A grounding device for substation installation and commissioning

Abstract

The present invention belongs to the technical field of grounding equipment, and specifically discloses a grounding device for installation and commissioning of a substation, including a chassis and a movable wheel at its lower part, the upper wall of the chassis is symmetrically provided with a lifting hydraulic rod, the movable end of the lifting hydraulic rod is provided with a lifting adjustment component, the lifting adjustment component is symmetrically provided with a wire fixing component, the middle part of the lifting adjustment component is provided with a reliable connection component, and the reliable connection component is provided with a grounding component. The present invention fixes a section of the maintenance wire through a symmetrical fixing clamp, and the connecting hook can always reliably contact the maintenance wire, which solves the problem that after the grounding wire is connected to the maintenance wire, the maintenance wire is torn by external force or the maintenance wire and the grounding wire are loosened.

Description

Technical Field

[0001] The invention belongs to the technical field of grounding equipment, and specifically refers to a grounding device for installation and commissioning of a transformer substation. Background Art

[0002] When inspecting and repairing electrical equipment in a substation, it is usually necessary to do so while the equipment is powered off. To ensure the personal safety of the maintenance personnel, it is also necessary to ground the wires at both ends of the electrical equipment through a grounding wire to prevent sudden power outages from endangering the lives of the maintenance personnel during the maintenance process. Therefore, the grounding wire is also known as the "lifeline" of maintenance personnel in the industry. Therefore, grounding the wires at both ends of the equipment is a must before inspecting and repairing the electrical equipment.

[0003] Commonly used wire grounding devices generally consist of an insulating operating rod, a clamping joint vertically fixed on the upper end of the insulating operating rod, and a grounding wire fixedly connected and electrically connected to the clamping joint. When the conductor of the substation electrical equipment is grounded, the maintenance personnel hold the insulating operating rod by hand, hook the clamping joint with the maintenance wire, and then tighten the clamping joint by rotating the operating rod. The above operation is cumbersome, and both connection and disassembly need to be done manually by the staff, which is less safe. After the grounding wire and the maintenance wire are connected, when the maintenance wire or the grounding wire receives external force, the maintenance wire is easily torn, and the clamping joint is easy to fall off from the maintenance wire, thereby causing safety accidents.

[0004] Therefore, a grounding device for substation installation and commissioning is needed to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a grounding device for substation installation and commissioning, which fixes a section of the maintenance wire through symmetrical fixing clamps, and the connecting hook can always be reliably in contact with the maintenance wire, thereby solving the problem that after the grounding wire is connected to the maintenance wire, the maintenance wire may be torn by external force or the maintenance wire and the grounding wire may be loosened.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a grounding device for substation installation and commissioning, including a chassis and a movable wheel at its lower part, the upper wall of the chassis is symmetrically provided with a lifting hydraulic rod, the movable end of the lifting hydraulic rod is provided with a lifting adjustment component, the lifting adjustment component is symmetrically provided with a wire fixing component, the middle part of the lifting adjustment component is provided with a reliable connection component, and the reliable connection component is provided with a grounding component.

[0007] Furthermore, the lifting and adjusting component includes an adjusting hydraulic rod, a connecting cross bar and a linkage frame, the lower wall of the linkage frame is arranged at the upper ends of the two lifting hydraulic rods, the adjusting hydraulic rod is arranged at the lower wall of the linkage frame, the movable end of the adjusting hydraulic rod passes through the lower wall of the linkage frame, and the middle part of the connecting cross bar is arranged at the upper end of the adjusting hydraulic rod.

[0008] Furthermore, the wire fixing assembly includes a lifting rod, a transmission rack, a fixing frame, a linkage shaft, a transmission gear, a guide plate, a guide foot, a fixing clamp and an elastic rubber body. The movable end of the lifting hydraulic rod is tubular, the lifting rod is slidably arranged in the movable end of the lifting hydraulic rod, the lifting rod passes through the upper wall of the linkage frame, the lifting rod is arranged at the end of the connecting cross bar, the transmission rack is symmetrically arranged on the outer side wall of the lifting rod, the transmission rack passes through the upper wall of the linkage frame, the fixing frame is symmetrically arranged on both sides of the upper wall of the linkage frame, and the linkage shaft is arranged inside the fixing frame. The transmission gear is arranged on the linkage shaft between the side walls, the transmission gear is meshed with the transmission rack, one end of the fixed splint is arranged on the linkage shaft, the fixed splint is arranged on both sides of the transmission gear, the guide plate is arranged on the upper end of the lifting rod, and the side walls at both ends of the guide plate are symmetrically provided with guide feet, the edge of the inner side wall of the fixed splint is provided with a side groove, the middle part of the inner side wall of the fixed splint is provided with a clamping guide groove, the clamping guide groove is connected together, and a placement groove is provided on the inner side of the end of the fixed splint, and an elastic rubber body is provided in the placement groove.

