CN209448028U - Top-closed structure connection component suitable for electricity earthing cable - Google Patents

Abstract

The utility model relates to the technical field of electric power maintenance equipment, and specifically discloses a top-tight connection assembly suitable for electric grounding wires, comprising: a conductive block on the wiring side, a trapezoidal boss is provided on one side of the conductive block on the wiring side, and a conductive block on the wiring side There are also through holes; the grounding side conductive block, one side of the grounding side conductive block is provided with a trapezoidal groove, and the bottom of the trapezoidal groove is provided with a threaded hole; the tightening bolt includes a rotating nut, a connecting screw and a tightening screw The rotating nut is located on the side of the conductive block on the wiring side away from the conductive block on the grounding side; the connecting screw is located in the first screw hole, one end of the connecting screw is fixedly connected to the rotating nut, and the other end is fixedly connected to the end of the tightening screw; The tight screw rod is located in the second screw rod hole, and its other end is used for threaded connection with the threaded hole. The utility model provides a top-tight connection assembly suitable for electric grounding wires, which can be easily operated, firmly connected, and effectively reduce grounding resistance.

Description

Jack-tight connection assemblies for power ground wires

technical field

The utility model relates to the technical field of electric power maintenance equipment, in particular to a top-tight connection assembly suitable for electric grounding wires.

Background technique

The grounding device consists of a grounding body and a grounding wire.

(1) Grounding body. The metal conductor buried in the ground and directly in contact with the earth is called grounding body or grounding level, which can be divided into natural grounding body and artificial grounding body. There are two basic types of artificial grounding body: vertical grounding body and horizontal grounding body. The vertical grounding body is generally made of iron pipes with a diameter of 30mm-60mm and a length of 2m-3m; the horizontal grounding body is generally made of iron strips with a width of 20mm-40mm and a thickness of not less than 4mm or round steel with a diameter of 10mm-20mm. to make. The depth of the grounding body buried underground should not be greater than 0.5m to 0.8m to ensure that it is not subject to mechanical damage and to reduce the influence of the season on the moisture of the soil around the grounding body.

(2) Ground wire. The metal conductor used to connect the grounding part of the power equipment and the grounding body is called a grounding wire, which can generally be made of steel bars, steel strands, iron strips or angle steel.

Generally, in a power system, a grounding wire generally consists of three parts: a grounding rod, a grounding copper wire, and a connecting terminal. When performing power maintenance, it is necessary to connect the connection terminal of the grounding wire to the grounding body, so that the grounding wire is actually connected to the earth or the electrical grounding grid. The grounding wire and the grounding body should be in good contact and reliable, and the connection resistance must meet the relevant requirements for grounding resistance.

The traditionally used connection terminals are mostly metal clamps, the contact area between the connection terminal and the grounding body is small, and the grounding resistance is large, which is difficult to meet the relevant requirements.

Utility model content

An object of the present invention is to provide a top-tight connection assembly suitable for electric grounding wires, which can be easily operated, firmly connected, and effectively reduce grounding resistance.

In order to achieve the above purpose, the utility model provides a top-tight connection assembly suitable for power grounding wires, including:

Conductive block on the wiring side, the conductive block on the wiring side is used to connect to the grounding wire, a trapezoidal boss is provided on one side of the conductive block on the wiring side, and a through hole is also provided on the conductive block on the wiring side; the through hole is formed by a coaxial Composed of the first screw hole and the second screw hole, the diameter of the first screw hole is smaller than the diameter of the second screw hole;

The conductive block on the ground side, the conductive block on the ground side is used to connect with the ground body, one side of the conductive block on the ground side is provided with a trapezoidal groove, and the trapezoidal boss is used to be inserted into the trapezoidal groove, the The bottom of the trapezoidal groove is provided with a threaded hole;

Tightening bolts, the tightening bolts include a rotating nut, a connecting screw and a tightening screw; the rotating nut is located on the side of the conductive block on the wiring side away from the conductive block on the grounding side; the connecting screw is located on the side of the conductive block on the grounding side In the first screw hole, one end of the connecting screw is fixedly connected to the rotating nut, and the other end is fixedly connected to one end of the tightening screw; the tightening screw is located in the second screw hole, and the other end is used for Threaded connection with the threaded hole.

Preferably, the length of the tightening screw is equal to the length of the second screw hole.

Preferably, anti-slip lines are provided on the outside of the trapezoidal boss.

Preferably, it also includes:

The plastic casing, the conductive block at the wiring side, the conductive block at the grounding side and the tightening bolts are all located in the plastic casing, and a wire passing hole is provided on both sides of the plastic casing.

The utility model has the beneficial effects of providing a top-tight connection assembly suitable for electric power grounding wires. By using trapezoidal bosses and trapezoidal grooves as contact parts, the connection between the grounding wire and the grounding body is convenient and fast, and the connection is firm. And greatly increased the contact area, which can effectively reduce the grounding resistance.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is an exploded schematic diagram of a top-tight connection assembly suitable for power grounding wires provided by an embodiment;

Fig. 2 is a schematic diagram of the assembly of the top-tight connection assembly suitable for power grounding wires provided by the embodiment;

Fig. 3 is a schematic structural diagram of the plastic housing provided by the embodiment.

In the picture:

1. Conductive block on the wiring side; 101. Trapezoidal boss;

2. Conductive block on the ground side; 201, trapezoidal groove; 202, threaded hole;

3. Tighten the bolt; 301. Rotate the nut; 302. Connect the screw; 303. Tighten the screw;

4. Plastic shell.

Detailed ways

In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, The embodiments described below are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present invention, it is to be understood that when a component is said to be "connected" to another component, it may be directly connected to the other component or there may be an intervening component at the same time. When a component is said to be "set on" another component, it can be set directly on another component or there may be a centered component at the same time.

