Protective short-circuit grounding wire
By improving the structure of the short-circuit grounding wire, including the design of the double-wire nose port, protective spring, and colored paint layer, the problems of unstable connection and applicability in the existing technology have been solved, achieving a safer and more stable grounding effect, adapting to different ground conditions, and improving operational efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-03-31
AI Technical Summary
Existing short-circuit grounding wire equipment has problems such as inconspicuous safety warning labels, easy deformation of grounding, difficulty in controlling hammering depth, unstable connection, and limited applicability, resulting in unsafe operation and low efficiency.
The design incorporates grounding steel rods, grounding rods, grounding wires, and grounding extension wires. It also features structural improvements such as double-wire nose ports, protective springs, grounding stakes, colored paint layers, and clamp-type fixing devices to enhance connection stability and safety, adapt to different ground conditions, and improve operational efficiency and safety.
It achieves stable connection, wide applicability and safety of grounding wire, reduces the risk of misoperation, improves work efficiency and service life, and ensures the safety of operators.
Smart Images
Figure CN224067906U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power safety technology and discloses a protective short-circuit grounding wire. Background Technology
[0002] In power systems, short-circuit grounding wires are an important tool for ensuring the safety of personnel and equipment. They can conduct residual charges or sudden electrical charges on equipment to the ground, bringing the equipment to a zero potential state, thereby preventing electric shock to workers and providing reliable safety protection for on-site personnel.
[0003] The commonly used short-circuit grounding device is a portable insulating rod, consisting of two parts: the insulating rod and the grounding electrode. While this type of insulating rod is widely used, several problems remain. These include: the lack of clearly visible safety warning labels, leading to operator contact with the grounding electrode without wearing insulating gloves; the use of φ16mm² round steel of varying lengths, causing deformation during hammering and making it difficult for workers to control the hammering depth; the hammering point of the original grounding electrode being the same diameter as the electrode itself, making it prone to slippage and injury during hammering; the wire lugs being vertically connected to the stakes, easily damaging the soft copper wire during hammering; the lack of fixation at the joint between the wire lugs and the soft copper wire, making the wire prone to breakage; the bolted connection of the wire lugs to the stakes without measures to prevent loosening; and the original grounding electrode only suitable for insertion into soft ground such as soil and sand, becoming unusable once the ground hardens. Utility Model Content
[0004] To address the existing problems, this utility model provides a protective short-circuit grounding wire. The device has a simple overall structure, comprehensive functions, is easy to process and install, and is safe and quick to use. It also provides strong protection and wear resistance for the correct use of the short-circuit grounding wire and for personnel and tools themselves.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A protective short-circuit grounding wire includes a grounding steel rod, a grounding rod, a grounding wire, and a grounding extension wire; the grounding steel rod includes a double-wire lug port and a protective spring; the double-wire lug port is a pair of parallel connected terminals with openings in the same direction, and the pair of terminals are respectively connected to the grounding wire and the grounding extension wire; the protective spring is sleeved at the connection between the terminal and the grounding wire or the grounding extension wire; one end of the grounding rod is connected to the grounding wire.
[0007] As a further improvement of this utility model, the grounding steel rod also includes a grounding stake head; the grounding stake head is flat, and at least two connecting holes are provided on the grounding stake head, the line connecting the connecting holes forms an angle of 45° with the grounding steel rod; the grounding stake head is connected to the grounding steel rod.
[0008] As a further improvement of this utility model, one end of the grounding steel rod is provided with a hammering end; the hammering end includes a hammering base, a protective baffle and a grounding pile head connection part in sequence along the axial direction of the grounding steel rod; the cross-section of the hammering base is larger than the cross-section of the grounding steel rod; the cross-section of the protective baffle is larger than the cross-section of the hammering base; the grounding pile head connection part is fixedly connected to the grounding pile head.
[0009] As a further improvement of this utility model, a colored paint layer is provided on the outer surface of the grounding pile head connection part, and the colored paint layer is marked with scales to show the distance from the end of the grounding steel rod that contacts the soil base; the colored paint layer and the grounding pile head are staggered.
