Telescopic sound barrier device suitable for bridge expansion joint

Abstract

The utility model relates to a telescopic sound barrier device suitable for a bridge expansion joint, which belongs to the field of bridge construction and comprises two upright posts, the two upright posts are respectively arranged on the left side and the right side, and the inner sides of the upright posts are provided with telescopic sound barrier structures for improving the applicability of a sound barrier. The telescopic sound barrier structure comprises first elastic telescopic rods fixedly connected to the inner sides of the stand columns, a mounting frame fixedly connected to the opposite ends of the first elastic telescopic rods on the left side and the right side, two sound insulation plates fixedly connected between the inner top wall and the inner bottom wall of the mounting frame, and sound insulation filler arranged on the inner side of the mounting frame. The driving assembly is arranged on the inner side of the mounting frame. According to the telescopic sound barrier device suitable for the bridge expansion joint, through the synergistic effect of the multi-point elastic supporting system, the sliding opening and the mounting frame and the application of the driving assembly and the polyurethane layer, accurate adaptation and efficient sound insulation of the bridge expansion joint are achieved.

Description

Technical Field

[0001] The utility model relates to a telescopic sound barrier device applicable to bridge expansion joints, belonging to the field of bridge construction. Background Art

[0002] In modern transportation infrastructure, bridges, as important channels connecting different regions, their safety, durability and functionality have attracted much attention.

[0003] However, as a key component of the bridge structure, bridge expansion joints often experience width changes due to factors such as temperature variations, vehicle loads, and material aging. This poses challenges to the overall performance of the bridge and driving safety. Especially in busy traffic areas such as highways and urban expressways, the noise problem of bridge expansion joints is particularly prominent, which not only affects the quality of life of surrounding residents but also may interfere with the driver's attention and increase the risk of traffic accidents. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a telescopic sound barrier device applicable to bridge expansion joints, which has the advantages of simple structure, flexible adjustment, and strong durability.

[0005] To sum up, the utility model provides the following technical solution: A telescopic sound barrier device applicable to bridge expansion joints, including two columns, the two columns are respectively arranged on the left and right, and a telescopic sound barrier structure for improving the applicability of the sound barrier is arranged inside the columns;

[0006] The telescopic sound barrier structure includes a first elastic telescopic rod fixedly connected to the inner side of the column, an installation frame fixedly connected to the opposite ends of the first elastic telescopic rods on the left and right sides, two sound insulation boards fixedly connected between the inner top wall and the inner bottom wall of the installation frame, a sound insulation filler arranged inside the installation frame, a driving component arranged inside the installation frame, a connecting rod fixedly connected to the bottom of the driving component, a connecting frame fixedly connected to the bottom end of the connecting rod, a second elastic telescopic rod fixedly connected to the inner top wall of the connecting frame, and a fitting plate fixedly connected to the bottom end of the second elastic telescopic rod.

[0007] Further, the number of the first elastic telescopic rods on both the left and right sides is three, and the three first elastic telescopic rods on the left side are all fixedly connected to the inner left wall of the left column, and the three first elastic telescopic rods on the right side are all fixedly connected to the inner right wall of the right column, and the three first elastic telescopic rods on the same side are arranged at equal intervals in the vertical direction.

[0008] The beneficial effect of adopting the above further scheme is: By respectively arranging three first elastic telescopic rods on the left and right columns at equal intervals in the vertical direction and fixedly connecting them to the inner side walls of the columns, the balanced support and multi-point fixation of the installation frame and its internal components are realized.

[0009] Furthermore, a sliding opening adapted to the installation frame is provided on the opposite side walls of the left and right columns.

[0010] The beneficial effect of adopting the above further solution is that the opening of the sliding opening enables the installation frame to move freely between the columns, thereby automatically adjusting according to the actual width of the bridge expansion joint.

