Enhanced supporting steel structure of overhead line system

Abstract

The utility model discloses a reinforced supporting steel structure of a contact network, which relates to the technical field of contact network supporting structures and comprises a main supporting column and a concrete foundation block. According to the contact net reinforced supporting steel structure, the inner surface of the movable seat is tightly attached to the reinforced side supports, the movable seat is fixed through second fastening bolts matched with second screw holes, and the movable seat can flexibly move along the reinforced side supports and be accurately positioned; the other end of the reinforcing inclined strut is rotationally connected with a second fixing seat on the outer side of a fixing plate, and the fixing plate and the supporting plate are fixed to the main supporting column through a second anti-loosening bolt, so that the angle of the reinforcing inclined strut can be flexibly adjusted according to actual requirements, and the reinforcing inclined strut and the reinforcing side struts jointly form a stable triangular structure; the stability and reliability of the catenary supporting steel structure under complex working conditions are comprehensively improved, it is ensured that the catenary can stably and reliably operate, and the strict requirements of electrified railways and the like for catenary supporting are met.

Description

Technical Field

[0001] This utility model relates to the field of contact wire support structure technology, specifically a reinforced contact wire support steel structure. Background Technology

[0002] The overhead contact system is an important component of the electrified railway power supply system. It is mainly used to supply power to railway mobile equipment such as electric locomotives or EMUs. The overhead contact system is widely used in electrified railways, including high-speed railways, ordinary passenger dedicated lines and freight railways. In the field of urban rail transit, such as subways and light rail, the overhead contact system is also often used to provide power to urban rail transit vehicles.

[0003] However, the existing reinforced steel structure for overhead contact lines still has some problems in use:

[0004] An existing example is a contact wire column for rail transit with application number CN201621142715.1. The bottom of the contact wire column is provided with a base assembly for fixing it to the foundation surface. The base assembly has at least one rib at the connection position with the column body. The column body adopts segmented nested connection. The top of the column body has an accessory installation base. There is at least one hole on the column body.

[0005] The existing reinforced steel structure of the overhead contact line generates strong airflow and vibration when high-speed trains are running. The support structure is prone to swaying and deformation, which leads to a decrease in structural strength and has an adverse effect on the height and tension control of the overhead contact line. In severe cases, it may even cause power supply failure and affect the normal operation of the railway.

[0006] Therefore, we propose a reinforced steel structure for the overhead contact line to address the problems mentioned above. Utility Model Content

[0007] The purpose of this utility model is to provide a reinforced support steel structure for the overhead contact line, in order to solve the problem mentioned in the background art that when high-speed trains run, the reinforced support steel structure for the overhead contact line is subject to strong airflow and vibration, which can cause the support structure to sway and deform, resulting in a decrease in structural strength. This can have an adverse effect on the height and tension control of the overhead contact line conductors, and in severe cases, may even cause power supply failures, affecting the normal operation of the railway.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a reinforced steel structure for overhead contact lines, comprising main support columns and concrete foundation blocks:

[0009] The main support column has a concrete foundation block cast at its bottom, with mounting holes at its four corners. Several reinforcing ribs are welded inside the main support column. A connecting seat is provided on one outer surface of the upper section of the main support column, and a support seat is provided on the other outer surface of the upper section. The connecting seat and the support seat are threaded together at both ends with a first anti-loosening bolt. A reinforcing side brace is provided in the middle of the support seat, and a movable seat is nested on the outer surface of the reinforcing side brace. A first fixed seat is welded to the bottom of the movable seat, and a reinforcing diagonal brace is rotatably connected to the middle of the first fixed seat. A support plate is provided on one outer surface of the upper section of the main support column, and a fixed plate is provided on the other outer surface of the main support column. A second anti-loosening bolt is threaded together between the support plate and the fixed plate. A second fixed seat is welded to the outer side of the fixed plate, and the other end of the reinforcing diagonal brace is rotatably connected to the middle of the second fixed seat.

