Soundproof barrier for subway ground section

Abstract

The utility model relates to the field of subway sound insulation, concretely is a subway ground section is with sound barrier, including being used for supporting's support mechanism and being used for providing initial barrier's shelter mechanism, the shelter mechanism installs on support mechanism, still including being used for the shock attenuation mechanism that will noise oscillation is absorbed and weakens and being used for the disorder mechanism that will noise oscillation is staggered disorder elimination, a plurality of shock attenuation mechanism install in the shelter mechanism inside, the disorder mechanism installs between shock attenuation mechanism, the utility model discloses through setting up shock attenuation mechanism and disorder mechanism in the inside of shelter mechanism, will the oscillation of noise generation staggered disorder, thereby avoid the overlapping of oscillation and trigger resonance, simultaneously will oscillation carry out the diffusion of multiple range, avoid concentrated impact, thereby eliminate the effect of sound insulation to noise.

Description

Technical Field

[0001] This utility model relates to the field of subway sound insulation, and in particular to a sound insulation barrier for subway ground sections. Background Technology

[0002] Noise barriers for subway ground sections are noise reduction and protection facilities installed on both sides of subway ground lines and elevated lines. Their core function is to block or significantly reduce the transmission of noise generated by train operation, such as wheel-rail friction, motor operation, and airflow disturbance, to the surrounding area through a barrier structure made of sound-insulating or sound-absorbing materials such as metal plates, transparent acrylic, and concrete. This reduces noise pollution to the environment along the line and improves the quality of life and work environment for nearby residents.

[0003] In the prior art, Chinese utility model patent CN216809652U discloses a sound barrier for subway ground sections, which uses an internal spring structure to eliminate vibrations. However, in actual use, it has been found that noise is essentially vibration, and the accumulation of vibrations will also cause noise diffusion. If the direction of vibration transmission cannot be changed, the noise still cannot be effectively eliminated after subsequent vibrations continue to accumulate, thus failing to achieve the effect of sound insulation. Utility Model Content

[0004] The purpose of this utility model is to provide a sound barrier for subway ground sections in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A noise barrier for subway ground sections includes a support mechanism for support and a shielding mechanism for providing an initial barrier, the shielding mechanism being mounted on the support mechanism. It also includes a damping mechanism for absorbing and weakening noise vibrations and a disturbance mechanism for eliminating the alternating disturbances of noise vibrations. A plurality of the damping mechanisms are mounted inside the shielding mechanism, and the disturbance mechanisms are mounted between the damping mechanisms. The shielding mechanism includes a main frame, which is installed at the back, and a top frame is installed on the top of the main frame. The front end of the main frame is connected to the front panel through the shock absorption mechanism. The shock absorption mechanism includes a first arc-shaped plate, a second arc-shaped plate, and a transmission column. The first arc-shaped plate is fixed to the rear of the main frame. The second arc-shaped plate is disposed behind the first arc-shaped plate, and a transmission column is fixed to the center of the rear end face of the first arc-shaped plate. The transmission column extends towards one end of the second arc-shaped plate and penetrates through the second arc-shaped plate. A compression ring is provided between the penetration position on the second arc-shaped plate and the transmission column. A compression assembly is provided between the transmission column and the compression ring. The rear end of the transmission column cooperates with the main frame through a friction assembly. The disturbance mechanism is connected to the transmission column and located behind the compression ring.

[0006] Preferably, the extrusion assembly includes a limiting groove and a limiting block. The limiting blocks are fixed to the inner wall of the extrusion ring and are symmetrically arranged in two. The guiding column is formed with a limiting groove that matches the limiting block. The limiting groove is a spiral groove.

[0007] Preferably, the friction assembly includes a rear extrusion seat and an extrusion cone. The extrusion cone is fixed to the rear end of the transmission column, and the rear extrusion seat is fixed to the main frame. The extrusion cone is made of hard rubber, and the rear extrusion seat has a conical groove formed to match the extrusion cone.

[0008] Preferably, the disorder mechanism includes a swing ring, which is sleeved on the outside of the conduction column. The swing ring and the conduction column are connected by an inward coil spring. Two pull lugs are symmetrically arranged at the upper and lower ends of the swing ring. The pull lugs on adjacent swing rings are connected by a pull rope. The pull lugs at the upper odd-numbered position of the swing ring are connected to the pull lugs at the lower even-numbered position of the swing ring by the pull rope.

[0009] Preferably, both the first arc-shaped plate and the second arc-shaped plate are arc-shaped structures and are symmetrically arranged.

[0010] Preferably, the top and bottom of the second arc-shaped plate are provided with arc-shaped bends between them and the main frame.

