A device and method for quickly laying overhead cables

Abstract

The present invention relates to a rapid laying device for overhead cables, comprising a frame structure and at least two extension brackets arranged on one side of the frame structure; a walking mechanism or a connecting mechanism connected to a walking tool is arranged at the lower part of the frame structure to drive the frame structure to move forward; the setting heights of the extension brackets are different, and guide wheels are arranged at the extension ends, and the extension brackets include a high bracket and a low bracket, the low bracket is arranged at the front side of the moving direction of the frame structure, and the high bracket is arranged at the rear side of the moving direction of the frame structure, a top beam is arranged at the top of the frame structure, and side beams are arranged on the left and right sides, the top beam and the side beams are both arranged along the moving direction of the frame structure, the high bracket is connected to the top beam, and the low bracket is connected to the side beam. The laying device and method of the present invention can improve the installation speed during cable laying and reduce the labor intensity of workers.

Description

Technical Field

[0001] The present invention relates to the technical field of cable laying, and in particular to a device and method for quickly laying an overhead cable. Background Art

[0002] Overhead cable (full name: overhead insulated cable) is an overhead conductor equipped with an insulating layer and a protective sheath. It is a special cable manufactured using a production process similar to that of cross-linked cables. It is a new way of transmitting electricity between overhead conductors and underground cables.

[0003] Cable laying refers to the process of laying and installing cables along the surveyed route to form a cable line. According to the application scenario, it can be divided into several laying methods such as overhead, underground (pipeline and direct burial), underwater, wall and tunnel. Reasonable selection of cable laying method is very important to ensure the transmission quality, reliability and construction and maintenance of the line.

[0004] After the tunnel expressway bridge is connected, the laying of long-distance straight-line cables (especially the laying of large-sized long-distance cables) is one of the key tasks in the construction. In the existing technology, when laying cables in tunnels, especially the laying of long-distance straight-line cables along tunnel expressways, the conventional method uses intensive manual labor combined with lifting poles to alternately push and place them on the bridge for laying, which is time-consuming and labor-intensive. Especially when enlarging the size of the cable, the cable is heavy and it is difficult for manpower to lift the cable for a long time, which is beyond their ability. The entire laying process takes a long time and has low efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a device and method for quickly laying overhead cables in straight sections of tunnel expressways, which can improve installation speed and reduce labor intensity.

[0006] The above-mentioned object of the present invention is achieved through the following technical solutions:

[0007] A device for rapid laying of overhead cables comprises a frame structure and at least two extension brackets arranged on one side of the frame structure; a walking mechanism and / or a connecting mechanism connected to a walking tool is arranged at the lower part of the frame structure to drive the frame structure to move forward; the extension brackets are arranged at different heights, and guide wheels are arranged at the extension ends.

[0008] By adopting the above technical solution, the frame structure is used as the supporting body, and the walking mechanism or walking tool drives the frame structure to move. As the frame structure moves forward, the extension bracket gradually lifts the cables, and the cables gradually climb up and are guided in the direction of the cable bridge by the guide wheels on the extension bracket and pushed into the cable bridge. Gradually, all the cables are laid in the cable bridge, and the laying of the cables can be completed quickly without the need for long-term manpower lifting.

[0009] The present invention is further configured as follows: the extension bracket includes a high bracket and a low bracket, the low bracket is arranged at the front side of the moving direction of the frame structure, and the high bracket is arranged at the rear side of the moving direction of the frame structure.

[0010] By adopting the above technical solution, the heights of the extension brackets are different. The low bracket is on the front side, which gradually lifts up the cables on the ground, and the high bracket is on the back side, which further lifts the cables above the cable tray and pushes them into the cable tray. The gradual rise of the cables reduces the pressure on a single extension bracket and makes the lifting process smoother.

[0011] The present invention is further configured as follows: a top beam is arranged on the top of the frame structure, and side beams are arranged on the left and right sides, the top beam and the side beams are arranged along the moving direction of the frame structure, the high bracket is connected to the top beam, and the low bracket is connected to the side beam.

[0012] By adopting the above technical solution, the setting of the top beam and the side beam can reinforce the frame structure and prevent the frame structure from deformation when bearing larger-sized cables; the high bracket is connected to the top beam, which can not only enhance the fixing strength of the high bracket, but also increase the fixing height of the high bracket.

[0013] The present invention is further configured as follows: the middle position of the high bracket is connected to the top beam, the extended end is tilted upward, and the other end is fixed to a vertical pole arranged on the top beam and extending downward.