[0010] As a further improvement of this utility model, it also includes a clamp-type fixing device; the clamp-type fixing device is connected to the grounding extension line.
[0011] As a further improvement of this utility model, the grounding rod includes a metal grounding rod hook and an insulating hanging rod in sequence; the metal grounding rod hook is provided with a grounding wire fixing device, and the grounding wire fixing device is connected to the grounding wire.
[0012] As a further improvement of this utility model, it also includes a grounding busbar; at least three grounding rods are provided; the grounding wire fixing device on each grounding rod is connected to the corresponding grounding wire, and multiple grounding wires are connected to a bundled grounding wire through a grounding busbar; the bundled grounding wire is connected to a wiring port of a double-nozzle port.
[0013] As a further improvement of this utility model, the metal grounding rod hook is provided with spring clamps.
[0014] As a further improvement of this utility model, a rubber grip is provided at one end of the grounding rod.
[0015] As a further improvement of this utility model, a warning label is provided on the grounding rod.
[0016] This utility model has the following beneficial effects:
[0017] This invention improves wiring efficiency by providing a dual-line nose port, facilitating simultaneous connection of the grounding wire and grounding extension wire. The protective spring prevents the connection between the wiring port and the wire from loosening or being damaged by external forces, enhancing the stability and safety of the connection. By connecting the grounding wire to both the grounding steel rod and the grounding extension wire, the short-circuit grounding wire achieves a safer and more widely applicable grounding function, adapting to grounding needs in different scenarios, such as hardened ground and areas with unstable connections, thereby improving the grounding effect.
[0018] Preferably, the design of the grounding stake head takes into account both its compatibility with the grounding steel rod and its ability to be more firmly inserted into the soil, thereby improving the stability and reliability of grounding. At the same time, the connection holes on the grounding stake head are arranged at a 45° angle to the grounding steel rod, which facilitates the connection of the grounding steel rod with other grounding equipment or wires, thereby improving the ability to prevent loosening.
[0019] Preferably, the design of the hammer end facilitates the insertion of the grounding steel rod into the soil, reducing the accuracy requirements of the hammer and improving work efficiency. At the same time, the hammer base and protective baffle enhance the stability and safety during hammering, protecting power workers and preventing the hammer from slipping and injuring personnel and equipment.
[0020] Preferably, the design of the colored paint layer makes the grounding stake connection more conspicuous, facilitating quick identification and operation in complex environments; at the same time, the colored paint layer also provides a certain degree of rust and corrosion protection, extending the service life of the grounding steel rod; the graduations on the colored paint layer make it easy for workers to identify the depth of the grounding steel rod inserted into the soil, reducing the measurement process of the insertion length; the colored paint layer and the grounding stake are staggered to avoid the colored paint layer reducing the conductivity of the connection stake, ensuring the conductivity of the connection stake.
[0021] Preferably, the design of the clamp-type fixing device enables the grounding extension line to be more firmly fixed in the required position, preventing it from falling off or being damaged due to external forces, thus improving the stability and safety of grounding; at the same time, the clamp-type fixing device can adapt to hardened ground or other scenarios where it is not suitable to use grounding steel rods to extend into the soil foundation.
[0022] Preferably, the metal grounding rod hook can firmly hook onto the input side of high-voltage lines or transformers and other power equipment, ensuring the stability of the hook connection during the use of short-circuit grounding wires, while the insulated hanging rod can prevent electric shock to operators during installation and disassembly, thus improving operational safety.
[0023] Preferably, at least three grounding rods are used, which can be applied to three-phase AC power transmission lines or the transmission side of three-phase AC power equipment; multiple grounding wires are connected to a bundled grounding wire through a grounding busbar. Using a grounding busbar can simplify the connection and wiring of grounding wires, making the entire grounding process safer, neater and more orderly; at the same time, the use of bundled grounding wires can improve the grounding effect.