In addition, the terms "long", "short", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying It is not to be construed as a limitation of the present invention that a device or element must have this particular orientation and operate in a particular orientation configuration.

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Referring to FIG. 1 to FIG. 3 , this embodiment provides a jack-tight connection assembly suitable for power grounding wires, including a wiring-side conductive block 1 , a ground-side conductive block 2 and jacking bolts 3 .

The conductive block 1 on the wiring side is used to connect with the grounding wire, a trapezoidal boss 101 is provided on one side of the conductive block 1 on the wiring side, and a through hole is also provided on the conductive block 1 on the wiring side. The ground-side conductive block 2 is used to connect with the ground body, and one side of the ground-side conductive block 2 is provided with a trapezoidal groove 201, and the trapezoidal boss 101 is used to be inserted into the trapezoidal groove 201. A bottom of the trapezoidal groove 201 is provided with a threaded hole 202 . The tightening bolt 3 includes a rotating nut 301, a connecting screw 302 and a tightening screw 303; the rotating nut 301 is located on the side of the conductive block 1 on the wiring side away from the conductive block 2 on the grounding side; the connection The screw 302 is located in the first screw hole, one end of the connecting screw 302 is fixedly connected to the rotating nut 301, and the other end is fixedly connected to one end of the tightening screw 303; the tightening screw 303 is located on the second screw The other end is used for threaded connection with the threaded hole 202 .

Specifically, the tightening screw 303 cannot pass through the first screw hole, the length of the second screw hole is equal to the movable distance of the tightening screw 303, and the tightening screw 303 moves upward until the bottom of the tightening screw 303 is in contact with the trapezoidal protrusion when it touches the top. The bottom surface of the platform 101 is flush, which ensures that the tightening screw 303 will not protrude, and the trapezoidal boss 101 can move outward in parallel until it is separated from the trapezoidal groove 201 .

Specifically, the working process of the top-tight connection assembly suitable for power grounding wires provided in this embodiment is as follows:

① Connect the conductive block 1 on the wiring side to the ground wire; preferably, it can be plugged or welded;

②Connect the conductive block 2 on the grounding side to the grounding body; preferably, it can be connected through wires, etc.;

③ Turn the rotating nut 301 in the forward direction to retract the tightening screw 303, and then insert the trapezoidal boss 101 into the trapezoidal groove 201;

④ Rotate the rotating nut 301 in the opposite direction so that the tightening screw 303 extends into the threaded hole 202, and continue to rotate the rotating nut 301 until the conductive block 1 on the wiring side and the conductive block 2 on the grounding side are closely attached.

The top-tight connection assembly suitable for power grounding wires provided in this embodiment uses the trapezoidal boss 101 and the trapezoidal groove 201 as the contact parts, which greatly increases the contact area, thereby effectively reducing the grounding resistance.

Preferably, the length of the tightening screw 303 is equal to the length of the second screw hole.

Preferably, anti-slip lines are provided on the outside of the trapezoidal boss 101 . Specifically, the anti-skid pattern may be a wave texture structure or a mesh texture structure.

Preferably, the top-tightening connection assembly suitable for power grounding wires also includes a protective plastic shell 4, and the conductive block 1 on the wiring side, the conductive block 2 on the grounding side, and the top-tightening bolt 3 are all located in the plastic shell. 4, the two sides of the plastic shell 4 are respectively provided with a wire passing hole.

The top-tight connection assembly suitable for power grounding wires provided in this embodiment has small grounding resistance, convenient and reliable connection, and can greatly improve work efficiency.

The above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be applied to the foregoing embodiments The technical solutions described in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (4)

1. a kind of top-closed structure connection component suitable for electricity earthing cable characterized by comprising

Connection side conducting block (1), the connection side conducting block (1) are used to connect with ground line, the connection side conducting block (1) Side is equipped with trapezoid boss (101), and the connection side conducting block (1) is additionally provided with through hole；Through hole is by the first coaxial screw rod Hole and the second screw hole composition, the diameter of the diameter of first screw hole less than the second screw hole；

Ground side conducting block (2), the ground side conducting block (2) are used to connect with grounding body, the ground side conducting block (2) Side is equipped with trapezoidal groove (201), and the trapezoid boss (101) is described trapezoidal recessed for being inserted into the trapezoidal groove (201) The slot bottom of slot (201) is equipped with threaded hole (202)；

Puller bolt (3), the puller bolt (3) include rotary nut (301), connecting screw (302) and fastening screw (303)；The rotary nut (301) is located at side of the connection side conducting block (1) far from the ground side conducting block (2)； The connecting screw (302) is located in first screw hole, one end and the rotary nut (301) of connecting screw (302) It is fixedly connected, the other end is fixedly connected with the one end of the fastening screw (303)；The fastening screw (303) is located at the second spiral shell In rod aperture, the other end with the threaded hole (202) for being threadedly coupled.

2. the top-closed structure connection component according to claim 1 suitable for electricity earthing cable, which is characterized in that described to hold out against The length of screw rod (303) is equal to the length of second screw hole.

3. the top-closed structure connection component according to claim 1 suitable for electricity earthing cable, which is characterized in that described trapezoidal The outside of boss (101) is equipped with anti-skid chequer.

4. the top-closed structure connection component according to claim 1 suitable for electricity earthing cable, which is characterized in that further include:

Plastic casing (4), the connection side conducting block (1), ground side conducting block (2) and puller bolt (3) are respectively positioned on the modeling In material shell body (4), the two sides of the plastic casing (4) are respectively provided with a cable-through hole.