[0009] Furthermore, the reliable connection component includes a baffle, a control spring, a connecting vertical pipe, an insulating sleeve and a connecting hook, the connecting vertical pipe is penetrated through the upper wall of the linkage frame, the baffle is arranged at the lower end of the connecting vertical pipe, the control spring is sleeved on the connecting vertical pipe, the upper end of the control spring is arranged on the inner upper wall of the linkage frame, the lower end of the control spring is arranged on the upper wall of the baffle, the insulating sleeve is arranged at the upper end of the connecting vertical pipe, and the connecting hook is arranged at the upper end of the insulating sleeve.

[0010] Furthermore, the grounding assembly includes a grounding wire and a fixed wire clamp, the grounding wire passes through the connecting vertical pipe and the insulating sleeve, one end of the grounding wire is connected to the connecting hook, and the fixed wire clamp is arranged at the end of the grounding wire.

[0011] Furthermore, when the two fixing clamps are butt-jointed together, the clamping guide groove is aligned with the guide foot.

[0012] Furthermore, when the two fixing clamps are butted together and the transmission rack is just disengaged from the transmission gear, the height of the connecting hook is greater than the height of the elastic rubber body.

[0013] Furthermore, when the two fixing clamps are butted together and the transmission rack is just disengaged from the transmission gear, the connecting cross bar holds the baffle upwards, and the baffle compresses the control spring upwards.

[0014] Furthermore, a vacuum suction cup is provided on the lower wall of the chassis.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows:

[0016] 1. When the lifting rod moves upward, the transmission rack and the transmission gear mesh to control the rotation of the linkage shaft. At this time, the guide foot enters the side groove, and the two fixed splints are not restricted. The fixed splints are in an open state. Then the lifting rod is controlled in the reverse direction, and the fixed splints are closed. The elastic rubber body is used to fix a section of the maintenance wire. This section of the maintenance wire can withstand a large connection force because it ensures the reliable connection between the ground wire and the maintenance wire.

[0017] 2. Under the action of the control spring, the baffle continues to move downward, the baffle drives the connecting vertical pipe to move downward, the connecting vertical pipe drives the insulating tube and the connecting hook to move downward, the connecting hook acts on the maintenance wire, and under the elastic force of the control spring, the connecting hook and the maintenance wire maintain a reliable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a grounding device for substation installation and commissioning proposed by the present invention;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 is a schematic diagram of the three-dimensional structure of the wire fixing assembly;

[0021] Figure 4 A schematic diagram of a three-dimensional structure for reliably connecting components;

[0022] Figure 5 for Figure 3 Enlarged view of part A;

[0023] Figure 6 for Figure 3 Enlarged view of part B;

[0024] Figure 7 is a schematic diagram of the three-dimensional structure of the fixed splint;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide plate and the guide foot.

[0026] Among them, 1. chassis, 2. moving wheel, 3. lifting hydraulic rod, 4. lifting adjustment component, 5. wire fixing component, 6. reliable connection component, 7. grounding component, 8. adjusting hydraulic rod, 9. connecting cross bar, 10. linkage frame, 11. lifting rod, 12. transmission rack, 13. fixing frame, 14. linkage shaft, 15. transmission gear, 16. guide plate, 17. guide foot, 18. fixed splint, 19. elastic rubber body, 20. side groove, 21. clamping guide groove, 22. placement groove, 23. baffle, 24. control spring, 25. connecting vertical pipe, 26. insulating sleeve, 27. connecting hook, 28. grounding wire, 29. fixed wire clamp, 30. vacuum suction cup.

