Anti-bending sound barrier post

Abstract

This utility model discloses a bending-resistant sound barrier column, including a base, a bending-resistant structure installed at the top of the base, and a protective structure installed at the top of the bending-resistant structure. The bending-resistant structure includes a pre-embedded steel plate set at the top of the base, with screw holes on the surface of the pre-embedded steel plate. Screws are installed inside the screw holes, with a main nut installed at the top of the screw and a secondary nut installed at the top of the main nut. A straight side plate is installed at the top of the pre-embedded steel plate, and a column is installed on one side of the straight side plate. Longitudinal reinforcing plates are installed on both sides inside the column. This utility model allows for precise adjustment of the preload by tightening the main nut and secondary nut using a torque method. The contact surfaces of the main nut and secondary nut generate additional frictional resistance, effectively resisting loosening between the internal and external threads. The straight side plate and the arc-shaped side plate are welded to both sides of the column to form a streamlined surface, reducing wind resistance or fluid resistance.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated materials technology, and in particular to a sound barrier column that is resistant to bending. Background Technology

[0002] As a crucial facility for reducing traffic noise pollution, the structural safety and durability of sound barriers are of paramount importance. The columns, as the main supporting components of sound barriers, are subjected to external forces such as wind loads, vehicle aerodynamic impacts, and seismic forces over long periods, making them prone to bending deformation and even breakage, thus affecting overall stability and noise reduction effectiveness. Therefore, researching how to improve the bending resistance of sound barrier columns is of significant engineering importance.

[0003] To this end, Chinese patent application number CN208009286U discloses a utility model relating to a highway sound barrier. The structure includes an arc-shaped metal sound barrier and a vertical sound barrier connected to the lower part of the arc-shaped metal sound barrier. The arc-shaped metal sound barrier includes a circular sound-absorbing cap and an arc-shaped sound-absorbing and sound-insulating screen at the bottom. The vertical sound barrier includes a top metal sound-absorbing screen, a middle transparent sound-insulating screen, and a bottom metal sound-absorbing screen connected sequentially from top to bottom. The arc-shaped metal sound barrier, the top metal sound-absorbing screen, and the bottom metal sound-absorbing screen are fixed to steel columns by spring clips. This utility model effectively expands the sound shadow zone for sound barriers of the same height. By adding a circular sound-absorbing cap to the top of the sound barrier, the resistance to diffraction sound propagation at the top of the sound barrier is improved. By adding a transparent sound-insulating screen in the middle of the sound barrier, the overall sound barrier blends into the environment, is aesthetically pleasing, and reduces visual fatigue.

[0004] The aforementioned highway sound barrier effectively expands the sound shadow zone under the same height conditions. By adding a circular sound-absorbing cap device to the top of the sound barrier, the anti-diffraction sound propagation capability of the top of the sound barrier is improved. By adding a transparent sound insulation screen in the middle of the sound barrier, the sound barrier as a whole is integrated into the environment, is beautiful and elegant, and eliminates visual fatigue. However, this device has insufficient bending resistance, which may cause the columns to bend and the connecting bolts, stiffening ribs and other components to loosen and fall off. Utility Model Content

[0005] The purpose of this invention is to provide a bend-resistant sound barrier column to address the shortcomings of insufficient stability in existing sound barrier columns.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bend-resistant sound barrier column, including a base;

[0007] The base is equipped with an anti-bending structure at its top, and a protective structure is installed at the top of the anti-bending structure.

[0008] The bending-resistant structure includes a pre-embedded steel plate set at the top of the base. The surface of the pre-embedded steel plate is provided with screw holes. Screws are installed inside the screw holes. A main nut is installed at the top of the screw. A secondary nut is installed at the top of the main nut.

[0009] The top of the embedded steel plate is equipped with a straight side plate, a column is installed on one side of the straight side plate, and longitudinal ribs are installed on both sides inside the column.

[0010] By engaging the main nut, the secondary nut, and the internal and external threads, tightening the secondary nut creates axial pressure on the main nut, thus positioning the column and embedded steel plate on the base. Even if the main nut becomes loose, the secondary nut can still provide support.

[0011] Furthermore, horizontal plates are installed at both ends of the interior of the column, and an arc-shaped side plate is installed on one side of the exterior of the column. The shape of the arc-shaped side plate can reduce the impact of wind pressure on the structure.

