Insertion plate type I-shaped unit plate of metal sound barrier

Abstract

The invention discloses a plug board type I-shaped unit board of a metal sound barrier, and relates to the field of sound shielding. Comprising two main beam profiles which are symmetrically arranged up and down; the multiple middle keels are sequentially and fixedly connected between the two main beam profiles in parallel, round through holes are formed in the middle keels, and the ends of the round through holes can be fixedly connected with the corresponding main beam profiles; the sound absorption assembly is arranged in a mounting area formed by the middle keel and the main beam profile; the face and back plate assemblies are arranged on the front side and the rear side of the sound absorption assembly, the upper ends and the lower ends of the face and back plate assemblies are fixedly connected with the corresponding main beam sectional materials respectively, and ethylene-propylene-diene monomer foaming rubber strips are arranged between the face and back plate assemblies and the main beam sectional materials. The end sealing heads are symmetrically fixed to the left side and the right side of the face back plate assembly, and the suspension inhaul cables can penetrate through cavities between the end sealing heads and the adjacent middle keels. The falling risk caused by the problems of displacement, accidental impact, size measurement and the like can be prevented, and the fatigue service life of the metal sound barrier is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of sound shielding devices, and in particular to a plug-in type metal sound barrier type I unit plate. Background Art

[0002] Sound barriers are mainly installed on both sides of railways or urban rail transit to reduce noise pollution and improve the quality of people's living environment. Its basic design principles include using sound-absorbing materials to absorb sound wave energy and using sound-insulating materials to block the propagation of sound waves. With the construction and development of cities, the number of existing high-speed trains and their running times will increase day by day, and the impact fatigue performance of sound barriers will become higher and higher. In order to ensure the safety of metal sound barriers within the prescribed service life, it is urgent to develop a sound barrier that enhances the fatigue use of metal sound barriers. Summary of the invention

[0003] The purpose of the present invention is to provide a plug-in type metal sound barrier type I unit plate to solve the problems existing in the above-mentioned prior art, and to prevent the risk of falling off caused by displacement, accidental impact, dimensional measurement and other problems, thereby enhancing the number of fatigue uses of the metal sound barrier as a whole and increasing its service life.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a plug-in type metal sound barrier type I unit plate, comprising:

[0006] A main beam profile, wherein two main beam profiles are arranged symmetrically up and down;

[0007] A plurality of middle keels are fixedly connected in parallel between the two main beam profiles in sequence, and a circular through hole is opened on the middle keel, and the end of the circular through hole can be fixedly connected to the corresponding main beam profile;

[0008] A sound absorbing component is arranged in the installation area formed by the middle keel and the main beam profile;

[0009] The back panel assembly is arranged at the front and rear sides of the sound absorbing assembly, and the upper and lower ends thereof are respectively fixedly connected to the corresponding main beam profiles;

[0010] The end caps are symmetrically fixed on the left and right sides of the face and back panel assembly, and a suspension cable can be passed through the cavity between the end caps and the adjacent middle keel.

[0011] Preferably, the transverse cross-section of the middle keel is an I-shaped structure, the upper and lower ends of the two side plates of the middle keel are respectively fixedly connected to the corresponding main beam profiles, and the middle connecting plate of the middle keel is integrally formed with a vertically arranged connecting tube, and the circular through hole penetrates the connecting tube axially, and the top and bottom of the circular through hole can be bolted or riveted to the corresponding main beam profiles respectively; the installation area is a rectangular space with boundaries, the two main beam profiles form the upper and lower boundaries of the installation area, the middle connecting plates of two adjacent middle keels form the left and right boundaries of the installation area, and the side plates of two adjacent middle keels form the front and rear boundaries of the installation area.

[0012] Preferably, the inner side of the side plate of the middle keel is provided with strip-shaped protrusions arranged along the length direction.

[0013] Preferably, the main beam profile is an integral extruded structure, including a cavity plate and two L-shaped positioning plates, the long sides of the L-shaped positioning plates are arranged horizontally, and the left and right ends of the cavity plate are respectively fixed to the upper part of the long sides of the corresponding L-shaped positioning plates, and a vertical short side is fixed on the inner side of the long side of the L-shaped positioning plate, and the short side is used to fix the middle keel; a bending groove in the opposite direction of the short side is provided on the long side of the L-shaped positioning plate away from the short side, and the bending groove is used to fix the back panel assembly.

[0014] Preferably, the face and back panel assembly includes a panel and a back panel, and bending hooks are provided at the upper and lower ends of the panel and the back panel. The two bending hooks of the panel are respectively fixedly fastened to the bending grooves on the front sides of the upper and lower main beam profiles, and the two bending hooks of the back panel are respectively fixedly fastened to the bending grooves on the rear sides of the upper and lower main beam profiles.

