A cable pay-off device

Abstract

The utility model provides a kind of cable pay-off device including base, base top is equipped with frame, frame is rotatably installed with upper rotary rod and lower rotary rod being parallel with each other and being horizontally distributed, upper rotary rod is equipped with upper guide pulley, lower rotary rod is equipped with lower guide pulley being used in cooperation with upper guide pulley, the wheel groove of upper guide pulley and the wheel groove of lower guide pulley combination constitute the limiting slot of accommodating cable, the gap S between upper guide pulley and lower guide pulley is less than cable diameter, to avoid cable from limiting slot slip out.Frame is supported on ground by base;Base is used as supporting member, while being equipped with certain mass as counterweight, to prevent the toppling of frame;When construction, base is placed at cable well entrance, then one end of cable passes through limiting slot, at this time, the circumference of cable is limited in limiting slot, pull cable, cable protection layer and upper guide pulley and / or lower guide pulley constitute rolling contact, to avoid the scratch and cutting of cable well entrance edge.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically a cable laying device. Background Technology

[0002] Industries such as power and telecommunications rely heavily on cables for energy transmission and information delivery. Cable laying is a crucial and labor-intensive part of engineering construction. With the increase in voltage levels and capacity requirements, the conductor cross-sectional area and outer diameter of modern power cables (especially medium and high voltage power cables) are constantly increasing, resulting in a significant increase in their weight per unit length.

[0003] During cable laying, especially during traction laying (such as using equipment like winches to drag cables), cables are subjected to enormous tensile forces, frictional forces, and lateral pressures. When cables pass through corners, bends, pipe openings, support edges, cable well entrances, or areas with protrusions, their outer sheath (protective layer) is extremely prone to severe friction, scratching, or even being punctured or cut by sharp edges against these rigid structures (such as metal pipe openings, concrete edges, angle steel supports, cable tray corner brackets, etc.). Utility Model Content

[0004] This application provides a cable laying device in which the cable protective layer makes rolling contact with the upper guide wheel and / or lower guide wheel during operation, thus avoiding cable scratches and cuts caused by sharp edges. The purpose of this utility model is achieved as follows: A cable laying device includes a base, a frame mounted on the top of the base, and an upper rotating rod and a lower rotating rod that are parallel to each other and horizontally distributed on the frame. The upper rotating rod is provided with an upper guide wheel, and the lower rotating rod is provided with a lower guide wheel that cooperates with the upper guide wheel. The groove of the upper guide wheel and the groove of the lower guide wheel combine to form a limiting groove for accommodating the cable.

[0005] The frame includes an upper frame and a lower frame detachably connected to the upper frame. The base is installed at the bottom of the lower frame, and the upper rotating rod and the lower rotating rod are respectively installed on the upper frame and the lower frame.

[0006] The two ends of the upper frame are respectively hinged to the two ends of the lower frame by pins, and the axis of the pins is perpendicular to the axis of the upper rotating rod.

[0007] The upper guide wheel and the lower guide wheel are made of EPDM rubber.

[0008] There are four upper guide wheels and four lower guide wheels.

[0009] The grooves of the upper guide wheel and the lower guide wheel are either V-shaped or U-shaped.

[0010] The upper rotating rod and the lower rotating rod are connected to the frame via bearings.

[0011] The base is provided with mounting holes.

[0012] This utility model cable laying device includes a base, on top of which a frame is mounted. Parallel and horizontally distributed upper and lower rotating rods are rotatably mounted on the frame. The upper rotating rod has an upper guide wheel, and the lower rotating rod has a lower guide wheel that cooperates with the upper guide wheel. The grooves of the upper and lower guide wheels combine to form a limiting groove for accommodating the cable. The gap S between the upper and lower guide wheels is smaller than the cable diameter to prevent the cable from slipping out of the limiting groove. The frame is supported on the ground by the base. The base acts as a support and also has a certain mass as a counterweight to prevent the frame from tipping over. During construction, the base is placed at the cable well entrance, and then one end of the cable passes through the limiting groove. At this time, the circumference of the cable is limited within the limiting groove. Pulling the cable causes the cable protective layer to make rolling contact with the upper and / or lower guide wheels, thereby preventing scratches and cuts from the edges of the cable well entrance. The two ends of the upper frame are hinged to the two ends of the lower frame by pins. The axis of the pins is perpendicular to the axis of the upper rotating rod. The upper frame and the lower frame are connected by hinges to form a structure that is easy to open and close, making it convenient for placing and retrieving cables. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 A schematic diagram of a cable laying device provided for an embodiment of this utility model; Figure 2 A front view of a cable laying device provided in an embodiment of this utility model; Figure 3 Provided for the embodiments of this utility model Figure 2 Enlarged view of part A in the middle.

