Support convenient for laying temperature sensing optical fiber in chute type tunnel
By designing a temperature-sensitive fiber bracket for chute-type tunnels, the problem of easy damage and fall off of optical fibers in the laying of temperature-sensitive fibers in the subway tunnel is solved, and higher construction efficiency and driving safety are achieved.
Patent Information
- Application Number
- CN202421809914.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In the prior art, the thermally sensitive fiber laying method in the subway tunnel is easy to knot and cross with other cables, resulting in damage or breakage. The cable ties fixing method is difficult to ensure the stability of the fiber under high wind pressure environments, and there is a risk of falling off.
A bracket is designed to facilitate the laying of temperature-sensitive fibers in the chute tunnel, including the bracket body, mounting frame, temperature-sensitive fiber locking frame and removable fixing card. The bracket is fixed in the tunnel chute through T-screws, and the temperature-sensitive fiber is locked in the locking groove to avoid falling off.
The bracket can better fix the temperature-sensitive fiber, avoid the risk of falling off caused by tunnel wind pressure, improve construction efficiency and driving safety, and reduce the possibility of fiber damage.
Smart Images
Figure CN222912920U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of temperature-sensitive optical fiber laying, in particular to a bracket for facilitating the laying of temperature-sensitive optical fibers in a chute-type tunnel. Background Art
[0002] In the past, the laying method of temperature-sensitive optical fibers in existing subway tunnels was mostly to lay them on the uppermost side of the interval brackets of the power and lighting specialties, and the temperature-sensitive optical fibers were fixed by tying them with cable ties. However, the efficiency of installing the power and lighting support brackets is low. There are various other cables placed on the uppermost side of the power and lighting brackets. The temperature-sensitive optical fibers are prone to knotting and crossing with other cables, which is likely to cause damage or even breakage of the optical fibers. When tying the temperature-sensitive optical fibers with cable ties, during tunnel operation, the tunnel air pressure can even reach 600 Pa. In a high-air-pressure environment, the cable tie tying method also poses a risk of the temperature-sensitive optical fibers falling off. Moreover, the power and lighting brackets are horizontal to the rail surface. If the fallen temperature-sensitive optical fibers fall into the track area, it will cause an intrusion. Content of the Utility Model
[0003] The purpose of the utility model is to solve the problems existing in the prior art, and provide a bracket for facilitating the laying of temperature-sensitive optical fibers in a chute-type tunnel. The bracket is laid separately and obliquely hung in the tunnel chute, which can better ensure the driving safety and construction efficiency.
[0004] In order to achieve the above purpose, the utility model is realized through the following technical solutions:
[0005] A bracket for facilitating the laying of temperature-sensitive optical fibers in a chute-type tunnel, including a bracket main body. One end of the bracket main body is provided with an installation frame, and the other end is provided with a temperature-sensitive optical fiber locking frame. One side of the temperature-sensitive optical fiber locking frame is provided with a detachable fixing clip. The side of the fixing clip close to the temperature-sensitive optical fiber locking frame is provided with a first groove. The temperature-sensitive optical fiber locking frame is provided with a second groove corresponding to the first groove. The second groove and the first groove enclose a locking groove adapted to the temperature-sensitive optical fiber. The installation frame is provided with a T-shaped screw, and the installation frame is fixed in the tunnel chute through the T-shaped screw.
[0006] Preferably, the bracket main body, the installation frame, and the temperature-sensitive optical fiber locking frame are all plate-shaped, and convex reinforcing ribs are provided on the bracket main body, the installation frame, and the temperature-sensitive optical fiber locking frame.
[0007] Preferably, a plurality of through holes are provided on the bracket main body.
[0008] Preferably, the installation frame is provided with installation holes adapted to the T-shaped screws.
[0009] Preferably, the included angles between the installation frame, the temperature-sensitive optical fiber locking frame and the bracket main body are all acute angles.
[0010] Preferably, one end of the fixing card is connected to the temperature-sensing optical fiber locking bracket through a locking screw, and the other end is provided with an inclined plate.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] The present utility model is easy to install and has high strength. The temperature-sensing optical fiber is arranged in the locking groove between the temperature-sensing optical fiber locking bracket and the fixing card, which can improve the efficiency during the construction process. It is obliquely hung on the tunnel chute through the T-shaped screw, and the downward wind pressure generated during the driving process cannot cause the temperature-sensing optical fiber to fall off. Laying the temperature-sensing optical fiber with a single bracket is not easy to cause damage to the optical fiber, greatly saving labor, improving the construction efficiency, further protecting the construction finished optical fiber, and more effectively ensuring the driving safety in the tunnel. It is applicable to the laying of temperature-sensing optical fibers in the tunnel parts of subway construction and railway construction. Description of the Drawings
[0013] Figure 1 is the structural schematic diagram of the present utility model;
[0014] Figure 2 is the structural schematic diagram of the bracket main body;
[0015] Figure 3 is the structural schematic diagram of the fixing card.
[0016] Reference numerals in the drawings: 1, bracket main body; 2, mounting bracket; 3, temperature-sensing optical fiber locking bracket; 31, second groove; 4, fixing card; 41, first groove; 42, inclined plate; 5, locking groove; 6, T-shaped screw; 7, tunnel chute; 8, locking screw. Detailed Embodiments
[0017] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by this application.
