Damping type railway metal sound barrier unit plate suitable for higher speed per hour

Abstract

The utility model relates to a damping type railway metal sound barrier unit plate suitable for higher speed per hour, in particular to a railway inserting plate type metal sound barrier which is composed of a face plate, a back plate, two-end vertical supporting section bars, a middle vertical supporting section bar, vertical supporting fixing piece section bars, two-end outer side damping pieces, an inner structure damping pad and a sound absorption assembly. Belongs to the technical field of vibration and noise reduction in the field of environmental protection. The face / back plate is integrally formed in a bending mode, and a combined frame is formed in a folded plate buckling mode. The two-end vertical support sectional material and the middle vertical support sectional material are mounted in the surface / back plate buckling frame and are used for supporting the sound absorption assembly; the vertical support fixing part sectional materials are used for clamping and fixing the two-end vertical support sectional materials and the middle vertical support; the outer damping pieces at the two ends adopt double-pipe rubber strips and are fixed at the positions of the two sides of the two ends of the unit through rivets; the structural damping pad is arranged at the right-angle buckling position of the surface / back plate and is applied in a full-length manner; the sound absorption assembly is clamped in the clamping groove of the vertical supporting profile and has the sound absorption and noise reduction functions.

Description

Technical Field

[0001] The utility model relates to a damping type railway metal sound barrier unit plate suitable for higher speeds, in particular to a railway inserted plate type metal sound barrier composed of a front / back plate, profiles (vertical braces at both ends, middle vertical braces and vertical brace reinforcement members), damping members on the outer sides at both ends, a structural damping pad, and a sound absorption component, belonging to the technical field of vibration and noise reduction in the field of environmental protection. Background Art

[0002] At present, metal sound barriers have been widely used in noise control projects such as railways, highways, and rail transit. At present, the metal sound barriers put into use in China are composed of multiple sound barrier unit plates stacked and inserted into H-shaped steel columns, and rubber parts are mainly installed between the unit plate and the steel column, between the unit plates, and between the bottom unit plate and the foundation of the bridge / subgrade, with the functions of sealing, damping, vibration isolation, and noise reduction. The existing rubber parts of metal sound barriers are not specifically designed, and after installation, problems such as rubber part dislocation, permanent deformation, and unsealed gaps are likely to occur, affecting the anti-fatigue performance and vibration reduction and noise reduction performance of the unit plate.

[0003] The prior art ZL 202020972812.3 discloses a folded plate buckling type railway metal sound barrier unit plate, which has the advantages of light weight, good stress, firmly fixed sound absorption cotton, excellent anti-fatigue performance, good noise reduction effect, and simple assembly. To further enhance the buffering and sealing effects between the unit plate and the steel column, strengthen the damping function, and when used for higher speed lines of 400 kilometers per hour, peak shaving and load reduction are carried out on the pulsating wind pressure of the train, which is more beneficial to the stress safety of the unit plate, the steel column, and the bolt foundation. The utility model provides a damping type railway metal sound barrier unit plate suitable for higher speeds, which has an enhanced damping function, can effectively weaken the pulsating peak load, reduce the generation of secondary noise, improve the anti-fatigue performance of the unit plate, and enhance the sealing, damping, vibration isolation, and noise reduction performance of the metal sound barrier. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a damping type railway metal sound barrier unit plate suitable for higher speeds in view of the problems existing in the rubber parts of the existing metal sound barrier unit plates, solve the problems such as rubber part dislocation, permanent deformation, and unsealed gaps, have an enhanced damping function, reduce secondary noise, improve the anti-fatigue performance of the unit plate, and enhance the sealing, damping, vibration isolation, and noise reduction performance of the metal sound barrier.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A damping type railway metal sound barrier unit plate suitable for higher speeds, characterized by: comprising a panel, a back panel, a profile, an outer damping member, a structural damping pad, and a sound absorbing component. The panel and the back panel are integrally bent and formed, and a combined frame is formed by folding the panels together; the profile includes three parts, namely, the two end vertical supports, the middle vertical support, and the vertical support reinforcement, all of which are installed inside the face / back panel buckling frame, the two end vertical supports and the middle vertical support support the sound absorbing component, and the vertical support reinforcement fixes the two end vertical supports and the middle vertical support; the outer damping member adopts a double-tube rubber strip, and solid EPDM foam rubber is inserted into the tube; there are four outer damping members, which are fixed to the two ends of the combined frame by rivets; the structural damping pad is set at the upper and lower inner buckling angles of the panel and the back panel; the sound absorbing component is clamped in the card slot of the vertical support profile, and has the function of sound absorption and noise reduction.