[0011] Preferably, the pull ropes between the pull ears are arranged in a staggered manner.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By incorporating a shock-absorbing mechanism and a disturbance mechanism within the shielding structure, the vibrations generated by noise are disrupted through staggered and disordered processes, thereby preventing overlapping vibrations from causing resonance. Simultaneously, the vibrations are diffused over multiple ranges to avoid concentrated impact, thus eliminating noise and achieving a sound insulation effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a sound barrier for subway ground sections according to the present invention; Figure 2 This is a schematic diagram of the shielding mechanism of a sound barrier for subway ground sections according to the present invention; Figure 3 This is a schematic diagram of the shock absorption mechanism of a sound barrier for subway ground sections according to the present invention; Figure 4 This is an exploded structural diagram of the shielding mechanism of a sound barrier for subway ground sections according to the present invention; Figure 5 This is a schematic diagram of the disordered mechanism structure of a sound barrier for subway ground sections according to the present invention; Figure 6 This is a schematic diagram of the conductive column structure of a sound barrier for subway ground sections according to the present invention; Figure 7 This is a schematic diagram of the inner coil spring structure of a sound barrier for subway ground sections according to the present invention; Figure 8 This is a cross-sectional view of the vibration damping mechanism of a sound barrier for subway ground sections as described in this utility model.

[0015] The annotations in the attached figures are explained as follows: 1. Support mechanism; 2. Shielding mechanism; 3. Shock absorption mechanism; 4. Disruption mechanism; 11. Base; 12. Column; 13. Base frame; 21. Front plate; 22. Main frame; 23. Top frame; 31. First arc plate; 32. Second arc plate; 33. Conducting column; 34. Extrusion ring; 35. Rear extrusion seat; 36. Extrusion cone block; 37. Limiting groove; 38. Limiting block; 41. Swinging ring; 42. Pull lug; 43. Pull rope; 44. Inner coil spring. Detailed Implementation

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-8 As shown, a noise barrier for subway ground sections includes a support mechanism 1 for support and a shielding mechanism 2 for providing an initial barrier. The shielding mechanism 2 is installed on the support mechanism 1. It also includes a damping mechanism 3 for absorbing and weakening noise vibrations and a disturbance mechanism 4 for eliminating the alternating disturbances of noise vibrations. A plurality of damping mechanisms 3 are installed inside the shielding mechanism 2, and the disturbance mechanism 4 is installed between the damping mechanisms 3. The shielding mechanism 2 includes a main frame 22, which is installed at the back. A top frame 23 is installed on the top of the main frame 22, and the front end of the main frame 22 is connected to the front panel 21 through a shock-absorbing mechanism 3. The damping mechanism 3 includes a first arc plate 31, a second arc plate 32, and a transmission column 33. The first arc plate 31 is fixed to the rear of the main frame 22. The second arc plate 32 is located at the rear of the first arc plate 31, and the transmission column 33 is fixed at the center of the rear end face of the first arc plate 31. The transmission column 33 extends to one end of the second arc plate 32 and passes through the second arc plate 32. A compression ring 34 is provided on the second arc plate 32 at the through position and cooperates with the transmission column 33. A compression assembly is provided between the transmission column 33 and the compression ring 34. The rear end of the transmission column 33 cooperates with the main frame 22 through a friction assembly. The disturbance mechanism 4 is connected to the transmission column 33 and is located behind the compression ring 34.

[0019] In this embodiment, the extrusion assembly includes a limiting groove 37 and a limiting block 38. The limiting blocks 38 are fixed to the inner wall of the extrusion ring 34 and are arranged symmetrically. The transmission column 33 is formed with a limiting groove 37 that matches the limiting block 38. The limiting groove 37 is a spiral groove.

[0020] In this embodiment, the friction assembly includes a rear extrusion seat 35 and an extrusion cone 36. The extrusion cone 36 is fixedly connected to the rear end of the transmission column 33, and the rear extrusion seat 35 is fixedly connected to the main frame 22. The extrusion cone 36 is made of hard rubber, and a conical groove that matches the extrusion cone 36 is formed on the rear extrusion seat 35.

[0021] In this embodiment, the disorder mechanism 4 includes a swing ring 41, which is sleeved on the outside of the transmission post 33. The swing ring 41 and the transmission post 33 are connected by an inward spring 44. Two pull ears 42 are symmetrically arranged at the upper and lower ends of the swing ring 41. The pull ears 42 on adjacent swing rings 41 are connected by a pull rope 43. The pull ears 42 at the upper odd-numbered position of the swing ring 41 are connected to the pull ears 42 at the lower even-numbered position of the swing ring 41 by the pull rope 43.

[0022] In this embodiment, both the first arc-shaped plate 31 and the second arc-shaped plate 32 are arc-shaped structures and are arranged symmetrically.

[0023] In this embodiment, the top and bottom of the second arc-shaped plate 32 are provided with arc-shaped bends between them and the main frame 22.

