member 1 is arranged to extend in the longitudinal direction, and vertically arranged columns 2 are provided at both ends of the longitudinal direction of the support member, thereby forming an installation space between two adjacent columns 2 and the bottom support member 1, so as to facilitate the fixed installation of the composite sound absorption and insulation unit and the anti-glare unit 19.

[0027] Furthermore, the composite sound-absorbing and insulating unit 3 is embedded in the installation space, and the composite sound-absorbing and insulating unit 3 is embedded in the installation space. At the same time, the bottom end surface of the composite sound-absorbing and insulating unit 3 abuts against the top end surface of the bottom supporting member 1, so as to form a stable seal between the composite sound-absorbing and insulating unit 3 and the bottom supporting member 1, and prevent noise and light from leaking through the seam between the two. The composite sound-absorbing and insulating unit 3 includes a low-frequency anechoic zone and a high-frequency anechoic zone arranged in sequence along the vertical direction, and a plurality of low-frequency super-structure modules 4 are arranged in the low-frequency anechoic zone, and a plurality of high-frequency super-structure modules 5 are arranged in the high-frequency anechoic zone, so as to achieve sufficient absorption and isolation of noise of different frequency bands on both sides of the highway and the railway through the low-frequency super-structure modules 4 and the high-frequency super-structure modules 5 arranged in the partition, and further improve the isolation performance of the multifunctional isolation device between the highway and the railway.

[0028] Furthermore, the anti-glare unit 19 is embedded in the installation space, the bottom end surface of the anti-glare unit 19 abuts against the top end surface of the composite sound absorption and isolation unit, and a plurality of ventilation holes 16 extending horizontally are provided on the anti-glare unit 19 for shading and ventilation of the anti-glare unit 19. At the same time, since the anti-glare unit 19 and the composite sound absorption and isolation unit 3 are arranged vertically, a barrier of a certain height is formed, thereby forming an anti-throwing net structure.

[0029] It is worth noting that in the preferred embodiment of the present application, the extending direction of the highway and the railway is the longitudinal direction. On the horizontal plane, the direction perpendicular to the longitudinal direction is the transverse direction, and the direction perpendicular or vertical to the horizontal plane is the vertical direction.

[0030] Further, in a preferred embodiment of the present application, the composite sound absorption and insulation unit 3 includes a sound absorbing chamber, and at the same time, low-frequency sound absorbing areas are provided at the vertical top and bottom of the sound absorbing chamber, and a high-frequency sound absorbing area is provided between the two low-frequency sound absorbing areas. Accordingly, a number of low-frequency super-structure modules 4 are arranged in the low-frequency sound absorbing area, and a number of high-frequency super-structure modules 5 are arranged in the high-frequency sound absorbing area. Preferably, the low-frequency super-structure modules 4 and the high-frequency super-structure modules 5 are uniformly arranged in an array.

[0031] Further preferably, in the preferred embodiment of the present application, both the low-frequency meta-module 4 and the high-frequency meta-module 5 are hollow shell structures, and a plurality of noise reduction through holes are provided on the noise reduction end faces of the low-frequency meta-module 4 and the high-frequency meta-module 5. Preferably, the area of ​​the noise reduction end face of the low-frequency meta-module 4 is smaller than that of the noise reduction end face of the high-frequency meta-module 5, and at the same time, the height of the low-frequency meta-module 4 perpendicular to the noise reduction end face is greater than the height of the high-frequency meta-module 5 perpendicular to the noise reduction end face.

[0032] In more detail, in a preferred embodiment of the present application, the inner diameters of the several noise reduction through holes opened on the noise reduction end surface are the same, and then several noise reduction through holes of different sizes are formed on the noise reduction end surface, so as to improve the sound reduction performance of the low-frequency super-structure module 4 and the high-frequency super-structure module 5.

[0033] Furthermore, in a preferred embodiment of the present application, the composite sound-absorbing and sound-insulating unit 3 includes a first back panel 7 and a first front panel 6, wherein the first back panel 7 is a U-shaped groove structure, and accordingly, the first front panel 6 is embedded in the groove position of the first back panel 7, thereby forming a sound-absorbing chamber between the first front panel 6 and the first back panel 7.