[0011] Furthermore, the driving assembly includes a fixed block fixedly connected to the inner bottom wall of the mounting frame, two support plates fixedly connected to the inner bottom wall of the fixed block, a rotating rod rotatably connected between opposite sides of the two support plates, a driving wheel fixedly connected to the outer side of the rotating rod, a first bevel gear fixedly connected to the left and right ends of the rotating rod respectively, a second bevel gear meshed with the top of the first bevel gear, a threaded rod fixedly connected to the inner side of the center of the second bevel gear, and a threaded block threadedly connected to the outer side of the threaded rod.

[0012] The beneficial effect of adopting the above further scheme is that efficient and precise control of the position of the bonding plates in the retractable sound barrier device is achieved through the driving component.

[0013] Furthermore, the fixing block is located on the front side of the sound insulation filler, and a recess matched with the fixing block is provided at the bottom of the front sound insulation board, and a dial opening matched with the driving wheel is provided on the front side of the fixing block.

[0014] The beneficial effect of adopting the above further solution is that the toggle opening adapted to the driving wheel provided on the front side of the fixing block provides a convenient operating point for external operation.

[0015] Furthermore, the two support plates are respectively arranged on the left side and the right side of the inner bottom wall of the fixed block, and the left end of the rotating rod moves in sequence to penetrate the right side wall of the left support plate and the left side wall of the left support plate and extends to the inner side of the center of the left second bevel gear and is fixedly connected to the left second bevel gear, and the right end of the rotating rod moves in sequence to penetrate the left side wall of the right support plate and the right side wall of the right support plate and extends to the inner side of the center of the right second bevel gear and is fixedly connected to the right second bevel gear.

[0016] The beneficial effect of adopting the above further solution is that the design provides a stable support foundation for the rotating rod by accurately arranging the support plates on both sides of the inner bottom wall of the fixed block, thereby ensuring the overall rigidity and balance of the transmission system.

[0017] Furthermore, the top end of the threaded rod is rotatably connected to the inner top wall of the fixed block, and the bottom end of the threaded rod is rotatably connected to the inner bottom wall of the fixed block, the connecting rod is fixedly connected to the bottom of the threaded block, and the bottom end of the connecting rod moves through the inner bottom wall of the fixed block and the inner bottom wall of the mounting frame in turn and is fixedly connected to the connecting frame on the same side.

[0018] The beneficial effects of adopting the above further solution are as follows: By firmly rotatably connecting the top end of the threaded rod to the inner top wall of the fixed block and the bottom end to the inner bottom wall, the stability and reliability of the threaded rod during rotation are ensured. This design enables the threaded rod to serve as the core component of the driving mechanism and effectively converts rotational motion into linear motion.

[0019] Furthermore, the number of the fitting plates is one. The fitting plate is fixedly connected between the bottom ends of the second elastic telescopic rods on the left and right sides, and a polyurethane layer is arranged at the bottom of the fitting plate.

[0020] The beneficial effects of adopting the above further solution are as follows: The polyurethane layer has excellent wear resistance, good elasticity and buffering performance, and can adapt to the small deformations of the bridge expansion joint caused by temperature changes or vehicle loads.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] By adopting the multi-point elastic support system, the coordinated action of the sliding opening and the installation frame, the driving component, and the application of the polyurethane layer, the precise adaptation and efficient sound insulation of the bridge expansion joint are realized. It can not only effectively reduce the noise pollution at the bridge expansion joint but also has good structural stability and durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a front view of the present utility model;

[0025] Figure 3 is a three-dimensional view of the column in the structure of the present utility model.

[0026] Description of the reference numerals:

[0027] 1, column; 2, first elastic telescopic rod; 3, installation frame; 4, sound insulation board; 5, sound insulation filler; 6, connecting rod; 7, connecting frame; 8, second elastic telescopic rod; 9, fitting plate; 901, polyurethane layer; 10, fixed block; 11, support plate; 12, rotating rod; 13, driving wheel; 14, first bevel gear; 15, second bevel gear; 16, threaded rod; 17, threaded block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Please refer to Figures 1-3 , a telescopic sound barrier device applicable to bridge expansion joints, including two columns 1, which are respectively arranged on the left and right sides. An expandable sound barrier structure for improving the applicability of the sound barrier is arranged inside the column 1.

