Comprehensive cable channel circulating relay type optical cable traction laying method

Abstract

The invention belongs to the technical field of optical cable laying, and provides a comprehensive cable channel circulating relay type optical cable traction laying method, which comprises the following steps of: S1, preparing two pipe penetrating devices with special lengths and two corresponding teams of workers, namely a pipe penetrating device A and a team A, and a pipe penetrating device B and a team B; s2, the cover plate above the channel is uncovered according to the head-to-tail distance of the total length of the pipe penetrating device to form a skylight, and meanwhile, the cover plate is uncovered in the optical cable laying direction circularly according to the distance; and step S3, the A team and the B team are simultaneously provided with the A pipe penetrating device and the B pipe penetrating device, and the A team enables the head end of the A pipe penetrating device to penetrate from the first skylight and pushes the head end towards the optical cable laying direction. Cyclic relay traction is carried out on the optical cable through the specially-made pipe penetrating device so as to realize uninterrupted continuous laying, the process is rigorous, the division of labor is clear, the working time is reasonably utilized, additional power equipment is not needed, physical activities of workers are more convenient, the working efficiency is higher, the construction cost is lower, and idle work is completely eradicated.

Description

Technical Field

[0001] This invention relates to the field of optical cable laying technology, and in particular to a method for laying optical cables using a cyclic relay method in integrated cable ducts. Background Technology

[0002] Current Status of High-Speed ​​Railway Communication Trunk Optical Cable Laying: With the rapid development of China's high-speed railway network, the requirements for transmission capacity, speed, and reliability of communication systems are constantly increasing. As the "nervous system" carrying core services such as train control, dispatching, and passenger services, the construction quality of communication trunk optical cables directly affects the operational safety and efficiency of high-speed railways. Currently, high-speed railway communication trunk optical cables generally adopt the integrated cable duct (on bridges and on the roadbed) laying method, providing a unified, standardized, and protected physical channel for the optical cables.

[0003] The limitations of traditional construction methods lie in the fact that the previous high-speed railway integrated duct optical cable laying mainly adopted two methods: the single-section conduit method and the full-length uncovering method. Among them, the single-section conduit is relatively long, sometimes even reaching 100 meters, so it needs to be coiled on the cable laying frame. The conventional method is to shuttle back and forth along the duct to the end according to its own length, and then pull the optical cable. This method is time-consuming and has low construction efficiency. Moreover, the continuous shuttle over a long distance will increase the probability of the conduit head being obstructed and the degree of wear. The full-length uncovering method is mainly because the space above the optical cable is exposed after the optical cable is laid, which is very susceptible to external force and is subject to damage. The risk of damage is high, and it also has the problem of slow construction speed.

[0004] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a method for laying optical cables using a cyclic relay system in a comprehensive cable duct, in order to solve the problems of slow construction speed and easy damage to optical cables in traditional optical cable laying methods.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a method for laying optical cables using a cyclic relay system in integrated cable ducts, comprising: Step S1: Prepare two specially designed pipe threading tools and two corresponding teams of workers, namely pipe threading tool A and team A, and pipe threading tool B and team B. Step S2: Open the cover plate above the channel to form a skylight according to the first and last spacing of the total length of the tube inserter. At the same time, open the cover plate in the direction of optical cable laying in a cyclical manner according to this spacing. In step S3, teams A and B simultaneously deploy conduit inserter A and conduit inserter B. Team A inserts the head end of conduit inserter A through the first skylight and pushes it in the direction of optical cable laying, then leads the head end of conduit inserter A out through the second skylight. At the same time, team B inserts the head end of conduit inserter B through the second skylight and pushes it in the direction of optical cable laying, then leads the head end of conduit inserter B out through the third skylight. Step S4: Lay out the optical cable and place the optical cable laying frame near the first skylight; Step S5: Laying the optical cable. Team A connects the tail end of conduit A to the optical cable connector. Team B pulls the head end of conduit A to pull the optical cable. After conduit A is completely detached from the cable tray, Team A connects the tail end of conduit B to the optical cable connector. Team B guides the head end of conduit A into the cable tray and pulls conduit B. At the same time, Team A pushes conduit A in the direction of optical cable laying. After conduit B is completely detached from the cable tray, conduit A is fully inserted into the cable tray. Team A connects the tail end of conduit A to the optical cable connector. Team B guides the head end of conduit B into the cable tray and pulls conduit A. At the same time, Team A pushes conduit B in the direction of optical cable laying. This cycle is repeated.

