Three-phase split type multi-group head grounding wire

Abstract

The invention discloses a three-phase split type multi-group head grounding wire, and relates to the field of equipment for power construction. The three-phase split-type multi-group-head grounding wire comprises an operating rod which comprises an operating head, and the top of the operating head is provided with a T-shaped clamping groove; the connecting plate is used for connecting a grounding wire; the connecting chuck comprises an operation end, and the operation end is connected with the T-shaped clamping groove in a clamped mode; the grounding wire comprises a main grounding wire and a branch grounding wire, and the main grounding wire and the branch grounding wire are connected through the connecting plate; and the grounding pin is inserted into the ground to realize grounding. Through modular design, specifically, the operating rod, the connecting chuck and the connecting plate are combined in a split mode, and the T-shaped clamping groove is in rapid butt joint, so that three-phase synchronous grounding operation is achieved, and the problems that most existing grounding wires are of a single-phase or fixed structure and cannot be rapidly matched with three-phase equipment, and installation steps are tedious can be solved; and the technical problems that the grounding wire cannot be quickly disassembled and assembled and the operation steps are simplified are solved.

Description

Technical Field

[0001] The present invention relates to the field of equipment for electric power construction, and particularly to a three-phase split multi-group head grounding wire. Background Art

[0002] In power maintenance and repair operations, the grounding wire is a crucial safety measure to protect workers from electric shock, and its importance is self-evident. According to the "Electric Power Safety Work Regulations" and the standardized operation process, quickly and accurately installing a short-circuit grounding wire after verifying the power is the primary step to ensure operation safety, aiming to provide a safe working environment for subsequent defect repair work. However, although the currently widely used short-circuit grounding wire clamps (including spiral type, duck tongue type, flat mouth type, impact type, etc.) meet the basic requirements in terms of function, they face a series of challenges in practical applications.

[0003] Firstly, these traditional grounding wire clamp heads are often designed as a group of three-phase integrally, fixedly connected to the insulating rod. This design is particularly cumbersome and inconvenient when facing limited installation locations, remote locations, or high-altitude operations, increasing the physical exertion and operation difficulty of workers. Especially when hanging and removing in a high-altitude environment, it not only takes time and effort but also increases the safety risk due to complex operations, which may lead to insecure clamping or accidental detachment, seriously threatening the lives of operating personnel.

[0004] Secondly, the traditional grounding wire operating rod usually consists of three insulating rods. When used in conjunction with a fixed clamp, due to the limited working space, it cannot rotate flexibly, further exacerbating the operation difficulty and prolonging the operation time. In addition, for the scenario where the grounding wire needs to be installed inside the distribution cabinet, the overly long insulating rod not only hinders the normal closing of the distribution box door but also interferes with the maintenance operations of the equipment inside the cabinet, constituting a potential safety hazard.

[0005] In view of the above problems, there is an urgent need for an innovative design of the grounding wire to optimize the hanging, collection, carrying, and operation processes, and ensure the safety and efficiency of the grounding wire installation process. Summary of the Invention

[0006] In view of this, the present application provides a three-phase split multi-group head grounding wire. The main purpose is to solve the technical problems of ensuring safety during the installation process of the grounding wire in the prior art through structural innovation, improving the operation efficiency of hanging, collecting, carrying, and operating the grounding wire, and ensuring the absolute safety of operating personnel.

[0007] According to a first aspect of the present invention, a three-phase split multi-group head ground wire is provided, including: an operating rod, including an operating head, and a T-shaped card slot is provided at the top of the operating head; a connecting plate for connecting the ground wire; a connecting chuck, including an operating end, and the operating end is clamped with the T-shaped card slot; the ground wire includes a main ground wire and branch ground wires, and the main ground wire and the branch ground wires are connected through the connecting plate; a ground pin for inserting into the ground to achieve grounding. Each component of the present invention can be quickly disassembled and assembled, which is convenient for transportation, maintenance and flexible on-site adjustment; it supports grounding of three-phase equipment at the same time, improves operation efficiency and reduces repeated operations. In addition, the present invention reduces the overall weight through a split structure, makes the operation more labor-saving, and reduces the risk of operation errors.

[0008] Further, the T-shaped card slot is arranged in the middle of the top of the operating head for vertically clamping the operating end of the connecting chuck. The vertical clamping method of the present application avoids lateral shaking and ensures reliable locking of the connecting chuck and the operating rod.

