Bridge cable anchor head protection device

Abstract

This utility model relates to the field of protective devices and discloses a protective device for bridge cable anchor heads, including an anchor plate, a rectangular plate connected above the anchor plate, a lower protective cover connected to the rectangular plate, a lower connecting plate connected to the lower protective cover, a lower inner protective layer connected inside the lower protective cover, a first slot on the lower protective cover, a second slot on the lower inner protective layer, and sealing strips connected to the first and second slots. An upper protective cover is connected above the lower protective cover, an upper inner protective layer connected inside the upper protective cover, and an upper connecting plate connected to the upper protective cover. A first locking block and a second locking block are respectively connected to the upper protective cover and the upper inner protective layer. In this utility model, the first slot, the second slot, the sealing strip, and the locking block and slot structure form a multiple seal, effectively preventing rainwater and moisture from entering and protecting the anchor head from corrosion.

Description

Technical Field

[0001] This utility model relates to the field of protective devices, and in particular to a protective device for bridge cable anchor heads. Background Technology

[0002] In bridge engineering, cable anchors are key components connecting cables to the main structure of the bridge. They are exposed to the external environment for a long time and are susceptible to rainwater erosion, which can lead to anchor corrosion and performance degradation, thereby threatening the safety of the bridge structure. Existing anchor protection devices have problems such as poor sealing performance, inability to effectively prevent rainwater infiltration, inconvenient installation and disassembly, and difficulty in later maintenance and repair.

[0003] Therefore, those skilled in the art have provided a bridge cable anchor head protection device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a bridge cable anchor head protection device. Through the cooperation of the first slot, the second slot and the sealing strip, as well as the locking block and slot structure between the upper and lower protective covers, multiple seals are formed to effectively block rainwater, moisture and other substances from entering and protect the anchor head from corrosion.

[0005] To achieve the above objectives, this utility model provides a bridge cable anchor head protection device, including an anchor plate, a rectangular plate connected above the anchor plate, a first bolt connected to the rectangular plate, a lower protective cover connected to the rectangular plate, an annular plate connected to the outside of the lower protective cover, a lower connecting plate connected to the top of the lower protective cover, a lower inner protective layer connected inside the lower protective cover, a fixing column connected to the lower inner protective layer, a first slot provided on the lower protective cover, a second slot provided on the lower inner protective layer, sealing strips connected to both the first and second slots, a guide plate connected inside the lower protective cover, an upper protective cover connected above the lower protective cover, an upper inner protective layer connected inside the upper protective cover, an upper connecting plate connected to the outside of the upper protective cover, a first locking block and a second locking block respectively connected to the upper protective cover and the upper inner protective layer, a second bolt connected to the upper connecting plate, and a limit nut connected to the second bolt.

[0006] The above technical solution uses an anchor plate as a base, with a rectangular plate securely connected to it by a first bolt to form the mounting base of the protective device. On this basis, the lower protective cover is fixedly connected to the rectangular plate, and the annular plate further reinforces the connection between the two, enhancing the overall structural stability. The upper and lower protective covers are detachably fastened by the lower connecting plate and the upper connecting plate, in conjunction with the second bolt and the limiting nut. This not only facilitates installation but also allows for easy disassembly in the later stages, enabling inspection and maintenance of the anchor head. This effectively solves the problem of inconvenient installation and maintenance of traditional protective devices.

[0007] Furthermore, the rectangular plate is installed on top of the anchor plate, and the rectangular plate has a plurality of first threaded holes. The rectangular plate and the anchor plate are bolted together by the first bolts, and the first bolts are threadedly connected to the anchor plate and the rectangular plate respectively.

[0008] Through the above technical solution, the rectangular plate and the anchor plate are threadedly connected by the first threaded hole and the first bolt. This connection method is not only firmly installed, but also allows for quick disassembly of the rectangular plate during later bridge maintenance, facilitating the inspection and repair of the anchor plate and anchor head, greatly improving maintenance efficiency and reducing maintenance costs.

[0009] Furthermore, the lower protective cover is fixedly connected to the rectangular plate, the annular plate is fixedly installed at the bottom of the outer wall of the lower protective cover, the bottom end of the annular plate is fixedly connected to the rectangular plate, and the lower connecting plate is fixedly connected to the top of the outer wall of the lower protective cover;

[0010] Through the above technical solution, the annular plate tightly connects the lower protective cover to the rectangular plate, so that the lower protective cover will not easily loosen or shift when subjected to external environmental forces, providing a stable protective space for the internal anchor head. The lower connecting plate provides a reliable interface for the connection between the upper and lower protective covers, ensuring the sealing and integrity of the entire protective device.

