A three-split wire flying car

Abstract

A three-split wire flying car of the present invention comprises an upper frame and a lower frame, pulley assemblies are arranged on both sides of the upper frame for hanging on the wires on both sides, the lower frame is fixedly installed below the upper frame, and the lower frame is a frame structure for accommodating operators and equipment, adjustment plates are arranged on both sides of the upper frame, and a plurality of transverse connection holes arranged in the transverse direction are provided on the adjustment plates, and the lower frame can be selectively fixedly installed in one of the corresponding transverse connection holes, and an adjustable frame is also arranged on the lower frame, and a pulley assembly is arranged on the adjustable frame for hanging on the middle wire, and an adjustment rod is arranged below the adjustable frame, and a plurality of longitudinal connection holes arranged in the longitudinal direction are provided on the adjustment rod, and the adjustable frame can be selectively fixedly installed on the lower frame through one of the longitudinal connection holes. It has the advantages of simple structure, light volume, convenient adjustment, safety and reliability.

Description

Technical Field

[0001] The invention relates to the field of electric power equipment, in particular to a wire flying car. Background Art

[0002] At present, in domestic overhead transmission lines, single-conductor, double-split conductor, four-split conductor, six-split conductor and eight-split conductor transmission methods are adopted according to different voltage levels. Different conductor flying cars are developed according to construction needs to meet the needs of operations on different conductors. On some multi-split conductors, a relatively primitive form of operators walking on the conductors is still adopted, which is not only unsafe but also labor-intensive.

[0003] Some foreign overhead transmission lines, such as 400kV overhead transmission lines, need to adopt a three-split conductor structure, and the three-split conductor overhead transmission lines have different conductor spacings in different spans or different conductor sections.

[0004] Therefore, how to develop an operating tool on a three-split conductor to overcome the above-mentioned problems is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0005] The main purpose of the present invention is to provide a three-split wire flying car which has a simple structure, light volume, convenient adjustment, safety and reliability.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a three-split wire flying car, comprising an upper frame and a lower frame, pulley assemblies are arranged on both sides of the upper frame for hanging on the wires on both sides, the lower frame is fixedly installed under the upper frame, and the lower frame is a frame structure for accommodating operators and equipment, characterized in that: adjustment plates are arranged on both sides of the upper frame, the adjustment plates are provided with a plurality of groups of transverse connecting holes arranged in the transverse direction, the lower frame can be selectively fixedly installed in one group of corresponding transverse connecting holes, the lower frame is also provided with an adjustable frame, the adjustable frame is provided with a pulley assembly for hanging on the middle wire, an adjusting rod is arranged under the adjustable frame, the adjusting rod is provided with a plurality of longitudinal connecting holes arranged in the longitudinal direction, and the adjustable frame can be selectively fixedly installed on the lower frame through one of the longitudinal connecting holes.

[0007] As an improvement, at least one group of the pulley assemblies is provided with a parking brake at the rear, and the parking brake includes a parking fixing plate, a guide shaft, a clamping plate, a screw rod and a brake handle. The parking fixing plates consist of two pieces and are fixed on the upper frame or the adjustable frame. The guide shaft passes horizontally through and is fixedly connected to the parking fixing plates. The clamping plates consist of two pieces and are respectively located on both sides of the wire. The guide shaft passes horizontally through and is slidably connected to the clamping plates. The screw rod passes horizontally through and is rotationally connected to the parking fixing plates. Threaded segments with opposite spiral directions are respectively provided at both ends of the screw rod. The screw rod passes horizontally through and is threadedly connected to the clamping plates, and the threaded rotation directions of the threaded segments of the clamping plates on both sides are opposite. The brake handle is fixedly connected to the screw rod; the brake handle drives the screw rod to rotate, thereby controlling the clamping plate to clamp or release the wire. In this structure, the two clamps are located on both sides of the wire, and the two clamps can slide along the axial direction of the guide shaft. The brake handle drives the screw to rotate, and the rotation of the screw can drive the two clamps to move. The movement directions of the two clamps are opposite through the setting of opposite rotation threads. Therefore, the clamping or loosening states of the two clamps can be controlled by operating the brake handle.

