CN205786771U - A kind of electric energy meter table tail - Google Patents

Abstract

The utility model discloses a novel electric energy meter tail, which belongs to the technical field of electric energy meters. This utility model. In the utility model, a metal block for preventing damage and a metal spring washer for preventing loosening are installed inside the tail body of the electric energy meter. It solves the problem that the connection between the electric meter wiring port bolt and the connecting wire is easy to be damaged and the pressing bolt is easy to loosen. The utility model can prolong the service life of the electric energy meter and improve the accuracy of the meter.

Description

A New Type of Electric Energy Meter Tail

technical field

The utility model relates to the technical field of electric energy meters, in particular to a novel electric energy meter tail.

Background technique

The existing watt-hour meters in my country and most countries in the world use conventional screw-on wiring, but in this way, because the compression bolts are in a tense state for a long time, fatigue is prone to occur, resulting in the pressure on the wires increasing over time. The increase and gradually become smaller, and the compression bolt is too tight and will cause damage to the wire, thereby increasing the resistance of the wire.

To sum up the above reasons, it will cause the wire and the connecting body to be loose, the resistance of the wire will increase, and when the current is large, it will be ignited, so that the tail of the meter will be locally heated, and finally the structure of the tail of the meter will be burned out, affecting the measurement of the entire system. More than 90% of the current electric energy meter damage is caused by the current meter tail structure. In order to solve this problem, it is necessary to have a simple structure, which can prevent the bolt from loosening and make the pressing bolt not damage the wire. A good power meter tail structure.

Utility model content

In order to make up for the deficiencies of the prior art, the utility model provides a novel electric energy meter tail.

The technical scheme of the utility model is:

A new type of electric energy meter meter tail, including a metal meter tail body 7, the metal meter tail body 7 includes a wire installation part and a plug-in part that cooperates with the electric energy meter, and the plug-in part is provided with a socket for pressing the electric energy meter. The bolt 6 that connects the wire and reliably connects the wire to the metal watch tail body 7; the wire installation part of the metal watch tail body 7 is provided with a groove 8, and the metal block 4 for preventing damage is provided in the groove 8, so that In the groove 8, the space at the lower part of the anti-injury line metal block 4 constitutes a wire hole 9; a spring washer 2 is provided above the anti-injury line metal block 4, and a wire mounting part of the metal watch tail body 7 is provided for The fixing bolt 3 for fixing the spring washer 2 and the metal block 4 of the anti-injury line, the bottom of the fixing bolt 3 is provided with a support spring 5; the wire mounting part of the metal watch tail body 7 is provided with a number of holes for pressing the wire 9 the compression bolt 1 of the inner conductor.

As a preferred solution, the end of the metal block 4 of the anti-injury wire has a wedge-shaped structure. The wedge-shaped structure at the end of the metal block 4 of the anti-injury line is beneficial to the insertion of the wire. The metal block 4 of the anti-injury wire directly contacts the wire, which can prevent the wire from being damaged by the compression bolt 1 .

As a preferred solution, bolt holes are provided on the spring washer 2 and the metal block 4 of the anti-injury line, and the ends of the fixing bolts 3 pass through the bolt holes on the spring washer 2 and the metal block 4 of the anti-injury line respectively. The lower surface of the wire hole 9.

The beneficial effects of the utility model are:

The utility model aims at the phenomenon in the prior art that the connection between the electric meter wiring port bolt and the connecting wire is easy to be damaged, and the pressing bolt is easy to loosen to cause damage to the metering device. The tail structure of the electric energy meter with loose wires.

In the utility model, a metal block for preventing damage and a metal spring washer for preventing loosening are installed inside the tail body of the electric energy meter. It solves the problem that the connection between the electric meter wiring port bolt and the connecting wire is easy to be damaged and the pressing bolt is easy to loosen. The utility model can prolong the service life of the electric energy meter and improve the accuracy of the meter.

