Portable labor-saving wire ejector capable of live working

Abstract

The invention discloses a portable labor-saving wire jacking device capable of live working, which comprises a bracket, two ends of the bracket are respectively provided with a connecting plate and a bearing plate, and the connecting plate and the bearing plate are distributed in a staggered manner; the clamping piece is arranged on the connecting plate; the control piece is arranged on the bearing plate; the supporting rod is detachably connected to the control piece, and a wire supporting rod is arranged at the end, away from the control piece, of the supporting rod. A single person can complete carrying and on-pole installation, meanwhile, a traditional manual driving mode is abandoned, an operator does not need to climb to an electric pole for short-distance operation, the whole-process actions of device fixing, wire jacking and the like can be completed only through a remote controller, physical output is greatly reduced, and the working efficiency is improved. The single operation time is obviously shortened, and the insulator replacement efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of fire safety, and particularly to a portable labor-saving wire-lifting device that can perform live operations. Background Art

[0002] In the traditional operation method of carrying wires on the shoulder, the operator needs to be in close contact with live components, with a high risk of electric shock and no safety distance guarantee measures. It is overall bulky and difficult for a single person to carry and install on the pole. The operation depends on manual or manpower drive, which is laborious and time-consuming during the operation process. The stability of the cross-arm mounting structure of the existing wire-lifting devices is poor and it is difficult to adapt to wires with large tension. There is no dedicated cross-arm carrying hanging bracket, and the distance between the device and the live wire during operation no longer meets the requirements of safety codes, posing potential hazards such as discharge and short circuit. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention lies in: the problem that the cross-arm mounting structure of the existing tools is insufficient in stability and difficult to adapt to wires with large tension.

[0004] The above technical problem is solved by the following technical solutions: The present invention provides a portable labor-saving wire-lifting device that can perform live operations, which includes a bracket, with connection plates and bearing plates respectively provided at both ends of the bracket, and the connection plates and bearing plates are arranged in an alternating manner; a clamping member provided on the connection plate; a control member provided on the bearing plate; a support rod detachably connected to the control member, and a wire-supporting rod is provided at the end of the support rod far from the control member.

[0005] In a preferred embodiment of the portable labor-saving wire-lifting device that can perform live operations according to the present invention: The clamping member includes a sliding groove opened on the upper side of the connection plate and penetrating to its lower surface, a driving groove opened on the upper surface of the connection plate, the driving groove is connected to the sliding groove, a motor fixedly provided in the driving groove, a lead screw provided at the output end of the motor, a bearing embedded in the inner wall of the sliding groove on the side far from the driving groove, the other end of the lead screw is coaxially embedded in the inner ring of the bearing, and a slider sleeved outside the lead screw; A threaded hole is penetratingly opened in the middle of the slider, and the internal thread of the threaded hole is adapted to mesh with the external thread of the lead screw.

[0006] In a preferred embodiment of the portable labor-saving wire-lifting device that can perform live operations according to the present invention: Bearing grooves extending along the length direction are opened on both inner walls of the sliding groove, the slider is in a "convex" shape, the two convex flanges on both sides of the slider are adapted to be embedded in the bearing grooves, a limiting block fixedly provided at the bottom of the slider, and a first clamping groove is opened on the upper side of the limiting block.

[0007] In a preferred embodiment of the portable, labor-saving wire-jacking device for live-line operation described in this invention: the snap-fit ​​component further includes an auxiliary block, which is fixedly disposed at one end of the bracket near the connecting plate. The auxiliary block is distributed parallel to the connecting plate. Two sets of fixing snap-fit ​​blocks are fixedly disposed on the side of the bracket near the connecting plate. Both sets of fixing snap-fit ​​blocks are located below the connecting plate and the auxiliary block. A second snap-fit ​​groove is provided on the upper side of both sets of fixing snap-fit ​​blocks. The first card slot and the second card slot have the same depth and are aligned horizontally.