[0014] By adopting the above technical solution, the high bracket is set at an angle and two fixing points are set, so it can be fixed more firmly and at the same time the lifting height is greater, so that a higher cable tray can be laid.

[0015] The present invention is further configured such that the extended end of the high bracket is inclined toward the rear end of the moving direction of the frame structure.

[0016] By adopting the above technical solution, the lifting span of the cable is increased, so that the cable has less bending during the lifting process, the friction with the guide wheel during laying is smaller, and the cable laying is smoother.

[0017] The present invention is further configured as follows: the middle position of the low bracket is connected to the side beam, the extended end extends horizontally, and the other end is fixed to a vertical pole arranged on the top beam and extending downward.

[0018] By adopting the above technical solution, the low bracket extends laterally so that the height of the extended end is lower, making it easier to lift the cables. The low bracket is also fixed at two points, which increases the structural strength and support strength of the low bracket.

[0019] The present invention is further configured such that the extended end of the low bracket is inclined toward the front end in the moving direction of the frame structure.

[0020] By adopting the above technical solution, the lifting span of the cable is further increased, so that the cable has a smaller slope and a smaller curvature during the lifting process, the rising process is smoother, the friction with the guide wheel during laying is smaller, and the cable laying is smoother.

[0021] The present invention is further configured as follows: the device also includes a bracket support structure, and the bracket support structure includes support rods arranged between the high bracket and the frame structure, between the low bracket and the frame structure, and between the high bracket and the low bracket.

[0022] By adopting the above technical solution and setting the support rod, the support strength of the high bracket and the low bracket is increased, and the structural strength of the high bracket and the low bracket is also improved. The whole device is not easy to deform and has a stronger bearing capacity.

[0023] The present invention is further configured as follows: the walking mechanism is a walking wheel arranged on the bottom surface of the frame structure, and the connecting mechanism is a lifting limit groove arranged on the bottom surface of the frame structure.

[0024] By adopting the above technical solution, the setting of the walking wheels makes it easy to move the entire device and to carry it. If the height of the cable tray to be laid is low, the device can be directly pushed for laying; the setting of the lifting limit groove makes it easy to combine the device with a forklift, and the device is lifted by the forklift. The lifting height range is large and it is suitable for the laying of higher cable trays.

[0025] A method for rapid laying of overhead cables, the steps of which are as follows: laying the cables on the ground along the arrangement direction of the cable bridge; fixing the starting section of the cables in the cable bridge, moving the device to the starting section of the cables, and overlapping the starting section of the cables on the guide wheels on the high bracket and the low bracket in sequence; lifting the high bracket and the low bracket upwards until the height of the high bracket is higher than the height of the cable bridge, and the extended end of the high bracket is located above the cable bridge; moving the device forward, the low bracket continuously lifts the cables, and the high bracket continuously pushes the cables sideways to guide them into the cable bridge.

[0026] By adopting the above technical solution, the cables can be gradually raised and pushed in the direction of the cable tray, so that the cables can be gradually laid in the cable tray. The whole process is fast and does not require much manpower.

[0027] In summary, the beneficial technical effects of the present invention are:

[0028] 1. The device of the present invention has a simple structure and is easy to manufacture. It can be manufactured on the spot using materials at the construction site, and the manufacturing and use costs are low.

[0029] 2. When using this device to lay cables, as the device continues to move, the cables are continuously lifted, and no manpower is needed to lift them, which reduces the labor intensity of workers and saves manpower. At the same time, the device can move uninterruptedly, and the laying process is continuous and safe. When laying large-sized cables, the entire device is more efficient and can save more manpower.

[0030] 3. The device has a wide range of cable laying heights. When the laying height is low, the device can be directly pushed for laying. When the laying height is high, the device can be lifted by tools such as forklifts to enable it to be laid at a greater height. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the laying device of the present invention.

[0032] Figure 2 It is a top view of the laying device of the present invention.

[0033] Figure 3 It is a left side view of the laying device of the present invention.

[0034] In the figure, 1. frame structure, 11. top beam, 12. side beam, 13. vertical pole, 2. extension bracket, 21. high bracket, 22. low bracket, 3. guide wheel, 4. support rod, 41. elevated support rod, 42. low support rod, 43. connecting support rod, 5. walking wheel, 6. lifting limit groove. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0036] Reference Figure 1 , is a rapid laying device for overhead cables disclosed in the present invention, comprising a frame structure 1, an extension bracket 2 and a guide wheel 3, wherein the extension bracket 2 is arranged on one side of the frame structure 1, the number is at least two, and each extension bracket 2 is arranged at a different height, and the guide wheel 3 is installed at the extension end of the extension bracket 2.

