High-altitude blocking double-arm crossing vehicle for electric power overhead line construction

Abstract

The invention provides a high-altitude net blocking double-arm crossing vehicle for power overhead line construction, which comprises a main crossing vehicle, an auxiliary crossing vehicle, a line-crossing net blocking mechanism and a bearing net locking mechanism, a main lifting frame capable of freely lifting is arranged at the upper end of the main crossing vehicle, and an auxiliary lifting frame capable of freely lifting is arranged at the upper end of the auxiliary crossing vehicle; the main crossing vehicle and the auxiliary crossing vehicle are arranged on the upper end of the main lifting frame, the overline net blocking mechanism is transversely arranged on the upper end of the main lifting frame, and the bearing net locking mechanism is transversely arranged on the upper end of the auxiliary lifting frame. The main lifting frame and the auxiliary lifting frame are started to respectively lift the cross-line net blocking mechanism and the bearing net locking mechanism to the two sides above the power transmission line needing to be subjected to spanning construction, the cross-line net blocking mechanism can be combined with the bearing net locking mechanism after transversely spanning above the power transmission line, net blocking protection can be quickly formed above the power transmission line, the building efficiency is high, and the construction cost is low. The stability is good, and the overhead line crossing construction is more convenient and safer.

Description

Technical Field

[0001] The invention relates to the technical field of electric power overhead line construction, and in particular to a high-altitude net-sealing double-arm straddling vehicle for electric power overhead line construction. Background Art

[0002] With the development of power grid construction and the acceleration of urban construction, the number of newly built power transmission lines crossing important overhead crossings such as railways, highways, and transmission lines has increased, posing great challenges to the construction of overhead power lines, especially in the overhead construction crossing 10kV and below transmission lines. Modern industry's dependence on electricity has made power outage operations increasingly difficult, and the construction of live overhead crossings is inevitable.

[0003] During the traditional construction process of overhead transmission line crossings, bamboo, wooden poles or steel pipe scaffolding are generally used to build crossing frames to provide support and protection for the transmission lines under construction. The construction of the crossing frames is not only time-consuming and labor-intensive, but also inconvenient to move, with poor maneuverability and safety. In addition, the subsequent disassembly and transportation of the crossing frames are also troublesome, requiring a lot of manpower and material resources, which is very inconvenient. Summary of the Invention

[0004] In view of this, it is necessary to provide a high-altitude net-sealing double-arm crossing vehicle for the construction of overhead power lines to solve the technical problem of inconvenient construction of the crossing frame during the construction of overhead power lines in the existing technology.

[0005] The technical solution adopted by the present invention to solve its technical problem is: The utility model relates to a high-altitude net sealing double-arm crossing vehicle for the construction of overhead power lines, comprising a main crossing vehicle, an auxiliary crossing vehicle, a cross-line net sealing mechanism and a receiving and locking net mechanism. The upper end of the main crossing vehicle is provided with a main lifting frame that can be raised and lowered freely, and the upper end of the auxiliary crossing vehicle is provided with an auxiliary lifting frame that can be raised and lowered freely, the cross-line net sealing mechanism is arranged laterally on the upper end of the main lifting frame, and the receiving and locking net mechanism is arranged laterally on the upper end of the auxiliary lifting frame. The main crossing vehicle and the auxiliary crossing vehicle can be moved to the opposite sides of the power transmission line to be crossed over respectively, and the cross-line net sealing mechanism and the receiving and locking net mechanism can be raised to the two sides above the power transmission line to be crossed over respectively by the main lifting frame and the auxiliary lifting frame, so that they are opposite to each other, and the cross-line net sealing mechanism can extend from the upper end of the power transmission line to the direction of the receiving and locking net mechanism to cross the power transmission line, and the receiving and locking net mechanism can lock and support the cross-line net sealing mechanism extending across the power transmission line, so that they are combined with each other to form a net sealing protection above the power transmission line.

[0006] Preferably, the cross-line net sealing mechanism includes a crossing beam, a protective net and two net sealing crossing arms. The crossing beam is horizontally arranged at the upper end of the main lifting frame, and a rotating mechanism is respectively provided at both ends of the crossing beam. One end of the two net sealing crossing arms is respectively arranged on the rotating mechanism, and the other end of the two net sealing crossing arms is a free end. The free ends of the two net sealing crossing arms are respectively facing the receiving locking net mechanism, and the two ends of the protective net are respectively hung on the two net sealing crossing arms. The rotating mechanism can drive the two net sealing crossing arms to be parallel to the direction of the crossing beam. Rotate and fold, or drive the two sealing net spanning arms to rotate and open in the direction of the receiving and locking net mechanism. After the two sealing net spanning arms are rotated and folded in the direction of the crossing beam, the protective net can be contracted. After the two sealing net spanning arms are rotated and opened in the direction of the receiving and locking net mechanism, they can be extended to cross the power transmission line that needs to be constructed, and the protective net can be unfolded parallel to the top of the power transmission line. The receiving and locking net mechanism can lock and support the free ends of the two sealing net spanning arms that are extended across the power transmission line, so that they are combined with each other to form a sealing net protection above the power transmission line.

