CN203491397U - Split type alarm grounding device - Google Patents

Abstract

The utility model discloses a split-type alarm grounding device, which comprises an insulating rod, a metal hook, a grounding wire and a grounding electrode. The metal hook is in the shape of an "n" and is formed by connecting a free section and a fixed section through an arc at the top. The lower end of the fixed section is provided with an insertion pin, and the upper end of the insulating rod is provided with a mounting seat for inserting the fixed section. The mounting seat is provided with an "L"-shaped groove that matches the insertion pin. The back and the other end of the fixed section are connected to the ground electrode, and the back of the fixed section is also connected with an acousto-optic alarm; the utility model can realize the detachable plug-in of the metal hook and the insulating rod through the cooperation of the plug-in pin and the "L"-shaped groove. After the grounding wire is connected, the two can be separated to temporarily store the insulating rod to prevent it from being hung on the high-voltage line and affect the grounding safety; moreover, the back of the fixed section is also connected with an audible and visual alarm, which can protect the high-voltage Conduct real-time electricity testing on the line to prevent safety accidents where workers install grounding wires with electricity.

Description

Split type alarm grounding device

technical field

The utility model relates to a grounding device for electric power construction, in particular to a split type grounding device with an alarm function.

Background technique

In the construction process of high-voltage power transmission lines, for the sake of safety, it is necessary to use grounding devices to ground before construction. After it is not charged, connect the ground wire to ensure the safety of the workers during construction. The existing grounding device generally includes an insulating rod, a metal hook, a grounding wire and a grounding electrode. The insulating rod and the metal hook are fixedly connected into one body. The metal hook is provided with a spring clip for clamping the substation line, and the grounding wire One end is connected with the metal hook, and the other end is connected with the ground electrode. The grounding device of this structure has the problem of inconvenient use, and may cause safety accidents. First of all, after the grounding device is used to hang the line, the long insulating rod is also hung on the high-voltage line, and the staff is likely to bump into the insulating rod, or sometimes the insulating rod is blown by the strong wind, which affects the grounding safety. Secondly, since the electroscope is not part of the grounding device, it is necessary to carry the electroscope separately during construction, and for the safety and convenience of the electric inspection, the electroscope is generally fixed on the insulating rod before the construction object is inspected. Small in size, it is easy to lose during use; more importantly, there is a certain time difference between the power test and the connection to the ground wire, and within this time difference, there may be false power transmission on the power failure equipment or user feedback. If the ground wire is directly hung after a power test, it is easy to cause damage to the substation equipment and cause unnecessary casualties to the operators.

Therefore, it is necessary to improve the existing grounding device so that the insulating rod and the metal hook become two independent parts, which can be separated after the grounding wire is hung; moreover, the electroscope becomes a part of the grounding device, thereby realizing real-time Electricity inspection to prevent safety accidents where workers install grounding wires with electricity.

Utility model content

In view of this, the purpose of this utility model is to provide a split-type alarm grounding device, the insulating rod and the metal hook become two independent parts, which can be separated after the grounding wire is hung; moreover, the electroscope becomes a part of the grounding device , so as to realize real-time power inspection and prevent safety accidents where workers install grounding wires with electricity.

The split-type alarm grounding device of the utility model includes an insulating rod, a metal hook, a ground wire and a ground electrode. The metal hook is in the shape of an "n" and is formed by connecting a free section and a fixed section through an arc at the top. The lower end of the fixed section is provided with an insertion pin, and the upper end of the insulating rod is provided with a mounting seat for inserting the fixed section, and the mounting seat is provided with an "L" shaped groove that fits with the insertion pin One end of the ground wire is connected to the back of the fixed section, the other end is connected to the ground electrode, and an audible and visual alarm is also connected to the back of the fixed section.

Further, the inner surface of the metal hook is provided with a single tongue, and the single tongue is provided with a compression spring connected with the fixing section.

Further, the acousto-optic alarm includes an audible alarm and a light alarm, the sound-emitting hole is provided on the outside of the audible alarm, and an LED flash is provided on the outside of the light alarm.

