Portable bending device for grounding downlead of power transmission line tower

Abstract

The invention discloses a power transmission line tower grounding down lead portable bending device which comprises an operation table, a bending mechanism is arranged on the operation table, the bending mechanism and the operation table are detachably installed through a fixing part, and attaching mechanisms are symmetrically distributed on the two sides of the operation table. According to the grounding down lead bending device, the attaching mechanism is matched with the bending mechanism, anti-skid plates at the lower ends of two movable frames make contact with the two ends of a step correspondingly, then the other ends of the movable frames are fixed to a fixing plate through locking parts, one end of a grounding down lead penetrates through an operation cavity between two stress plates and penetrates through one side of a bending rod, and the bending rod is fixed to the other end of the grounding down lead; the grounding down lead is fixed through the anti-falling assembly, the bending rod is driven to rotate through the traction to bend the grounding down lead, in the process, stability is greatly improved, the bending quality can be guaranteed, the grounding down lead is not prone to being separated or deviated due to stress, and the grounding down lead bending device can be suitable for round steel grounding down leads of different diameters. And potential safety hazards caused by separation of acting force after elastic deformation of metal are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of lightning protection for high-voltage transmission line equipment, in particular to a portable bending device for grounding downleads of transmission line towers. Background Art

[0002] The grounding device is an important part of the transmission line tower. The grounding grid with low grounding resistance can effectively ensure that the transmission line tower does not trip under lightning strikes or power system overvoltage conditions. The grounding grid of the transmission line tower generally includes a wiring nose, an underground grounding grid below the ground, and a grounding down conductor connecting the two. The grounding down conductor mostly uses Φ10mm-Φ12mm steel bars to connect the power tower to the grounding pile buried near the foundation. In order to ensure that the tower has a better discharge channel when it is struck by lightning, and at the same time ensure that the shape of the grounding down conductor is regular after installation, the relevant standards of the power system regulate the shape of the grounding down conductor after installation. Regardless of whether it is a round steel or flat steel grounding down conductor, the grounding down conductor is required to be close to the tower and needs to be bent.

[0003] The processing of the grounding down conductor of the power tower in the prior art includes bending before installation and bending after installation. Bending the grounding down conductor before installation and then installing it is prone to errors, resulting in poor installation effect or the problem of being unable to install. It is also necessary to measure the step size of the concrete pile foundation of the high-voltage tower in advance, which is extremely inconvenient. Therefore, it is not only difficult to manually bend the galvanized steel grounding down conductor, but also easy to cause the galvanized layer to fall off during bending, which accelerates the electrochemical corrosion of the galvanized steel down conductor and shortens the service life of the grounding down conductor. Existing tools such as crowbars and hydraulic pliers cannot make the grounding down conductor fit stably on the outside of the concrete pile foundation. The stability of the grounding down conductor during the bending process is poor, resulting in an inadequate bending effect. In particular, when the grounding down conductor of the galvanized round steel is bent, it is easy to be detached due to force, which poses a safety hazard.

[0004] Therefore, in response to the above problems, the development of a portable bending device for the grounding down lead of a transmission line tower has practical significance for improving the construction technology level of the grounding down lead and improving the construction efficiency of the grounding project of the power system. The product described in the patent has engineering application and industry promotion value. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a portable bending device for the grounding down conductor of a transmission line tower in view of the deficiencies of the above-mentioned prior art. By cooperating with the bending mechanism through a fitting mechanism, the anti-slip plates at the lower ends of the two movable frames are respectively in contact with the two ends of the step, and then the other end of the movable frame is fixed to the fixed plate through a locking portion. One end of the grounding down conductor passes through the operating cavity between the two force-bearing plates and passes through one side of the bending rod. The grounding down conductor is fixed by an anti-slip assembly, the traction piece is held and pushed to one side, and the grounding down conductor is bent by rotating the bending rod to overcome the defects of the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A portable bending device for a grounding down conductor of a power transmission line tower comprises an operating table, on which a bending mechanism is arranged, and the bending mechanism and the operating table are detachably mounted via a fixing component, and two sets of fitting mechanisms are symmetrically distributed on both sides of the operating table, and two sets of fitting mechanisms are cooperated and clamped on the concrete pile foundation step of the power transmission line tower; The bending mechanism comprises two force-bearing plates arranged opposite to each other, and the force-bearing plates are fixedly connected to the operating table through fixing components, one of the force-bearing plates is provided with an anti-dropping assembly for limiting the position of the grounding down conductor in the operating cavity between the two force-bearing plates, the two force-bearing plates are sleeved with bearings on the outer sides thereof, and a traction member is fixedly connected to the outer ring side wall of the bearing, and a bending rod is fixedly connected to the traction member; The laminating mechanism comprises a fixed plate and a movable frame, wherein the fixed plate is detachably mounted on an operating table, the movable frame is movably connected to the inner side of the end of the fixed plate, and a locking portion is provided between the fixed plate and the movable frame for limiting the telescopic structure of the fixed plate and the movable frame.

