Protective structure for steel arch bridge construction in strong wind environment

Abstract

The utility model discloses a protective structure for steel arch bridge construction in a strong wind environment, which belongs to the technical field of steel arch bridge construction and is characterized by comprising a base, upright posts are fixedly connected to two sides of the top of the base, a mounting frame is arranged between opposite sides of the two upright posts, and a windproof plate is rotatably connected to the inside of the mounting frame. A lifting assembly is arranged at the bottom of the mounting frame and comprises a first connecting block, a connecting block is fixedly connected to the rear side of the mounting frame, by arranging an adjusting assembly, in a strong wind environment, the adjusting assembly can quickly adjust the angle of the windproof plate according to the real-time change of the wind direction, and by adjusting the angle of the windproof plate in time, the windproof plate is prevented from being damaged. A proper included angle is kept between the windproof plate and the wind direction, the impact force of wind can be dispersed to the maximum extent, invasion of strong wind to a steel arch bridge construction area is effectively blocked, a stable working environment is provided for construction, and therefore the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel arch bridge construction, in particular to a protective structure for steel arch bridge construction in a strong wind environment. Background Art

[0002] A steel arch bridge is an arch bridge made of steel as the main building material. It is mainly composed of arch ribs, ties, hangers, bridge decks and other parts. The arch ribs are the main load-bearing structure of the steel arch bridge. Their shape is usually arc-shaped and can transfer the load on the bridge deck to the arch foot. Strong winds have a great impact on the construction quality of steel arch bridges. During the arch rib assembly stage, strong winds may cause the position of the arch rib segments to shift, affecting the assembly accuracy. Therefore, the protective structure can effectively block or weaken the impact of the wind and ensure that the linear shape of the arch ribs meets the design requirements.

[0003] Traditional protective structure designs are mostly based on fixed protective functions, and the main consideration is to provide stable protection under specific construction scenarios and expected wind conditions. However, during the construction of steel arch bridges, if the angle of the windbreak is fixed, when the wind direction does not match the angle of the windbreak, the impact force of the strong wind cannot be effectively dispersed and blocked. Construction workers and arch rib segments will still be affected by the strong wind, thereby reducing the protective effect. In addition, the requirements for protective structures vary at different construction stages. For example, during the arch foot foundation construction stage, only a lower height of protection may be required to block wind and sand and small objects near the ground. When the construction progresses to the arch rib installation stage, the required height of protection is greatly increased, which may not effectively cover the arch rib installation area, further reducing the protective effect.

[0004] Therefore, a protective structure for steel arch bridge construction in strong wind environment is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a protective structure for the construction of steel arch bridges in a strong wind environment, which can solve the problem that most of the existing protective structure designs are based on fixed protective functions, and mainly consider providing stable protection under specific construction scenarios and expected wind conditions. However, during the construction of the steel arch bridge, if the angle of the windbreak is fixed, when the wind direction does not match the angle of the windbreak, the impact force of the strong wind cannot be effectively dispersed and blocked, and the construction workers and arch rib segments will still be affected by the strong wind, thereby reducing the protective effect. In addition, the requirements for protective structures are different in different construction stages. For example, in the arch foot foundation construction stage, only a lower height of protection may be required to block wind and sand and small objects near the ground. When the construction progresses to the arch rib installation stage, the height of the protection required is greatly increased, which may not effectively cover the arch rib installation area, further reducing the problem of protective effect.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a protective structure for steel arch bridge construction in a strong wind environment, comprising a base, columns are fixedly connected to both sides of the top of the base, a mounting frame is provided between opposite sides of the two columns, a windbreak is rotatably connected to the inside of the mounting frame, a lifting assembly is provided at the bottom of the mounting frame, the lifting assembly includes a first connecting block, a connecting block is fixedly connected to the rear side of the mounting frame, a mounting slot is provided at the top of the connecting block, and an adjustment assembly is provided inside the mounting slot;

[0007] The adjusting assembly includes a cylinder, a moving block, a slider, a linkage block and an adjusting rod. The cylinder is fixedly connected to the rear side of the inner wall of the mounting groove, the moving block is movably connected inside the mounting groove and the rear side of the moving block is fixedly connected to the telescopic end of the cylinder, the slider is fixedly connected to both sides of the moving block, the linkage block is fixedly connected to the middle part of the bottom of the wind shield, and the adjusting rod is rotatably connected to the moving block and the linkage block on one side respectively.

[0008] Preferably, the first connecting block is fixedly connected to the bottom of the mounting frame, and the number of the first connecting blocks is set to two.