[0008] In a preferred embodiment of the portable, labor-saving jacking device for live-line operation described in this invention: the control unit includes a control box, a battery, a circuit board and a jack disposed inside the control box, and a switch, a charging port, an antenna and a display provided on the upper surface of the control box; The battery is electrically connected to the motor, circuit board, jack, switch, charging port, antenna and display respectively, and the circuit board is signal connected to the motor, jack, switch, antenna and display respectively.

[0009] In a preferred embodiment of the portable, labor-saving jacking device for live-line operation described in this invention: the control component further includes a connecting column, one end of which is coaxially fixed to the power output end of the jack, and the other end is detachably connected to the support rod.

[0010] In a preferred embodiment of the portable, labor-saving jacking device for live-line operation described in this invention: a tenon is provided at one end of the support rod near the connecting column, and a mortise is provided at one end of the connecting column near the support rod to fit the tenon; the tenon and the mortise form a concave-convex fit structure.

[0011] In a preferred embodiment of the portable, labor-saving jacking device for live-line operation described in this invention: a connecting hole is provided longitudinally through the tenon, and an access hole coaxially aligned with the connecting hole is provided on the side wall of the mortise. The diameters of the connecting hole and the access hole are the same, and a wing bolt is fitted inside the access hole. The shank end of the wing bolt passes through the access hole and is screwed into the connection hole.

[0012] In a preferred embodiment of the portable, labor-saving jacking device for live-line operation described in this invention: it further includes a heightening rod, one end of which is provided with a tenon adapted to the mortise, and the other end of which is provided with a mortise adapted to the tenon; The heightening rod can be detachably connected to the support rod and the connecting column through the tenons and mortises at both ends.

[0013] In a preferred embodiment of the portable, labor-saving wire-lifting device for live-line operation described in this invention: the end of the wire-lifting rod away from the support rod is V-shaped, and an insulating rubber pad is fixed on the inner side wall of the wire-lifting rod.

[0014] The beneficial effects of this invention are as follows: By using an insulated support rod and an insulated rubber pad in the V-groove of the conductor support rod, a reliable insulating barrier is constructed between the live conductor and the aluminum alloy main body. At the same time, the stable cooperation between the Z-shaped main body bracket and the crossarm ensures that the distance between the device and the live conductor meets safety standards during operation. This completely avoids the risk of personnel coming into close contact with live parts in traditional shoulder-carrying operations, as well as the discharge and short-circuit hazards caused by the lack of insulation in existing tools. A single person can complete the transportation and installation on the pole. At the same time, it eliminates the traditional manual driving method. Operators do not need to climb to the pole for close operation. They can complete the entire process of fixing the device and lifting the conductor with just a remote control, which greatly reduces physical exertion, significantly shortens the time of a single operation, and improves the efficiency of insulator replacement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the overall structure of a portable, labor-saving jacking device capable of working under power is shown. Figure 2 A schematic diagram of the snap-fit ​​component in a portable, power-saving jacking device capable of live-line work is shown. Figure 3 A schematic diagram of the slider in a portable, power-saving jacking device capable of working under energized conditions is shown. Figure 4 A schematic diagram of the control components in a portable, labor-saving jacking device capable of live-line operation is shown. Figure 5 A schematic diagram of the internal structure of the control box in a portable, labor-saving jacking device capable of working under power is shown. Figure 6 It shows Figure 5 Enlarged view of point A in the middle; Figure 7 A schematic diagram of the lifting rod in a portable, power-saving jacking device capable of live-line operation is shown. Figure 8 A schematic diagram of the overall structure of a portable, labor-saving jacking device that can be operated under power is shown. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms may vary according to the intention of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be construed as simple names, but rather based on the meanings of the terms and the overall description of the present invention.

[0018] Referring to Figure 1-8 , this embodiment provides a portable labor-saving overhead line lifter that can perform live working, including a bracket 1. Connecting plates 11 and bearing plates 12 are respectively provided at both ends of the bracket 1, and the connecting plates 11 and the bearing plates 12 are arranged in an interleaved manner; a clamping member 2 is provided on the connecting plate 11; a control member 3 is provided on the bearing plate 12; a support rod 4 is detachably connected to the control member 3, and a wire supporting rod 41 is provided at one end of the support rod 4 away from the control member 3.