[0009] The connecting chuck further includes: a clamping rod, the clamping rod horizontally penetrates through the bottom of the operating end to form a T-shaped protrusion. When the operating end is vertically inserted into the T-shaped card slot, the T-shaped protrusion is embedded in the T-shaped card slot, so as to realize the connection between the connecting chuck and the operating rod. The precise matching of the T-shaped protrusion and the card slot simplifies the installation steps and can be quickly docked without complex tools.

[0010] Further, the operating rod further includes: an electroscope, and the electroscope is arranged below the operating head and is fixedly connected or integrally formed with the operating head. Before operation, the electroscope below the operating rod can directly detect whether the equipment is energized without additional tools. In addition, the electroscope is linked with the ground wire to ensure that the grounding operation is only carried out when the equipment is de-energized, significantly reducing the risk of electric shock.

[0011] Further, the connecting plate includes a connecting plate body, two groups of connecting end holes, and six groups of connecting holes, wherein: the connecting end holes are used for crimping one end of the main ground wire, and hand-tightening screws are arranged in the connecting holes for connecting each branch ground wire. In the present application, the number of branch ground wires can be increased or decreased according to on-site requirements to adapt to different-scale grounding scenarios. In addition, the hand-tightening screws are convenient for quickly disassembling and assembling the branch ground wires, reducing the maintenance time.

[0012] Further, the hand-tightening screws penetrate through the connecting holes and the terminals of each branch ground wire for crimping each branch ground wire on the connecting plate body. The tightening screws penetrate through the connecting holes and the branch ground wire terminals for direct crimping. In the present application, the hand-tightening screws provide continuous pressure to ensure the tight connection between the branch ground wire and the connecting plate, reducing the contact resistance; in addition, the hand-tightening screws avoid loosening caused by vibration in the traditional plugging method and are suitable for complex working conditions (such as outdoor or mobile scenarios).

[0013] Furthermore, the three-phase split-type multi-head grounding wire further includes: the connecting clamp head further includes a grounding port, and the grounding port is an elastic clip structure for connecting to the power-off equipment; There are three connecting clamp heads, and each connecting clamp head is detachably connected to the operating rod through the T-shaped card slot, and each connecting clamp head can independently control the opening and closing state.

[0014] Furthermore, a connection hole is provided at the upper end of the grounding needle for connecting the connecting plate through the wire nose of the main grounding wire; the other end of the grounding needle is pointed for inserting into the ground.

[0015] Furthermore, the branch grounding wire is made of multiple strands of soft copper wire, and the branch grounding wire includes: a first connection end, which is crimped with a wire nose and is fixedly connected to the connecting plate through the connection hole of the connecting plate and the embedded hand-tightening screw; A second connection end: crimped with a wire nose and is helically fixedly connected to the threaded hole of the connecting clamp head.

[0016] Furthermore, the three-phase split-type multi-head grounding wire further includes: a storage device; The storage device includes: a box body structure formed by buckling a box cover and a bottom plate to form a closed space; Cable fixing components: There are two turning nails, and the two turning nails are respectively vertically fixed on the inner side of the bottom plate for winding and fixing the main body of the grounding wire; Hanging nails: at least three, spaced apart and fixed on the bottom plate for hanging the connecting clamp head; It includes at least two straps, which are fixedly parallel to the inner surface of the bottom plate for bundling the branch grounding wire and the main grounding wire.

[0017] Furthermore, when the grounding wire and the connecting clamp head are stored in the storage device, the grounding wire is spirally wound around the turning nail, the hanging nail hangs the connecting clamp head, and the straps cross-bundle the grounding wire. Spiral winding reduces the bending stress of the cable, and cross-bundling avoids mutual friction between the branch grounding wire and the main grounding wire. The standardized storage method in this application makes the tools clear at a glance and shortens the on-site preparation time. Among them, the fixing components: turning nails / hanging nails prevent the cable from loosening and ensure the integrity after repeated storage.

[0018] A three-phase split-type multi-head grounding wire provided by the present invention. Through modular design (split-type combination of the operating rod, connecting clamp head, and connecting plate) and quick docking of the T-shaped card slot, the present application realizes three-phase synchronous grounding operation, and can solve the technical problems that existing grounding wires are mostly single-phase or fixed structures, cannot be quickly adapted to three-phase equipment, and have cumbersome installation steps; and cannot achieve quick disassembly and assembly.

