Device for quickly laying high-voltage cable

Abstract

The utility model belongs to the technical field of cable laying, and particularly relates to a device for rapidly laying a high-voltage cable. The cable laying device is used for cable laying in a cable trench. The side wall of the cable trench is provided with a cable hole and a guiding mechanism. The pay-off mechanism is connected to the surface of the opening of the cable trench; the guide mechanism is connected to the inner side wall of the cable trench; the projection of the connecting line of the center of the guiding mechanism and the center of the paying-off mechanism coincides with the axis of the cable hole. The high-voltage cable paying-off device solves the problems that in the prior art, when high-voltage cables are paid off through manual or mechanical laying, a large amount of manpower is not needed for assistance, time for binding and pulling cables is saved, paying-off efficiency is improved, construction cost is greatly saved, and meanwhile cable skin is prevented from being scratched to a great extent. The device is simple in structure and easy to erect, all components can be found on a construction site, and the device is easy to implement.

Description

Technical Field

[0001] This utility model belongs to the field of cable laying technology, specifically relating to a device for quickly laying high-voltage cables. Background Technology

[0002] Generally, high-voltage cables of 35kV and above have a larger diameter and are made of copper or aluminum. When laying cables over long distances, the weight of these cables is typically substantial. When laying cables through cable holes, on-site construction often involves using winches, hoists, or a large amount of manual labor to pull the cable. Relying on brute force to pull the cable in a straight line until it is in place is time-consuming and significantly increases construction costs.

[0003] When laying long-distance cables, after the cable head passes through the cable hole, the cable length is relatively long, so there is more cable in the cable hole, which increases the weight. The cable after exiting the cable hole is difficult to pull and lay, requiring more manpower. At the same time, the edge of the cable hole exit is relatively sharp, which poses a risk of scratching the cable.

[0004] When laying cables manually, especially when the cable length is long, the position of the cable rope needs to be constantly adjusted and frequently changed, which greatly increases the construction time. Utility Model Content

[0005] This utility model provides a device for quickly laying high-voltage cables. One of its objectives is to provide a device that can overcome the problem of constantly adjusting the position of the cable rope when laying high-voltage cables manually or mechanically in the prior art. Another objective is to provide a device that can avoid scratching the cable sheath.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A device for rapidly laying high-voltage cables is provided for cable laying in cable trenches, wherein cable holes are provided on the sidewalls of the cable trenches.

[0008] A cable-laying mechanism is attached to the surface of the cable trench opening;

[0009] The guiding mechanism is connected to the inner wall of the cable trench;

[0010] The projection of the line connecting the center of the guiding mechanism and the center of the cable feeding mechanism coincides with the axis of the cable hole.

[0011] The cable laying mechanism includes a support and a roller assembly; the support is fixed to the surface of the cable trench opening; the roller assembly is connected to the support.

[0012] The roller assembly includes at least two cable laying pulleys; the two cable laying pulleys are rotatably connected to a bracket.

[0013] The guiding mechanism includes two sets of steering units; the two sets of steering units are fixedly connected to the inner wall of the cable trench, one above the other; the projection of the center line connecting the two sets of steering units coincides with the axis of the cable hole; the distance between the upper steering unit and the inner wall of the cable trench is greater than the distance between the lower steering unit and the inner wall of the cable trench.

[0014] The two sets of steering units have the same structure.

[0015] Each steering unit includes a fixing mechanism and a steering roller; the steering roller is rotatably connected to the fixing mechanism; the fixing mechanism is connected to the inner wall of the cable trench.

[0016] The fixing mechanism includes a support rod, a connector, a connecting rod, and a fixing component; both ends of the support rod are fixed to the side wall of the cable trench by the fixing component; the connecting rod is connected to the support rod by the connector; and the steering roller is sleeved on the support rod.

[0017] Both the support rod and the connecting rod are made of galvanized steel pipe.

[0018] The connector is a swivel fastener.

[0019] The fastener is an expansion bolt.

[0020] Beneficial effects:

[0021] (1) This utility model is applicable to cable laying of 35kV and above after passing through the cable hole. The structure of this utility model is simple and easy to assemble. All components can be found on the construction site and are easy to implement.

[0022] (2) Due to the assistance of pulleys, the speed of wire feeding can be greatly improved in this utility model.

[0023] (3) The present invention leaves a certain safe distance between the cable outlet and the edge of the cable hole, so that the cable will not touch the edge of the cable hole and will not damage the cable sheath. This not only speeds up the cable laying efficiency, but also reduces the risk of replacing the cable.