[0012] Furthermore, the surface of the base is provided with a screw hole, and the inside of the screw hole is provided with an internal thread, which cooperates with the external thread to form a structural connection.

[0013] Furthermore, the screw has external threads, and the screw hole and the screw form a threaded connection to prevent loosening.

[0014] Furthermore, multiple sets of horizontal plates are provided, and the horizontal plates are arranged at equal intervals at both ends inside the column to improve stability.

[0015] Furthermore, the protective structure includes a polyester topcoat disposed at the top of the bending structure, an epoxy primer installed on one side of the polyester topcoat, and hot-dip galvanizing installed on one side of the epoxy primer to protect the column from corrosion.

[0016] Furthermore, the hot-dip galvanizing is the basic anti-corrosion layer, the epoxy primer is the adhesion layer, and the polyester topcoat is the weather-resistant protective layer, which resists environmental erosion and extends service life.

[0017] The present invention provides a bend-resistant sound barrier column, which has the following advantages: by setting the bend-resistant structure, the sound barrier column can be prevented from bending, thus improving its effectiveness; the protective structure can protect the column that is exposed to the outside for a long time.

[0018] By setting screw holes, main nuts and secondary nuts, the main nut and secondary nut are screwed together to achieve the clamping of the column and the embedded steel plate from different directions, forming a bidirectional clamping force. The main nut provides the initial preload, and the secondary nut further locks it. When the main nut becomes slightly loose due to long-term vibration, the secondary nut has a blocking effect to prevent it from falling off completely.

[0019] The protective structure, with hot-dip galvanizing as the basic anti-corrosion layer, increases the surface hardness of the column and reduces local deformation caused by external forces. The epoxy primer serves as the intermediate layer, which has good compatibility with both the substrate and the subsequent polyester topcoat. The polyester topcoat can extend the service life of the column and significantly reduce maintenance frequency and replacement costs. Attached Figure Description

[0020] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0021] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the bending-resistant structure of this utility model;

[0023] Figure 4 For the present utility model Figure 3 Enlarged cross-sectional view of section B in the middle section;

[0024] Figure 5 For the present utility model Figure 1 A magnified schematic diagram of a partial cross-section at point A in the middle.

[0025] The following are the annotations in the figure: 1. Base; 2. Bending resistance structure; 201. Embedded steel plate; 202. Screw hole; 203. Main nut; 204. Secondary nut; 205. Screw; 206. Straight side plate; 207. Column; 208. Longitudinal rib plate; 209. Horizontal plate; 210. Arc-shaped side plate; 3. Protective structure; 301. Polyester topcoat; 302. Epoxy primer; 303. Hot-dip galvanizing. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 As shown, one embodiment of this utility model is a bend-resistant sound barrier column, including a base 1.

[0028] The top of the base 1 is equipped with an anti-bending structure 2, and the surface of the base 1 is provided with a screw hole 202, and the inside of the screw hole 202 is provided with an internal thread.

[0029] A protective structure 3 is installed at the top of the bending structure 2. The protective structure 3 includes a polyester topcoat 301 installed at the top of the bending structure 2, an epoxy primer 302 installed on one side of the polyester topcoat 301, and a hot-dip galvanized 303 installed on one side of the epoxy primer 302.

[0030] Hot-dip galvanized 303 is the basic anti-corrosion layer, epoxy primer 302 is the adhesion layer, and polyester topcoat 301 is the weather-resistant protective layer.

[0031] Please see Figures 1-5 As shown, when screw 205 is unscrewed, column 207 and embedded steel plate 201 can move laterally to the corresponding screw hole 202 on base 1. Hot-dip galvanizing 303 serves as the basic anti-corrosion layer, increasing the surface hardness of the column and reducing local deformation caused by external forces. Epoxy primer 302 acts as the adhesion layer and serves as an intermediate layer, simultaneously reacting with the substrate and subsequent polyester topcoat 301. With excellent compatibility, the epoxy primer 302, with epoxy resin as its main component, avoids coating peeling due to insufficient adhesion. It has excellent permeability and strong adhesion, which prevents the subsequent polyester topcoat 301 from peeling off due to vibration, temperature difference or mechanical impact. The polyester topcoat 301 is a weather-resistant protective layer. The column 207 is exposed to the open environment for a long time and needs to withstand the erosion of rainwater, humid air and industrial pollutants. The weather-resistant protective layer can extend the service life of the column 207 and significantly reduce the maintenance frequency and replacement cost.