[0007] Preferably, the operating table is U-shaped, and both ends of the operating table are sleeved with fixing sleeves, and the fixing sleeves are installed on the operating table by screws, and the two fixing plates are respectively fixed on the two fixing sleeves; The fixed plate is provided with two parallel movable holes on one side away from the fixed sleeve. The movable frame is integrated with a vertical bonding plate and a horizontal bonding plate. The cross-sectional shape of the horizontal bonding plate is set to be H-shaped, and the longitudinal section of the horizontal bonding plate matches the longitudinal sections of the two movable holes. The inner side of the vertical bonding plate is fixedly connected with an anti-skid plate.

[0008] Preferably, the locking portion includes a hand-tightening bolt and a toothed plate, wherein the toothed plate is movably connected to one of the movable holes, the hand-tightening bolt is rotatably connected to the toothed plate, a threaded barrel is fixedly connected to the top of the fixed plate at a position corresponding to one of the movable holes, and the threaded barrel is communicated with the movable hole, the hand-tightening bolt is threadedly connected to the threaded barrel, a limiting rod is fixedly connected to the top edge of the toothed plate, and a positioning hole that slides with the limiting rod passes through the upper surface of the fixed plate, a plurality of tooth grooves distributed in a linear array are provided on one side of the upper surface of the transversely fitted plate, and the lower surface of the toothed plate can be meshed and connected with the tooth grooves.

[0009] Preferably, the traction member comprises a threaded sleeve and a handle, the end of the threaded sleeve is welded to the outer ring of the bearing, the end of the handle is integrally provided with a threaded section, and the handle is installed by threaded combination of the threaded section and the threaded sleeve.

[0010] Preferably, a rubber sleeve is sleeved on the outer side of the handle, the bending rod is vertically welded to the top of the threaded sleeve, and the upper surface of the bending rod is flush with the upper surface of the force-bearing plate.

[0011] Preferably, the opposite sides of the two force-bearing plates are set as arc surfaces, and the two arc surfaces are symmetrically distributed about the center axis between the two force-bearing plates, and reinforcing blocks are fixedly connected on both sides of the bottom end position between the two force-bearing plates.

[0012] Preferably, the anti-slip assembly includes a movable plate movably connected to the operating cavity, a threaded rod is rotatably connected to the movable plate, an end of the threaded rod away from the movable plate passes through and is slidably connected to a sliding handle, one end of the sliding handle is detachably installed by a nut, a threaded hole is opened on one of the force-bearing plates, and the threaded rod is threadedly connected to the threaded hole, a guide rod is fixedly installed on the side wall of the movable plate, and the guide rod passes through the side wall of the force-bearing plate and is slidably connected to the through hole.

[0013] Preferably, the fixing component includes a mounting plate and a large nut. A mounting groove matching the mounting plate is opened on the top of the operating table. An ear plate is fixedly connected to the outer side of the top end of the mounting plate. The ear plate is fixed to the operating table by bolts, and the bottom of the mounting plate is embedded in the mounting groove. The mounting plate is fixedly connected to the bottom of the two force-bearing plates. The large nut is installed on the outer sides of the two force-bearing plates and pressed against the top end of the bearing.

[0014] Preferably, a mounting platform is provided on the top outer side of the force-bearing plate where the threaded hole is located. When the movable plate moves to the maximum distance, the threaded rod, the sliding handle and the guide rod are all located on the inner side of the mounting platform. External threads are provided on the arc surfaces of the two force-bearing plates, and the inner wall of the large nut is threadedly connected to the external thread.