[0018] Embodiment: As shown in the attached Figures 1-3 figure, the present utility model relates to a bracket for facilitating the laying of temperature-sensing optical fibers in a chute-type tunnel, including a bracket main body 1. One end of the bracket main body 1 is provided with a mounting bracket 2, and the other end is provided with a temperature-sensing optical fiber locking bracket 3. Preferably, the included angles between the mounting bracket 2, the temperature-sensing optical fiber locking bracket 3 and the bracket main body 1 are all acute angles, and the bracket main body 1, the mounting bracket 2, and the temperature-sensing optical fiber locking bracket 3 form a Z-shaped bracket structure.
[0019] Preferably, for the convenience of manufacturing the present utility model, the bracket main body 1, the mounting bracket 2, and the temperature-sensitive optical fiber locking bracket 3 are all plate-shaped, and the bracket main body 1, the mounting bracket 2, and the temperature-sensitive optical fiber locking bracket 3 adopt an integrated structure. The Z-shaped bracket structure can be formed by bending a sheet. Raised reinforcing ribs are provided on the bracket main body 1, the mounting bracket 2, and the temperature-sensitive optical fiber locking bracket 3, and the raised reinforcing ribs are arranged on both sides of the plate surface of the Z-shaped bracket structure, which can improve the structural strength of the Z-shaped bracket structure.
[0020] Preferably, a plurality of through holes are provided on the bracket main body 1, which can reduce the total weight of the present utility model and reduce the use of materials.
[0021] One side of the temperature-sensitive optical fiber locking bracket 3 is provided with a detachable fixing clip 4. Preferably, for the convenience of disassembling and adjusting the fixing clip, one end of the fixing clip 4 is connected to the temperature-sensitive optical fiber locking bracket 3 through a locking screw 8, and the other end is provided with an inclined plate 42. The locking screw 8 can be a round head screw.
[0022] A first groove 41 is provided on the side of the fixing clip 4 close to the temperature-sensitive optical fiber locking bracket 3. A second groove 31 corresponding to the first groove 41 is provided on the temperature-sensitive optical fiber locking bracket 3. The second groove 31 and the first groove 41 enclose a locking groove 5 adapted to the temperature-sensitive optical fiber. The temperature-sensitive optical fiber is locked in the locking groove 5. An M12×40 specification T-shaped chute bolt is used for the T-shaped screw 6 on the mounting bracket 2, and a mounting hole adapted to the T-shaped screw 6 is provided on the mounting bracket 2. The mounting bracket 2 is fixed in a tunnel chute 7 on the tunnel wall through the T-shaped screw 6.
[0023] When the present utility model is in use, first connect the T-shaped screw 6 with the tunnel chute 7, pass the T-shaped screw 6 through the mounting hole on the mounting bracket 2, and fix it with a nut. Then fix the fixing clip 4 on the temperature-sensitive optical fiber locking bracket 3, and pass the temperature-sensitive optical fiber through the locking groove 5 between the fixing clip 4 and the temperature-sensitive optical fiber locking bracket 3 for fixation.
[0024] When the temperature-sensitive optical fiber is laid, the present utility model can better fix the temperature-sensitive optical fiber, avoid the temperature-sensitive optical fiber falling off the hook due to the tunnel wind pressure. At the same time, the raised reinforcing ribs on the bracket structure can also ensure the overall strength of the bracket. And installing the present utility model only requires inserting the T-shaped screw into the tunnel chute, which greatly improves the efficiency, saves labor, and the high strength greatly improves the safety factor of tunnel driving.
Claims
1. A bracket for facilitating the laying of temperature-sensing optical fibers in a chute-type tunnel, characterized in that: The invention comprises a bracket body (1), wherein one end of the bracket body (1) is provided with a mounting frame (2), and the other end is provided with a temperature-sensitive optical fiber locking frame (3), a detachable fixing card (4) is provided on one side of the temperature-sensitive optical fiber locking frame (3), a first groove (41) is provided on the fixing card (4) on a side close to the temperature-sensitive optical fiber locking frame (3), a second groove (31) corresponding to the first groove (41) is provided on the temperature-sensitive optical fiber locking frame (3), the second groove (31) and the first groove (41) enclose a locking groove (5) adapted to the temperature-sensitive optical fiber, and the mounting frame (2) is provided with a T-screw (6), and the mounting frame (2) is fixed in a tunnel slide groove (7) by the T-screw (6).
2. A bracket for facilitating the laying of temperature-sensing optical fibers in a slide-type tunnel according to claim 1, characterized in that: The support body (1), the mounting frame (2) and the temperature-sensitive optical fiber locking frame (3) are all plate-shaped, and protruding reinforcing ribs are provided on the support body (1), the mounting frame (2) and the temperature-sensitive optical fiber locking frame (3).
3. The bracket for facilitating the laying of temperature-sensing optical fiber in a slide-type tunnel according to claim 1, characterized in that: The bracket body (1) is provided with a plurality of through holes.
4. A bracket for facilitating the laying of temperature-sensing optical fibers in a slide-type tunnel according to claim 1, characterized in that: The mounting frame (2) is provided with mounting holes adapted to the T-shaped screws (6).
5. The bracket for facilitating the laying of temperature-sensing optical fiber in a slide-type tunnel according to claim 1, characterized in that: The included angles between the mounting frame (2), the temperature-sensitive optical fiber locking frame (3) and the bracket body (1) are all acute angles.
6. The bracket for facilitating the laying of temperature-sensing optical fibers in a slide-type tunnel according to claim 1, characterized in that: One end of the fixing card (4) is connected to the temperature-sensitive optical fiber locking frame (3) via a locking screw (8), and the other end is provided with an inclined plate (42).