[0034] Further preferably, in the preferred embodiment of the present application, both longitudinal ends of the first front plate 6 are riveted to the longitudinal groove wall surface of the first back plate 7 .

[0035] In more detail, in a preferred embodiment of the present application, the composite sound-absorbing and insulating unit 3 further includes a first concave plate 8 and a first convex plate 9, wherein the first convex plate 9 is arranged on the top end surface of the first back plate 7, and the first convex plate 9 is arranged on the bottom end surface of the first back plate 7. Alternatively, the first concave plate 8 is arranged on the bottom end surface of the first back plate 7, and the first convex plate 9 is arranged on the top end surface of the first back plate 7, so as to block the top end surface and the bottom end surface of the first back plate 7, thereby forming a complete silencing chamber. At the same time, the first convex plate 9 and the first concave plate 8 arranged at the vertical ends of the composite sound-absorbing and insulating unit 3 are used to realize the stable and convenient installation of the composite sound-absorbing and insulating unit 3, thereby improving the convenience of construction and installation of the multifunctional isolation device.

[0036] Furthermore, in a preferred embodiment of the present application, at least two composite sound-absorbing and sound-insulating units 3 are arranged in the installation space, and each composite sound-absorbing and sound-insulating unit 3 is stacked in sequence along the vertical direction to form a sound-absorbing area with a certain vertical height. At the same time, a decoupling member 11 is provided between two adjacent composite sound-absorbing and sound-insulating units 3. Preferably, the decoupling member 11 is made of rubber material and is used to reduce the vibration transmission between the two adjacent composite sound-absorbing and sound-insulating units 3.

[0037] Further preferably, in the preferred embodiment of the present application, the decoupling member 11 is a groove-shaped elastic gasket, which corresponds to the shape of the first convex plate 9 and the first concave plate 8, so as to fill and reduce vibration of the joint between the first convex plate 9 and the first concave plate 8.

[0038] In more detail, in a preferred embodiment of the present application, a mounting pad 10 extending in the longitudinal direction is provided between the top end surface of the bottom supporting member 1 and the bottom end surface of the composite sound absorbing and insulating unit 3. At the same time, the mounting pad 10 is arranged corresponding to the shape of the bottom end surface of the composite sound absorbing and insulating unit 3, so as to form a blockage between the composite sound absorbing and insulating unit 3 and the bottom supporting member 1.

[0039] Preferably, the mounting pad 10 is an elastic gasket. Further preferably, if the bottom end surface of the composite sound-absorbing and insulating unit 3 is provided with a first convex plate 9 structure, correspondingly, the top end surface of the mounting pad 10 is a groove structure extending in the longitudinal direction, so that the first convex plate 9 can be accurately embedded in the top end surface of the mounting pad 10, thereby forming a stable fixation between the two. If the bottom end surface of the composite sound-absorbing and insulating unit 3 is provided with a first concave plate 8 structure, correspondingly, the top end surface of the mounting pad 10 is a convex structure extending in the longitudinal direction, so that the first concave plate 8 can be buckled on the top end surface of the mounting pad 10, thereby forming a stable fixation between the two.

[0040] Furthermore, in a preferred embodiment of the present application, a plurality of through holes arranged along an array are provided on the first front plate 6 and the first back plate 7. Preferably, the through holes extend laterally and penetrate the first front plate 6 and the first back plate 7, so that the low-frequency super-structure module 4 and the high-frequency super-structure module 5 arranged in the sound-absorbing chamber can form sound absorption for the noise between the road and the railway through the through holes provided on the first front plate 6 and the first back plate 7.

[0041] Furthermore, in a preferred embodiment of the present application, the anti-glare unit 19 includes a second front panel 12 and a second back panel 13, the second back panel 13 is a U-shaped groove structure, and at the same time, the second front panel 12 is embedded in the groove of the second back panel 13 to form a ventilation chamber between the second front panel 12 and the second back panel 13.