[0010] By adopting the above technical solution, the strength and stability of the main support column are enhanced by welding reinforcing ribs inside the main support column, pouring concrete foundation blocks at the bottom and setting installation holes; the reinforcing side braces are installed using connecting seats, support seats and the first anti-loosening bolts, and a triangular stable structure is constructed in conjunction with movable seats, the first fixed seats, the second fixed seats and reinforcing diagonal braces to improve the overall support performance, so as to ensure the stability and reliability of the contact network support structure under complex working conditions and provide solid support for the normal operation of the contact network.

[0011] Preferably, the reinforcing ribs are evenly distributed along the four sides of the main support column, and the reinforcing ribs are distributed in a cross shape.

[0012] By adopting the above technical solution, reinforcing ribs are evenly arranged on all four sides of the main support column and distributed in a cross shape, so that the reinforcing ribs can work together in multiple directions, which can comprehensively enhance the structural strength of the main support column, effectively improve its resistance to compression, bending and torsion, and ensure the stability of the contact wire support structure under complex stress conditions.

[0013] Preferably, the longitudinal sections of both the connecting seat and the support seat are concave, and the longitudinal section of the reinforcing side brace is I-shaped.

[0014] The above technical solution is adopted, and the connecting seat and support seat are designed with concave longitudinal sections, which can better adapt to the connection of components such as reinforced side braces; the reinforced side braces adopt I-shaped longitudinal sections, combined with mechanical properties design, which reduces weight while ensuring strength, and improves the stability and economy of the overall support structure.

[0015] Preferably, the outer surface of the support base is provided with a plurality of first screw holes evenly distributed, and the outer surface of the reinforcing side brace is provided with a plurality of second screw holes. The first screw holes and the middle of the second screw holes are connected by a first fastening bolt, and the second screw holes are arranged laterally along the outer surface of the reinforcing side brace.

[0016] By adopting the above technical solution, first screw holes are evenly opened on the outer surface of the support base, and second screw holes are arranged laterally on the outer surface of the reinforcing side brace. The first fastening bolt passes through the two for threaded connection. The installation position of the reinforcing side brace can be adjusted according to actual needs, achieving flexible assembly, and enhancing the firmness of the connection between the reinforcing side brace and the support base, ensuring the stability of the support structure.

[0017] Preferably, the inner surface of the movable seat is in close contact with the outer surface of the reinforcing side support, and the outer surface of the movable seat is threaded with a second fastening bolt that matches the second screw hole.

[0018] By adopting the above technical solution, the inner surface of the movable seat is closely fitted with the reinforcing side brace. The connection and position fixation of the two are achieved by a second fastening bolt that penetrates the outer surface of the movable seat and matches the second screw hole on the reinforcing side brace. This allows the movable seat to be precisely fixed at a specific position on the reinforcing side brace as needed, thereby flexibly adjusting the angle and position of the reinforcing side brace and improving the adaptability of the support structure to different working conditions.

[0019] Preferably, two sets of bases are symmetrically welded to the upper end face of the concrete foundation block, and an anti-pull-out anchor rod is threaded through and threaded to the middle of the base.

[0020] By adopting the above technical solution, a base is welded to the upper end face of the concrete foundation block, and an anti-pull-out anchor rod is screwed into the middle of the base. The anchor rod is fastened by threaded connection, which increases the friction and pull-out resistance between the concrete foundation block and the ground, effectively preventing the support structure from displaced by external forces and greatly improving the overall stability of the contact wire support steel structure.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The installation holes at the four corners of the concrete foundation block poured at the bottom of the main support column facilitate a stable connection with the ground or other foundations, laying a solid foundation for the entire support structure and effectively resisting the risk of displacement from below. The reinforcing ribs evenly distributed in a cross pattern inside the main support column comprehensively enhance the main support column's resistance to compression, bending, and torsion, greatly improving its structural strength and enabling it to better withstand various stresses imposed by the contact network and the external environment. The connecting seat and the support seat are connected by the first anti-loosening bolt. The concave longitudinal section design fits tightly with the reinforced side brace. Combined with the first screw hole on the outer surface of the support seat and the second screw hole arranged horizontally on the outer surface of the reinforced side brace, the first fastening bolt is used to connect them, realizing flexible adjustment of the installation position of the reinforced side brace. The support layout can be optimized according to the actual working conditions, further improving the structural stability.