Further, the upper part of the ground electrode has a through hole for the ground wire to pass through, and the parts of the ground electrode located on both sides of the through hole are provided with compression nuts.

Further, the bottom end of the ground electrode is provided with a conical ground head, and the lower part of the ground electrode is provided with a spiral thread.

Further, the outer sheath of the ground wire is provided with a luminescent coating.

Further, a rubber handle is connected to the bottom end of the insulating rod.

Beneficial effects of the utility model: the split type alarm grounding device of the utility model can realize the detachable insertion of the two through the cooperation of the insertion pin at the lower end of the fixed section of the metal hook and the "L" shaped groove at the upper end of the insulating rod After hanging the grounding wire, the metal hook can be separated from the insulating rod, and the insulating rod can be temporarily stored to prevent it from being hung on the high-voltage line and affect the grounding safety; moreover, the back of the fixed section is also connected with an audible and visual alarm. It can carry out real-time electric inspection on high-voltage lines to prevent safety accidents where workers install grounding wires with electricity.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a view along the direction A in Fig. 1 .

Detailed ways

Figure 1 is a schematic structural view of the utility model, and Figure 2 is a view from the direction A in Figure 1, as shown in the figure: the split alarm grounding device of this embodiment includes an insulating rod 1, a metal hook 2, a grounding wire 3 and The ground electrode 4, the metal hook 2 is "n" shaped and is formed by connecting the free section 21 and the fixed section 22 through an arc at the top. The lower end of the fixed section 22 is provided with an insertion pin 22a, and the insulating rod The upper end of 1 is provided with a mounting seat 11 for inserting the fixed section 22, and the mounting seat 11 is provided with an "L"-shaped groove 11a matching with the insertion pin, and one end of the grounding wire 3 is connected to the The back side and the other end of the fixed section 22 are connected to the ground electrode 4, and the back side of the fixed section 22 is also connected with an audible and visual alarm 5; the insulating rod 1 is a colored tube made of epoxy resin, and its Good insulation performance, high strength, light weight, bright colors, and smooth appearance; the metal hook 2 is used to clamp the substation line and is cast from a highly conductive metal material; the fixed section 22 is the "n" shaped metal hook 2 The vertical part used to connect with the insulating rod 1, the free section 21 is the opposite vertical part, and the two sections are connected by an arc at the top; the mounting seat 11 is the inner concave cavity at the upper end of the insulating rod 1; the insertion pin 22a It is integrally formed with the fixed section 22; the detachable plug-in connection between the insulating rod 1 and the metal hook 2 can be realized through the cooperation of the insertion pin 22a and the "L"-shaped groove 11a, and the metal hook 2 can be connected after the ground wire is hung. Separated from the insulating rod 1, the insulating rod 1 can be temporarily stored to prevent it from being hung on the high-voltage line and affect the grounding safety; moreover, the back of the fixed section 22 is also connected with an audible and visual alarm 5, which can conduct real-time electrical inspection on the high-voltage line , and sound alarm and light alarm at the same time, to prevent the occurrence of safety accidents in which the staff install the grounding wire with electricity.

In this embodiment, the inner surface of the metal hook 2 is provided with a single tongue 6, and the single tongue 6 is provided with a pressure spring 61 connected to the fixed section 22; the single tongue 6 is made of high-quality aluminum alloy die-casting , the strength is high, and then the surface is treated to make the surface not easy to oxidize; the inner surface is the inside of the "n" shaped metal hook 2; the bottom end of the single tongue 6 is pivotally connected to the back of the fixed section 22 by a pin, and one end of the compression spring 61 It is pinned together with the single tongue piece 6, and the other end is connected together with the fixed section 22 by a compression spring pin; the structure is simple, and the clamping effect is remarkable.