[0019] The above description is only an overview of the technical solution of this application. In order to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the following specifically illustrates the specific embodiments of this application. Brief Description of the Drawings

[0020] The drawings described herein are used to provide a further understanding of the present invention and form a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings: Figure 1 The structural schematic diagram of a three-phase split multi-group head ground wire storage device provided by an embodiment of the present invention is shown; Figure 2 The partial structural schematic diagram of a three-phase split multi-group head ground wire storage device provided by an embodiment of the present invention is shown; Figure 3 The structural schematic diagram of an operating rod of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 4 The structural schematic diagram of a connecting clip head of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 5 The structural schematic diagram of a ground wire of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 6 Another structural schematic diagram of a connecting clip head of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 7 The structural schematic diagram of a connecting plate of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 8 The structural schematic diagram of a ground wire of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 9 Another structural schematic diagram of a connecting plate of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 10 The structural schematic diagram of a hand-tightening screw of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown; Figure 11 The structural schematic diagram of a ground needle of a three-phase split multi-group head ground wire provided by an embodiment of the present invention is shown.

[0021] Attached drawing reference numerals: 1, operating rod; 12, operating head; 13, electrical detector; 2, connecting plate; 21, connecting plate body; 22, connecting end hole; 23, connecting hole; 24, hand-tightening screw; 3, connecting chuck; 31, operating end; 32, clamping rod; 33, threaded hole; 34, grounding port; 4, grounding wire; 41, main grounding wire; 42, branch grounding wire; 5, grounding pin; 51, connecting hole; 6, storage device; 61, box cover; 62, bottom plate; 63, turning nail; 64, hanging nail; 65, strap. Detailed implementation mode

[0022] The present invention will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0023] Embodiment As Figures 1-11 shown, a three-phase split multi-group head grounding wire includes: an operating rod 1, including an operating head 12, and a T-shaped card slot is provided at the top of the operating head 12; a connecting plate 2 for connecting the grounding wire 4; a connecting chuck 3, including an operating end 31, and the operating end 31 is clamped with the T-shaped card slot; the grounding wire 4 includes a main grounding wire 41 and a branch grounding wire 42, and the main grounding wire 41 and the branch grounding wire 42 are connected through the connecting plate 2; a grounding pin 5 for inserting into the ground to achieve grounding. Each component of the present invention can be quickly disassembled and assembled, which is convenient for transportation, maintenance and flexible on-site adjustment; it supports grounding of three-phase equipment at the same time, improves operation efficiency and reduces repeated operations. In addition, the present invention reduces the overall weight through a split structure, makes the operation more labor-saving, and reduces the risk of operation errors.

[0024] In a feasible implementation mode, the T-shaped card slot is arranged in the middle of the top of the operating head 12 for vertically clamping the operating end 31 of the connecting chuck 3. The vertical clamping method of the present application avoids lateral shaking and ensures reliable locking of the connecting chuck and the operating rod. The connecting chuck 3 further includes: a clamping rod 32, and the clamping rod 32 horizontally penetrates through the bottom of the operating end 31 to form a T-shaped protrusion. When the operating end 31 is vertically inserted into the T-shaped card slot, the T-shaped protrusion is embedded in the T-shaped card slot, so as to realize the connection between the connecting chuck 3 and the operating rod 1. The precise matching of the T-shaped protrusion and the card slot simplifies the installation steps and can be quickly docked without complex tools.

[0025] In a feasible implementation, the operating rod 1 further includes: an electroscope 13, which is arranged below the operating head 12 and is fixedly connected or integrally formed with the operating head 12. Before the operation of this application, the electroscope below the operating rod can directly detect whether the equipment is energized without additional tools. In addition, the electroscope is linked with the grounding wire to ensure that the grounding operation is only carried out when the equipment is de-energized, significantly reducing the risk of electric shock. To prevent the grounding wire from being mistakenly hung on the energized equipment when hanging the grounding wire, in this implementation, the electroscope 13 has a built-in test sound button, and the test button should be pressed first before hanging the grounding wire to check the condition of the electroscope.

[0026] In this implementation, the operating rod 1 further includes a handheld part 13, which is located below the electroscope 13 and is the holding end for the operator. The handheld part 13 may be made of anti-slip and wear-resistant materials to enhance the stability and safety during holding and prevent slipping or getting out of control during the operation.

[0027] In a feasible implementation, the connecting plate 2 is the connection terminal for the main grounding wire 4 and the three branch grounding wires 42; specifically, the connecting plate 2 includes a connecting plate body 21, two groups of connecting end holes 22, and six groups of connecting holes 23, where: the connecting end holes 22 are used for crimping one end of the main grounding wire 41, and a hand-tightening screw 24 is provided in the connecting hole 23, which is used to connect each branch grounding wire 42. In this application, the number of branch grounding wires can be increased or decreased according to on-site requirements to adapt to grounding scenarios of different scales. In addition, the hand-tightening screw facilitates the quick disassembly and assembly of the branch grounding wires, reducing the maintenance time. As Figure 9 shown, the connecting plate 2 is made of copper plate and is in a fan shape.

