Multi-redundancy connection assembly of electrical equipment grounding system

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a multi-redundancy connecting assembly of an electrical equipment grounding system, which comprises an electrical equipment grounding plate, a grounding end arranged on the surface of the electrical equipment grounding plate, a metal column arranged at the top of the grounding end, a grounding wire connected with the metal column, and a metal sheet arranged at the end of the grounding wire. A fixing piece used for positioning the metal sheet is arranged on the surface of the electrical equipment grounding plate and comprises a U-shaped fixing plate, a pull rod penetrates through the top of the U-shaped fixing plate, a round pressing block is arranged at the bottom end of the pull rod, the outer wall of the pull rod is sleeved with a spring, and a fastener used for pressing a grounding wire is arranged on the outer side of the U-shaped fixing plate. According to the multi-redundancy connecting assembly for the grounding system of the electrical equipment, through the dual redundancy design of the fixing piece and the fastening piece, the grounding wire is effectively prevented from being separated due to external force pulling or vibration, the problem that traditional single bolt connection is prone to loosening is solved, and potential safety hazards such as electric shock and fire disasters are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a multi-redundant connection component for electrical equipment grounding systems. Background Technology

[0002] Electrical equipment refers to devices used to generate, transmit, distribute, or use electrical energy, including generators, transformers, distribution cabinets, switches, sockets, and various electrical appliances. These devices are widely used in modern society in industry, commerce, and households, providing convenience for people's daily lives and production activities. However, with the widespread use of electrical equipment, its safety issues have become increasingly prominent, especially regarding safety hazards such as electric shock and fire. Ensuring the safe operation of electrical equipment is therefore of paramount importance.

[0003] To ensure the safety and reliability of electrical equipment, grounding systems are widely used. The main function of a grounding system is to effectively connect the metal casing or other conductive parts of electrical equipment to the ground through a conductor, forming a low-impedance path to prevent accidents such as electric shock, fire, and equipment damage caused by leakage or short circuits. A good grounding system not only protects the safety of equipment and operators but also reduces the impact of electromagnetic interference on the normal operation of equipment.

[0004] Existing electrical equipment grounding systems typically include a grounding rod buried in the ground, a grounding wire (used to connect the grounding terminal of the electrical equipment to the grounding rod), and a grounding terminal on the electrical equipment. The grounding wire is usually connected to the grounding terminal of the electrical equipment via bolts. The connection method involves a perforated metal plate at one end of the grounding wire; the bolt passes through the hole in the metal plate and is threaded into the grounding terminal of the electrical equipment, thus pressing the metal plate tightly against the grounding terminal. However, this connection method has some problems: the grounding wire may separate from the metal plate under tension, or the metal plate may become poorly contacted with the grounding terminal due to loose bolts. These problems may lead to grounding system failure, thus failing to effectively protect the safety of equipment and personnel, and increasing potential safety hazards. Therefore, there is an urgent need for a multi-redundant connection component for electrical equipment grounding systems to improve the reliability and safety of the grounding system and ensure that electrical equipment can operate safely and stably in various environments. Utility Model Content

[0005] The purpose of this invention is to provide a multi-redundant connection component for grounding systems of electrical equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-redundant connection component for grounding system of electrical equipment includes an electrical equipment grounding plate, which is part of the electrical equipment. The surface of the electrical equipment grounding plate is provided with a grounding terminal, which serves as the core node for conductive connection. The top of the grounding terminal is provided with a metal post, and the metal post is connected to a grounding wire to carry current. The end of the grounding wire is provided with a metal plate for connecting to the grounding terminal. The bottom of the metal plate is provided with a mounting hole for the metal post to pass through.

[0008] The surface of the electrical equipment grounding plate is provided with a fixing component for positioning a metal sheet. The fixing component includes a U-shaped fixing plate, and a pull rod is provided through the middle of the top of the U-shaped fixing plate. A circular pressure block is provided at the bottom end of the pull rod for pressing the metal sheet. By pulling the circular pressure block upward by the pull rod, the circular pressure block can be separated from the metal post, so that the metal sheet can be moved upward and removed from the metal post to facilitate the installation and removal of the grounding wire. The grounding wire will not separate from the grounding end without human intervention. The bottom of the circular pressure block has a clearance groove for avoiding the metal post. A spring is sleeved on the outer wall of the pull rod to provide elastic pressure and ensure automatic reset and pressing.

[0009] The outer side of the U-shaped fixing plate is provided with fasteners for pressing the grounding wire. The fasteners are used to fix the position of the grounding wire, redundantly fix the grounding wire, and prevent the grounding wire from separating from the metal plate when under force. The fasteners include two side plates arranged symmetrically on the left and right. A bidirectional screw is rotatably connected between the two side plates and near the front end. The bidirectional screw drives two moving blocks to move synchronously relative to each other or in opposite directions. The outer wall of the bidirectional screw is threaded with two moving blocks. The bottom of each of the two moving blocks is provided with a connecting plate. The opposite sides of the two connecting plates are provided with pressing blocks. The moving blocks drive the pressing blocks through the connecting plates. The two pressing blocks press the grounding wire to fix its position.