[0011] Furthermore, one end of the fixing column is circumferentially distributed and fixedly installed on the outer wall of the lower inner protective layer, and the other end of the fixing column is fixedly connected to the inner wall of the lower protective cover;

[0012] Through the above technical solution, the circumferentially distributed fixing columns firmly fix the lower inner protective layer to the inner wall of the lower protective cover, forming a double-layer protective structure. This structure can effectively buffer the physical impact of the external environment on the anchor head, while reducing the direct contact between the external environment and the anchor head, thereby reducing the risk of anchor head corrosion and significantly improving the protective performance.

[0013] Furthermore, the first card slot and the second card slot are arranged in a ring shape, and the sealing strip is movably installed inside the first card slot and the second card slot, and is tightly fitted to the first card slot and the second card slot;

[0014] Through the above technical solution, the first and second grooves set in a ring fit tightly with the sealing strip to form a double sealing defense line. No matter if it is rainwater, moisture or corrosive gas, it is difficult to penetrate this defense line, effectively preventing external moisture and harmful media from entering the interior of the protective device, creating a dry and safe environment for the anchor head, and preventing the anchor head from rusting and being damaged due to moisture.

[0015] Furthermore, both the lower protective cover and the upper protective cover are fixedly connected to a fireproof and heat-insulating layer. The guide plate is installed between the lower protective cover and the lower inner protective layer and is fixedly connected to the rectangular plate. One side of the guide plate is fixedly connected to the outer wall of the lower inner protective layer. The outer wall of the lower protective cover is provided with multiple drainage holes.

[0016] Through the above technical solutions, the fireproof and heat-insulating layer can effectively resist the attack of high temperature and fire. When encountering extreme situations such as fire, it can prevent the anchor head from deteriorating due to high temperature, ensuring the safety of the bridge structure. The guide plate and drainage hole work together to guide the water generated in the protective cover out in time, avoiding water accumulation and corrosion of the anchor head, and further improving the waterproof performance of the protective device.

[0017] Furthermore, the upper protective cover is fixedly connected to the upper connecting plate, and the fixing post is fixedly connected between the upper protective cover and the upper inner protective layer. The top end of the upper inner protective layer is fixedly connected to the upper protective cover. The first locking block is fixedly connected to the bottom end of the upper protective cover, and the second locking block is fixedly connected to the bottom end of the upper inner protective layer. The first locking block and the second locking block are arranged in a ring and are consistent with the shape and size of the first slot and the second slot.

[0018] Through the above technical solution, the first and second locking blocks are consistent in shape and size with the first and second locking slots, enabling the upper and lower protective covers to be precisely aligned. During installation, this precise fit is not only convenient and quick, but also ensures the sealing of the connection, ensuring the protective effect of the entire protective device and effectively preventing the influence of external environmental factors on the anchor head.

[0019] Furthermore, both the lower connecting plate and the upper connecting plate are provided with a plurality of second threaded holes, the second bolts are threadedly connected to the lower connecting plate and the upper connecting plate respectively, and the limiting nut is threadedly connected to the second bolt;

[0020] Through the above technical solution, the combination of the second threaded hole, the second bolt, and the limiting nut enables the rapid installation and disassembly of the upper and lower protective covers. When performing routine inspections, maintenance, or replacements of the anchor head, no complicated tools or operations are required. The upper protective cover can be opened simply by unscrewing the limiting nut and the second bolt, which greatly improves the convenience of maintenance and reduces the difficulty and cost of maintenance work.

[0021] This utility model has the following beneficial effects:

[0022] 1. The present invention proposes a bridge cable anchor head protection device, which forms a multi-layer seal through the cooperation of the first slot, the second slot and the sealing strip, as well as the locking block and slot structure between the upper and lower protective covers, effectively blocking rainwater and moisture from entering and protecting the anchor head from corrosion.