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 utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of the tail of the electric energy meter of the present utility model;

Fig. 2 is a schematic cross-sectional structure diagram of Fig. 1;

Fig. 3 is the structural representation of the tail of the electric energy meter of the prior art;

FIG. 4 is a schematic cross-sectional structure diagram of FIG. 3 .

detailed description

As shown in Fig. 3 and Fig. 4, the meter tail of the electric energy meter in the prior art includes a metal meter tail body 7, and the metal meter tail body 7 includes a wire installation part and a socket part which is connected with the electric energy meter. The screw 6 is used to compress the connection wire of the electric energy meter and make the wire and the metal meter tail body 7 reliably connected. The wire installation part is provided with a wire hole 9, and the metal watch tail body 7 above the wire hole 9 is provided with a plurality of pressing bolts 1. This structure compresses the place where the wire in the compression bolt and the wire hole 9 joins, the wire is easily damaged, and the bolt is easy to loosen.

Example 1

As shown in Fig. 1 and Fig. 2, a new type of electric energy meter tail includes a metal tail body 7, and the metal tail body 7 includes a wire installation part and a socket part that cooperates with the electric energy meter. The screw 6 is used to compress the connection wire of the electric energy meter and make the wire and the metal meter tail body 7 reliably connected.

The wire mounting portion of the metal watch tail body 7 is provided with a groove 8, and the groove 8 is provided with an anti-injury line metal block 4, and the space at the bottom of the anti-injury line metal block 4 in the groove 8 forms a wire hole 9; A spring washer 2 is arranged above the metal block 4, and a fixing bolt 3 for fixing the spring washer 2 and the metal block 4 of the anti-injury wire is arranged on the wire mounting part of the metal tail body 7, and the bottom of the fixing bolt 3 is provided with a support spring 5 ; There are a number of compression bolts 1 for compressing the wires in the wire hole 9 on the metal table tail body 7 wire mounting parts.

In order to facilitate the insertion of the wire, the end of the anti-damage wire metal block 4 is wedge-shaped. The anti-injury line metal block 4 is directly in contact with the wire, which can prevent the compression bolt 1 from causing damage to the wire.

In addition, bolt holes are provided on the spring washer 2 and the metal block 4 of the anti-injury line, and the ends of the fixing bolts 3 respectively pass through the bolt holes on the spring washer 2 and the metal block 4 of the anti-injury line to reach the lower surface of the wire hole 9 . The spring 5 is made to be located between the lower surface of the anti-damage line metal block 4 and the bottom of the wire hole, and is used to support the anti-injury line metal block 4 .

Claims (3)

1. A new type of electric energy meter tail, including a metal tail body (7), the metal tail body (7) includes a wire installation part and a socket part that is mated and connected with the electric energy meter, and the socket part is provided with There are bolts (6) for pressing the connection wires of the electric energy meter and reliably connecting the wires to the metal meter tail body (7); the feature is that the wire installation part of the metal meter tail body (7) is provided with grooves (8 ), the groove (8) is provided with an anti-injury wire metal block (4), and the space located in the lower part of the anti-injury wire metal block (4) in the groove (8) constitutes a wire hole (9); A spring washer (2) is provided above the anti-injury line metal block (4), and a spring washer (2) and an anti-injury line metal block (4) are provided on the wire mounting part of the metal watch tail body (7) The fixing bolt (3), the bottom of the fixing bolt (3) is covered with a support spring (5); the wire mounting part of the metal watch tail body (7) is provided with a number of wires for pressing the inside of the wire hole (9). Cable hold-down screw (1). 2. The tail of the new electric energy meter according to claim 1, characterized in that: the end of the anti-damage line metal block (4) is wedge-shaped. 3. The tail of the new electric energy meter according to claim 1 or 2, characterized in that: the spring washer (2) and the metal block of the anti-damage line (4) are provided with bolt holes, and the fixing bolts (3 ) respectively pass through the bolt holes on the spring washer (2) and the anti-damage line metal block (4) to reach the lower surface of the wire hole (9).