[0010] Preferably, the bottom of both sides of the U-shaped fixing plate is provided with welding seats, which are welded to the surface of the electrical equipment ground plate to fix the position of the U-shaped fixing plate.

[0011] Preferably, the top of the lever is provided with a pull ring, which makes it easy for the user to pull the lever upward.

[0012] Preferably, the top of the metal sheet abuts against the bottom of the circular pressure block, and the bottom of the metal sheet abuts against the top of the grounding terminal, so that the relative position of the metal sheet and the grounding terminal is fixed, ensuring the stability of the grounding system.

[0013] Preferably, the top end of the spring abuts against the top of the inner wall of the U-shaped fixing plate, and the bottom end of the spring abuts against the top of the circular pressure block.

[0014] Preferably, the opposite sides of the two side plates are fixedly connected to the left and right sides of the U-shaped fixed plate, respectively. A driving component is provided on the right side of the right side plate. The driving component includes a rectangular box fixedly connected to the side of the side plate. A worm gear is rotatably connected between the left and right sides of the inner wall of the rectangular box. The left end of the worm gear shaft is coaxially connected to the right end of the bidirectional lead screw. The worm gear drives the bidirectional lead screw to rotate, so that the bidirectional lead screw drives the two moving blocks to move synchronously.

[0015] Preferably, a worm gear that meshes with a worm wheel is rotatably connected between the front and rear sides of the inner wall of the rectangular box. The front end of the worm gear shaft passes through the inner wall of the rectangular box and is fixedly connected to a cross-shaped countersunk knob. The user rotates the cross-shaped countersunk knob with a Phillips screwdriver, which drives the worm gear to rotate, causing the worm gear to drive the worm wheel to rotate. Since the worm wheel and worm gear have a self-locking function, the self-rotation of the bidirectional lead screw is effectively prevented.

[0016] Preferably, V-shaped grooves are provided on the opposite sides of the two clamping blocks, and rubber pads are provided on the concave surfaces of the V-shaped grooves. The sides of the rubber pads abut against the outer wall of the grounding wire to increase friction and improve the stability of the grounding wire.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The grounding system of this electrical equipment features a multi-redundant connection component. Through the dual redundancy design of the fixing parts and fasteners, it effectively prevents the grounding wire from coming loose due to external pulling or vibration, solving the problem of easy loosening of traditional single bolt connections and greatly reducing safety hazards such as electric shock and fire.

[0019] 2. The grounding system of this electrical equipment has multiple redundant connection components. The fasteners adopt a worm gear drive to drive a two-way screw. The self-locking characteristic prevents the clamping block from loosening due to vibration or external force, ensuring that the grounding wire is firmly clamped for a long time. At the same time, the V-shaped groove and rubber pad design of the clamping block can adapt to grounding wires of different diameters, increasing friction while avoiding damage to the surface of the conductor, thus balancing stability and protection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a partial structural schematic diagram of the present invention;

[0022] Figure 3 This is a partial structural diagram of the fastener in this utility model;

[0023] Figure 4 This is a schematic diagram of the fastener structure in this utility model;

[0024] In the diagram: 1. Electrical equipment grounding plate; 2. Grounding terminal; 20. Metal post; 3. Fixing component; 30. U-shaped fixing plate; 31. Pull rod; 32. Circular pressure block; 320. Clearance groove; 33. Spring; 34. Pull ring; 35. Welding seat; 4. Grounding wire; 40. Metal sheet; 400. Mounting hole; 5. Fastener; 50. Side plate; 51. Two-way lead screw; 52. Moving block; 53. Connecting plate; 54. Clamping block; 540. V-shaped clamping groove; 55. Rubber pad; 56. Driving component; 560. Rectangular box; 561. Worm gear; 562. Worm; 563. Cross-shaped countersunk knob. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figures 1-4 This utility model provides a technical solution:

[0028] The grounding system of electrical equipment includes a grounding plate 1, which is part of the electrical equipment. The surface of the grounding plate 1 is provided with a grounding terminal 2, which serves as the core node for conductive connection. The top of the grounding terminal 2 is provided with a metal post 20, which is connected to a grounding wire 4 and undertakes the function of current conduction. The end of the grounding wire 4 is provided with a metal plate 40 for connecting to the grounding terminal 2. The bottom of the metal plate 40 is provided with a mounting hole 400 for the metal post 20 to pass through.