[0042] Further preferably, in the preferred embodiment of the present application, a plurality of ventilation holes 16 are provided on the second front plate 12 and the second back plate 13, and the ventilation holes 16 are arranged in an array. Preferably, the ventilation holes 16 are evenly arranged on the entire second front plate 12 and the second back plate 13, so that the anti-glare unit 19 can achieve light shielding while ensuring ventilation. Further preferably, the ventilation holes 16 are circular holes, square holes, elliptical holes, or water ripple holes. Preferably, the hollow openings of the anti-glare unit 19 are not less than 40%.

[0043] In more detail, in a specific preferred embodiment of the present application, the ventilation holes 16 are water corrugated holes with a width of 15 mm, an angle of 32°, a longitudinal spacing of 35 mm, a vertical spacing of 26 mm, and a comprehensive air permeability of 40%.

[0044] Furthermore, in a preferred embodiment of the present application, a plurality of reinforcing plates extending vertically are arranged in the ventilation chamber, and each reinforcing plate is arranged at intervals in the longitudinal direction to improve the structural strength of the anti-glare unit 19. Preferably, an anti-glare plate is also arranged in the ventilation chamber to improve the anti-glare effect of the anti-glare unit 19.

[0045] Further preferably, in the preferred embodiment of the present application, the anti-glare unit 19 includes a second concave plate 14 and a second convex plate 15, the second concave plate 14 is arranged on the top end surface of the second back plate 13, and the second convex plate 15 is arranged on the bottom end surface of the second back plate 13. Alternatively, the second concave plate 14 is arranged on the bottom end surface of the second back plate 13, and the second convex plate 15 is arranged on the top end surface of the second back plate 13, for blocking the top end surface and the bottom end surface of the second back plate 13 to form a complete ventilation chamber.

[0046] Furthermore, in a preferred embodiment of the present application, the column 2 is an H-shaped steel column 2 , a square steel column 2 or a D-shaped steel column 2 .

[0047] Further preferably, in the preferred embodiment of the present application, a top buckle plate 17 is provided at the top of the column 2. Preferably, the top buckle plate 17 is buckled onto the top end surface of the anti-glare unit 19. Further, the top buckle realizes a detachable connection of the top buckle plate 17 on the top end surface of the column 2 through a U-shaped connector.

[0048] Furthermore, in a preferred embodiment of the present application, the bottom of the column 2 is fixed to the steel beam surface by bolting or welding; the concrete bridge deck is pre-embedded with U-bolts, and the column 2 is fixed to the embedded parts by bolting.

[0049] Further preferably, in the preferred embodiment of the present application, an anti-collision guardrail 18 is provided on the bottom end surface of the bottom support member 1 .

[0050] The multifunctional isolation device suitable for the same-layer arrangement of highway and railway in the present invention has a simple structure, sufficient isolation and convenient installation. The installation space formed between the column 2 and the bottom support member 1 is combined with the composite sound absorption and insulation unit 3 and the anti-glare unit 19 arranged in the installation space, so that the multifunctional isolation device can achieve light isolation and maintain high air permeability while achieving noise isolation between the highway and the railway. At the same time, through the low-frequency anechoic zone and the high-frequency anechoic zone arranged vertically in the composite sound absorption and insulation unit 3, and combined with the low-frequency super-structure module 4 and the high-frequency super-structure module 5 arranged in the low-frequency anechoic zone and the high-frequency anechoic zone along the array, the composite sound absorption and insulation unit 3 can achieve the removal of the full-band noise between the highway and the railway, and further improve the isolation performance of the multifunctional isolation device. In addition, through the concave-convex structure arranged on the top and bottom surfaces of the composite sound absorption and insulation unit 3 and the anti-glare unit 19, the multifunctional isolation device can not only achieve convenient installation, but also ensure the installation stability between the composite sound absorption and insulation unit 3, the anti-glare unit 19 and the supporting frame, and has good promotion prospects and application value.

