Optical fiber fixing device for drainage pipeline

Abstract

The utility model discloses an optical fiber fixing device for a drainage pipeline. The optical fiber fixing device comprises a track part, a movable part and a fixed part, the track part is of an arc structure, and the outer diameter of the track part is the same as the inner diameter curvature of the drainage pipeline. The rail part comprises a rail center and rail side wings arranged on the two sides of the rail center, a plurality of fixing holes are formed in the rail center, and a plurality of first positioning holes are formed in the rail side wings; the moving part is of a U-shaped structure and comprises a bottom and moving part side wings, second positioning holes are formed in the moving part side wings, the moving part is nested with the rail side wings through the moving part side wings, and the moving part and the rail part are fixed through fasteners; the fixed part is of a buckle type structure, is fixed to the back of the movable part and is used for placing an optical fiber. The device is simple in structure, easy to install, capable of easily adjusting the installation position of the optical fiber, wide in applicable working condition, labor-saving and capable of effectively guaranteeing the accuracy of monitoring data.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber monitoring of drainage pipelines, in particular to an optical fiber fixing device for drainage pipelines. Background Art

[0002] When constructing mixed connections, wrong connections, and groundwater intrusion detection projects in municipal pipe networks, it is necessary to install optical fibers over long distances in drainage pipes to collect a large amount of water quality data over a long period of time for analyzing the external water intrusion in the pipe network. Since the water volume, water level, sediment conditions, and types of external water intrusion in each section of the drainage pipe are different, it is necessary to select a suitable installation location when installing the optical fiber, and adjust the optical fiber installation location in a timely manner according to the monitoring results to improve the monitoring accuracy.

[0003] In the past, when using optical fiber to monitor water quality data in drainage networks, changes in drainage pipe working conditions were often not taken into account. The optical fiber was usually placed at the bottom or fixed, which resulted in the failure to collect data at low water levels, and the failure to collect water volume changes in the upper layer of the water body due to external water intrusion at high water levels. Even during long-term monitoring, the optical fiber may be covered by sediment in the drainage pipe, resulting in inaccurate monitoring data and large errors. In addition, after the optical fiber is usually fixedly installed, it is very difficult to adjust the position of the optical fiber, and adjusting the position of the optical fiber multiple times at multiple locations will cause structural damage to the drainage pipe. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a movable optical fiber holder for a drainage pipe, which has a simple structure, is easy to install, can easily adjust the optical fiber installation position, is applicable to a wide range of working conditions, saves labor, and can effectively ensure the accuracy of monitoring data.

[0005] In order to achieve the purpose of this utility model, the following scheme is adopted:

[0006] An optical fiber fixing device for a drainage pipe comprises a track portion, a moving portion and a fixing portion;

[0007] The track portion is an arc structure, and the outer diameter of the track portion has the same curvature as the inner diameter of the drainage pipe; the track portion includes a track center and track wings arranged on both sides of the track center, a plurality of fixing holes are opened on the track center, and a plurality of first positioning holes are opened on the track wings;

[0008] The moving part is a U-shaped structure, including a bottom and a moving part side wing, a second positioning hole is opened on the moving part side wing, the moving part is nested with the track side wing through the moving part side wing, and the moving part and the track part are fixed by fasteners;

[0009] The fixing part is a snap-on structure, fixed to the back of the moving part, and used for placing the optical fiber.

[0010] Furthermore, an anti-slip pad is arranged inside the fixing portion.

[0011] Furthermore, the track portion is a quarter circle.

[0012] Furthermore, the fixing part includes an upper plate of a wire holder, an axis column and a lower plate of a wire holder, the upper plate of the wire holder is connected to the lower plate of the wire holder through the axis column, a buckle concave end is provided at the end of the upper plate of the wire holder, and a buckle convex end is provided at one end of the lower plate of the wire holder, and the optical fiber is fixed in the fixing part by the buckle concave end and the buckle convex end.

[0013] Furthermore, a tightness adjustment ring is also arranged in the fixing portion.

[0014] The utility model has the following beneficial effects:

[0015] 1. The optical fiber fixing device of the utility model can realize easy and multiple adjustment of the installation position of the optical fiber in the pipeline, thereby reducing the structural damage to the drainage pipeline.

[0016] 2. The optical fiber fixing device of the utility model can be applied to drainage pipes of various diameters and has a wide application range.

[0017] 3. Through multi-stage installation, the optical fiber fixing device of the utility model can realize the full-scale installation of optical fiber inside the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the rail portion of the optical fiber fixing device for the drainage pipe according to an embodiment of the utility model.

[0019] Figure 2 This is a cross-sectional view of the rail portion of the optical fiber fixing device for a drainage pipe according to an embodiment of the utility model.

[0020] Figure 3 This is the assembly drawing of the fixed part and the moving part.

[0021] Figure 4 A schematic diagram of the fixed part.

