Road noise reduction isolation barrier

Abstract

The utility model relates to the technical field of road engineering, and particularly discloses a road noise reduction isolation barrier which comprises two main sound absorption plates, an auxiliary sound absorption plate arranged between the two main sound absorption plates, hinge pieces arranged at the upper end and the lower end of the auxiliary sound absorption plate, the main sound absorption plates are rotationally connected with the auxiliary sound absorption plate through the hinge pieces, and an installation frame is arranged on the back face of the auxiliary sound absorption plate. The mounting frame is detachably connected with the auxiliary acoustic panel, and the upper end and the lower end of the mounting frame are provided with rotary pushing devices used for adjusting the angle between the main acoustic panel and the auxiliary acoustic panel. The main sound-absorbing plate is arranged at the upper end and the lower end of the auxiliary sound-absorbing plate and can rotate, the main sound-absorbing plate and the auxiliary sound-absorbing plate are switched between a vertical type plate and a C-shaped structural plate through the rotary pushing device, and compared with the vertical type plate, the C-shaped structural plate is better in sound-insulating and noise-reducing effect; and the main sound-absorbing plate in the vertical state is also convenient for a worker to stack a plurality of groups of isolation barriers, so that the isolation barriers are more convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, in particular to a road noise reduction isolation barrier. Background Art

[0002] When roads and railways pass through densely populated areas, road sound barriers should be set up on both sides of the road to reduce the pollution caused by noise to the environment. At present, the sound barriers used are divided into metal sound barriers, non-metal sound barriers and metal and non-metal combination sound barriers. Metal sound barriers, such as those made of metal plates and metal mesh plates, have good shape-keeping ability and can be made into a variety of shapes, but compared with non-metal sound barriers, they are heavy and expensive, and the noise is reflected on the surface of the metal sound barrier and returned to the surrounding environment, with poor noise reduction effect; non-metal sound barriers, such as those made of expanded perlite boards, foamed cement boards, cement wood chip boards, etc., have poor shape-keeping ability and are mostly made into straight plate structures, which have poor effect on reabsorbing reflected and diffracted noise.

[0003] For example, the Chinese patent with application number CN201920069484.3 discloses a road sound barrier, including a connecting crossbeam, a plurality of rubber particle sound-absorbing panels, and a plurality of supporting components arranged side by side. The supporting components include a frame and a support frame. The frame is bent into a C shape as a whole, and the support frame is fixedly connected to the frame. Under the action of the frame, the rubber particle sound-absorbing panels of the sound barrier are C-shaped as a whole, which has a good effect on the re-absorption of reflected and diffracted noise, and can absorb noise in different frequency bands, greatly improving the noise reduction effect of the road sound barrier. To assemble isolation barriers on both sides of the road, multiple sound-absorbing panels are required, but because such sound-absorbing panels are C-shaped as a whole, when the sound-absorbing panels are transported, the C-shaped sound-absorbing panels will take up a lot of storage space during the stacking process, affecting the assembly efficiency and transportation cost of the isolation barriers. Utility Model Content

[0004] In view of the above problems, the utility model proposes a road noise reduction isolation barrier to solve the shortcomings of existing isolation barriers that when the sound-absorbing panels are transported, the C-shaped sound-absorbing panels will take up a large storage space during the stacking process, affecting the assembly efficiency and transportation cost of the isolation barrier.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a road noise reduction isolation barrier, comprising two main sound absorbing panels, an auxiliary sound absorbing panel is arranged between the two main sound absorbing panels, hinges are arranged at the upper and lower ends of the auxiliary sound absorbing panel, and the main sound absorbing panel is rotatably connected to the auxiliary sound absorbing panel through the hinges;

[0006] A supporting frame is provided on the back of the auxiliary sound-absorbing panel, and the supporting frame is detachably connected to the auxiliary sound-absorbing panel;

[0007] A mounting frame is provided on the back of the auxiliary sound-absorbing panel, and the mounting frame is detachably connected to the auxiliary sound-absorbing panel. A rotating pushing device for adjusting the angle between the main sound-absorbing panel and the auxiliary sound-absorbing panel is provided at the upper and lower ends of the mounting frame. The rotating pushing device is fixedly connected to the mounting frame, and the rotating pushing device is detachably connected to the main sound-absorbing panel.

