Anti-falling hanging and dismounting transmission device for high-altitude operation of overhead transmission line

Abstract

The present application relates to the technical field of delivery device, disclose a kind of anti-falling hanging and dismounting delivery device for overhead transmission line high-altitude operation, including mobile body and swing body, the lower part of mobile body is equipped with delivery pulley, and delivery pulley is equipped with traction rope;The upper portion of mobile body has bending hook, and the wire slot of bending hook is formed by surrounding lower opening and accommodating wire, and bending hook has vacant arrangement outer extension end, and outer extension end is connected with control rope across wire;The lower part of swing body is hinged with the bending hook, and the lower part of swing body is equipped with the limiting strip extending towards mobile body and drive strip;When pulling control rope, wire enters wire slot by the lower opening of wire slot, and abuts drive strip to drive swing body to swing towards mobile body, and limiting strip swings into wire slot, and is placed below wire;Swing body is connected with dismounting rope, and dismounting rope drives swing body to swing away from mobile body;Delivery device improves work safety, reduces labor intensity, and improves the efficiency of high-altitude operation and emergency rescue function.

Description

Technical Field

[0001] This invention patent relates to the technical field of transmission devices, and more specifically, to an anti-falling hook-and-drop transmission device for high-altitude operations on overhead power lines. Background Technology

[0002] In live-line maintenance and emergency rescue operations on ultra-high voltage (UHV) transmission lines, it is necessary to transfer objects at height, such as tools, materials, and personnel from the ground to the conductors and ground wires. Currently, in live-line maintenance, the transfer devices and ropes are generally attached to the workers, who are carried up to the conductor / ground wire work point before being installed and the transfer can begin. This method is labor-intensive and carries high risks. Similarly, for high-altitude emergency rescue operations, workers are currently transported from the ground to the high-altitude work point via a traction rope. However, the method of securing the traction rope is problematic. Generally, ground anchors are installed by driving stakes into the ground to secure one end of the rope, or multiple people hold one end of the rope to create a temporary fixed suspension point for the lifting equipment to transport workers to the high-altitude rescue point. Both methods result in long operation times, high labor intensity, and high safety risks.

[0003] Based on the above problems, it is proposed to develop a high-altitude anti-drop-off hook-and-drop transfer method that uses drones to assist in the traction rope, in order to replace the existing transfer operation method. The method will be comprehensively innovated in terms of equipment and operation method, so as to be more suitable for high-altitude maintenance and emergency rescue operations of ultra-high voltage (UHV) overhead transmission lines.

[0004] The device is simple to operate, efficient and safe to use. Its overall structure is compact, lightweight and small in size. It can be used not only for high-altitude midday transfer operations, but also to assist high-altitude lifting equipment in setting up hanging points and passages at high altitudes. It changes the traditional situation of high labor intensity, low efficiency and safety hazards in terms of principle and method, thereby promoting the standardization of maintenance and rescue operations of ultra-high voltage (UHV) transmission lines. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-falling hook-and-drop transfer device for high-altitude operations on overhead power lines, aiming to solve the following defects in the prior art: 1) In live-line maintenance operations, it is unsafe and labor-intensive for personnel to carry the transfer device to the conductor; 2) In high-altitude emergency rescue operations, the high-altitude traction rope does not have a safe and reliable fixed suspension point, and it is necessary to use ground anchors or pull by workers, resulting in long operation time, high labor intensity and high operation safety risks.

[0006] This invention is implemented as follows: a device for preventing detachment and transferring overhead power lines during high-altitude operations includes a movable body and a swinging body. The lower part of the movable body is equipped with a transfer pulley, and a traction rope is fitted onto the transfer pulley. The upper part of the movable body has a downward-bent hook that surrounds a conductor groove forming an opening at the bottom and accommodating the conductor. The bent hook has an extended end that is not directly connected to the conductor and is connected to a control rope that passes over the conductor. The lower part of the swinging body is hinged to the bent hook. The lower part of the swinging body is equipped with a limiting strip and a driving strip extending towards the movable body. When the control rope is pulled, the conductor enters the conductor groove through the lower opening and abuts against the driving strip, driving the swinging body to swing towards the movable body. The limiting strip swings into the conductor groove and is positioned below the conductor. The swinging body is connected to a disassembly rope, which drives the swinging body to swing away from the movable body.

[0007] Furthermore, the movable body includes a mounting base, the bottom of the bending hook is connected to the mounting base, and the transmission pulley is rotatably connected to the mounting base.

[0008] Furthermore, the bottom of the bent hook is horizontally rotatably connected to the top of the mounting base.

