Large-scale billboard fixing device for angle steel tower
By combining the adjustable frame and adjustable clamps, the problem of unstable fixation of large-scale notice boards on angle steel towers is solved, achieving multi-dimensional adjustment and wind resistance, protecting the integrity of the tower structure, and facilitating disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国水利水电第七工程局有限公司
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-19
AI Technical Summary
The existing method of fixing large-scale notice boards on angle steel towers is prone to loosening, causing them to shake or fall off. Furthermore, the existing fixing method damages the tower structure and is difficult to disassemble.
It adopts a combination structure of adjustable frame, adjustable clamp and fixed plate, and realizes multi-dimensional adjustment through rotating shaft and guide mounting groove. The sawtooth interlocking structure enhances fixation, and the air guide plate diverts the air force, avoiding welding or drilling.
It enables adaptable installation on different angle steel towers, enhances wind resistance, protects the structural integrity of the tower, and facilitates disassembly.
Smart Images

Figure CN224263775U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary equipment for angle steel towers, specifically to a large-scale notice board fixing device for angle steel towers. Background Technology
[0002] Large-scale billboards typically refer to billboards, traffic signs, or public information signs with a large area (e.g., 5 square meters or more), and are widely used in highways, urban roads, power facilities, and other similar locations. Therefore, these large-scale billboards are usually fixed to specialized iron frames or angle steel towers. However, due to the high wind load, high-strength fixing devices are required to prevent them from falling off or deforming.
[0003] Currently, when fixing large-scale billboards on angle steel towers, the existing methods mostly involve welding or direct bolt fixing. Due to the large wind-exposed area of large billboards, ordinary clamps are prone to loosening, causing the billboards to sway or even fall off. In addition, the existing fixing methods require on-site welding or drilling into the angle steel tower, which can damage the tower structure and make disassembly difficult later. As a result, the existing fixing devices cannot meet the long-term stable installation requirements of large-scale billboards. Utility Model Content
[0004] This utility model provides a large-scale sign fixing device for angle steel towers, which solves the problems of poor installation adaptability and weak wind resistance in the prior art.
[0005] To solve the above-mentioned technical problems, the present invention provides a large-scale sign fixing device for angle steel towers, comprising an adjusting frame, adjustable clamps, and a fixing plate; the adjusting frame includes a rotating seat and an adjusting plate, one side of the rotating seat is rotatably connected to the back of the adjusting plate via a rotating shaft, and the front of the adjusting plate is provided with a guide mounting groove; the adjustable clamps are at least two in number and are evenly arranged on the back of the rotating seat, the adjustable clamps are formed by symmetrically arranged upper clamps and lower clamps connected by a first bolt to form a ring structure, the inner sides of the upper clamps and lower clamps are provided with a serrated interlocking structure; the back of the fixing plate is provided with a sliding part that matches the internal shape of the guide mounting groove, and the fixing plate is provided with multiple mounting holes for fixing the sign on both sides of the sliding part; a wind guide plate is rotatably connected between the fixing plate and the rotating seat.
[0006] As a preferred technical solution of this utility model, the back of the rotating seat is provided with a slot that matches the shape of the angle steel tower between the adjustable clamp assembly.
[0007] As a preferred technical solution of this utility model, the adjusting plate is provided with corresponding connecting seats on the upper and lower sides of the rotating shaft, and the contact surfaces of the rotating shaft and the connecting seats at both ends are provided with radially arranged limiting protrusions in a circumferential manner. At the same time, the upper and lower sides of the connecting seats are fixedly connected to the rotating shaft by second bolts.
[0008] As a preferred embodiment of this utility model, the rotation direction of the rotating shaft is either horizontal or pitch, and the direction of the guide mounting groove is either perpendicular or parallel to the direction of the rotating shaft.
[0009] As a preferred embodiment of this utility model, the outer sides of the upper and lower clamps are covered with plastic protective sleeves to prevent them from rusting.
[0010] As a preferred technical solution of this utility model, the guide mounting groove is a groove structure with open ends, and multiple first fixing holes are provided on both sides of the guide mounting groove. Reinforcing ribs are provided between the upper and lower ends of the guide mounting groove and the adjusting plate.
[0011] As a preferred embodiment of this utility model, the cross-section of the sliding part is U-shaped, and multiple second fixing holes corresponding to the mounting holes are provided on both sides of the sliding part.
[0012] As a preferred technical solution of this utility model, the area of the fixed plate is larger than the area of the rotating seat, so that the air guide plate is an inclined structure as a whole.
[0013] As a preferred technical solution of this utility model, the air guide plate is composed of a plate surface and rotating clamps on both sides, wherein the rotating clamps are located on the same side as the rotating seat and the fixed plate, and the inner side of the rotating clamp is a U-shaped structure for clamping the plate surface. The rotating clamps are fixedly connected to the plate surface by a third bolt passing through the rotating clamps and the two ends of the plate surface.