[0024] Preferably, the spring-loaded claw design allows the metal grounding hook to grip the conductor more firmly, preventing it from falling off or loosening due to external forces, thus improving the stability and reliability of grounding.
[0025] Preferably, the rubber grip is connected to one end of the insulating rod for hand use, which can further increase the insulation of the insulating rod, prevent electric shock to the operator during installation and disassembly, and improve the safety of operation.
[0026] Preferably, the warning label is designed to remind operators of the usage methods and precautions for the grounding rod, preventing safety accidents caused by misoperation; at the same time, the warning label can also serve as an identifier and distinguisher, facilitating quick identification and operation of the grounding rod in complex environments. Attached Figure Description
[0027] The accompanying drawings described herein are for illustrative purposes only and do not limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings:
[0028] Figure 1 This is a schematic diagram of the short-circuit grounding wire of this utility model;
[0029] Figure 2 This is a schematic diagram of the grounding steel rod of this utility model;
[0030] Figure 3 This is a schematic diagram of the dual-line nose port of this utility model.
[0031] The components include: 1. Hammering end; 2. Paint layer; 3. Wire lug fixing bolt; 4. Protective spring; 5. Grounding extension wire; 6. Clamp-type fixing device; 7. Grounding steel rod; 8. Double wire lug port; 9. Bundled grounding wire; 10. Grounding wire; 11. Metal hanging hook; 12. Grounding wire fixing device; 13. Insulating hanging rod; 14. Warning label; 15. Rubber grip; 16. Grounding stake head; 17. Hammering base; 18. Protective baffle; 19. Grounding stake head connection part. Detailed Implementation
[0032] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0033] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0035] Example
[0036] like Figure 1 The protective short-circuit grounding wire shown includes a grounding steel rod 7, a grounding rod, a grounding wire 10, and a grounding extension wire 5; the grounding steel rod 7 includes a double-nozzle port 8 and a protective spring 4; the double-nozzle port 8 is a pair of parallel connected terminals with openings in the same direction, such as... Figure 3 As shown, a pair of terminals are connected side-by-side with their openings facing downwards, used to connect the grounding wire 10 and the grounding extension wire 5 respectively; the protective spring 4 is sleeved at the connection point between the terminal and the grounding wire 10 or the grounding extension wire 5; one end of the grounding rod is connected to the grounding wire 10. The grounding wire 10 is made of soft copper wire, and the lugs of the soft copper wire are fixed to the joint with a spring, making the soft copper wire less prone to breakage; the spring wrapping also reduces the possibility of wear and tear on the soft copper wire, extending its service life.
[0037] like Figure 1 As shown, the grounding steel rod 7 also includes a grounding head 16; the grounding head 16 is flat, and at least two connecting holes are provided on the grounding head 16. The line connecting the connecting holes forms a 45° angle with the grounding steel rod 7. The lug of the grounding wire 10 is connected to the grounding head 16 of the steel rod using a double-hole double-screw connection, and reliable measures are taken to prevent bolt loosening; the grounding head 16 is connected to the grounding steel rod 7. The grounding steel rod 7 is made of hexagonal steel with a cross-sectional area of 190 mm² and a total length of 900 mm.
[0038] like Figure 2 As shown, one end of the grounding steel rod 7 is provided with a hammer base 17; the hammer base 17 includes, in sequence along the axial direction of the grounding steel rod 7, a hammer base 17, a protective baffle 18, and a grounding pile head connection part 19; the cross-section of the hammer base 17 is larger than the cross-section of the grounding steel rod 7; the cross-section of the protective baffle 18 is larger than the cross-section of the hammer base 17; the grounding pile head connection part 19 is fixedly connected to the grounding pile head 16. The thinner end of the hammer base 17 is connected to the protective baffle 18, which is thicker than the hammer base 17 and the grounding steel rod 7, effectively preventing slippage of the hammer base 17 when the hammer is swung, so as to avoid accidental injury to equipment or personnel when the hammer falls.