[0009] Furthermore, the bending hook has a side end wall facing the swing body, and a slot is provided in the side end wall, through which the limiting strip passes.

[0010] Furthermore, the drive bar is located above the limiting bar and is arranged outside the bent hook.

[0011] Furthermore, the top of the swing body extends upward with an inclined section, which is inclined away from the moving body in the upward direction, and the disassembly rope is connected to the inclined section.

[0012] Furthermore, the bending hook includes a longitudinal strip, the bottom of which is connected to the mounting base, and the top of which is bent downward to form a bending strip. The bending strip and the longitudinal strip enclose each other to form the wire groove, and the end of the bending strip forms the extension end.

[0013] Furthermore, along the oriented direction, the extended end is arranged at an angle away from the longitudinal strip.

[0014] Furthermore, the longitudinal strip has an inlet section located below the wire groove, the inlet section having an inner side facing the bending strip; in the upward direction, the inner side of the inlet section is inclined away from the bending strip.

[0015] Furthermore, the top of the wire groove is provided with two clamping arms that swing towards or away from each other, and the two clamping arms are arranged side by side; the upper part of the clamping arm is hinged, and the lower part of the clamping arm extends downward to form a clamping section for clamping the wire; a spring is provided between the upper parts of the two clamping arms, and the spring drives the clamping sections of the two clamping arms to swing away from each other; the upper part of the clamping arm has a downward protruding pressing protrusion, and when the wire presses against the pressing protrusion of the two clamping arms upward, the clamping sections of the two clamping arms swing towards each other to clamp the wire.

[0016] Furthermore, the disassembly rope is connected to a ring, through which the traction rope passes. There is a channel between the transfer pulley and the mounting base for the traction rope to pass through. A knot is set on the side of the traction rope away from the transfer pulley. The diameter of the knot is smaller than the diameter of the channel but larger than the diameter of the ring. The traction rope is wrapped around the other side of the transfer pulley to form a temporary fixed suspension point.

[0017] Compared with existing technologies, the anti-falling hanging and dismantling transfer device for high-altitude operations on overhead power lines provided by this invention allows for several improvements. When the transfer device needs to be hung on the power line, a drone is used to pass a control rope across the power line. At this time, the swinging body is in an open state away from the moving body. The worker pulls the control rope downwards, and the power line enters the power line groove through the lower opening. The drive bar swings upwards, and the swinging body swings towards the moving body until the limiting bar is below the power line. When the transfer device needs to be removed from the power line, the worker pulls the dismantling rope, driving the swinging head to swing away from the moving body, causing the limiting bar to release its restraint on the power line, thus removing the transfer device from the power line. The transfer device is compact, lightweight, and small in size. It can be carried by a drone and uses a drone-assisted high-altitude transfer method, which not only greatly improves work safety but also significantly reduces labor intensity. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the anti-falling hanging and dismantling transfer device for high-altitude operations on overhead power lines provided by the present invention;

[0019] Figure 2 This is a schematic diagram of the operation process of the anti-falling hanging and dismantling transfer device for high-altitude operations of overhead power transmission lines provided by the present invention.

[0020] Figure 3 This is a schematic diagram of the operation process of the anti-falling hanging and dismantling transfer device for high-altitude operations of overhead power transmission lines provided by the present invention.

[0021] Figure 4 This is a schematic diagram of the operation process of the anti-falling hanging and dismantling transfer device for high-altitude operations of overhead power transmission lines provided by the present invention.

[0022] Figure 5This is a schematic diagram of the operation process of the anti-falling hanging and dismantling transfer device for high-altitude operations of overhead power transmission lines provided by the present invention.

[0023] Figure 6 This is a schematic diagram of the operation process of the anti-falling hanging and dismantling transfer device for high-altitude operations of overhead power transmission lines provided by the present invention.

[0024] Figure 7 This is a three-dimensional schematic diagram of the clamping arm provided by the present invention;

[0025] Figure 8 This is a schematic diagram of another operating mode of the anti-falling hook-and-drop transfer device for high-altitude operations of overhead power transmission lines provided by the present invention. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Reference Figure 1-8 The image shows a preferred embodiment of the present invention.

[0030] The anti-falling hanging and dismantling transfer device for high-altitude operations on overhead transmission lines provided in this embodiment is mainly used for high-altitude maintenance operations on overhead transmission lines. It serves to erect hanging points at high altitudes and can be installed on conductors and ground wires of different specifications and models on high-altitude transmission lines for transfer operations.