[0023] 2. The present invention proposes a bridge cable anchor head protection device, wherein the rectangular plate and the anchor plate are connected by a first bolt, and the upper and lower protective covers are connected by a second bolt and a limit nut. It is easy to disassemble and assemble, facilitates regular inspection and maintenance of the anchor head, reduces maintenance costs, and improves the safety of bridge operation. Attached Figure Description

[0024] Figure 1 This is an isometric drawing of a bridge cable anchor head protection device proposed in this utility model;

[0025] Figure 2 This is a bottom view of a bridge cable anchor head protection device proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of the internal structure of a bridge cable anchor head protection device proposed in this utility model;

[0027] Figure 4 This is a cross-sectional view of the upper protective cover of a bridge cable anchor head protection device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the lower protective cover of a bridge cable anchor head protection device proposed in this utility model;

[0029] Figure 6 This is a cross-sectional view of the lower protective cover of a bridge cable anchor head protection device proposed in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Anchor plate; 2. Rectangular plate; 3. First threaded hole; 4. First bolt; 5. Lower protective cover; 6. Annular plate; 7. Lower connecting plate; 8. Second threaded hole; 9. Lower inner protective layer; 10. Fixing post; 11. First slot; 12. Second slot; 13. Sealing strip; 14. Fireproof and heat-insulating layer; 15. Guide plate; 16. Drain hole; 17. Upper protective cover; 18. Upper inner protective layer; 19. Upper connecting plate; 20. First locking block; 21. Second locking block; 22. Second bolt; 23. Limiting nut. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1-3 This utility model provides a specific implementation method:

[0034] A bridge cable anchor head protection device includes an anchor plate 1, a rectangular plate 2 connected above the anchor plate 1, and a first bolt 4 connected to the rectangular plate 2. Based on the anchor plate 1, the rectangular plate 2 is securely connected to it via the first bolt 4, forming the mounting base of the protection device. A lower protective cover 5 is connected to the rectangular plate 2, an annular plate 6 is connected to the outside of the lower protective cover 5, a lower connecting plate 7 is connected to the top of the lower protective cover 5, a lower inner protective layer 9 is connected inside the lower protective cover 5, a fixing post 10 is connected to the lower inner protective layer 9, a first slot 11 is formed on the lower protective cover 5, a second slot 12 is formed on the lower inner protective layer 9, and sealing strips 13 are connected to both the first slot 11 and the second slot 12. A guide plate 15 is connected inside the lower protective cover 5, and an upper protective cover 17 is connected above the lower protective cover 5. The upper protective cover 17 is internally connected to an upper inner protective layer 18. Through the double-layer design of the lower protective cover 5 and the lower inner protective layer 9, and the upper protective cover 17 and the upper inner protective layer 18, a dual protection of physical barrier and chemical protection is formed. The upper protective cover 17 is externally connected to an upper connecting plate 19. The upper protective cover 17 and the upper inner protective layer 18 are respectively connected to a first locking block 20 and a second locking block 21. The annular engagement of the first locking groove 11 and the second locking groove 12 with the first locking block 20 and the second locking block 21, combined with the elastic seal of the sealing strip 13, forms a three-level waterproof defense line to ensure that the anchor head is in a dry environment for a long time. The upper connecting plate 19 is connected to a second bolt 22, and the second bolt 22 is connected to a limit nut 23. The upper and lower protective covers 5 are connected by the second bolt 22 and the limit nut 23, which can be quickly disassembled and assembled.