[0015] Preferably, the fixing component includes a connecting tube and a threaded column, wherein a threaded groove is opened on the inner side of the connecting tube, a circular hole is opened on the upper surface of the operating table, the threaded column passes through the circular hole and extends into the inside of the connecting tube, the threaded column is fixedly connected to the bottom of the two force-bearing plates, and a retaining ring is fixedly connected to the outer top edge of the threaded column, the threaded column passes through the inner ring of the bearing and is threadedly connected to the threaded groove, and the retaining ring is pressed against the top of the bearing.

[0016] The present invention has the following beneficial effects: The anti-slip plates at the lower ends of the two moving frames are respectively in contact with the two ends of the steps through the fitting mechanism and the bending mechanism, and then the other end of the moving frame is fixed to the fixed plate through the locking part, and one end of the grounding down conductor passes through the operating cavity between the two force-bearing plates and passes through one side of the bending rod. The grounding down conductor is fixed by the anti-detachment component, and the traction piece is held and pushed to one side, and the grounding down conductor is rotated with the bending rod to bend. During the bending process of the grounding down conductor, the stability is greatly improved, the bending quality can be guaranteed, and the grounding down conductor is not easy to be separated or deviated by force, and can be used for round steel grounding down conductors of different diameters, reducing the safety hazard caused by the separation force after the metal elastic deformation; The bending mechanism and the operating table are quickly assembled and combined through fixing components, and the bearing is sleeved on the outside of the two load-bearing plates. Reinforcement blocks are arranged inside, which greatly improves the strength of the structure and the stability during operation, and at the same time facilitates the disassembly and assembly of the bearings and the load-bearing plates. The modular combination design structure is convenient for carrying and quick installation, so that the round steel can be arbitrarily bent according to the shapes of different concrete pile foundations and steps, so that the round steel is closely attached to the concrete pile foundation and the step alignment, which can facilitate the staff to quickly and arbitrarily bend the grounding down lead at the work site, and the practicality is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structural schematic diagram of the portable bending device for the grounding down conductor of a power transmission line tower provided by the present invention; Figure 2 It is an exploded view of the three-dimensional structure of the laminating mechanism and the locking part of the present invention; Figure 3 A three-dimensional diagram of the connection structure of the bending mechanism, the operating table and the fixing component provided in the first embodiment of the present invention; Figure 4 For the present invention Figure 3 An exploded view of the structure shown; Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle part A; Figure 6 A three-dimensional diagram of the connection structure of the bending mechanism, the operating table and the fixing component provided in the second embodiment of the present invention; Figure 7For the present invention Figure 6 Exploded view of the structure shown.

[0018] In the figure: 1. Operating table; 2. Mounting groove; 3. Mounting plate; 4. Ear plate; 5. Force plate; 6. Reinforcement block; 7. Mounting table; 8. Threaded hole; 9. Threaded rod; 10. Sliding handle; 11. Guide rod; 12. Moving plate; 13. External thread; 14. Bearing; 15. Threaded sleeve; 16. Bending rod; 17. Handle; 18. Rubber sleeve; 19. Large nut; 20. Fixed plate; 21. Moving hole; 22. Threaded barrel; 23. Hand-tightening bolt; 24. Tooth plate; 25. Moving frame; 26. Tooth groove; 27. Connecting barrel; 28. Round hole; 29. ​​Threaded column; 30. Retaining ring; 31. Anti-skid plate; 32. Fixed sleeve; 33. Limit rod. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other. Example

[0023] See also Figure 1-5 The present invention provides a portable bending device for a grounding down conductor of a power transmission line tower, comprising an operating platform 1, on which a bending mechanism is arranged, and the bending mechanism and the operating platform 1 are detachably mounted via a fixing component, and fitting mechanisms are symmetrically distributed on both sides of the operating platform 1, and two sets of fitting mechanisms are cooperated and clamped on the concrete pile foundation steps of the power transmission line tower, so as to improve the stability of the grounding down conductor when the grounding down conductor is bent; As an implementation of the bending mechanism in the present invention: The bending mechanism includes two force-bearing plates 5 arranged opposite to each other, and the force-bearing plates 5 are fixedly connected to the operating table 1 through a fixing component, one of the force-bearing plates 5 is installed with an anti-drop assembly for limiting the grounding down conductor in the operating cavity between the two force-bearing plates 5, and the two force-bearing plates 5 are commonly sleeved with a bearing 14 on the outer side, and a traction member is fixedly connected to the outer ring side wall of the bearing 14, and a bending rod 16 is fixedly connected to the traction member; As an embodiment of the laminating mechanism in the present invention: The fitting mechanism includes a fixed plate 20 and a movable frame 25, wherein the fixed plate 20 can be detachably mounted on the operating table 1, the movable frame 25 is movably connected to the inner side of the end of the fixed plate 20, and a locking portion is provided between the fixed plate 20 and the movable frame 25 for limiting the telescopic structure of the fixed plate 20 and the movable frame 25.

