Telescopic sound barrier unit plate

Abstract

According to the telescopic sound barrier unit plate, a sound absorption assembly is fixedly arranged in a cavity of a plate body in the longitudinal direction; the two ends of the plate body are open and provided with telescopic assemblies respectively. The telescopic assembly comprises a sectional material embedded in the end opening of the plate body and a telescopic piece arranged in the sectional material in a sliding mode. Sliding sleeves are respectively suspended at the top and the bottom in the sectional material; one end of the guide rod is fixedly connected with the telescopic piece, and the other end of the guide rod is a movable end; one end of the tension spring is fixedly connected with the sliding sleeve, and the other end of the tension spring is fixedly connected with the end head of the movable end. By means of the telescopic assembly, on the premise that the original function of the sound barrier unit plate is not changed, the original length can be kept before installation, installation is convenient, the length can be freely increased by 0-15 cm on the basis of the original length after installation, and the telescopic assembly is used for resisting deformation of a totally-closed sound barrier steel structure and the change of the distance between stand columns due to the fact that an expansion joint is affected by temperature. Therefore, the sound barrier unit plates are prevented from falling off between the stand columns, and safety of railway operation is guaranteed.

Description

Technical Field

[0001] The present invention relates to a telescopic plate, and more particularly to a telescopic sound barrier unit plate, belonging to the technical field of metal sound barrier unit plates. Background Art

[0002] With the development of the economy, high-speed railways, urban rail transit and urban roads have also developed rapidly. At the same time, noise pollution has affected the residents along the line.

[0003] Sound barriers play an important role in traffic noise control technology. With the increasing requirements for noise pollution prevention and control, many noise-sensitive points adopt the form of fully enclosed sound barriers. Different from the vertical sound barriers, the unit plates of the fully enclosed sound barriers are installed from the top down between two columns. As long as the length of the unit plate is less than the net distance between the columns and greater than the net distance minus the size of the flange plate of one side column, the unit plate can be inserted into the column and will not fall off.

[0004] Since the fully enclosed sound barrier is a closed-loop structure, the unit plates cannot be installed from the open end of the column like the vertical sound barriers. The unit plates are basically installed by flat insertion, which has relatively high requirements for dimensions. The length of the unit plate can only be less than the net distance between the columns minus the size of the flange plate of one side column to meet the installation conditions. This structural form is extremely likely to cause the risk of the unit plate falling off in the case of column deformation.

[0005] At the same time, due to the influence of climate temperature, the distance between the two side columns of the sound barrier at the bridge expansion joint also changes with the temperature. High temperature may cause the unit plate to be compressed and deformed, and low temperature may cause the risk of the unit plate falling off. These risks even threaten the operation safety of trains.

[0006] At present, the metal sound barrier unit plates are basically assembled by bending the four sides of the metal plate, and the corresponding length dimensions are customized according to the on-site column spacing dimensions. Due to the fixed dimensions and the properties of the materials, they cannot cope with the risk of the unit plate falling off caused by the deformation of the on-site steel structure and the change of the expansion joint, which affects the operation safety of trains.

[0007] The patent specification of the invention patent with the application number 202010516748.8 discloses a telescopic sound barrier unit board. The telescopic device of the sound barrier unit board is composed of the sound barrier unit board body and a U-shaped shield, and the two are fixed by screws. After the construction of the sound barrier unit board project is completed, the relative position between the shield and the column remains fixed. When the column spacing changes, the sound barrier unit board body displaces relative to the shield through a sliding groove. The principle of use of this structure has little significance for the spring provided inside the shield. At the same time, when using the fixing method with screws, during the use process, due to the telescopic change, it may touch the flange of the column, resulting in the failure of the telescopic function; during the use of this structural unit board, the stress structure is concentrated at the connection between the shield and the sound barrier unit board body. When subjected to large vibrations and wind pressures, the shield of the sound barrier unit board may be torn and deformed; the initial state of the telescopic device of this sound barrier unit board is in an expanded state, and when installing the sound barrier, the telescopic device needs to be compressed for installation, which causes inconvenience to the installation.

[0008] Therefore, it is necessary to provide a metal sound barrier unit board suitable for fully enclosed sound barriers and bridge expansion joints. Summary of the Invention

[0009] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a telescopic sound barrier unit board.

[0010] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0011] A telescopic sound barrier unit board, comprising a board body, a sound absorption component, and a telescopic component;

[0012] The sound absorption component is longitudinally fixed in the cavity of the board body; both ends of the board body are open and are respectively provided with telescopic components;

[0013] The telescopic component includes a profile embedded in the port of the board body and a telescopic member slidably disposed within the profile;

[0014] Sliding sleeves are respectively suspended at the top and bottom within the profile; a guide rod sliding along the sliding sleeve, one end of which is fixedly connected to the telescopic member, and the other end is a movable end; and a tension spring is sleeved on the movable end, one end of the tension spring is fixedly connected to the sliding sleeve, and the other end is fixedly connected to the end of the movable end.

