A ground wire connector

Abstract

The present invention belongs to the technical field of power equipment maintenance, and specifically discloses a grounding wire connector, which includes a mounting base and a protective housing on its upper side. The protective housing is divided into upper and lower parts by an intermediate plate, and a connecting mechanism is arranged in the space formed by the mounting base and the protective housing; the connecting mechanism includes a wire pressing component, a rotary wiring component, a dynamic connection component, a reliability connection extrusion component and a self-locking retracting and releasing component. In the present invention, a notch is provided on the outer wall of the winding drum, and two grounding wires are crimped. During this process, the two grounding wires are reliably connected by using an airbag, and the winding lengths of the two grounding wires can be changed, so that the position of the connector can be changed without re-wiring.

Description

Technical Field

[0001] The present invention belongs to the technical field of power equipment maintenance, and specifically refers to a grounding wire connector. Background Art

[0002] A grounding wire connector is a connector that forms a low-resistance connection with the ground. When the power supply system and electrical equipment are under maintenance during a power outage, temporary grounding is required to prevent electric shock accidents to operating personnel caused by sudden power-on of the de-energized line or equipment.

[0003] During the use of the grounding wire, usually a terminal lug is directly used to fix one end of the grounding wire, and then the terminal lugs of two grounding wires are fixed by bolts, and the connecting wire of the grounding wire is placed in a protective box. Since the space of the protective box is small, it is difficult to connect the grounding wire to the bolt, which poses a major potential safety hazard to maintenance personnel. The connection between the terminal lug and the grounding wire is easily loosened due to external dragging force, and generally, after the terminal lug is connected to the grounding wire, the position cannot be moved, which may cause inconvenience to maintenance.

[0004] Therefore, a grounding wire connector is needed to solve the above problems. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, the present invention provides a grounding wire connector. A notch is provided on the outer wall of the winding drum, and two grounding wires are crimped. During this process, the two grounding wires are reliably connected by using an airbag, and the winding lengths of the two grounding wires can be changed, so that the position of the connector can be changed without re-wiring.

[0006] The technical solution adopted by the present invention is as follows: The present invention provides a grounding wire connector, including a mounting base and a protective housing on its upper side. The protective housing is divided into upper and lower parts by an intermediate plate. A connecting mechanism is provided in the space formed by the mounting base and the protective housing;

[0007] The connecting mechanism includes a wire pressing component, a rotary wiring component, a dynamic connection component, a reliable connection extrusion component, and a self-locking winding and unwinding component. The wire pressing component is symmetrically arranged between the upper wall of the mounting base and the intermediate plate. The rotary wiring component is arranged between the upper wall of the protective housing and the intermediate plate. The dynamic connection component is arranged inside the wire pressing component. The reliable connection extrusion component is arranged inside the wire pressing component. The self-locking winding and unwinding component is arranged on the lower wall of the mounting base;

[0008] Further, the wire pressing assembly includes a winding drum, a rotating ring, and a pressing plate. The rotating ring is provided on the lower wall of the middle plate. The winding drum is a hollow cavity with an open upper end, and is provided on the upper wall of the mounting seat. Symmetrical notches are provided on the outer side wall of the winding drum, and symmetrical arc-shaped through grooves are provided on the upper wall of the winding drum. The through grooves and the notches correspond to each other vertically. The rotating ring is rotatably connected to the middle plate, and the pressing plates are symmetrically provided on the lower wall of the rotating ring. The pressing plates are slidably provided in the through grooves.

[0009] Further, the rotary wiring assembly includes a movable block, a metal rod, a metal tube, an insulating block, an adjusting handle, and an adjusting threaded rod. The movable block is slidably provided in the winding drum. The metal tube is a U-shaped tube, and both ends of the metal tube slidably penetrate through the middle plate. The metal rod penetrates through the center of the movable block, and the upper end of the metal rod is inserted into both ends of the metal tube. The insulating block is provided in the middle of the metal tube. The adjusting threaded rod is provided on the insulating block through threading, and the upper end of the adjusting threaded rod penetrates through the upper wall of the protective housing. The adjusting handle is provided outside the protective housing and is provided at the upper end of the adjusting threaded rod.