[0039] like Figure 2As shown, a colored paint layer 2 is provided on the outer surface of the grounding stake connection part 19, and the colored paint layer 2 is marked with scales to show the distance from the end of the grounding steel rod 7 that contacts the soil base; the colored paint layer 2 and the grounding stake 16 are staggered to avoid reducing the conductivity of the grounding stake 16. The overall coverage length of the colored paint layer 2 is 250mm, and the paint is applied to the top 0.25 meters of the 0.9-meter-long hexagonal steel to remind workers that the paint surface is in contact with the soil and the insertion depth is greater than 0.6 meters. With the scales on the colored paint layer 2, the insertion depth of the grounding steel rod 7 into the ground is clear at a glance and is not easily deformed; the cross-section of the hammer base 17 is inverted triangular, thicker at the top and thinner at the bottom, which improves the accuracy of the hammer strike.
[0040] like Figure 1 As shown, the protective short-circuit grounding wire 10 of this embodiment also includes a clamp-type fixing device 6; the clamp-type fixing device 6 is connected to the grounding extension line 5, and the clamp-type fixing device 6 can be a three-layer clamp with bolt adjustment. When the bolt is rotated, the distance between the movable clamp and the fixed clamp decreases, forming a clamping force on the fixed object or site; and the bolt is connected to the grounding extension line 5, which can conduct current.
[0041] like Figure 1 As shown, the grounding rod includes a metal grounding rod hook and an insulating hanging rod 13 in sequence; a grounding wire fixing device 12 is provided on the metal grounding rod hook, which can be a connecting end that mates with the copper lug of the grounding wire 10 or a bolt hole that can be connected to the grounding wire 10; the grounding wire fixing device 12 is connected to the grounding wire 10.
[0042] like Figure 1 As shown, three grounding rods are provided; the grounding wire fixing device 12 on each grounding rod is connected to the corresponding grounding wire 10, and the multiple grounding wires 10 are connected to a bundled grounding wire 9 through a grounding wire busbar; the bundled grounding wire 9 is connected to a wiring port of the double-nozzle port 8. If the three grounding wires 10 of the three grounding rods are not bundled together at the rear end, they can easily entangle the operator during operation, which is especially dangerous when working at heights. The design of connecting multiple grounding wires 10 to a bundled grounding wire 9 through a grounding wire busbar simplifies the connection and wiring of the grounding wires 10, making the entire grounding process safer, neater, and more orderly; at the same time, the use of the bundled grounding wire 9 can improve the grounding effect.
[0043] like Figure 1 As shown, the metal grounding rod hook is equipped with spring clips, which enable the metal grounding rod hook to clamp the grounding wire 10 more firmly, preventing the metal grounding rod from falling off or loosening due to wind or vibration, thus improving the stability and reliability of grounding.
[0044] like Figure 1As shown, one end of the grounding rod is provided with a rubber grip 15, which helps to increase the stability of the grip; the rubber has insulating properties, which can further increase the insulation of the insulating rod, prevent electric shock to the operator during installation and disassembly, and improve the safety of operation.
[0045] like Figure 1 As shown, a warning label 14 is installed on the grounding rod, indicated by a black and white grid. The warning label 14 may read, "Insulating gloves must be worn before hanging, removing, or moving the grounding wire, and the human body must not touch the grounding wire." Using this warning label 14, workers are immediately reminded to wear insulating gloves and prevent the grounding wire 10 from getting tangled in their clothes during use.
[0046] The method of using the protective short-circuit grounding wire 10 of this utility model is as follows:
[0047] One end of the bundled grounding wire 9 and one end of the bundled grounding extension wire 5 are securely crimped to the double-nozzle port 8. After inserting the protective spring 4, the double-nozzle port 8 is placed parallel to the front and rear sides of the grounding pile head 16 and securely connected using the nozzle fixing bolt 3.