[0031] The anti-falling hook-and-drop transfer device for high-altitude operations on overhead power lines includes a movable body and a swing body 100. The lower part of the movable body is equipped with a transfer pulley 200, and the transfer pulley 200 is fitted with a traction rope 600. The movable body can be moved by being fitted onto the conductor 300. The traction rope 600 can be used to pull heavy objects upwards, and workers on the ground can pull the heavy objects upwards.

[0032] The upper part of the mobile body has a downward-bent hook that surrounds a wire groove that forms a lower opening and accommodates the wire 300. The hook has an extended end 203 that is left unattended. The extended end 203 is connected to a control rope 400 that passes over the wire 300. When it is necessary to hang the mobile body of the transmission device on the wire 300, a drone can be used to pull the control rope 400 over the wire 300.

[0033] The lower part of the swing body 100 is hinged to the bending hook. The lower part of the swing body 100 is provided with a limiting strip 101 extending toward the moving body and a driving strip 102. When the control rope 400 is pulled, the wire 300 enters the wire groove through the lower opening of the wire groove and abuts against the driving strip 102 to drive the swing body 100 to swing toward the moving body. The limiting strip 101 swings into the wire groove and is placed below the wire 300. The swing body 100 is connected to a disassembly rope 500, which drives the swing body 100 to swing away from the moving body.

[0034] Reference Figure 2-6 As shown, when the transfer device needs to be hung on the wire 300, the control rope 400 is passed over the wire 300 by a drone. At this time, the swing body 100 is in the open state away from the moving body. The worker pulls the control rope 400 downwards, and the wire 300 enters the wire groove through the lower opening of the wire groove and swings upwards against the drive bar 102. The swing body 100 swings towards the moving body until the limit bar 101 is placed below the wire 300. When the transfer device needs to be removed from the wire 300, the worker pulls the removal rope 500, driving the swing head to swing away from the moving body, so that the limit bar 101 is released from the restriction of the wire 300, and the transfer device is removed from the wire 300. The transfer device has a compact and lightweight structure, small size and light weight. It can be carried by a drone and has a high-altitude transfer method assisted by a drone, which not only greatly improves work safety, but also greatly reduces labor intensity.

[0035] The movable body includes a mounting base 201, the bottom of which is connected to the mounting base 201, and a transfer pulley 200 is rotatably connected to the mounting base 201 to facilitate the installation of the transfer pulley 200.

[0036] The bottom of the bending hook is horizontally rotatably connected to the top of the mounting base 201, so that the transfer pulley 200 can rotate 360° relative to the moving body to prevent the traction ropes 600 from getting tangled together during the transfer of heavy objects at high altitudes.

[0037] The bending hook has a side end wall facing the swing body 100, and a slot is provided in the side end wall, through which a limiting strip 101 passes. When the swing body 100 swings toward or away from the moving body, the limiting strip 101 can move back and forth in the slot.

[0038] The drive bar 102 is located above the limit bar 101 and is arranged outside the bending hook. This facilitates the setting of the drive bar 102. When the control rope 400 is pulled down, the moving body moves downward. When the wire 300 is added to the wire groove through the lower opening of the wire groove, it can swing upward against the drive bar 102, driving the entire swing body 100 to swing toward the moving body.

[0039] The top of the swing body 100 extends upward with an inclined section 103. Along the upward direction, the inclined section 103 is inclined away from the moving body, and the disassembly rope 500 is connected to the inclined section 103. In this way, when the disassembly rope 500 is pulled downward, it is easy to swing the swing body 100 away from the moving body outward.

[0040] In this embodiment, a ring 501 is provided at the end of the disassembly rope 500. The aforementioned traction rope 600 passes through the ring 501. There is a channel between the transfer pulley 200 and the mounting base 201 for the traction rope 600 to pass through. When it is necessary to pull the disassembly rope 500 to disassemble the transfer device from the wire 300, one end of the traction rope 600 is knotted to form a knotted end. The diameter of the knotted end is smaller than the diameter of the channel and larger than the diameter of the ring 501. In this way, when the other end of the traction rope 600 is pulled, the knotted end passes through the channel of the transfer pulley 200 and locks the ring 501. When the traction rope 600 is pulled, the traction rope 600 simultaneously transmits the pulling of the disassembly rope 500, thereby achieving the effect of pulling the disassembly rope 500.

[0041] In this embodiment, a magnetic block is provided on the side wall of the mounting base 201 facing the ring 501. When it is not necessary to pull the disassembly rope 500, the ring 501 is attracted to the side wall of the mounting base 201 by the magnetic block. When it is necessary to remove the transmission device from the wire 300, the disassembly rope 500 needs to be pulled. At this time, under the action of the pulling force, the ring 501 is separated from the mounting base 201.

