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

Abstract

The invention 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 composed of a face plate, a back plate, two-end vertical supporting sectional materials, a middle vertical supporting sectional material, vertical supporting fixing piece sectional materials, 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 present invention relates to a damping type railway metal sound barrier unit plate suitable for higher speeds, in particular to a railway plug-in plate type metal sound barrier consisting of a face / back plate, a profile (vertical supports at both ends, a middle vertical support and vertical support reinforcements), damping parts at both ends, a structural damping pad and a sound absorbing component, belonging to the field of vibration and noise reduction technology 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 my country are composed of multiple sound barrier unit panels stacked and inserted into H-shaped steel columns, and the rubber parts are mainly installed between the unit panels and the steel columns, between the unit panels, and between the bottom unit panels and the foundation of the bridge / roadbed. They have the functions of sealing, damping, vibration isolation and noise reduction. The existing rubber parts of metal sound barriers are not designed specifically. After installation, the rubber parts are prone to stringing, permanent deformation, and unsealed gaps, which affect the fatigue resistance and vibration reduction and noise reduction performance of the unit panels.

[0003] The prior art ZL 202020972812.3 discloses a folding plate buckled railway metal sound barrier unit plate, which is light in weight, well-stressed, with firm sound-absorbing cotton fixation, excellent fatigue resistance, good noise reduction effect, and easy assembly. In order to further enhance the buffering and sealing effect between the unit plate and the steel column, strengthen the damping function, and use it for lines with a higher speed of 400 kilometers per hour, the pulsating wind pressure of the train is peak-cut and load-reduced, which is more conducive to the force safety of the unit plate, steel column and bolt foundation. The present invention 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 fatigue resistance of the unit plate, and enhance the sealing, damping, vibration isolation and noise reduction performance of the metal sound barrier. Summary of the invention

[0004] The purpose of the present invention is to propose a damping type railway metal sound barrier unit plate suitable for higher speeds, in response to the problems existing in the rubber parts used in the existing metal sound barrier unit plates, which solves the problems of rubber parts stringing, permanent deformation, unsealed gaps, etc., and has the advantages of enhancing the damping function, reducing secondary noise, improving the fatigue resistance of the unit plate, and enhancing the sealing, damping, vibration isolation and noise reduction performance of the metal sound barrier.

[0005] To achieve the above object, the present invention 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 structure damping pad is EPDM foam rubber.

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

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

[0019] Preferably, the outer damping members at both ends (including structural damping pads) are arranged throughout the entire length.

[0020] The advantages of the present invention are:

[0021] The present invention is a damping type railway metal sound barrier unit plate suitable for higher speeds, which uses the outer damping parts at both ends as rubber pads between the plates and columns, and utilizes the elastic elasticity of the rubber hose and the rubber inside the hose to improve the fatigue resistance of the unit plate, prevent the secondary noise between the plate body and the column, strengthen the overall damping performance of the sound barrier, and improve the noise reduction effect of the sound barrier. At the same time, a structural damping pad is set at the joint of the unit plate surface / back plate to improve the impact resistance of the unit plate, improve the fatigue resistance of the unit plate, and then improve the sealing, damping, vibration isolation and noise reduction performance of the sound barrier; finally, the vertical support fixing profiles are set at the upper and lower sides of the vertical supports at both ends and the middle vertical support, which can effectively improve the impact resistance of the surface / back plate folding plate, while ensuring the integrity of the unit plate.

[0022] The present invention is further described below through the accompanying drawings and specific implementation modes, but it is not intended to limit the protection scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model discloses a schematic diagram of the axial explosion structure of a damping type railway metal sound barrier unit plate suitable for higher speeds.

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

[0025] Figure 3 The utility model discloses a cross-sectional schematic diagram of a unit plate structure of a damping railway metal sound barrier suitable for higher speeds.

[0026] Figure 4 The utility model discloses a structural schematic diagram of a sound-absorbing component of a damping-type railway metal sound barrier unit plate suitable for higher speeds.