[0008] A further improvement is that the rotating pushing device includes a track plate and a fixed plate, the track plate is detachably connected to the back of the main sound-absorbing panel, the fixed plate is fixedly connected to the upper and lower ends of the mounting frame, the upper end of the fixed plate is equipped with an adjusting bolt, the adjusting bolt passes through the fixed plate and is threadedly connected to the fixed plate, a T-shaped groove is provided on the side of the track plate facing the fixed plate, a slider is installed in the T-shaped groove, the slider is slidably connected to the T-shaped groove, an articulated block is provided at the end of the slider away from the T-shaped groove, the articulated block is hinged to the T-shaped groove, and the end of the articulated block away from the T-shaped groove is rotatably connected to the adjusting bolt.

[0009] A further improvement is that bolt fixing plates are provided on both sides of the track plate, the bolt fixing plates are fixedly connected to the track plate, a third assembly bolt is mounted on the bolt fixing plates, and the third assembly bolt is threadedly connected to a bolt hole opened on the back of the main sound absorbing panel.

[0010] A further improvement is that: the support frame body includes a support frame, an assembly frame is provided at the upper end of the support frame, the assembly frame is placed between the auxiliary sound-absorbing panel and the support frame, one end of the assembly frame is fixedly connected to the support frame, and the other end of the assembly frame is equipped with a plurality of second assembly bolts, the second assembly bolts pass through the assembly frame and are threadedly connected to bolt holes opened on the back of the auxiliary sound-absorbing panel.

[0011] A further improvement is that a plurality of first assembly bolts are mounted on the inner side of the mounting frame, and the first assembly bolts pass through the mounting frame and are threadedly connected to bolt holes provided on the back side of the auxiliary sound absorbing board.

[0012] A further improvement is that the hinged member includes a hinged seat and a movable pin, the hinged seat is fixedly connected to the upper and lower ends of the auxiliary sound absorbing board, the movable pin is placed on both sides of the hinged seat and rotatably connected to the hinged seat, and the movable pin is fixedly connected to the front of the main sound absorbing board.

[0013] A further improvement is that a non-return bevel groove is provided on the back of the auxiliary sound absorbing board, the non-return bevel groove is placed at the upper and lower ends of the auxiliary sound absorbing board, and an inclined surface matching the non-return bevel groove is provided at one end of the main sound absorbing board close to the auxiliary sound absorbing board.

[0014] The beneficial effects of the utility model are as follows: the main sound-absorbing panel is arranged at the upper and lower ends of the auxiliary sound-absorbing panel and can rotate, and the main sound-absorbing panel and the auxiliary sound-absorbing panel are switched between the upright type and the C-shaped structural panel by a rotating pushing device. The C-shaped structural panel has better sound insulation and noise reduction effects than the upright type, and the main sound-absorbing panel in the upright state is also convenient for the staff to stack multiple groups of isolation barriers, and is more convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the main sound absorbing panel in the utility model.

[0016] Figure 2 It is a structural diagram of the auxiliary sound absorbing board in the utility model.

[0017] Figure 3 It is a structural diagram of the back side of the main sound absorbing panel in the utility model.

[0018] Figure 4 It is a structural diagram of the front side of the auxiliary sound absorbing panel in the utility model after rotation.

[0019] Figure 5 It is a structural diagram of the back side of the auxiliary sound absorbing board in the utility model.

[0020] Figure 6 It is a structural diagram of the back side of the auxiliary sound absorbing panel after rotation in the utility model.