[0024] (4) The fixing mechanism in this utility model can be set up so that the length of the support rod can be changed arbitrarily according to the width of the cable trench, and the construction is simple.

[0025] (5) The setting of the steering roller in this utility model can adjust its own concavity according to the diameter of the cable on site, which is suitable for various types of high voltage cables and can be used for cables that are laid in cable trenches and exit through cable holes in most cases.

[0026] (6) This utility model does not require a lot of manual assistance when the cable is being pulled out, which saves the time of binding the traction cable and greatly reduces the construction cost.

[0027] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A front view of this utility model.

[0030] Figure 2 A side view of this utility model.

[0031] In the diagram: 1. Fixing mechanism; 2. Steering roller; 1-1. Support rod; 1-2. Connector; 1-3. Fixing component; 1-4. Connecting rod; 3. Cable laying mechanism; 3-1. Bracket; 3-2. Roller assembly; 3-3. Cable laying pulley; 4. Cable hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example:

[0034] according to Figure 1 and Figure 2 The device shown is for rapidly laying high-voltage cables in cable trenches. The sidewalls of the cable trenches have cable holes 4.

[0035] Cable laying mechanism 3 is connected to the surface of the cable trench opening;

[0036] The guiding mechanism is connected to the inner wall of the cable trench;

[0037] The projection of the line connecting the center of the guiding mechanism and the center of the cable feeding mechanism 3 coincides with the axis of the cable hole 4.

[0038] In actual use, the end of the high-voltage cable to be laid enters the cable trench through the cable laying mechanism 3 and is guided into the cable hole 4 by the guiding mechanism.

[0039] This invention is applicable to the laying of cables of 35kV and above after passing through cable holes. The structure of this invention is simple and easy to assemble; all components can be found on the construction site, making it easy to implement.

[0040] This invention leaves a certain safe distance between the cable and the edge of the cable hole 4, so that the cable will not touch the edge of the cable hole 4 and will not damage the cable sheath. This not only improves the efficiency of cable laying, but also reduces the risk of replacing the cable.

[0041] This invention eliminates the need for extensive manual assistance during cable routing, saving time on tying traction cables and significantly reducing construction costs.

[0042] In some embodiments, the cable feeding mechanism 3 includes a bracket 3-1 and a roller assembly 3-2; the bracket 3-1 is fixed to the surface of the cable trench opening; the roller assembly 3-2 is rotatably connected to the bracket 3-1.

[0043] Furthermore, the roller assembly 3-2 includes at least two cable feeding pulleys 3-3; the two cable feeding pulleys 3-3 are connected one after the other on the bracket 3-1.

[0044] In this embodiment, the cable laying pulley 3-3 is a cylindrical roller made of stainless steel; the projection of the line connecting the center of the cable laying pulley 3-3 and the center of the steering roller 2 in the guide mechanism is collinear with the axis of the cable hole 4.

[0045] In some embodiments, the guiding mechanism includes two sets of steering units; the two sets of steering units are fixedly connected to the inner wall of the cable trench, one above the other; the projection of the center line connecting the two sets of steering units coincides with the axis of the cable hole 4; the distance between the upper steering unit and the inner wall of the cable trench is greater than the distance between the lower steering unit and the inner wall of the cable trench.

[0046] In practical applications, the upper set of steering units is fixed at the level of the cable trench opening, and the lower set of steering units is fixedly connected above the cable hole 4. The distance between the two sets of steering units in the horizontal position is not less than 1m.

[0047] Furthermore, the two sets of steering units have the same structure. Each set of steering units includes a fixing mechanism 1 and a steering roller 2; the steering roller 2 is rotatably connected to the fixing mechanism 1; the fixing mechanism 1 is connected to the inner wall of the cable trench.

[0048] Furthermore, the fixing mechanism 1 includes a support rod 1-1, a connector 1-2, a connecting rod 1-4, and a fixing member 1-3; both ends of the support rod 1-1 are fixed to the side wall of the cable trench by the fixing member 1-3; the connecting rod 1-4 is connected to the support rod 1-1 by the connector 1-2; and the steering roller 2 is sleeved on the support rod 1-1.

[0049] In practical applications, both ends of the support rod 1-1 are fixed to the side wall of the cable trench via fasteners 1-3. In this embodiment, the fasteners 1-3 are expansion bolts. Another connection method is to directly insert one end of the support rod 1-1 into the hole in the side wall, and fix the other end to the side wall of the cable trench via expansion bolts. In this case, for ease of connection and fixation, a rectangular opening is provided at one end of the support rod 1-1. The length and size of the opening are the same as the length of the expansion bolt, facilitating connection and fixation.