[0024] Specifically, the operating table 1 is U-shaped, and both ends of the operating table 1 are sleeved with fixing sleeves 32, and the fixing sleeves 32 are installed on the operating table 1 by screws, and the two fixing plates 20 are respectively fixed on the two fixing sleeves 32; The fixed plate 20 is provided with two parallel movable holes 21 on one side away from the fixed sleeve 32. The movable frame 25 is formed by integrating a vertical laminating plate and a horizontal laminating plate. The vertical laminating plate and the horizontal laminating plate are arranged vertically. The cross-sectional shape of the horizontal laminating plate is set to be H-shaped, and the longitudinal section of the horizontal laminating plate matches the longitudinal sections of the two movable holes 21. The inner side surface of the vertical laminating plate is fixedly connected with an anti-slip plate 31, so as to facilitate contact with the outer wall of the step on the concrete pile foundation of the high-pressure tower. In order to facilitate the staff to bend the grounding down conductor, the movable frame 25 is pulled out from the fixed plate 20, and the anti-skid plate 31 is made to contact the outer wall of the step on the concrete pile foundation of the high-voltage tower, and the anti-skid plates 31 at the lower ends of the two movable frames 25 are respectively made to contact the two ends of the step, and then the other end of the movable frame 25 is fixed on the fixed plate 20, and finally one end of the grounding down conductor is passed through the operating cavity between the two force-bearing plates 5 and through one side of the bending rod 16, and the rubber sleeve 18 on the handle 17 is pushed to one side, and the grounding down conductor is bent by rotating the bending rod 16 at the same time, and the grounding down conductor can be bent by a single person.

[0025] As an implementation mode of the locking portion in the present invention: The locking part includes a hand-tightening bolt 23 and a tooth plate 24, wherein the tooth plate 24 is movably extended into one of the moving holes 21, the hand-tightening bolt 23 is rotatably connected to the tooth plate 24, a threaded barrel 22 is fixedly connected at a position corresponding to one of the moving holes 21 on the top of the fixed plate 20, and the threaded barrel 22 is communicated with the moving hole 21, the hand-tightening bolt 23 is threadedly connected to the threaded barrel 22, a limiting rod 33 is fixedly connected at the top edge of the tooth plate 24, and a positioning hole that slidably cooperates with the limiting rod 33 is penetrated on the upper surface of the fixed plate 20, one end of the limiting rod 33 slides in the positioning hole and passes out of the outer side of the fixed plate 20, when the tooth plate 24 moves, it is restricted so that the tooth plate 24 can only move vertically up and down, a plurality of tooth grooves 26 distributed in a linear array are opened on one side of the upper surface of the horizontally fitting plate, and the lower surface of the tooth plate 24 can be meshed and connected with the tooth grooves 26, thereby realizing the rapid limiting of the fixed plate 20 and the movable frame 25 after adjustment, improving the work efficiency, and the stability when working close to the steps on the concrete pile foundation of the high-pressure tower.

[0026] As an embodiment of the traction member in the present invention: The traction member includes a threaded sleeve 15 and a handle 17. The end of the threaded sleeve 15 is welded to the outer ring of the bearing 14. The end of the handle 17 is integrally provided with a threaded section, and the handle 17 is installed by threading the threaded sleeve 15. This structure is easy to install and disassemble, thereby achieving portability. By holding the rubber sleeve 18 on the handle 17 and pushing it to one side, the bearing 14 and the bending rod 16 can be rotated on the two force-bearing plates 5.