[0021] Among them: 1. Main sound-absorbing panel; 2. Auxiliary sound-absorbing panel; 4. Installation frame; 5. First assembly bolt; 6. Support frame; 7. Assembly frame; 8. Second assembly bolt; 9. Articulated seat; 10. Movable pin; 11. Check groove; 12. Fixed plate; 13. Adjustment bolt; 14. Track plate; 15. T-shaped slide groove; 16. Slider; 17. Articulated block; 18. Bolt fixing plate; 19. Third assembly bolt. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0023] according to Figure 1 , 2 As shown in Figures 3, 4, 5 and 6, a road noise reduction isolation barrier is proposed in this embodiment, comprising two main sound absorbing panels 1, an auxiliary sound absorbing panel 2 is arranged between the two main sound absorbing panels 1, hinges are arranged at the upper and lower ends of the auxiliary sound absorbing panel 2, and the main sound absorbing panel 1 is rotatably connected to the auxiliary sound absorbing panel 2 through the hinges; the main sound absorbing panel 1 and the auxiliary sound absorbing panel 2 are hollow aluminum alloy plates, a plurality of micropores are opened on the front of the aluminum alloy plate, and sound-absorbing cotton is installed in the cavity of the aluminum alloy plate, and the surface of the sound-absorbing cotton has many pores, which can play the role of sound absorption and noise reduction in combination with the micropores on the surface of the main sound absorbing panel 1 and the auxiliary sound absorbing panel 2, and convert sound into heat energy.

[0024] A supporting frame is provided on the back of the auxiliary sound-absorbing panel 2, and the supporting frame is detachably connected to the auxiliary sound-absorbing panel 2;

[0025] A mounting frame 4 is provided on the back of the auxiliary sound-absorbing panel 2, and the mounting frame 4 is detachably connected to the auxiliary sound-absorbing panel 2. A rotating push device for adjusting the angle between the main sound-absorbing panel 1 and the auxiliary sound-absorbing panel 2 is provided at the upper and lower ends of the mounting frame 4, and the rotating push device is fixedly connected to the mounting frame 4, and the rotating push device is detachably connected to the main sound-absorbing panel 1. The main sound-absorbing panel 1 is arranged at the upper and lower ends of the auxiliary sound-absorbing panel 2 and can rotate. By adjusting the angle between the main sound-absorbing panel 1 and the auxiliary sound-absorbing panel 2 by the rotating push device, the main sound-absorbing panel 1 and the auxiliary sound-absorbing panel 2 can be switched between upright and C-shaped structural panels. Compared with upright sound-absorbing panels, the sound insulation and noise reduction effect of C-shaped structural panels is more significantly improved. At the same time, the upright main sound-absorbing panels 1 and auxiliary sound-absorbing panels 2 also facilitate the staff to stack multiple groups of isolation barriers, which is more convenient to carry.

[0026] About the rotating pushing device: the rotating pushing device includes a track plate 14 and a fixed plate 12, the track plate 14 is detachably connected to the back of the main sound-absorbing panel 1, the fixed plate 12 is fixedly connected to the upper and lower ends of the mounting frame 4, the upper end of the fixed plate 12 is equipped with an adjusting bolt 13, the adjusting bolt 13 passes through the fixed plate 12 and is threadedly connected to the fixed plate 12, the track plate 14 is provided with a T-shaped groove 15 on the side facing the fixed plate 12, the T-shaped groove 15 is equipped with a slider 16, the slider 16 is slidably connected to the T-shaped groove 15, the slider 16 is provided with a hinge block 17 at the end away from the T-shaped groove 15, the hinge block 17 is hinged to the T-shaped groove 15, and the hinge block 17 is rotatably connected to the adjusting bolt 13 at the end away from the T-shaped groove 15. When the adjusting bolt 13 is turned, the adjusting bolt 13 will push the slider 16 through the hinge block 17. The slider 16 will slide along the T-shaped slide groove 15 during the pushing. The slider 16 will also push the main sound absorbing panel 1 during the sliding, so that the main sound absorbing panel 1 rotates at the upper and lower ends of the auxiliary sound absorbing panel 2 with the hinge as the center, and then adjust the angle between the auxiliary sound absorbing panel 2 and the main sound absorbing panel 1.