[0032] The bending-resistant structure 2 includes a pre-embedded steel plate 201 set at the top of the base 1. The surface of the pre-embedded steel plate 201 is provided with a screw hole 202. A screw 205 is installed inside the screw hole 202. The screw 205 is provided with an external thread. The screw hole 202 and the screw 205 form a threaded connection. A main nut 203 is installed at the top of the screw 205. A secondary nut 204 is installed at the top of the main nut 203.

[0033] A straight side plate 206 is installed on the top of the pre-embedded steel plate 201. A column 207 is installed on one side of the straight side plate 206. Longitudinal ribs 208 are installed on both sides inside the column 207. Horizontal plates 209 are installed at both ends inside the column 207. Multiple sets of horizontal plates 209 are arranged at equal intervals at both ends inside the column 207. An arc-shaped side plate 210 is installed on one side outside the column 207.

[0034] Please see Figures 1-4As shown, the preload can be precisely adjusted by tightening the main nut 203 and the auxiliary nut 204 using torque. The mutual compression between the main nut 203 and the auxiliary nut 204 increases the friction between the internal thread and the external thread of the screw 205. When subjected to vibration or impact loads, the contact surfaces of the main nut 203 and the auxiliary nut 204 generate additional frictional resistance, effectively resisting loosening between the internal and external threads. The main nut 203 bears the main load, while the auxiliary nut 204, after tightening, exerts axial pressure on the main nut 203. When the main nut 203 becomes slightly loose due to long-term vibration, the secondary nut 204 can still prevent it from falling off completely through its blocking effect. The straight side plate 206 and the arc-shaped side plate 210 can form a streamlined surface by welding to both sides of the column 207, reducing wind resistance or fluid resistance. The concentrated load is converted into a distributed load through the internal transverse plate 209 of the column 207 to prevent cross-sectional distortion. The longitudinal stiffening plate 208 suppresses local buckling and stability through axial stiffness. The triangular stiffening ribs are symmetrically arranged at the bottom of both sides of the column 207 to reduce local stress concentration.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bend-resistant sound barrier column, comprising a base (1); Its features are: The base (1) is equipped with an anti-bending structure (2) at its top end, and a protective structure (3) is equipped with the top end of the anti-bending structure (2). The bending structure (2) includes an embedded steel plate (201) set at the top of the base (1). The surface of the embedded steel plate (201) is provided with screw holes (202). Screws (205) are installed inside the screw holes (202). A main nut (203) is installed at the top of the screw (205). A secondary nut (204) is installed at the top of the main nut (203). The top of the pre-embedded steel plate (201) is equipped with a straight side plate (206), and a column (207) is installed on one side of the straight side plate (206). The two sides inside the column (207) are equipped with longitudinal ribs (208).

2. The sound barrier column with bending resistance according to claim 1, characterized in that: A horizontal plate (209) is installed at both ends inside the column (207), and an arc-shaped side plate (210) is installed on one side outside the column (207).

3. A bend-resistant sound barrier column according to claim 1, characterized in that: The base (1) has a screw hole (202) on its surface, and the screw hole (202) has an internal thread inside.

4. A bend-resistant sound barrier column according to claim 1, characterized in that: The screw (205) has an external thread, and the screw hole (202) and the screw (205) form a threaded connection.

5. A bend-resistant sound barrier column according to claim 2, characterized in that: The horizontal plate (209) is provided in multiple sets, and the horizontal plate (209) is arranged at equal intervals at both ends inside the column (207).

6. A bend-resistant sound barrier column according to claim 1, characterized in that: The protective structure (3) includes a polyester topcoat (301) disposed on the top of the bending structure (2), an epoxy primer (302) is installed on one side of the polyester topcoat (301), and a hot-dip galvanized layer (303) is installed on one side of the epoxy primer (302).

7. A bend-resistant sound barrier column according to claim 6, characterized in that: The hot-dip galvanizing (303) is the basic anti-corrosion layer, the epoxy primer (302) is the adhesion layer, and the polyester topcoat (301) is the weather-resistant protective layer.

Images