[0008] As an improvement, at least one group of the pulley assemblies is provided with a travel brake below, and the travel brake includes a brake fixing plate, a brake frame and a brake seat. The brake fixing plates are two pieces and are fixed on the upper frame or the adjustable frame. The brake fixing plates are located on both sides of the pulley assembly. The brake frame is hinged between the brake fixing plates on both sides. The brake seat is hinged on the brake frame, and the brake frame is provided with a limit screw to keep the brake seat at a certain tilt angle without completely tipping over; the brake frame flips up and down to drive the brake seat closer to or away from the wire. When the operator needs emergency braking, by pulling the brake frame, the brake seat and the pulley assembly are pressed against each other, which plays a braking function, and the wire flying car can be quickly controlled in the shortest time.

[0009] As a further improvement, a protection chain is also provided on the upper frame, and the two ends of the protection chain are respectively installed on both sides of the upper frame, and the direction is perpendicular to the wire to form a closed loop, which can play a double insurance role to prevent the wire from accidentally falling off.

[0010] Preferably, the lower frame includes a connector, a towing ring, a vertical rod, a horizontal rod, a protective net and a fixed square tube. The vertical rod, the horizontal rod and the protective net form a rectangular frame. The towing ring is used to connect the towing rope, the connector is used to fix the adjustment plate, and the fixed square tube is used to fix the adjustment rod. The staff can stand on the lower frame to perform installation, maintenance and other operations, ensuring the safety of the staff; towing rings parallel to the direction of the wire are welded on the vertical rods on both sides of the frame. When the wire flying car is suspended on the aerial wire, the ground staff can control the movement and movement distance of the wire flying car along the front and rear directions of the wire through the towing rope connected to the towing ring.

[0011] Preferably, the upper frame and the adjustable frame are both U-shaped frame structures, the pulley assembly is arranged inside the U-shaped frame, four groups of pulley assemblies are arranged on the upper frame, and two of them are respectively suspended on the wires on both sides; the pulley assembly includes a pulley shaft, a pulley fixing plate and the pulley, the pulley shaft is fixed to the upper frame or the adjustable frame through the pulley fixing plate, and the pulley is rotatably connected to the pulley shaft. The above structure is simple and reliable, and is suitable for the wire flying car.

[0012] As an improvement, the lower frame and one of the adjustment plates are fixedly connected by bolts and latches. When the latch is pulled out, the upper frame on one side can be opened outward, allowing the wire flying car to enter and hang on the wire or detach from the wire.

[0013] As an improvement, a threaded sleeve is welded on the inner side of the clamping plate, and the threaded sleeve is located on the side around the screw rod; a parking anti-skid sheet is also provided on the inner side of the clamping plate, and the parking anti-skid sheet contacts the wire. Since the clamping plate is a thin plate, it needs to withstand a certain radial force when clamping the wire. In order to ensure the clamping strength of the clamping plate when clamping, a threaded sleeve is welded on the clamping plate, which can not only improve the guiding property of the clamping plate on the screw rod, but also improve the strength of the clamping plate when clamping the wire. The provision of the parking anti-skid sheet can increase the friction between the wire and the clamping plate, making the parking device more reliable, avoiding slipping, and protecting the wire from damage.

[0014] As a further improvement, the brake frame is connected with an anti-droop chain, the other end of which is connected to the upper frame or the adjustable frame, and the anti-droop chain limits the brake frame from turning downward; a brake anti-skid sheet is also provided on the upper side of the brake seat, and the brake anti-skid sheet contacts the wire. The provision of the anti-droop chain can prevent the brake frame from sagging too much due to gravity, and the brake frame can maintain an appropriate working travel distance when the travel brake is not working. The provision of the brake anti-skid sheet can increase the friction between the brake frame and the wire, making the brake device more reliable, avoiding slipping, and protecting the wire from damage.