[0007] Preferably, the head ends of both the A-tube inserter and the B-tube inserter are fitted with obstacle-breaking balls and fixed with pull rings; Both tube inserter A and tube inserter B have traction rings fixed to their tail ends.

[0008] Preferably, in step S5, both Team A and Team B pull the ends of the A pipe threader and the B pipe threader using ropes.

[0009] Preferably, the traction end of the rope is alternately hooked to the pull ring at the head end of either pipe threader A or pipe threader B via a spring hook.

[0010] Preferably, in step S5, when the optical cable is initially pulled, team A is in the first skylight position and team B is in the second skylight position.

[0011] Preferably, the tube threader is a high-strength flexible wire.

[0012] Preferably, a guide frame is placed at the skylight; The guide frame includes a suspension rod and a U-shaped frame. The suspension rod is placed horizontally at the skylight, and the two ends of the suspension rod are respectively placed on both sides of the top of the channel at the skylight.

[0013] Preferably, the U-shaped frame is suspended in the center of the hanging rod, with the U-shaped opening of the U-shaped frame facing upwards. A pulley is rotatably installed in the center of the U-shaped opening so that the tube threader or optical cable passes over the pulley.

[0014] Preferably, the middle section of the boom near both sides of the U-shaped frame is thickened.

[0015] Preferably, the lengths of tube inserter A and tube inserter B are the same.

[0016] Compared with the closest existing technology, the technical solution of the embodiments of the present invention has the following beneficial effects: This invention uses a specially designed conduit puller to perform cyclic relay pulling of optical cables to achieve uninterrupted continuous laying. The process is rigorous, the division of labor is clear, and the working time is used rationally. Moreover, it does not require additional power equipment, which makes it more convenient for workers to move around, resulting in higher work efficiency, lower construction costs, and eliminating wasted effort. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. Wherein: Figure 1 This is a preliminary arrangement diagram of the pipe threader A and pipe threader B of the present invention in the channel; Figure 2 This is a front view schematic diagram of the tube inserter structure of the present invention; Figure 3 This is a top view of the guide frame structure of the present invention.

[0018] In the diagram: 1. Pipe threader A; 2. Pipe threader B; 3. Skylight; 4. Breach ball; 5. Pull ring; 6. Traction ring; 7. Rope; 8. Spring hook; 9. Boom; 10. U-shaped frame; 11. Pulley. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. Indeed, those skilled in the art will recognize that modifications and variations can be made to the invention without departing from its scope or spirit. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the invention encompass such modifications and variations falling within the scope of the appended claims and their equivalents.

[0020] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of the invention described herein can be implemented in an order other than that illustrated or described herein.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0022] In the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected," "linked," and "set up" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] This invention provides a method for laying optical cables using a cyclic relay system in integrated cable ducts. The method involves rigorous construction steps, fast construction speed, high efficiency, high-quality and orderly operation throughout the process, and significantly reduces the probability of damage to the optical cables.

[0024] Example 1 Step S1, refer to Figure 1-3 Prepare two specially designed pipe-piercing devices and two corresponding teams of personnel, namely Pipe Pipe A and Team A, and Pipe Pipe B and Team B, with one person in each team. Pipe Pipe A and Pipe Pipe B are the same length, both set at 25 meters. The pipe-piercing devices are made of high-strength flexible wires, which can be made of steel wire or polymer materials. Correspondingly, the cover plate lifting group is also set according to the 25-meter pipe-piercing device. The head end of Pipe Pipe A and Pipe Pipe B is fitted with a barrier-breaking ball 4 and a pull ring 5 is fixed. The tail end of Pipe Pipe A and Pipe Pipe B is fixed with a traction ring 6.

[0025] Specifically, after the head of the pipe inserter passes through the center of the obstacle-breaking ball 4, the pipe inserter is wrapped with shims in front of and behind the obstacle-breaking ball 4 and then physically flattened with a special tool to restrict the displacement of the obstacle-breaking ball 4 through the shims. The obstacle-breaking ball 4 can be a steel ball or a wooden ball and is made to be hollow. The function of the obstacle-breaking ball 4 is to provide great convenience for the head of the pipe inserter to shuttle in the channel. During the pushing of the pipe inserter, it will not be blocked by some protrusions, ensuring that the pipe inserter can shuttle smoothly and efficiently in the channel.