[0023] 2. The inner surface of the movable seat is tightly fitted with the reinforcing side brace and fixed by the second fastening bolt that matches the second screw hole. It can move flexibly and be precisely positioned along the reinforcing side brace. The first fixed seat at its bottom is rotatably connected to the reinforcing diagonal brace, and the other end of the reinforcing diagonal brace is rotatably connected to the second fixed seat on the outside of the fixed plate. The fixed plate and the support plate are fixed to the main support column by the second anti-loosening bolt, so that the angle of the reinforcing diagonal brace can be flexibly adjusted according to actual needs. Together with the reinforcing side brace, it forms a stable triangular structure, which comprehensively improves the stability and reliability of the contact wire support steel structure under complex working conditions, ensures that the contact wire can operate stably and reliably, and meets the stringent requirements of electrified railways for contact wire support. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view;

[0025] Figure 2 This is a schematic diagram of the reinforcing rib distribution structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the connecting seat, support seat, and reinforced side brace connection structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the connection structure between the reinforcing diagonal brace and the reinforcing side brace of this utility model;

[0028] Figure 5 This is a schematic diagram of the connection structure between the pull-out anchor rod and the concrete foundation block of this utility model.

[0029] In the diagram: 1. Main support column; 2. Concrete foundation block; 3. Mounting hole; 4. Reinforcing rib; 5. Connecting seat; 6. Support seat; 7. First anti-loosening bolt; 8. First screw hole; 9. Reinforcing side brace; 10. Second screw hole; 11. First fastening bolt; 12. Movable seat; 13. Second fastening bolt; 14. First fixed seat; 15. Reinforcing diagonal brace; 16. Support plate; 17. Fixed plate; 18. Second anti-loosening bolt; 19. Second fixed seat; 20. Base; 21. Pull-out anchor rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Please see Figures 1-5This utility model provides a technical solution: a reinforced steel structure for overhead contact lines, comprising a main support column 1 and a concrete foundation block 2. The bottom of the main support column 1 is cast with a concrete foundation block 2, and mounting holes 3 are provided at the four corners of the concrete foundation block 2. Several reinforcing ribs 4 are welded inside the main support column 1. A connecting seat 5 is provided on one outer surface of the upper section of the main support column 1, and a support seat 6 is provided on the other outer surface of the upper section of the main support column 1. The two ends of the connecting seat 5 and the support seat 6 are respectively threaded and connected by a first anti-loosening bolt 7. A reinforcing rib is provided in the middle of the support seat 6. A strong side brace 9 has a movable seat 12 nested on its outer surface. A first fixed seat 14 is welded to the bottom of the movable seat 12. A reinforcing diagonal brace 15 is rotatably connected to the middle of the first fixed seat 14. A support plate 16 is provided on one outer surface of the upper section of the main support column 1, and a fixed plate 17 is provided on the other outer surface of the main support column 1. A second anti-loosening bolt 18 is threaded through and threaded to the middle of the support plate 16 and the fixed plate 17. A second fixed seat 19 is welded to the outer side of the fixed plate 17, and the other end of the reinforcing diagonal brace 15 is rotatably connected to the middle of the second fixed seat 19. Reinforcing ribs 4 are evenly distributed along the four sides of the main support column 1, and the reinforcing ribs 4 are distributed in a cross shape. The longitudinal sections of the connecting seat 5 and the support seat 6 are both concave, and the longitudinal section of the reinforcing side brace 9 is I-shaped. The outer surface of the support base 6 is evenly provided with a plurality of first screw holes 8, and the outer surface of the reinforcing side support 9 is provided with a plurality of second screw holes 10. The first screw holes 8 and the second screw holes 10 are threaded through and connected to the middle of the first screw holes 8 and the second screw holes 10 are threaded together. The second screw holes 10 are arranged laterally along the outer surface of the reinforcing side support 9. The inner surface of the movable base 12 is tightly fitted to the outer surface of the reinforcing side support 9, and the outer surface of the movable base 12 is threaded through and connected to a second fastening bolt 13 that matches the second screw holes 10.