[0007] Preferably, the slewing mechanism includes a slewing support and a slewing motor. The slewing support is arranged parallel to the end of the crossing beam, one end of the sealing net crossing arm is fixed to the upper end of the slewing support, and the slewing motor is arranged at the lower end or one side of the slewing support. The slewing motor drives the slewing support to rotate parallel to the end of the crossing beam to drive the sealing net crossing arm to fold toward the direction of the crossing beam, or rotate and open in parallel toward the direction of the locking net mechanism.

[0008] Preferably, the two sealing net spanning arms are respectively provided with guide rails along their length directions, and a number of connecting rings are evenly distributed along the length directions on the edges at both ends of the protective net connected to the two sealing net spanning arms. The connecting rings at both ends of the protective net are correspondingly clamped on the two sealing net spanning arm guide rails in sequence and can slide freely along the guide rails. Freely rotatable sprockets are respectively provided at the two ends of the two sealing net spanning arms, and a matching traction chain is annularly sleeved on the two sprockets of each sealing net spanning arm. The opposite ends of the two ends of the protective net with the connecting ring are fixed on the traction chain, and the other opposite ends are respectively Fixed at one end of the two net-sealing spanning arms close to the spanning beam, traction motors connected to the corresponding shafts of the sprockets are respectively provided at the ends of the two net-sealing spanning arms. The traction motors respectively drive the two sprockets on the two net-sealing spanning arms to rotate synchronously, in the same direction and at the same speed. The sprockets drive the traction chain to reciprocate synchronously, in the same direction and at the same speed along the length direction of the two net-sealing spanning arms. The traction chain pulls the protective net to retract in the direction of the spanning beam, or pulls the protective net to move in the direction of the receiving locking net mechanism, so that the protective net can be unfolded in parallel between the spanning beam and the receiving locking net mechanism to form a net-sealing protection above the transmission line.

[0009] Preferably, the receiving and locking net mechanism includes a receiving beam and two locking mechanisms. The receiving beam is laterally arranged at the upper end of the auxiliary lifting frame, opposite to and parallel to the crossing beam, and the two locking mechanisms are respectively arranged at both ends of the receiving beam. After the free ends of the two sealing net crossing arms are respectively extended toward the two ends of the receiving beam to cross the transmission line, the locking mechanisms at both ends of the receiving beam can respectively lock and support the free ends of the two sealing net crossing arms extended across the transmission line, so that they are combined with each other to form a rectangular frame.

[0010] Preferably, each locking mechanism includes a receiving seat and a locking push rod, the receiving seat is fixed at both ends of the receiving beam, and an upwardly opening receiving groove is provided at the upper end of the receiving seat, and the receiving groove is opened in the direction of crossing the beam, and the free end of the sealing net crossing arm is provided with a connecting column matching the receiving groove, and the connecting column can enter the receiving groove from the upper end opening of the receiving groove, and the locking push rod is horizontally arranged on the receiving seat and located on one side of the receiving groove, and the telescopic end of the locking push rod faces the connecting column entering the receiving groove, and a locking card seat matching the connecting column is provided at the telescopic end of the locking push rod, and the locking push rod can telescopically move in the direction of the receiving groove. When the locking push rod is extended, the locking card seat at the telescopic end can be stuck on the side wall of the connecting column entering the receiving groove to lock the connecting column in the receiving groove.

[0011] Preferably, a plurality of rollers are arranged transversely along the length direction of the upper ends of the spanning beam and the receiving beam, and the axial direction of the rollers is consistent with the length direction of the receiving beam.

[0012] Preferably, the upper ends of the spanning beam and the receiving beam are both provided with a plurality of rollers arranged transversely along their length direction, and the axial direction of the rollers is consistent with the length direction of the receiving beam; and the spanning beam and the receiving beam are respectively foldable.

[0013] Preferably, the locking mechanism includes a supporting locking rod and two guide plates, the supporting locking rod is laterally arranged at the end of the receiving beam, the two guide plates are circular ring-shaped and fixedly sleeved on the supporting locking rod, the two guide plates are spaced apart, a receiving groove is formed on the supporting locking rod, and the notch of the receiving groove is inclined outward to form a trumpet shape, the free end of the sealing net spanning arm is provided with a downward-opening connecting hook, the connecting hook matches the receiving groove, and a groove matching the supporting locking rod is laterally opened on the side of the inner top of the connecting hook opening away from the sealing net spanning arm, after the connecting hook is hooked in the receiving groove, the supporting locking rod located in the receiving groove can enter the groove.

[0014] Preferably, a first rotating base is provided at the upper end of the main crossing vehicle, and a first supporting leg is laterally provided at the upper end of the first rotating base. The main lifting frame is hingedly provided at one end of the first supporting leg, and a first hydraulic cylinder is hingedly provided at the other end of the first supporting leg. The telescopic end of the first hydraulic cylinder is hingedly connected to the side wall of the main lifting frame. The main lifting frame is supported by the first hydraulic cylinder so that the main lifting frame can be erected on the first rotating base, or the main lifting frame can be flipped and folded to one side of the first rotating base. The first rotating base can drive the main lifting frame to rotate horizontally to adjust the direction of the cross-line sealing mechanism. The auxiliary lifting frame is supported by a second hydraulic cylinder and a second rotating base, and the auxiliary lifting frame is supported by the second hydraulic cylinder so that the auxiliary lifting frame can be erected on the second rotating base or flipped and folded to one side of the second rotating base. The second rotating base can drive the auxiliary lifting frame to rotate horizontally to adjust the direction of the locking net mechanism.

