Ground wire crimping type diversion fitting

Abstract

The invention relates to the technical field of diversion fittings, and discloses a ground wire crimping type diversion fitting which comprises a crimping pipe body, an eccentric drainage plate is welded and fixed to the outer side of the crimping pipe body, a drainage wire clamp is detachably connected to the outer side of the eccentric drainage plate, and a connecting assembly used for fixed installation is arranged between the eccentric drainage plate and the drainage wire clamp. A clamping assembly used for assisting in fixing is arranged on the outer side of the crimping pipe body, the crimping pipe body comprises a drawer-type crimping pipe, a steel drawer is arranged on the outer side of the drawer-type crimping pipe, the drawer-type crimping pipe and the steel drawer are each of an arc-shaped structure, an insertion groove is formed in the edge of the drawer-type crimping pipe, and the steel drawer is arranged in the insertion groove. The edge of the steel drawer is fixedly connected with an inserting block. Through the arrangement of the drawer type crimping pipe and the steel drawer and the cooperation of the clamping assembly, preliminary positioning is achieved, site construction operation is facilitated, the construction efficiency is improved, and the occurrence rate of safety accidents is reduced.

Description

Technical Field

[0001] This invention relates to the field of current-conducting fittings, specifically to ground wire crimp-type current-conducting fittings. Background Technology

[0002] In the operation and maintenance of high-voltage and ultra-high-voltage transmission lines, ground wires are prone to icing in low-temperature and humid winter environments, threatening the safe and stable operation of the lines. Ground wire de-icing is currently the technical means to eliminate icing. The technical solution involves introducing a large current from the lead wire to the main ground wire through a special current-conducting fitting, and using the thermal effect of the current to heat up the ground wire and melt the ice.

[0003] The existing ground wire crimping type current guide hardware must be installed on a high-altitude tower. Since the current guide hardware itself is quite heavy, the existing hardware structure lacks a pre-positioning and temporary locking mechanism before formal hydraulic crimping to achieve permanent fixation. This means that when the construction personnel are operating, they must hold the current guide hardware with one hand to align it with the predetermined installation position on the main ground wire to prevent the current guide hardware from slipping, while the other hand needs to be free to prepare and operate the equally heavy hydraulic crimping tool.

[0004] This type of high-altitude operation is physically demanding for construction workers, has poor operational stability, and requires them to be under high stress. If the support is unstable or there is a failure in coordination, it can easily lead to misalignment of the crimping position, affecting electrical and mechanical performance, and may also cause the fittings or tools to fall from a height, directly threatening the safety of personnel and equipment below and posing a safety hazard. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a ground wire crimp-type current-guiding hardware, which solves the problem that existing current-guiding hardware lacks a reliable pre-positioning and locking mechanism during high-altitude installation, resulting in low construction efficiency, poor operational stability, and safety hazards.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a ground wire crimping type current guiding hardware, including a crimping tube body, an eccentric current guiding plate welded and fixed to the outside of the crimping tube body, a current guiding clamp detachably connected to the outside of the eccentric current guiding plate, a connecting component for fixed installation provided between the eccentric current guiding plate and the current guiding clamp, and a snap-fit ​​component for auxiliary fixing provided on the outside of the crimping tube body;

[0007] The crimping tube body includes a drawer-type crimping tube, with a steel drawer on the outside of the drawer-type crimping tube. Both the drawer-type crimping tube and the steel drawer have an arc-shaped structure. The edge of the drawer-type crimping tube has an insertion groove, and the edge of the steel drawer is fixedly connected to an insertion block. The inside of the drawer-type crimping tube has a fan-shaped ring.

[0008] The components of the ground wire crimp-type current-conducting fitting are all made of Q355 steel or 16Mn steel.

[0009] Preferably, the pull-out type compression tube and the steel pull-out tube form a tubular structure, and the plug block is slidably connected inside the plug slot.

[0010] The steel drawer has a fan-shaped annular cross-section, and the insertion groove on the drawer-type press tube has the same depth as the insertion block.

[0011] Preferably, the drain clamp includes a steel clamp with a tube hole inside, and a terminal plate is fixedly connected to the end of the steel clamp.

[0012] The tube hole is used to fit the drain line, and the wall thickness of the steel clamp ensures that the steel clamp has sufficient plastic deformation capacity to tighten the drain line when using hydraulic tools for crimping, while avoiding cracking itself.