[0009] Preferably, a groove is provided on the top of the base, a bidirectional screw rod is rotatably connected inside the groove and a turning handle is fixedly connected to the right side of the bidirectional screw rod, screw sleeves are threadedly connected on both sides of the surface of the bidirectional screw rod, a second connecting block is fixedly connected to the top of the screw sleeve, and a lifting rod is rotatably connected between the second connecting block and the opposite side of the first connecting block.

[0010] Preferably, a limiting rod is fixedly connected between adjacent sides of the two upright posts, and the limiting rod passes through the second connecting block and is slidably connected to the second connecting block.

[0011] Preferably, a convex block is fixedly connected to the left side of the left column, and a circular hole is opened inside the convex block.

[0012] Preferably, a concave block is fixedly connected to the right side of the right column, an insertion rod is passed through and slidably connected to the interior of the concave block, and the insertion rod is used in conjunction with the round hole, a fastening spring is sleeved on the surface of the insertion rod, and the fastening spring is fixedly connected to the side close to the insertion rod and the concave block respectively.

[0013] Preferably, sliding grooves are provided on both sides of the inner wall of the installation groove, and the sliding block is slidably connected inside the sliding grooves.

[0014] Preferably, guide grooves are provided on opposite sides of the two uprights, and guide blocks are fixedly connected to both sides of the mounting frame, and the guide blocks are used in conjunction with the guide grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This application provides an adjustment component that can quickly adjust the angle of the wind shield according to real-time changes in wind direction in a strong wind environment. By timely adjusting the angle of the wind shield, the wind shield maintains a suitable angle with the wind direction, which can disperse the impact of the wind to the greatest extent, effectively blocking the invasion of strong winds on the steel arch bridge construction area, providing a stable working environment for construction, and thus improving the protection effect;

[0017] 2. By setting up a lifting component, this application can flexibly adjust the height of the mounting frame and the windproof plate according to the protection requirements, so that the windproof plate can effectively cover the arch rib installation area, avoiding the influence of strong winds on the arch rib splicing accuracy, thereby improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall structural diagram of the protective structure for steel arch bridge construction in a strong wind environment of the present invention;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of part of the structure;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the lifting assembly of the utility model;

[0022] Figure 5 This is a structural diagram of the concave block of the utility model.

[0023] In the figure, 1. base; 2. column; 3. mounting frame; 4. wind shield; 5. lifting assembly; 501. first connecting block; 502. bidirectional screw rod; 503. turning handle; 504. screw sleeve; 505. second connecting block; 506. lifting rod; 6. connecting block; 7. mounting groove; 8. adjusting assembly; 801. cylinder; 802. moving block; 803. slider; 804. linkage block; 805. adjusting rod; 9. groove; 10. limiting rod; 11. convex block; 12. round hole; 13. concave block; 14. insertion rod; 15. fastening spring; 16. slide groove; 17. guide groove; 18. guide block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 , this utility model provides a technical solution:

[0026] A protective structure for steel arch bridge construction in a high wind environment includes a base 1, columns 2 are fixedly connected to both sides of the top of the base 1, a mounting frame 3 is provided between opposite sides of the two columns 2, a windbreak 4 is rotatably connected to the interior of the mounting frame 3, a lifting assembly 5 is provided at the bottom of the mounting frame 3, the lifting assembly 5 includes a first connecting block 501, a connecting block 6 is fixedly connected to the rear side of the mounting frame 3, a mounting slot 7 is defined at the top of the connecting block 6, and an adjustment assembly 8 is provided inside the mounting slot 7;

[0027] The adjustment assembly 8 includes a cylinder 801, a moving block 802, a slider 803, a linkage block 804 and an adjustment rod 805. The cylinder 801 is fixedly connected to the rear side of the inner wall of the mounting groove 7, the moving block 802 is movably connected to the inside of the mounting groove 7 and the rear side of the moving block 802 is fixedly connected to the telescopic end of the cylinder 801, the slider 803 is fixedly connected to both sides of the moving block 802, the linkage block 804 is fixedly connected to the middle part of the bottom of the wind shield 4, and the adjustment rod 805 is rotatably connected to one side close to the moving block 802 and the linkage block 804 respectively.