[0015] As an additional extension, a length measuring instrument is also provided on the upper frame to measure the travel distance of the wire trolley. When the wire trolley is driven by human traction on the ground to travel on the line, the staff on the ground cannot accurately determine the travel distance of the wire trolley, and it may always be in a traction state. In this case, the operator on the wire trolley needs to know the exact distance traveled by the wire trolley through the length measuring instrument to determine whether it has reached the designated position. When the number displayed by the length measuring instrument is the distance that the wire trolley needs to travel, the travel brake is immediately used to brake, and then the parking brake is used to fix the wire trolley at the position where the operation needs to be performed, so that the travel distance of the wire trolley can be determined more accurately to prevent misoperation caused by deviations in the travel distance.

[0016] Compared with the prior art, the advantages of the present invention are: through the setting of the adjustment plate and the adjustment rod, the horizontal and vertical adjustments can be made according to the different spacings of the three-split conductors, so that it can adapt to the spacing of the conductors, so as to achieve multi-purpose use of one machine and improve economic benefits and work efficiency; in addition, the setting of the parking brake, the travel brake and the protection chain can greatly improve the safety of the equipment. Therefore, the present scheme is a three-split conductor flying car that can realize the installation and maintenance of the accessories such as the spacer bars and the shockproof hammer of the overhead transmission line and the inspection of the conductor crimping tube according to the three-split conductor overhead transmission lines with different spacings, and has the characteristics of simple structure, light volume, convenient adjustment, safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view according to a preferred embodiment of the present invention;

[0018] Figure 2 is a side view according to a preferred embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of an upper frame according to a preferred embodiment of the present invention;

[0020] Figure 4 is a schematic structural diagram of an adjustable rack according to a preferred embodiment of the present invention;

[0021] Figure 5 is a schematic diagram of the structure of a parking brake according to a preferred embodiment of the present invention;

[0022] Figure 6 It is a structural schematic diagram of a travel brake according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] like Figures 1 to 6 As shown, a preferred embodiment of the present invention includes an upper frame 1 and a lower frame 2, pulley assemblies 3 are provided on both sides of the upper frame 1 for hanging on the wires 100 on both sides, the lower frame 2 is fixedly installed below the upper frame 1, and the lower frame 2 is a frame structure for accommodating operators and equipment, the key points of which are: adjusting plates 11 are provided on both sides of the upper frame 1, a plurality of groups of transverse connecting holes 111 arranged in the transverse direction are provided on the adjusting plates 11, the lower frame 2 can be selectively fixedly installed in one of the corresponding groups of transverse connecting holes 111, an adjustable frame 4 is also provided on the lower frame 2, the pulley assembly 3 is provided on the adjustable frame 4 for hanging on the middle wire 100, an adjusting rod 41 is provided below the adjustable frame 4, a plurality of longitudinal connecting holes 411 arranged in the longitudinal direction are provided on the adjusting rod 41, and the adjustable frame 4 can be selectively fixedly installed on the lower frame 2 through one of the longitudinal connecting holes 411.

[0025] As a safety configuration, a parking brake 5 is provided at the rear of at least one group of pulley assemblies 3. The parking brake 5 includes a parking fixed plate 51, a guide shaft 52, a clamping plate 53, a screw rod 54 and a brake handle 55. The parking fixed plate 51 consists of two pieces and is fixed on the upper frame 1 or the adjustable frame 4. The guide shaft 52 passes through and is fixedly connected to the parking fixed plate 51 transversely. The clamping plate 53 consists of two pieces and is respectively located on both sides of the wire 100. The guide shaft 52 passes through and is slidably connected to the clamping plate 53 transversely. The screw rod 54 passes through and is rotationally connected to the parking fixed plate 51. Threaded segments with opposite spiral directions are respectively provided at both ends of the screw rod 54. The screw rod 54 passes through and is threadedly connected to the clamping plate 53 transversely, and the threaded rotation directions of the threaded segments of the clamping plates 53 on both sides are opposite. The brake handle 55 is fixedly connected to the screw rod 54; the brake handle 55 drives the screw rod 54 to rotate, thereby controlling the clamping plate 53 to clamp or release the wire. A travel brake 6 is provided below at least one group of pulley assemblies 3. The travel brake 6 includes a brake fixing plate 61, a brake frame 62 and a brake seat 63. The brake fixing plate 61 is composed of two pieces and is fixed on the upper frame 1 or the adjustable frame 4. The brake fixing plate 61 is located on both sides of the pulley assembly 3. The brake frame 62 is hinged between the brake fixing plates 61 on both sides. The brake seat 63 is hinged on the brake frame 62, and a limit screw 621 is provided on the brake frame 62 to keep the brake seat 63 at a certain tilt angle without completely tipping over. The brake frame 62 flips up and down to drive the brake seat 63 to approach or move away from the wire 100. A protection chain 7 is also provided on the upper frame 1. The two ends of the protection chain 7 are respectively installed on both sides of the upper frame 1, and the direction is perpendicular to the wire 100 to form a closed loop.