[0015] Preferably, the main straddling vehicle and the auxiliary straddling vehicle are respectively provided with leveling legs around them.

[0016] It can be seen from the above technical solution that the high-altitude net sealing double-arm crossing vehicle for the construction of overhead power lines provided in this application includes a main crossing vehicle, an auxiliary crossing vehicle, a cross-line net sealing mechanism and a receiving and locking net mechanism. The upper end of the main crossing vehicle is provided with a main lifting frame that can be freely raised and lowered, and the upper end of the auxiliary crossing vehicle is provided with an auxiliary lifting frame that can be freely raised and lowered. The cross-line net sealing mechanism is horizontally arranged on the upper end of the main lifting frame, and the receiving and locking net mechanism is horizontally arranged on the upper end of the auxiliary lifting frame. When the overhead line of the transmission line is crossed over, the main crossing vehicle and the auxiliary crossing vehicle are moved to the opposite sides of the transmission line that needs to be crossed over, the main lifting frame and the auxiliary lifting frame are started to respectively raise the cross-line net sealing mechanism and the receiving and locking net mechanism to the two sides above the transmission line that needs to be crossed over. The cross-line net sealing mechanism can cross horizontally from above the transmission line and then combine with the receiving and locking net mechanism to form a net sealing protection above the transmission line. Its beneficial effects are: by using the main crossing vehicle and the auxiliary crossing vehicle as mobile carriers, the maneuverability is high, which can greatly improve the mechanization level of line crossing construction, and the main crossing vehicle and the auxiliary crossing vehicle can provide stable support for the cross-line sealing network mechanism and the receiving locking network mechanism on both sides of the transmission line that needs to be crossed; by raising the cross-line sealing network mechanism and the receiving locking network mechanism to the top of the transmission line and then combining them to seal the network, the sealing network protection can be quickly achieved, the construction efficiency is high, the stability is good, it can provide effective support and protection for the transmission line in the crossing construction, can meet the progress requirements of the crossing construction, and make the overhead line crossing construction more convenient and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the invention crossing an overhead transmission line.

[0018] Figure 2 This is a structural diagram of the cross-line sealing mechanism in the extended state.

[0019] Figure 3 This is a structural diagram of the cross-line sealing mechanism in the folded state.

[0020] Figure 4 Schematic diagram of the local connection structure between the protective net and the sealing net spanning arm.

[0021] Figure 5 This is a schematic diagram of the locking net mechanism structure.

[0022] Figure 6 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0023] Figure 7 for Figure 5 A partial enlarged schematic diagram of point B in the middle.

[0024] Figure 8 for Figure 1 A partial enlarged schematic diagram of point C in the middle.

[0025] Figure 9 This is a schematic diagram of the state after the receiving beam is lowered.

[0026] Figure 10 This is a schematic diagram of the folded state of the supporting beam.

[0027] Figure 11 and Figure 12 It is a schematic diagram of the connection structure between the receiving beam and the sealing net spanning arm in another preferred embodiment.

[0028] Figure 13 for Figure 11 A local enlarged schematic diagram of point D in the middle.

[0029] Figure 14 It is a side structural schematic diagram of the locking mechanism in another preferred embodiment.

[0030] Figure 15 It is a schematic diagram of the three-dimensional structure of the locking mechanism in another preferred embodiment.

[0031] Figure 16 Schematic diagram of the connecting hook structure in another preferred embodiment.

[0032] In the figure: main crossing vehicle 10, auxiliary crossing vehicle 20, main lifting frame 11, auxiliary lifting frame 21, cross-line sealing net mechanism 30, crossing beam 31, protective net 32, sealing net crossing arm 33, slewing mechanism 34, slewing support 341, slewing motor 342, guide rail 35, connecting ring 36, sprocket 37, traction chain 38, traction motor 39, connecting column 331, connecting rope 332, connecting hook 333, hook handle 3331, hook arm 3332, Hook groove 3333, groove 334, receiving locking net mechanism 40, receiving cross beam 41, locking mechanism 42, receiving seat 421, locking push rod 422, receiving groove 423, locking clamping seat 424, supporting locking rod 425, guide plate 426, connecting pin 43, first rotating base 12, first supporting foot 13, first hydraulic cylinder 14, second rotating base 22, second supporting foot 23, second hydraulic cylinder 24, roller 50, leveling leg 60. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Please see Figure 1 The embodiment of the present invention provides a high-altitude network sealing double-arm crossing vehicle for the construction of power overhead lines, including a main crossing vehicle 10, an auxiliary crossing vehicle 20, a cross-line network sealing mechanism 30 and a receiving and locking network mechanism 40. A main lifting frame 11 that can be freely lifted and lowered is provided on the upper end of the main crossing vehicle 10, and an auxiliary lifting frame 21 that can be freely lifted and lowered is provided on the upper end of the auxiliary crossing vehicle 20. The cross-line network sealing mechanism 30 is horizontally arranged on the upper end of the main lifting frame 11, and the receiving and locking network mechanism 40 is horizontally arranged on the upper end of the auxiliary lifting frame 21. When the overhead line of the transmission line is crossed for construction, the main crossing vehicle 10 and the auxiliary crossing vehicle 20 can be moved to the opposite sides of the transmission line that needs to be crossed for construction. The main crossing vehicle 10 and the auxiliary crossing vehicle 20 can be moved to the opposite sides of the transmission line that needs to be crossed for construction. The vehicles 20 are parked relative to each other and maintain a preset safety distance. The main lifting frame 11 and the auxiliary lifting frame 21 are started to respectively raise the cross-line sealing net mechanism 30 and the receiving locking net mechanism 40 to both sides above the transmission line that needs to be crossed for construction, so that the cross-line sealing net mechanism 30 and the receiving locking net mechanism 40 maintain a predetermined safety height with the transmission line to be crossed for construction, and are directly opposite to each other, and the cross-line sealing net mechanism 30 is controlled to extend from the upper direction of the transmission line to the receiving locking net mechanism 40 to cross the transmission line. The receiving locking net mechanism 40 can lock and support the cross-line sealing net mechanism 30 extending across the transmission line, so that they are combined with each other to form a sealing net protection above the transmission line.

