Cable laying device

Abstract

The utility model provides a cable laying device, and belongs to the technical field of cable laying, the cable laying device specifically comprises a pipeline, a lower cover plate and an end sleeve which are fixed on the inner wall of an underground channel, the pipeline comprises a straight pipe and a bent pipe, the straight pipe corresponds to a linear section of the underground channel, and the bent pipe corresponds to the straight section of the underground channel. The bent pipe corresponds to the turning position of the underground trench, the two ends of the bent pipe are connected with the straight pipes, the bottom of the pipeline is provided with a through groove, the through groove is used for moving a cable out of the pipeline, the lower cover plate is used for sealing the through groove, the lower cover plate comprises a straight section and a steering section which are distributed along the pipeline, the straight section corresponds to the straight pipes, the steering section corresponds to the bent pipe, and the lower cover plate is detachably connected with the pipeline. According to the processing scheme, the cable laying efficiency is improved, and damage to the cable in the laying process is reduced.

Description

Technical Field

[0001] The present application relates to the field of cable laying, and in particular to a cable laying device. Background Art

[0002] At present, the laying of cables in underground trenches is all done manually. One end of the cable is connected to a steel wire rope, and the steel wire rope is passed from one end of the underground trench to the other end. A machine or manual force is applied to the steel wire rope at the other end to pass the cable into the underground trench. Due to the presence of turns and sharp objects in the underground trench, multiple personnel are required to assist in pulling the wire at various positions in the underground trench to ensure that the cable can turn smoothly to avoid getting stuck or being cut by sharp objects, resulting in low laying efficiency. Utility Model Content

[0003] In view of this, the present application provides a cable laying device that solves the problems in the prior art, improves the cable laying efficiency, and reduces damage to the cable during the laying process.

[0004] The present application provides a cable laying device that adopts the following technical solution:

[0005] A cable laying device is used for laying cables in underground trenches. The cable laying device includes a pipe fixed on the inner wall of the underground trench, a lower cover and an end sleeve. The pipe includes a straight pipe and a curved pipe. The straight pipe corresponds to the straight section of the underground trench, and the curved pipe corresponds to the turning position of the underground trench. Both ends of the curved pipe are connected to the straight pipe. A through groove is provided at the bottom of the pipe. The through groove is used for allowing the cable to be moved out of the pipe. The lower cover is used to close the through groove. The lower cover includes a straight section and a turning section distributed along the pipe. The straight section corresponds to the straight pipe, and the turning section corresponds to the curved pipe. The lower cover is detachable and connected to the pipe. Each end of the pipeline is provided with an end sleeve, and the end sleeve includes mutually connected sleeve sections, and the sleeve sections are detachably sleeved on the pipeline and the outer periphery of the lower cover plate of the corresponding pipeline end. The sleeve section is a double-layer structure, the inner ring of the sleeve section is located inside the pipeline, and the outer ring of the sleeve section is located outside the pipeline. The inner ring and outer ring of the end face of the sleeve section close to the pipeline port are connected by a closed ring, the inner ring of the closed ring protrudes from the inner ring of the sleeve section, and the inner wall surface of the closed ring is arc-shaped in the circumferential direction, the inner diameter of the inner wall surface of the closed ring shrinks and then expands from one end to the other end, and the inner wall surface of the closed ring changes in a curve along the axial direction.

[0006] By adopting the above technical solution, a channel is preset in the underground trench. The design of the channel includes a straight pipe covering the straight section of the underground trench and a curved pipe at the turning position of the underground trench. When laying the cable, the lower cover plate closes the through groove, and the steel wire rope for pulling the cable is passed into the preset pipe. The steel wire rope pulls the cable along the pipe, and it can smoothly pass through the straight section of the underground trench and smoothly complete the turn along the curved pipe through the turning position of the underground trench, avoiding the problem of the cable moving arbitrarily in the underground trench or failing to complete the turn smoothly at the turning position of the underground trench. This design is different from arranging multiple people to assist in pulling the wire in the underground trench, which reduces the number of people required. After a cable is laid, the lower cover plate and the pipeline are separated, the through groove is opened, and the cable falls out of the pipeline under the action of gravity. Then the personnel organize the cable to complete the laying of the cable. Although the cable laying device of the present application requires personnel to open and close the lower cover, compared with the entire wire pulling process, which requires multiple personnel to assist in supervising the direction of the cable, the present application only requires a few personnel to quickly complete the lowering of the cable and the resetting of the laying device after the cable laying is completed. Overall, it still saves manpower, and there is no need to worry about the cable getting stuck or the cable being damaged. The threading efficiency is greatly improved. The laying device of the present application still has great advantages.

