Plug type plugging device

Abstract

The invention discloses a plug type plugging device comprising a base, connecting posts and spring pawls. The plug type plugging device is structurally characterized in that the base is provided with connecting holes which are internally provided with lead copper sleeves. The lower parts of the lead copper sleeves are provided with insulating sheaths. The base is provided with key-shaped end holes. The base is provided with two sets or more than two sets of meter positions. The upper parts of the meter positions are provided with detection holes. The bottom parts of the connecting posts are provided with internal holes. The lower parts of the connecting posts are provided with cylinders with bosses, and the cross section is key-shaped. The upper parts of the connecting posts are provided with frustum plugs which have a cross-trough structure, and the width of the opening of the cross trough is 0.5mm. The frustum plugs are provided with plug internal holes which are internally provided with the spring pawls. Each spring pawl is provided with a pawl stand, pawl arms and wing pawls. The detection holes are connected with a short circuit detection device in a sleeving way. The plug type plugging device has the advantages of being reasonable in structural design, convenient to install and safe and reliable without screws for fixing.

Description

technical field [0001] The invention relates to a meter box connector installed on site, in particular to a plug-in connector device. Background technique [0002] As we all know, in the field installation, production test, and calibration inspection process of electric energy meters, the previous and current methods are to align the terminal holes of the electric meter with the electric meter box, insert each meter terminal of the production calibration equipment, and then use 2 screws Tightening, the actual operation is quite cumbersome, especially when the meter box is powered off and the replacement of the meter on site will affect the electricity consumption of many users. In view of the above phenomenon, the power department has formulated a standard, and the electrical connection during the installation of the meter should be realized through a special connector for the meter. Meter boxes and meter manufacturers are required to achieve interference fit between the met...

AI Technical Summary

Problems solved by technology

[0002] As we all know, in the field installation, production test, and calibration inspection process of electric energy meters, the previous and current methods are to align the terminal holes of the electric meter with the electric meter box, insert each meter terminal of the production calibration equipment, and then use 2 screws Tightening, the actual operation is quite cumbersome, especially when the meter box is powered off and the replacement of the meter on site will affect the electricity consumption of many users. In view of the above phenomenon, the power department has formulated a standard, and the electrical connection during the installation of the meter should be realized through a special connector for the meter. Meter boxes and meter manufacturers are required to achieve interference fit between the meter terminal button wiring jack and the meter plug of the meter box terminal seat, that is, to install the meter without screw fastening, and to meet good electrical contact at the same time. There are many unsolvable defects in the interference fit connectors of electric energy meters in use today:

[0004] 2. When installing the wiring in the meter box, the existing method inserts the multi-strand wires stripped of the insulation into the terminal holes of each meter position and then tightens the screws. Most of the individual wires will be crushed and broken to affect the conductivity. It is also possible that the manual crimping is not tight, and these hidden dangers will affect and damage the watch box

[0005] 3. When the multi-strand wire is inserted into the wiring hole of the meter position, the root of the copper core wire and the insulation skin will be exposed, which is very easy to be short-circuited by illegal personnel to steal electricity

[0007] To sum up, the above-mentioned technical solutions have hidden dangers of electric leakage during work, and the installation, disassembly and replacement are cumbersome, with low safety and short service life of the product

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