[0028] In this implementation, the hand-tightening screw 24 penetrates the connecting hole 23 and the terminals of each branch grounding wire 42 to press each branch grounding wire 42 onto the connecting plate body 21. The tightening screw penetrates the connecting hole and the branch grounding wire terminal for direct crimping. In this application, the hand-tightening screw provides continuous pressure to ensure the tight connection between the branch grounding wire and the connecting plate, reducing the contact resistance; in addition, the hand-tightening screw avoids loosening caused by vibration in the traditional plugging method and is suitable for complex working conditions (such as outdoor or mobile scenarios).

[0029] In a feasible implementation, the three-phase split multi-group head grounding wire further includes: the connecting clamp 3 further includes a grounding port 34, which is an elastic clip structure for connecting to the de-energized equipment; there are three connecting clamps 3, and each connecting clamp 3 is detachably connected to the operating rod 1 through the T-shaped slot, and each connecting clamp 3 can independently control the opening and closing state. The connecting clamp 3 can be a double-tongue hook type adapted to the wire, a flat mouth pressing clamp adapted to the busbar, or a spiral clamping type adapted to the round object.

[0030] In a feasible implementation, a connection hole 51 is provided at the upper end of the grounding pin 5 for connecting to the connecting plate 2 through the wire nose of the main grounding wire 4; The other end of the grounding pin 5 is pointed for plugging into the ground.

[0031] In this implementation, the branch grounding wire 42 is made of multiple strands of soft copper wire, and the branch grounding wire 42 includes: a first connection end, which is crimped with a wire nose and fixedly connected to the connecting plate 2 through the connection hole 23 and the embedded hand-tightening screw 24 of the connecting plate 2; A second connection end: crimped with a wire nose and helically and fixedly connected to the threaded hole 33 of the connecting clip 3.

[0032] In a feasible implementation, the three-phase split multi-group head grounding wire further includes: a storage device 6; the storage device 6 includes: a box body structure formed by buckling a box cover 61 and a bottom plate 62 to form a closed space; A cable fixing component: two cramp pins 63, which are vertically fixed on the inner side of the bottom plate 62 respectively for winding and fixing the main body of the grounding wire 4; Hanging pins 64: at least three, spaced apart and fixed on the bottom plate 62 for hanging the connecting clip 3; A wire harness bundling component: including at least two straps 65, which are fixedly arranged in parallel on the inner surface of the bottom plate 62 for bundling the branch grounding wire 42 and the main grounding wire 41.

[0033] In this implementation, when the grounding wire 4 and the connecting clip 3 are stored in the storage device 6, the grounding wire 4 is spirally wound around the cramp pins 63, the hanging pins 64 hang the connecting clip 3, and the straps 65 cross-bundle the grounding wire 4. The spiral winding reduces the bending stress of the cable, and the cross-bundling avoids mutual friction between the branch grounding wire and the main grounding wire. The standardized storage method in this application makes the tools clear at a glance and shortens the on-site preparation time. Among them, the fixing components (cramp pins / hanging pins) prevent the cable from loosening and ensure the integrity after repeated storage.

[0034] In a feasible implementation, when storing the three-phase split multi-group head grounding wire, the split wire clip 3 is hung on the bottom plate 62, the grounding wire 4 is wound around the two cramp pins 63, the grounding wire 4 is tied well with the strap 65, the grounding pin 5 and the operating rod 1 are placed in the box body 6, and the box cover 61 is covered to complete the collection of the whole set of grounding wires. The assembly sequence is the opposite when in use.

[0035] When installing this set of three-phase split multi-group head single-pole operating grounding wires, first select the styles of the three connectors 3 according to the situation of the equipment to be grounded. Insert the grounding needle 5 into the ground and connect it to the main grounding wire 4 with screws. Connect the three branch grounding wires 42 to the connecting plate 2 with hand-tightening screws 24. The other ends of the three branch grounding wires 42 are respectively connected to the connecting clamp 3 with screws. Insert the operating end 31 of the connector 3 into the operating head 12 of the operating rod 1 and fasten it in the T-shaped card slot. Use the operating rod 1 to move the branch grounding wire connecting clamp 3 to the hanging point of each phase of the grounding wire respectively. Hang the grounding wire, rotate the hand-held part 13 of the operating rod to clamp the connection point, and rotate the operating rod 1 to separate the operating rod 1 from the wire clamp 3 along the T-shaped card slot. After the three-phase grounding wire is hung, remove the operating rod. When removing this three-phase split multi-group head single-pole operating grounding wire, the order is reversed. This three-phase split multi-group head single-pole operating grounding wire of the present application is applicable to places in the power system including but not limited to high-voltage transmission lines, substations, power plants, power construction, etc., to ensure the safety of maintenance, construction personnel and equipment.