[0015] Preferably, a plurality of waist-shaped holes are provided on the panel; and reinforcing ribs can be horizontally arranged along the length direction in the middle of the panel.

[0016] Preferably, a concave structure is provided in the middle of the cavity plate, and the inner side of the concave structure is fixedly connected to the corresponding end of the circular through hole by bolts; a first drainage groove is formed on the outer side of the concave structure, and a second drainage groove is formed between the inner side and the short side of the cavity plate at both ends of the concave structure.

[0017] Preferably, the sound absorbing component comprises an aluminum plate mesh, sound absorbing rock wool and a hydrophobic glass fiber cloth; the sound absorbing rock wool is wrapped with the hydrophobic glass fiber cloth, and the aluminum plate mesh is clamped to the outer side of the hydrophobic glass fiber cloth.

[0018] Preferably, a vertically arranged single-tube rubber strip is provided on the outer side of the left and right ends of the face and back panel assembly. The radial cross-section of the single-tube rubber strip is a circular structure, and an extended edge is provided on one side of the circular structure. The end caps are fixedly pressed together with the extended edges of the single-tube rubber strip when they are fixedly arranged on both sides of the face and back panel assembly. The outer side of the end caps is fixedly inserted in the steel column cavity, and the inner side wall of the steel column cavity is fixedly abutted against the circular structure of the single-tube rubber strip. A horizontally arranged foam rubber strip with a circular radial cross-section is provided in the bending groove, and the foam rubber strip is located at the connection position of the bending hook and the bending groove.

[0019] Preferably, an inter-plate groove is fixedly provided on the outer side of the main beam profile, and an inter-plate rubber strip is clamped in the inter-plate groove, and the corresponding inter-plate rubber strips of the two adjacent upper and lower plug-in type metal sound barrier type I unit panels are fixedly abutted.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The cavity between the end cap and the adjacent middle keel of the present invention can be passed through a suspension cable, which passes through between the upper and lower main beam profiles and is fixed on an external fixed structure, thereby playing an auxiliary supporting role for the present invention as a whole; the main beam profile adopts an aluminum profile structure, and the extruded shape plays the role of a damping spring by its own structure. When subjected to external force, it is compressed and can rebound to its initial state by its own elasticity. In addition, EPDM foam rubber is arranged between the face and back panel assembly and the main beam profile. When subjected to train wind pressure, the main beam profile and the foam rubber strip can play a dual damping role, further improving the impact resistance of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the type I unit plate of the plug-in metal sound barrier after removing the end cap in one or some embodiments of the present invention;

[0024] Figure 2 A schematic diagram of the main beam profile structure in one or some embodiments of the present invention;

[0025] Figure 3 A schematic diagram of a middle keel in one or some embodiments of the present invention;

[0026] Figure 4 It is a schematic diagram of an end cap in one or some embodiments of the present invention;

[0027] Figure 5 A schematic diagram of a radial cross section of a foamed rubber strip in one or some embodiments of the present invention;

[0028] Figure 6 A schematic diagram of a radial cross section of an inter-plate rubber strip in one or some embodiments of the present invention;

[0029] Figure 7 A schematic diagram of a radial cross section of a single-tube rubber strip in one or some embodiments of the present invention;

[0030] Figure 8 A schematic diagram of the installation positions of the foam rubber strip, the inter-board rubber strip and the single-tube rubber strip in one or some embodiments of the present invention;

[0031] Fig. 9 A schematic diagram of a sound absorbing component in one or some embodiments of the present invention;

[0032] Fig.10 A schematic diagram of a panel in one or some embodiments of the present invention;

[0033] Fig.11 A schematic diagram of a backplane in one or some embodiments of the present invention;

[0034] Fig.12 It is a schematic cross-sectional view of the overall structure in one or some embodiments of the present invention;

[0035] Fig.13 A cross-sectional schematic diagram of a sound absorbing assembly after installation in one or some embodiments of the present invention;

[0036] Fig.14 A schematic cross-sectional view of the connection between the steel column cavity and the noise reduction unit plate in one or some embodiments of the present invention;

[0037] Fig.15 A schematic cross-sectional view of the connection position between the back plate and the main beam profile in one or some embodiments of the present invention;

[0038] Fig.16 It is a front view of the sound absorbing component in one or some embodiments of the present invention.