[0019] Furthermore, both the connecting plate 11 and the bearing plate 12 form a 90° angle with the bracket 1, and they are respectively arranged on both sides of both ends of the bracket 1, so that the overall device forms a "Z" - shaped structure, where the bearing plate 12 is the core bearing component for cross - arm connection.

[0020] Furthermore, a clamping member 2 is assembled on the bearing plate 12, and the bearing plate 12 can be fixed to the pole cross - arm through the clamping member 2; a sliding groove 21 penetrating the upper and lower sides is formed on the connecting plate 11, and a driving groove 22 is provided at a position near one end of the upper surface thereof. The driving groove 22 is connected to one end of the sliding groove 21 to form a convex - shaped groove structure. The motor 23 is fixed in the driving groove 22 by bolts, and the output shaft faces the direction of the sliding groove 21; one end of the screw rod 24 is coaxially fixed to the output end of the motor 23 through a coupling, and the other end is coaxially embedded in the inner ring of the bearing 25, while the bearing 25 is embedded in a reserved installation hole on the inner wall of the sliding groove 21 on the side away from the driving groove 22.

[0021] Among them, the slider 26 adopts a "convex" - shaped structure, and a threaded hole 27 is formed through the middle along the length direction. The threaded hole 27 is adapted to mesh with the external thread of the screw rod 24; at positions corresponding to the flanges of the slider 26 on both inner walls of the sliding groove 21, a bearing groove 28 extending along the length direction of the sliding groove 21 is formed, and the flanges on both sides of the slider 26 are adaptively embedded in the bearing groove 28. During operation, the motor 23 drives the screw rod 24 to rotate, which can drive the slider 26 to slide smoothly along the length direction of the sliding groove 21.

[0022] Furthermore, the limiting block 29 is fixed to the bottom of the slider 26 by welding, and has an "L" shaped structure. A first slot 210 is provided on its upper side; a second slot 213 is provided on the upper side of the fixing block 212, and the first slot 210 and the second slot 213 are aligned in parallel in the horizontal direction. The depth of both is adapted to the thickness of the crossbeam. The limiting block 29 and the fixing block 212 are arranged opposite to each other.

[0023] In use, firstly, the support plate 12 of the top wire device is overlapped and supported on the upper surface of the crossarm; then, the support plate 12 is moved horizontally along the width of the crossarm for position calibration, so that the second slots 213 of the two sets of fixing blocks 212 are in close contact with the side wall of the crossarm near the support 1, and the upper surface of the crossarm forms surface contact support with the lower surface of the auxiliary block 211 and the lower surface of the support plate 12 respectively; then, the drive motor 23 is started, and its output shaft drives the lead screw 24 to rotate around its own axis. Through the thread engagement between the external thread of the lead screw 24 and the internal thread hole 27 in the middle of the slider 26, the slider 26 is driven to move horizontally along the sliding groove 21 of the support plate 1 towards the support 1, thereby driving the limiting block 29 fixed to the bottom of the slider 26 to move synchronously away from the support 1. The crossarm moves in the direction of the limit block 29 until the first slot 210 of the limit block 29 is tightly clamped to the side wall of the crossarm away from the bracket 1. At the same time, the upper surface of the crossarm and the lower surface of the slider 26 form a surface contact support. Finally, through the bidirectional clamping action of the first slot 210 and the second slot 213 on the crossarm, and the upper and lower limiting action of the auxiliary block 211, the slider 26 and the upper surface of the crossarm, the top wire device is stably clamped and fixed on the crossarm, which can effectively prevent the equipment from axial displacement or radial shaking during operation. Through the self-adjusting movement of the slider 26 along the sliding groove 21, it can adapt to crossarms of different widths and meet the installation requirements of pin insulators of different specifications, which significantly broadens the application range of the equipment and improves its versatility and practicality.