[0007] Preferably, the metal unit panel surface / back panel is made of aluminum alloy sheet material, which is integrally bent and formed, and the unit panel frame is formed by folding and snapping.

[0008] Preferably, the profile (the vertical supports at both ends, the middle vertical support and the vertical support reinforcement) is formed by integrated processing of an aluminum alloy profile, and is provided with a groove for clamping the sound absorbing component.

[0009] Preferably, the profile includes vertical supports at both ends, a middle vertical support and vertical support reinforcements, all of which are arranged in the cavity formed by the unit board panel and the back panel; as the name suggests, the vertical supports at both ends are located at the two ends of the cavity, the middle vertical support is located in the middle of the cavity, and the vertical support reinforcements are located at the upper and lower parts of the vertical supports at both ends and the middle vertical support, and there are a total of 6 vertical support reinforcements.

[0010] Preferably, the structural damping pad is arranged at the upper and lower inner buckling corners of the face / back plate, and is located in a shell formed by the buckling of the face / back plate.

[0011] Preferably, the sound absorbing component is composed of a sound absorbing material, a wrapping material, and a supporting material.

[0012] Preferably, the outer damping members at both ends are installed on both sides of the unit plate and fixed with blind rivets, and have sealing, damping, vibration isolation and noise reduction performance.

[0013] Preferably, the outer damping members at both ends are composed of two hollow rubber tubes and a connecting pad, the hollow rubber tubes and the connecting pads are integrally formed, and the hollow rubber tubes have built-in damping foam strips.

[0014] Preferably, the hollow rubber tube and the connecting pad are made of EPDM rubber.

[0015] Preferably, the double-tube hollow internal damping foam strip is EPDM foam rubber.

[0016] Preferably, the inner structural damping pad is ethylene propylene diene monomer (EPDM) foamed rubber.

[0017] Preferably, the damping members on the outer sides at both ends contain foamed rubber strips to increase elasticity and damping effect.

[0018] Preferably, the damping members on the outer sides at both ends are arranged between the unit plate and the steel column, closely attached and sealed, to strengthen the damping performance, which is beneficial to improving the anti-fatigue effect of the sound barrier.

[0019] Preferably, the damping members on the outer sides at both ends (including the structural damping pad) are arranged in a full-length manner.

[0020] The advantages of the present utility model are as follows:

[0021] The present utility model is a damping type railway metal sound barrier unit plate suitable for higher speeds. The damping members on the outer sides at both ends are used as rubber pads between the plate and the column. By utilizing the stretchable elasticity of the rubber tube and the rubber inside the rubber tube, the anti-fatigue performance of the unit plate is improved, secondary noise generation between the plate body and the column is prevented, the overall damping performance of the sound barrier is strengthened, and the noise reduction effect of the sound barrier is enhanced. At the same time, a structural damping pad is arranged at the fastening position of the unit plate surface / back plate to improve the anti-impact ability of the unit plate and the anti-fatigue performance of the unit plate, thereby enhancing the sealing, damping, vibration isolation and noise reduction performance of the sound barrier; finally, profile bars for vertical support fixing are arranged on the upper and lower sides of the vertical supports at both ends and the middle vertical support, which can effectively improve the anti-impact strength of the folding plates of the surface / back plate and ensure the integrity of the unit plate.

[0022] The following further illustrates the present utility model through the drawings and specific embodiments, but it does not mean a limitation to the protection scope of the present utility model. Brief Description of the Drawings

[0023] Figure 1 is an axonometric explosion structure schematic diagram of a damping type railway metal sound barrier unit plate suitable for higher speeds of the present utility model. ( Figure 1 It should be an axonometric explosion structure schematic diagram, Figure 2 is a side structure schematic diagram)

[0024] Figure 2 is a side structure schematic diagram of a damping type railway metal sound barrier unit plate suitable for higher speeds of the present utility model.

[0025] Figure 3 is a structural cross-sectional schematic diagram of a damping type railway metal sound barrier unit plate suitable for higher speeds of the present utility model.