[0039] In the figure: 1-main beam profile, 101-cavity plate, 102-L-shaped positioning plate, 103-bending groove, 104-concave structure, 105-inter-plate groove, 2-panel, 201-reinforcement rib, 202-waist-shaped hole, 3-back plate, 4-sound absorption component, 401-sound absorption rock wool, 402-hydrophobic glass fiber cloth, 403-aluminum plate mesh, 5-end head, 6-steel column cavity, 7-middle keel, 701-connecting pipe, 702-strip protrusion, 703-circular through hole, 8-foam rubber strip, 9-inter-plate rubber strip, 10-single-tube rubber strip, 11-bending hook, 12-first drainage groove, 13-second drainage groove. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The purpose of the present invention is to provide a plug-in type metal sound barrier type I unit plate to solve the problems existing in the above-mentioned prior art, and to prevent the risk of falling off caused by displacement, accidental impact, dimensional measurement and other problems, thereby enhancing the number of fatigue uses of the metal sound barrier as a whole and increasing its service life.

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] The present invention provides a plug-in type metal sound barrier type I unit plate, such as Figures 1 to 16As shown, it includes two main beam profiles 1 arranged symmetrically up and down; a plurality of middle keels 7 are fixedly connected in parallel between the two main beam profiles 1 in sequence, playing a supporting role and being able to withstand the vertical load when the present invention is used, and a circular through hole is opened on the middle keel 7, and the circular through hole can be fixedly connected with the corresponding main beam profile 1 by bolts. In addition to the bolting method, the two can also be fixedly connected by riveting, or the bolts can be removed, and then the suspension cable can be inserted into the circular through hole 703 from the bolt hole of the main beam profile 1, which can also play a role in suspension support for the overall device; the sound absorbing component 4 is arranged in the installation area formed by the middle keel 7 and the main beam profile 1, and the sound absorbing component 4 includes an aluminum plate mesh 403, a sound absorbing rock wool 401 and a hydrophobic glass fiber cloth 402; the sound absorbing rock wool 401 is wrapped with a hydrophobic glass fiber cloth 402, and the outer side of the hydrophobic glass fiber cloth 402 is clamped with an aluminum plate mesh 403. The face and back panel assemblies are arranged on the front and rear sides of the sound absorbing assembly 4, and the upper and lower ends thereof are fixedly connected to the corresponding main beam profile 1 respectively; the end head 5 is a U-shaped plate structure with an open side, and the open side is provided with two intermediate plates parallel to the side edges. The cavity formed between the two side edges of the end head 5 is larger than the width between the face and back panel assemblies, so the end head 5 can be symmetrically clamped on the left and right sides of the face and back panel assembly to block the left and right ends of the noise reduction unit plate to prevent the face and back panel 3 from moving left and right when the noise reduction unit plate is in use; when the sound barrier is used as a whole, the end head 5 can isolate the steel column from the noise reduction unit plate and play a buffering effect.

[0044] In one embodiment, the front-back panel assembly includes a panel 2 and a back panel 3, the panel 2 is the side close to the railway or track when in use, the side where the panel 2 is located is the front side, and the side where the back panel 3 is located is the rear side, the transverse cross-section of the middle keel 7 is an I-shaped structure, the upper and lower ends of the two side panels of the middle keel 7 are respectively fixedly connected to the corresponding main beam profile 1, and a vertically arranged connecting pipe 701 is integrally formed on the middle connecting plate of the middle keel 7, and a circular through hole 703 axially penetrates the connecting pipe 701, and the top and bottom of the circular through hole 703 can be fixedly connected to the corresponding main beam profile 1 by bolts; the installation area is a rectangular space with boundaries, the two main beam profiles 1 form the upper and lower boundaries of the installation area, the middle connecting plates of two adjacent middle keels 7 form the left and right boundaries of the installation area, and the front and rear boundaries of the installation area are formed between the virtual surface where the side panels of the front sides of the two adjacent middle keels 7 are located and the virtual surface where the side panels of the rear sides of the two adjacent middle keels 7 are located. In this embodiment, a strip protrusion 702 arranged along the length direction is provided on the inner side of the side plate of the middle keel 7. When used as a whole, the strip protrusion 702 has the function of a slot for the sound absorbing component 4 to prevent the sound absorbing component 4 from vibrating due to the impact of the train pulse force during use; the vertically arranged strip protrusion 702 can also dissipate the load perpendicular to the surface of the noise reduction unit plate transmitted by the main beam profile 1. At this time, the strip protrusion 702 mainly acts as a reinforcing rib.

