Bypass cable suspender device for distribution network hot-line work and hoisting method

Abstract

The bypass cable suspender device comprises a main pipe, a main hook and a wedge-shaped wire clamp, one end of the main hook is connected with one end of the main pipe through a fixing block, and the other end of the main pipe is provided with a lifting ring and provided with the wedge-shaped wire clamp; the fixing block part comprises an opening piece, a pipe core, a connecting rod and a handle sleeve, the two opposite ends of the fixing block are connected with one end of the main hook and one end of the main pipe respectively, a fixing groove communicated with an inner cavity of the main pipe is formed in the fixing block, and one end of the opening piece extends into the fixing groove and is hinged to the fixing block; the connecting rod is arranged in the fixing groove and hinged to the opening piece and one end of the pipe core arranged in the main pipe in a sleeved mode, and the other end of the pipe core is connected with the handle sleeve arranged outside the main pipe in a sliding and sleeving mode. Opening or closing of the main hook is achieved through sliding of the handle sleeve, suspension work of a bypass cable can be achieved without making contact with a lifting hook and an aerial cable, the distance between the bypass cable and an operation point can be increased, and the electric shock danger is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cable bypass operation, and in particular to a bypass cable hanger device and a hoisting method for live distribution network operation. Background Art

[0002] The most important step in the bypass operation is to lift the bypass cable and fix it on the main line. The traditional lifting method is that the operator uses an insulated boom truck as a carrying platform to pass one end of the insulating rope from the vicinity of the operation point to the ground. The ground staff fixes the cable on the insulating rope, and the operator and the vicinity of the operation point use the insulating rope to lift the bypass cable. However, this method requires the operator to complete it near the operation point, which is dangerous, and the cable may fall off when the insulating rope is tied in a knot. Therefore, it is urgent to develop a bypass cable hoist device for live distribution network operations, so that the transfer process of the bypass cable is firm and reliable and the operator can complete the cable lifting without approaching the live body. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the existing method of lifting the bypass cable is easy to fall off, which poses a great safety hazard.

[0004] In order to solve the above technical problems, the present invention provides a technical solution: a bypass cable hanger device for live distribution network operation, comprising a main pipe, a main hook and a wedge-shaped wire clamp, wherein: the main hook is a U-shaped structure, one end of which is connected to one end of the main pipe through the wedge-shaped wire clamp, and the other end of the main pipe is provided with a wedge-shaped wire clamp; The wedge-shaped wire clamp includes a wedge-shaped wire clamp and a clamping plate, the opposite two ends of the fixed block are respectively connected to one end of the main hook and one end of the main pipe, the fixed block is provided with a fixing groove connected to the inner cavity of the main pipe, one end of the opening piece extends into the fixing groove and is hinged to the fixed block, the connecting rod is provided in the fixing groove and is respectively hinged to the opening piece and one end of the tube core sleeved in the main pipe, the other end of the tube core is connected to the handle cover slidably sleeved outside the main pipe, and under the action of the handle cover, the tube core is reciprocated along the axis of the main pipe, and the main hook is opened and closed by driving the opening piece to rotate through the connecting rod.

[0005] Furthermore, a first tube core sleeve, a second tube core sleeve and a spring are arranged in the main pipe at the handle cover, the first tube core sleeve is fixed on the inner wall of the main pipe, the second tube core sleeve is slidably arranged in the main pipe, and the second tube core sleeve is connected to the handle cover through a connecting rod passing through the main pipe, and the other end of the tube core slides through the first tube core sleeve and the spring and then presses into the limiting groove on the second tube core sleeve, and is detachably connected to the second tube core sleeve.

[0006] Furthermore, the two opening pieces sandwich the fixing block in the middle, and the hinge axis through which the connecting rod is hinged to the opening piece passes through the arc hole provided on the fixing block.

[0007] Furthermore, a plastic part is fixed on the main pipe via a clamp.

[0008] Furthermore, two ends of the main pipe are detachably connected to the fixing block and the lifting ring.

[0009] In order to solve the above technical problems, another technical solution provided by the present invention is: a method for hoisting a bypass cable for live working in a distribution network, the steps of which are: First, fix the bypass cable with a wedge-shaped wire clamp, then tie the rope to the plastic part on the above-mentioned cable boom device, hang the crane hook on the lifting ring, and lift the cable boom device. Pull the cable boom device to the boom truck through the rope, hold the handle cover and the main pipe, slide the handle cover upward to rotate the opening piece to open the main hook, compress the spring, and hang the main hook on the unstripped part of the bypass cable. After removing the tension applied to the handle cover, reset the handle cover and the opening piece under the action of the spring, so that the handle cover slides downward and drives the opening piece to rotate and close the main hook, and then connect the overhead cable and the bypass cable.

