Anti-rotation stay cable protective sleeve connecting structure

Abstract

The utility model discloses an anti-rotation stay cable protective sleeve connecting structure which comprises a connecting sleeve, threads are machined in one end and the other end of the connecting sleeve, protective sleeves are arranged at one end and the other end of the connecting sleeve, threads are machined on the outer walls of one ends of the two protective sleeves, the two protective sleeves are connected with the connecting sleeve in a threaded mode, and the connecting sleeve is connected with the connecting sleeve in a threaded mode. The two protective sleeves are connected with first ring bodies, the two first ring bodies are provided with anti-rotation grooves, one end and the other end of the connecting sleeve are connected with frame bodies, the two frame bodies are provided with block bodies, and the two block bodies are inserted into the corresponding anti-rotation grooves respectively. After the two protective sleeves are in threaded connection with the connecting sleeve, the block body can be inserted into the anti-rotation groove and the frame body, relative rotation between the stay cable protective sleeves can be effectively limited, stability of the connecting structure is improved, various problems caused by rotation of the protective sleeves are reduced, and normal use of the stay cable and safety of a bridge structure are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge engineering, and in particular to a cable-stayed bridge sheath connection structure that prevents rotation. Background Technology

[0002] In cable-stayed bridges and other structural engineering projects, cable-stayed cable sheaths play a crucial role in protecting the cables and preventing external corrosion. However, existing cable sheath connection structures have significant shortcomings. Common connection methods are mostly simple sleeve or bolt connections. During long-term use, under the influence of external forces such as wind and vehicle vibration, the connection points of the sheaths are prone to relative rotation. Once the sheaths rotate, it not only affects their protective effect on the cables but may also lead to seal failure at the sheath joints, allowing rainwater and corrosive gases to enter, accelerating the aging and damage of the cables, and ultimately affecting the safety and service life of the bridge structure. Therefore, there is an urgent need to design a cable-stayed cable sheath connection structure that can effectively prevent rotation. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a non-rotational cable sheath connection structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A connection structure for an anti-rotation cable-stayed bridge sheath includes a connecting sleeve, with threads machined inside one and the other ends of the connecting sleeve. A sheath is provided at one and the other ends of the connecting sleeve, with threads machined on the outer walls of one end of each of the two sheaths. The two sheaths are threadedly connected to the connecting sleeve. A first ring is connected to each of the two sheaths, and an anti-rotation groove is formed at each of the two first rings. A frame is connected to one and the other ends of the connecting sleeve, and a block is placed at each of the two frames. The two blocks are respectively inserted into the corresponding anti-rotation grooves.

[0006] Preferably, two of the sheath tubes are fitted with first rubber rings, both of which are in contact with the corresponding first ring body and both of which are in contact with the connecting sleeve.

[0007] Preferably, a second ring is connected inside the connecting sleeve, and a second rubber ring is placed at one end and the other end of the second ring, with the two second rubber rings respectively contacting the corresponding sheath tube.

[0008] Preferably, both blocks are L-shaped.

[0009] Preferably, bolts are passed through both of the frame sections, and the two bolts are respectively movably connected to the corresponding blocks. Nuts are threaded onto both bolts, and the heads of the two nuts and the two bolts are respectively in contact with one end and the other end of the corresponding frame section.

[0010] Preferably, the heads of the two bolts are hexagonal.

[0011] Preferably, the two nuts are hexagonal.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. Through the cooperation between the connecting sleeve, sheath tube, first ring body, frame body, bolt, anti-rotation groove, block body and nut, when the two sheath tubes are threadedly connected to the connecting sleeve, the block body can be inserted into the anti-rotation groove and frame body, which can effectively limit the relative rotation between the cable sheath tubes, improve the stability of the connection structure, reduce various problems caused by the rotation of the sheath tubes, and ensure the normal use of the cable and the safety of the bridge structure;

[0014] 2. Through the cooperation between the first ring body, the first rubber ring, the second rubber ring, and the second ring body, when the connecting sleeve is connected to the sheath tube, the first rubber ring at the first ring body will contact the connecting sleeve, and the sheath tube will contact the second rubber ring, which enhances the sealing of the connection part, prevents rainwater, corrosive gases, etc. from entering, effectively protects the cable stay cable, and extends its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a cable-stayed bridge anti-rotation sheath connection structure proposed in this utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the connecting sleeve, the sheath tube, and the first ring body;

[0017] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure;

[0018] Figure 4 for Figure 3 A schematic diagram of the structure of the second ring, the first rubber ring, and the second rubber ring;

[0019] Figure 5 for Figure 3 A schematic diagram of the structure of the first ring body, frame body and bolts.

[0020] In the diagram: 1. Connecting sleeve; 2. Protective sleeve; 3. First ring; 4. Frame; 5. Bolt; 6. Anti-rotation groove; 7. Block; 8. Nut; 9. Second ring; 10. First rubber ring; 11. Second rubber ring. Detailed Implementation

[0021] 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.