[0035] Reference Figure 4-6A rectangular plate 2 is installed on top of the anchor plate 1. Multiple first threaded holes 3 are provided on the rectangular plate 2. The rectangular plate 2 and the anchor plate 1 are bolted together by first bolts 4. The first bolts 4 are threaded onto both the anchor plate 1 and the rectangular plate 2. Through the engagement of the first threaded holes 3 and the first bolts 4, the rectangular plate 2 and the anchor plate 1 are threaded together. This connection method not only ensures a secure installation but also allows for quick disassembly of the rectangular plate 2 during later bridge maintenance, facilitating the inspection and repair of the anchor plate 1 and anchor head, greatly improving maintenance efficiency and reducing maintenance costs. The lower protective cover 5 is fixedly connected to the rectangular plate 2. An annular plate 6 is fixedly installed on the bottom of the outer wall of the lower protective cover 5, with its bottom end fixedly connected to the rectangular plate 2. The lower connecting plate 7 is fixedly connected to the top of the outer wall of the lower protective cover 5. Next, the annular plate 6 tightly connects the lower protective cover 5 to the rectangular plate 2, ensuring that the lower protective cover 5 will not easily loosen or shift when subjected to external environmental forces, providing a stable protective space for the internal anchor head. The lower connecting plate 7 provides a reliable interface for the connection between the upper and lower protective covers 5, ensuring the sealing and integrity of the entire protective device. One end of the fixing column 10 is circumferentially distributed and fixedly installed on the outer wall of the lower inner protective layer 9, while the other end of the fixing column 10 is fixedly connected to the inner wall of the lower protective cover 5. The circumferentially distributed fixing columns 10 firmly fix the lower inner protective layer 9 to the inner wall of the lower protective cover 5, forming a double-layer protective structure. This structure can effectively buffer the physical impact of the external environment on the anchor head, while reducing the direct contact between the external environment and the anchor head, thereby reducing the corrosion of the anchor head. To significantly improve protection performance, the first and second slots 11 and 12 are arranged in a ring shape. The sealing strip 13 is movably installed inside the first and second slots 11 and 12 and fits tightly against them. The ring-shaped first and second slots 11 and 12, in close cooperation with the sealing strip 13, form a double sealing barrier. Rainwater, moisture, and corrosive gases are difficult to penetrate this barrier, effectively preventing external moisture and harmful media from entering the protective device. This creates a dry and safe environment for the anchor head, preventing it from rusting or being damaged due to moisture. Fireproof and heat-insulating layers 14 are fixedly connected inside both the lower protective cover 5 and the upper protective cover 17. The guide plate 15 is installed between the lower protective cover 5 and the lower inner protective layer 9 and is fixed to the rectangular plate 2. The upper protective cover 17 is fixedly connected to the outer wall of the lower inner protective layer 9 on one side. Multiple drainage holes 16 are provided on the outer wall of the lower protective cover 5. The fireproof and heat-insulating layer 14 can effectively resist high temperatures and fires. In extreme situations such as fires, it can prevent the anchor head from degrading due to high temperatures, ensuring the safety of the bridge structure. The guide plate 15 and drainage holes 16 work together to guide and drain the water generated inside the protective cover in a timely manner, preventing water accumulation from corroding the anchor head and further improving the waterproof performance of the protective device. The upper protective cover 17 is fixedly connected to the upper connecting plate 19. A fixing post 10 is fixedly connected between the upper protective cover 17 and the upper inner protective layer 18. The top of the upper inner protective layer 18 is fixedly connected to the upper protective cover 17. The first locking block 20 is fixedly connected to the bottom of the upper protective cover 17.The second locking block 21 is fixedly connected to the bottom end of the upper inner protective layer 18. The first locking block 20 and the second locking block 21 are arranged in a ring shape, consistent with the shape and size of the first locking groove 11 and the second locking groove 12. The consistent shape and size of the first locking block 20 and the second locking block 21 with the first locking groove 11 and the second locking groove 12 allows the upper and lower protective covers 5 to be precisely aligned. During installation, this precise fit is not only convenient and quick, but also ensures the sealing of the connection, ensuring the protective effect of the entire protective device and effectively preventing the influence of external environmental factors on the anchor head. The lower connecting plate 7 and the upper connecting plate Multiple second threaded holes 8 are provided on the upper and lower protective covers 19. Second bolts 22 are threadedly connected to the lower connecting plate 7 and the upper connecting plate 19, respectively. Limiting nuts 23 are threadedly connected to the second bolts 22. The combination of the second threaded holes 8, the second bolts 22, and the limiting nuts 23 enables rapid installation and removal of the upper and lower protective covers 5. During routine inspection, maintenance, or replacement of the anchor head, no complicated tools or operations are required; simply unscrewing the limiting nuts 23 and the second bolts 22 is sufficient to open the upper protective cover 17, greatly improving the convenience of maintenance and reducing the difficulty and cost of maintenance work.