[0037] The frame structure 1 is a three-dimensional structure welded by two rectangular frames and four columns. The columns are fixed at the four corners of the two rectangular frames. The lower part of the frame structure 1 is provided with a walking mechanism and / or a connecting mechanism connected to a walking tool to drive the frame structure to move forward. Among them, the walking mechanism is provided as a walking wheel 5 on the bottom surface of the frame structure 1. The four walking wheels 5 are respectively fixed on the bottom surface of the frame structure 1. The connecting mechanism is a lifting limit groove 6 provided on the bottom surface of the frame structure 1. The four lifting limit grooves 6 are welded and fixed on the long side plate on the bottom surface of the frame structure 1. The front and rear sides are opposite to each other. The lifting limit grooves 6 cooperate with the insertion rod of the forklift, and the device is lifted by the forklift. The walking wheel 5 and the lifting limit groove 6 can be provided separately on the frame structure 1, or they can be fixed on the frame structure 1 at the same time. The two lifting limit grooves 6 are located between the two walking wheels 5. When the walking wheel 5 contacts the ground, the lifting limit groove 6 is suspended and does not contact the ground.

[0038] In this embodiment, two extension brackets 2 are provided, and the two extension brackets 2 are provided on the same short side of the frame structure 1. The two extension brackets 2 are provided at different heights, and are divided into a high bracket 21 and a low bracket 22 according to the height difference, and both the high bracket 21 and the low bracket 22 are hollow tubes. The low bracket 22 is provided at the front side of the moving direction of the frame structure 1, and the extension end of the low bracket 22 is horizontally inclined toward the front end of the moving direction of the frame structure 1; the high bracket 21 is provided at the rear side of the moving direction of the frame structure 1, and the extension end of the high bracket 21 is inclined toward the rear end of the moving direction of the frame structure 1.

[0039] A top beam 11 is provided at the top of the frame structure 1, and side beams 12 are provided on the left and right sides. Both the top beam 11 and the side beams 12 are extended along the moving direction of the frame structure 1. The high bracket 21 is connected to the top beam 11, welded to the top beam 11 at the proximal end in the middle position, and overlapped on the extended end of the column of the frame structure 1. A channel steel is welded on the top beam 11 to support and fix the high bracket 21 from the side. The extended end of the high bracket 21 is tilted upward, and the other end is welded downward and fixed to the vertical pole 13 extending downward from the distal top beam 11. The vertical pole 13 is made of channel steel and is fixed vertically downward on the top beam 11. The high bracket 21 is arranged with the extended end tilted upward, and two fixing points are set. One support point can fix it more firmly, and at the same time, the cable is lifted to a greater height, so that a higher cable tray can be laid. The low bracket 22 is connected to the side beam 12. The middle position of the low bracket 22 is welded to the upper side beam 12. The extended end extends horizontally, and the other end is welded and fixed to the vertical pole 13 extending downward from the proximal top beam 11. The extended end of the low bracket 22 is relatively low in height, making it easier to lift the cables on the ground. The low bracket 22 is also fixed at two points, which increases the structural strength and support strength of the low bracket 22.

[0040] The extended ends of the high bracket 21 and the low bracket 22 are both provided with guide wheels 3, and the guide wheels 3 are detachably connected to the high bracket 21 and the low bracket 22. The rotating shaft of the guide wheel 3 is a hollow tube, which is sleeved on the high bracket 21 and the low bracket 22, and the hollow tube is tightly fixed to the high bracket 21 and the low bracket 22 by bolts. The bolts abut against the outer walls of the high bracket 21 and the low bracket, so that the guide wheel 3 can be adjusted along the high bracket 21 and the low bracket 22.

[0041] Reference Figure 2 and 3 The device of the present invention also includes a support structure, which includes support rods 4 arranged between the high support 21 and the frame structure 1, between the low support 22 and the frame structure 1, and between the high support 21 and the low support 22. The high support rod 41 is arranged between the high support 21 and the frame structure 1, one end of the high support rod 41 is welded to the extended end of the high support 21, and the other end is welded downward and fixed to the side beam 12 located at the lower part of the side of the frame structure 1. The low support rod 42 is arranged between the low support 22 and the frame structure 1, one end of the low support rod 42 is welded to the middle part of the low support 22, and the other end is welded and fixed to the side beam 12 located at the upper part of the side of the frame structure 1. The connecting support rod 43 is arranged between the high support 21 and the low support 22, and the two ends of the connecting support rod 43 are respectively welded to the extended ends of the high support 21 and the low support 22, and the welding point is kept at a certain distance from the end of the extended end, so that the guide wheel 3 can have a long enough space for movement.