[0027] More specifically, bolt fixing plates 18 are provided on both sides of the track plate 14, the bolt fixing plates 18 are fixedly connected to the track plate 14, and third assembly bolts 19 are mounted on the bolt fixing plates 18, and the third assembly bolts 19 are threadedly connected to bolt holes provided on the back of the main sound absorbing panel 1. When the track plate 14 is removed from the back of the main sound absorbing panel 1, the third assembly bolts 19 mounted on the bolt fixing plates 18 can be screwed out from the bolt holes on the back of the main sound absorbing panel 1.

[0028] The support frame is installed on the back of the main sound-absorbing panel 1, and is used to fix the auxiliary sound-absorbing panel 2 to the bases on both sides of the road. Specifically, the support frame includes a support frame 6, and an assembly frame 7 is provided at the upper end of the support frame 6. The assembly frame 7 is placed between the auxiliary sound-absorbing panel 2 and the support frame 6. One end of the assembly frame 7 is fixedly connected to the support frame 6, and the other end of the assembly frame 7 is equipped with a plurality of second assembly bolts 8. The second assembly bolts 8 pass through the assembly frame 7 and are threadedly connected to the bolt holes provided on the back of the auxiliary sound-absorbing panel 2. The assembly frame 7 is fixed to the auxiliary sound-absorbing panel 2 by bolt connection. When the support frame 6 and the assembly frame 7 are removed from the back of the auxiliary sound-absorbing panel 2 for replacement, the second assembly bolts 8 on the assembly frame 7 can be unscrewed from the bolt holes. The lower end of the support frame 6 is also equipped with a plurality of bolts for fixing to the road surface base.

[0029] Similar to the supporting frame, the mounting frame 4 is also fixed to the auxiliary sound absorbing board 2 by bolt connection. Specifically, a plurality of first mounting bolts 5 are mounted inside the mounting frame 4. The first mounting bolts 5 pass through the mounting frame 4 and are threadedly connected to bolt holes provided on the back of the auxiliary sound absorbing board 2. When the mounting frame 4 is removed from the back of the auxiliary sound absorbing board 2, the first mounting bolts 5 can be screwed out from the bolt holes on the back of the auxiliary sound absorbing board 2.

[0030] Regarding the hinge: the hinge includes a hinge seat 9 and a movable pin 10. The hinge seat 9 is fixedly connected to the upper and lower ends of the auxiliary sound absorbing panel 2. The movable pin 10 is placed on both sides of the hinge seat 9 and is rotatably connected to the hinge seat 9. The movable pin 10 is fixedly connected to the front of the main sound absorbing panel 1. When the movable pin 10 rotates, it rotates around the connection point between the hinge seat 9 and the movable pin 10.

[0031] In order to enable the main sound absorbing panel 1 to be horizontally unfolded at both ends of the auxiliary sound absorbing panel 2, a non-return inclined groove 11 is provided on the back of the auxiliary sound absorbing panel 2. The non-return inclined groove 11 is placed at the upper and lower ends of the auxiliary sound absorbing panel 2, and an inclined surface that matches the non-return inclined groove 11 is provided at one end of the main sound absorbing panel 1 close to the auxiliary sound absorbing panel 2. When the main sound absorbing panel 1 is horizontally unfolded from the upper and lower ends of the auxiliary sound absorbing panel 2, the end of the main sound absorbing panel 1 close to the auxiliary sound absorbing panel 2 will abut against the back of the auxiliary sound absorbing panel 2 and match with the non-return inclined groove 11 on the back of the auxiliary sound absorbing panel 2 to limit the position.