[0007] Optionally, the straight pipe and the curved pipe of the sleeve are integrally arranged.

[0008] By adopting the above technical solution, the continuity of the inner wall of the pipeline is ensured, the situation where the cable is stuck in the pipeline is reduced, and the laying efficiency is improved.

[0009] Optionally, the portion of the lower cover corresponding to each straight pipe includes several straight sections, the inlet end of the pipe is the first end, the outlet end of the pipe is the second end, and the inner wall of the straight section gradually tilts upward in the direction from the first end to the second end, and the inner wall of the turning section gradually tilts upward.

[0010] By adopting the above technical solution, along the threading direction, the rear end of the previous straight section is higher than the front end of the next straight section, and the cable can smoothly pass through the docking position of the two straight sections, reducing the possibility of the cable getting stuck in the pipe.

[0011] Optionally, the cable laying device also includes support frames located on both sides of the pipeline, the support frames are installed on the inner wall of the underground trench, one side of the straight section is rotatably connected to the support frame on one side, the other side of the straight section is provided with a buckle for clamping with the support frame on the other side, the side of the turning section corresponding to the concave side of the bend is rotatably connected to the support frame on one side, and the side of the turning section corresponding to the convex side of the bend and the other side are provided with a buckle for clamping with the support frame on the other side.

[0012] By adopting the above technical solution, the buckles of the straight section and the support frame, as well as the buckles of the turning section and the support frame are separated, and the straight section and the turning section rotate downward under the action of their own gravity to expose the through groove. The cables in the pipeline can fall into the pipeline through the through groove. After the cables are removed, the straight section and the support frame, as well as the turning section and the support frame are connected by buckles. In this application, the upper cover plate is installed in the underground trench through an independent support frame, and the installation of the lower cover plate does not rely on the support of the pipeline, thereby improving the supporting effect of the upper cover plate on the cable.

[0013] Optionally, a first connecting shaft corresponding to the straight section and a second connecting shaft corresponding to the curved section are fixed on one side of the rotational connection between the support frame and the straight section, and a plurality of bearings are provided on the first connecting shaft and the second connecting shaft, and the bearings are connected to the inner ring of the first connecting shaft or the second connecting shaft, and the outer ring of the bearing on the straight section and the first connecting shaft is fixedly connected, and the outer ring of the bearing on the steering section and the second connecting shaft is fixed.

[0014] Optionally, the first connecting shaft corresponding to any straight tube is arranged in sections, and several first connecting shafts of several straight sections are arranged in one-to-one correspondence.

[0015] By adopting the above technical solution, the segmented design of the first connecting shaft can be individually disassembled and replaced when a straight section is damaged.

[0016] Optionally, each straight section is correspondingly connected to a plurality of the bearings, and a plurality of buckles are provided on one straight section.

[0017] By adopting the above technical solution, the strength of the connection structure between the straight section and the support frame is improved, and the reliability and service life of the laying device are improved.

[0018] Optionally, the side walls of the through groove are rounded.

[0019] By adopting the above technical solution, it is possible to prevent the edge of the through groove from scratching the cable.

[0020] In summary, this application has the following beneficial technical effects:

[0021] When laying the cable, the lower cover plate closes the through groove and the steel wire rope for pulling the cable is passed into the preset pipe. The steel wire rope pulls the cable along the pipe, and it can smoothly pass through the straight section of the underground trench and smoothly complete the turn along the curved pipe through the turning position of the underground trench, avoiding the problem of the cable moving arbitrarily in the underground trench or failing to complete the turn smoothly at the turning position of the underground trench.

[0022] The pipe and the lower cover are wrapped by the end sleeve to prevent the pipe end and the lower cover from separating, thereby preventing the cable from entering the area between the pipe end and the lower cover and preventing the cable from getting stuck. In addition, the cable contacts the inner ring of the arc-shaped closed ring at the pipe end, reducing scratches and damage to the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 A schematic diagram of the structure of the cable laying device for this application installed on the underground trench;

[0025] Figure 2 This is a structural schematic diagram of the cable laying device of this application installed on the underground trench from another perspective;

[0026] Figure 3 This is a schematic diagram of the structure of the pipeline and lower cover plate of this application;

[0027] Figure 4 This is a schematic diagram of the structure of the end sleeve of this application;

[0028] Figure 5 This is a schematic diagram of the internal structure of the end sleeve of this application.