[0029] As Figure 1As shown, the telescopic sound barrier structure includes a first elastic telescopic rod 2 fixedly connected to the inner side of the column 1, a mounting frame 3 fixedly connected to the opposite ends of the first elastic telescopic rod 2 on the left and right sides, two sound insulation boards 4 fixedly connected between the inner top wall and the inner bottom wall of the mounting frame 3, a sound insulation filler 5 arranged on the inner side of the mounting frame 3, a driving assembly arranged on the inner side of the mounting frame 3, a connecting rod 6 fixedly connected to the bottom of the driving assembly, a connecting frame 7 fixedly connected to the bottom end of the connecting rod 6, a second elastic telescopic rod 8 fixedly connected to the inner top wall of the connecting frame 7, and a bonding plate 9 fixedly connected to the bottom end of the second elastic telescopic rod 8.

[0030] It should be noted that the number of the first elastic telescopic rods 2 on the left and right sides is three, and the three first elastic telescopic rods 2 on the left side are fixedly connected to the inner left wall of the left column 1, and the three first elastic telescopic rods 2 on the right side are fixedly connected to the inner right wall of the right column 1, and the three first elastic telescopic rods 2 on the same side are arranged in sequence and equidistantly in the up and down direction.

[0031] By arranging three first elastic telescopic rods 2 equidistantly arranged in the vertical direction on the left and right side columns 1 respectively and fixing them to the inner side walls of the columns 1 respectively, balanced support and multi-point fixation of the installation frame 3 and its internal components are achieved.

[0032] The opposite side walls of the left and right side columns 1 are provided with sliding openings adapted to the installation frame 3. The opening of the sliding openings enables the installation frame 3 to move freely between the columns 1, thereby automatically adjusting according to the actual width of the bridge expansion joint.

[0033] The driving assembly includes a fixing block 10 fixedly connected to the inner bottom wall of the mounting frame 3, two supporting plates 11 fixedly connected to the inner bottom wall of the fixing block 10, a rotating rod 12 rotatably connected between opposite sides of the two supporting plates 11, a driving wheel 13 fixedly connected to the outer side of the rotating rod 12, a first bevel gear 14 fixedly connected to the left and right ends of the rotating rod 12 respectively, a second bevel gear 15 meshed with the top of the first bevel gear 14, a threaded rod 16 fixedly connected to the inner side of the center of the second bevel gear 15, and a threaded block 17 threadedly connected to the outer side of the threaded rod 16.

[0034] The driving assembly realizes efficient and precise control of the position of the bonding plate 9 in the retractable sound barrier device.

[0035] The fixing block 10 is located on the front side of the sound insulation filler 5 , and a recess matched with the fixing block 10 is provided at the bottom of the front sound insulation board 4 , and a dial opening matched with the driving wheel 13 is provided on the front side of the fixing block 10 .

[0036] The toggle opening on the front side of the fixing block 10 and adapted to the driving wheel 13 provides a convenient operation point for external operation.

[0037] Two support plates 11 are respectively arranged on the left side of the inner bottom wall of the fixed block 10 and the right side of the inner bottom wall. The left end of the rotating rod 12 sequentially passes through the right side wall and the left side wall of the left support plate 11 movably and extends to the inner side of the center of the left second bevel gear 15 and is fixedly connected to the left second bevel gear 15. And the right end of the rotating rod 12 sequentially passes through the left side wall and the right side wall of the right support plate 11 movably and extends to the inner side of the center of the right second bevel gear 15 and is fixedly connected to the right second bevel gear 15.

[0038] This design provides a stable support foundation for the rotating rod 12 by precisely arranging the support plates 11 on both sides of the inner bottom wall of the fixed block 10, ensuring the overall rigidity and balance of the transmission system.