[0036] Working principle: During installation, the rectangular plate 2 is first fixed to the top of the anchor plate 1 using the first bolt 4 to ensure a firm connection. Then, the lower protective cover 5 is fixedly connected to the rectangular plate 2, and the annular plate 6 further enhances the connection strength. The lower inner protective layer 9 is fixed inside the lower protective cover 5 using the fixing post 10, forming a double-layer protective structure for the lower protective cover 5. The sealing strip 13 is installed in the first slot 11 and the second slot 12 to ensure a sealing effect. Then, when installing the upper protective cover 17, the first locking block 20 and the second locking block 21 are respectively connected to the first slot 11 and the second slot 21 of the lower protective cover 5. The groove 12 is precisely aligned, ensuring a tight fit between the upper and lower protective covers 5. Finally, the lower connecting plate 7 and the upper connecting plate 19 are secured with the second bolt 22 and the limiting nut 23, completing the installation of the entire protective device. During use, the sealing structure of the protective device effectively prevents rainwater and moisture from entering, the fireproof and heat-insulating layer 14 can withstand high temperatures and fires, and the guide plate 15 and drainage hole 16 can promptly drain accumulated water, providing comprehensive protection for the bridge cable anchor head. When the anchor head needs to be inspected and maintained, the upper protective cover 17 can be removed simply by unscrewing the second bolt 22 and the limiting nut 23, making the operation simple and quick.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A bridge cable anchor head protection device, comprising an anchor plate (1), characterized in that: A rectangular plate (2) is connected above the anchor plate (1). A first bolt (4) is connected to the rectangular plate (2). A lower protective cover (5) is connected to the rectangular plate (2). An annular plate (6) is connected to the outside of the lower protective cover (5). A lower connecting plate (7) is connected to the top of the lower protective cover (5). A lower inner protective layer (9) is connected inside the lower protective cover (5). A fixing post (10) is connected to the lower inner protective layer (9). A first slot (11) is provided on the lower protective cover (5). A second slot (12) is provided on the lower inner protective layer (9). The first slot (11) and the... A sealing strip (13) is connected to each of the second slots (12). A guide plate (15) is connected inside the lower protective cover (5). An upper protective cover (17) is connected above the lower protective cover (5). An upper inner protective layer (18) is connected inside the upper protective cover (17). An upper connecting plate (19) is connected outside the upper protective cover (17). A first locking block (20) and a second locking block (21) are connected to the upper protective cover (17) and the upper inner protective layer (18), respectively. A second bolt (22) is connected to the upper connecting plate (19). A limit nut (23) is connected to the second bolt (22).

2. A bridge cable anchorage protection device according to claim 1, characterised in that: The rectangular plate (2) is installed on the top of the anchor plate (1). The rectangular plate (2) has a plurality of first threaded holes (3). The rectangular plate (2) and the anchor plate (1) are bolted together by the first bolt (4). The first bolt (4) is threadedly connected to the anchor plate (1) and the rectangular plate (2) respectively.

3. A bridge cable anchorage protection device according to claim 1, characterised in that: The lower protective cover (5) is fixedly connected to the rectangular plate (2), the annular plate (6) is fixedly installed at the bottom of the outer wall of the lower protective cover (5), the bottom of the annular plate (6) is fixedly connected to the rectangular plate (2), and the lower connecting plate (7) is fixedly connected to the top of the outer wall of the lower protective cover (5).

4. A bridge cable anchorage protection device according to claim 1, wherein: One end of the fixing column (10) is circumferentially distributed and fixedly installed on the outer wall of the lower inner protective layer (9), and the other end of the fixing column (10) is fixedly connected to the inner wall of the lower protective cover (5).

5. A bridge cable anchor head protection device according to claim 1, characterized in that: The first card slot (11) and the second card slot (12) are arranged in a ring shape. The sealing strip (13) is movably installed inside the first card slot (11) and the second card slot (12) and is tightly fitted with the first card slot (11) and the second card slot (12).

6. A bridge cable anchorage protection device according to claim 1, characterized in that: Fireproof and heat-insulating layers (14) are fixedly connected inside both the lower protective cover (5) and the upper protective cover (17). The guide plate (15) is installed between the lower protective cover (5) and the lower inner protective layer (9) and is fixedly connected to the rectangular plate (2). One side of the guide plate (15) is fixedly connected to the outer wall of the lower inner protective layer (9). Multiple drainage holes (16) are provided on the outer wall of the lower protective cover (5).

7. A bridge cable anchorage protection device according to claim 1, wherein: The upper protective cover (17) is fixedly connected to the upper connecting plate (19), and the fixing post (10) is fixedly connected between the upper protective cover (17) and the upper inner protective layer (18). The top end of the upper inner protective layer (18) is fixedly connected to the upper protective cover (17). The first locking block (20) is fixedly connected to the bottom end of the upper protective cover (17), and the second locking block (21) is fixedly connected to the bottom end of the upper inner protective layer (18). The first locking block (20) and the second locking block (21) are arranged in a ring and are the same shape and size as the first slot (11) and the second slot (12).

8. A bridge cable anchorage protection device according to claim 1, characterized in that: Both the lower connecting plate (7) and the upper connecting plate (19) are provided with multiple second threaded holes (8). The second bolt (22) is threadedly connected to the lower connecting plate (7) and the upper connecting plate (19) respectively. The limiting nut (23) is threadedly connected to the second bolt (22).

Images