[0010] Further, the dynamic connection assembly includes metal plates, docking plates, restoring springs, metal blocks, guide rods, and fixing blocks. The fixing blocks are symmetrically provided on the lower end surface of the movable block. Both ends of the guide rod are respectively provided on the two fixing blocks. There are two metal plates, and the two metal plates are slidably provided on the guide rod. The restoring spring is sleeved on the guide rod, and both ends of the restoring spring are respectively provided on the fixing block and the metal plate. The guide rod is made of metal. The docking plate is provided on the inner side wall of the metal plate, and the docking plate is made of metal. The metal block is provided in the middle of the guide rod, and the metal block is rotatably connected to the lower end of the metal rod.

[0011] Further, the reliable connection and extrusion assembly includes air bags, connection platforms, sliding rods, and support springs. The air bags are symmetrically provided at the lower part of the inner wall of the winding drum, corresponding to the metal plates. Symmetrical air holes are provided on the upper end surface of the winding drum. The air holes are blind holes and are connected to the air bags through air pipes. The air holes are provided between the through grooves. The connection platforms are provided at the upper edge of the movable block. The upper ends of the sliding rods are provided on the lower wall of the connection platforms, and the lower ends of the sliding rods are slidably provided in the air holes. The lower ends of the support springs are provided on the inner bottom wall of the air holes, and the upper ends of the support springs are provided on the lower ends of the sliding rods.

[0012] Further, limiting holes are arranged in an array along the circumferential direction on the lower wall of the notch, and blocking shafts are arranged in an array along the circumferential direction on the lower wall of the pressing plate. The limiting holes and the blocking shafts correspond to each other one by one.

[0013] Further, the self-locking retracting and deploying assembly includes a winding knob, a winding shaft, and a locking screw. The winding shaft is connected to the upper end of the winding drum. The winding knob is provided at the lower end of the winding shaft. The locking screw is threadedly passed through the lower wall of the mounting seat and corresponds to the lower end of the winding drum.

[0014] Further, wire grooves are symmetrically provided on the outer wall of the protective housing, and the wire grooves are aligned with the inner side of the notch.

[0015] Further, the mounting seat and the protective housing are fixed by bolts.

[0016] Further, mounting legs are symmetrically provided in pairs on the lower wall of the mounting seat.

[0017] The beneficial effects achieved by the present invention with the above structure are as follows:

[0018] In the initial state, the protective housing is lifted upward, the lower end surface of the protective housing exceeds the height of the notch, and at the same time, the support spring pushes the sliding rod upward. The sliding rod drives the connecting platform and the movable block upward, and the movable block drives the dynamic connection assembly upward, and the height of the metal plate exceeds the height of the notch;

[0019] Put two grounding wires into the notch, press down the protective housing, and the protective housing drives the pressing plate to move downward in the through groove until the pressing plate presses the two grounding wires. At this time, the blocking shaft on the lower wall of the pressing plate enters the limiting hole, and then the protective housing is fixed to the mounting seat by bolts;

[0020] The protective housing drives the adjusting screw rod and the insulating block to move downward, the insulating block drives the metal tube to move downward, the two ends of the metal tube can slide on the metal rod, the metal rod completely enters the metal tube, and the lower end of the metal tube contacts the upper end surface of the movable block. When the adjusting screw rod drives the insulating block to move downward, the insulating block drives the metal tube to move downward, and the two ends of the metal tube press down the movable block. The movable block drives the metal plate in the dynamic connection assembly to move downward, and the metal plate is always on both sides of the grounding wire under the action of the restoring spring;

[0021] When the movable block moves downward, it drives the connecting platform and the sliding rod to move downward. The sliding rod presses the gas in the air hole into the airbag, and the airbag expands. The airbag squeezes the metal plate, and the two metal plates finally clamp the grounding wire in the middle and are reliably connected. At this time, the metal plate, the docking plate, the guide rod, the metal block, the metal rod, and the metal tube connect the two grounding wires together to complete reliable grounding;

[0022] Rotate the winding knob, and then rotate the winding shaft. The winding shaft drives the winding drum to rotate. The winding drum can wind or release the grounding wire. Therefore, the installation position of the mounting leg can be arbitrarily changed according to the specific situation. When the winding drum rotates, the winding drum drives the grounding wire to wind, the grounding wire drives the metal plate to rotate, the metal plate drives the guide rod and the fixing block to rotate, the fixing block drives the movable block to rotate, the movable block drives the metal rod to rotate, and the metal rod rotates inside the metal tube. Therefore, it will not drive the metal tube to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic perspective view of a grounding wire connector proposed by the present invention;

