CN203535087U - Buckle-type meter tail box of electric energy meter - Google Patents

Abstract

The utility model discloses a buckle-type electric energy meter tail box of an electric energy meter, comprising a box body. Binding posts are embedded in the box body. Each binding post is a cylinder-shaped sleeve. A side surface of a wall of each sleeve has a compression seam. An upper surface of each binding post has an L-shaped buckle. Each L-shaped buckle is fixedly connected with the box body through a rotary shaft at an inflection point. A long end of each L-shaped buckle is a handle. The handle rotates around one rotary shaft. When the handle is in parallel to one binding post, the binding post is compressed to close the compression seam. When the handle and the binding post are vertical to each other, the binding post is loosened to open the compression seam. By means of vertical pushing of each L-shaped buckle, connection and disconnection between the electric energy meter and a power transmission lead are achieved, events of burning a meter tail and stealing electricity are effectively prevented, the security of operation of the electric energy meter is improved, and the labor intensity of meter installation and electricity connection is lowered.

Description

A snap-on electric energy meter meter tail box

technical field

The utility model belongs to the technical field of electric energy meters, in particular to a buckle-type electric energy meter tail box.

Background technique

An electric energy meter refers to an instrument specially used to measure the accumulated value of electric energy in a certain period of time, commonly known as an electric meter or a fire meter. The existing electric energy meter tail box is connected in the form of connecting screws: after the wire core is inserted into the connecting terminal, tighten or loosen the connecting screw perpendicular to the connecting terminal to realize the connection and disconnection of the electric energy meter and the transmission wire.

The existing electric energy meter back box mainly has the following problems: (1) The connection between the wire core and the electric energy meter is realized by tightening the terminal screws on the terminal posts, and the contact resistance between the conductors and the terminal terminals is closely related to the tightness of the terminal screws ;Whether the wiring screws are tightened is closely related to the skills, emotions, and physical strength of the installer, and is an uncontrollable factor; the phenomenon of burning the end of the meter often occurs on site because the wiring screws are not tightened. (2) After the wiring screws on the terminal are tightened, there is a certain gap between the wiring screw and the terminal. You can insert a short-circuit wire into the terminal or hang it on the wiring screw to steal electricity. After the short-circuit wire is removed, there is no trace of wiring, so it is impossible to determine electrical behavior. (3) Wires smaller than the installation wire diameter of the electric energy meter can be installed on the electric energy meter by tightening the wiring screws, which brings safety hazards to the operation of the electric energy meter. (4) A large number of meter installation work on site requires repeated tightening of a large number of screws, and the work intensity of the installers is very high.

Utility model content

The technical problem to be solved by the utility model is to provide a buckle-type electric energy meter tail box with reasonable anti-theft design and convenient wiring.

In order to solve the problems of the technologies described above, the technical scheme that the utility model takes is as follows:

A buckle-type electric energy meter tail box, including a box body, the box body is inlaid with terminals, the terminals include current line terminals and voltage line terminals, and the box body is provided with a number of corresponding current line terminals The terminal threading hole and the voltage line terminal threading hole, the terminal is a cylindrical sleeve, the side of the sleeve tube wall is provided with a compression joint, the upper surface of the terminal has an L-shaped buckle, the L-shaped clamp The buckle is fixedly connected with the box body through the rotating shaft at the inflection point. The long end of the L-shaped buckle is a handle, and the handle rotates around the rotating shaft. When the handle is parallel to the terminal, the terminal is squeezed to close the compression seam. Release the terminal when the terminal is vertical to open the compression joint.

The above-mentioned box body is provided with a watch tail cover, and the watch tail cover is connected with the box body through screws.

The above-mentioned connecting terminal is a cylindrical copper sleeve, and its inner diameter is suitable for the outer diameter of the external wire.

After the handle of the above-mentioned L-shaped buckle is pushed down until it is parallel to the terminal, the end cover of the meter is completely closed with the box body.

Compared with the prior art, the beneficial effect of the utility model is: the utility model can realize the connection and disconnection of the electric energy meter and the transmission wire through the up and down push of the L-shaped buckle, and can effectively prevent the burning of the tail of the meter and the event of electricity theft occurrence, improve the safety of electric energy meter operation, and reduce the labor intensity of meter installation and connection work.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is the main view structure schematic diagram of the utility model;

Fig. 2 is a top view structural schematic diagram of Fig. 1;

Fig. 3 is a schematic diagram of the cross-sectional structure of A-A of Fig. 2;

FIG. 4 is a schematic diagram of the cross-sectional structure along line A-A of FIG. 1 .

The reference numerals described in the figure are:

1. Meter tail cover; 2. Screws; 3. Current line terminal threading hole; 4. Voltage line terminal threading hole; 5. Box body; 6. L-shaped buckle; 7. Terminal block; 8. Current line connection Terminals; 9. Terminals for voltage wires; 10. Rotary shaft.