[0026] Both the pull ring 5 and the traction ring 6 are similar to copper lugs. They are attached to the head or tail end of the tube inserter, and then physical pressure is applied to them using a special tool to fix them to the end of the tube inserter. The pull ring 5 is set up to facilitate the puller to be pulled by the staff, and the traction ring 6 is set up to facilitate the connection of the tube inserter to the optical cable.

[0027] Step S2: According to the distance between the beginning and end of the total length of the conduit, 2 cover plates are removed after passing through 48 cover plates. The gap after removing the cover plates is 1 meter, thus forming a skylight 3 above the channel. At the same time, the cover plates are removed in the same way in the direction of optical cable laying.

[0028] Step S3: The conduit installation team enters the site. Team A and Team B are required to simultaneously deploy conduit installation tools A and B. Team A is positioned at the first skylight 3, and Team B is positioned at the second skylight 3. Team A inserts the head end of conduit installation tool A through the first skylight 3 and pushes it in the direction of optical cable laying. Then, Team B leads the head end of conduit installation tool A out through the second skylight 3. At the same time, Team B inserts the head end of conduit installation tool B through the second skylight 3 and pushes it in the direction of optical cable laying, i.e., the next skylight 3. When Team B moves to the third skylight 3, it will lead the head end of conduit installation tool B out through the third skylight 3. During this process, the positions of Team A and Team B remain unchanged when the conduit installation tools are initially deployed simultaneously.

[0029] Step S4: Lay out the optical cable. Place the long-reel optical cable laying frame near the first skylight 3 so that the laying direction of the optical cable is consistent with its laying direction in the channel.

[0030] Step S5: Laying the optical cable. Team A connects the tail end of the A conduit puller to the optical cable connector. Team B hooks the spring hook 8 at the pulling end of rope 7 onto the pull ring 5 of the A conduit puller. This pulls the head end of the A conduit puller to traction the optical cable. Rope 7 can be made of nylon or hemp rope. The length of rope 7 depends on the actual situation and does not need to be too long, just enough to pull the conduit puller. After the A conduit puller is completely detached from the channel from the second skylight 3, Team B moves to the third skylight 3, and Team A also moves to the second skylight 3. At this time, Team A needs to connect the tail end of the B conduit puller to the optical cable connector, usually using the spring hook 8 for quick replacement. Team B also needs to guide the head end of the A conduit puller into the channel from the third skylight 3. Next, Team B needs to transfer rope 7 from the head end of conduit A to the head end of conduit B to pull conduit B. While Team B pulls conduit B, Team A pushes it in the direction of fiber optic cable laying through the tail end of conduit A, so that conduit A gradually enters the channel from the third skylight 3 opening. After Team B has completely pulled conduit B out of the channel from the third skylight 3 opening, Team B reaches the fourth skylight 3 opening, and Team A also moves to the third skylight 3 opening. Correspondingly, conduit A is also completely pushed into the channel by Team A. At this time, conduit A is in the channel between the third skylight 3 opening and the fourth skylight 3 opening. Then, Team A needs to transfer the fiber optic cable connector from the tail end of conduit B to the tail end of conduit A. Team B also needs to transfer rope 7 from the head end of conduit B to the head end of conduit A, and at the same time, introduce the head end of conduit B into the channel from the fourth skylight 3 opening. Next, after Team B completely pulls the A conduit puller out of the channel from the fourth skylight opening 3, Team B reaches the fifth skylight opening 3, while Team A moves to the fourth skylight opening 3. Correspondingly, Team A also completely pushes the B conduit puller into the channel. At this time, the B conduit puller is in the channel between the fourth skylight opening 3 and the fifth skylight opening 3. Then, by alternating in this cycle, the continuous and uninterrupted laying of the optical cable can be achieved.

[0031] In Example 2, to prevent damage to the conduit inserter and optical cable due to friction, a guide frame can be placed in each skylight 3. The guide frame includes a suspension rod 9 and a U-shaped frame 10. The suspension rod 9 is placed horizontally at the opening of the skylight 3, with its two ends resting on the top sides of the channel at the opening of the skylight 3. The U-shaped frame 10 is suspended in the center of the suspension rod 9, that is, the suspension rod 9 is inserted horizontally at the top of the U-shaped frame 10, with the U-shaped opening of the U-shaped frame 10 facing upwards. A pulley 11 is rotatably installed in the center of the U-shaped opening so that the conduit inserter or optical cable passes over the pulley 11. The middle section of the suspension rod 9 near both sides of the U-shaped frame 10 is thickened by wrapping it with Teflon tape to limit the position of the U-shaped frame 10, keeping it centered and concentrating the force.