[0039] The top end of the threaded rod 16 is rotatably connected to the inner top wall of the fixed block 10, and the bottom end of the threaded rod 16 is rotatably connected to the inner bottom wall of the fixed block 10. The connecting rod 6 is fixedly connected to the bottom of the threaded block 17, and the bottom end of the connecting rod 6 sequentially passes through the inner bottom wall of the fixed block 10 and the inner bottom wall of the installation frame 3 movably and is fixedly connected to the connecting frame 7 on the same side.

[0040] By stably rotatably connecting the top end of the threaded rod 16 to the inner top wall of the fixed block 10 and the bottom end to the inner bottom wall, the stability and reliability of the threaded rod 16 during rotation are ensured. This design enables the threaded rod 16 to serve as the core component of the driving mechanism and effectively convert the rotational motion into linear motion.

[0041] The number of the fitting plates 9 is one. The fitting plates 9 are fixedly connected between the bottom ends of the left and right second elastic telescopic rods 8. A polyurethane layer 901 is arranged at the bottom of the fitting plate 9. The polyurethane layer 901 has excellent wear resistance and good elasticity and buffering performance, and can adapt to the small deformations of the bridge expansion joint caused by temperature changes or vehicle loads.

[0042] The working principle of the above embodiment is as follows:

[0043] The device adopts three first elastic telescopic rods 2 arranged at equal intervals in the up and down direction on each of the left and right sides, which are respectively fixed to the inner side walls of the columns 1. This multi-point support design not only enhances the stability of the structure but also can perform adaptive adjustment according to the small changes of the bridge expansion joint, ensuring that the installation frame 3 and its internal components always maintain a stable state. Moreover, the sliding openings formed on the opposite side walls of the columns 1 are adapted to the installation frame 3, allowing the installation frame 3 to slide freely between the columns 1, enabling the sound barrier device to automatically adjust its position with the change of the width of the bridge expansion joint, ensuring that the fitting plate 9 always closely fits the bridge deck and effectively isolating noise;

[0044] By controlling the rotation of the driving wheel 13, the driving wheel 13 further drives the rotating rod 12 to rotate. The rotating rod 12 further drives the threaded rod 16 to rotate through the first bevel gear 14 and the second bevel gear 15. Due to the threaded connection between the threaded rod 16 and the threaded block 17, the rotational movement of the threaded rod 16 will be converted into a linear movement of the threaded block 17. The threaded block 17 further drives the connecting frame 7 to move up and down through the connecting rod 6. The connecting frame 7 further drives the fitting plate 9 installed below it to move, so as to respond to the telescopic change of the bridge;

[0045] The fitting plate 9 is fixedly connected between the bottoms of the second elastic telescopic rods 8 on the left and right sides to form an integral sound insulation barrier. The polyurethane layer 901 provided at the bottom thereof utilizes the excellent wear resistance, elasticity and buffering performance of the polyurethane material to effectively cope with the minute deformation of the bridge expansion joint caused by temperature change or vehicle load. When the polyurethane layer 901 is subjected to an external force, it can undergo a certain degree of elastic deformation, absorb and disperse the stress from the bridge expansion joint. This deformation adaptability not only protects the fitting plate 9 from damage, but also ensures the close fit between the sound barrier device and the bridge deck, maintaining a good sound insulation effect.