[0015] The above-mentioned board body is formed by bending a front panel and a back panel and connecting them by a snap-fit method:

[0016] Both the upper and lower parts of the back panel are bent into convex grooves,

[0017] The upper part of the front panel is bent into an L shape and matches the convex groove edge of the upper part of the back panel;

[0018] The lower part of the front panel is bent into a U shape and matches the convex groove edge of the lower part of the back panel;

[0019] The panel is provided with a plurality of through holes.

[0020] The top and bottom of the above-mentioned sound absorption component are respectively embedded in the cavity of the plate body through clamping grooves;

[0021] The sound absorption component includes a laminated sound absorption material plate and an FC plate, and the FC plate is placed on the side close to the panel.

[0022] The above-mentioned guide rod is provided with a rope hole, and the pull rope passing through the rope hole is led out through the pull hole at the top of the plate body.

[0023] The top surface and the bottom surface of the above-mentioned telescopic member are respectively provided with sliding grooves, which are matched with the sliding rails arranged on the inner top surface and the inner bottom surface of the profile.

[0024] P-shaped rubber strips are respectively arranged at both ends of the above-mentioned plate body,

[0025] After the profile is fixedly connected to the P-shaped rubber strip through rivets, it is fixed inside the port of the plate body.

[0026] Furthermore, a rivet groove is provided on the side surface of the above-mentioned telescopic member.

[0027] The beneficial effects of the present invention are as follows:

[0028] A telescopic sound barrier unit board of the present invention, through the telescopic components at both ends of the sound barrier unit board, without changing the original use function of the sound barrier unit board, can not only maintain the original length state of the sound barrier unit board for easy installation before installation, but also can freely increase the length by 0-15 cm on the basis of the original length of the sound barrier unit board after installation through the telescopic components, so as to resist the deformation of the steel structure of the fully enclosed sound barrier and the change of the distance between columns caused by the influence of temperature on the expansion joint, thereby preventing the sound barrier unit board from falling off between the columns and causing safety in railway operation.

[0029] A telescopic sound barrier unit board of the present invention has a freely telescopic length, the installation stress position is the sound barrier unit board body, and the original size of the sound barrier unit board before installation is the installation size, and it is the telescopic size after installation. It is suitable for fully enclosed sound barriers and bridge expansion joints, and has strong practicability and wide applicability. Description of the Drawings

[0030] Figure 1 It is a schematic diagram of the external structure of the telescopic sound barrier unit board.

[0031] Figure 2 It is a schematic diagram of the structure of the sound absorption component.

[0032] Figure 3 It is a cross-sectional view of the unit board.

[0033] Figure 4 It is a schematic diagram of the assembled structure of the telescopic component.

[0034] Figure 5 Schematic diagram of the original installation state of the telescopic component.

[0035] The meanings of the labels in the attached drawings are as follows: 1. Plate body, 2. Telescopic component, 3. Rivet, 4. P-shaped rubber strip, 5. Pulling rope, 6. FC board, 7. Sound-absorbing material board, 8. Wrapping material, 9. Card slot, 10. Gasket, 11. Nut, 12. Bolt, 13. Front panel, 14. Back panel, 15. Profile, 16. Telescopic part, 17. Sliding sleeve, 18. Guide rod, 19. Tension spring, 20. Slide groove, 21. Rivet groove, 22. Pulling hole. Specific embodiments

[0036] The present invention will be specifically introduced below in conjunction with the attached drawings and specific embodiments.

[0037] A telescopic sound barrier unit board is composed of a plate body 1, a sound-absorbing component, and a telescopic component 2.

[0038] The sound-absorbing component is composed of a stacked sound-absorbing material board 7 and an FC board 6. Preferably, a wrapping material 8 is further covered on the outer side of the sound-absorbing material board 7; the FC board 6, the sound-absorbing material board 7, and the wrapping material 8 are fixed by a bolt 12 passing through the FC board 6, the sound-absorbing material board 7, and the wrapping material 8 in sequence from one side of the FC board 6 and screwing the gasket 10 and nut 11 on the other side.

[0039] The plate body 1 is composed of a front panel 13 and a back panel 14. The front panel 13 is made of aluminum alloy material, with a number of through holes provided on the surface, and the opening ratio is 20 - 30%. The upper part of the front panel 13 is bent into an L shape, and the lower part is bent into a U shape. The back panel 14 is made of aluminum alloy material, and the upper and lower parts are bent into convex grooves. The L shape of the upper part of the front panel 13 is matched with the convex groove edge of the upper part of the back panel 14, and the U shape of the lower part of the front panel 13 is matched with the convex groove edge of the lower part of the back panel 14, and they are connected by a snap-fit method. After connection, both ends of the plate body 1 are open.

[0040] Through the card slots 9 provided on the top and bottom surfaces, the sound-absorbing component is embedded in the plate body 1. One side of the wrapping material 8 faces the front panel 13, and the sound-absorbing material board 7 is protected by the wrapping material 8. The card slot 9 is made of aluminum alloy material, and the sound-absorbing component is limited by its own structural shape, ensuring that the sound barrier unit board has enough cavities for sound absorption and insulation and will not shake during use. At the same time, this structure provides vertical support for the sound-absorbing component through the FC board 6 to ensure the stability of the structure.