[0024] Figure 2 FIG. is a schematic internal structure view of a grounding wire connector proposed by the present invention;

[0025] Figure 3 is Figure 2 front view of;

[0026] Figure 4 FIG. is a schematic perspective view of the connecting mechanism;

[0027] Figure 5 FIG. is a schematic perspective view of the winding drum, movable block, metal rod and metal tube;

[0028] Figure 6 FIG. is a schematic perspective view of the movable block and the dynamic connection component;

[0029] Figure 7 FIG. is a schematic perspective view of the metal rod, metal tube and dynamic connection component;

[0030] Figure 8 FIG. is a schematic perspective view of the dynamic connection component;

[0031] Figure 9 FIG. is a cross-sectional view of the winding drum;

[0032] Figure 10 FIG. is a schematic perspective view of the pressing plate and the retaining shaft;

[0033] Figure 11 is Figure 6 enlarged view of part A in;

[0034] Among them, 1. mounting base, 2. protective housing, 3. intermediate plate, 4. connecting mechanism, 5. wire pressing assembly, 6. rotary wiring assembly, 7. dynamic connection assembly, 8. reliability connection extrusion assembly, 9. self-locking retracting and deploying assembly, 10. winding drum, 11. rotating ring, 12. pressing plate, 13. notch, 14. through groove, 15. movable block, 16. metal rod, 17. metal tube, 18. insulating block, 19. adjusting handle, 20. adjusting threaded rod, 21. metal plate, 22. restoring spring, 23. guide rod, 24. fixed block, 25. airbag, 26. connecting platform, 27. sliding rod, 28. supporting spring, 29. air hole, 30. limiting hole, 31. blocking shaft, 32. winding knob, 33. winding shaft, 34. locking screw, 35. wire groove, 36. bolt, 37. mounting leg, 38. grounding wire, 39. docking plate, 40. metal block, 41. ventilation pipe.

[0035] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship 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 operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0038] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 shown, the present invention provides a grounding wire connector, which includes a mounting base 1 and a protective housing 2 above it. The interior of the protective housing 2 is divided into upper and lower parts by an intermediate plate 3. A connecting mechanism 4 is provided in the space formed by the mounting base 1 and the protective housing 2;

[0039] The connection mechanism 4 includes a wire pressing assembly 5, a rotary wiring assembly 6, a dynamic connection assembly 7, a reliable connection extrusion assembly 8, and a self-locking retracting and releasing assembly 9. The wire pressing assembly 5 is symmetrically arranged between the upper wall of the mounting base 1 and the intermediate plate 3. The rotary wiring assembly 6 is arranged between the upper wall of the protective housing 2 and the intermediate plate 3. The dynamic connection assembly 7 is arranged inside the wire pressing assembly 5. The reliable connection extrusion assembly 8 is arranged inside the wire pressing assembly 5. The self-locking retracting and releasing assembly 9 is arranged on the lower wall of the mounting base 1;

[0040] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, the wire pressing assembly 5 includes a winding drum 10, a rotating ring 11, and a pressing plate 12. The rotating ring 11 is arranged on the lower wall of the intermediate plate 3. The winding drum 10 is a hollow cavity with an open upper end. The winding drum 10 is arranged on the upper wall of the mounting base 1. Symmetrical notches 13 are provided on the outer side wall of the winding drum 10. Symmetrical through slots 14 are provided on the upper wall of the winding drum 10. The through slots 14 are arc-shaped. The through slots 14 and the notches 13 correspond to each other up and down. The rotating ring 11 is rotatably connected to the intermediate plate 3. The pressing plates 12 are symmetrically arranged on the lower wall of the rotating ring 11. The pressing plates 12 are slidably arranged in the through slots 14.