[0042] The bending hook includes a longitudinal strip, the bottom of which is connected to the mounting base 201. The top of the longitudinal strip bends downward to form a bending strip. The bending strip and the longitudinal strip enclose each other to form a wire groove. The end of the bending strip forms an extension end 203.

[0043] Along the direction of orientation, the outer end 203 is inclined away from the longitudinal strip, so that the conductor 300 can pass through the lower opening of the conductor groove and enter the conductor groove.

[0044] The longitudinal bar has an inlet section located below the conductor groove, and the inlet section has an inner side facing the bending bar; in the upward direction, the inner side of the inlet section is inclined away from the bending bar. In this way, the lower opening of the conductor groove is inclined towards the direction of the control rope 400, so that when the control rope 400 is pulled, the conductor 300 can pass through the lower opening and enter the conductor groove.

[0045] In this embodiment, the top of the wire groove is provided with two clamping arms 800 that swing towards or away from each other, and the two clamping arms 800 are arranged side by side; the upper part of the clamping arm 800 is hinged, and the lower part of the clamping arm 800 extends downward to form a clamping section 802 for clamping the wire 300; a spring 700 is provided between the upper parts of the two clamping arms 800, and the spring 700 drives the clamping sections 802 of the two clamping arms 800 to swing away from each other; the upper part of the clamping arm 800 has a downward protruding abutment protrusion 801, and when the wire 300 presses against the abutment protrusion 801 of the two clamping arms 800 upward, the clamping sections 802 of the two clamping arms 800 swing towards each other to clamp the wire 300.

[0046] When the operator pulls the control rope 400 close to the overhead transmission line conductor 300, the transmission device is pulled by the operator and instantly hooks onto the overhead transmission line conductor 300. At this time, the swing body 100 changes its center of gravity and angle with the transmission device. At the same time, the drive bar 102 is forced to rotate above the conductor 300 by the upper surface of the conductor 300 and is in a closed and locked state. The center of gravity of the transmission device is transferred to the upper surface of the conductor 300. The limit bar 101 is below the conductor 300. Once the transmission device enters the transmission operation and bears the weight, the drive bar 102 is always placed on the upper surface of the conductor 300 and will not fall off no matter how it shakes, thus achieving the purpose of preventing it from falling off.

[0047] As the conductor 300 moves upward, it presses against the abutment protrusions 801 of the two clamping arms 800. This causes the clamping sections 802 of the two clamping arms 800 to swing apart and clamp the two sides of the conductor 300. Thus, during operation, the force exerted on the clamping arms 800 by the lifting gravity causes the clamping arms 800 to rotate synchronously at a certain angle and firmly clamp the outside of the conductor 300. It can also clamp conductors 300 of different diameters, ensuring that the transmission device does not slip or loosen when used on conductors 300 with slopes and sags. This solves the problem that it was previously impossible to perform high-altitude transmission operations under conductors 300 with slopes and sags.

[0048] In this embodiment, the clamping section 802 of the clamping arm 800 is provided with a rubber clamp, which has the characteristics of high friction coefficient and is not easy to slip, and will not damage the wire 300 during operation.

[0049] Reference Figure 8 As shown, the anti-falling hook-and-drop transfer device provided in this embodiment can also be used to assist aerial lifting equipment in setting up hanging points and passages at high altitudes. The following is its operating mode:

[0050] Its operation method is basically the same as that of high-altitude heavy object transfer operation, the difference is that: a knot 900 is set on the side of the traction rope 600 away from the transfer pulley 200. The diameter of the knot 900 is smaller than the diameter of the channel and larger than the diameter of the ring 501. In this way, the knot 900 blocks the ring 501, so that the traction rope 600 passes around the other side of the transfer pulley 200 to form a temporary fixed suspension point. Of course, the other side of the traction rope 600 can also be used to unlock the transfer device.

[0051] Using the temporary fixed suspension point formed on one side of the traction rope 600, the aerial lifting equipment can rise and fall along the traction rope 600 to carry workers for aerial lifting operations. After the operation is completed, the transfer device is also removed from the height by the same method of transferring heavy objects at height.

[0052] The transmission device for overhead power line operations provided in this embodiment has the following advantages:

[0053] 1) Installed after the high-altitude power transmission line 300, it has an anti-fall-off locking function. During operation, it will not fall out of the high-altitude power transmission line 300 due to the instability of the center of gravity caused by the shaking of the power line 300 or the device itself, thus causing a high-altitude fall accident.

