CN2164125Y - Safety plug - Google Patents

Abstract

The utility model relates to a safety plug which is composed of an insulator and an electric conduction splicing sheet (pole), wherein the insulator is provided with a groove. An insulating cover is arranged on an opening of the groove, and contacts which are respectively connected to a live wire electric conduction splicing sheet and corresponding output wires are arranged in the groove. A fuse or a fuse tube can be arranged in the middle of the two contacts. A non-live wire electric conduction splicing sheet (pole) can be directly connected with the corresponding output power leads. The safety plug adopting the structure can carry out overload protection for an electric-consuming branch circuit which is output by the plug, and accidents caused by the overload or aged leakage of branch lines can be efficaciously prevented. Because the fuse or the fuse tube is directly arranged in the plug, the fuse or the fuse tube can be conveniently and rapidly changed.

Description

Safety plug

The utility model relates to a kind of attaching plug, especially relates to a kind of attaching plug that prevents the current overload function that has.

At present, though attaching plug commonly used has nothing in common with each other, they are connected to the transmission line end, just directly touch charged contact in the socket by the conduction insert-connecting plate (post) on the plug, give load appliance, the function of no overload protection with electric power transfer.And general overload protection arrangement; as overcurrent protector or fuse; often only be mounted in the input of main circuit; the protective device of She Zhiing in such a way; in most cases; can both play safety effect; but a certain when main circuit does not transship by the plug output obvious excess load of branch road; often can not in time cut off the electricity supply; even the electrical equipment on some branch road is equipped with separately independently fuse, also can not prevent the accident that causes because of factors such as branch road circuit route selection improper (route selection is meticulous) or aging circuit electric leakages.

The purpose of this utility model is, designs a kind of safety plug that can realize overload protection to the electricity consumption branch road of exporting by plug.

The purpose of this utility model is achieved in that a kind of safety plug, form by insulator and conduction plug connector, on insulator, be provided with groove, two not connected contacts are arranged in the groove, wherein a contact and live wire conduction plug connector communicates, and another contact communicates with corresponding out-put supply line, between two contacts fuse is housed, the groove mouth is provided with insulating lid, and the conduction insert-connecting plate of non-live wire can directly join with corresponding out-put supply line.

This safety plug, two contacts in its groove can be made up of the electrically conductive elastic clip, can the installation insurance fiber tube on the two electrically conductive elastic clips.

Advantage of the present utility model is: after having set up overload protection function on the common power plug; can be to implementing overload protection by the electricity consumption branch road of plug output; prevent accident effectively because of branch road circuit overload or tracking initiation; improved fail safe; simultaneously; in plug, change fuse, particularly cartridge fuse and also have convenient advantage rapidly.

Fig. 1 is the combination schematic diagram of the utility model embodiment;

Fig. 2 is a present embodiment A-A face cutaway view.

Below in conjunction with accompanying drawing the utility model embodiment is further described.

By Fig. 1, Fig. 2 as seen, insulator (1) is provided with conduction plug connector (2) and groove (7), be provided with two contacts (3) and (4) in the groove (7), wherein, contact (3) links to each other with a plug connector (2), contact (4) links to each other with corresponding out-put supply line (5), two contacts (3), (4) but between installation insurance silk (6), on groove (7) mouth, be provided with insulation cover plate (8).For guaranteeing safety, fuse (6) should be arranged on conduction plug connector one side that contacts with the socket live wire, and other conduction plug connectors of non-live wire can directly join with corresponding out-put supply line.

In the present embodiment, be based on two core plugs, its conductive contact piece (2) is selected slab organization for use, the electrically conductive elastic clip is all adopted in contact (3) in the groove (7), (4), fuse (6) is selected cartridge fuse for use, for making insulation cover plate (8) can be placed on groove (7) oral area reliably, be provided with buckle card (81) on the insulation cover plate and on groove (7) mouth, be provided with slotted eye (71), topped on groove (7) mouth the time when insulation cover plate (8), slotted eye (71) and buckle card (81) will be fixed.

Using method of the present utility model and common power plug and indistinction, for guaranteeing to contact with the live wire contact in the socket with the conduction plug connector that fuse (6) communicates, when using two core plugs, preferably can differentiate the position of firewire jack in the two core sockets earlier.

Claims (2)

1, a kind of safety plug, form by insulator, conduction plug connector, it is characterized in that: insulator is provided with groove, be provided with two not connected contacts in the groove, wherein a contact and live wire conduction plug connector joins, another contact joins with corresponding out-put supply line, can lay fuse between two contacts, and the groove mouth is provided with insulating lid.

2, safety plug according to claim 1 is characterized in that: two contacts in the groove can adopt the electrically conductive elastic clip, can lay cartridge fuse in the two electrically conductive elastic clips.

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