[0010] The beneficial effects of the present invention are: The present application achieves the convenience of hanging and lifting the bypass cable through the cooperation between the main pipe, the main hook and the wedge-shaped wire clamp, can bear most of the weight of the bypass cable, reduce the stress on the connection point, prevent the connection point from falling off, and is easy to operate. The main hook can be opened or closed by sliding the handle cover, and the bypass cable can be suspended without contacting the hook and the overhead cable, which can increase the distance from the working point and reduce the risk of electric shock. The wedge-shaped wire clamp fixes the cable firmly and reliably, avoids falling off during the transmission process, and greatly improves the safety of the working site. The wedge-shaped wire clamp is movably connected to the main pipe and suspended by the hook, which can reduce the violent swing of the overhead cable caused by the swing of the bypass cable.

[0011] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only two of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a schematic diagram of the structure of this application.

[0014] Figure 2 This is a cross-sectional view of the present application.

[0015] In the figure, 1-main pipe, 2-main hook, 3-lifting ring, 4-fixing block, 5-opening piece, 6-tube core, 7-connecting rod, 8-handle cover, 9-fixing groove, 10-first tube core sleeve, 11-second tube core sleeve, 12-spring, 13-arc hole, 14-plastic part, 15-wedge-shaped wire clamp, 16-splint. DETAILED DESCRIPTION

[0016] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0017] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0018] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information. Example

[0019] like Figure 1-2 As shown, a bypass cable hanging rod device for live distribution network operation includes a main pipe 1, a main hook 2 and a wedge-shaped wire clamp. The main hook 2 is a U-shaped structure, one end of which is connected to one end of the main pipe 1 through a fixing block 4. The other end of the main pipe 1 is provided with a lifting ring 3, which is connected to the wedge-shaped wire clamp 15. The main pipe 1 replaces the insulating rope to ensure the distance between the worker and the live wire during operation, thereby reducing the risk of electric shock. The mechanical structure in the fixed block 4 includes an opening piece 5, a tube core, a connecting rod 7 and a handle cover 8. The opposite two ends of the fixed block 4 are respectively connected to one end of the main hook 2 and one end of the main pipe 1. A fixing groove 9 connected to the inner cavity of the main pipe 1 is provided in the fixed block 4. One end of the opening piece 5 extends into the fixing groove 9 and is hinged to the fixed block 4. The connecting rod 7 is provided in the fixing groove 9 and is respectively hinged to the opening piece 5 and one end of the tube core sleeved in the main pipe 1. The other end of the tube core is connected to the handle cover 8 slidably sleeved outside the main pipe 1, and under the action of the handle cover 8, the tube core is reciprocated along the axis of the main pipe 1, and the opening piece 5 is driven to rotate by the connecting rod 7 to realize the opening and closing of the main hook 2. The opening piece 5 can be driven to rotate up and down by sliding the handle cover 8 to push and pull it up and down to realize the opening and closing of the main hook 2.

[0020] Among them, a first tube core sleeve 10, a second tube core sleeve 11 and a spring 12 are arranged in the main tube 1 at the handle sleeve 8, the first tube core sleeve 10 is fixed on the inner wall of the main tube 1, the second tube core sleeve 11 is slidably arranged in the main tube 1, and the second tube core sleeve 11 is connected to the handle sleeve 8 through a connecting rod penetrating the main tube 1, and the other end of the tube core slides through the first tube core sleeve 10 and the spring 12 and then presses into the limiting groove on the second tube core sleeve 11, and is detachably connected to the second tube core sleeve 11; the grooves on the first tube core sleeve 10 and the second tube core sleeve 11 guide the tube core to prevent the tube core from shaking left and right. Since the first tube core sleeve 10 is fixedly connected to the inner wall of the main tube 1, under the action of the spring 12, the second tube core sleeve 11 and the tube core are always subjected to a downward force, which is transmitted to the opening piece 5 through the connecting rod 7, so that the opening piece 5 is pressed against the main hook 2 to ensure the closing stability of the main hook 2.

[0021] The two ends of the main pipe 1 are detachably connected to the fixing block 4 and the lifting ring 3, so that the main pipe 1 of different lengths can be replaced as needed. After the lifting ring 3 is removed, the second core sleeve 11, the spring 12 and the handle sleeve 8 can be disassembled and assembled. Example

[0022] like Figure 1-2 As shown, this embodiment is obtained by adding technical features such as an arc hole 13 on the basis of the first embodiment. The remaining technical features are the same as those of the first embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the first embodiment is that: the two opening pieces 5 clamp the fixed block 4 in the middle, and the hinge axis of the connecting rod 7 and the opening piece 5 is hinged to pass through the arc hole 13 set on the fixed block 4.