[0022] Example 1, referring to Figures 1 to 5 A cable-stayed bridge anti-rotation sheath connection structure includes a connecting sleeve 1. Both ends of the connecting sleeve 1 are internally threaded. Both ends of the connecting sleeve 1 are provided with sheath tubes 2. The outer walls of both sheath tubes 2 are threaded at one end and are threaded to the connecting sleeve 1. Each sheath tube 2 is connected to a first ring body 3, and each first ring body 3 has an anti-rotation groove 6. Both ends of the connecting sleeve 1 are connected to a frame body 4. Each frame body 4 has a block 7 placed therein, and the two blocks 7 are inserted into their respective anti-rotation grooves 6. The blocks 7 are inserted into the anti-rotation grooves 6 of the first ring body 3 and the frame body 4 of the connecting sleeve 1. After placement, bolts 5 and nuts 8 are used for fixing. First, a wrench is used to pass the bolts 5 through the frame body 4 and the blocks 7. Then, the nuts 8 are screwed on and gradually tightened until the heads of the two nuts 8 and the two bolts 5 are firmly pressed against one end and the other end of the corresponding frame body 4, thus firmly fixing the blocks 7 to the frame body 4.

[0023] In this embodiment, a first rubber ring 10 is fitted onto each of the two sheath tubes 2. The first rubber ring 10 can be made of a rubber material with good aging resistance and weather resistance, such as EPDM rubber. It is in close contact with the corresponding first ring body 3 and connecting sleeve 1, providing a double sealing effect. On the one hand, it prevents external rainwater, dust, corrosive gases, etc. from entering the connection part and eroding the cable; on the other hand, it enhances the friction between the sheath tube 2 and the connecting sleeve 1, further preventing the sheath tube 2 from rotating. Both first rubber rings 10 are in contact with the corresponding first ring body 3, and both first rubber rings 10 are in contact with the connecting sleeve 1. The connecting sleeve 1 is connected to the second ring body 9. The second rubber rings 11 are placed at one end and the other end of the second ring body 9. The two second rubber rings 11 are in contact with the corresponding sheath tube 2. The second rubber rings 11 have the same function as the first rubber rings 10. Both blocks 7 are L-shaped, which can be easily inserted into the corresponding frame body 4 and also into the corresponding anti-rotation groove 6. Both frames 4 are penetrated by bolts 5. The two bolts 5 are movably penetrated into the corresponding blocks 7. Both bolts 5 are threaded with nuts 8. The heads of the two nuts 8 and the two bolts 5 are in contact with one end and the other end of the corresponding frame body 4, respectively. The heads of the two bolts 5 are hexagonal and the two nuts 8 are hexagonal. This design makes it easy to tighten and loosen using tools such as wrenches, which improves the convenience of installation and maintenance. During the tightening process, the hexagonal head and nut 8 provide a larger torque transmission area, ensuring that the bolt 5 and nut 8 can fit tightly together and prevent loosening under external forces such as vibration.

[0024] The working principle of this embodiment is as follows: During installation, the first rubber ring 10 is first placed on the outer surface of the corresponding sheath tube 2 and contacts the first ring body 3. The second rubber ring 11 is placed inside the connecting sleeve 1 and contacts one or the other end of the second ring body 9. After contact, the two sheath tubes 2 are screwed into the two ends of the connecting sleeve 1 through external threads to complete the initial connection. Next, the block 7 is inserted into the anti-rotation groove 6 of the first ring body 3 and the frame 4. After placement, the bolt 5 and nut 8 are engaged to fix the block 7 in the corresponding frame 4. This effectively restricts the relative rotation between the sheath tube 2 and the connecting sleeve 1, while the first rubber ring 10 and the second rubber ring 11 ensure the sealing of the connection. During use, even if subjected to external force, the sheath tube 2 will not rotate relative to the cable due to the existence of the anti-rotation structure, thereby ensuring the stability of the cable sheath tube connection structure and the protection of the cable.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A connection structure of a turn-preventing stay cover pipe, comprising a connection cover (1), characterized in that, The connecting sleeve (1) has threads inside one end and the other end. The connecting sleeve (1) has a sheath tube (2) at one end and the other end. The outer wall of one end of the two sheath tubes (2) is threaded. The two sheath tubes (2) are threaded to the connecting sleeve (1). The two sheath tubes (2) are connected to a first ring body (3). The two first ring bodies (3) are provided with anti-rotation grooves (6). The connecting sleeve (1) has a frame body (4) at one end and the other end. The two frame bodies (4) are each placed with a block (7). The two blocks (7) are respectively inserted into the corresponding anti-rotation grooves (6).

2. A rotation-preventing stay cable jacket tube connection structure according to claim 1, characterized in that Two sheath tubes (2) are fitted with first rubber rings (10), both of which are in contact with the corresponding first ring body (3) and both of which are in contact with the connecting sleeve (1).

3. A rotation-preventing stay cable jacket tube connection structure according to claim 1, characterized in that The connecting sleeve (1) is connected to a second ring (9), and a second rubber ring (11) is placed at one end and the other end of the second ring (9). The two second rubber rings (11) are respectively in contact with the corresponding sheath tube (2).

4. A rotation-preventing stay cable jacket tube connection structure according to claim 1, characterized in that Both of the blocks (7) are L-shaped.

5. A rotation-preventing stay cable jacket tube connection structure according to claim 1, characterized in that Bolts (5) are inserted through both of the two frames (4), and the two bolts (5) are respectively inserted through the corresponding blocks (7). Nuts (8) are threadedly connected to both bolts (5), and the heads of the two nuts (8) and the two bolts (5) are respectively in contact with one end and the other end of the corresponding frame (4).

6. A torsion-proof stay cable jacket tube connection structure according to claim 5, characterized in that The heads of the two bolts (5) are hexagonal.

7. A torsion-proof stay cable jacket tube connection structure according to claim 5, characterized in that The two nuts (8) are hexagonal.

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