[0028] In this embodiment: by setting an adjustment component 8, when it is necessary to adjust the angle of the wind shield 4, the telescopic end of the cylinder 801 will drive the moving block 802 to move in the installation groove 7, and the movement of the moving block 802 can be transmitted to the linkage block 804 at the bottom of the wind shield 4 through the adjustment rod 805. Since the adjustment rod 805 is rotatably connected to the moving block 802 and the linkage block 804, when the moving block 802 moves, the adjustment rod 805 will rotate around the connection point with the moving block 802 and the linkage block 804, thereby driving the linkage block 804 to move. Because the wind shield 4 is rotatably connected to the inside of the mounting frame 3, the movement of the linkage block 804 will cause the wind shield 4 to rotate around its connection point with the mounting frame 3, thereby realizing the adjustment of the angle of the wind shield 4.

[0029] Specifically, such as Figure 4 As shown, the first connection block 501 is fixedly connected to the bottom of the mounting frame 3, and the number of the first connection blocks 501 is set to two.

[0030] Specifically, such as Figure 1 、 Figure 4 As shown, a groove 9 is provided at the top of the base 1, a bidirectional screw rod 502 is rotatably connected inside the groove 9, and a turning handle 503 is fixedly connected to the right side of the bidirectional screw rod 502, both sides of the surface of the bidirectional screw rod 502 are threadedly connected with a screw sleeve 504, the top of the screw sleeve 504 is fixedly connected with a second connecting block 505, and a lifting rod 506 is rotatably connected between the second connecting block 505 and the opposite side of the first connecting block 501.

[0031] Specifically, such as Figure 4 As shown, a limiting rod 10 is fixedly connected between the adjacent sides of the two upright posts 2 , and the limiting rod 10 passes through the second connecting block 505 and is slidably connected to the second connecting block 505 .

[0032] In this embodiment: by setting up a lifting component 5, rotating the handle 503 can drive the bidirectional screw rod 502 to rotate. When the bidirectional screw rod 502 rotates, the two screw sleeves 504 will move toward or oppositely. When the screw sleeve 504 moves, it will drive the lifting rod 506 to move through the second connecting block 505, and when the lifting rod 506 moves, it will push the mounting frame 3 to rise or fall, and the limiting rod 10 has a limiting effect on the second connecting block 505, so that it can be ensured that the mounting frame 3 will always move stably in the vertical direction during the lifting process, preventing it from deflecting or shaking, thereby improving its stability in use.

[0033] Specifically, such as Figure 1 As shown, a convex block 11 is fixedly connected to the left side of the left column 2 , and a circular hole 12 is opened inside the convex block 11 .

[0034] Specifically, such as Figure 1 、 Figure 5 As shown, a concave block 13 is fixedly connected to the right side of the right column 2, and an insertion rod 14 is passed through and slidably connected to the inside of the concave block 13, and the insertion rod 14 is used in conjunction with the circular hole 12. A fastening spring 15 is sleeved on the surface of the insertion rod 14, and the fastening spring 15 is fixedly connected to the side close to the insertion rod 14 and the concave block 13 respectively.

[0035] In this embodiment: through the above settings, the convex block 11 and the concave block 13 cooperate with the structure of the plug rod 14 and the spring to make the splicing process between the two protective structures simple and quick. Construction workers do not need to use complicated tools or perform tedious bolt connection operations. They only need to insert the convex block 11 into the concave block 13 and rely on the plug rod 14 to automatically lock to complete the splicing, thereby connecting multiple protective structures according to usage requirements, and at the same time can greatly save installation time and improve installation progress.

[0036] Specifically, such as Figure 2 As shown, sliding grooves 16 are provided on both sides of the inner wall of the installation groove 7 , and the slider 803 is slidably connected inside the sliding grooves 16 .

[0037] Specifically, such as Figure 1 、 Figure 2 As shown, a guide groove 17 is provided on the opposite side of the two uprights 2 , and guide blocks 18 are fixedly connected to both sides of the mounting frame 3 , and the guide blocks 18 are used in conjunction with the guide groove 17 .

[0038] In this embodiment: through the above settings, the stable sliding of the slider 803 in the slide groove 16 ensures the accuracy of the movement trajectory of the moving block 802, so that the windbreak 4 can be more accurately adjusted to the position with the best angle with the wind direction, thereby improving the windproof effect, and the cooperation of the guide block 18 and the guide groove 17 can provide a stable guide for the lifting and lowering of the mounting frame 3, which can effectively prevent the mounting frame 3 from tilting or offsetting due to external interference, thereby ensuring the stability of the windbreak 4 during movement.