[0013] Preferably, the connecting assembly includes connecting holes symmetrically opened on the outer sides of the terminal plate and the eccentric drain plate, connecting bolts are provided inside the terminal plate and the eccentric drain plate, a hexagonal nut is threaded to the outer side of the connecting bolt, a washer is provided between the connecting bolt and the terminal plate, and the connecting bolt is located inside the connecting hole.

[0014] The connection holes are symmetrically opened on the connection end of the eccentric diversion plate and the terminal plate of the diversion clamp. To accommodate the connection bolts, during installation, the terminal plate is aligned with the eccentric diversion plate so that the connection holes are connected. The connection bolts are then passed through the gasket, the terminal plate and the connection holes on the eccentric diversion plate in sequence. Finally, a hexagonal nut is used to tighten the thread on the outside of the connection bolts.

[0015] Preferably, the snap-fit ​​assembly includes an arc-shaped component symmetrically welded and fixed to the outside of the crimp tube body. The arc-shaped component has an arc-shaped groove inside. Limiting grooves are provided inside the arc-shaped component and on both sides of the arc-shaped groove. An arc-shaped retaining ring is also provided inside the arc-shaped component. Limiting blocks are symmetrically fixedly connected to both sides of the arc-shaped retaining ring. A locking component for locking is provided at the end of the arc-shaped retaining ring.

[0016] The snap-fit ​​assembly is a mechanical device used to achieve pre-positioning without manual intervention. Its purpose is to pre-fix the crimping tube body to the main ground line before the formal hydraulic crimping.

[0017] Preferably, the arc-shaped retaining ring is slidably connected inside the arc-shaped groove, and the limiting block is slidably connected inside the limiting groove.

[0018] The size and shape of the limiting block are matched with the limiting groove, so that the limiting block can only slide inside the limiting groove.

[0019] Preferably, the arc-shaped component and the arc-shaped retaining ring form a circular structure, and the inner walls of the arc-shaped component and the arc-shaped retaining ring abut against the outer wall of the press-fit pipe body.

[0020] Preferably, the locking assembly includes a first connecting block fixedly connected to the outside of the arc-shaped member, a second connecting block fixedly connected to the outside of the arc-shaped retaining ring, a threaded hole on the surface of the first connecting block, a locking bolt rotatably connected inside the second connecting block, and a handle fixedly connected to the end of the locking bolt.

[0021] The locking assembly is used to apply tension to the arc-shaped component and the arc-shaped retaining ring, so that the arc-shaped component and the arc-shaped retaining ring move closer to each other and lock together.

[0022] Preferably, the first connecting block and the second connecting block are arranged opposite to each other, and the locking bolt is threaded into the inside of the threaded hole.

[0023] Preferably, the eccentric drain plate has reinforcing ribs welded to both sides, and the edges of the reinforcing ribs are welded to the outer wall surface of the pull-out type press tube.

[0024] Among them, the eccentric drainage plate is welded with reinforcing ribs on both sides, and the edges of the reinforcing ribs are welded to the outer wall of the pull-out press pipe. Since the reinforcing ribs are triangular in structure, they form a stable triangular support.

[0025] This invention provides a grounding crimp-type current-carrying fitting. It has the following beneficial effects:

[0026] 1. This invention improves the tensile strength of the flow guiding fitting by using a press-fit body made entirely of steel, reduces the risk of fitting detachment, and enhances its corrosion resistance and high-temperature resistance, thereby enabling the flow guiding fitting to adapt to complex de-icing conditions.

[0027] 2. This invention, through the use of a pull-out crimping tube and a steel pull-out tube, along with a snap-fit ​​assembly, allows construction workers to directly snap the pull-out crimping tube and the steel pull-out tube into the predetermined installation position of the main ground wire, achieving initial positioning. This eliminates the need for manual support of the fittings during subsequent operations, allowing construction workers to safely perform subsequent operations. Construction workers use hydraulic crimping tools for crimping operations, facilitating on-site construction, improving construction efficiency, and reducing the incidence of safety accidents.