[0035] Please see Figures 1 to 3Specifically, the cross-line sealing net mechanism 30 includes a crossing beam 31, a protective net 32 ​​and two sealing net crossing arms 33. The crossing beam 31 is horizontally arranged at the upper end of the main lifting frame 11. A rotating mechanism 34 is respectively provided at both ends of the crossing beam 31. One end of the two sealing net crossing arms 33 is respectively provided on the rotating mechanism 34. The other end of the two sealing net crossing arms 33 is a free end. The free ends of the two sealing net crossing arms 33 extend parallel to the same side of the crossing beam 31. The protective net 32 ​​is an insulating The protective net 32 ​​is made of a flexible net material, and both ends of the protective net 32 ​​are respectively hung on two net-closing crossing arms 33. The protective net 32 ​​is supported and unfolded by the two net-closing crossing arms 33. The two net-closing crossing arms 33 can be driven by the rotating mechanism 34 to rotate and fold parallel to the direction of the crossing beam 31, so that the protective net 32 ​​is gathered on one side of the crossing beam 31. The two net-closing crossing arms 33 can also be driven by the rotating mechanism 34 to rotate parallel to the outside direction of the crossing beam 31, so that it remains perpendicular to the crossing beam 31, and the protective net 32 ​​is unfolded.

[0036] Please see Figure 2 and Figure 6 The rotating mechanism 34 includes a rotating support 341 and a rotating motor 342. The rotating support 341 is arranged parallel to the end of the crossing beam 31. One end of the sealing net crossing arm 33 is fixed to the upper end of the rotating support 341. The rotating support 341 is a freely rotatable gear seat. The rotating motor 342 is a servo motor, which is arranged at the lower end or one side of the gear seat. The shaft end of the rotating motor 342 is provided with a driving gear that meshes with the gear seat. The rotating motor 342 and the rotating support 341 can also be combined with a worm gear structure. The rotation angle of the rotating support 341 can be controlled by the rotating motor 342, thereby driving the sealing net crossing arm 33 to fold in the direction of crossing the beam 31, or rotate and open in parallel in the direction of the receiving beam 41.

[0037] Please see Figure 1 and Figure 5 The receiving and locking net mechanism 40 includes a receiving beam 41 and two locking mechanisms 42. The receiving beam 41 is horizontally arranged at the upper end of the auxiliary lifting frame 21. The two locking mechanisms 42 are respectively arranged at both ends of the receiving beam 41. The distance between the two locking mechanisms 42 is the same as the distance between the free ends of the two net-sealing spanning arms 33 after the protective net 32 ​​is unfolded. The two locking mechanisms 42 can support and lock the free ends of the two net-sealing spanning arms 33, so that the spanning beam 31, the receiving beam 41 and the two net-sealing spanning arms 33 are combined with each other to form a rectangular frame, which is used to form a net-sealing protection above the transmission line under construction.

[0038] Please see Figure 1 、 Figure 5 、 Figure 7 and Figure 8The locking mechanism 42 comprises a receiving seat 421 and a locking push rod 422. The receiving seat 421 is fixed to the end of the receiving beam 41. A receiving groove 423 opening upward is provided at the upper end of the receiving seat 421. The receiving groove 423 is opened in the direction of crossing the beam 31. The free end of the sealing net crossing arm 33 is provided with a connecting post 331 matching the receiving groove 423. The connecting post 331 extends along the length direction of the sealing net crossing arm 33. The connecting post 331 can enter the receiving groove 423 from the upper end opening of the receiving groove 423. The locking push rod 422 is arranged horizontally on the receiving seat 421 and is located on one side of the receiving groove 423. The locking push rod 422 2 is an electric push rod, an air cylinder or a hydraulic cylinder. The telescopic end of the locking push rod 422 faces the receiving groove 423. A locking card seat 424 is provided at the telescopic end of the locking push rod 422. The locking card seat 424 has a groove matching the connecting column 331 on the side facing the receiving groove 423. The locking push rod 422 can telescopically move in the direction of the receiving groove 423. When the locking push rod 422 extends in the direction of the receiving groove 423, the groove of the locking card seat 424 can be stuck on the side wall of the connecting column 331 entering the receiving groove 423, so as to lock the connecting column 331 in the receiving groove 423, so that the free ends of the two sealing net spanning arms 33 are combined with the two ends of the receiving beam 41.