[0041] As Figure 1 , Figure 2 , Figure 3 shown, the rotary wiring assembly 6 includes a movable block 15, a metal rod 16, a metal tube 17, an insulating block 18, an adjusting handle 19, and an adjusting threaded rod 20. The movable block 15 is slidably arranged in the winding drum 10. The metal tube 17 is a U-shaped tube. The two ends of the metal tube 17 slidably penetrate through the intermediate plate 3. The metal rod 16 penetrates through the center of the movable block 15. The upper end of the metal rod 16 is inserted into the two ends of the metal tube 17. The insulating block 18 is arranged in the middle of the metal tube 17. The adjusting threaded rod 20 is arranged on the insulating block 18 through threads. The upper end of the adjusting threaded rod 20 penetrates through the upper wall of the protective housing 2. The adjusting handle 19 is arranged outside the protective housing 2. The adjusting handle 19 is arranged at the upper end of the adjusting threaded rod 20.

[0042] As Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 11As shown, the dynamic connection component 7 includes a metal plate 21, a docking plate 39, a restoring spring 22, a metal block 40, a guide rod 23 and a fixed block 24. The fixed blocks 24 are symmetrically arranged on the lower end surface of the movable block 15. The two ends of the guide rod 23 are respectively arranged on the two fixed blocks 24. There are two metal plates 21 which are slidably arranged on the guide rod 23. The restoring spring 22 is sleeved on the guide rod 23, and the two ends of the restoring spring 22 are respectively arranged on the fixed block 24 and the metal plate 21. The guide rod 23 is made of metal. The docking plate 39 is arranged on the inner side wall of the metal plate 21, and the docking plate 39 is made of metal. The metal block 40 is arranged in the middle of the guide rod 23, and the metal block 40 is rotatably connected to the lower end of the metal rod 16.

[0043] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 9 As shown, the reliable connection extrusion component 8 includes an airbag 25, a connecting platform 26, a sliding rod 27 and a supporting spring 28. The airbags 25 are symmetrically arranged at the lower part of the inner wall of the winding drum 10. The airbags 25 correspond to the metal plates 21. The upper end surface of the winding drum 10 is symmetrically provided with air holes 29 which are blind holes. The air holes 29 are connected to the airbags 25 through a ventilation pipe 41. The air holes 29 are arranged between the through grooves 14. The connecting platform 26 is arranged at the upper edge of the movable block 15. The upper end of the sliding rod 27 is arranged on the lower wall of the connecting platform 26, and the lower end of the sliding rod 27 is slidably arranged in the air hole 29. The lower end of the supporting spring 28 is arranged on the inner bottom wall of the air hole 29, and the upper end of the supporting spring 28 is arranged at the lower end of the sliding rod 27.

[0044] As Figure 2 , Figure 4 , Figure 5 , Figure 9 , Figure 10 As shown, a plurality of limiting holes 30 are arranged at the lower wall of the notch 13 along the circumferential direction, and a plurality of blocking shafts 31 are arranged at the lower wall of the pressing plate 12 along the circumferential direction. The limiting holes 30 and the blocking shafts 31 correspond to each other one by one.

[0045] As Figure 1 , Figure 2 , Figure 3 As shown, the self-locking winding and unwinding component 9 includes a winding knob 32, a winding shaft 33 and a locking screw 34. The winding shaft 33 is connected to the upper end of the winding drum 10. The winding knob 32 is arranged at the lower end of the winding shaft 33. The locking screw 34 is threadedly penetrated through the lower wall of the mounting seat 1, and the locking screw 34 corresponds to the lower end of the winding drum 10.

[0046] As Figure 1 ,Figure 2 , Figure 4 As shown in Figure 4 , wire grooves 35 are symmetrically provided on the outer wall of the protective housing 2, and the wire grooves 35 are aligned with the inner side of the notch 13.

[0047] As Figure 1 shown in Figure 1 , the mounting base 1 and the protective housing 2 are fixed by bolts 36.

[0048] As Figure 1 shown in Figure 1 , mounting legs 37 are symmetrically provided in pairs on the lower wall of the mounting base 1.