Detailed ways

As shown in Figures 1 to 4, a buckle-type electric energy meter tail box includes a box body 5, and a terminal 7 is embedded in the box body 5, and the terminal 7 includes a current line terminal 8 and a voltage line connection terminal. Terminal 9, the box body 5 is provided with a number of corresponding current line terminal threading holes 3 and voltage line terminal threading holes 4, the terminal 7 is a cylindrical casing, and the side of the casing wall is provided with Compression seam, there is an L-shaped buckle 6 on the upper surface of the terminal 7, the L-shaped buckle 6 is fixedly connected with the box body 5 through the rotating shaft 10 at the inflection point, and the long end of the L-shaped buckle 6 is a handle , the handle rotates around the rotating shaft 10, when the handle is parallel to the terminal 7, squeeze the terminal 7 to close the compression joint, and when the handle is perpendicular to the terminal 7, release the terminal 7 to open the compression joint. The case body 5 is provided with a watch tail cover 1 , and the watch tail cover 1 is connected with the box body 5 through screws 2 .

The above terminal 7 is a cylindrical copper sleeve, the inner diameter of which is suitable for the outer diameter of the external wire, and the side of the sleeve tube wall is cut with a compression seam. When the copper core wire is clamped, when the external force is released, the compression seam opens and the copper core wire can be loosened. When the handle of the L-shaped buckle 6 is pushed down to be parallel to the terminal 7, the terminal 7 is squeezed to close the compression seam; when the handle of the L-shaped buckle 6 is pulled upward to be perpendicular to the terminal 7, the terminal 7 is released The compression seam is opened; when the L-shaped buckle 6 is pushed down to be parallel to the terminal 7, the end cover 1 and the box body 5 are completely closed. The up and down push of the L-shaped buckle can realize the connection and disconnection of the electric energy meter and the transmission wire, which can effectively prevent the occurrence of meter burning and electricity theft, ensure that the outer diameter of the wire core meets the standard, and improve the operation efficiency of the electric energy meter. Safety, reduce the labor intensity of meter installation and power connection work.

When wiring, the L-shaped buckle 6 remains perpendicular to the terminal 7. At this time, the compression seam of the terminal 7 is opened, and the wire core is passed through the threading hole 3 of the current line terminal and the threading hole 4 of the voltage line terminal. Insert the terminal 7, push down the handle of the L-shaped buckle 6 to be parallel to the terminal 7, the L-shaped buckle 6 presses the terminal 7 to close the compression seam, and the terminal 7 tightly wraps the entire outer surface of the wire core to realize The tight connection between terminal 7 and the wire core and the minimum contact resistance; operate in the reverse order above to remove the installation. If the L-shaped buckle 6 is not pushed in place, the compression seam of the terminal 7 cannot be closed, or the outer diameter of the wire core is smaller than the installation requirements of the electric energy meter, the terminal 7 cannot compress the wire, the wire is loose, and the installation is unqualified. After the installation is completed, there is no attachment point for the second wire on the inner and outer surfaces of the terminal 7, which can effectively prevent the occurrence of electric stealing from the short-circuited wire at the end of the meter.

Claims (4)

1. a buckle-type meter tail box electric energy meter, comprise box body (5), in described box body (5), be inlaid with connection terminal (7), connection terminal (7) comprises electric current line connection terminal (8) and pressure-wire connection terminal (9), box body (5) is provided with several corresponding electric current line connection terminal through wires hole (3) and pressure-wire connection terminal through wires holes (4), described connection terminal (7) is tubular shell, this sleeve pipe tube wall side is provided with compressed joint, it is characterized in that: the upper surface of described connection terminal (7) has a L shaped buckle (6), this L shaped buckle (6) is fixed together with box body (5) by being positioned at the turning axle (10) of flex point, the long end of L shaped buckle (6) is handle, described handle rotates around turning axle (10), handle pushes connection terminal (7) when parallel with connection terminal (7) makes compressed joint closed, when handle is vertical with connection terminal (7), pine opens compressed joint from connection terminal (7).

2. a kind of buckle-type meter tail box electric energy meter as claimed in claim 1, is characterized in that: described box body (5) is provided with table tail-hood (1), and described table tail-hood (1) is connected with box body (5) by screw (2).

3. a kind of buckle-type meter tail box electric energy meter as claimed in claim 1, is characterized in that: described connection terminal (7) is cylindrical shape copper sleeve, the external diameter fit of its internal diameter and external wire.

4. a kind of buckle-type meter tail box electric energy meter as claimed in claim 1, is characterized in that: the handle of described L shaped buckle (6) promote downwards to put in place parallel with connection terminal (7) after, table tail-hood (1) and complete the covering of box body (5).

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