[0039] The main crossing vehicle 10 and the auxiliary crossing vehicle 20 are crawler-type mobile work vehicles or wheeled mobile work vehicles, which can be moved according to the network blocking position. A distance sensor is set on the auxiliary crossing vehicle 20. When the overhead line of the transmission line is crossed over, the main crossing vehicle 10 and the auxiliary crossing vehicle 20 are moved to the opposite sides of the transmission line that needs to be crossed over. The distance sensor can detect the distance between the auxiliary crossing vehicle 20 and the main crossing vehicle 10, so that the staff can accurately grasp the distance between the main crossing vehicle 10 and the auxiliary crossing vehicle 20.

[0040] The main lifting frame 11 and the auxiliary lifting frame 21 are selected from one of a scissor-type hydraulic lifting frame, a crank-arm hydraulic lifting arm or a multi-stage hydraulic cylinder telescopic arm. Hydraulic stations are respectively provided on the main crossing vehicle 10 and the auxiliary crossing vehicle 20. The main lifting frame 11 and the auxiliary lifting frame 21 are powered by the hydraulic stations and can be freely raised and lowered on the upper ends of the main crossing vehicle 10 and the auxiliary crossing vehicle 20 respectively. Distance sensors are also respectively provided on the main lifting frame 11 and the auxiliary lifting frame 21 to facilitate staff to accurately grasp the lifting height of the main lifting frame 11 and the auxiliary lifting frame 21.

[0041] Please see Figure 1In the specific implementation, the main crossing vehicle 10 and the auxiliary crossing vehicle 20 can be moved to the opposite sides of the transmission line that needs to be crossed, and the main crossing vehicle 10 and the auxiliary crossing vehicle 20 are parked relative to each other and maintain a preset safety distance. Before the main lifting frame 11 is raised, the protective net 32 ​​on one side of the crossing beam 31 is in a retracted state. The main lifting frame 11 and the auxiliary lifting frame 21 are started to respectively raise the crossing beam 31 and the receiving beam 41 to the two sides above the transmission line that needs to be crossed, so that the crossing beam 31 and the receiving beam 41 remain parallel to each other, and the crossing beam 31 is One side of the protective net 32 ​​is arranged to face the receiving beam 41, and the two net-sealing crossing arms 33 are driven to rotate and open toward the receiving beam 41 at the same time by controlling the rotating mechanism 34 at both ends of the crossing beam 31, so that the connecting columns 331 at the free ends of the two net-sealing crossing arms 33 are respectively extended into the receiving grooves 423 at both ends of the receiving beam 41, and the locking push rod 422 is activated to lock the free ends of the two net-sealing crossing arms 33 respectively. At this time, the protective net 32 ​​is unfolded directly above the transmission line under the support of the two net-sealing crossing arms 33 to form a net-sealing protection.

[0042] Please continue to see Figure 7 and Figure 8 The support bracket 421 of the support bracket 41 is connected to the support bracket 423 of the support bracket 41 so as to prevent the support bracket 423 from sliding out of the support bracket 41 and causing the support bracket 423 to slide in and out of the support bracket 41.

[0043] Please continue to see Figure 11 and Figure 16In a preferred embodiment, the locking mechanisms 42 at both ends of the receiving crossbeam 41 are connected to the sealing net spanning arm 33 in a hooked manner. Specifically, each locking mechanism 42 includes a supporting locking rod 425 and two guide plates 426. The supporting locking rod 425 is laterally arranged at the end of the receiving crossbeam 41. The axial direction of the supporting locking rod 425 is consistent with the extension direction of the receiving crossbeam 41. The two guide plates 426 are annular structures and are fixedly sleeved on the supporting locking rod 425. The two guide plates 426 are spaced apart. A receiving groove 423 is formed on the supporting locking rod 425, and the notch of the receiving groove 423 is inclined outward to form a trumpet shape. The free end of the sealing net spanning arm 33 is provided with a downward-opening The connecting hook 333 is composed of a hook handle 3331 and two hook arms 3332. The hook handle 3331 is fixed horizontally to the free end of the sealing net spanning arm 33 and extends along the length direction of the sealing net spanning arm 33. The two hook arms 3332 are vertically arranged at the lower end of the hook handle 3331 and are welded and fixed at intervals along the length direction of the hook handle 3331. A hook groove 3333 with an open lower end that matches the support locking rod 425 is formed between the two hook arms 3332, and the open end of the hook groove 3333 is inclined outward to form a trumpet mouth, so that the support locking rod 425 can enter the hook groove 3333 formed between the two hook arms 3332. The guide plate 426 can play a role on both sides of the two hook arms 3332. The hook arm 3332 has the function of limiting and preventing the hook arm 3332 from moving left and right. A groove 334 matching the supporting locking rod 425 is provided on the inner top of the hook groove 3333 away from the side of the sealing net crossing arm 33. The groove 334 is opened horizontally and is perpendicular to the hook handle 3331. When the connecting hook 333 is hooked with the locking mechanism 42, after the crossing beam 31 and the receiving beam 41 are raised to both sides above the transmission line that needs to be crossed, the receiving beam 41 can be slightly lowered to make it lower than the height of the crossing beam 31. At this time, the two sealing net crossing arms 33 are controlled to rotate and open in parallel in the direction of the receiving beam 41, so that it remains perpendicular to the crossing beam 31. In this way, the two sides of the receiving beam 41 can be connected The receiving groove 423 at the end is directly below the hook groove 3333 of the connecting hook 333 at the free ends of the two sealing net crossing arms 33. At this time, the receiving beam 41 is controlled to rise, so that the supporting locking rods 425 in the receiving grooves 423 at both ends of the receiving beam 41 can be inserted into the hook grooves 3333 of the connecting hooks 333 at the free ends of the two sealing net crossing arms 33, and the receiving beam 41 is driven by the auxiliary lifting frame 21 to move parallel to the direction away from the crossing beam 31, so that the supporting locking rod 425 inserted into the hook groove 3333 can be moved horizontally into the groove 334. In this way, the supporting locking rod 425 can be hooked by the groove 334, and the groove 334 is used to limit the supporting locking rod 425, so that they are stably connected to each other and do not separate.