[0022] In the figure, the track part 1, the track center 2, the track side wing 3, the first positioning hole 4, the fixing hole 5, the fixing part 6, the moving part 7, the second positioning hole 8, the moving part side wing 9, the anti-slip gasket 10, the shaft column 11, the wire clamp upper plate 12, the buckle concave end 13, the buckle convex end 14, the tension adjustment ring 15, and the wire clamp lower plate 16. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below according to the accompanying drawings and preferred embodiments, and the purpose and effect of the present invention will become more clear. The present invention will be further described in detail below in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] like Figures 1 to 4 As shown, the optical fiber fixing device for the drainage pipe of this embodiment includes three parts: a track portion 1, a movable portion 7 and a fixed portion 6. The track portion 1 is made of polyvinyl chloride and has an arc structure. The outer diameter of the track portion 1 has the same curvature as the inner diameter of the drainage pipe. The track portion 1 includes a track center 2 and track wings 3 arranged on both sides of the track center 2. The track center 2 is provided with a plurality of fixing holes 5 for fixing the track portion 1 in the drainage pipe. The track wings 3 are provided with a plurality of first positioning holes 4. In this embodiment, the track portion 1 is a quarter circle, and a multi-section track connection can be performed according to actual monitoring needs.

[0025] The movable part 7 is a U-shaped structure, and its outer width is equal to the width between the two track wings 3. The movable part 7 includes a bottom plate and a movable part wing 9, and a second positioning hole 8 is opened on the movable part wing 9. When working, the movable part 7 is nested with the track wing 3 through the movable part wing 9, and the movable part 7 can be placed at a suitable position of the track part 1 according to the position where the optical fiber is to be installed, and the movable part 7 is fixed to the track part 1 by passing bolts through the first positioning hole 4 and the second positioning hole 8.

[0026] The fixed part 6 is fixed to the back of the bottom plate of the movable part 7 and is integrally connected to the movable part 7 by fusion welding. The fixed part 6 is a snap-on structure, including a wire clamp upper plate 12, a shaft column 11, a wire clamp lower plate 16, an anti-skid pad 10 and an elastic adjustment ring 15. The wire clamp upper plate 12 is connected to the wire clamp lower plate 16 through the shaft column 11, a snap-on concave end 13 is provided at the end of the wire clamp upper plate 12, and a snap-on convex end 14 is provided at one end of the wire clamp lower plate 16. Through the snap-on concave end 13 and the snap-on convex end 14, the wire clamp upper plate 12 and the anti-skid pad 10 jointly apply pressure to fix the optical fiber in the fixed part 6.

[0027] The optical fiber fixing device for drainage pipes of this embodiment works as follows:

[0028] Determine the inner diameter of the pipe where the optical fiber needs to be installed, select a track portion 1 with a corresponding curvature, drill a hole on the track portion 1, and install one or more sections of the track to the inner wall of the pipe through the fixing hole 5 in the center of the track.

[0029] Determine the water level to be monitored, place the moving part 7 inside the track, move it to the target monitoring position, and connect it with bolts through the first positioning hole 4 and the second positioning hole 8.

[0030] Open the upper plate 12 of the fixing part 6, place the optical fiber on the anti-slip pad 10, press the upper plate 12 of the cable clamp so that the buckle concave end 13 and the buckle convex end 14 are buckled together to complete the fixing of the optical fiber.

[0031] After a period of time, if the optical fiber monitoring position needs to be changed, the bolts connecting the first positioning hole 4 and the second positioning hole 8 are loosened, the fixing part 6 is opened, and the movable part 7 can be placed in the appropriate position of the track part 1 again, and the optical fiber can be rewritten and fixed according to the above method.

[0032] After a long period of engineering monitoring is completed, the fixing part 6 can be easily opened, the track part 1 can be removed, and can be reused.

[0033] Those skilled in the art can understand that the above are only preferred examples of the utility model and are not intended to limit the utility model. Although the utility model is described in detail with reference to the above examples, those skilled in the art can still modify the technical solutions recorded in the above examples or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An optical fiber fixing device for a drainage pipe, It is characterized in that It comprises a track part (1), a moving part (7) and a fixed part (6); The track portion (1) is an arc structure, and the outer diameter of the track portion (1) has the same curvature as the inner diameter of the drainage pipe; the track portion (1) comprises a track center (2) and track side wings (3) arranged on both sides of the track center (2); the track center (2) is provided with a plurality of fixing holes (5), and the track side wings (3) are provided with a plurality of first positioning holes (4); The movable part (7) is a U-shaped structure, comprising a bottom and a movable part side wing (9), the movable part side wing (9) is provided with a second positioning hole (8), the movable part (7) is nested with the track side wing (3) through the movable part side wing (9), and the movable part (7) is fixed to the track part (1) by a fastener; The fixed part (6) is a snap-on structure, fixed on the back of the movable part (7), and used for placing the optical fiber.

2. The optical fiber fixing device for drainage pipe according to claim 1, It is characterized in that An anti-slip pad (10) is arranged inside the fixing portion (6).

3. The optical fiber fixing device for drainage pipe according to claim 1, It is characterized in that The track portion (1) is a quarter circle.

4. The optical fiber fixing device for drainage pipe according to claim 1, It is characterized in that The fixing part (6) comprises an upper plate (12) of a wire holder, an axle column (11) and a lower plate (16) of a wire holder. The upper plate (12) of a wire holder is connected to the lower plate (16) of a wire holder via the axle column (11). A buckle concave end (13) is arranged at the end of the upper plate (12) of the wire holder, and a buckle convex end (14) is arranged at one end of the lower plate (16). The optical fiber is fixed in the fixing part (6) by buckling the buckle concave end (13) with the buckle convex end (14).

5. The optical fiber fixing device for drainage pipe according to claim 1, It is characterized in that A tightness adjustment ring (15) is also provided in the fixing portion (6).

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