[0048] Select a suitable location to drive the grounding steel rod 7 into the grounding electrode. Use a hammer to strike the grounding electrode and the base 17 to drive the grounding steel rod 7 into the required depth. The value can be read from the scale on the paint layer 2. If the work point is a cement floor or hardened surface and the surrounding muddy ground is far away, the first grounding steel rod 7 can be driven into the cement floor at an appropriate location, and the second grounding steel rod 7 can be set up in the muddy ground at a far location. Then, the bundled grounding extension line 5 of the first grounding steel rod 7 and the clamp-type fixing device 6 can be used to tightly connect the second grounding steel rod 7.
[0049] Holding the insulated hanging pole 13, observe the warning label 14, check whether the personnel on the pole are wearing insulated gloves correctly, and after confirming that there are no errors, sort out the three grounding wires 10 at the rear end of the bundled grounding wire 9 and hand them to the personnel on the pole;
[0050] Once the personnel on the pole reach the work position, they lift the three insulated hanging poles 13 as a whole. Following the phase sequence of the three-phase circuit, they hold the rubber handles 15 and hook the metal hooks 11 of each insulated hanging pole 13 onto the grounding part of the corresponding conductor.
[0051] The above embodiments are merely one of the implementation methods for achieving the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to the embodiments described herein, but also includes any variations, substitutions, and other implementation methods that are readily conceived by those skilled in the art within the scope of the technology disclosed in this utility model. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various variations, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A guarded short circuit ground line, characterized in that It includes ground steel drill (7), ground rod, ground wire (10) and ground extension line (5); the ground steel drill (7) includes double-line nose port (8) and protection spring (4); the double-line nose port (8) is a pair of parallel connection and opening homodirectional wiring port, a pair of wiring port is connected ground wire (10) and ground extension line (5) respectively; the protection spring (4) is set between the connection of wiring port and ground wire (10) or ground extension line (5); one end of the ground rod is connected with ground wire (10).
2. A guarded short circuit ground cord according to claim 1, wherein, The ground steel drill (7) further includes ground pile head (16); the ground pile head (16) is flat, at least two connecting holes are provided on the ground pile head (16), and the connecting line of the connecting hole is at an angle of 45° with the ground steel drill (7); the ground pile head (16) is connected to the ground steel drill (7).
3. A guarded short circuit ground wire according to claim 2, characterized in that One end of the ground steel drill (7) is provided with hammering base (17); the hammering base (17) includes hammering base (17), protective baffle (18) and ground pile head (16) connecting part along the axial direction of the ground steel drill (7) in sequence; the cross section of the hammering base (17) is larger than the cross section of the ground steel drill (7); the cross section of the protective baffle (18) is larger than the cross section of the hammering base (17); the ground pile head (16) connecting part is fixedly connected with the ground pile head (16).
4. A guarded short circuit ground wire according to claim 3, characterized in that A colored paint layer (2) is provided on the outer surface of the ground pile head (16) connecting part, and a scale is marked on the colored paint layer (2) to show the distance from the ground steel drill (7) to the contact soil base end; the colored paint layer (2) and the ground pile head (16) are arranged staggered.
5. The guarded short circuit ground wire of claim 1, wherein, It also includes clamping plate type fixing device (6); the clamping plate type fixing device (6) is connected with the ground extension line (5).
6. A guarded short circuit ground cord according to claim 1, wherein, The ground rod includes metal ground rod hook and insulating hanging rod (13) in sequence; the metal ground rod hook is provided with ground wire fixing device (12), and the ground wire fixing device (12) is connected with the ground wire (10).
7. A guarded short circuit ground line according to claim 6, characterized in that It also includes ground wire row; the ground rod is provided with at least three; the ground wire fixing device (12) on each ground rod is connected with the corresponding ground wire (10), and the plurality of ground wires (10) are connected with a bundle type ground wire (9) through a ground wire row; the bundle type ground wire (9) is connected with one wiring port of the double-line nose port (8).
8. A guarded short circuit ground cord according to claim 6, wherein, The metal ground rod hook is provided with spring clamping jaw.
9. The guarded short circuit ground wire of claim 1, wherein, One end of the ground rod is provided with rubber handle (15).
10. The guarded short circuit ground wire of claim 1, wherein, The ground rod is provided with warning label (14).