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] like Figure 1 As shown, the present invention proposes a grounding device for substation installation and commissioning, including a chassis 1 and a movable wheel 2 at its lower part, wherein the upper wall of the chassis 1 is symmetrically provided with a lifting hydraulic rod 3, the movable end of the lifting hydraulic rod 3 is provided with a lifting adjustment component 4, the lifting adjustment component 4 is symmetrically provided with a wire fixing component 5, the middle part of the lifting adjustment component 4 is provided with a reliable connection component 6, and the reliable connection component 6 is provided with a grounding component 7.

[0031] like Figure 1 , Figure 2As shown, the lifting and adjusting component 4 includes an adjusting hydraulic rod 8, a connecting cross bar 9 and a linkage frame 10. The lower wall of the linkage frame 10 is arranged at the upper ends of the two lifting hydraulic rods 3, the adjusting hydraulic rod 8 is arranged at the lower wall of the linkage frame 10, the movable end of the adjusting hydraulic rod 8 passes through the lower wall of the linkage frame 10, and the middle part of the connecting cross bar 9 is arranged at the upper end of the adjusting hydraulic rod 8.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the wire fixing assembly 5 includes a lifting rod 11, a transmission rack 12, a fixing frame 13, a linkage shaft 14, a transmission gear 15, a guide plate 16, a guide foot 17, a fixed clamping plate 18 and an elastic rubber body 19. The movable end of the lifting hydraulic rod 3 is tubular, and the lifting rod 11 is slidably arranged in the movable end of the lifting hydraulic rod 3. The lifting rod 11 passes through the upper wall of the linkage frame 10. The lifting rod 11 is arranged at the end of the connecting cross bar 9. The transmission rack 12 is symmetrically arranged on the outer side wall of the lifting rod 11, and the transmission rack 12 passes through the upper wall of the linkage frame 10. The fixing frame 13 is symmetrically arranged on both sides of the upper wall of the linkage frame 10. The linkage shaft 14 is arranged between the inner side walls of the fixing frame 13. The transmission gear 15 is arranged on the linkage shaft 14, and the transmission gear 15 meshes with the transmission rack 12. The fixing splint 18 is combined, one end of the fixing splint 18 is arranged on the linkage shaft 14, the fixing splint 18 is arranged on both sides of the transmission gear 15, the guide plate 16 is arranged on the upper end of the lifting rod 11, and the side walls of both ends of the guide plate 16 are symmetrically provided with guide feet 17, and the edge of the inner side wall of the fixing splint 18 is provided with a side groove 20, and the middle part of the inner side wall of the fixing splint 18 is provided with a clamping guide groove 21, and the clamping guide groove 21 is connected with the side groove 20 together. The inner side of the end of the fixing splint 18 is provided with a placement groove 22, and an elastic rubber body 19 is arranged in the placement groove 22. In the initial state, the two fixing splints 18 are butt-jointed together, the upper end of the transmission rack 12 is just disengaged from the transmission gear 15, and the guide foot 17 on the guide plate 16 is only at the connection between the clamping guide groove 21 and the side groove 20.

[0033] like Figure 1 , Figure 2 , Figure 4As shown, the reliable connection component 6 includes a baffle 23, a control spring 24, a connecting vertical pipe 25, an insulating sleeve 26 and a connecting hook 27. The connecting vertical pipe 25 is arranged through the upper wall of the linkage frame 10, the baffle 23 is arranged at the lower end of the connecting vertical pipe 25, the control spring 24 is sleeved on the connecting vertical pipe 25, the upper end of the control spring 24 is arranged on the inner upper wall of the linkage frame 10, the lower end of the control spring 24 is arranged on the upper wall of the baffle 23, the insulating sleeve 26 is arranged at the upper end of the connecting vertical pipe 25, and the connecting hook 27 is arranged at the upper end of the insulating sleeve 26.

[0034] like Figure 1 , Figure 2 As shown, the grounding assembly 7 includes a grounding wire 28 and a fixed wire clamp 29 . The grounding wire 28 passes through the vertical connecting pipe 25 and the insulating sleeve 26 . One end of the grounding wire 28 is connected to the connecting hook 27 . The fixed wire clamp 29 is arranged at the end of the grounding wire 28 .

[0035] like Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, when the two fixing clamping plates 18 are butt-jointed together, the clamping guide groove 21 is aligned with the guide foot 17 .