[0027] Specifically, a rubber sleeve 18 is sleeved on the outer side of the handle 17 , the bending rod 16 is vertically welded to the top of the threaded sleeve 15 , and the upper surface of the bending rod 16 is flush with the upper surface of the force-bearing plate 5 .

[0028] Specifically, the opposite sides of the two force-bearing plates 5 are set as arc surfaces, and the two arc surfaces are symmetrically distributed about the center axis between the two force-bearing plates 5, and reinforcing blocks 6 are fixedly connected on both sides of the bottom end position between the two force-bearing plates 5.

[0029] As an embodiment of the anti-drop component in the present invention: The anti-detachment component includes a movable plate 12 movably connected to the operating cavity, and a threaded rod 9 is rotatably connected to the movable plate 12. The end of the threaded rod 9 away from the movable plate 12 passes through and is slidably connected to a sliding handle 10, and one end of the sliding handle 10 is detachably installed through a nut. A threaded hole 8 is opened on one of the force-bearing plates 5, and the threaded rod 9 is threadedly connected to the threaded hole 8. A guide rod 11 is fixedly installed on the side wall of the movable plate 12, and the guide rod 11 passes through the side wall of the force-bearing plate 5 and is slidably connected to the force-bearing plate 5. By rotating the threaded rod 9, the movable plate 12 can be pushed to one side of the other force-bearing plate 5, thereby changing the distance between the movable plate 12 and the other force-bearing plate 5, so that grounding down conductors of different diameters can be passed through and fixed, and are convenient for bending. During the bending process of the grounding down conductor, the grounding down conductor is not easily detached or deviated due to force, thereby improving the bending quality and reducing the safety hazard caused by the detachment force after the metal elastic deformation.

[0030] As an embodiment of the fixing member in the present invention: The fixing components include a mounting plate 3 and a large nut 19. A mounting groove 2 matching the mounting plate 3 is opened on the top of the operating table 1. An ear plate 4 is fixedly connected to the outer side of the top end of the mounting plate 3. The ear plate 4 is fixed to the operating table 1 by bolts, and the bottom of the mounting plate 3 is embedded in the mounting groove 2. The mounting plate 3 is fixedly connected to the bottom of the two force-bearing plates 5. The large nut 19 is installed on the outer sides of the two force-bearing plates 5 and pressed against the top of the bearing 14.

[0031] Specifically, a mounting platform 7 is provided at the top of the outer side of the load-bearing plate 5 where the threaded hole 8 is located. When the movable plate 12 moves to the maximum distance, the threaded rod 9, the sliding handle 10 and the guide rod 11 are all located on the inner side of the mounting platform 7, which is convenient for the large nut 19 and the bearing 14 to be sleeved on the outer side of the load-bearing plate 5. External threads 13 are provided on the arc surfaces of the two load-bearing plates 5. The inner wall of the large nut 19 is threadedly connected to the external thread 13. The lower ends of the two load-bearing plates 5 are fixedly mounted on the upper end of the mounting plate 3, thereby fixing the two load-bearing plates 5 on the upper end of the operating table 1. In addition, the bearing 14 is sleeved on the outer side of the two load-bearing plates 5, and the inner wall of the large nut 19 is threadedly connected to the outer wall of the external thread 13. At the same time, the lower end side wall of the large nut 19 contacts the upper end surface of the inner wall of the bearing 14, thereby fixing the bearing 14 on the outer side of the two load-bearing plates 5, which greatly improves the strength of the structure and the stability during work, and at the same time facilitates the disassembly and assembly of the bearing 14 and the load-bearing plate 5, making it easy to carry. Example

[0032] As another embodiment of the fixing member in the present invention: See also Figure 6-7The fixing part includes a connecting tube 27 and a threaded column 29, wherein a threaded groove is provided inside the connecting tube 27, a round hole 28 is provided on the upper surface of the operating table 1, the threaded column 29 passes through the round hole 28 and extends to the inside of the connecting tube 27, the threaded column 29 is fixedly connected to the bottom of the two force-bearing plates 5, and a retaining ring 30 is fixedly connected to the outer top edge of the threaded column 29, the threaded column 29 passes through the inner ring of the bearing 14 and is threadedly connected to the threaded groove, and the retaining ring 30 is pressed against the top of the bearing 14, that is, the lower end side wall of the retaining ring 30 is in contact with the upper end side wall of the bearing 14; By putting the bearing 14 on the outer end side wall of the threaded column 29, and then passing the lower end of the threaded column 29 through the circular hole 28 and the connecting tube 27 for threaded connection, the threaded column 29 is rotated until the upper end surface of the retaining ring 30 and the inner wall of the bearing 14 are in close contact, and the two force plates 5 and the bearing 14 are fixed to the upper end of the operating table 1, which makes it easy to disassemble and assemble the bearing 14 and the force plate 5, and it is convenient to carry them.