[0026] In this embodiment, the lower frame 2 includes a connector 21, a towing ring 22, a vertical rod 23, a horizontal rod 24, a protective net 25 and a fixed square tube 26. The vertical rod 23, the horizontal rod 24 and the protective net 25 form a rectangular frame. The towing ring 22 is used to connect the traction rope, the connector 21 is used to fix the adjustment plate 11, and the fixed square tube 26 is used to fix the adjustment rod 41. The upper frame 1 and the adjustable frame 4 are both U-shaped frame structures. The pulley assembly 3 is arranged inside the U-shaped frame. Four groups of pulley assemblies are arranged on the upper frame 1, and they are respectively suspended on the wires 100 on both sides in pairs; the pulley assembly 3 includes a pulley shaft 31, a pulley fixing plate 32 and a pulley 33. The pulley shaft 31 is fixed to the upper frame 1 or the adjustable frame 4 through the pulley fixing plate 32, and the pulley 33 is rotatably connected to the pulley shaft 31.

[0027] As a further specific example, the lower frame 2 and one of the adjustment plates 11 are fixedly connected by bolts 12 and latches 13. When the latches 13 are pulled out, the upper frame 1 on one side can be opened outward, so that the wire flyer can enter and hang on the wire or detach from the wire. A threaded sleeve 56 is welded on the inner side of the clamping plate 53, and the threaded sleeve 56 is located around the screw rod 54; a parking anti-skid sheet 57 is also provided on the inner side of the clamping plate 53, and the parking anti-skid sheet 57 is in contact with the wire 100. An anti-drooping chain 64 is connected to the brake frame 62, and the other end of the anti-drooping chain 64 is connected to the upper frame 1 or the adjustable frame 4, and the anti-drooping chain 64 limits the brake frame 62 from turning downward; a brake anti-skid sheet 65 is also provided on the upper side of the brake seat 63, and the brake anti-skid sheet 65 is in contact with the wire 100.

[0028] As an additional configuration, a length measuring instrument 8 is also provided on the upper frame 1 for measuring the travel distance of the wire flying vehicle.

[0029] Generally, overhead transmission lines have ups and downs. When the human-powered traction-driven wire flying car on the ground moves on the line, it will encounter uphill and downhill situations. When going downhill, the speed of the wire flying car needs to be controlled to prevent the wire flying car from speeding too fast and missing the location where construction is required; after the wire flying car reaches the designated location, it needs to brake and position to maintain the position of the wire flying car at this time, so as to facilitate construction operations. The three-split wire flying car of the present invention needs additional auxiliary lifting tools to help it enter or leave the wire.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A three-split wire flying car, comprising an upper frame and a lower frame, wherein pulley assemblies are arranged on both sides of the upper frame for hanging on the wires on both sides, and the lower frame is fixedly installed below the upper frame, and the lower frame is a frame structure for accommodating operators and equipment, characterized in that: Adjustment plates are provided on both sides of the upper frame, and a plurality of groups of transverse connection holes arranged in a transverse direction are provided on the adjustment plates. The lower frame can be selectively fixedly installed in one group of corresponding transverse connection holes. An adjustable frame is also provided on the lower frame, and a pulley assembly is provided on the adjustable frame for hanging on the middle wire. An adjustment rod is provided below the adjustable frame, and a plurality of longitudinal connection holes arranged in a longitudinal direction are provided on the adjustment rod. The adjustable frame can be selectively fixedly installed on the lower frame through one of the longitudinal connection holes. The upper frame is also provided with a protection chain, and the two ends of the protection chain are respectively installed on both sides of the upper frame, and the direction is perpendicular to the wire to form a closed loop; The upper frame and the adjustable frame are both U-shaped frame structures, the pulley assembly is arranged inside the U-shaped frame, four groups of pulley assemblies are arranged on the upper frame, and two by two of them are respectively suspended on the wires on both sides; the upper frames on both sides are arranged opposite to each other; The lower frame and one of the adjustment plates are fixedly connected by bolts and latches. When the latch is pulled out, the upper frame on one side can be opened outwards, so that the wire flying car enters to hang the wire or detaches from the wire.