[0027] Figure 5 The utility model discloses a schematic diagram of a structure of vertical supports fixing profiles at both ends of a damping type railway metal sound barrier unit plate suitable for higher speeds.

[0028] Figure 6The utility model discloses a schematic diagram of the structure of the vertical support profile in a damping type railway metal sound barrier unit plate which is suitable for higher speeds.

[0029] Figure 7 The utility model discloses a schematic diagram of the profile structure of the vertical support fixing parts of a damping type railway metal sound barrier unit plate which is suitable for higher speeds.

[0030] Figure 8 The utility model discloses a schematic diagram of a structural damping component in a unit plate of a damping type railway metal sound barrier which is suitable for higher speeds.

[0031] Fig. 9 It is a schematic diagram of the outer damping parts at both ends of a damping type railway metal sound barrier unit plate suitable for higher speeds.

[0032] Description of main reference numerals:

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

[0034] 4-1 sound absorbing material 4-2 wrapping material 4-3 supporting material 5 vertical support profile

[0035] 6 Vertical support fixing piece profile 7 Internal structure damping piece 8 External damping pieces at both ends

[0036] 8-1 EPDM foam strip 8-2 connection pad 8-3 hollow hose DETAILED DESCRIPTION

[0037] like Figures 1 to 3 The figure shows a schematic diagram of a unit plate structure of a damped railway metal sound barrier suitable for higher speeds according to the present invention. 1 is a unit plate panel, 2 is a unit plate back plate, 3 is a vertical support profile, 4 is a sound absorption component, 5 is a middle vertical support profile, 6 is a vertical support fixing profile, 7 is an internal structure damping component, and 8 is an outer damping pad at both ends. The unit panel face plate 1 and the unit panel back plate 2 are fixed by folding plate buckling, and the two ends are provided with the panel side plate and the back plate side plate, respectively, to form the unit panel frame; the two end vertical support profiles 3 and the middle vertical support profiles 5 are installed in the frame cavity composed of the face and back plates, and the two end vertical support profiles 3 are two pieces; the sound absorption component 4 is composed of sound absorption material, wrapping material, and supporting material, and the sound absorption component 4 is clamped in the groove between the two end vertical support profiles 3 and the middle vertical support profiles 5, and the sound absorption component 4 is two pieces; the vertical support fixing profile 6 is clamped at the upper and lower ends of the two end vertical support profiles 3 and the middle vertical support profiles 5, and is clamped in the cavity formed by the unit panel face plate 1 and the unit panel back plate 2; the internal structure damping pad 7 is set at the right angle of the unit panel face plate 1 and the unit panel back plate 2, and is applied throughout the length. The outer damping parts 8 at both ends are installed at the double sides of the two ends of the unit panel, and are firmly fixed with core-pulling rivets.

[0038] like Figure 2The figure shows a cross-sectional schematic diagram of a unit plate structure of a damping type railway metal sound barrier suitable for higher speeds according to the present invention. The unit plate folding and buckling method adopts the form of a unit plate panel 1 enclosing a unit plate back plate 2, and a circular hole is opened in the panel.

[0039] like Figure 4 As shown, the sound absorbing component 4 is composed of a sound absorbing material 4-1, a wrapping material 4-2 and a supporting material 4-3. The wrapping material 4-2 wraps the entire sound absorbing material 4-1, and the supporting material 4-3 is wrapped around the outside of the wrapping material 4-2.

[0040] like Figures 5-6 As shown, the vertical support profiles 3 at both ends are provided with a groove, and the middle vertical support 5 is provided with two grooves, which are respectively used for clamping the sound absorbing components 4.

[0041] like Figure 7 As shown, the vertical support fixing piece 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] like Figure 8 The figure shows the schematic diagram of the structure of the internal structure damping member 7, which is made of EPDM foam rubber and is arranged at the joint of the long sides of the unit panel face plate 1 and the unit panel back plate 2.

