CN219717271U - Earth leakage protection earth wire - Google Patents

Abstract

The utility model discloses a leakage protection ground wire, which comprises a wire body, wherein the wire body comprises a wire, a first insulating layer is fixedly sleeved on the surface of the wire, a protective layer is fixedly sleeved on the surface of the first insulating layer, a second insulating layer is fixedly sleeved on the surface of the protective layer, terminal connecting rings are fixedly connected to the surfaces of two ends of the wire body, sliding sleeves are slidably sleeved on the surfaces of two ends of the wire body, and steel wires are fixedly connected to the surfaces of the sliding sleeves. According to the utility model, the wire body, the sliding sleeve, the steel wire, the tension ring and the fixing structure are arranged, when the wire body is connected with the grounded fixing bolt through the terminal connecting rings at the two ends, the tension ring can be sleeved on the fixing bolt, the distance between the fixing structure and the terminal connecting rings is adjusted, the steel wire is straightened, the tension is increased by utilizing the steel wire, and the terminal connecting rings are prevented from being separated from the wire body caused by carelessly pulling the wire body when an operator overhauls in the power distribution cabinet.

Description

Earth leakage protection earth wire

Technical Field

The utility model relates to the technical field of leakage protection, in particular to a leakage protection ground wire.

Background

The leakage protection is a safety protection measure capable of automatically cutting off a power supply or sending an alarm signal when the leakage current of the power grid exceeds a certain set value, the leakage protection in the power grid can prevent the personal electric shock casualties, and the high-voltage power grid cannot completely prevent the personal electric shock casualties, but can improve the safety of the power grid and equipment.

The ground wire is needed to be used in common cooperation with leakage protection measures, annular connecting terminals are sleeved at two ends of the existing ground wire, when the ground wire is installed, the annular terminals are sleeved on the fixing bolts, then the fixing bolts are screwed down to fix the ground wire, but the terminals at two ends of the ground wire are fixedly sleeved on the surface of the ground wire through pressing, so that the connection strength of the terminals and the ground wire is not high, and when an overhaul worker frequently opens the power distribution cabinet to overhaul, if the ground wire is carelessly pulled, the terminals and the ground wire are easily separated. Secondly, the existing ground wire only comprises an internal copper wire and an insulating cover on the surface, so that mice cannot be prevented from biting, and further improvement is needed.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a leakage protection ground wire.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a earth leakage protection ground wire, includes the line body, the line body includes the wire, wire fixed surface has cup jointed first insulating layer, first insulating layer fixed surface has cup jointed the protective layer, protective layer fixed surface has cup jointed the second insulating layer, the equal fixedly connected with terminal go-between in surface at line body both ends, the sliding sleeve has all been slided to the surface at line body both ends, sliding sleeve fixed surface has wire, wire keeps away from the one end fixedly connected with tensile ring of sliding sleeve, the inside fixed knot who is used for fixed sliding sleeve position that is equipped with of sliding sleeve.

Furthermore, the inner diameter of the round hole in the middle of the tensile ring is the same as the inner diameter of the round hole in the middle of the terminal connecting ring, so that when the ground wire is installed, the tensile ring and the terminal connecting ring can be sleeved on the surface of a bolt for fixing the terminal connecting ring together, and the tensile ring and the terminal connecting ring are fixed together by the bolt.

Further, fixed knot constructs including being located the inside cambered surface board of sliding sleeve, the screw has been seted up at sliding sleeve lateral wall middle part and is close to cambered surface board one side, the inside rotation of screw is connected with the lock bolt, the lock bolt is located the one end and the laminating of cambered surface board of sliding sleeve, can extrude the arc panel through rotating the lock bolt, utilizes the arc panel to hug closely the line body surface for the sliding sleeve can fix in line body surface optional position.

Furthermore, guide rods are fixed on the surfaces of the two ends of the cambered surface plate, through holes are formed in the two ends of the side wall of the sliding sleeve and close to the guide rods, the guide rods penetrate through the through holes and are in sliding connection with the through holes, and the cambered surface plate can only move along the direction of the guide rods by sliding the guide rods in the through holes.

Furthermore, the anti-drop cap is fixedly connected with one end of the guide rod, which is positioned outside the sliding sleeve, and the size of the anti-drop cap is larger than that of the through hole, so that the anti-drop cap can prevent the guide rod from separating from the through hole when moving in the through hole.

Further, the lead is made of copper wires.

Furthermore, the protective layer is made of steel strips, the hardness of the steel strips is higher, and the ground wire can be prevented from being scratched by mice.

The utility model has the beneficial effects that:

1. when the wire body is connected with the grounded fixing bolt through the terminal connecting rings at the two ends, the tensile ring can be sleeved on the fixing bolt, the distance from the fixing structure to the terminal connecting rings is adjusted, the wire line is straightened, the tensile property is increased by using the wire line, and the situation that the terminal connecting rings are separated from the wire body due to the fact that an operator carelessly pulls the wire body when overhauling in the power distribution cabinet is avoided.

2. When the wire is used, the wire body comprises a wire, the first insulating layer, the protective layer and the second insulating layer, and the protective layer is steel armor, so that the wire body can be prevented from being bitten by a mouse.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is an overall schematic of the present utility model;

FIG. 3 is an enlarged view at A in the drawing;

fig. 4 is a cross-sectional view of a wire body of the present utility model.

Legend description:

1. a wire body; 101. a wire; 102. a first insulating layer; 103. a protective layer; 104. a second insulating layer; 2. a terminal connection ring; 3. a sliding sleeve; 31. perforating; 32. a screw hole; 4. a steel wire; 5. an anti-pull ring; 6. a fixed structure; 61. an arc panel; 62. a guide rod; 63. a locking bolt.