[0014] The advantages of this utility model compared with the prior art are as follows:
[0015] 1. This fixing device achieves multi-dimensional adjustment through a rotating shaft and guide mounting groove, adapting to different tilt angles and installation positions of angle steel towers;
[0016] 2. This fixing device uses the serrated interlocking of the adjustable clamp to prevent slippage, and the wind force is diverted by the air guide plate on the side of the rotating seat and the fixing plate to reduce the swaying of the sign. At the same time, the clamp structure does not require welding or drilling, which can effectively protect the integrity of the angle steel tower. Furthermore, the outside of the clamp is wrapped with a plastic protective sleeve to prevent the metal clamp from being directly exposed, thus extending its service life. Attached Figure Description
[0017] Figure 1 This utility model relates to a structure for fixing a large-scale notice board on an angle steel tower. Figure 1 .
[0018] Figure 2 This utility model relates to a structure for fixing a large-scale notice board on an angle steel tower. Figure 2 .
[0019] Figure 3 This is a cross-sectional three-dimensional structural diagram of a large-scale notice board fixing device for angle steel towers according to this utility model.
[0020] Figure 4 This is an exploded structural diagram of a large-scale notice board fixing device for angle steel towers according to this utility model.
[0021] As shown in the figure:
[0022] 1. Adjustable frame; 2. Adjustable clamp; 3. Fixing plate; 4. Rotating seat; 5. Adjusting plate; 6. Rotating shaft; 7. Guide mounting groove; 8. Upper clamp; 9. Lower clamp; 10. First bolt; 11. Sliding part; 12. Mounting hole; 13. Air guide plate; 14. Slot; 15. Connecting seat; 16. Limiting protrusion; 17. Second bolt; 18. First fixing hole; 19. Reinforcing rib; 20. Second fixing hole; 21. Plate surface; 22. Rotating clamp; 23. Third bolt. Detailed Implementation
[0023] 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.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0025] Example 1:
[0026] As per the instruction manual Figure 1-4 As shown, a large-scale sign fixing device for angle steel towers includes an adjustable frame 1, an adjustable clamp 2, and a fixing plate 3.
[0027] In this utility model, the adjusting frame 1 includes a rotating seat 4 and an adjusting plate 5. One side of the rotating seat 4 is rotatably connected to the back of the adjusting plate 5 via a rotating shaft 6. The adjusting plate 5 is provided with corresponding connecting seats 15 on the upper and lower sides of the rotating shaft 6. Both ends of the rotating shaft 6 and the contact surfaces with the connecting seats 15 are provided with radially arranged circumferential limiting protrusions 16. At the same time, the upper and lower sides of the connecting seats 15 are fixedly connected to the rotating shaft 6 via second bolts 17. The front of the adjusting plate 5 is provided with a guide mounting groove 7. The rotation direction of the rotating shaft 6 is either horizontal or pitch, and the direction of the guide mounting groove 7 and the rotating shaft 6 is either perpendicular or parallel. The rotating seat 4 and the adjusting plate 5 can be rotated in a suitable direction according to the installation position and the angle of the angle iron tower.
[0028] In this utility model, the number of adjustable clamps 2 is at least two, and they are evenly arranged on the back of the rotating seat 4. The adjustable clamps 2 are formed by connecting the symmetrically arranged upper clamps 8 and lower clamps 9 through the first bolt 10 to form a ring structure. The inner side of the upper clamps 8 and lower clamps 9 is provided with a serrated interlocking structure, and the outer side of the upper clamps 8 and lower clamps 9 is covered with a plastic protective sleeve to prevent them from rusting.
[0029] In this utility model, the back of the fixing plate 3 is provided with a sliding part 11 that matches the internal shape of the guide mounting groove 7. The guide mounting groove 7 is a groove structure with open ends, and multiple first fixing holes 18 are provided on both sides of the guide mounting groove 7. Reinforcing ribs 19 are provided between the upper and lower ends of the guide mounting groove 7 and the adjusting plate 5. The cross-section of the sliding part 11 is a U-shaped structure, and multiple second fixing holes 20 corresponding to the mounting holes 12 are provided on both sides of the sliding part 11. The first fixing holes 18 and the second fixing holes 20 are connected by bolts. The fixing plate 3 is provided with multiple mounting holes 12 for fixing the notice board on both sides of the sliding part 11.
[0030] In this utility model, the area of the fixed plate 3 is larger than the area of the rotating seat 4. The fixed plate 3 and the rotating seat 4 are rotatably connected by a guide plate 13, so that the guide plate 13 is an inclined structure. The guide plate 13 is composed of a plate surface 21 and rotating clamps 22 on both sides. The rotating clamps 22 are located on the same side as the rotating seat 4 and the fixed plate 3, and the inner side of the rotating clamps 22 is a U-shaped structure that clamps the plate surface 21. The rotating clamps 22 are fixedly connected to the plate surface 21 by a third bolt 23 passing through the rotating clamps 22 and the two ends of the plate surface 21.