[0028] 3. By designing the crimping tube body, the thinner edge of the insertion groove undergoes plastic deformation before the crimping tube body during crimping, thereby locking the insertion block in the opposite direction. This achieves secondary locking using the crimping force, preventing the risk of misalignment and separation of the two components under high pressure. This ensures the integrity and reliability of the tube body after crimping, while also reducing the cracking rate after crimping, improving the vibration resistance of the flow guide fitting, and reducing the risk of loosening after long-term operation.

[0029] 4. The present invention uses high pressure to make the inner wall of the crimping tube body fit tightly with the outer surface of the main ground wire, thereby forming a large friction force and metal bonding, which in turn ensures that the fitting has a low contact resistance, which is beneficial to the transmission of de-icing current and high tensile strength, while withstanding long-term vibration and icing load.

[0030] 5. This invention welds reinforcing ribs to both sides of the eccentric diversion plate and welds the edges of the reinforcing ribs to the outer wall of the pull-out press-fit pipe. Since the reinforcing ribs are triangular in structure, a stable triangular support is formed, which enhances the connection stiffness and bending moment resistance of the eccentric diversion plate. This ensures that the eccentric diversion plate will not loosen or fatigue fracture when subjected to press-fit stress, vibration and diversion line tension, thus improving the stability of the overall structure. Attached Figure Description

[0031] Figure 1 This is a perspective view of the present invention;

[0032] Figure 2 This is a schematic diagram of the tube hole in the present invention;

[0033] Figure 3 This is a schematic diagram of the connecting components in this invention;

[0034] Figure 4 This is a schematic diagram of the pressure pipe body in this invention;

[0035] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0036] Figure 6 This is a schematic diagram of the reinforcing rib in this invention;

[0037] Figure 7 This is a schematic diagram of the steel drawer in this invention;

[0038] Figure 8 This is a schematic diagram of the snap-fit ​​assembly in this invention.

[0039] Legend

[0040] 1. Crimping tube body; 11. Pull-out crimping tube; 12. Steel pull-out box; 13. Insertion slot; 14. Insertion block; 15. Fan-shaped ring; 2. Eccentric diversion plate; 3. Diversion clamp; 31. Steel clamp; 32. Tube hole; 33. Terminal plate; 4. Connecting assembly; 41. Connecting hole; 42. Connecting bolt; 43. Hex nut; 44. Washer; 5. Snap-fit ​​assembly; 51. Arc-shaped part; 52. Arc-shaped slide groove; 53. Limiting slide groove; 54. Arc-shaped retaining ring; 55. Limiting block; 6. Locking assembly; 61. First connecting block; 62. Second connecting block; 63. Threaded hole; 64. Locking bolt; 65. Handle; 7. Reinforcing rib. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figure 1-3 This invention provides a ground wire crimping type current guiding fitting, including a crimping tube body 1, an eccentric current guiding plate 2 welded and fixed to the outside of the crimping tube body 1, a current guiding clamp 3 detachably connected to the outside of the eccentric current guiding plate 2, a connecting component 4 for fixed installation between the eccentric current guiding plate 2 and the current guiding clamp 3, and a snap-fit ​​component 5 for auxiliary fixing on the outside of the crimping tube body 1;

[0043] Please see Figure 4-7 The crimping tube body 1 includes a drawer-type crimping tube 11, a steel drawer 12 is provided on the outside of the drawer-type crimping tube 11, both the drawer-type crimping tube 11 and the steel drawer 12 are arc-shaped, the edge of the drawer-type crimping tube 11 is provided with a plug groove 13, the edge of the steel drawer 12 is fixedly connected with a plug block 14, and a fan-shaped ring 15 is formed inside the drawer-type crimping tube 11.

[0044] Specifically, under high pressure, the steel crimping tube body 1 undergoes plastic deformation, causing the tube wall of the crimping tube body 1 to compress inward. At this time, the connection between the pull-out crimping tube 11 and the steel pull-out tube 12, namely the insertion groove 13 and the insertion block 14, will deform. Since the edge of the insertion groove 13 is thinner than the wall thickness of the pull-out crimping tube 11, under pressure, the edge of the insertion groove 13 will deform first, locking the insertion block 14, so that the pull-out crimping tube 11 and the steel pull-out tube 12 have better locking force.

[0045] The pressure-fitting body 1, made entirely of steel, improves the tensile strength of the flow guiding fitting, reduces the risk of fitting detachment, and enhances its corrosion resistance and high-temperature resistance, thus enabling the flow guiding fitting to adapt to complex de-icing conditions.