[0026] Figure 4 is a schematic diagram of the sound absorption component structure of a damping type railway metal sound barrier unit plate suitable for higher speeds of the present utility model.

[0027] Figure 5It is a schematic structural diagram of the vertical support fixing profiles at both ends of a damping-type railway metal sound barrier unit board suitable for higher speeds in this utility model.

[0028] Figure 6 It is a schematic structural diagram of the vertical support profile in a damping-type railway metal sound barrier unit board suitable for higher speeds in this utility model.

[0029] Figure 7 It is a schematic structural diagram of the vertical support fixing part profile of a damping-type railway metal sound barrier unit board suitable for higher speeds in this utility model.

[0030] Figure 8 It is a schematic diagram of the internal structural damping part of a damping-type railway metal sound barrier unit board suitable for higher speeds in this utility model.

[0031] Figure 9 It is a schematic diagram of the damping parts on the outer sides at both ends of a damping-type railway metal sound barrier unit board suitable for higher speeds in this utility model.

[0032] Description of the main reference numerals:

[0033] 1 Unit board panel 2 Unit board back panel 3 Vertical support profiles at both ends 4 Sound absorption component

[0034] 4-1 Sound absorption material 4-2 Wrapping material 4-3 Support material 5 Middle vertical support profile

[0035] 6 Vertical support fixing part profile 7 Internal structural damping part 8 Damping parts on the outer sides at both ends

[0036] 8-1 EPDM foam strip 8-2 Connecting pad 8-3 Hollow rubber tube Detailed implementation manners

[0037] Such as Figures 1 to 3As shown in the figure, it is a schematic structural diagram of a damping type railway metal sound barrier unit board suitable for higher speeds in the present utility model. Among them, 1 is the unit board face plate, 2 is the unit board back plate, 3 is the vertical support profile, 4 is the sound absorption component, 5 is the middle vertical support profile, 6 is the vertical support fixing profile, 7 is the internal structure damping pad, and 8 is the damping pads on both outer sides at both ends. The unit board face plate 1 and the unit board back plate 2 are clamped and fixed by the way of folding plate buckling. Panel side plates and back plate side plates are respectively arranged at both ends to form a unit board frame; The vertical support profiles 3 at both ends and the middle vertical support profile 5 are installed in the frame cavity formed by the face and back plates. There are two vertical support profiles 3 at both ends; The sound absorption component 4 is composed of sound absorption material, wrapping material and support material, and the sound absorption component 4 is clamped in the groove between the vertical support profiles 3 at both ends and the middle vertical support profile 5. There are two sound absorption components 4; The vertical support fixing profile 6 is clamped at the upper and lower ends of the vertical support profiles 3 at both ends and the middle vertical support profile 5, and is clamped in the cavity formed by the unit board face plate 1 and the unit board back plate 2; The internal structure damping pad 7 is arranged at the right angle where the unit board face plate 1 and the unit board back plate 2 are buckled and is pasted throughout the length. The damping pads 8 on both outer sides at both ends are installed at the bilateral positions at both ends of the unit board and are firmly fixed by blind rivets.

[0038] As Figure 2 shown in the figure, it is a schematic cross-sectional structure diagram of a damping type railway metal sound barrier unit board suitable for higher speeds in the present utility model. The folding plate buckling method of the unit board adopts the form that the unit board face plate 1 wraps the unit board back plate 2, and round holes are opened on the face plate.

[0039] As Figure 4 shown in the figure, the sound absorption component 4 is composed of a sound absorption material 4-1, a wrapping material 4-2 and a support material 4-3 wrapped. The wrapping material 4-2 wraps the whole sound absorption material 4-1, and the support material 4-3 wraps outside the wrapping material 4-2.

[0040] As Figures 5 to 6 shown in the figure, one groove is arranged on the vertical support profiles 3 at both ends, and two grooves are arranged on the middle vertical support 5, which are respectively used for clamping the sound absorption component 4.

[0041] As Figure 7 shown in the figure, the vertical support fixing profile 6 is integrally formed and is used for clamping and fixing the vertical support profiles 3 at both ends and the middle vertical support 5.

[0042] As Figure 8 shown is the schematic structural diagram of the internal structure damping pad 7. It is ethylene propylene diene monomer (EPDM) foamed rubber and is arranged at the long side joint of the unit board face plate 1 and the unit board back plate 2.