[0031] In this utility model, the first bolt 10, the third bolt 23, and the bolts connecting the first fixing hole 18 and the second fixing hole 20 are all equipped with matching nuts for fixing.
[0032] In specific implementation, the upper clamp 8 and lower clamp 9 are fitted onto the main member of the angle steel tower and engaged with the column of the main member of the angle steel tower through the slot 14 on the rotating seat 4. They are then secured with the first bolt 10. The serrated structure enhances friction and allows multiple devices to be used to connect and fix a single large-scale signboard simultaneously. A rotating shaft 6 with a suitable rotation angle is selected, allowing the signboard to be adjusted in the vertical plane or horizontally to adapt to the tilt of the angle steel tower. After the angle is adjusted, it is locked by the staggered arrangement of the limiting protrusions 16. The wind guide plate 13 on one side guides the frontal wind force, reducing the stress on the fixing device. At the same time, the sliding part 11 of the fixing plate 3 is inserted into the guide mounting groove 7 and fixed by bolts passing through the corresponding first fixing hole 18 and second fixing hole 20. The wind guide plate 13 is located on the outside of the angle steel tower.
[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.
Claims
1. A fixing device for large-scale notice boards on angle steel towers, characterized in that: It includes an adjustable frame (1), an adjustable clamp (2), and a fixing plate (3); The adjustment frame (1) includes a rotating seat (4) and an adjustment plate (5). One side of the rotating seat (4) is rotatably connected to the back of the adjustment plate (5) via a rotating shaft (6), and the front of the adjustment plate (5) is provided with a guide mounting groove (7). The number of adjustable clamps (2) is at least two, and they are evenly arranged on the back of the rotating seat (4). The adjustable clamps (2) are formed by connecting the symmetrically arranged upper clamps (8) and lower clamps (9) through the first bolt (10) to form a ring structure. The inner sides of the upper clamps (8) and lower clamps (9) are provided with a serrated interlocking structure. The back of the fixing plate (3) is provided with a sliding part (11) that matches the internal shape of the guide mounting groove (7), and the fixing plate (3) is provided with multiple mounting holes (12) for fixing the notice board on both sides of the sliding part (11). A guide plate (13) is rotatably connected between the fixed plate (3) and the rotating seat (4).
2. The fixing device for large-scale notice boards on angle steel towers according to claim 1, characterized in that: The back of the rotating seat (4) is provided with a slot (14) that matches the shape of the angle steel tower between the adjustable clamp (2) components.
3. The fixing device for large-scale notice boards on angle steel towers according to claim 1, characterized in that: The adjusting plate (5) is provided with corresponding connecting seats (15) on the upper and lower sides of the rotating shaft (6), and the contact surfaces of the rotating shaft (6) and the connecting seats (15) are provided with radially arranged limiting protrusions (16) in a circumferential manner. At the same time, the upper and lower sides of the connecting seats (15) are fixedly connected to the rotating shaft (6) by the second bolts (17).
4. The fixing device for large-scale notice boards on angle steel towers according to claim 1, characterized in that: The rotation direction of the rotating shaft (6) is either horizontal or pitch, and the direction of the guide mounting groove (7) is either perpendicular or parallel to the rotating shaft (6).
5. A large-scale notice board fixing device for angle steel towers according to claim 1, characterized in that: The outer sides of the upper clamp (8) and lower clamp (9) are covered with plastic protective sleeves to prevent them from rusting.
6. The fixing device for large-scale notice boards on angle steel towers according to claim 1, characterized in that: The guide mounting groove (7) is a groove structure with open ends, and multiple first fixing holes (18) are provided on both sides of the guide mounting groove (7). Reinforcing ribs (19) are provided between the upper and lower ends of the guide mounting groove (7) and the adjusting plate (5).
7. The fixing device for large-scale notice boards on angle steel towers according to claim 1, characterized in that: The sliding part (11) has a U-shaped cross-section, and the sliding part (11) has multiple second fixing holes (20) on both sides corresponding to the mounting hole (12).
8. A large-scale notice board fixing device for angle steel towers according to claim 1, characterized in that: The area of the fixed plate (3) is larger than the area of the rotating seat (4), so that the air guide plate (13) is an inclined structure as a whole.
9. A large-scale notice board fixing device for angle steel towers according to claim 1, characterized in that: The air guide plate (13) is composed of a plate surface (21) and rotating clamps (22) on both sides. The rotating clamps (22) are located on the same side as the rotating seat (4) and the fixed plate (3). The inner side of the rotating clamps (22) is a U-shaped structure that clamps the plate surface (21). The rotating clamps (22) are fixedly connected to the plate surface (21) by passing through the rotating clamps (22) and the two ends of the plate surface (21) by a third bolt (23).