Claims

1. A retractable sound barrier device suitable for use at a bridge expansion joint, comprising two columns (1), characterized in that: The two upright posts (1) are arranged on the left and right sides respectively, and a telescopic sound barrier structure for improving the applicability of the sound barrier is provided on the inner side of the upright posts (1); The telescopic sound barrier structure comprises a first elastic telescopic rod (2) fixedly connected to the inner side of a column (1), a mounting frame (3) fixedly connected to the opposite ends of the first elastic telescopic rod (2) on the left and right sides, two sound insulation boards (4) fixedly connected between the inner top wall and the inner bottom wall of the mounting frame (3), a sound insulation filler (5) arranged on the inner side of the mounting frame (3), a driving assembly arranged on the inner side of the mounting frame (3), a connecting rod (6) fixedly connected to the bottom of the driving assembly, a connecting frame (7) fixedly connected to the bottom end of the connecting rod (6), a second elastic telescopic rod (8) fixedly connected to the inner top wall of the connecting frame (7), and a bonding plate (9) fixedly connected to the bottom end of the second elastic telescopic rod (8).

2. A retractable sound barrier device suitable for bridge expansion joints according to claim 1, characterized in that: The number of the first elastic telescopic rods (2) on the left and right sides is three, and the three first elastic telescopic rods (2) on the left side are all fixedly connected to the inner left side wall of the left column (1), and the three first elastic telescopic rods (2) on the right side are all fixedly connected to the inner right side wall of the right column (1), and the three first elastic telescopic rods (2) on the same side are arranged in sequence and equidistantly in the up-down direction.

3. The retractable sound barrier device suitable for bridge expansion joints according to claim 1, characterized in that: The opposite side walls of the left and right columns (1) are each provided with a sliding opening adapted to fit the mounting frame (3).

4. The retractable sound barrier device suitable for bridge expansion joints according to claim 1, characterized in that: The driving assembly comprises a fixing block (10) fixedly connected to the inner bottom wall of the mounting frame (3), two supporting plates (11) fixedly connected to the inner bottom wall of the fixing block (10), a rotating rod (12) rotatably connected between opposite sides of the two supporting plates (11), a driving wheel (13) fixedly connected to the outer side of the rotating rod (12), a first bevel gear (14) fixedly connected to the left and right ends of the rotating rod (12), a second bevel gear (15) meshed with the top of the first bevel gear (14), a threaded rod (16) fixedly connected to the inner side of the center of the second bevel gear (15), and a threaded block (17) threadedly connected to the outer side of the threaded rod (16).

5. The retractable sound barrier device suitable for bridge expansion joints according to claim 4, characterized in that: The fixing block (10) is located on the front side of the sound insulation filler (5), and a recess matching the fixing block (10) is provided at the bottom of the front sound insulation board (4), and a toggle opening matching the driving wheel (13) is provided on the front side of the fixing block (10).

6. The retractable sound barrier device suitable for bridge expansion joints according to claim 4, characterized in that: The two support plates (11) are respectively arranged on the left side and the right side of the inner bottom wall of the fixed block (10); the left end of the rotating rod (12) sequentially moves through the right side wall of the left support plate (11) and the left side wall of the left support plate (11) and extends to the inner side of the center of the left second bevel gear (15) and is fixedly connected to the left second bevel gear (15); and the right end of the rotating rod (12) sequentially moves through the left side wall of the right support plate (11) and the right side wall of the right support plate (11) and extends to the inner side of the center of the right second bevel gear (15) and is fixedly connected to the right second bevel gear (15).

7. The retractable sound barrier device suitable for bridge expansion joints according to claim 4, characterized in that: The top end of the threaded rod (16) is rotatably connected to the inner top wall of the fixed block (10), and the bottom end of the threaded rod (16) is rotatably connected to the inner bottom wall of the fixed block (10). The connecting rod (6) is fixedly connected to the bottom of the threaded block (17), and the bottom end of the connecting rod (6) is movable through the inner bottom wall of the fixed block (10) and the inner bottom wall of the mounting frame (3) in turn and is fixedly connected to the connecting frame (7) on the same side.

8. The retractable sound barrier device suitable for bridge expansion joints according to claim 1, characterized in that: The number of the laminating plate (9) is one, and the laminating plate (9) is fixedly connected between the bottom ends of the second elastic telescopic rods (8) on the left and right sides, and a polyurethane layer (901) is provided at the bottom of the laminating plate (9).

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