[0033] When the device is working, the bearing 14 is installed on the outer walls of the two load-bearing plates 5, and then the load-bearing plates 5 are installed on the upper end of the operating table 1. In order to facilitate the staff to bend the grounding down conductor, the movable frame 25 is pulled out from the fixed plate 20, and the anti-slip plate 31 is made to contact the outer wall of the step on the concrete pile foundation of the high-voltage tower, and the anti-slip plates 31 at the lower ends of the two movable frames 25 are respectively made to contact the two ends of the step, and then the other end of the movable frame 25 is fixed to the fixed plate 20 through the locking part, and then one end of the grounding down conductor is passed through the operating cavity between the two load-bearing plates 5 and through one side of the bending rod 16, and the movable plate 12 is pushed to one side of the other load-bearing plate 5 by rotating the threaded rod 9, thereby changing the distance between the movable plate 12 and the other load-bearing plate 5. After fixing the grounding down conductors of different diameters, the rubber sleeve 18 on the handle 17 is held and pushed to one side, and the grounding down conductor is bent by rotating the bending rod 16 at the same time.

[0034] The preferred embodiments of the present invention are described in detail above; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A portable bending device for a grounding down conductor of a transmission line tower, comprising an operating table (1), characterized in that: The operating table (1) is provided with a bending mechanism, and the bending mechanism and the operating table (1) are detachably mounted via a fixing component; fitting mechanisms are symmetrically distributed on both sides of the operating table (1), and two sets of fitting mechanisms cooperate to clamp on the concrete pile foundation step of the transmission line tower; The bending mechanism comprises two force-bearing plates (5) arranged opposite to each other, and the force-bearing plates (5) are fixedly connected to the operating table (1) via a fixing component, one of the force-bearing plates (5) is provided with an anti-dropping component for limiting the position of the grounding down conductor in the operating cavity between the two force-bearing plates (5), the two force-bearing plates (5) are sleeved with a bearing (14) on their outer sides, and a traction member is fixedly connected to the outer ring side wall of the bearing (14), and a bending rod (16) is fixedly connected to the traction member; The laminating mechanism comprises a fixed plate (20) and a movable frame (25), wherein the fixed plate (20) is detachably mounted on the operating table (1), the movable frame (25) is movably connected to the inner side of the end of the fixed plate (20), and a locking portion is provided between the fixed plate (20) and the movable frame (25) for limiting the telescopic structure of the fixed plate (20) and the movable frame (25).

2. The portable bending device for grounding down conductor of power transmission line tower according to claim 1 is characterized in that: The operating table (1) is U-shaped, and both ends of the operating table (1) are sleeved with fixing sleeves (32), and the fixing sleeves (32) are mounted on the operating table (1) by means of screws, and the two fixing plates (20) are respectively fixed on the two fixing sleeves (32); The fixed plate (20) is provided with two parallel movable holes (21) on one side away from the fixed sleeve (32); the movable frame (25) is composed of a vertical laminating plate and a horizontal laminating plate in one piece; the cross-sectional shape of the horizontal laminating plate is set to be H-shaped, and the longitudinal section of the horizontal laminating plate matches the longitudinal sections of the two movable holes (21); the inner side surface of the vertical laminating plate is fixedly connected to an anti-slip plate (31).