[0023] In this embodiment, the arc-shaped hole 13 limits the movement trajectory of the hinge shaft, so that the tube core pushes the opening member 5 to rotate through the connecting rod 7. Example

[0024] like Figure 1-2As shown, this embodiment is obtained by adding technical features such as a plastic part 14 on the basis of the second embodiment. The remaining technical features are the same as those of the first embodiment, and the similarities are not repeated here. Among them, the difference between this embodiment and the first embodiment is that a plastic part 14 is fixed to the main pipe 1 by a clamp.

[0025] In this embodiment, a through hole is provided on the plastic part 14, and its function is to be fixed on the main pipe 1 and provide a binding part, so that the operator can use a rope to pull it to the bucket arm truck.

[0026] The process of using the overall technical solution formed by the above-mentioned embodiments is another technical solution disclosed in the present application, which is: a method for lifting bypass cables for live distribution network operations. After the operator reaches the working position through a boom truck, he uses a rope and the red plastic part 14 on the main pipe 1 to pull the cable hoist device onto the boom truck, holds the lower part of the main pipe 1, opens the main hook 2 through the sliding handle cover 8, and then hangs the hook on the unpeeled part of the overhead cable. Then, use the sliding handle cover 8 to close the main hook 2, lift the bypass cable through the wedge-shaped wire clamp 15, and then connect the overhead cable and the bypass cable.

[0027] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A bypass cable hanger device for live distribution network operation, comprising a main pipe, a main hook and a wedge-shaped wire clamp, characterized in that: The main hook is a U-shaped structure, one end of which is connected to one end of the main pipe through a fixing block, and the other end of the main pipe is provided with a lifting ring and a wedge-shaped wire clamp; The wedge-shaped wire clamp includes a wedge-shaped wire clamp and a clamping plate, the opposite two ends of the fixed block are respectively connected to one end of the main hook and one end of the main pipe, the fixed block is provided with a fixing groove connected to the inner cavity of the main pipe, one end of the opening piece extends into the fixing groove and is hinged to the fixed block, the connecting rod is provided in the fixing groove and is respectively hinged to the opening piece and one end of the tube core sleeved in the main pipe, the other end of the tube core is connected to the handle cover slidably sleeved outside the main pipe, and under the action of the handle cover, the tube core is reciprocated along the axis of the main pipe, and the main hook is opened and closed by driving the opening piece to rotate through the connecting rod.

2. A bypass cable hanger device for live distribution network work according to claim 1, characterized in that: A first tube core sleeve, a second tube core sleeve and a spring are arranged in the main pipe at the handle cover, the first tube core sleeve is fixed on the inner wall of the main pipe, the second tube core sleeve is slidably arranged in the main pipe, and the second tube core sleeve is connected to the handle cover through a connecting rod passing through the main pipe, and the other end of the tube core slides through the first tube core sleeve and the spring and then presses into the limiting groove on the second tube core sleeve, and is detachably connected to the second tube core sleeve.

3. A bypass cable hanger device for live distribution network working according to claim 1, characterized in that: The two opening pieces clamp the fixing block in the middle, and the hinge shaft through which the connecting rod is hinged to the opening piece passes through the arc hole arranged on the fixing block.

4. A bypass cable hanger device for live distribution network work according to claim 1, characterized in that: A plastic part is fixed on the main pipe via a clamp.

5. A bypass cable hanger device for live distribution network work according to claim 1, characterized in that: The two ends of the main pipe are detachably connected to the fixing block and the lifting ring.

6. A method for hoisting a bypass cable for live working in a distribution network based on the cable hanger device according to any one of claims 1 to 5, the steps of which are: First, fix the bypass cable with a wedge-shaped wire clamp, tie the rope to the plastic part on the above-mentioned cable hanger device, hang the crane hook on the lifting ring, and lift the cable hanger device. Pull the cable hanger device to the boom truck through the rope, hold the handle cover and the main pipe, slide the handle cover upward to rotate the opening piece to open the main hook, compress the spring, and hang the main hook on the unstripped part of the bypass cable. After removing the tension applied to the handle cover, reset the handle cover and the opening piece under the action of the spring, so that the handle cover slides downward and drives the opening piece to rotate and close the main hook, and then connect the overhead cable and the bypass cable.

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