[0024] The control and power output components of the jack are integrated into the control unit 3. The control unit 3 includes a control box, which is fixed to the support plate 12 by bolts. The control box integrates the core power and control components: the battery 32 is a rechargeable lithium battery 32, which is fixed inside the control box on one side; the circuit board 33 is a PCB integrated circuit board 33, which is fixed inside the control box near the battery 32. As the core control unit of the device, it integrates a motor 23 drive module, a hydraulic control module, a wireless signal receiving module, and a power monitoring module; the jack 34 is a miniature electric hydraulic jack 34, which is fixed inside the control box on the other side. The upper surface of the control box is sequentially equipped with a switch 35, a charging port 36, an antenna 37, and a display 38. The antenna 37 is used to receive control commands from the remote control. After the commands are processed by the chip, they can accurately output signals to control the forward and reverse rotation and start and stop of the motor 23, as well as the lifting and lowering actions of the hydraulic jack 34. One end of the connecting column 39 is coaxially fixed to the power output end of the jack 34 through a flange. With the lifting or lowering action of the jack 34, the connecting column 39 can be raised and lowered synchronously.

[0025] Furthermore, the device is also equipped with a support rod 4 and a wire guide rod 41, both of which are integrally formed. The end of the support rod 4 near the connecting column 39 is integrally formed with a tenon 42, which forms a clearance fit with the mortise 43 opened on the connecting column 39. Both the tenon 42 and the mortise 43 adopt a matching dovetail structure to provide guidance for assembly. During assembly, axial pressure is applied manually to press the tenon 42 into the mortise 43 until the end of the tenon 42 forms a tight surface contact with the inner wall of the mortise 43.

[0026] A connecting hole 44 is longitudinally through the tenon 42, and an access hole 45 is correspondingly provided on the side wall of the mortise 43 of the connecting post 39. When the tenon 42 is fully pressed into place, the access hole 45 and the connecting hole 44 can achieve precise coaxial alignment. A wing bolt 46 is fitted into the access hole 45. After the threaded end of the wing bolt 46 passes through the access hole 45 and is screwed into the connecting hole 44, a detachable fastening connection between the support rod 4 and the connecting post 39 can be achieved.

[0027] The end of the wire support rod 41 furthest from the support rod 4 is designed with a "V"-shaped opening structure, forming a wire support groove that adapts to the shape of the wire. An insulating rubber pad 48 is fixedly installed on the inner wall of the wire support groove by adhesive bonding. The insulating rubber pad 48 fits perfectly with the inner wall of the wire support groove and is sized to fit. Utilizing the self-centering characteristic of the "V"-shaped structure, the wire can be limited and stably supported. At the same time, the insulating rubber pad 48 not only meets the insulation safety requirements of live-line working scenarios, but also avoids wear and scratches on the wire sheath during the lifting process through flexible contact, thus balancing operational safety and wire protection.

[0028] This device, through the two-way clamping and positioning structure formed by the adjustable limiting block 29 and the relatively fixed fixing block 212, combined with the integrally formed support rod 4 and line support rod 41, has stable structural stability and load-bearing capacity. It effectively solves the problems of poor stability and limited load-bearing capacity of existing crossarm mounting tools due to the single clamping method and insufficient structural strength, which prevent them from being adapted to high-tension conductor operations.

[0029] Specifically, the coordinated clamping action of the adjustable limit block 29 and the fixed clamp block 212 can form a two-way positioning constraint on the crossarm, ensuring that the device always maintains axial and radial stability under the high tension of the conductor, without loosening, offset or shaking. After rigorous stress analysis and verification (based on the fundamental mechanical formula F=mg, where the gravitational acceleration g=9.8m / s²; when the maximum force on the lead screw 24 reaches 3kN, the entire device only produces a tiny elastic deformation of 1.87mm under the corresponding equivalent load of 306.12kg (calculation process: m=F / g=3000N÷9.8m / s²≈306.12kg)), its load-bearing capacity is far higher than the actual tension of the conductor in daily power operation and maintenance and the maximum operating load that the human body can withstand, and can fully meet the structural strength requirements of various high-tension conductor operations on site.