[0043] like Fig. 9 The figure shows the structure of the damping members 8 at both ends. 8-1 is an EPDM foam strip, 8-2 is a connection pad, and 8-3 is a hollow rubber tube. Two hollow rubber tubes 8-3 are connected to the connection pad 8-2. Both the hollow rubber tube and the connection pad are EPDM rubber strips. The EPDM foam strip 8-1 is arranged throughout the hollow rubber tube and fixed to the two sides of the unit board with blind rivets. The hollow rubber tube and the connection pad are both integrated, and the prototype foam strip is built into the hollow rubber tube.

[0044] The present invention is a damping type railway metal sound barrier unit plate suitable for higher speeds, which is composed of a folded plate buckled face / back plate frame, with a built-in vertical support profile for clamping the sound absorption component, and two ends of the two sides are provided with outer damping parts at both ends. The unit plate is firmly fixed as a whole, and the damping performance between the plate body and the column is good. The internal structural damping parts are laid at the upper and lower joints of the buckled face / back plate to reduce the impact of high-frequency loads on the face / back plate and improve the fatigue resistance of the unit plate.

[0045] The present invention is a damping type railway metal sound barrier unit plate suitable for higher speeds. It adopts outer damping parts at both ends, which are fixed on the unit plate panel and back plate between the sound barrier unit plate and the column. It is used for flexible contact between the unit plate and the steel column to play a damping, shock absorption and sealing sound insulation role.

[0046] The present invention is a damping type railway metal sound barrier unit plate suitable for higher speeds. It adopts outer damping parts at both ends as rubber pads between plates and columns, utilizes the retractable elasticity of hollow rubber tubes to improve the fatigue resistance of the unit plate, prevents secondary noise from being generated between the plate body and the column, strengthens the overall damping performance of the sound barrier, and improves the noise reduction effect of the sound barrier.

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, two end vertical support profiles, a middle vertical support profile, a vertical support fixing profile, two end outer side damping parts, an inner structure damping pad, and a sound absorbing component; The front panel and the back panel are integrated bending structures, and the front panel and the back panel are buckled together to form a combined frame; The two end vertical support profiles and the middle vertical support profile are installed inside the combined frame, and the two end vertical support profiles and the middle vertical support profile are used to support the sound absorbing components; The vertical support fixing piece profile is used to clamp and fix the vertical support profiles at both ends and the middle vertical support, at least 6 pieces; The outer damping members at both ends are double-tube rubber strips, and there are at least four outer damping members, which are fixed to two opposite sides of the combined frame by rivets; The inner structure damping pad is arranged at the right angle where the panel and the back panel meet; The sound absorbing component is clamped in the clamping groove of the vertical support profile.

2. The damping type railway metal sound barrier unit plate suitable for higher speed according to claim 1, characterized in that: The front panel and the back panel are fixed by means of folding plate buckling. The front panel is an integrally formed folding plate, and the back panel is also an integrally formed folding plate, and the two are buckled together to form a cavity.

3. The damping type railway metal sound barrier unit plate suitable for higher speed according to claim 1 is characterized by: The outer damping parts at both ends are composed of a hollow rubber hose, a connecting pad, and a foam rubber strip. There are two hollow rubber hoses and they are integrally formed with the connecting pad. An EPDM foam rubber strip is built into the hollow rubber hose throughout its length. The hollow rubber hose and the connecting pad are both integrally formed. One side of the rubber hose of the foam rubber strip is in contact with the steel column, and the other side is in contact with the panel and the back panel.

4. The damping type railway metal sound barrier unit plate suitable for higher speed according to claim 1 is characterized by: The inner structure damping pad is made of EPDM foam rubber.

5. According to claim 1, a damping type railway metal sound barrier unit plate suitable for higher speeds is characterized in that The vertical support fixing profile is used to clamp and fix the vertical support profiles at both ends and the middle vertical support, at least 6 pieces.

6. According to claim 1, a damping type railway metal sound barrier unit plate suitable for higher speeds is characterized by The inner structure damping pad is arranged at the right angle between the panel and the back panel.

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