[0044] Please see Figure 2 and Figure 4The two ends of the protective net 32 ​​are fixed to the traction chains 38 of the two sealing net spanning arms 33 by connecting ropes 332, and are aligned with each other, and the other ends of the protective net 32 ​​are fixed to the two ends of the protective net spanning arms 33 by connecting ropes 332. The two net-sealing spanning arms 33 are close to one end of the spanning beam 31, and the connecting rope 332 is a cable tie or nylon rope. At the ends of the two net-sealing spanning arms 33, there are traction motors 39 connected to the corresponding shafts of the sprockets 37. The traction motors 39 are servo motors. The traction motors 39 drive the two sprockets 37 on the two net-sealing spanning arms 33 to rotate synchronously, in the same direction and at the same speed. The sprockets 37 drive the traction chains 38 to reciprocate synchronously, in the same direction and at the same speed along the length direction of the two net-sealing spanning arms 33. The protective net 32 ​​can be pulled by the traction chain 38 to shrink in the direction of crossing the beam 31, or the protective net 32 ​​can be pulled by the traction chain 38 to move toward the free end of the closing net crossing arm 33, so that the protective net 32 ​​can be unfolded in parallel between the two closing net crossing arms 33. In this way, before the two closing net crossing arms 33 rotate and fold in parallel in the direction of crossing the beam 31, the protective net 32 ​​can be gathered in the crossing beam 31, which can prevent the protective net 32 ​​from sagging too much and getting entangled or caught by foreign objects.

[0045] Please see Figure 2 and Figure 5 Furthermore, the upper ends of the crossing beam 31 and the receiving beam 41 are provided with a plurality of freely rotatable rollers 50 arranged transversely along their length directions. The axial directions of the rollers 50 are consistent with the length directions of the receiving beam 41, and can play a supporting and guiding role. For example, when the overhead transmission line falls on the rollers 50 of the crossing beam 31 and the receiving beam 41, the rollers 50 can support the transmission line. When the transmission line is pulled to move, the rollers 50 can adaptively rotate following the transmission line to play an auxiliary guiding role, so as to facilitate the passage of the overhead transmission line from the upper ends of the crossing beam 31 and the receiving beam 41.

[0046] Please see Figure 1 、 Figure 9 and Figure 10Furthermore, in a preferred embodiment, the main lifting frame 11 and the auxiliary lifting frame 21 adopt a multi-stage hydraulic cylinder telescopic arm structure. In order to reduce the height space occupied by the main lifting frame 11 and the auxiliary lifting frame 21 and facilitate the movement of the main crossing vehicle 10 and the auxiliary crossing vehicle 20, the main lifting frame 11 and the auxiliary lifting frame 21 are articulated and can be folded and stored to one side of the main crossing vehicle 10 and the auxiliary crossing vehicle 20 respectively to reduce the occupied space. Specifically, a first rotating base 12 is provided at the upper end of the main crossing vehicle 10, and a first supporting leg 13 is laterally provided at the upper end of the first rotating base 12. The main lifting frame 11 is hingedly provided at one end of the first supporting leg 13, and a first hydraulic cylinder 14 is hingedly provided at the other end of the first supporting leg 13. The telescopic end of the first hydraulic cylinder 14 is hingedly connected to the side wall of the main lifting frame 11. The main lifting frame 11 is supported by the first hydraulic cylinder 14 so that the main lifting frame 11 can be erected on the first rotating base 12, or the main lifting frame 11 can be flipped and folded to one side of the first rotating base 12. The first rotating base 12 is a horizontal rotating seat, which is driven by an electric motor and can drive the main lifting frame 11 to rotate horizontally to adjust the cross-line sealing mechanism 30. direction; a second rotating base 22 is provided at the upper end of the auxiliary crossing vehicle 20, and a second supporting leg 23 is laterally provided at the upper end of the second rotating base 22. The main lifting frame 11 is hingedly provided at one end of the second supporting leg 23, and a second hydraulic cylinder 24 is hingedly provided at the other end of the second supporting leg 23. The telescopic end of the second hydraulic cylinder 24 is hingedly connected to the side wall of the auxiliary lifting frame 21. The auxiliary lifting frame 21 is supported by the second hydraulic cylinder 24 so that the auxiliary lifting frame 21 can be erected on the second rotating base 22, or the auxiliary lifting frame 21 can be flipped and folded to one side of the second rotating base. The second rotating base 22 is a horizontal rotating seat, which is driven by an electric motor to drive the auxiliary lifting frame 21 to rotate horizontally to adjust the direction of the receiving locking net mechanism 40.