[0046] By designing the crimping tube body 1, during crimping, the thinner edge of the insertion groove 13 will undergo plastic deformation before the crimping tube body 1, thereby locking the insertion block 14 in the opposite direction. The crimping force achieves secondary locking, preventing the risk of misalignment and separation of the two components under high pressure. This ensures the integrity and reliability of the crimping tube body 1 after crimping, while also reducing the cracking rate of the crimping tube body 1 after crimping, improving the vibration resistance of the flow guide fitting, and reducing the risk of loosening after long-term operation.

[0047] Specifically, the press-fit pipe body 1, the eccentric diversion plate 2, and the diversion clamp 3 are all made of steel, with Q355 steel or 16Mn steel as the material. The measured tensile strength of the all-steel parts can reach 528MPa, which is 87% higher than the tensile strength of the existing aluminum parts of 282MPa. This can effectively reduce the risk of hardware falling off under ground wire icing or strong wind loads.

[0048] The drawer-type crimping tube 11 and the steel drawer 12 form a tubular structure, and the plug block 14 is slidably connected inside the plug groove 13.

[0049] Specifically, the cross-section of the steel drawer 12 is fan-shaped ring 15. The insertion groove 13 opened on the drawer-type crimping tube 11 has the same depth as the insertion block 14, which is used to slide and cooperate with the insertion block 14 of the steel drawer 12 to jointly wrap the main ground wire 360 ​​degrees.

[0050] The drain clamp 3 includes a steel clamp 31, with a tube hole 32 inside the steel clamp 31, and a terminal plate 33 fixedly connected to the end of the steel clamp 31.

[0051] Specifically, the steel clamp 31 is made of Q355 steel or 16Mn steel, which is consistent with the material of the crimping tube body 1, ensuring high mechanical strength and excellent corrosion resistance. The tube hole 32 is used to fit the drain line. The outer diameter of the tube hole 32 is 22mm and the wall thickness is 5mm, which ensures that the steel clamp 31 has sufficient plastic deformation capacity to tighten the drain line when using hydraulic tools for crimping, while avoiding cracking itself.

[0052] During construction, a hydraulic crimping tool is used to apply a pressure of 50-70 MPa to both ends of the pipe hole 32 for 12-18 seconds. After crimping, the fastening tension between the drain clamp 3 and the drain line is not less than 15 kN, which meets the force requirements when the ground wire is de-iced.

[0053] Furthermore, the use of the pull-out crimping tube 11 and the steel pull-out tube 12, along with the snap-fit ​​assembly 5, allows construction workers to directly snap the pull-out crimping tube 11 and the steel pull-out tube 12 into the predetermined installation position of the main ground wire, achieving initial positioning. This eliminates the need for manual assistance during subsequent operations, allowing construction workers to safely perform subsequent operations. Construction workers use hydraulic crimping tools for crimping operations, facilitating on-site construction and improving construction efficiency.

[0054] The terminal plate 33 is 30mm long, 30mm wide, and 10mm thick. The width and thickness of the terminal plate 33 are exactly the same as the width of the eccentric drain plate 2 (30mm) and the thickness of the eccentric drain plate 2 (10mm). This allows the terminal plate 33 and the eccentric drain plate 2 to form a flat and tightly fitting conductive and stress-bearing interface after being connected by the connecting component 4.

[0055] Please see Figure 3 The connecting component 4 includes connecting holes 41 symmetrically opened on the outer sides of the terminal plate 33 and the eccentric drain plate 2. Connecting bolts 42 are provided inside the terminal plate 33 and the eccentric drain plate 2. Hexagonal nuts 43 are threadedly connected to the outer side of the connecting bolts 42. Washers 44 are provided between the connecting bolts 42 and the terminal plate 33. The connecting bolts 42 are located inside the connecting holes 41.

[0056] Specifically, two connecting holes 41 are symmetrically opened on the connecting end of the eccentric diversion plate 2 and the terminal plate 33 of the diversion clamp 3. To accommodate the connecting bolt 42, the diameter of the connecting hole 41 is 14mm, and the center distance between the two connecting holes 41 is 20mm, which can ensure the stability of the connection of the connecting bolt 42 and ensure docking with the eccentric diversion plate 2. In order to prevent the edge of the eccentric diversion plate 2 from cracking when subjected to force, the distance between the edge of the connecting hole 41 and the edge of the eccentric diversion plate 2 is 8mm.