[0029] Explanation of the accompanying drawings: 1. Underground channel; 2. Pipeline; 21. Straight pipe; 22. Bend pipe; 23. Through groove; 3. Lower cover plate; 31. Straight section; 32. Turning section; 4. End sleeve; 41. Sleeve section; 42. Closed ring; 5. Support frame; 51. First connecting shaft; 52. Second connecting shaft; 53. Bearing. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0031] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0032] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0033] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0034] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.

[0035] An embodiment of the present application provides a cable laying device for laying cables in underground trenches.

[0036] like Figure 1 、 Figure 2 and Figure 3As shown, a cable laying device includes a pipe 2 fixed on the inner wall of an underground trench 1, a lower cover plate 3 and an end sleeve 4. The pipe 2 includes a straight pipe 21 and a curved pipe 22. The straight pipe 21 corresponds to the straight section of the underground trench 1, and the curved pipe 22 corresponds to the turning position of the underground trench 1. The two ends of the curved pipe 22 are connected to the straight pipe 21. The bottom of the pipe 2 is provided with a through groove 23. The through groove 23 is used for allowing the cable to be removed from the pipe 2. The lower cover plate 3 is used to close the through groove 23. The lower cover plate 3 includes a straight section 31 and a turning section 32 distributed along the pipe 2. The straight section 31 corresponds to the straight pipe 21, and the turning section 32 corresponds to the curved pipe 22. The lower cover plate 3 is detachably connected to the pipe 2. The pipe 2 is installed on the wall of the underground trench 1 by buried expansion bolts. In the embodiment of the present application, the bottom opening of the pipe 2 is set, and the opening at the bottom of the pipe 2 serves as the through groove 23. The straight section 31 and the turning section 32 are located below the pipe 2, and the straight section 31 and the turning section 32 cover the outer surface of the through groove 23.

[0037] A channel is preset in the underground trench 1. The design of the channel includes a straight pipe 21 covering the straight section of the underground trench 1 and a curved pipe 22 at the turning position of the underground trench 1. When laying the cable, the lower cover 3 closes the through groove 23, and the steel wire rope for pulling the cable is passed into the preset pipe 2. The steel wire rope pulls the cable along the pipe 2, and can smoothly pass through the straight section of the underground trench 1 and smoothly complete the turn along the curved pipe 22 through the turning position of the underground trench 1, thereby avoiding the problem of the cable moving arbitrarily in the underground trench 1 or failing to smoothly complete the turn at the turning position of the underground trench 1. This design is different from arranging multiple personnel to assist in pulling the wire in the underground trench 1, which reduces the number of personnel required. After a cable is laid, the lower cover 3 and the pipe 2 are separated, the through groove 23 is opened, and the cable falls out of the pipe 2 under the action of gravity. Then the personnel organize the cable to complete the laying of the cable. Although the cable laying device of the present application requires personnel to open and close the lower cover 3, compared with the entire wire pulling process, which requires multiple personnel to assist in supervising the direction of the cable, the present application only requires a few personnel to quickly complete the lowering of the cable and the resetting of the laying device after the cable laying is completed. Overall, it still saves manpower, and there is no need to worry about the cable getting stuck or the cable being damaged. The threading efficiency is greatly improved. The laying device of the present application still has great advantages.

[0038] The sidewalls of the through slot 23 are rounded to prevent the edges of the through slot 23 from scratching the cable.

[0039] The straight pipe 21 and the curved pipe 22 of the sleeve are integrally arranged to ensure the continuity of the inner wall of the pipe 2, reduce the situation where the cable is stuck in the pipe 2, and improve the laying efficiency.