[0047] Please continue to see Figure 10 Furthermore, in order to facilitate movement and transportation, the connecting beam 41 is composed of at least two sections of beam frames, and the two adjacent beam frames are pin-connected and fixed to each other on both sides by connecting pins 43. When in use, they can be unfolded in a straight line. When use is finished and transfer is required, the connecting pin 43 on one side of the connection between the two adjacent beam frames can be removed, and the two adjacent beam frames can be folded together, which can reduce the overall length of the connecting beam 41 and reduce the occupied space.

[0048] Please continue to see Figure 1Furthermore, in order to facilitate the leveling of the main spanning vehicle 10 and the auxiliary spanning vehicle 20 and improve the stability of the main spanning vehicle 10 and the auxiliary spanning vehicle 20, leveling legs 60 are respectively arranged around the main spanning vehicle 10 and the auxiliary spanning vehicle 20. The leveling legs 60 all adopt an articulated hydraulic cylinder leg structure and are driven by a hydraulic station arranged on the main spanning vehicle 10 and the auxiliary spanning vehicle 20. The main spanning vehicle 10 and the auxiliary spanning vehicle 20 are respectively provided with a hydraulic control valve, a leveling controller, and an inclination sensor. The inclination sensor detects the inclination angle of the chassis of the main spanning vehicle 10 and the auxiliary spanning vehicle 20 with the ground plane, converts the angle signal into a digital signal and transmits it to the leveling controller. The leveling controller reaches the hydraulic station and the hydraulic control valve after power amplification according to the predetermined leveling instruction. The hydraulic control valve adjusts the telescopic stroke of the hydraulic cylinder of each leveling leg 60 to level the chassis of the main spanning vehicle 10 and the auxiliary spanning vehicle 20.

[0049] The above disclosure is only a preferred embodiment of the present invention, and it is certainly not intended to limit the scope of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A high-altitude net sealing double-arm crossing vehicle for overhead power line construction, characterized by: It includes a main crossing vehicle, an auxiliary crossing vehicle, a cross-line sealing net mechanism and a receiving and locking net mechanism. The upper end of the main crossing vehicle is provided with a main lifting frame that can be freely lifted and lowered, and the upper end of the auxiliary crossing vehicle is provided with an auxiliary lifting frame that can be freely lifted and lowered. The cross-line sealing net mechanism is laterally arranged on the upper end of the main lifting frame, and the receiving and locking net mechanism is laterally arranged on the upper end of the auxiliary lifting frame. The main crossing vehicle and the auxiliary crossing vehicle can be moved to the opposite sides of the transmission line that needs to be crossed over, and the cross-line sealing net mechanism and the receiving and locking net mechanism can be raised to the two sides above the transmission line that needs to be crossed over by the main lifting frame and the auxiliary lifting frame, so that they are opposite to each other, and the cross-line sealing net mechanism can extend from the upper side of the transmission line to the direction of the receiving and locking net mechanism to cross the transmission line. The receiving and locking net mechanism can lock and support the cross-line sealing net mechanism extending across the transmission line, so that they are combined with each other to form a sealing net protection above the transmission line.

2. The high-altitude net sealing double-arm spanning vehicle for overhead power line construction according to claim 1, characterized in that: The cross-line sealing net mechanism includes a crossing beam, a protective net and two sealing net crossing arms, the crossing beam is horizontally arranged at the upper end of the main lifting frame, and a rotating mechanism is respectively provided at both ends of the crossing beam, one end of the two sealing net crossing arms is respectively arranged on the rotating mechanism, and the other end of the two sealing net crossing arms is a free end, and the free ends of the two sealing net crossing arms are respectively facing the receiving and locking net mechanism, and the two ends of the protective net are respectively hung on the two sealing net crossing arms, and the rotating mechanism can drive the two sealing net crossing arms to rotate and fold in parallel in the direction of the crossing beam, or drive the two sealing net crossing arms to rotate and open in the direction of the receiving and locking net mechanism. After the two sealing net crossing arms are rotated and folded in the direction of the crossing beam, the protective net can be retracted. After the two sealing net crossing arms are rotated and opened in the direction of the receiving and locking net mechanism, they can be extended to cross the power transmission line that needs to be constructed, and the protective net can be unfolded parallel to the power transmission line. The receiving and locking net mechanism can lock and support the free ends of the two sealing net crossing arms extending across the power transmission line, so that they are combined with each other to form a sealing net protection above the power transmission line.

3. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to claim 2, characterized in that: The slewing mechanism includes a slewing support and a slewing motor. The slewing support is arranged parallel to the end of the crossing beam. One end of the sealing net crossing arm is fixed to the upper end of the slewing support. The slewing motor is arranged at the lower end or one side of the slewing support. The slewing motor drives the slewing support to rotate parallel to the end of the crossing beam to drive the sealing net crossing arm to fold toward the direction of the crossing beam, or rotate and open parallel to the direction of the locking net mechanism.

4. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to claim 3, characterized in that: The two sealing net spanning arms are respectively provided with guide rails along their length directions, and a number of connecting rings are evenly distributed along the length directions of the edges at both ends of the protective net connected to the two sealing net spanning arms. The connecting rings at both ends of the protective net are respectively clamped on the two sealing net spanning arm guide rails in sequence and can slide freely along the guide rails. Freely rotatable sprockets are respectively provided at the two ends of the two sealing net spanning arms, and a matching traction chain is annularly sleeved on the two sprockets of each sealing net spanning arm. The opposite ends of the two ends of the protective net with the connecting ring are fixed on the traction chain, and the other opposite ends are respectively fixed At one end of the two net-sealing crossing arms close to the crossing beam, traction motors connected to the corresponding shafts of the sprockets are respectively provided at the ends of the two net-sealing crossing arms. The traction motors respectively drive the two sprockets on the two net-sealing crossing arms to rotate synchronously, in the same direction and at the same speed. The sprockets drive the traction chain to reciprocate synchronously, in the same direction and at the same speed along the length direction of the two net-sealing crossing arms. The traction chain pulls the protective net to retract in the direction of the crossing beam, or pulls the protective net to move in the direction of the receiving locking net mechanism, so that the protective net can be unfolded in parallel between the crossing beam and the receiving locking net mechanism to form a net-sealing protection above the transmission line.

5. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to claim 2, characterized in that: The receiving and locking net mechanism includes a receiving beam and two locking mechanisms. The receiving beam is horizontally arranged at the upper end of the auxiliary lifting frame, opposite to the crossing beam and parallel to each other. The two locking mechanisms are respectively arranged at the two ends of the receiving beam. After the free ends of the two sealing net crossing arms are extended toward the two ends of the receiving beam to cross the transmission line, the locking mechanisms at both ends of the receiving beam can respectively lock and support the free ends of the two sealing net crossing arms extended across the transmission line, so that they are combined with each other to form a rectangular frame.

6. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to claim 5, characterized in that: The locking mechanism comprises a receiving seat and a locking push rod, wherein the receiving seat is fixed at both ends of the receiving beam, and an upwardly opening receiving groove is provided at the upper end of the receiving seat, and the receiving groove is opened in the direction of crossing the beam, and the free end of the sealing net crossing arm is provided with a connecting column matching the receiving groove, and the connecting column can enter the receiving groove from the upper end opening of the receiving groove, and the locking push rod is arranged horizontally on the receiving seat and is located on one side of the receiving groove, and the telescopic end of the locking push rod faces the connecting column entering the receiving groove, and a locking card seat matching the connecting column is provided at the telescopic end of the locking push rod, and the locking push rod can telescopically move in the direction of the receiving groove. When the locking push rod is extended, the locking card seat at the telescopic end can be stuck on the side wall of the connecting column entering the receiving groove to lock the connecting column in the receiving groove.

7. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to claim 5, characterized in that: The upper ends of the spanning beam and the receiving beam are both provided with a plurality of rollers arranged transversely along the length direction thereof, and the axial directions of the rollers are consistent with the length direction of the receiving beam; the spanning beam and the receiving beam are respectively foldable.

8. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to claim 5, characterized in that: The locking mechanism includes a supporting locking rod and two guide plates. The supporting locking rod is laterally arranged at the end of the receiving beam. The two guide plates are circular ring-shaped and fixedly sleeved on the supporting locking rod. The two guide plates are spaced apart to form a receiving groove on the supporting locking rod, and the notch of the receiving groove is inclined outward to form a trumpet shape. The free end of the sealing net spanning arm is provided with a downward-opening connecting hook, and the connecting hook matches the receiving groove. A groove matching the supporting locking rod is laterally opened on the side of the inner top of the connecting hook opening away from the sealing net spanning arm. After the connecting hook is hooked in the receiving groove, the supporting locking rod located in the receiving groove can enter the groove.

9. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to claim 1, characterized in that: A first rotating base is provided at the upper end of the main spanning vehicle, and a first supporting leg is laterally provided at the upper end of the first rotating base. The main lifting frame is hingedly provided at one end of the first supporting leg, and a first hydraulic cylinder is hingedly provided at the other end of the first supporting leg. The telescopic end of the first hydraulic cylinder is hingedly connected to the side wall of the main lifting frame. The main lifting frame is supported by the first hydraulic cylinder so that the main lifting frame can be erected on the first rotating base or flipped and folded to one side of the first rotating base. The first rotating base can drive the main lifting frame to rotate horizontally to adjust the direction of the cross-line sealing mechanism. A second rotating base is provided at the upper end of the auxiliary crossing vehicle, and a second supporting leg is laterally provided at the upper end of the second rotating base. The main lifting frame is hingedly provided at one end of the second supporting leg, and a second hydraulic cylinder is hingedly provided at the other end of the second supporting leg. The telescopic end of the second hydraulic cylinder is hingedly connected to the side wall of the auxiliary lifting frame. The auxiliary lifting frame is supported by the second hydraulic cylinder so that the auxiliary lifting frame can be erected on the second rotating base or flipped and folded to one side of the second rotating base. The second rotating base can drive the auxiliary lifting frame to rotate horizontally to adjust the direction of the receiving locking net mechanism.

10. The high-altitude net sealing double-arm straddling vehicle for overhead power line construction according to any one of claims 1 to 9, characterized in that: Leveling legs are respectively provided on the four sides of the main straddling vehicle and the auxiliary straddling vehicle.

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