2. A three-split wire flying car according to claim 1, characterized in that: A parking brake is arranged at the rear of at least one group of the pulley assemblies, and the parking brake includes a parking fixing plate, a guide shaft, a clamping plate, a screw rod and a brake handle. The parking fixing plates consist of two pieces and are fixed on the upper frame or the adjustable frame. The guide shaft passes horizontally through and is fixedly connected to the parking fixing plates. The clamping plates consist of two pieces and are respectively located on both sides of the wire. The guide shaft passes horizontally through and is slidably connected to the clamping plates. The screw rod passes horizontally through and is rotatably connected to the parking fixing plates. Threaded segments with opposite spiral directions are respectively arranged at both ends of the screw rod. The screw rod passes horizontally through and is threadedly connected to the clamping plates, and the threaded rotation directions of the threaded segments cooperating with the clamping plates on both sides are opposite, and the brake handle is fixedly connected to the screw rod; the brake handle drives the screw rod to rotate, thereby controlling the clamping plates to clamp or release the wire.

3. A three-split wire flying car according to claim 1, characterized in that: A travel brake is arranged under at least one group of the pulley assemblies, and the travel brake includes a brake fixing plate, a brake frame and a brake seat. The brake fixing plates are divided into two pieces and are fixed on the upper frame or the adjustable frame. The brake fixing plates are located on both sides of the pulley assembly. The brake frame is hinged between the brake fixing plates on both sides. The brake seat is hinged to the brake frame, and a limiting screw is arranged on the brake frame to keep the brake seat at a certain tilt angle without completely tipping over. The brake frame flips up and down to drive the brake seat to approach or move away from the wire.

4. A three-split wire flying car according to claim 1, characterized in that: The lower frame includes a connecting head, a towing ring, a vertical rod, a horizontal rod, a protective net and a fixed square tube. The vertical rod, the horizontal rod and the protective net form a rectangular frame. The towing ring is used to connect the traction rope, the connecting head is used to fix the adjustment plate, and the fixed square tube is used to fix the adjustment rod.

5. A three-split wire flying car according to claim 1, characterized in that: The pulley assembly comprises a pulley shaft, a pulley fixing plate and the pulley. The pulley shaft is fixed to the upper frame or the adjustable frame through the pulley fixing plate, and the pulley is rotatably connected to the pulley shaft.

6. A three-split wire flying car according to claim 2, characterized in that: A threaded sleeve is welded on the inner side of the clamping plate, and the threaded sleeve is located on the peripheral side of the screw rod; a parking anti-skid sheet is also arranged on the inner side of the clamping plate, and the parking anti-skid sheet is in contact with the wire.

7. A three-split wire flying car according to claim 3, characterized in that: The brake frame is connected with an anti-drooping chain, the other end of which is connected with the upper frame or the adjustable frame, and the anti-drooping chain limits the brake frame from flipping downward; a brake anti-skid sheet is also provided on the upper side of the brake seat, and the brake anti-skid sheet is in contact with the wire.

8. A three-split wire flying vehicle according to any one of claims 1 to 7, characterized in that: The upper frame is also provided with a length measuring instrument for measuring the travel distance of the wire flying vehicle.

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