[0032] The main support column 1 has a concrete foundation block 2 cast at its bottom. Through the mounting holes 3 at its four corners, it can achieve a stable connection to the ground or other foundation structures, providing a stable foundation for the entire support structure. The main support column 1 has evenly distributed reinforcing ribs 4 in a cross-shaped pattern inside, which enhance its compressive, bending, and torsional resistance from multiple directions, improving its overall strength. The connecting seat 5 and support seat 6 at the upper section of the main support column 1 are connected by a first anti-loosening bolt 7. The longitudinal section is concave to facilitate the adaptation of the reinforcing side brace 9. The first screw hole 8 on the outer surface of the support seat 6 and the second screw holes 10 arranged laterally on the outer surface of the reinforcing side brace 9 are connected by a first fastening bolt 11, allowing for flexible adjustment of the installation position of the reinforcing side brace 9. The reinforcing side brace 9 adopts an I-shaped longitudinal section. The design reduces its weight while ensuring strength. The inner surface of the movable seat 12 fits tightly with the reinforcing side brace 9 and is fixed by the second fastening bolt 13 that matches the second screw hole 10. It can move flexibly along the reinforcing side brace 9 and be fixed in position. The first fixed seat 14 at its bottom is rotatably connected to the reinforcing diagonal brace 15. The other end of the reinforcing diagonal brace 15 is rotatably connected to the second fixed seat 19 on the outside of the fixed plate 17. The fixed plate 17 and the support plate 16 are fixed to the main support column 1 by the second anti-loosening bolt 18, so that the reinforcing diagonal brace 15 can adjust its angle according to actual needs. Together with the reinforcing side brace 9, it forms a triangular stable structure, which comprehensively improves the stability and reliability of the entire contact network support steel structure under complex working conditions and ensures the normal operation of the contact network.

[0033] Two sets of bases 20 are symmetrically welded to the upper end face of the concrete foundation block 2. The middle of the base 20 is threaded with an anti-pull-out anchor rod 21.

[0034] Two sets of bases 20, symmetrically welded to the upper end of the concrete foundation block 2, provide a stable connection point for the installation of the pull-out anchor 21. The bases 20 and the concrete foundation block 2 are connected by welding, ensuring a rigid connection between the two and effectively transmitting force. The pull-out anchor 21 passes through the middle of the base 20 and is threaded to it, facilitating installation and disassembly while ensuring the firmness of the connection. The pull-out anchor 21 extends deep into the ground, relying on the friction force generated by the surrounding soil on the anchor surface and the shear strength of the soil itself to form an upward resistance. When the contact network support steel structure is subjected to external forces such as strong winds or upward pull-out forces generated by train operation, the pull-out anchor 21 can transfer these upward pull forces to the surrounding soil, using the soil's resistance to offset the pull-out force, preventing the concrete foundation block 2 from being pulled up or displaced, thereby ensuring that the entire contact network reinforced support steel structure remains stable under complex external force environments and ensuring the stable and reliable operation of the contact network.