[0036] like Figure 2 , Figure 3 , Figure 5 As shown, when the two fixing clamps 18 are butted together and the transmission rack 12 is just disengaged from the transmission gear 15 , the height of the connecting hook 27 is greater than the height of the elastic rubber body 19 .

[0037] like Figure 2 , Figure 3 , Figure 5 As shown, when the two fixing clamps 18 are butted together and the transmission rack 12 is just disengaged from the transmission gear 15 , the connecting cross bar 9 holds the baffle plate 23 upward, and the baffle plate 23 compresses the control spring 24 upward.

[0038] like Figure 1 As shown, a vacuum suction cup 30 is provided on the lower wall of the chassis 1 .

[0039] When in use, the equipment is moved to the bottom of the inspection wire, and then the hydraulic rod 8 is controlled to extend, and the hydraulic rod 8 is adjusted to push the connecting cross bar 9 upward, and the connecting cross bar 9 drives the lifting rod 11 to move upward, and the lifting rod 11 drives the transmission rack 12 to move upward, and the transmission rack 12 is meshed with the transmission gear 15, and the transmission gear 15 drives the linkage shaft 14 to rotate, and the linkage shaft 14 drives the fixed clamping plate 18 to rotate outward. At this time, the lifting rod 11 drives the guide plate 16 to move upward, and the guide plate 16 drives the guide foot 17 to move upward, and the guide foot 17 disengages from the clamping guide groove 21 and enters the side groove 20, so the guide foot 17 will not The fixed clamping plate 18 is limited, and the two fixed clamping plates 18 are in an open state. At the same time, the connecting cross bar 9 pushes the baffle plate 23 upward, the baffle plate 23 pushes the connecting vertical pipe 25 upward, and the connecting vertical pipe 25 pushes the insulating sleeve 26 and the connecting hook 27 upward, and then the lifting hydraulic rod 3 is adjusted to extend, and the lifting hydraulic rod 3 pushes the linkage frame 10 upward, thereby driving the fixed clamping plate 18 and the connecting hook 27 to move upward together, so that the maintenance wire is in the position of the elastic rubber body 19 between the opened fixed clamping plates 18. At this time, the connecting hook 27 passes over the maintenance wire, and the maintenance wire is on the hook-shaped side of the connecting hook 27, and then the hydraulic rod 8 is controlled to shorten. , adjust the hydraulic rod 8 to drive the connecting cross bar 9 to descend, the connecting cross bar 9 drives the lifting rod 11 to descend, the lifting rod 11 enters the movable end of the lifting hydraulic rod 3, the lifting rod 11 drives the transmission rack 12 to descend, the transmission rack 12 is meshed with the transmission gear 15, the transmission gear 15 drives the linkage shaft 14 to rotate, the linkage shaft 14 drives the fixed clamping plate 18 to rotate inward, the two fixed clamping plates 18 are closed, and the elastic rubber body 19 clamps the maintenance wire. At this time, the hook does not touch the maintenance wire, and then continue to control the hydraulic rod 8 to shorten, and adjust the hydraulic rod 8 to continue to drive the connecting cross bar 9 to descend. At this time, the upper end of the transmission rack 12 is in contact with the transmission The gear 15 disengages, and the transmission rack 12 no longer meshes with the transmission gear 15. At the same time, the guide foot 17 enters the clamping guide groove 21, thereby limiting the rotation of the fixed clamp 18. The two fixed clamps 18 are in a closed state, pressing and fixing the detection wire. At the same time, under the action of the control spring 24, the baffle 23 continues to move downward, and the baffle 23 drives the connecting vertical pipe 25 to move downward, and the connecting vertical pipe 25 drives the insulating tube and the connecting hook 27 to move downward. The connecting hook 27 acts on the maintenance wire, and then the fixing clip is fixed on the five-protection grounding lock, and finally the equipment is fixed to the ground using the vacuum suction cup 30.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A grounding device for installation and commissioning of a substation, comprising a chassis (1) and a moving wheel (2) at its lower portion, characterized in that: The upper wall of the chassis (1) is symmetrically provided with a lifting hydraulic rod (3), the movable end of the lifting hydraulic rod (3) is provided with a lifting adjustment component (4), the lifting adjustment component (4) is symmetrically provided with a wire fixing component (5), the middle part of the lifting adjustment component (4) is provided with a reliable connection component (6), and the reliable connection component (6) is provided with a grounding component (7); The lifting and adjusting component (4) comprises an adjusting hydraulic rod (8), a connecting cross bar (9) and a linkage frame (10); the lower wall of the linkage frame (10) is arranged at the upper ends of the two lifting hydraulic rods (3); the adjusting hydraulic rod (8) is arranged at the lower wall of the linkage frame (10); the movable end of the adjusting hydraulic rod (8) passes through the lower wall of the linkage frame (10); and the middle part of the connecting cross bar (9) is arranged at the upper end of the adjusting hydraulic rod (8); The wire fixing assembly (5) comprises a lifting rod (11), a transmission rack (12), a fixing frame (13), a linkage shaft (14), a transmission gear (15), a guide plate (16), a guide foot (17), a fixing clamp (18) and an elastic rubber body (19); the movable end of the lifting hydraulic rod (3) is tubular; the lifting rod (11) is slidably arranged in the movable end of the lifting hydraulic rod (3); the lifting rod (11) passes through the upper wall of the linkage frame (10); the lifting rod (11) is arranged at the end of the connecting cross bar (9); the transmission rack (12) is symmetrically arranged on the outer side wall of the lifting rod (11); the transmission rack (12) passes through the upper wall of the linkage frame (10); the fixing frame (13) is symmetrically arranged on both sides of the upper wall of the linkage frame (10); the linkage shaft (14) is arranged on the fixing frame (13); The transmission gear (15) is arranged on the linkage shaft (14) between the inner side walls, the transmission gear (15) is meshed with the transmission rack (12), one end of the fixed clamping plate (18) is arranged on the linkage shaft (14), the fixed clamping plate (18) is arranged on both sides of the transmission gear (15), the guide plate (16) is arranged on the upper end of the lifting rod (11), and the two end side walls of the guide plate (16) are symmetrically provided with guide feet (17), the edge of the inner side wall of the fixed clamping plate (18) is provided with a side groove (20), the middle part of the inner side wall of the fixed clamping plate (18) is provided with a clamping guide groove (21), and the clamping guide groove (21) is connected with the side groove (20), and the inner side of the end of the fixed clamping plate (18) is provided with a placement groove (22), and an elastic rubber body (19) is provided in the placement groove (22).