[0049] During specific use, the connector is installed at the corresponding position by using the mounting legs 37. The protective housing 2 is lifted upward until the lower end surface of the protective housing 2 exceeds the height of the notch 13. Then, the paint coatings of the two grounding wires 38 are peeled off respectively, and the two grounding wires 38 are placed into the notch 13. At this time, the support spring 28 pushes the sliding rod 27 upward. The sliding rod 27 drives the connecting platform 26 and the movable block 15 upward. The movable block 15 drives the dynamic connection assembly 7 upward, and the height of the metal plate 21 exceeds the height of the notch 13. Then, the protective housing 2 is pressed downward. The protective housing 2 drives the pressing plate 12 to move downward. The pressing plate 12 moves downward in the through groove 14 until the pressing plate 12 presses the two grounding wires 38. At this time, the blocking shaft 31 on the lower wall of the pressing plate 12 enters into the limiting hole 30. Then, the protective housing 2 is fixed on the mounting base 1 by using the bolts 36. At this time, the grounding wires 38 penetrate through the wire grooves 35 on the side wall of the protective housing 2. At the same time, the protective housing 2 drives the adjusting screw rod 20 and the insulating block 18 to move downward. The insulating block 18 drives the metal tube 17 to move downward. The two ends of the metal tube 17 can slide on the metal rod 16. The metal rod 16 completely enters into the metal tube 17. The lower end of the metal tube 17 contacts the upper end surface of the movable block 15;

[0050] Then, the adjusting handle 19 is rotated, and thus the adjusting screw rod 20 is rotated. The adjusting screw rod 20 drives the insulating block 18 to move downward. The insulating block 18 drives the metal tube 17 to move downward. The two ends of the metal tube 17 press the movable block 15 downward. The movable block 15 drives the dynamic connection assembly 7 to move downward. The metal plate 21 in the dynamic connection assembly 7 moves downward. The metal plate 21 is always on both sides of the grounding wire 38 under the action of the restoring spring 22. When the movable block 15 moves downward, it drives the connecting platform 26 to move downward. The connecting platform 26 drives the sliding rod 27 to move downward. The sliding rod 27 presses the gas in the air hole 29 into the air bag 25. The air bag 25 expands. The air bag 25 presses the metal plate 21. The two metal plates 21 finally clamp the grounding wire 38 in the middle and are reliably connected. At this time, the metal plate 21, the docking plate 39, the guide rod 23, the metal block 40, the metal rod 16 and the metal tube 17 connect the two grounding wires 38 together to complete reliable grounding;

[0051] Rotate the winding knob 32, and then rotate the winding shaft 33. The winding shaft 33 drives the winding drum 10 to rotate. The winding drum 10 can wind or release the grounding wire 38. Therefore, the installation position of the mounting leg 37 can be arbitrarily changed according to the specific situation. After the installation position is determined, tighten the locking screw 34 to fix the winding drum 10 to the mounting seat 1. When the winding drum 10 rotates, the winding drum 10 drives the grounding wire 38 to wind. The grounding wire 38 drives the metal plate 21 to rotate. The metal plate 21 drives the guide rod 23 and the fixing block 24 to rotate. The fixing block 24 drives the movable block 15 to rotate. The movable block 15 drives the metal rod 16 to rotate. The metal rod 16 rotates within the metal tube 17. Therefore, it will not drive the metal tube 17 to rotate.