[0029] The surface of the electrical equipment grounding plate 1 is provided with a fixing member 3 for positioning the metal piece 40. The fixing member 3 includes a U-shaped fixing plate 30. A pull rod 31 is provided through the middle of the top of the U-shaped fixing plate 30. A circular pressure block 32 is provided at the bottom of the pull rod 31 for pressing the metal piece 40. By pulling the circular pressure block 32 upward by the pull rod 31, the circular pressure block 32 can be separated from the metal post 20, so that the metal piece 40 can be moved upward and removed from the metal post 20, so as to facilitate the installation and removal of the grounding wire 4. The grounding wire 4 will not separate from the grounding end 2 without human intervention. The bottom of the circular pressure block 32 is provided with a relief groove 320 for avoiding the metal post 20. A spring 33 is sleeved on the outer wall of the pull rod 31 to provide elastic pressure and ensure automatic reset and pressing.

[0030] The outer side of the U-shaped fixing plate 30 is provided with a fastener 5 for pressing the grounding wire 4. The fastener 5 is used to fix the position of the grounding wire 4, redundantly fix the grounding wire 4, and prevent the grounding wire 4 from separating from the metal plate 40 when under force. The fastener 5 includes two side plates 50 arranged symmetrically on the left and right. A bidirectional screw 51 is rotatably connected between the two side plates 50 and near the front end. The bidirectional screw 51 drives two moving blocks 52 to move synchronously relative to each other or in opposite directions. The outer wall of the bidirectional screw 51 is threaded with two moving blocks 52. The bottom of each moving block 52 is provided with a connecting plate 53. The opposite sides of the two connecting plates 53 are provided with pressing blocks 54. The moving blocks 52 drive the pressing blocks 54 through the connecting plates 53. The two pressing blocks 54 press the grounding wire 4 to fix the position of the grounding wire 4.

[0031] In this embodiment, welding seats 35 are provided at the bottom of both the left and right sides of the U-shaped fixing plate 30. The welding seats 35 are welded to the surface of the electrical equipment grounding plate 1 to fix the position of the U-shaped fixing plate 30.

[0032] Specifically, the top of the lever 31 is provided with a pull ring 34, which makes it easy for the user to pull the lever 31 upward.

[0033] Furthermore, the top of the metal sheet 40 abuts against the bottom of the circular pressure block 32, and the bottom of the metal sheet 40 abuts against the top of the grounding terminal 2, thereby fixing the relative position of the metal sheet 40 and the grounding terminal 2 and ensuring the stability of the grounding system.

[0034] Furthermore, the top end of the spring 33 abuts against the top of the inner wall of the U-shaped fixing plate 30, and the bottom end of the spring 33 abuts against the top of the circular pressure block 32.

[0035] Furthermore, the opposite sides of the two side plates 50 are respectively fixedly connected to the left and right sides of the U-shaped fixed plate 30. The right side of the right side plate 50 is provided with a driving component 56. The driving component 56 includes a rectangular box 560 fixedly connected to the side of the side plate 50. A worm gear 561 is rotatably connected between the left and right sides of the inner wall of the rectangular box 560. The left end of the worm gear 561 shaft is coaxially connected to the right end of the bidirectional lead screw 51. The worm gear 561 drives the bidirectional lead screw 51 to rotate, so that the bidirectional lead screw 51 drives the two moving blocks 52 to move synchronously.

[0036] Furthermore, a worm 562, which meshes with a worm gear 561, is rotatably connected between the front and rear sides of the inner wall of the rectangular box 560. The front end of the worm 562's shaft passes through the inner wall of the rectangular box 560 and is fixedly connected to a cross-shaped countersunk knob 563. The user rotates the cross-shaped countersunk knob 563 with a Phillips screwdriver, which drives the worm 562 to rotate, causing the worm 562 to drive the worm gear 561 to rotate. Since the worm gear 561 and the worm 562 have a self-locking function, the self-rotation of the bidirectional lead screw 51 is effectively prevented.

[0037] Furthermore, V-shaped grooves 540 are provided on the opposite sides of the two clamping blocks 54, and rubber pads 55 are provided on the concave surface of the V-shaped grooves 540. The side of the rubber pads 55 abuts against the outer wall of the grounding wire 4 to increase friction and improve the stability of the grounding wire 4.