Detailed Description

As shown in fig. 1-4, relate to a leakage protection ground wire, including line body 1, line body 1 includes wire 101, wire 101 fixed surface has cup jointed first insulating layer 102, first insulating layer 102 fixed surface has cup jointed protective layer 103, protective layer 103 fixed surface has cup jointed second insulating layer 104, the equal fixedly connected with terminal go-between 2 in surface at line body 1 both ends, sliding sleeve 3 has all been slided to the surface at line body 1 both ends, sliding sleeve 3 fixed surface is connected with wire 4, one end fixedly connected with pull ring 5 that the wire 4 kept away from sliding sleeve 3, the inside fixed knot who is used for fixed sliding sleeve 3 positions constructs 6 that is equipped with of sliding sleeve 3.

As shown in fig. 1 and 2, the inner diameter of the circular hole in the middle of the tension ring 5 is the same as the inner diameter of the circular hole in the middle of the terminal connecting ring 2, so that the terminal connecting ring 2 and the tension ring 5 can be sleeved on a bolt for fixing the terminal connecting ring 2 at the same time when the terminal connecting ring 2 is installed, and the terminal connecting ring 2 and the tension ring 5 are fixed together.

As shown in fig. 1-3, the fixing structure 6 includes a cambered surface plate 61 located inside the sliding sleeve 3, a screw hole 32 is provided in the middle of the side wall of the sliding sleeve 3 and near one side of the cambered surface plate 61, a locking bolt 63 is rotatably connected in the screw hole 32, and one end of the locking bolt 63 located in the sliding sleeve 3 is attached to the cambered surface plate 61. Guide rods 62 are fixed on the surfaces of the two ends of the arc panel 61, through holes 31 are formed in the two ends of the side wall of the sliding sleeve 3 and close to the guide rods 62, and the guide rods 62 penetrate through the through holes 31 and are in sliding connection with the through holes 31. One end of the guide rod 62, which is positioned outside the sliding sleeve 3, is fixedly connected with an anti-falling cap, and the size of the anti-falling cap is larger than that of the perforation 31. The arc panel 61 can move in the sliding sleeve 3, and the arc panel 61 can be abutted against the surface of the wire body 1 by screwing the locking bolt 63, so that the sliding sleeve 3 is fixed on the surface of the wire body 1

As shown in fig. 1 and 4, the wire 101 is made of copper wire. The protective layer 103 is made of steel strips, and the protective layer 103 is made of spiral steel strips, so that the protective layer can protect the ground wire and prevent mice from biting.

When in use, the utility model is characterized in that: firstly, the terminal connecting ring 2 and the anti-pull ring 5 are sleeved on a fixing bolt, then the fixing bolt is screwed into a threaded hole of a leakage protector or a grounding busbar, the fixing of the terminal connecting ring 2 and the anti-pull ring 5 is achieved, then the sliding sleeve 3 is moved, the distance from the sliding sleeve 3 to the terminal connecting ring 2 is larger than the length of the steel wire 4, finally the arc panel 61 is extruded by screwing the locking bolt 63, the fixing of the sliding sleeve 3 is achieved by extruding the wire body 1 by utilizing the arc panel 61, and at the moment, even if the wire body 1 is pulled, only the steel wire 4 can be pulled, and the connection part of the terminal connecting ring 2 and the wire body 1 can not be pulled, so that the protection effect is achieved.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (7)

1. The utility model provides a earth leakage protection ground wire which characterized in that: the wire comprises a wire body (1), the wire body (1) comprises a wire (101), first insulating layer (102) has been cup jointed to wire (101) fixed surface, protective layer (103) has been cup jointed to first insulating layer (102) fixed surface, protective layer (103) fixed surface has cup jointed second insulating layer (104), the equal fixedly connected with terminal go-between (2) in surface at wire body (1) both ends, sliding sleeve (3) have all been slided on the surface at wire body (1) both ends, sliding sleeve (3) fixed surface has steel wire (4), one end fixedly connected with tensile ring (5) that sliding sleeve (3) were kept away from to steel wire (4), sliding sleeve (3) inside is equipped with fixed knot constructs (6) that are used for fixed sliding sleeve (3) position.

2. A leakage protection ground as defined in claim 1, wherein: the inner diameter of the round hole in the middle of the tensile ring (5) is the same as that of the round hole in the middle of the terminal connecting ring (2).

3. A leakage protection ground as defined in claim 1, wherein: the fixing structure (6) comprises an arc-shaped plate (61) positioned inside the sliding sleeve (3), a screw hole (32) is formed in the middle of the side wall of the sliding sleeve (3) and close to one side of the arc-shaped plate (61), a locking bolt (63) is connected to the screw hole (32) in a rotating mode, and one end of the locking bolt (63) positioned inside the sliding sleeve (3) is attached to the arc-shaped plate (61).

4. A leakage protection ground according to claim 3, characterized in that: guide rods (62) are fixed on the surfaces of the two ends of the cambered surface plate (61), through holes (31) are formed in the two ends of the side wall of the sliding sleeve (3) and close to the guide rods (62), and the guide rods (62) penetrate through the through holes (31) and are in sliding connection with the through holes (31).

5. The earth leakage protection ground of claim 4, wherein: one end of the guide rod (62) positioned outside the sliding sleeve (3) is fixedly connected with an anti-falling cap, and the size of the anti-falling cap is larger than that of the perforation (31).

6. A leakage protection ground as defined in claim 1, wherein: the lead (101) is made of copper wires.

7. A leakage protection ground as defined in claim 1, wherein: the protective layer (103) is made of steel strips.