[0057] The connecting bolt 42 is a high-strength carbon steel bolt with an M14 specification and a length of 35mm. This length design ensures that after the connecting bolt 42 penetrates the eccentric drain plate 2 and the terminal plate 33, it still has enough length to install the washer 44 and the hexagonal nut 43. The hexagonal nut 43 is matched with the connecting bolt 42 and has a thickness of 8mm.

[0058] The gasket 44 is a flat gasket with a thickness of 2mm. The gasket 44 is placed between the head of the connecting bolt 42 and the terminal plate 33 to increase the contact area and enhance the sealing and anti-loosening performance of the connection.

[0059] During installation, align the terminal plate 33 with the eccentric drain plate 2 so that the connecting hole 41 is through. Then, pass the connecting bolt 42 through the washer 44, the terminal plate 33 and the connecting hole 41 on the eccentric drain plate 2 in sequence. Finally, use a hexagonal nut 43 to tighten the thread on the outside of the connecting bolt 42.

[0060] Please see Figure 8 The snap-fit ​​assembly 5 includes an arc-shaped part 51 symmetrically welded and fixed to the outside of the crimp tube body 1. An arc-shaped groove 52 is provided inside the arc-shaped part 51. Limiting grooves 53 are provided inside the arc-shaped part 51 and on both sides of the arc-shaped groove 52. An arc-shaped retaining ring 54 is also provided inside the arc-shaped part 51. Limiting blocks 55 are symmetrically fixedly connected to both sides of the arc-shaped retaining ring 54. A locking assembly 6 for locking is provided at the end of the arc-shaped retaining ring 54.

[0061] Specifically, an arc-shaped groove 52 is provided inside the arc-shaped part 51. The arc-shaped groove 52 provides a track that surrounds the pressure pipe body 1. In order to ensure the stability of sliding, limit grooves 53 are also symmetrically provided on both sides of the arc-shaped groove 52.

[0062] The arc-shaped retaining ring 54 is slidably connected inside the arc-shaped groove 52, and the limiting block 55 is slidably connected inside the limiting groove 53.

[0063] Specifically, the main body of the arc-shaped retaining ring 54 is designed to be slidably accommodated inside the arc-shaped groove 52. In order to constrain the arc-shaped retaining ring 54 within the predetermined track and prevent the arc-shaped retaining ring 54 from falling off when pulled out or closed, limit blocks 55 are symmetrically fixedly connected to both sides of the arc-shaped retaining ring 54.

[0064] The arc-shaped component 51 and the arc-shaped retaining ring 54 form a ring structure, and the inner walls of the arc-shaped component 51 and the arc-shaped retaining ring 54 abut against the outer wall of the press-fit pipe body 1.

[0065] Specifically, during construction, the construction personnel can pull out the arc-shaped retaining ring 54 along the arc-shaped sliding groove 52, so that the arc-shaped retaining ring 54 and the fixed arc-shaped part 51 can be closed together to form a complete ring structure. The inner wall of the ring structure abuts against the outer wall of the press-fit pipe body 1.

[0066] The locking assembly 6 includes a first connecting block 61 fixedly connected to the outside of the arc-shaped member 51, a second connecting block 62 fixedly connected to the outside of the arc-shaped retaining ring 54, a threaded hole 63 on the surface of the first connecting block 61, a locking bolt 64 rotatably connected inside the second connecting block 62, and a handle 65 fixedly connected to the end of the locking bolt 64.

[0067] Specifically, the construction worker rotates the hand-held part 65 of the locking assembly 6, driving the locking bolt 64 to rotate. The thread of the locking bolt 64 is screwed into the threaded hole 63 of the first connecting block 61. Since the locking bolt 64 is rotatably connected to the second connecting block 62, the tightening action will cause the first connecting block 61 and the second connecting block 62 to move closer to each other.

[0068] As the first connecting block 61 and the second connecting block 62 approach each other, the annular tubular structure formed by the arc-shaped part 51 and the arc-shaped retaining ring 54 applies radial clamping force inward. By pressing the tube wall of the tube body 1, the entire fitting is clamped in the predetermined installation position of the main ground wire, thus achieving preliminary positioning.

