Measurement optical fiber welding dustproof device for drilling and blasting method tunnel construction period

Abstract

The utility model discloses a drilling and blasting method tunnel construction period measurement fiber welding dustproof device comprising a box body, two sides of the box body are provided with side plates, a top plate and a front side cover plate are arranged above the box body and between the two side plates, and the top plate is hinged with the front side cover plate; the thin groove is formed along one side plate and extends to the other side plate through the top plate to form an inverted U shape; a cover plate used for sealing the thin groove is arranged on the section, located on the top plate, of the thin groove. Sealing pieces are arranged on the edges of the two side plates on the two sides of the thin groove, each sealing piece comprises two clamping blocks for clamping the corresponding side plate, and sealing strips are arranged at the ends, close to the thin groove, of the two clamping blocks; the two operation holes are formed in the bottoms of the two side plates respectively and connected with silica gel gloves in a sealed mode, and the two silica gel gloves are arranged in the box body; the optical fiber fusion splicer fixing clamping groove is formed in the inner side of the bottom plate of the box body; the problems that the existing optical fiber welding construction environment is poor, the optical fiber loss after welding is easily increased, and the optical fiber communication quality is influenced are solved.

Description

[Technical Field]

[0001] This utility model belongs to the field of optical fiber fusion splicing technology in drill-and-blast tunnel engineering, specifically relating to a dustproof device for measuring optical fiber fusion splicing during the construction period of drill-and-blast tunnels. [Background Technology]

[0002] As an emerging technology, optical fiber communication technology has distinguished itself from traditional optical communication and has been widely applied in various fields. Distributed optical fiber sensing technology, with its advantages of high-density data points, real-time monitoring, sensitive response, and strong stability and durability, has been widely used in long-term tunnel performance monitoring in recent years. Due to the large number of devices used, the splicing of pigtails to the trunk fiber and between trunk fibers has become an important part of tunnel optical fiber monitoring network maintenance. Optical fiber splicing is a process of connecting two optical fibers end-to-end, aiming to link the two fibers together as losslessly as possible, ensuring that light passing through the fiber is not scattered or reflected back by the splice. Simultaneously, the intensity of the splice and its surrounding area should be as consistent as possible with the intact fiber.

[0003] In related technologies, the success rate of fiber optic splicing in tunnel construction environments is low, and the quality of fiber optic communication after splicing is poor. Due to the complex environment of tunnel construction, fiber optic sensors are easily damaged or broken due to human factors after installation, requiring timely fiber optic splicing to maintain the continuity and smooth flow of tunnel stress and strain monitoring signals. In related technologies, the working environment at tunnel construction sites is confined and poorly ventilated, generating a large amount of dust that is difficult to completely eliminate in a short time. Splicing operations are usually carried out simultaneously with tunnel construction. During splicing, the dust level in the working environment is too high, the cleanliness of the fiber optic cable is insufficient, and the lighting and stability of the working environment are inadequate. Performing fiber optic splicing under such conditions easily leads to increased fiber loss after splicing, affecting the quality of fiber optic communication, creating potential safety hazards, resulting in a low success rate of fiber optic splicing, an increased probability of re-splicing, which in turn increases the difficulty and efficiency of fiber optic network maintenance, and may even affect normal production progress, causing economic losses. [Utility Model Content]

[0004] The purpose of this invention is to provide a dustproof device for measuring optical fiber fusion splicing during the construction of tunnels using the drill-and-blast method, in order to solve the problem that the existing optical fiber fusion splicing construction environment is poor, which easily leads to increased optical fiber loss after splicing and affects the quality of optical fiber communication.

[0005] This utility model adopts the following technical solution: a dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method, comprising:

[0006] A box-shaped structure with side panels on both sides. A top plate and a front cover plate are located on the top of the box between the two side panels. The top plate and the front cover plate are hinged together.

[0007] A narrow groove is formed along one of the side plates and extends through the top plate to the other side plate in an inverted U-shape; a cover plate for sealing the groove is provided at the section of the groove located on the top plate; a sealing element is provided at the edge of both side plates on both sides of the groove, the sealing element includes two clamping blocks that clamp the side plates, and a sealing strip is provided at the end of the two clamping blocks near the groove.

[0008] Two operating holes are located at the bottom of the two side panels, and both are sealed with silicone gloves, which are placed inside the box.

[0009] A fiber optic fusion splicer fixing slot is located on the inside of the bottom plate of the enclosure;

[0010] The front cover is designed to facilitate the insertion of the fiber optic fusion splicer and its installation into the fusion splicer's mounting slot after opening. The narrow slot is used to insert two broken optical fibers into the housing and connect them using the fiber optic fusion splicer with silicone gloves.

[0011] Furthermore, the overlapping sides of the sealing strips are beveled.

[0012] Furthermore, the front cover is angled and hinged to the top plate.

[0013] Furthermore, rubber sealing gaskets are embedded on the inner edges of both the front cover and the cover of the groove.

[0014] Furthermore, a lighting assembly and a power switch are installed on the rear side of the interior of the enclosure.