[0039] Working principle: First, place the protective structure as a whole in an appropriate area. When the height of the wind shield 4 needs to be adjusted, the operator can drive the bidirectional screw rod 502 to rotate by turning the handle 503. When the bidirectional screw rod 502 rotates, it will drive the two screw sleeves 504 to move toward or oppositely. When the screw sleeve 504 moves, it will drive the second connecting block 505 to drive the lifting rod 506 to move, so that the lifting rod 506 will push the mounting frame 3 to rise or fall along the guide groove 17 on the column 2, so that the height of the mounting frame 3 and the wind shield 4 can be flexibly adjusted. When the angle of the wind shield 4 needs to be adjusted, start the cylinder 8 01, the telescopic end of the cylinder 801 will push or pull the moving block 802 to move in the installation slot 7, and the movement of the moving block 802 will be transmitted to the linkage block 804 at the bottom of the wind shield 4 through the adjusting rod 805. Since the adjusting rod 805 is rotatably connected to the moving block 802 and the linkage block 804, when the moving block 802 moves, the adjusting rod 805 will rotate around the connection point with the moving block 802 and the linkage block 804, thereby driving the linkage block 804 to move. The movement of the linkage block 804 will cause the wind shield 4 to rotate around its connection point with the mounting frame 3, thereby realizing the adjustment of the angle of the wind shield 4.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A protective structure for steel arch bridge construction in a strong wind environment, comprising a base (1), characterized in that: Both sides of the top of the base (1) are fixedly connected to columns (2), a mounting frame (3) is provided between opposite sides of the two columns (2), a windbreak plate (4) is rotatably connected inside the mounting frame (3), a lifting assembly (5) is provided at the bottom of the mounting frame (3), the lifting assembly (5) comprises a first connecting block (501), a connecting block (6) is fixedly connected to the rear side of the mounting frame (3), a mounting slot (7) is provided at the top of the connecting block (6), and an adjusting assembly (8) is provided inside the mounting slot (7); The adjustment assembly (8) comprises a cylinder (801), a moving block (802), a slider (803), a linkage block (804) and an adjustment rod (805); the cylinder (801) is fixedly connected to the rear side of the inner wall of the installation groove (7); the moving block (802) is movably connected inside the installation groove (7) and the rear side of the moving block (802) is fixedly connected to the telescopic end of the cylinder (801); the slider (803) is fixedly connected to both sides of the moving block (802); the linkage block (804) is fixedly connected to the middle part of the bottom of the windproof plate (4); and the adjustment rod (805) is rotatably connected to the moving block (802) and the linkage block (804) on one side thereof.

2. The protective structure for steel arch bridge construction in a strong wind environment according to claim 1, characterized in that: The first connection block (501) is fixedly connected to the bottom of the mounting frame (3), and the number of the first connection blocks (501) is set to two.

3. The protective structure for steel arch bridge construction in a strong wind environment according to claim 1, characterized in that: A groove (9) is provided on the top of the base (1), a bidirectional screw rod (502) is rotatably connected inside the groove (9), and a turning handle (503) is fixedly connected to the right side of the bidirectional screw rod (502), both sides of the surface of the bidirectional screw rod (502) are threadedly connected to screw sleeves (504), the top of the screw sleeve (504) is fixedly connected to a second connecting block (505), and a lifting rod (506) is rotatably connected between the second connecting block (505) and the opposite side of the first connecting block (501).

4. The protective structure for steel arch bridge construction in a strong wind environment according to claim 3, characterized in that: A limiting rod (10) is fixedly connected between the adjacent sides of the two uprights (2), and the limiting rod (10) passes through the second connecting block (505) and is slidably connected to the second connecting block (505).

5. The protective structure for steel arch bridge construction in a strong wind environment according to claim 1, characterized in that: A convex block (11) is fixedly connected to the left side of the left upright column (2), and a circular hole (12) is provided inside the convex block (11).

6. The protective structure for steel arch bridge construction in a strong wind environment according to claim 5, characterized in that: A concave block (13) is fixedly connected to the right side of the right upright column (2); an insertion rod (14) is passed through the interior of the concave block (13) and is slidably connected thereto, and the insertion rod (14) is used in conjunction with the circular hole (12); a fastening spring (15) is sleeved on the surface of the insertion rod (14); and the fastening spring (15) is fixedly connected to the insertion rod (14) and the concave block (13) on one side thereof.

7. The protective structure for steel arch bridge construction in a strong wind environment according to claim 1, characterized in that: Slide grooves (16) are provided on both sides of the inner wall of the installation groove (7), and the slider (803) is slidably connected inside the slide grooves (16).

8. The protective structure for steel arch bridge construction in a strong wind environment according to claim 1, characterized in that: A guide groove (17) is provided on one side opposite to the two uprights (2), and guide blocks (18) are fixedly connected to both sides of the mounting frame (3), and the guide blocks (18) are used in conjunction with the guide groove (17).

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