[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

[0054] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A ground wire connector, comprising a mounting base (1) and a protective housing (2) on its upper side, characterized in that: The space inside the protective housing (2) is divided into upper and lower parts by an intermediate plate (3), and a connecting mechanism (4) is provided in the space formed by the mounting base (1) and the protective housing (2). The connecting mechanism (4) includes a wire pressing assembly (5), a rotary wiring assembly (6), a dynamic connection assembly (7), a reliable connection extrusion assembly (8) and a self-locking retracting and releasing assembly (9). The wire pressing assembly (5) is arranged between the upper wall of the mounting base (1) and the intermediate plate (3). The rotary wiring assembly (6) is arranged between the upper wall of the protective housing (2) and the intermediate plate (3). The dynamic connection assembly (7) is arranged inside the wire pressing assembly (5). The reliable connection extrusion assembly (8) is arranged inside the wire pressing assembly (5). The self-locking retracting and releasing assembly (9) is arranged on the lower wall of the mounting base (1). The wire pressing assembly (5) includes a winding drum (10), a rotating ring (11) and a pressing plate (12). The rotating ring (11) is arranged on the lower wall of the intermediate plate (3). The winding drum (10) is a hollow cavity with an open upper end. The winding drum (10) is arranged on the upper wall of the mounting base (1). Symmetrical notches (13) are provided on the outer side wall of the winding drum (10). Symmetrical through grooves (14) are provided on the upper wall of the winding drum (10). The through grooves (14) are arc-shaped and are vertically corresponding to the notches (13). The rotating ring (11) is rotatably connected to the intermediate plate (3). The pressing plates (12) are symmetrically arranged on the lower wall of the rotating ring (11), and the pressing plates (12) are slidably arranged in the through grooves (14). The rotary wiring assembly (6) includes a movable block (15), a metal rod (16), a metal tube (17), an insulating block (18), an adjusting handle (19) and an adjusting threaded rod (20). The movable block (15) is slidably arranged in the winding drum (10). The metal tube (17) is a U-shaped tube. The two ends of the metal tube (17) slidably penetrate through the intermediate plate (3). The metal rod (16) penetrates through the center of the movable block (15). The upper end of the metal rod (16) is inserted into the two ends of the metal tube (17). The insulating block (18) is arranged in the middle of the metal tube (17). The adjusting threaded rod (20) is arranged on the insulating block (18) through threads. The upper end of the adjusting threaded rod (20) penetrates through the upper wall of the protective housing (2). The adjusting handle (19) is arranged outside the protective housing (2), and the adjusting handle (19) is arranged at the upper end of the adjusting threaded rod (20). The dynamic connection component (7) includes a metal plate (21), a docking plate (39), a restoring spring (22), a metal block (40), a guide rod (23) and a fixed block (24). The fixed blocks (24) are symmetrically arranged on the lower end surface of the movable block (15). The two ends of the guide rod (23) are respectively arranged on the two fixed blocks (24). There are two metal plates (21), and the two metal plates (21) are slidably arranged on the guide rod (23). The restoring spring (22) is sleeved on the guide rod (23), and the two ends of the restoring spring (22) are respectively arranged on the fixed block (24) and the metal plate (21). The guide rod (23) is made of metal. The docking plate (39) is arranged on the inner side wall of the metal plate (21), and the docking plate (39) is made of metal. The metal block (40) is arranged in the middle of the guide rod (23), and the metal block (40) is rotatably connected to the lower end of the metal rod (16); The reliable connection and extrusion component (8) includes an airbag (25), a connection platform (26), a sliding rod (27) and a support spring (28). The airbags (25) are symmetrically arranged at the lower part of the inner wall of the winding drum (10). The airbags (25) correspond to the metal plates (21). The upper end surface of the winding drum (10) is symmetrically provided with air holes (29). The air holes (29) are blind holes. The air holes (29) are connected to the airbags (25) through a ventilation pipe (41). The air holes (29) are arranged between the through grooves (14). The connection platform (26) is arranged at the upper edge of the movable block (15). The upper end of the sliding rod (27) is arranged on the lower wall of the connection platform (26). The lower end of the sliding rod (27) is slidably arranged in the air hole (29). The lower end of the support spring (28) is arranged on the inner bottom wall of the air hole (29), and the upper end of the support spring (28) is arranged on the lower end of the sliding rod (27); The lower wall of the notch (13) is circumferentially provided with limiting holes (30) in an array, and the lower wall of the pressing plate (12) is circumferentially provided with blocking shafts (31) in an array. The limiting holes (30) and the blocking shafts (31) are in one-to-one correspondence.

2. The ground wire connector according to claim 1, wherein: The self-locking winding and unwinding component (9) includes a winding knob (32), a winding shaft (33) and a locking screw (34). The winding shaft (33) is connected to the upper end of the winding drum (10). The winding knob (32) is arranged at the lower end of the winding shaft (33). The locking screw (34) is threadedly penetrated through the lower wall of the mounting seat (1), and the locking screw (34) corresponds to the lower end of the winding drum (10).

3. The ground wire connector according to claim 2, wherein: The outer wall of the protective housing (2) is symmetrically provided with wire grooves (35), and the wire grooves (35) are aligned with the inner side of the notch (13).

4. The ground wire connector according to claim 3, characterized in that: The mounting seat (1) and the protective housing (2) are fixed by bolts (36).

5. The ground wire connector according to claim 4, characterized in that: The lower wall of the mounting seat (1) is symmetrically provided with mounting legs (37) in pairs.

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