[0015] Furthermore, both sealing strips have through holes at their bottoms.

[0016] Furthermore, insulation layers are installed inside the side walls and top panel of the enclosure, and a heating pad is installed on the bottom surface of the enclosure.

[0017] The beneficial effects of this utility model are as follows: When using the fiber optic fusion splicing dustproof operation box of this utility model for fiber optic fusion splicing, two stripped fiber optic sections are placed into the dustproof operation box through the top plate slot, the slot cover is closed, and the operator wears silicone gloves through the operation port to perform fiber optic fusion splicing operations inside the dustproof operation box. The sealed space of the box ensures a clean environment for the fusion splicing operation and provides sufficient lighting. This allows for normal fusion splicing operations in dusty and dimly lit tunnel environments, ensuring the fiber optic fusion splicer does not come into contact with the external environment throughout the process, effectively reducing the interference of the tunnel construction environment on the quality and efficiency of fiber optic fusion splicing. It improves the quality of fusion splicing in fiber optic tunnel environments, providing dust and water protection, stable lighting, and other protective functions for the fiber optic fusion splicing environment. Furthermore, it occupies little space, is lightweight, and is easy for fusion splicing operators to carry. [Attached Image Description]

[0018] Figure 1This is a three-dimensional structural schematic diagram of a dustproof device for measuring optical fiber splicing during tunnel construction using the drill-and-blast method, according to this utility model.

[0019] Figure 2 for Figure 1 Side view;

[0020] Figure 3 This is a sectional view of AA.

[0021] Figure 4 This is a cross-sectional view of BB.

[0022] In the diagram: 111. Box side wall, 112. Top plate, 113. Box bottom, 114. Operating hole, 115. Groove, 116. Rubber sealing gasket, 12. Front cover plate, 13. Silicone glove, 14. Cover plate, 15. Fiber optic fusion splicer fixing slot, 16. Lighting assembly, 17. Power switch, 21. Sealing element, 211. Clamping block, 212. Sealing strip, 23. Through hole.

Detailed Implementation Methods

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] This utility model provides a dustproof device for measuring fiber optic splicing during tunnel construction using the drill-and-blast method, such as... Figures 1 to 3 As shown, it includes:

[0025] The box is a hollow box structure with side panels 111 on both sides. A top plate 112 and a front cover plate 12 are provided on the top of the box and between the two side panels 111. The top plate 112 and the front cover plate 12 are hinged together. The box body and the front cover plate 12 are mainly composed of transparent acrylic sheets. The fiber optic splicing inside the box can be easily observed through the top of the box body and the front cover plate 12.

[0026] A narrow groove 115 is formed along one of the side plates 111 and extends through the top plate 112 to the other side plate 111 in an inverted U-shape; a cover plate 14 for sealing the groove 115 is provided at a section of the groove 115 located on the top plate 112. Figure 4 As shown, sealing elements 21 are provided at the edges of the two side plates 111 on both sides of the groove 115. The sealing elements 21 include two clamping blocks 211 that clamp the side plates 111, and a sealing strip 212 is provided at one end of the two clamping blocks 211 near the groove 115.

[0027] The sealing strip 212 is made of flexible rubber material. A portion of the sealing strip 212 is embedded between the two clamping blocks 211, while the other portion is exposed. The exposed portions of the sealing strip 212 overlap each other to improve the sealing effect at the groove 115. The two clamping blocks 211 are tightly clamped to the sidewall of one side of the groove 115 by bolts for a sealing connection. The sealing strip 212 is elongated along the length of the groove 115.

[0028] It also includes two operating holes 114, which are respectively located at the bottom of the two side plates 111, and each is sealed with a silicone glove 13, which is placed inside the box.

[0029] A fiber optic fusion splicer fixing slot 15 is provided on the inner side of the bottom plate of the housing;

[0030] The front cover 12 is used to facilitate the insertion of the fiber optic fusion splicer after opening and to install it into the fiber optic fusion splicer fixing slot 15; the narrow slot 115 is used to insert two broken optical fibers into the inside of the housing and connect them using the fiber optic fusion splicer with silicone gloves 13.

[0031] When using the dustproof fiber optic splicing operation box of this utility model for fiber optic splicing, before splicing, first place the fiber optic splicer into the fixing slot inside the box through the opening of the dustproof operation box outside the tunnel and fix it. Cover the front cover plate. After entering the tunnel, put the two stripped fiber optic sections into the dustproof operation box through the top plate groove. Cover the groove with the cover plate. The operator puts on the silicone gloves at the operation hole and performs the fiber optic splicing operation inside the dustproof operation box.

[0032] In some embodiments, the overlapping sides of the sealing strips 212 are beveled to improve their fit and sealing performance.

[0033] In some embodiments, the front cover 12 is inclined and hinged to the top plate 112. After the front cover 12 is opened, the fiber optic fusion splicer and the tools used for fiber optic fusion splicing can be easily placed inside.