[0045] The main beam profile 1 of the present embodiment is an integrally formed structure, and the main structure of the main beam profile 1 includes a cavity plate 101 and two L-shaped positioning plates 102, the long sides of the L-shaped positioning plates 102 are arranged horizontally, and the left and right ends of the cavity plate 101 are respectively fixed to the upper part of the long sides of the corresponding L-shaped positioning plates 102, and a vertical short side is fixed on the inner side of the long side of the L-shaped positioning plate 102, and the short side is used to fix and connect the middle keel 7; the long side of the L-shaped positioning plate 102 is provided with a bending groove 103 in the opposite direction of the short side at one end away from the short side, and the upper and lower ends of the panel 2 and the back panel 3 of the present embodiment are provided with bending hooks 11, and the two bending hooks 11 of the panel 2 are respectively fixedly engaged with the bending grooves 103 on the front sides of the upper and lower main beam profiles 1, and the two bending hooks 11 of the back panel 3 are respectively fixedly engaged with the bending grooves 103 on the rear sides of the upper and lower main beam profiles 1. The circular structure at the edge of the bending groove 103 matches the position of the bending hook 11 of the back plate 3. When subjected to force, the force is released through the arc surface of the bending groove 103 to prevent the back plate 3 from being damaged due to impact.

[0046] A plurality of waist-shaped holes 202 are provided on the panel 2. When a train passes quickly, the air in front of the train is squeezed to form positive pressure, and enters the device of the present invention through the waist-shaped holes 202 to impact the device of the present invention. Negative pressure is formed during the passage of the train, and the air flows in the reverse direction, and then impacts the device of the present invention in the reverse direction. Since a plurality of middle keels 7 are provided, a good supporting effect can be played, and the fatigue use times of the metal sound barrier are enhanced as a whole. Reinforcing ribs 201 can be horizontally arranged along the length direction in the middle of the panel 2 as needed, thereby improving the impact resistance of the panel 2.

[0047] A concave structure 104 is provided in the middle of the cavity plate 101, and the inner side of the concave structure 104 is fixedly connected to the corresponding end of the circular through hole by bolts; a first drainage groove 12 is formed on the outer side of the concave structure 104, and a second drainage groove 13 is formed between the inner side and the short side of the cavity plate 101 at both ends of the concave structure 104. In case of rain or snow, rainwater can be discharged in time to prevent the sound absorbing component 4 from being soaked by rainwater.

[0048] In order to achieve better sealing performance and further improve the buffering effect, a vertically arranged single-tube rubber strip 10 is provided on the outer side of the left and right ends of the face and back panel assembly. The radial cross-section of the single-tube rubber strip 10 is a circular structure, and an extension edge is provided on one side of the circular structure. When the end caps 5 are fixedly arranged on both sides of the face and back panel assembly, the extension edges of the single-tube rubber strip 10 are fixedly pressed. The outer side of the end caps 5 is fixedly inserted in the steel column cavity 6, and the inner side wall of the steel column cavity 6 is fixedly abutted against the circular structure of the single-tube rubber strip 10. The single-tube rubber strip 10 is extruded and molded by EPDM rubber to isolate the noise reduction unit plate from the steel column cavity 6; a horizontally arranged foamed rubber strip 8 with a circular radial cross-section is provided in the bending groove 103, and the foamed rubber strip 8 is located at the connection position of the bending hook 11 and the bending groove 103. The foamed rubber strip 8 is made of EPDM foamed rubber, which plays a buffering and damping role during vibration.

[0049] The present invention also provides a sound barrier, including the above-mentioned plug-in type metal sound barrier type I unit plate, the left and right sides of the plug-in type metal sound barrier type I unit plate are fixed in the steel column cavity 6, the outer side of the main beam profile 1 is fixedly provided with an inter-plate groove 105, and the inter-plate rubber strip 9 is clamped in the inter-plate groove 105. The main structure of the inter-plate rubber strip 9 is the same as the single-tube rubber strip 10, except that the circular structure side wall of the inter-plate rubber strip 9 is also fixedly connected with a T-shaped positioning portion, and the T-shaped positioning portion is fixedly clamped in the corresponding inter-plate groove 105; the circular structures of the inter-plate rubber strips 9 corresponding to the upper and lower adjacent plug-in type metal sound barrier type I unit plates are fixedly abutted, and the inter-plate rubber strips 9 are formed by extrusion of EPDM rubber and are arranged in the inter-plate groove through the length to isolate noise from being transmitted from between the upper and lower adjacent plug-in type metal sound barrier type I unit plates.