[0043] As Figure 9The following is a schematic diagram of the structure of the damping components 8 on both outer sides of the two ends. Among them, 8-1 is an ethylene propylene diene monomer (EPDM) foam rubber strip, 8-2 is a connecting pad, and 8-3 is a hollow rubber tube. Two hollow rubber tubes 8-3 are connected to the connecting pad 8-2. The hollow rubber tube and the connecting pad are both made of EPDM rubber strips. The EPDM foam rubber strip 8-1 is configured throughout the length inside the hollow rubber tube and is fixed at the bilateral positions on both ends of the unit board by blind rivets. The hollow rubber tube and the connecting pad are integrally formed, and the prototype foam rubber strip is placed inside the hollow rubber tube.

[0044] The utility model relates to a damping type railway metal sound barrier unit board suitable for higher speeds, which is composed of a folded plate snap-fit type front / back board frame, with vertical support profiles built-in for clamping sound absorption components. Damping components on both outer sides of the two ends are arranged throughout the length on both sides. The overall unit board is firmly fixed, and the damping performance between the board body and the column is good. An internal structure damping component is laid at the upper and lower fitting positions of the snap-fit front / back board to reduce the impact of high-frequency loads on the front / back board and improve the fatigue resistance of the unit board.

[0045] The utility model relates to a damping type railway metal sound barrier unit board suitable for higher speeds, which adopts damping components on both outer sides of the two ends and is fixed on the front board and the back board of the unit board between the sound barrier unit board and the column, and is used for the flexible contact between the unit board and the steel column to play the roles of damping, shock absorption, sealing and sound insulation.

[0046] The utility model relates to a damping type railway metal sound barrier unit board suitable for higher speeds, which uses damping components on both outer sides of the two ends as rubber pads between the board and the column. By utilizing the stretchable elasticity of the hollow rubber tube, the fatigue resistance of the unit board is improved, secondary noise generation between the board body and the column is prevented, the overall damping performance of the sound barrier is strengthened, and the noise reduction effect of the sound barrier is enhanced.

Claims

1. A damping type railway metal sound barrier unit plate suitable for higher speeds, characterized in that, It includes a panel, a back panel, vertical support profiles at both ends, a middle vertical support profile, a vertical support fixing profile, damping members on the outer sides at both ends, an internal structure damping pad, and a sound absorption assembly; The panel and the back panel are of an integrally bent and formed structure, and the panel and the back panel form a combined frame by means of folding plate buckling; The vertical support profiles at both ends and the middle vertical support profile are installed inside the combined frame, and the vertical support profiles at both ends and the middle vertical support profile are used to support the sound absorption assembly; The vertical support fixing profile is used for clamping and fixing the vertical support profiles at both ends and the middle vertical support, with at least 6; The damping members on the outer sides at both ends are double-tube rubber strips, and there are at least 4 of the outer damping members, and the outer damping members are fixed to the opposite side surfaces of the combined frame by rivets; The internal structure damping pad is arranged at the buckling right angle of the panel and the back panel; The sound absorption assembly is clamped in the card slot of the vertical support profile.

2. The damping type railway metal sound barrier unit board suitable for higher speeds according to claim 1, characterized in that: The panel and the back panel are clamped and fixed by means of folding plate buckling.

3. The damping type railway metal sound barrier unit plate suitable for higher speeds according to claim 1, characterized in that: The damping members on the outer sides at both ends are composed of a hollow rubber tube, a connecting pad, and a foamed rubber strip. There are 2 hollow rubber tubes and they are integrally formed with the connecting pad. An EPDM foamed rubber strip is built in the hollow rubber tube throughout the length. The hollow rubber tube and the connecting pad are both integrally formed. One side of the foamed rubber strip close to the hollow rubber tube contacts the steel column, and the other side of the foamed rubber strip contacts the panel and the back panel.

4. A damping type railway metal sound barrier unit board suitable for higher speeds according to claim 1, characterized in that: The internal structure damping pad is made of EPDM foamed rubber.

5. A damping type railway metal sound barrier unit board suitable for higher speeds according to claim 1, characterized in that The vertical support fixing profile is used for clamping and fixing the vertical support profiles at both ends and the middle vertical support, with at least 6.

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