[0069] The first connecting block 61 and the second connecting block 62 are arranged opposite to each other, and the locking bolt 64 is threadedly connected to the inside of the threaded hole 63.

[0070] The eccentric drainage plate 2 has reinforcing ribs 7 welded to both sides, and the edges of the reinforcing ribs 7 are welded to the outer wall surface of the pull-out type press pipe 11.

[0071] Specifically, a locking component 6 for locking is provided at the end of the arc-shaped retaining ring 54. The locking component 6 is used to apply a pulling force to the arc-shaped part 51 and the arc-shaped retaining ring 54, so that the arc-shaped part 51 and the arc-shaped retaining ring 54 move closer to each other and lock together. This locking action will cause the annular structure formed by the arc-shaped part 51 and the arc-shaped retaining ring 54 to generate a radial contraction force. The radial contraction force is transmitted through the pipe wall of the crimping pipe body 1 and finally tightly wraps the main ground wire inside the crimping pipe body 1, thereby realizing the pre-positioning function without manual assistance.

[0072] By welding reinforcing ribs 7 to both sides of the eccentric diversion plate and welding the edges of the reinforcing ribs 7 to the outer wall of the pull-out type compression pipe 11, a stable triangular support is formed due to the triangular structure of the reinforcing ribs 7. This enhances the connection stiffness and bending moment resistance of the eccentric diversion plate 2, ensuring that the eccentric diversion plate 2 will not loosen or fatigue fracture when subjected to compression stress, vibration and diversion line tension, thus improving the overall structural stability.

[0073] Working principle: The construction personnel first combine the steel drawer 12 and the drawer-type crimping pipe 11. By using the insertion block 14 to slide into the insertion groove 13, the steel drawer 12 and the drawer-type crimping pipe 11 are closed and together wrap around the main ground wire 360 ​​degrees to form a complete crimping pipe body 1. Then, the movable part arc-shaped retaining ring 54 in the snap-fit ​​assembly 5 is pulled out. During this process, the limiting block 55 is driven to slide inside the limiting slide groove 53. At this time, the arc-shaped part 51 and the arc-shaped retaining ring 54 together form a ring-shaped tubular structure, thereby holding the outer wall of the crimping pipe body 1.

[0074] The construction worker rotates the hand-held part 65 of the locking assembly 6, driving the locking bolt 64 to rotate. The thread of the locking bolt 64 is screwed into the threaded hole 63 of the first connecting block 61. Since the locking bolt 64 is rotatably connected to the second connecting block 62, the tightening action will cause the first connecting block 61 and the second connecting block 62 to move closer to each other.

[0075] As the first connecting block 61 and the second connecting block 62 approach each other, the annular tubular structure formed by the arc-shaped part 51 and the arc-shaped retaining ring 54 applies radial clamping force inward. By pressing the tube wall of the tube body 1, the entire fitting is clamped in the predetermined installation position of the main ground wire, thus achieving preliminary positioning.

[0076] After initial positioning, subsequent operation of the fittings does not require manual assistance, allowing construction personnel to safely carry out subsequent operations. Construction personnel use hydraulic crimping tools to apply pressure to the crimping pipe body 1, which has been fixed by the snap-fit ​​component 5, to perform the crimping operation.

[0077] Under high pressure, the steel crimping tube body 1 undergoes plastic deformation, causing the tube wall of the crimping tube body 1 to compress inward. At this time, the connection between the pull-out crimping tube 11 and the steel pull-out tube 12, namely the insertion groove 13 and the insertion block 14, will deform. Since the edge of the insertion groove 13 is thinner than the wall thickness of the pull-out crimping tube 11, the edge of the insertion groove 13 will deform first under pressure, locking the insertion block 14, so that the pull-out crimping tube 11 and the steel pull-out tube 12 have a better locking force.

[0078] This high-pressure deformation causes the inner wall of the crimping tube body 1 to fit tightly against the outer surface of the main ground wire, forming greater friction and metal bonding, thus achieving better fixation.

[0079] Insert the end of the drain wire into the tube hole 32 inside the steel wire clamp 31 and fix it with a hydraulic crimping tool. Then, pass the connecting bolt 42 through the connecting hole 41 and fix the terminal plate 33 of the drain wire clamp 3 and the eccentric drain plate 2 together with the connecting bolt 42 and the hexagonal nut 43.