3. The portable bending device for grounding down conductor of power transmission line tower according to claim 2 is characterized in that: The locking portion comprises a hand-tightening bolt (23) and a tooth plate (24), wherein the tooth plate (24) is movably connected to the inside of one of the moving holes (21), the hand-tightening bolt (23) and the tooth plate (24) are rotatably connected, a threaded barrel (22) is fixedly connected to the top of the fixed plate (20) at a position corresponding to one of the moving holes (21), and the threaded barrel (22) is communicated with the moving hole (21), the hand-tightening bolt (23) and the threaded barrel (22) are threadedly connected, a limit rod (33) is fixedly connected to the top edge of the tooth plate (24), and a positioning hole that slidably cooperates with the limit rod (33) is penetrated through the upper surface of the fixed plate (20), and a plurality of tooth grooves (26) distributed in a linear array are opened on one side of the upper surface of the horizontal bonding plate, and the lower surface of the tooth plate (24) can be meshed with the tooth grooves (26).

4. The portable bending device for grounding down conductor of power transmission line tower according to claim 3 is characterized in that: The traction member comprises a threaded sleeve (15) and a handle (17); the end of the threaded sleeve (15) is welded to the outer ring of the bearing (14); the end of the handle (17) is integrally provided with a threaded section, and the handle (17) is assembled and installed with the threaded sleeve (15) through the threaded section.

5. The portable bending device for grounding down conductor of power transmission line tower according to claim 4 is characterized in that: The outer side of the handle (17) is sleeved with a rubber sleeve (18), the bending rod (16) is vertically welded to the top of the threaded sleeve (15), and the upper surface of the bending rod (16) is flush with the upper surface of the force-bearing plate (5).

6. The portable bending device for grounding down conductor of power transmission line tower according to claim 5 is characterized in that: The opposite sides of the two force-bearing plates (5) are arranged as arc surfaces, and the two arc surfaces are symmetrically distributed about the center axis between the two force-bearing plates (5), and reinforcement blocks (6) are fixedly connected to both sides of the bottom end position between the two force-bearing plates (5).

7. The portable bending device for grounding down conductor of power transmission line tower according to claim 6 is characterized in that: The anti-slip assembly comprises a movable plate (12) movably connected to the operating chamber, a threaded rod (9) being rotatably connected to the movable plate (12), an end of the threaded rod (9) away from the movable plate (12) passing through and slidably connected to a sliding handle (10), one end of the sliding handle (10) being detachably mounted via a nut, a threaded hole (8) being formed on one of the force-bearing plates (5), and the threaded rod (9) being threadedly connected to the threaded hole (8), a guide rod (11) being fixedly mounted on the side wall of the movable plate (12), and the guide rod (11) passing through the side wall of the force-bearing plate (5) and being slidably connected to the through hole.

8. The portable bending device for grounding down conductor of power transmission line tower according to claim 7 is characterized in that: The fixing component comprises a mounting plate (3) and a large nut (19); a mounting groove (2) matching the mounting plate (3) is provided on the top of the operating table (1); an ear plate (4) is fixedly connected to the outer side of the top end of the mounting plate (3); the ear plate (4) is fixed to the operating table (1) by bolts, and the bottom of the mounting plate (3) is embedded in the mounting groove (2); the mounting plate (3) is fixedly connected to the bottom of two force-bearing plates (5); the large nut (19) is installed on the outer side of the two force-bearing plates (5) and pressed against the top end of the bearing (14).

9. The portable bending device for grounding down conductor of power transmission line tower according to claim 8 is characterized in that: A mounting platform (7) is provided at the top of the outer side of the load-bearing plate (5) where the threaded hole (8) is located. When the movable plate (12) moves to a maximum distance, the threaded rod (9), the sliding handle (10) and the guide rod (11) are all located on the inner side of the mounting platform (7). External threads (13) are provided on the arc surfaces of the two load-bearing plates (5). The inner wall of the large nut (19) is threadedly connected to the external threads (13).

10. The portable bending device for grounding down conductor of power transmission line tower according to claim 1 is characterized in that: The fixing component comprises a connecting tube (27) and a threaded column (29), wherein a threaded groove is formed on the inner side of the connecting tube (27), a circular hole (28) is formed on the upper surface of the operating table (1), the threaded column (29) passes through the circular hole (28) and extends into the interior of the connecting tube (27), the threaded column (29) is fixedly connected to the bottom of the two force-bearing plates (5), and a retaining ring (30) is fixedly connected to the outer top edge of the threaded column (29), the threaded column (29) passes through the inner ring of the bearing (14) and is threadedly connected to the threaded groove, and the retaining ring (30) is pressed against the top of the bearing (14).

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