[0032] During actual operation, due to the traction force applied to the tube inserter and optical cable, the guide frame will be pulled to the end of the adjacent channel cover plate, so that the guide frame can be stably pressed against the channel cover plate, thereby stably guiding the tube inserter and optical cable.

[0033] This invention uses a specially designed conduit puller to perform cyclic relay pulling of optical cables to achieve uninterrupted continuous laying. The process is rigorous, the division of labor is clear, and the working time is used rationally. It does not require additional power equipment, which makes it easier for workers to move around, resulting in higher work efficiency, lower construction costs, elimination of wasted effort, and extremely high work quality. It provides great convenience for actual optical cable laying projects.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for laying optical cables using a cyclic relay system in a comprehensive cable duct, characterized in that, include: Step S1: Prepare two specially designed pipe threading tools and two corresponding teams of workers, namely pipe threading tool A and team A, and pipe threading tool B and team B. Step S2: Open the cover plate above the channel to form a skylight according to the first and last spacing of the total length of the tube inserter. At the same time, open the cover plate in the direction of optical cable laying in a cyclical manner according to this spacing. In step S3, teams A and B simultaneously deploy conduit inserter A and conduit inserter B. Team A inserts the head end of conduit inserter A through the first skylight and pushes it in the direction of optical cable laying, then leads the head end of conduit inserter A out through the second skylight. At the same time, team B inserts the head end of conduit inserter B through the second skylight and pushes it in the direction of optical cable laying, then leads the head end of conduit inserter B out through the third skylight. Step S4: Lay out the optical cable and place the optical cable laying frame near the first skylight; Step S5: Laying the optical cable. Team A connects the tail end of conduit A to the optical cable connector. Team B pulls the head end of conduit A to pull the optical cable. After conduit A is completely detached from the cable tray, Team A connects the tail end of conduit B to the optical cable connector. Team B guides the head end of conduit A into the cable tray and pulls conduit B. At the same time, Team A pushes conduit A in the direction of optical cable laying. After conduit B is completely detached from the cable tray, conduit A is fully inserted into the cable tray. Team A connects the tail end of conduit A to the optical cable connector. Team B guides the head end of conduit B into the cable tray and pulls conduit A. At the same time, Team A pushes conduit B in the direction of optical cable laying. This cycle is repeated.

2. The integrated cable duct circulating relay type optical cable traction laying method according to claim 1, characterized in that, Both the A-tube inserter and the B-tube inserter have a barrier-breaking ball fitted at their heads and a pull ring fixed thereon. Both tube inserter A and tube inserter B have traction rings fixed to their tail ends.

3. The integrated cable duct circulating relay type optical cable traction laying method according to claim 1, characterized in that, In step S5, both Team A and Team B pull the ends of the A pipe threader and the B pipe threader using ropes.

4. The integrated cable duct circulating relay type optical cable traction laying method according to claim 3, characterized in that, The traction end of the rope is alternately hooked to the pull ring at the head of either pipe threader A or pipe threader B via spring hooks.

5. The integrated cable duct circulating relay type optical cable traction laying method according to claim 1, characterized in that, In step S5, when the optical cable is initially pulled, team A is in the first skylight position and team B is in the second skylight position.

6. The integrated cable duct circulating relay type optical cable traction laying method according to claim 1, characterized in that, The tube threader is made of high-strength flexible wire.

7. The integrated cable duct circulating relay type optical cable traction laying method according to claim 1, characterized in that, A guide frame is placed at the skylight; The guide frame includes a suspension rod and a U-shaped frame. The suspension rod is placed horizontally at the skylight, and the two ends of the suspension rod are respectively placed on both sides of the top of the channel at the skylight.

8. The integrated cable duct circulating relay type optical cable traction laying method according to claim 7, characterized in that, The U-shaped frame is suspended in the center of the hanging rod, with the U-shaped opening of the frame facing upwards. A pulley is rotatably installed in the center of the U-shaped opening so that the tube threader or optical cable passes over the pulley.

9. The integrated cable duct circulating relay type optical cable traction laying method according to claim 8, characterized in that, The middle section of the boom near both sides of the U-shaped frame is thickened.

10. The integrated cable duct circulating relay type optical cable traction laying method according to claim 1, characterized in that, The lengths of tube inserter A and tube inserter B are the same.

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