[0040] like Figure 3 and Figure 4As shown, each end of the pipe 2 is provided with an end sleeve 4, and the end sleeve 4 includes mutually connected sleeve sections 41, and the sleeve sections 41 are detachably sleeved on the pipe 2 and the outer periphery of the lower cover plate 3 corresponding to the end of the pipe 2. The sleeve section 41 is a double-layer structure, and the inner ring of the sleeve section 41 is located inside the pipe 2, and the outer ring of the sleeve section 41 is located outside the pipe 2. The inner ring and outer ring of the end face of the sleeve section 41 close to the port of the pipe 2 are connected by a closed ring 42, and the inner ring of the closed ring 42 protrudes from the inner ring of the sleeve section 41, as shown in FIG. Figure 5 As shown, the inner wall surface of the closed ring 42 is in an arc shape in the circumferential direction, the inner diameter of the inner wall surface of the closed ring 42 decreases and then increases from one end to the other end, and the inner wall surface of the closed ring 42 changes in a curve along the axial direction, and the radial cross-section of the inner wall surface of the closed ring 42 is in an arc shape.

[0041] The end sleeve 4 wraps around the pipe 2 and the lower cover 3, preventing the end of the pipe 2 from separating from the lower cover 3. This prevents the cable from entering the area between the end of the pipe 2 and the lower cover 3, preventing the cable from getting stuck. Furthermore, the cable contacts the inner ring of the curved sealing ring 42 at the end of the pipe 2, reducing scratches and damage to the cable. To remove the cable from the pipe 2, simply remove the end sleeve 4.

[0042] The portion of the lower cover plate 3 corresponding to each straight pipe 21 includes several straight sections 31. The first end is the inlet of the pipe 2, and the second end is the outlet of the pipe 2. The inner walls of the straight sections 31 gradually slope upward from the first end to the second end, and the inner walls of the turning sections 32 gradually slope upward. Along the threading direction, the rear end of the previous straight section 31 is higher than the front end of the next straight section 31, allowing the cable to pass smoothly through the docking point of the two straight sections 31, reducing the risk of the cable getting stuck in the pipe 2.

[0043] The cable laying device includes support frames 5 located on both sides of the pipe 2. The support frames 5 are installed on the inner wall of the underground trench 1 and are installed on the wall of the underground trench 1 via buried expansion bolts. One side of the straight section 31 is rotatably connected to the support frame 5 on one side, and the other side of the straight section 31 is provided with a buckle that engages with the support frame 5 on the other side. The turning section 32 is rotatably connected to the support frame 5 on one side, corresponding to the concave side of the bend 22. The turning section 32 is provided with a buckle that engages with the support frame 5 on the other side, corresponding to the convex side of the bend 22. The buckle is not shown in the figure and is a conventional press-lock buckle that is fixed to the support frame 5.

[0044] Separate the buckles of the straight section 31 and the support frame 5, as well as the buckles of the turning section 32 and the support frame 5. The straight section 31 and the turning section 32 rotate downward under the action of their own gravity, exposing the through groove 23. The cable in the pipe 2 can fall into the pipe 2 through the through groove 23. After the cable is removed, the straight section 31 and the support frame 5, as well as the turning section 32 and the support frame 5 are connected by buckles. In this application, the upper cover plate is installed in the underground trench 1 through an independent support frame 5. The installation of the lower cover plate 3 does not rely on the support of the pipe 2, thereby improving the supporting effect of the upper cover plate on the cable.

[0045] A first connecting shaft 51 corresponding to the straight section 31 and a second connecting shaft 52 corresponding to the curved tube 22 are fixed to one side of the support frame 5 where it is rotatably connected to the straight section 31. The first connecting shaft 51 is welded to the bottom end of the support frame 5, and the second connecting shaft 52 is welded to the bottom end of the support frame 5. Multiple bearings 53 are provided on each of the first and second connecting shafts 51, 52. The outer rings of the bearings 53 on the first connecting shaft 51 and the second connecting shaft 52 are fixedly connected to the straight section 31. The outer rings of the bearings 53 on the second connecting shaft 52 are fixed. The straight section 31 and the bearings 53 are welded together, and the turning section 32 and the bearings 53 are welded together.

[0046] The first connecting shaft 51 corresponding to any straight tube 21 is provided in sections, and a plurality of the straight sections 31 are provided in a one-to-one correspondence with a plurality of the first connecting shafts 51. The sectioned design of the first connecting shaft 51 allows for individual removal and replacement of a straight section 31 when it is damaged.

[0047] One straight section 31 is connected to a plurality of bearings 53, and one straight section 31 is provided with a plurality of buckles, thereby improving the strength of the connection structure between the straight section 31 and the support frame 5 and increasing the reliability and life of the laying device.