2. A grounding device for substation installation and commissioning according to claim 1, characterized in that: The reliable connection component (6) comprises a baffle (23), a control spring (24), a connecting vertical pipe (25), an insulating sleeve (26) and a connecting hook (27); the connecting vertical pipe (25) is arranged through the upper wall of the linkage frame (10); the baffle (23) is arranged at the lower end of the connecting vertical pipe (25); the control spring (24) is sleeved on the connecting vertical pipe (25); the upper end of the control spring (24) is arranged on the inner upper wall of the linkage frame (10); the lower end of the control spring (24) is arranged on the upper wall of the baffle (23); the insulating sleeve (26) is arranged at the upper end of the connecting vertical pipe (25); and the connecting hook (27) is arranged at the upper end of the insulating sleeve (26).

3. A grounding device for substation installation and commissioning according to claim 2, characterized in that: The grounding assembly (7) comprises a grounding wire (28) and a fixed wire clamp (29); the grounding wire (28) passes through the connecting vertical pipe (25) and the insulating sleeve (26); one end of the grounding wire (28) is connected to the connecting hook (27); and the fixed wire clamp (29) is arranged at the end of the grounding wire (28).

4. A grounding device for substation installation and commissioning according to claim 3, characterized in that: When the two fixing clamps (18) are butt-jointed together, the clamping guide groove (21) is aligned with the guide foot (17).

5. A grounding device for substation installation and commissioning according to claim 4, characterized in that: When the two fixing clamps (18) are butt-jointed together and the transmission rack (12) and the transmission gear (15) are just disengaged, the height of the connecting hook (27) is greater than the height of the elastic rubber body (19).

6. A grounding device for substation installation and commissioning according to claim 5, characterized in that: When the two fixing clamps (18) are butted together and the transmission rack (12) and the transmission gear (15) are just disengaged, the connecting cross bar (9) holds the baffle plate (23) upward, and the baffle plate (23) compresses the control spring (24) upward.

7. A grounding device for substation installation and commissioning according to claim 6, characterized in that: A vacuum suction cup (30) is provided on the lower wall of the base plate (1).

Images