[0030] In traditional operations, personnel must perform high-load, high-risk jacking work at heights for extended periods, which is not only physically demanding but also poses safety hazards such as falls and force imbalances. However, thanks to the robust load-bearing and stability of this device, workers can safely and conveniently complete jacking operations using the equipment, significantly reducing reliance on manual labor and effectively mitigating the risk of accidents caused by device deformation, detachment, or operational errors during manual jacking. Furthermore, the device is stably compatible with different conductor specifications, providing reliable support for subsequent high-altitude operations, greatly reducing dangerous high-altitude operations, and comprehensively improving the safety, stability, and reliability of the entire operation.

[0031] Reference Figure 7 As an optional embodiment, it also includes a heightening rod 47, one end of which is provided with a tenon 42 adapted to a mortise 43, and the other end of which is provided with a mortise 43 adapted to the tenon 42; the heightening rod 47 can be detachably connected to the support rod 4 and the connecting column 39 through the tenons 42 and mortises 43 at both ends respectively.

[0032] To further enhance the adaptability of the device to different working heights and different types of insulators, this device can be equipped with a heightening rod 47, which can be spliced ​​to flexibly expand the lifting height. One end of the heightening rod 47 has a tenon 42 integrally formed to match the mortise 43 of the connecting post 39, and the other end has a mortise 43 with the same structural parameters as its own tenon 42. Moreover, the structural forms of the tenons 42 and mortises 43 at both ends of the heightening rod 47, as well as the size and position parameters of the connecting holes 44 on the tenons 42 and the access holes 45 on the side walls of the mortises 43, are completely matched with the corresponding structures of the support rod 4 and the connecting post 39. It can be detachably fastened to the support rod 4 and the connecting post 39 through wing bolts 46 to ensure the structural stability after splicing.

[0033] Through the modular splicing of the riser pole 47, the device can be adapted to different working height requirements and the replacement of top wires with other types of insulators, effectively expanding the applicability of the device in multiple operating scenarios and improving its versatility and on-site operational flexibility.

[0034] When no height increase is needed, simply press the tenon 42 of the support rod 4 into the mortise 43 of the connecting column 39 along the axial direction. After the connecting hole 44 and the access hole 45 are precisely coaxially aligned, thread the end of the wing bolt 46 through the access hole 45 and screw it into the connecting hole 44. After tightening, the fastening assembly of the support rod 4 and the connecting column 39 can be completed. When height needs to be increased, first press the tenon 42 at one end of the heightening rod 47 into the mortise 43 of the connecting post 39, align the access hole 45 and the connecting hole 44, and tighten with the wing bolt 46 to fix the heightening rod 47 to the connecting post 39; then press the tenon 42 of the support rod 4 into the mortise 43 at the other end of the heightening rod 47, and repeat the above bolt tightening operation. The assembly process does not require additional tools and is convenient and efficient.

[0035] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A portable, labor-saving jacking device for live-line operation, characterized in that: including, a bracket (1), two ends of the bracket (1) are respectively provided with a connecting plate (11) and a bearing plate (12), and the connecting plate (11) and the bearing plate (12) are arranged in a staggered manner; a clamping member (2), which is arranged on the connecting plate (11); a control member (3), which is arranged on the bearing plate (12); a support rod (4), detachably connected to the control member (3), and a wire supporting rod (41) is arranged at one end of the support rod (4) far from the control member (3).