[0042] The present invention discloses a method for quickly laying overhead cables using the device of the present invention, the steps of which are as follows:

[0043] Lay the cables on the ground along the layout direction of the cable tray;

[0044] Fix the starting section of the cable in the cable bridge, move the device to the starting section of the cable, and overlap the starting section of the cable on the guide wheels 3 on the high bracket 21 and the low bracket 22 in sequence;

[0045] Lift the device upward, driving the high bracket 21 and the low bracket 22 until the height of the high bracket 21 is higher than the height of the cable tray, and the extended end of the high bracket 21 is located above the cable tray;

[0046] The device is moved forward, the low bracket 22 continuously lifts the cables, and the high bracket 21 continuously pushes the cables sideways and guides them into the cable tray.

[0047] The frame structure 1 serves as the supporting body, and the walking mechanism or walking tool drives the frame structure 1 to move. As the frame structure 1 moves forward, the extension bracket 2 gradually picks up the cables, and the cables gradually climb up and are guided toward the cable bridge by the guide wheels 3 on the extension bracket 2 and pushed into the cable bridge. Gradually, all the cables are laid in the cable bridge, and the laying of the cables can be completed quickly without the need for long-term manpower lifting.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rapid laying device for overhead cables, characterized in that: It comprises a frame structure (1) and at least two extension brackets (2) arranged on one side of the frame structure (1); The lower part of the frame structure (1) is provided with a walking mechanism and / or a connecting mechanism connected to a walking tool, driving the frame structure (1) to move forward; The two extension brackets (2) are arranged at different heights, and guide wheels (3) are arranged at the extension ends. The two extension brackets (2) are divided into a high bracket (21) and a low bracket (22) according to the height difference. The low bracket (22) is arranged at the front side of the moving direction of the frame structure (1), and the extension end of the low bracket (22) is horizontally inclined toward the front end of the moving direction of the frame structure (1), and the high bracket (21) is arranged at the rear side of the moving direction of the frame structure (1), and the extension end of the high bracket (21) is upwardly inclined toward the rear end of the moving direction of the frame structure (1); The frame structure (1) is provided with a top beam (11) at the top, and side beams (12) are provided on the left and right sides; the top beam (11) and the side beams (12) are both provided along the moving direction of the frame structure (1); the high bracket (21) is connected to the top beam (11), and the low bracket (22) is connected to the side beam (12).

2. The device for rapid laying of overhead cables according to claim 1, characterized in that: The middle position of the high bracket (21) is connected to the top beam (11), the extended end is tilted upward, and the other end is fixed to a vertical pole (13) arranged on the top beam (11) and extending downward.

3. The device for rapid laying of overhead cables according to claim 1, characterized in that: The middle position of the low bracket (22) is connected to the side beam (12), an extended end extends horizontally, and the other end is fixed to a vertical pole (13) arranged on the top beam (11) and extending downward.

4. The device for rapidly laying overhead cables according to claim 1, characterized in that: The device also includes a support structure, which includes support rods (4) arranged between the high support (21) and the frame structure (1), between the low support (22) and the frame structure (1), and between the high support (21) and the low support (22).

5. The device for rapid laying of overhead cables according to claim 1, characterized in that: The walking mechanism is a walking wheel (5) arranged on the bottom surface of the frame structure (1), and the connecting mechanism is a lifting limit groove (6) arranged on the bottom surface of the frame structure (1).

6. A method for rapid laying of overhead cables, characterized in that: A device for quickly laying an overhead cable applicable to any one of claims 1 to 5, comprising the following steps: laying the cable on the ground along the arrangement direction of the cable bridge; fixing the starting section of the cable in the cable bridge, moving the device for quickly laying the overhead cable to the starting section of the cable, and overlapping the starting section of the cable on the guide wheels (3) on the high bracket (21) and the low bracket (22) in sequence; lifting the high bracket (21) and the low bracket (22) upwards until the height of the high bracket (21) is higher than the height of the cable bridge, and the extension end of the high bracket (21) is located above the cable bridge; moving the device for quickly laying the overhead cable forward, the low bracket (22) continuously lifting the cable, and the high bracket (21) continuously pushing the cable sideways and guiding it into the cable bridge.

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