CN2450806Y

CN2450806Y - Safety socket capable of autmatic single phase cutting off

Info

Publication number: CN2450806Y
Application number: CN 00258085
Authority: CN
Inventors: 林谋忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-27
Filing date: 2000-10-27
Publication date: 2001-09-26
Anticipated expiration: 2010-10-27

Abstract

The utility model discloses a safety socket capable of automatic single-phase cutting off. A contact switch capable of self-returning is arranged in a socket body (1). When the socket is not used, the two contacts of the self-returning contact switch are separated. An external live wire power supply can not be communicated with a live wire sheet metal directly. Only a zero wire and a grounding wire of the sheet metal in the socket are connected with an external zero wire and a grounding wire. The switch knob of the self-returning contact switch is a circular aperture (3) (8) passing through a socket casing (1). Only when the utility model is used and a plug is inserted into the socket, the self-returning contact switch can be opened by utilizing the plug pressure, ensuring safe use of the socket. Therefore, the utility model has unique security protection performance.

Description

The safety socket of the single-phase automatic disconnection of a kind of energy

The utility model relates to a kind of safety socket that can cut off or open socket the inside one live wire conductive metal sheet power supply automatically.

Daily socket commonly used has a variety of at present; function, structure that all kinds of in fact socket manufacturer production are made are all just the same; be that existing new product has changed appearance design; or on socket, add manual switch, power supply indicator and a voltmeter; usually when the manual switch socket is equipped with in use, forgets in use through regular meeting and to open manual switch or can forget again when not using and close manual switch.When not having the socket of manual switch in use; in the time of when using high power electrical equipment, can occurring the plug and socket contact usually; the danger that gives off sparks; the general long-time use of socket plug and socket all can occur and become flexible and loose contact; make the ambroin of electric wire heating fusing electric wire; and cause the power supply short circuit phenomenon, and the accident that fire that is caused by this phenomenon and people get an electric shock is a lot, and the economic loss that causes is unable to estimate.Child plays metallic conduction object (as iron wire, key etc.), also can often cause this type objects insertion socket the danger of electric shock.

The purpose of this utility model provides a kind of when not using socket, and the live wire sheet metal in the socket is uncharged, and the live wire sheet metal just has the socket that electric current passes through when having only the plug of insertion to use.

For achieving the above object, the technical solution of the utility model is: each of this jack housing is organized in the middle of two hole sockets or the three hole sockets or the small sircle hole of 2.5 to 3.5 millimeters of diameters is arranged near the socket edge, a self-return contact switch is housed in the socket, self-return contact switch handle is to stretch out outer about 3 millimeters of socket by small sircle hole, the live wire of extraneous inlet wire is the front end that is connected the self-return contact switch, self-return contact switch rear end is to be connected on the sheet metal of socket, two contacts during self-return contact switch return in the switch separate, making live wire connect end does not communicate with the sheet metal of socket live wire, extraneous zero line or earth connection are the same with existing socket, are directly to be connected on the relative sheet metal of socket.

After adopting the socket of above-mentioned utility model, when using this socket, as long as during with plug insertion socket, pressure by plug flattens the self-return contact switch handle that stretches out outside the socket, two contacts of self-return contact switch are inhaled mutually, connect extraneous live wire power supply and communicate, so just reach application target with socket live wire sheet metal.

When not using this socket, the self-return contact switch handle that pulls the plug out of the socket will stretch out jack housing by self-return, two contacts of self-return contact switch will separate simultaneously, one live wire sheet metal of live wire and socket is opened circuit, so staff inserts in two jacks of socket simultaneously by metals such as iron wires, does not also have the danger of electric shock.

This socket makes the sheet metal of plug and socket be adjacent to back self-return contact switch ability energized because of inserting plug earlier, so plug does not have the danger that sparkles when contacting with socket when using high power electrical equipment.Use for a long time as socket, the sheet metal of socket and plug have loosening when causing loose contact, as long as one lets go when using, because the loosening self-return shift bar of cannot keeping under control of plug, can not open the self-return switch equally and do not reach application target, just can not make electric wire heating fusing ambroin because of loose contact yet, make short circuit cause the danger that fire or people get an electric shock, just can use safely after only taking the jack housing maintenance apart, avoid existing socket as long as reluctantly can be with cause adverse consequences with regard to not going maintenance.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is the outward appearance overall pattern of the utility model safety socket

Fig. 2 is the line map of the utility model safety socket when not using

Fig. 3 is the utility model safety socket line map in use

The utility model safety socket has a small sircle hole (3) (8) as shown in Figure 1 in the middle of every group two hole socket (2) (7) or the three hole sockets (4) (5) (6).A self-return contact switch (13) is equipped with in the socket the inside as shown in Figure 2, the self-return contact switch is connected the live wire power supply and connects between the sheet metal (10) of end (11) and socket, the shift bar of self-return contact switch (12) stretches out about 2 to 3 millimeters of small sircle hole (3) (8) outside of jack housing, when not using this socket, the self-return contact switch is to be in the return state always, two contacts of contact switch at this moment separate, in other words live wire connect end (11) power supply and socket sheet metal (10) is cold, extraneous zero line is directly to be connected on the relative sheet metal of socket with earth connection.

When using this safety socket, when plug is correctly inserted socket, can be as shown in Figure 3, because the pressure of plug insertion socket, self-return contact switch handle (12) is depressed and put down in jack housing (1), at this moment two contacts of self-return contact switch (13) will be inhaled mutually, and extraneous live wire connects end (11) power supply and just communicates with socket sheet metal (10), so just reaches the purpose of safe handling.

Claims

1, a kind of safety socket of single-phase automatic disconnection, it comprises a conductive metal sheet (9) (10) (16) and a self-return contact switch (13) in a shell (1), the shell, it is characterized in that: each of this jack housing is organized in the middle of two hole sockets or the three hole sockets or the small sircle hole (3) (8) of 2.5 to 3.5 millimeters of diameters is arranged near the socket edge.

2, safety socket according to claim 1, it is characterized in that: a self-return contact switch (13) all is equipped with in every group of socket the inside, and one can be opened the shift bar of self-return contact switch by shift bar, and each self-return contact switch handle (12) all pass-out small sircle hole (3) (8) stretches out 2 to 3 millimeters on shell.

3, safety socket according to claim 1 and 2, it is characterized in that: when this socket is installed, live wire is not directly connected on the interior conductive metal sheet (10) of socket, the live wire that should be connected self-return contact switch front end connects on the end (11), and the rear end of self-return contact switch links to each other with live wire sheet metal (10).

4, according to claim 2 or 3 described safety sockets, it is characterized in that: when not using this socket, self-return contact switch handle (12) all stretches out small sircle hole (3) (8) outside, at this moment self-return contact switch will cut off live wire and connect electric current between end (11) and socket live wire conductive metal sheet (10), and the live wire sheet metal of this socket is not charged when using this socket.

5, safety socket according to claim 4, it is characterized in that: this socket is when inserting the plug use, plug will be depressed and puts down in jack housing (1) stretching out the outer self-return contact switch handle (12) of small sircle hole (3) (8), at this moment just opened self-return contact switch (13), made live wire connect end (11) and be communicated with socket live wire conductive metal sheet (10) and reach application target.

6, according to the described safety socket of above claim, it is characterized in that: one of this socket totally also can produce long, square, the round porous socket of outward appearance.