[0032] Working principle: The main sound-absorbing panel 1 is arranged at the upper and lower ends of the auxiliary sound-absorbing panel 2 and can rotate. By adjusting the angle between the main sound-absorbing panel 1 and the auxiliary sound-absorbing panel 2 by rotating the pushing device, the main sound-absorbing panel 1 and the auxiliary sound-absorbing panel 2 can be switched between upright and C-shaped structural panels. Compared with the upright sound-absorbing panel, the C-shaped structural panel has a more obvious improvement in sound insulation and noise reduction effect. At the same time, the upright main sound-absorbing panel 1 and the auxiliary sound-absorbing panel 2 also make it convenient for the staff to stack multiple groups of isolation barriers, which is more convenient to carry.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A road noise reduction isolation barrier, comprising two main sound absorbing panels (1), an auxiliary sound absorbing panel (2) being arranged between the two main sound absorbing panels (1), characterized in that: The upper and lower ends of the auxiliary sound absorbing panel (2) are provided with hinges, and the main sound absorbing panel (1) is rotatably connected to the auxiliary sound absorbing panel (2) via the hinges; A supporting frame is provided on the back of the auxiliary sound absorbing panel (2), and the supporting frame is detachably connected to the auxiliary sound absorbing panel (2); The auxiliary sound absorbing panel (2) is provided with a mounting frame (4) on its back, the mounting frame (4) being detachably connected to the auxiliary sound absorbing panel (2), and the upper and lower ends of the mounting frame (4) being provided with rotating pushing devices for adjusting the angle between the main sound absorbing panel (1) and the auxiliary sound absorbing panel (2), the rotating pushing devices being fixedly connected to the mounting frame (4), and the rotating pushing devices being detachably connected to the main sound absorbing panel (1).

2. A road noise reduction isolation barrier according to claim 1, characterized in that: The rotating pushing device comprises a track plate (14) and a fixed plate (12), wherein the track plate (14) is detachably connected to the back side of the main sound absorbing plate (1), the fixed plate (12) is fixedly connected to the upper and lower ends of the mounting frame (4), an adjusting bolt (13) is arranged on the upper end of the fixed plate (12), the adjusting bolt (13) passes through the fixed plate (12) and is threadedly connected to the fixed plate (12), a T-shaped slide groove (15) is provided on the side of the track plate (14) facing the fixed plate (12), a slider (16) is arranged in the T-shaped slide groove (15), the slider (16) is slidably connected to the T-shaped slide groove (15), an end of the slider (16) away from the T-shaped slide groove (15) is provided with a hinge block (17), the hinge block (17) is hinged to the T-shaped slide groove (15), and the end of the hinge block (17) away from the T-shaped slide groove (15) is rotatably connected to the adjusting bolt (13).

3. A road noise reduction isolation barrier according to claim 2, characterized in that: Bolt fixing plates (18) are provided on both sides of the track plate (14), the bolt fixing plates (18) are fixedly connected to the track plate (14), and a third assembly bolt (19) is mounted on the bolt fixing plates (18), and the third assembly bolt (19) is threadedly connected to a bolt hole provided on the back of the main sound absorbing panel (1).

4. A road noise reduction isolation barrier according to claim 1, characterized in that: The support frame body comprises a support frame (6), an assembly frame (7) is provided at the upper end of the support frame (6), the assembly frame (7) is placed between the auxiliary sound absorbing board (2) and the support frame (6), one end of the assembly frame (7) is fixedly connected to the support frame (6), and the other end of the assembly frame (7) is equipped with a plurality of second assembly bolts (8), the second assembly bolts (8) pass through the assembly frame (7) and are threadedly connected to bolt holes provided on the back of the auxiliary sound absorbing board (2).

5. The road noise reduction isolation barrier according to claim 1, characterized in that: A plurality of first assembly bolts (5) are mounted on the inner side of the installation frame (4), and the first assembly bolts (5) pass through the installation frame (4) and are threadedly connected to bolt holes provided on the back side of the auxiliary sound absorbing board (2).

6. The road noise reduction isolation barrier according to claim 1, characterized in that: The hinged member comprises a hinge seat (9) and a movable pin (10); the hinge seat (9) is fixedly connected to the upper and lower ends of the auxiliary sound absorbing panel (2); the movable pin (10) is disposed on both sides of the hinge seat (9) and is rotatably connected to the hinge seat (9); and the movable pin (10) is fixedly connected to the front side of the main sound absorbing panel (1).

7. The road noise reduction isolation barrier according to claim 1, characterized in that: The back of the auxiliary sound absorbing panel (2) is provided with a non-return inclined groove (11), the non-return inclined groove (11) is arranged at the upper and lower ends of the auxiliary sound absorbing panel (2), and the main sound absorbing panel (1) is provided with an inclined surface matching the non-return inclined groove (11) at one end close to the auxiliary sound absorbing panel (2).

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