In this embodiment, the acousto-optic alarm 5 includes an audible alarm 51 and a light alarm 52, the outer side of the audible alarm 51 is provided with a sounding hole 51a, and the outer side of the light alarm 52 is provided with an LED flash 52a; As shown in Figure 2, the sound alarm piece 51 is positioned at the upper side, and the light alarm piece 52 is positioned at the lower side. flashes in order to adequately alert the operator.

In this embodiment, the upper part of the ground electrode 4 is provided with a through hole 41 for the ground wire 3 to pass through, and the parts of the ground electrode 4 located on both sides of the through hole 41 are provided with compression nuts 42 The aperture of the through hole 41 is slightly larger than the grounding wire 3, so as to ensure the smooth passing of the grounding wire 3; the grounding pole 4 between the compression nuts 42 on both sides is a section of screw, and the grounding wire 3 passes through the through hole 41 and then screwed tightly The ground wire 3 can be fixed by tightening the nut 42, so that the connection between the ground wire 3 and the ground electrode 4 is reliable.

In this embodiment, the bottom end of the ground electrode 4 is provided with a conical ground head 43, and the bottom of the ground electrode 4 is provided with a helical screw thread 44; the ground head 43 is integrally formed with the ground electrode 4, so that the ground electrode 4 With the tip of the tail, plus the spiral thread 44, the grounding electrode 4 can be easily rotated into the ground to meet the buried depth requirements of the grounding electrode 4; in order to further improve the hardness of the grounding electrode 4, the grounding head 43 is quenched. Finally, the hardness reaches HRC55, and the ground electrode 4 is galvanized as a whole for anti-corrosion treatment.

In this embodiment, the outer sheath of the ground wire 3 is provided with a luminescent coating (not shown in the figure); the ground wire 3 includes an inner copper wire and an outer sheath wrapped around the copper wire, and the outer sheath The layer is the insulating outer skin; the outer sheath is provided with a luminescent coating, which is preferably a fluorescent material, which can emit fluorescence in the night environment, and is convenient for the staff to identify the position, quantity, and state of the grounding wire 3, thereby avoiding misoperation and accidents Moreover, the insulating rod 1 can also be added with a luminous material that can emit light naturally at night, so that the insulating rod 1 can also become an easily identifiable part.

In this embodiment, the bottom end of the insulating rod 1 is connected with a rubber handle 7; the rubber handle 7 can better ensure the safety of the staff and enhance the comfort of operation.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (7)

1. a split type warning earthing device, comprise insulating bar, metal grab, earth lead and earth electrode, it is characterized in that: described metal grab is " n " shape and is formed by connecting by top arc by free segment and canned paragraph, the lower end of described canned paragraph is provided with the pin of pegging graft, the upper end of described insulating bar is provided with the mount pad for the described canned paragraph of pegging graft, described mount pad is provided with " L " shape groove coordinating with described grafting pin phase shape, one end of described earth lead is connected to the back side of described canned paragraph, the other end is connected with described earth electrode, the back side of described canned paragraph is also connected with audible-visual annunciator.

2. split type warning earthing device according to claim 1, is characterized in that: the inner face of described metal grab is provided with single tongue piece, and described single tongue piece is provided with the stage clip being connected with described canned paragraph.

3. split type warning earthing device according to claim 2, is characterized in that: described audible-visual annunciator comprises acoustic alarm part and light warning member, and the outside of described acoustic alarm part is provided with vocal hole, and the outside of described smooth warning member is provided with LED photoflash lamp.

4. split type warning earthing device according to claim 3, is characterized in that: the top of described earth electrode has the through hole for passing for described earth lead, and the part that is positioned at described through hole both sides of described earth electrode is provided with clamp nut.

5. split type warning earthing device according to claim 4, is characterized in that: the bottom of described earth electrode is provided with coniform grounding head, and the bottom of described earth electrode is provided with helical form screw thread.

6. split type warning earthing device according to claim 5, is characterized in that: the outer jacket of described earth lead is provided with luminescent coating.

7. split type warning earthing device according to claim 6, is characterized in that: the bottom of described insulating bar is connected with rubber handle.

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