[0034] In some embodiments, rubber sealing gaskets 116 are embedded in the inner edges of both the front cover plate 12 and the cover plate 14 of the groove. After the front cover plate 12 and the cover plate 14 of the groove are closed, they are sealed by the sealing gaskets, and the cover plates are tightened by the latches, thereby achieving the sealing of the rubber sealing gaskets 116.

[0035] In some embodiments, a lighting component 16 and a power switch 17 are provided.

[0036] In some embodiments, each of the two sealing strips 212 has a through hole 23 at its bottom. The fiber optic cable with fusion splice can be inserted into the housing through the through hole 23 for fusion splicing.

[0037] In some embodiments, the side walls 111 and the top plate 112 of the enclosure are provided with insulation layers, and the bottom surface 113 of the enclosure is provided with a heating pad to keep warm in cold environments.

[0038] The method of using the dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method of this utility model is as follows:

[0039] 1. Before entering the tunnel, open the front cover 12 and place the fiber optic fusion splicer and the tools used for fiber optic fusion splicing inside the box. Fix the fiber optic fusion splicer in the fiber optic fusion splicer fixing slot 15 and close the front cover 12.

[0040] 2. Upon arrival at the work site, find a relatively stable platform and place the container on it.

[0041] 3. Remove all protective coatings, sheaths, tubing, reinforcements, etc. from the two optical fiber ends that need to be spliced, leaving the bare optical fiber exposed.

[0042] 4. Insert the two bare optical fibers into the box through the slots 115 or through holes 23 on both sides, and bring them to the vicinity of the silicone glove 13 to facilitate the optical fiber splicing operation.

[0043] 5. Put on silicone gloves 13 and enter the box through the operation port 114, turn on the power supply 17 and the lighting component 16 to provide lighting for the dustproof box, and then perform the fiber optic splicing operation.

[0044] 6. After the fiber optic splicing is completed, the fiber optic cable is tested. Once the fiber optic splicing standard is met, the lighting component 16 switch is turned off, the power supply 17 switch is turned off, the cover plate 14 of the slot is opened, and the spliced ​​fiber optic cable is taken out from the top slot.

[0045] When using this dustproof fiber optic splicing operation box, two stripped fiber segments are placed into the dustproof operation box through the top plate slot. The slot cover is then closed, and the operator, wearing silicone gloves through the operating port, performs the fiber optic splicing operation inside the dustproof operation box. The sealed space of the box ensures a clean environment for the splicing operation and provides sufficient lighting. This allows for normal splicing operations even in dusty and dimly lit tunnel environments. Throughout the process, the fiber optic splicer remains isolated from the external environment, effectively reducing the interference of the tunnel construction environment on the quality and efficiency of fiber optic splicing. It improves the quality of splicing in fiber optic tunnel environments, providing dust and water protection, stable lighting, and other protective functions for the fiber optic splicing environment. Furthermore, it occupies little space, is lightweight, and easy for splicing personnel to carry.

Claims

1. A dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method, characterized in that, include: A box body with a hollow box structure, the two sides of which are box side walls (111), a top plate (112) and a front cover plate (12) are provided on the top of the box body and between the two box side walls (111), the top plate (112) and the front cover plate (12) are hinged; A narrow groove (115) is formed along one of the box sidewalls (111) and extends through the top plate (112) to the other box sidewall (111) to form an inverted U-shape; a cover plate (14) for sealing the narrow groove (115) is provided at the section of the narrow groove (115) located at the top plate (112); a sealing element (21) is provided at the edge of each of the two box sidewalls (111) on both sides of the narrow groove (115), the sealing element (21) including two clamping blocks (211) clamping the box sidewall (111), and a sealing strip (212) is provided at one end of the two clamping blocks (211) near the narrow groove (115). Two operating holes (114) are respectively located at the bottom of the two side walls (111) of the box, and both are sealed with silicone gloves (13), which are placed inside the box. A fiber optic fusion splicer fixing slot (15) is provided on the inner side of the bottom plate of the housing; The front cover (12) is used to facilitate the insertion of the fiber optic fusion splicer after opening and to install it into the fiber optic fusion splicer fixing slot (15); the narrow slot (115) is used to insert two broken optical fibers into the box and connect them using a silicone glove (13) through the fiber optic fusion splicer.

2. The dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method as described in claim 1, characterized in that, The overlapping sides of the sealing strips (212) are beveled.

3. A dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method, as described in claim 1 or 2, characterized in that... The front cover plate (12) is inclined and hinged to the top plate (112).

4. The dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method as described in claim 3, characterized in that, The inner edges of the front cover plate (12) and the cover plate (14) of the groove are both fitted with rubber sealing gaskets (116).

5. The dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method as described in claim 3, characterized in that, The rear side of the interior of the enclosure is equipped with a lighting assembly (16) and a power switch (17).

6. The dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method as described in claim 3, characterized in that, Both of the sealing strips (212) have through holes (23) at their bottoms.

7. The dustproof device for fiber optic splicing during tunnel construction using the drill-and-blast method as described in claim 3, characterized in that, The interior of the side wall (111) and the top plate (112) of the box are provided with a heat insulation layer, and a heating pad is provided at the bottom surface (113) of the box.

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