Claims

1. A grounding wire crimp-type current-conducting fitting, characterized in that, The device includes a crimping tube body (1), an eccentric drainage plate (2) is welded and fixed to the outside of the crimping tube body (1), a drainage clamp (3) is detachably connected to the outside of the eccentric drainage plate (2), a connecting component (4) for fixed installation is provided between the eccentric drainage plate (2) and the drainage clamp (3), and a snap-fit ​​component (5) for auxiliary fixing is provided on the outside of the crimping tube body (1). The crimping tube body (1) includes a drawer-type crimping tube (11), and a steel drawer (12) is provided on the outside of the drawer-type crimping tube (11). Both the drawer-type crimping tube (11) and the steel drawer (12) have an arc-shaped structure. The edge of the drawer-type crimping tube (11) is provided with a plug groove (13). The edge of the steel drawer (12) is fixedly connected with a plug block (14). A fan-shaped ring (15) is formed inside the drawer-type crimping tube (11).

2. The grounding crimp type current-conducting fitting according to claim 1, characterized in that, The pull-out type press tube (11) and the steel pull-out box (12) form a tubular structure, and the plug block (14) is slidably connected inside the plug slot (13).

3. The grounding crimp type current-conducting fitting according to claim 1, characterized in that, The drain clamp (3) includes a steel clamp (31), the steel clamp (31) has a tube hole (32) inside, and a terminal plate (33) is fixedly connected to the end of the steel clamp (31).

4. The grounding crimp type current-conducting fitting according to claim 3, characterized in that, The connecting assembly (4) includes connecting holes (41) symmetrically opened on the outside of the terminal plate (33) and the eccentric drain plate (2). Connecting bolts (42) are provided inside the terminal plate (33) and the eccentric drain plate (2). A hexagonal nut (43) is threaded on the outside of the connecting bolt (42). A washer (44) is provided between the connecting bolt (42) and the terminal plate (33). The connecting bolt (42) is located inside the connecting hole (41).

5. The grounding crimp type current-conducting fitting according to claim 1, characterized in that, The snap-fit ​​assembly (5) includes an arc-shaped part (51) symmetrically welded and fixed to the outside of the crimp tube body (1). An arc-shaped groove (52) is provided inside the arc-shaped part (51). A limiting groove (53) is provided inside the arc-shaped part (51) and on both sides of the arc-shaped groove (52). An arc-shaped retaining ring (54) is also provided inside the arc-shaped part (51). A limiting block (55) is symmetrically fixed to both sides of the arc-shaped retaining ring (54). A locking assembly (6) for locking is provided at the end of the arc-shaped retaining ring (54).

6. The grounding crimp type current-conducting fitting according to claim 5, characterized in that, The arc-shaped retaining ring (54) is slidably connected inside the arc-shaped groove (52), and the limiting block (55) is slidably connected inside the limiting groove (53).

7. The grounding crimp type current-conducting fitting according to claim 5, characterized in that, The arc-shaped component (51) and the arc-shaped retaining ring (54) form a circular structure, and the inner walls of the arc-shaped component (51) and the arc-shaped retaining ring (54) abut against the outer wall of the press-fit pipe body (1).

8. The grounding crimp type current-conducting fitting according to claim 5, characterized in that, The locking assembly (6) includes a first connecting block (61) fixedly connected to the outside of the arc-shaped part (51), a second connecting block (62) fixedly connected to the outside of the arc-shaped retaining ring (54), a threaded hole (63) is provided on the surface of the first connecting block (61), a locking bolt (64) is rotatably connected inside the second connecting block (62), and a hand-held part (65) is fixedly connected to the end of the locking bolt (64).

9. The grounding crimp type current-conducting fitting according to claim 8, characterized in that, The first connecting block (61) and the second connecting block (62) are arranged opposite to each other, and the locking bolt (64) is threaded into the inside of the threaded hole (63).

10. The grounding crimp type current-conducting fitting according to claim 1, characterized in that, The eccentric drainage plate (2) has reinforcing ribs (7) welded to both sides, and the edges of the reinforcing ribs (7) are welded to the outer wall surface of the pull-out type press pipe (11).

Images