2. The portable, labor-saving jacking device for live-line operation according to claim 1, characterized in that: The clamping member (2) includes a sliding groove (21) opened on the upper side of the connecting plate (11) and penetrating through to its lower surface, a driving groove (22) opened on the upper surface of the connecting plate (11), the driving groove (22) is communicated with the sliding groove (21), a motor (23) fixedly arranged in the driving groove (22), a screw rod (24) arranged at the output end of the motor (23), a bearing (25) embedded in the inner wall of one side of the sliding groove (21) far from the driving groove (22), the other end of the screw rod (24) is coaxially embedded in the inner ring of the bearing (25), and a slider (26) sleeved outside the screw rod (24); a threaded hole (27) is penetrated and opened in the middle of the slider (26), and the internal thread of the threaded hole (27) is adapted and meshed with the external thread of the screw rod (24).

3. A portable, labor-saving jacking device for live-line operation according to claim 2, characterized in that: Carrying grooves (28) extending along the length direction are opened on both inner walls of the sliding groove (21), the slider (26) is in a "convex" shape, two side flanges of the slider (26) are adapted and embedded in the carrying grooves (28), a limiting block (29) fixedly arranged at the bottom of the slider (26), and a first clamping groove (210) is opened on the upper side of the limiting block (29).

4. A portable, labor-saving jacking device for live-line operation according to claim 3, characterized in that: The clamping member (2) further includes an auxiliary block (211), the auxiliary block (211) is fixedly arranged at one end of the bracket (1) close to the connecting plate (11), the auxiliary block (211) and the connecting plate (11) are arranged in parallel, two groups of fixed clamping blocks (212) fixedly arranged on one side of the bracket (1) close to the connecting plate (11), both of the two groups of fixed clamping blocks (212) are located below the connecting plate (11) and the auxiliary block (211), and a second clamping groove (213) is opened on the upper side of both of the two groups of fixed clamping blocks (212); The depths of the first clamping groove (210) and the second clamping groove (213) are the same, and they are arranged in parallel alignment along the horizontal direction.

5. A portable, labor-saving jacking device for live-line operation according to claim 4, characterized in that: The control member (3) includes a control box (31), a battery (32), a circuit board (33) and a jack (34) arranged inside the control box (31), and a switch (35), a charging port (36), an antenna (37) and a display (38) are arranged on the upper surface of the control box (31); The battery (32) is electrically connected to the motor (23), circuit board (33), jack (34), switch (35), charging port (36), antenna (37) and display (38) respectively. The circuit board (33) is signal connected to the motor (23), jack (34), switch (35), antenna (37) and display (38) respectively.

6. A portable, labor-saving jacking device for live-line operation according to claim 5, characterized in that: The control component (3) also includes a connecting column (39), one end of which is coaxially fixed to the power output end of the jack (34), and the other end is detachably connected to the support rod (4).

7. A portable, labor-saving jacking device for live-line operation according to claim 5, characterized in that: The support rod (4) has a tenon (42) at one end near the connecting column (39), and the connecting column (39) has a mortise (43) at one end near the support rod (4) that matches the tenon (42). The tenon (42) and the mortise (43) form a concave-convex fit structure.

8. A portable, labor-saving jacking device for live-line operation according to claim 7, characterized in that: The tenon (42) has a connecting hole (44) extending longitudinally through it. The mortise (43) has an access hole (45) that is coaxially aligned with the connecting hole (44) on its side wall. The connecting hole (44) and the access hole (45) have the same diameter. A wing bolt (46) is fitted inside the access hole (45). The screw end of the wing bolt (46) passes through the access hole (45) and is screwed into the connection hole (44).

9. A portable, labor-saving jacking device for live-line operation according to claim 8, characterized in that: It also includes a heightening rod (47), one end of which is provided with a tenon (42) that matches the mortise (43), and the other end of which is provided with a mortise (43) that matches the tenon (42). The heightening rod (47) can be detachably connected to the support rod (4) and the connecting column (39) respectively through the tenons (42) and mortises (43) at both ends.

10. A portable, labor-saving wire-jacking device for live-line operation according to claim 9, characterized in that: The end of the wire support rod (41) away from the support rod (4) is V-shaped, and an insulating rubber pad (48) is fixed on the inner side wall of the wire support rod (41).

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