[0015] In the diagram: base 1, mounting hole 11, frame 2, upper frame 21, lower frame 22, upper rotating rod 3, lower rotating rod 4, upper guide wheel 5, lower guide wheel 6, pin 7, limit groove 8. Detailed Implementation

[0016] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0017] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: See appendix Figure 1-3A cable laying device includes a base 1, a frame 2 mounted on top of the base 1, and an upper rotating rod 3 and a lower rotating rod 4 rotatably mounted on the frame 2, which are parallel to each other and horizontally distributed. The upper rotating rod 3 has an upper guide wheel 5, and the lower rotating rod 4 has a lower guide wheel 6 that cooperates with the upper guide wheel 5. The grooves of the upper guide wheel 5 and the lower guide wheel 6 combine to form a limiting groove 8 for accommodating the cable. The gap S between the upper guide wheel 5 and the lower guide wheel 6 is smaller than the cable diameter to prevent the cable from slipping out of the limiting groove 8. The frame 2 is supported on the ground by the base 1; the base 2 serves as a support and is also equipped with a certain mass as a counterweight to prevent the frame from tipping over. During construction, the base 1 is placed at the entrance of the cable well, and then one end of the cable passes through the limiting groove 8. At this time, the circumference of the cable is limited within the limiting groove 8. Pulling the cable causes the cable protective layer to make rolling contact with the upper guide wheel and / or the lower guide wheel, thereby preventing scratches and cuts from the edges of the cable well entrance.

[0018] In one embodiment, the frame 2 includes an upper frame 21 and a lower frame 2 detachably connected to the upper frame 21. The base 1 is installed at the bottom of the lower frame 2. The upper rotating rod 3 and the lower rotating rod 4 are respectively installed on the upper frame 21 and the lower frame 22. By setting the frame 2 into two detachable parts, the device can be easily transferred and transported.

[0019] In one embodiment, the two ends of the upper frame 21 are respectively hinged to the two ends of the lower frame 22 via pins 7. The axis of the pins 7 is perpendicular to the axis of the upper rotating rod 3. The upper frame 21 and the lower frame 22 are connected by hinges to form a structure that is easy to open and close, making it convenient for placing and retrieving cables.

[0020] In one embodiment, the upper guide wheel 5 and the lower guide wheel 6 are made of EPDM rubber, which has the characteristics of strong corrosion resistance, low water absorption and insulation.

[0021] In one implementation, in this embodiment, there are four upper guide wheels 5 and four lower guide wheels 6 to meet the requirements for laying three-phase four-wire cables.

[0022] In one embodiment, the grooves of the upper guide wheel 5 and the lower guide wheel 6 are either V-shaped or U-shaped.

[0023] In one embodiment, the upper rotating rod 3 and the lower rotating rod 4 are connected to the frame 2 via bearings.

[0024] As one implementation method, in this embodiment, in order to make the device of this application more stable and prevent it from tilting, the base 1 is provided with mounting holes 11, and anchor bolts are installed in the mounting holes to meet the installation and fixing requirements at different positions.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable laying device, characterized in that: The device includes a base, on the top of which is a frame. On the frame are rotatably mounted an upper rotating rod and a lower rotating rod that are parallel to each other and horizontally distributed. The upper rotating rod is provided with an upper guide wheel, and the lower rotating rod is provided with a lower guide wheel that cooperates with the upper guide wheel. The groove of the upper guide wheel and the groove of the lower guide wheel combine to form a limiting groove for accommodating a cable.

2. The cable laying device according to claim 1, characterized in that: The frame includes an upper frame and a lower frame detachably connected to the upper frame. The base is installed at the bottom of the lower frame, and the upper rotating rod and the lower rotating rod are respectively installed on the upper frame and the lower frame.

3. The cable laying device according to claim 2, characterized in that: The two ends of the upper frame are respectively hinged to the two ends of the lower frame by pins, and the axis of the pins is perpendicular to the axis of the upper rotating rod.

4. The cable laying device according to claim 1, characterized in that: The upper guide wheel and the lower guide wheel are made of EPDM rubber.

5. The cable laying device according to claim 1, characterized in that: There are four upper guide wheels and four lower guide wheels.

6. The cable laying device according to claim 1, characterized in that: The grooves of the upper guide wheel and the lower guide wheel are either V-shaped or U-shaped.

7. The cable laying device according to claim 1, characterized in that: The upper rotating rod and the lower rotating rod are connected to the frame via bearings.

8. The cable laying device according to claim 1, characterized in that: The base is provided with mounting holes.

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