[0054] 2) It enables high-altitude installation and dismantling from the ground. Ground workers only need to control the control rope 400 and the traction rope 600 to install the device from the ground onto the high-altitude power transmission line conductor 300. After the work is completed, the device can be removed from the high-altitude power transmission line conductor 300 by pulling the traction rope 600 and then pulling the dismantling rope 500. The hanging and dismantling operation is simple, efficient, and safe, which can reduce the labor intensity of workers and improve the efficiency of maintenance work.

[0055] 3) It can be used on conductors 300 with slope and sag, ensuring that there is no slippage or loosening when used on conductors 300 with slope and sag, thus solving the problem that it was previously impossible to carry out high-altitude transmission operations under conductors with slope and sag.

[0056] 4) The clamping arm 800 is equipped with rubber clamps, which have the characteristics of high friction coefficient and are not easy to slip, and will not damage the wire 300 during operation;

[0057] 5) The special high-altitude dismantling method solves the problem of direct contact and friction between the conductor 300 and the traction rope 600 in the past. Especially for live working environments, once the conductor 300 and the traction rope 600 rub against each other, the surface of the traction rope 600 will be seriously dirty and worn, and its insulation performance and load-bearing performance will be reduced, which will directly affect the safety of live working.

[0058] 6) The anti-fall-off hanging and transfer device can not only be used for the transfer of heavy objects at high altitudes, but also to assist in the installation of hanging points and passages for aerial lifting equipment at high altitudes.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for preventing detachment and transferring overhead power lines during high-altitude operations, characterized in that: The device includes a movable body and a swinging body. The lower part of the movable body is equipped with a transfer pulley, on which a traction rope is fitted. The upper part of the movable body has a downward-bent hook that surrounds a wire groove forming a lower opening and accommodating a wire. The hook has an extended end that is not directly connected to the wire and is connected to a control rope that extends beyond the wire. The lower part of the swinging body is hinged to the hook. The lower part of the swinging body has a limiting strip and a driving strip extending towards the movable body. When the control rope is pulled, the wire enters the wire groove through the lower opening and abuts against the driving strip, driving the swinging body to swing towards the movable body. The limiting strip swings into the wire groove and is positioned below the wire. The swinging body is connected to a disassembly rope, which drives the swinging body to swing away from the movable body. The movable body includes a mounting base, the bottom of the bending hook is connected to the mounting base, and the transmission pulley is rotatably connected to the mounting base; The bottom of the bent hook is horizontally rotatably connected to the top of the mounting base; The bending hook has a side end wall facing the swing body, and a slot is provided in the side end wall, through which the limiting strip passes. The drive bar is located above the limiting bar and is arranged outside the bent hook; The top of the wire groove is provided with two clamping arms that swing towards or away from each other, and the two clamping arms are arranged side by side; the upper part of the clamping arm is hinged, and the lower part of the clamping arm extends downward to form a clamping section for clamping the wire; a spring is provided between the upper parts of the two clamping arms, and the spring drives the clamping sections of the two clamping arms to swing away from each other; the upper part of the clamping arm has a downward protruding pressing protrusion, and when the wire presses against the pressing protrusion of the two clamping arms upward, the clamping sections of the two clamping arms swing towards each other to clamp the wire.

2. The anti-falling hook-and-drop transfer device for high-altitude operations on overhead power lines as described in claim 1, characterized in that, The top of the swing body extends upward with an inclined section, which is inclined off-center from the moving body along the upward direction, and the disassembly rope is connected to the inclined section.

3. The anti-falling hook-and-drop transfer device for high-altitude operations on overhead power lines as described in claim 1, characterized in that, The bending hook includes a longitudinal strip, the bottom of which is connected to the mounting base, and the top of which is bent downward to form a bending strip. The bending strip and the longitudinal strip enclose each other to form the wire groove, and the end of the bending strip forms the extension end.

4. The anti-falling hook-and-drop transfer device for high-altitude operations on overhead power lines as described in claim 3, characterized in that, Along the direction of orientation, the extended end is inclined away from the longitudinal strip.

5. The anti-falling hook-and-drop transfer device for high-altitude operations on overhead power lines as described in claim 4, characterized in that, The longitudinal strip has an inlet section located below the wire groove, the inlet section having an inner side facing the bending strip; in the upward direction, the inner side of the inlet section is inclined away from the bending strip.

6. The anti-falling hook-and-drop transfer device for high-altitude operations on overhead power lines as described in claim 1, characterized in that, The disassembly rope is connected to a ring, through which the traction rope passes. There is a channel between the transfer pulley and the mounting base for the traction rope to pass through. A knot is set on the side of the traction rope away from the transfer pulley. The diameter of the knot is smaller than the diameter of the channel but larger than the diameter of the ring. The traction rope is wrapped around the other side of the transfer pulley to form a temporary fixed suspension point.

Images