[0051] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional isolation device suitable for the same-level arrangement of highway and railway, used for multifunctional isolation between highway and railway, characterized in that: include: A support frame, the support frame comprising a plurality of bottom support members extending in the longitudinal direction and two columns extending in the vertical direction and arranged on both sides of the bottom support members, respectively, for forming an installation space between two adjacent columns and the bottom support members; A composite sound-absorbing and insulating unit, wherein the composite sound-absorbing and insulating unit is embedded in the installation space, and the bottom end surface of the composite sound-absorbing and insulating unit abuts against the top end surface of the bottom supporting member; and the composite sound-absorbing and insulating unit comprises a low-frequency sound-absorbing zone and a high-frequency sound-absorbing zone sequentially arranged in the vertical direction, wherein a plurality of low-frequency super-structure modules are arranged in the low-frequency sound-absorbing zone, and a plurality of high-frequency super-structure modules are arranged in the high-frequency sound-absorbing zone, for isolating and eliminating the noise between the highway and the railway; An anti-glare unit is embedded in the installation space, and the bottom end surface of the anti-glare unit abuts against the top end surface of the composite sound-absorbing and insulating unit; the anti-glare unit is provided with a plurality of ventilation holes that penetrate in the transverse direction, which are used for light shielding and ventilation of the anti-glare unit.

2. The multifunctional isolation device suitable for the same-level arrangement of road and railway according to claim 1, wherein: The composite sound absorption and insulation unit comprises a sound-absorbing chamber, wherein the vertical top and the vertical bottom of the sound-absorbing chamber are both provided with low-frequency sound-absorbing areas, and a high-frequency sound-absorbing area is provided between the two low-frequency sound-absorbing areas.

3. The multifunctional isolation device suitable for the same-level arrangement of road and railway according to claim 2, wherein: The composite sound absorption and insulation unit includes a first back plate and a first front plate, the first back plate is a U-shaped groove structure, and the first front plate is embedded in the groove of the first back plate to form a sound-absorbing chamber between the first front plate and the first back plate.

4. The multifunctional isolation device suitable for the same-level arrangement of road and railway according to claim 3, wherein: The composite sound absorption and insulation unit further includes a first concave plate and a first convex plate, wherein the first concave plate is arranged on the top end surface of the first back plate, and the first convex plate is arranged on the bottom end surface of the first back plate; Alternatively, the first concave plate is arranged on the bottom end surface of the first back plate, and the first convex plate is arranged on the top end surface of the first back plate, for sealing the top end surface and the bottom end surface of the first back plate to form a complete muffler chamber.

5. The multifunctional isolation device suitable for the same-level arrangement of road and railway according to any one of claims 1 to 4, wherein: The top end surface of the bottom supporting member is provided with a mounting pad, and the mounting pad is arranged corresponding to the shape of the bottom end surface of the composite sound absorbing and insulating unit, and is used to form a seal at the bottom of the composite sound absorbing and insulating unit.

6. The multifunctional isolation device suitable for the same-level arrangement of road and railway according to any one of claims 1 to 4, wherein: At least two composite sound-absorbing and sound-insulating units arranged vertically are arranged in the installation space, and a decoupling member is arranged between two adjacent composite sound-absorbing and sound-insulating units to reduce vibration transmission between the two adjacent composite sound-absorbing and sound-insulating units.

7. The multifunctional isolation device suitable for road and railway on the same floor according to any one of claims 1 to 4, wherein: The anti-glare unit includes a second front plate and a second back plate, the second back plate is a U-shaped groove structure, and the second front plate is embedded in the notch of the second back plate to form a ventilation chamber between the second front plate and the second back plate.

8. The multifunctional isolation device suitable for the same-level arrangement of road and railway according to claim 7, wherein: A plurality of ventilation holes are formed on the second front plate and the second back plate, and the ventilation holes are arranged in an array.

9. The multifunctional isolation device suitable for the same-level arrangement of road and railway according to claim 8, wherein: The anti-glare unit comprises a second concave plate and a second convex plate, wherein the second concave plate is arranged on the top end surface of the second back plate, and the second convex plate is arranged on the bottom end surface of the second back plate; Alternatively, the second concave plate is arranged on the bottom end surface of the second back plate, and the second convex plate is arranged on the top end surface of the second back plate, for sealing the top end surface and the bottom end surface of the second back plate to form a complete ventilation chamber.

10. The multifunctional isolation device suitable for road and railway on the same floor according to any one of claims 1 to 4, wherein: An anti-collision guardrail is arranged below the bottom end surface of the bottom supporting member.

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