[0041] The telescopic component 2 is arranged at the open ends of both ends of the plate body 1. The telescopic component 2 is composed of a profile 15 and a telescopic part 16.

[0042] The profile 15 is integrally formed by aluminum alloy extrusion. The outer frame dimensions and shape are the same as the internal dimensions and shape at the ports of the plate body 1, and the length is preferably 60 - 80 cm. At both ports of the plate body 1, P-shaped rubber strips 4 are provided. After the profile 15 is fixedly connected to the P-shaped rubber strip 4 through rivets 3, it is fixed inside the ports of the plate body 1.

[0043] The telescopic member 16 is formed by welding aluminum alloy or stainless steel metal. The outer frame dimensions are the same as the inner frame dimensions of the profile 15. The outer side is sealed, and the inner side facing the profile 15 is open. It is welded all around, and one or two rib plates can be arranged in the middle to increase strength. A rivet groove 21 is reserved in the height direction to facilitate the sliding of the telescopic member 16 without being affected by the rivets 3; a sliding groove 20 is reserved in the width direction to avoid the installation components of the guide rod 18 and facilitate the sliding of the telescopic member 16. Matching slide rails are provided on the inner top surface and inner bottom surface of the profile 15. The length of the telescopic member 16 is preferably 90 - 110 cm.

[0044] Inside the profile 15, sliding sleeves 17 are respectively suspended at the top and bottom. The guide rod 18 is placed inside the sliding sleeve 17 and can slide along the sliding sleeve 17. One end of the guide rod 18 is fixedly connected to the telescopic member 16, and the other end is a movable end sleeved with a tension spring 19. One end of the tension spring 19 is fixedly connected to the sliding sleeve 17, and the other end of the tension spring 19 is fixedly connected to the end of the movable end. In the state where the profile 15 is stationary, the tension spring 19 pulls the guide rod 18, and the guide rod 18 is connected to the telescopic member 16 to slide along the sliding sleeve 17, releasing the outward pulling force.

[0045] In the state where the telescopic member 16 is completely released, it can ensure that the telescopic member 16 and the profile 15 overlap by 30 - 40 cm. Coupled with the force interaction between the guide rod 18 and the profile 15, even in extreme cases where the sound barrier unit plate body detaches from the column flange plate, the telescopic member 16 can resist the wind pressure impact brought by the train.

[0046] The guide rod 18 is provided with a rope hole, and the pull rope 5 passing through the rope hole is led out through the pull hole 22 at the top of the plate body 1. When the telescopic member 16 is compressed to one side of the profile 15, the pull rope 5 passes through the upper and lower two guide rods 18 and the pull hole 22 to limit the free sliding of the guide rod 18. This device can ensure that the sound barrier unit plate has the minimum size before the construction and installation of the sound barrier to facilitate the construction of the sound barrier. After the sound barrier unit plate is inserted into the column and the pull rope 5 is pulled out, the telescopic member 16 can pop out freely.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form. Any technical solutions obtained by using equivalent replacements or equivalent transformations fall within the protection scope of the present invention.

Claims

1. A retractable sound barrier unit panel, characterized in that: It includes a plate body, a sound absorbing component, and a telescopic component; The sound absorbing component is fixedly arranged in the cavity of the plate body along the longitudinal direction; both ends of the plate body are open and are respectively equipped with telescopic components; The telescopic assembly includes a profile embedded in the port of the plate body, and a telescopic member slidably disposed in the profile; A sliding sleeve is suspended at the top and bottom of the profile respectively; a guide rod sliding along the sliding sleeve has one end fixedly connected to the telescopic member and the other end being a movable end; and a tension spring is sleeved on the movable end, one end of the tension spring is fixedly connected to the sliding sleeve and the other end is fixedly connected to the end of the movable end.

2. The unit board according to claim 1, characterized in that: The board body is connected by a front panel and a back panel after being bent and fastened: The upper and lower parts of the back plate are both bent to form convex grooves. The upper portion of the panel is bent into an L shape to match the convex groove edge of the upper portion of the back panel; The lower part of the panel is bent into a U shape to match the convex groove edge at the lower part of the back plate; The panel is provided with a plurality of through holes.

3. The unit board according to claim 1, characterized in that: The top and bottom of the sound absorbing component are respectively embedded in the cavity of the plate body through slots; The sound absorbing assembly comprises a stacked sound absorbing material plate and an FC plate, and the FC plate is arranged on a side close to the back plate.

4. The unit board according to claim 1, characterized in that: The guide rod is provided with a rope hole, and the pull rope passing through the rope hole is led out through the pull hole at the top of the plate body.

5. The unit board according to claim 1, characterized in that: The top surface and the bottom surface of the telescopic member are respectively provided with sliding grooves, which match the sliding rails arranged on the inner top surface and the inner bottom surface of the profile.

6. The unit board according to claim 1, characterized in that: The two ends of the plate body are respectively provided with P-shaped rubber strips, and the profile is fixed in the ends of the plate body after being fixedly connected with the P-shaped rubber strips by rivets.

7. The unit board according to claim 6, characterized in that: The side surface of the telescopic member is provided with a rivet groove.

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