[0036] The above serial numbers of the present application are only for description and do not represent the advantages or disadvantages of the implementation scenarios. The above-disclosed are only several specific implementation scenarios of the present application. However, the present application is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present application.

Claims

1. A three-phase split multi-group head grounding wire, characterized in that Comprising: A joystick (1), including an operating head (12), and a T-shaped card slot is provided at the top of the operating head (12); A connecting plate (2) for connecting a ground wire (4); A connecting chuck (3), including an operating end (31), and the operating end (31) is clamped with the T-shaped card slot; The ground wire (4) includes a main ground wire (41) and a branch ground wire (42), and the main ground wire (41) and the branch ground wire (42) are connected through the connecting plate (2); A ground pin (5) for inserting into the ground.

2. The three-phase split multi-group head ground wire according to claim 1, characterized in that The T-shaped card slot is arranged in the middle of the top of the operating head (12) for vertically clamping the operating end (31) of the connecting chuck (3); The connecting chuck (3) further includes: a clamping rod (32), and the clamping rod (32) horizontally penetrates the bottom of the operating end (31) to form a T-shaped protrusion. When the operating end (31) is vertically inserted downward into the T-shaped card slot, the T-shaped protrusion is embedded in the T-shaped card slot, thereby realizing the connection between the connecting chuck (3) and the joystick (1).

3. The three-phase split multi-group head ground wire according to claim 2, characterized in that The joystick (1) further includes: an electroscope (13), and the electroscope (13) is arranged below the operating head (12) and is fixedly connected or integrally formed with the operating head (12).

4. The three-phase split multi-group head ground wire according to claim 3, characterized in that The connecting plate (2) includes a connecting plate body (21), two groups of connecting end holes (22), and six groups of connecting holes (23), wherein: The connecting end holes (22) are used for crimping one end of the main ground wire (41), and a hand-tightening screw (24) is arranged in the connecting hole (23) for connecting each branch ground wire (42).

5. The three-phase split multi-group head ground wire according to claim 4, characterized in that The hand-tightening screw (24) penetrates through the connecting hole (23) and the terminals of each branch ground wire (42) for crimping each branch ground wire (42) on the connecting plate body (21).

6. The three-phase split multi-group head grounding wire according to claim 2, characterized in that, Further comprising: The connecting chuck (3) further includes a grounding port (34), and the grounding port (34) is an elastic clip structure for connecting with a de-energized device; There are three connecting chucks (3), and each connecting chuck (3) is detachably connected to the joystick (1) through the T-shaped card slot, and each connecting chuck (3) can independently control the opening and closing state.

7. The three-phase split multi-group head ground wire according to claim 6, characterized in that A connecting hole (51) is provided at the upper end of the ground pin (5) for connecting the connecting plate (2) through a wire nose of the main ground wire (4); The other end of the ground pin (5) is pointed for inserting into the ground.

8. The three-phase split multi-group head ground wire according to claim 7, characterized in that The branch ground wire (42) is made of multiple strands of soft copper wire, and the branch ground wire (42) includes: a first connection end, which is crimped with a wire nose and is fixedly connected to the connection plate (2) through the connection hole (23) and the embedded hand-tightening screw (24) of the connection plate (2); A second connection end: crimped with a wire nose and is screwed and fixedly connected to the threaded hole (33) of the connection clamp (3).

9. The three-phase split multi-group head grounding wire according to any one of claims 1-8, characterized in that, It further includes: A storage device (6); The storage device (6) includes: a box body structure formed by buckling a box cover (61) and a bottom plate (62) to form a sealed space; A cable fixing component: two turning nails (63), and the two turning nails (63) are respectively vertically fixed on the inner side of the bottom plate (62) for winding and fixing the main body of the ground wire (4); At least three hanging nails (64) are provided and are spaced apart and fixed on the bottom plate (62) for hanging the connection clamp (3); At least two straps (65) are fixedly parallel to the inner surface of the bottom plate (62) for bundling the branch ground wire (42) and the main ground wire (41).

10. The three-phase split multi-group head ground wire according to claim 9, wherein When the ground wire (4) and the connection clamp (3) are stored in the storage device (6), the ground wire (4) is spirally wound around the turning nail (63), the hanging nail (64) hangs the connection clamp (3), and the strap (65) cross-bundles the ground wire (4).

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