[0035] Working principle: For this type of reinforced contact wire support steel structure, a concrete foundation block 2 is poured at the bottom of the main support column 1. Through the mounting holes 3 at the four corners of the concrete foundation block 2, it can be stably connected to the ground or other foundation structures, thus laying a stable foundation for the entire support structure. The reinforcing ribs 4, evenly distributed in a cross shape inside the main support column 1, enhance its compressive, bending, and torsional resistance from multiple directions, improving its strength. The connecting seats 5 and support seats 6 on both sides of the upper section of the main support column 1 are connected by the first anti-loosening bolt 7. The concave longitudinal section facilitates the adaptation of the reinforced side brace 9. The first screw hole 8 on the outer surface of the support seat 6 and the second screw holes 10 arranged laterally on the outer surface of the reinforced side brace 9 are connected by the first fastening bolt 11. The installation position of the reinforced side brace 9 can be flexibly adjusted. The reinforced side brace 9 adopts an I-shaped longitudinal section design, which takes into account both strength and weight optimization. The inner surface of the movable seat 12 is closely fitted with the reinforced side brace 9 and fixed by the second fastening bolt 13 that is adapted to the second screw hole 10. It can move and be positioned flexibly along the reinforced side brace 9. The first fixed seat 14 at its bottom is rotatably connected to the reinforced diagonal brace 15. The other end of the reinforced diagonal brace 15 is rotatably connected to the second fixed seat 19 on the outside of the fixed plate 17. The fixed plate 17 and the support plate 16 are fixed to the main support column 1 by the second anti-loosening bolt 18, so that the angle of the reinforced diagonal brace 15 can be adjusted according to actual needs, and a stable triangular structure is formed with the reinforced side brace 9, which comprehensively enhances the stability of the supporting steel structure under complex working conditions.

[0036] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] 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 reinforced steel structure for overhead contact lines, comprising a main support column (1) and a concrete foundation block (2), characterized in that: The bottom of the main support column (1) is cast with a concrete foundation block (2), and the four corners of the concrete foundation block (2) are provided with mounting holes (3). Several reinforcing ribs (4) are welded inside the main support column (1). A connecting seat (5) is provided on one side of the upper section of the main support column (1), and a support seat (6) is provided on the other side of the upper section of the main support column (1). The two ends of the connecting seat (5) and the support seat (6) are respectively threaded through and connected with a first anti-loosening bolt (7). A reinforcing side brace (9) is provided in the middle of the support seat (6), and a movable seat is nested on the outer surface of the reinforcing side brace (9). 12), the bottom of the movable seat (12) is welded with a first fixed seat (14), the middle of the first fixed seat (14) is rotatably connected with a reinforcing diagonal brace (15), the upper section of the main support column (1) is provided with a support plate (16) on one side of the outer surface, the other side of the main support column (1) is provided with a fixed plate (17), the middle of the support plate (16) and the fixed plate (17) are threaded together with a second anti-loosening bolt (18), the outer side of the fixed plate (17) is welded with a second fixed seat (19), and the other end of the reinforcing diagonal brace (15) is rotatably connected to the middle of the second fixed seat (19).

2. The contact wire reinforced support steel structure according to claim 1, characterized in that: The reinforcing ribs (4) are evenly distributed along the four sides of the main support column (1), and the reinforcing ribs (4) are distributed in a cross shape.

3. The contact wire reinforced support steel structure according to claim 1, characterized in that: The longitudinal sections of the connecting seat (5) and the support seat (6) are both concave, and the longitudinal section of the reinforcing side brace (9) is I-shaped.

4. The contact wire reinforced support steel structure according to claim 1, characterized in that: The outer surface of the support base (6) is uniformly provided with a number of first screw holes (8), and the outer surface of the reinforcing side brace (9) is provided with a number of second screw holes (10). The first screw holes (8) and the second screw holes (10) are threaded through and connected to a first fastening bolt (11), and the second screw holes (10) are arranged laterally along the outer surface of the reinforcing side brace (9).

5. The contact wire reinforced support steel structure according to claim 3, characterized in that: The inner surface of the movable seat (12) is closely connected to the outer surface of the reinforcing side support (9), and the outer surface of the movable seat (12) is threaded with a second fastening bolt (13) that is compatible with the second screw hole (10).

6. The contact wire reinforced support steel structure according to claim 1, characterized in that: The upper end face of the concrete foundation block (2) is symmetrically welded with two sets of bases (20), and the middle of the base (20) is threaded with an anti-pull-out anchor rod (21).

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