[0050] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A plug-in type metal sound barrier type I unit plate, characterized in that: include: A main beam profile, wherein two main beam profiles are arranged symmetrically up and down; A plurality of middle keels are fixedly connected in parallel between two main beam profiles in sequence, and a circular through hole is opened on the middle keel, and the end of the circular through hole can be fixedly connected to the corresponding main beam profile; A sound absorbing component is arranged in the installation area formed by the middle keel and the main beam profile; The back panel assembly is arranged at the front and rear sides of the sound absorbing assembly, and the upper and lower ends thereof are respectively fixedly connected to the corresponding main beam profiles; The end caps are symmetrically fixed on the left and right sides of the face and back panel assembly, and a suspension cable can be passed through the cavity between the end caps and the adjacent middle keel.

2. The plug-in type metal sound barrier type I unit plate according to claim 1 is characterized in that: The transverse cross-section of the middle keel is an I-shaped structure, and the upper and lower ends of the two side plates of the middle keel are respectively fixedly connected to the corresponding main beam profiles, and a vertically arranged connecting pipe is integrally formed on the middle connecting plate of the middle keel. The circular through hole penetrates the connecting pipe axially, and the top and bottom of the circular through hole can be bolted or riveted to the corresponding main beam profiles respectively; the installation area is a rectangular space with boundaries, and the two main beam profiles form the upper and lower boundaries of the installation area, the middle connecting plates of two adjacent middle keels form the left and right boundaries of the installation area, and the side plates of two adjacent middle keels form the front and rear boundaries of the installation area.

3. The plug-in type metal sound barrier type I unit plate according to claim 2 is characterized in that: The inner side of the side plate of the middle keel is provided with strip-shaped protrusions arranged along the length direction.

4. The plug-in type metal sound barrier type I unit plate according to claim 1, characterized in that: The main beam profile is an integrated extruded structure, including a cavity plate and two L-shaped positioning plates, the long sides of the L-shaped positioning plates are arranged horizontally, and the left and right ends of the cavity plate are respectively fixed to the upper part of the long sides of the corresponding L-shaped positioning plates, and a vertical short side is fixed on the inner side of the long side of the L-shaped positioning plate, and the short side is used to fix the middle keel; the long side of the L-shaped positioning plate is provided with a bending groove in the opposite direction of the short side at one end away from the short side, and the bending groove is used to fix the back panel assembly.

5. The plug-in type metal sound barrier type I unit plate according to claim 4 is characterized in that: The face and back panel assembly includes a face panel and a back panel, and bending hooks are provided at the upper and lower ends of the face panel and the back panel. The two bending hooks of the face panel are respectively fixedly fastened to the bending grooves on the front sides of the upper and lower main beam profiles, and the two bending hooks of the back panel are respectively fixedly fastened to the bending grooves on the rear sides of the upper and lower main beam profiles.

6. The plug-in type metal sound barrier type I unit plate according to claim 5 is characterized in that: The panel is provided with a plurality of waist-shaped holes; and reinforcing ribs can be horizontally arranged in the middle of the panel along the length direction.

7. The plug-in type metal sound barrier type I unit plate according to claim 4 is characterized in that: A concave structure is provided in the middle of the cavity plate, and the inner side of the concave structure is fixedly connected to the corresponding end of the circular through hole by bolts; a first drainage groove is formed on the outer side of the concave structure, and a second drainage groove is formed between the inner side and the short side of the cavity plate at both ends of the concave structure.

8. The plug-in type metal sound barrier type I unit plate according to claim 1 is characterized by: The sound absorbing component comprises an aluminum plate mesh, sound absorbing rock wool and a hydrophobic glass fiber cloth; the sound absorbing rock wool is wrapped with the hydrophobic glass fiber cloth, and the aluminum plate mesh is clamped on the outer side of the hydrophobic glass fiber cloth.

9. The plug-in type metal sound barrier type I unit plate according to claim 5, characterized in that: A vertically arranged single-tube rubber strip is provided on the outer side of the left and right ends of the face and back panel assembly. The radial cross-section of the single-tube rubber strip is a circular structure, and an extended edge is provided on one side of the circular structure. When the end caps are fixedly arranged on both sides of the face and back panel assembly, the extended edges of the single-tube rubber strip are fixedly pressed. The outer side of the end caps is fixedly inserted in the steel column cavity, and the inner side wall of the steel column cavity is fixedly abutted against the circular structure of the single-tube rubber strip; a horizontally arranged foam rubber strip with a circular radial cross-section is provided in the bending groove, and the foam rubber strip is located at the connection position of the bending hook and the bending groove.

10. The plug-in type metal sound barrier type I unit plate according to claim 5, characterized in that: An inter-plate groove is fixedly provided on the outer side of the main beam profile, and an inter-plate rubber strip is clamped in the inter-plate groove. The corresponding inter-plate rubber strips of the two adjacent upper and lower plug-in type metal sound barrier type I unit panels are fixedly abutted.

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