[0050] In this embodiment, the steering roller 2 is a cylindrical rubber roller with a hollow interior. The inner diameter of the hollow roller is slightly larger than the diameter of the support rod 1-1, which facilitates the passage of the support rod 1-1 through the steering roller 2 and its rolling under the action of force. The cylindrical rubber roller has high, smooth sides that curve inwards to ensure that the cable remains centered on the rubber roller during cable laying and does not deviate from its intended path.

[0051] To ensure the stability of the fixing mechanism 1, two connecting rods 1-4 are provided. One end of each connecting rod 1-4 is connected to the support rod 1-1 at intervals via a connector 1-2, and the other ends of the two connecting rods 1-4 are respectively fixed in adjacent cable holes located on the side wall of the cable trench where the cable is to be threaded. In this embodiment, the connector 1-2 is a swivel fastener.

[0052] To ensure the safety of cable laying, both support rod 1-1 and connecting rod 1-4 are made of galvanized steel pipe.

[0053] The support rod 1-1 and the connecting rod 1-4 are arranged longitudinally and transversely to improve the stability of the fixing mechanism 1.

[0054] In practical applications, depending on actual needs, two or more steering rollers 2 can be set at intervals on each support rod 1-1, and a cable feeding mechanism 3 is set corresponding to each steering roller 2 so that two or more cables can be fed at the same time, thereby speeding up the cable feeding speed.

[0055] Where there is no conflict, those skilled in the art can combine the relevant technical features in the above examples according to the actual situation to achieve the corresponding technical effects. Specific details of the various combinations will not be elaborated here.

[0056] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0057] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0058] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modifications, equivalent variations, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A device for rapid laying of high-voltage cables for cable laying in a cable trench, in the side wall of which cable holes (4) are made, characterised in that: Comprising A pay-off mechanism (3) is connected on the surface of the cable trench mouth; A guide mechanism is connected on the inner wall of the cable trench; The projection of the line connecting the center of the guide mechanism and the center of the pay-off mechanism (3) coincides with the axis of the cable hole (4).

2. An apparatus for rapid laying of high voltage cables as claimed in claim 1, characterised in that: The pay-off mechanism (3) comprises a support (3-1) and a roller group (3-2); the support (3-1) is fixed on the surface of the cable trench mouth; the roller group (3-2) is connected on the support (3-1).

3. An apparatus for rapid laying of high voltage cable as claimed in claim 2 wherein: The roller group (3-2) comprises at least two cable pay-off pulleys (3-3); the two cable pay-off pulleys (3-3) are rotatably connected on the support (3-1).

4. An apparatus for rapid installation of high voltage cable as claimed in claim 1, wherein: The guide mechanism comprises two sets of steering units; the upper and lower steering units are fixedly connected on the inner wall of the cable trench; the projection of the line connecting the centers of the two sets of steering units coincides with the axis of the cable hole (4); The distance between the upper steering unit and the inner wall of the cable trench is greater than the distance between the lower steering unit and the inner wall of the cable trench.

5. An apparatus for rapid laying of high voltage cables as claimed in claim 4 wherein: The two sets of steering units are the same in structure.

6. A device for rapid laying of high voltage cables as claimed in claim 4 or 5, characterized in that: Each set of steering units comprises a fixing mechanism (1) and a steering roller (2); the steering roller (2) is rotatably connected on the fixing mechanism (1); the fixing mechanism (1) is connected on the inner wall of the cable trench.

7. A device for rapid laying of high voltage cables as claimed in claim 6, characterized in that: The fixing mechanism (1) comprises a support rod (1-1), a connecting piece (1-2), a connecting rod (1-4) and a fixing piece (1-3); the two ends of the support rod (1-1) are fixed on the side wall of the cable trench through the fixing piece (1-3); the connecting rod (1-4) is connected on the support rod (1-1) through the connecting piece (1-2); the steering roller (2) is sleeved on the support rod (1-1).

8. A device for rapid laying of high voltage cables as claimed in claim 7, characterized in that: The support rod (1-1) and the connecting rod (1-4) are both galvanized steel pipes.

9. An apparatus for rapid installation of high voltage cable as claimed in claim 7 wherein: The connecting piece (1-2) is a rotating fastener.

10. An apparatus for rapid installation of high voltage cable as claimed in claim 7 wherein: The fixing piece (1-3) is an expansion bolt.

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