[0048] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A cable laying device, characterized in that: Used for laying cables in an underground trench (1), the cable laying device comprises a pipe (2) fixed on the inner wall of the underground trench (1), a lower cover plate (3) and an end sleeve (4), the pipe (2) comprises a straight pipe (21) and a curved pipe (22), the straight pipe (21) corresponds to the straight section of the underground trench (1), the curved pipe (22) corresponds to the turning position of the underground trench (1), and both ends of the curved pipe (22) are connected to the straight pipe (21). The bottom of the pipeline (2) is provided with a through groove (23), the through groove (23) is used for allowing the cable to be removed from the pipeline (2), the lower cover (3) is used to close the through groove (23), the lower cover (3) comprises a straight section (31) and a turning section (32) distributed along the pipeline (2), the straight section (31) corresponds to the straight pipe (21), the turning section (32) corresponds to the curved pipe (22), and the lower cover (3) is detachable The invention relates to a pipe (2) connected to the pipe. Each end of the pipe (2) is provided with an end sleeve (4). The end sleeve (4) comprises mutually connected sleeve sections (41). The sleeve sections (41) are detachably sleeved on the pipe (2) and the outer periphery of the lower cover plate (3) corresponding to the end of the pipe (2). The sleeve section (41) is a double-layer structure. The inner ring of the sleeve section (41) is located inside the pipe (2), and the outer ring of the sleeve section (41) is located outside the pipe (2). The inner ring and the outer ring of the end face of the sleeve section (41) close to the end of the pipe (2) are connected by a closed ring (42). The inner ring of the closed ring (42) protrudes from the inner ring of the sleeve section (41), and the inner wall surface of the closed ring (42) is in the shape of an arc in the circumferential direction. The inner diameter of the inner wall surface of the closed ring (42) decreases and then increases from one end to the other end, and the inner wall surface of the closed ring (42) changes in a curved shape along the axial direction.

2. The cable laying device according to claim 1, characterized in that The straight tube (21) and the curved tube (22) of the sleeve are integrally arranged.

3. The cable laying device according to claim 1, characterized in that The portion of the lower cover plate (3) corresponding to each straight pipe (21) includes a plurality of straight sections (31), the inlet end of the pipe (2) is the first end, the outlet end of the pipe (2) is the second end, and the inner wall of the straight section (31) gradually tilts upward in the direction from the first end to the second end, and the inner wall of the turning section (32) gradually tilts upward.

4. The cable laying device according to claim 3, characterized in that: The cable laying device further comprises support frames (5) located on both sides of the pipeline (2), the support frames (5) being mounted on the inner wall of the underground trench (1), one side of the straight section (31) being rotatably connected to the support frame (5) on one side, the other side of the straight section (31) being provided with a buckle for clamping with the support frame (5) on the other side, the turning section (32) being rotatably connected to the support frame (5) on one side corresponding to the concave side of the curved pipe (22), and the turning section (32) being provided with a buckle for clamping with the support frame (5) on the other side on one side, and the one side and the other side of the turning section (32) being provided with a buckle for clamping with the support frame (5) on the other side corresponding to the convex side of the curved pipe (22).

5. The cable laying device according to claim 4, characterized in that: A first connecting shaft (51) corresponding to the straight section (31) and a second connecting shaft (52) corresponding to the curved pipe (22) section are fixed to one side of the support frame (5) and the straight section (31). The first connecting shaft (51) and the second connecting shaft (52) are both provided with a plurality of bearings (53). The bearings (53) are connected to the inner ring of the first connecting shaft (51) or the second connecting shaft (52). The straight section (31) and the outer ring of the bearing (53) on the first connecting shaft (51) are fixedly connected. The outer ring of the bearing (53) on the steering section (32) and the second connecting shaft (52) is fixed.

6. The cable laying device according to claim 5, characterized in that: The first connecting shaft (51) corresponding to any straight tube (21) is arranged in sections, and a plurality of the straight sections (31) and a plurality of the first connecting shafts (51) are arranged in a one-to-one correspondence.

7. The cable laying device according to claim 6, characterized in that: One of the straight sections (31) is correspondingly connected to a plurality of the bearings (53), and one of the straight sections (31) is provided with a plurality of buckles.

8. The cable laying device according to claim 1, characterized in that: The side walls of the through groove (23) are provided with rounded corners.

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