[0038] In this embodiment, when using the multiple redundant connection assembly of the electrical equipment grounding system, the pull rod 31 in the operating fastener 3 is used to pull the circular pressure block 32 upward by lifting the pull ring 34 to overcome the elastic force of the spring 33, so that the clearance groove 320 at the bottom of the circular pressure block 32 is disengaged from the metal post 20. At this time, the metal piece 40 at the end of the grounding wire 4 is inserted into the metal post 20 through the mounting hole 400, and the metal piece 40 is pressed down so that its bottom is tightly attached to the top of the grounding end 2. Then, the pull ring 34 is released, and the spring 33 pushes the circular pressure block 32 to reset, pressing the metal piece 40. After that, the fastener 5 is operated: the Phillips head screwdriver is used to rotate the Phillips head countersunk knob 56 of the drive component 56. 3. The worm gear 562 drives the worm wheel 561 to rotate, and the worm wheel 561 drives the bidirectional lead screw 51 to rotate, causing the two moving blocks 52 on the bidirectional lead screw 51 to move synchronously towards the center. Through the connecting plate 53, the clamping block 54 moves. The V-shaped groove 540 of the clamping block 54 clamps the grounding wire 4 with the rubber pad 55, completing the redundant fixation. Finally, check the connection stability between the grounding wire 4 and the metal plate 40 to ensure that the spring 33 continuously presses the metal plate 40 and that the clamping block 54 is not loose. Disassembly is done in reverse: rotate the cross-shaped groove knob 563 to loosen the clamping block 54, and pull the pull ring 34 to release the clamping state of the circular pressure block 32, and then the grounding wire 4 can be removed.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-redundant connection assembly for an electrical equipment grounding system, comprising an electrical equipment grounding plate (1), wherein the surface of the electrical equipment grounding plate (1) is provided with a grounding terminal (2), characterized in that: The top of the grounding terminal (2) is provided with a metal post (20), the metal post (20) is connected to a grounding wire (4), the end of the grounding wire (4) is provided with a metal plate (40), the bottom of the metal plate (40) is provided with a mounting hole (400) for the metal post (20) to pass through, the surface of the electrical equipment grounding plate (1) is provided with a fixing member (3) for positioning the metal plate (40), the fixing member (3) includes a U-shaped fixing plate (30), a pull rod (31) is provided through the middle of the top of the U-shaped fixing plate (30), the bottom end of the pull rod (31) is provided with a circular pressure block (32), the bottom of the circular pressure block (32) is provided with a... A clearance groove (320) for avoiding the metal column (20), a spring (33) is sleeved on the outer wall of the pull rod (31), and a fastener (5) for pressing the grounding wire (4) is provided on the outer side of the U-shaped fixing plate (30). The fastener (5) includes two side plates (50) arranged symmetrically on the left and right. A bidirectional screw (51) is rotatably connected between the two side plates (50) and near the front end. Two moving blocks (52) are threadedly connected to the outer wall of the bidirectional screw (51). A connecting plate (53) is provided at the bottom of each of the two moving blocks (52), and a pressing block (54) is provided on the opposite side of each of the two connecting plates (53).

2. The multiple redundancy connection assembly for electrical equipment grounding system according to claim 1, characterized in that: The bottom of both sides of the U-shaped fixing plate (30) is provided with welding seats (35), and the welding seats (35) are welded to the surface of the electrical equipment grounding plate (1).

3. The multiple redundancy connection assembly for electrical equipment grounding system according to claim 1, characterized in that: The top of the pull rod (31) is provided with a pull ring (34).

4. The multiple redundancy connection assembly for electrical equipment grounding system according to claim 1, characterized in that: The top of the metal sheet (40) abuts against the bottom of the circular pressure block (32), and the bottom of the metal sheet (40) abuts against the top of the grounding terminal (2).

5. The multiple redundancy connection assembly for electrical equipment grounding system according to claim 1, characterized in that: The top end of the spring (33) abuts against the top of the inner wall of the U-shaped fixing plate (30), and the bottom end of the spring (33) abuts against the top of the circular pressure block (32).

6. The multiple redundancy connection assembly for electrical equipment grounding system according to claim 1, characterized in that: The two side plates (50) are fixedly connected to the left and right sides of the U-shaped fixing plate (30) respectively. A driving component (56) is provided on the right side of the right side plate (50). The driving component (56) includes a rectangular box (560) fixedly connected to the side of the side plate (50). A worm gear (561) is rotatably connected between the left and right sides of the inner wall of the rectangular box (560). The left end of the worm gear (561) shaft is coaxially connected to the right end of the bidirectional lead screw (51).

7. The multiple redundancy connection assembly for electrical equipment grounding system according to claim 6, characterized in that: The front and rear sides of the inner wall of the rectangular box (560) are rotatably connected to a worm gear (561) that meshes with the worm wheel (561). The front end of the worm gear (562) shaft passes through the inner wall of the rectangular box (560) and is fixedly connected to a cross-shaped groove knob (563).

8. The multiple redundancy connection assembly for electrical equipment grounding system according to claim 1, characterized in that: V-shaped grooves (540) are provided on the opposite sides of the two clamping blocks (54), and rubber pads (55) are provided on the concave surface of the V-shaped grooves (540). The side of the rubber pads (55) abuts against the outer wall of the grounding wire (4).

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