[0024] In this embodiment, the pull ropes 43 between the pull ears 42 are arranged in an alternating manner.

[0025] In this embodiment, the support mechanism 1 includes a base 11, a column 12, and a base frame 13. The column 12 is installed on the upper end of the base 11, and the base frame 13 is installed at the bottom between the columns 12.

[0026] Working principle: The essence of noise is vibration. When the subway end corresponding to the current plate 21 is subjected to noise and vibration, the vibration is diffused through the transmission of the first arc plate 31 and the second arc plate 32. At the same time, the vibration is transmitted backward through the transmission column 33 at the center of the first arc plate 31. When the transmission column 33 slides, the limiting groove 37 on it and the limiting block 38 between the compression ring 34 are squeezed, thereby causing the transmission column 33 to twist. The transmission column 33 drives the swing ring 41 to twist through the inner coil spring 44. After the swing ring 41 is twisted, it moves to the side swing ring 41 via the pull rope 43. When the transmission column 33 of the main force oscillation area rotates clockwise, it will pull the side transmission column 33 to rotate counterclockwise via the pull rope 43, thereby squeezing and eliminating the oscillation, and making the transmission process of the oscillation as distorted and disordered as possible. The friction between the rear compression cone 36 and the rear compression seat 35 will also eliminate the oscillation, thereby effectively treating the oscillation and preventing the noise from continuing to be transmitted.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A noise barrier for subway ground sections, comprising a support mechanism (1) for support and a shielding mechanism (2) for providing an initial barrier, the shielding mechanism (2) being mounted on the support mechanism (1), characterized in that: It also includes a damping mechanism (3) for absorbing and weakening noise vibrations and a disturbance mechanism (4) for eliminating the disturbance of noise vibrations. Several of the damping mechanisms (3) are installed inside the shielding mechanism (2), and the disturbance mechanism (4) is installed between the damping mechanisms (3). The shielding mechanism (2) includes a main frame (22), which is installed on the back. A top frame (23) is installed on the top of the main frame (22), and the front end of the main frame (22) is connected to the front plate (21) through the shock absorption mechanism (3). The shock absorption mechanism (3) includes a first arc plate (31), a second arc plate (32), and a transmission column (33). The first arc plate (31) is fixed to the rear of the main frame (22). The second arc plate (32) is located at the rear of the first arc plate (31), and the transmission column (33) is fixed at the center of the rear end face of the first arc plate (31). The transmission column (33) extends to one end of the second arc plate (32) and passes through the second arc plate (32). A compression ring (34) is provided between the transmission column (33) and the transmission column (33) at the through position on the second arc plate (32). A compression assembly is provided between the transmission column (33) and the compression ring (34). The rear end of the transmission column (33) cooperates with the main frame (22) through a friction assembly. The disorder mechanism (4) is connected to the transmission column (33) and located behind the compression ring (34).

2. The sound barrier for subway surface sections according to claim 1, characterized in that: The extrusion assembly includes a limiting groove (37) and a limiting block (38). The limiting block (38) is fixed to the inner wall of the extrusion ring (34) and there are two symmetrically arranged. The transmission column (33) is formed with a limiting groove (37) that matches the limiting block (38). The limiting groove (37) is a spiral groove.

3. A sound barrier for subway surface sections according to claim 2, characterized in that: The friction assembly includes a rear extrusion seat (35) and an extrusion cone (36). The extrusion cone (36) is fixed to the rear end of the transmission column (33), and the rear extrusion seat (35) is fixed to the main frame (22). The extrusion cone (36) is made of hard rubber, and the rear extrusion seat (35) has a conical groove formed on it to match the extrusion cone (36).

4. A sound barrier for subway surface sections according to claim 3, characterized in that: The disorder mechanism (4) includes a swing ring (41), which is sleeved on the outside of the transmission column (33). The swing ring (41) and the transmission column (33) are connected by an inward spring (44). The upper and lower ends of the swing ring (41) are symmetrically provided with two lugs (42). The lugs (42) on adjacent swing rings (41) are connected by a pull rope (43). The lugs (42) at the upper odd position of the swing ring (41) are connected to the lugs (42) at the lower even position of the swing ring (41) by the pull rope (43).

5. A sound barrier for subway surface sections according to claim 4, characterized in that: Both the first arc-shaped plate (31) and the second arc-shaped plate (32) are arc-shaped structures and are symmetrically arranged.

6. A sound barrier for subway surface sections according to claim 5, characterized in that: The second arc-shaped plate (32) has arc-shaped bends at its top and bottom that fit with the main frame (22).

7. A sound barrier for subway surface sections according to claim 4, characterized in that: The pull ropes (43) between the pull ears (42) are staggered.

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