CN86210312U - Multiple-protective self-closed safety socket - Google Patents

Abstract

The utility model discloses an automatically-closed multi-protection safety socket in which a protection cover plate is arranged. A notch or a convex object on the protection cover plate is engaged with the outer shell of the socket. Small pits and narrow slots can be arranged on the cover plate. The partial surfaces of the protection cover plate can be oblique surfaces. If people do not obey a prescribed procedure to operate or use an object which is not similar to an ordinary plug, the socket can not be inserted. When the automatically-closed multi-protection safety socket is not used, a plug can be extracted, and a resetting device makes the cover plate automatically seal the jack. The utility model has the advantages of simple structure, high reliability, high safety and better effect.

Description

Multiple-protective self-closed safety socket

The utility model is to seal safety socket automatically about multiple insurance.

The jack of at present commercially available supply socket is the power supply contact copper sheet that directly leads in the socket mostly, and child is easy to finger or metal object be inserted and cause getting an electric shock, so is absolutely unsafe.

8 or five years the 8th volume fourth phases of " world inventions " magazine have been reported a kind of anti-electric shock socket.This socket is at socket cover and have on the jack road between the electrolytic copper sheet and respectively be provided with the twice valve, two holes to insert plug simultaneously, could open the second road valve of another side by connecting rod again.Can guess, this socket is owing to have twice valve and connecting rod, so thickness increases more.In addition, if child inserts finger or metal object in two jacks, then valve also can be opened.

Chinese patent application numbers 85201041 has been described a kind of safety power source plug socket, exposes the contact copper sheet with carrying on the end cap and turning an angle during use.But it does not have safeties, and child also can finish this simple motion.In addition, its no auto-reset function is forgotten end cap mentioned and turn an angle if pull out plug and is sealed jack, does not then have the protection against electric shock effect.

Have a class safety socket must use the special plug special supporting with them, the user must change all appliance plugs one by one like this, and is both inconvenient, increases expense again.

Though another kind of safety socket is only inserted object to a certain jack and can't be injected or can not get an electric shock, must insert simultaneously to each jack and could insert, their no recognition functions, as if also inserting to the slotting simultaneously any object of each jack (as iron nail etc.), thereby danger more.

The purpose of this utility model provides a kind ofly uses the multiple insurance of ordinary plug to seal safety socket automatically.It has overcome above-mentioned all shortcomings, and multiple safeties is arranged, and child is very difficult by this multiple insurance.In addition, when pulling out plug, socket aperture can seal automatically.Therefore, this socket is fool proof.

Its solution is:

An insulation insurance shield is set between the power supply of common socket contact copper sheet and socket aperture, makes it close socket aperture.On the edge of shield or plane two (then is three for the single-phase three wire system socket) breach or protrusions are arranged, the protrusion or the breach of equal number are meshed on they and the jack housing, have a spring to make both keep engagement.The optimum position of above-mentioned breach and protrusion is at the shield central point and on the line or extended line of each jack each point.Like this, when only inserting plug simultaneously in each jack, the inside translation of shield could be made whole breach and protrusion break away from engagement, this is the first heavily insurance of this socket.And only insert object in one or two (for the single-phase three wire system socket) jack is to make it all out-of-gear.(breach on the above-mentioned jack housing can be a jack itself).

Two (then is three to the single-phase three wire system socket) holes or disappearance are arranged partly on shield.After shield and jack housing disengaging engagement, also must make both relatively rotate (or moving) certain angle (or position), shield hole or disappearance are partly aimed at socket aperture, expose power supply contact copper sheet, thereby make plug can continue to insert, this is the second heavily insurance of this socket.For finishing relatively rotating or moving between shield and jack housing, can utilize manually, magnetic force drags or above-mentioned dual mode adopts simultaneously.For this reason, but affix handle, magnetisable material or permanent magnet on the shield.When adopting hand-held permanent magnet to drag shield, then insurance is more reliable.Because, just can't drag shield if when not having permanent magnet or permanent magnet not to move by projected route.

Another improvement of this socket is with the face bevel of shield over against each receptacle portion of shell.Like this, after plug made shield and shell break away from engagement, shield can rotate voluntarily or move with respect to shell, exposes power contacting plate.This is a kind of socket of opening automatically with plug.For making the jack sealing tighter, the inclined plane part phase-splitting of shield compensates when adding a projection and resetting in each jack.

On the outside face of shield some insurance small ruts and narrow groove are arranged, this is the retrocession of this socket.Usually, the plug conducting end all is the garden arcuation.When shield rotated or be mobile, this garden arc end was easy to slip over small rut and the narrow groove on the shield.And when using the not similar object of spike, thin slice etc. and ordinary plug conducting end profile; Make shield and jack housing break away from engagement even in each hole, insert simultaneously, also can because of the front end of insert point, thin small rut or the narrow groove of being insured block, causing shield not rotate or to move, thereby insert can't be contacted with power contacting plate.Like this, socket just can identify and the not similar object of ordinary plug conducting end profile.

Reed capsule is housed in socket, this be this socket quadruple insurance when through above-mentioned steps with the plug insertion after, also a permanent magnet must be placed on the socket certain location, the reed capsule junction closure could be made the socket energized.On socket, also can add energising indicating device (light-emitting diode, neon lamp or indicator light), to show the socket energising.

Fuse or protective tube are housed in socket.When using being short-circuited property of the electrical equipment fault of this socket, the unlikely use that influences other electrical equipment.

Outside the socket trip bolt, add the plastic jacket lid, prevent to take apart arbitrarily socket and cause getting an electric shock.

One resetting means is arranged in socket, and when plug was extracted, it made shield get back to initial position, closes socket aperture.This resetting means can be made of a kind of of following parts or several: back-moving spring, weight, magnetisable material or permanent magnet.

When using gravity reduction, the installation position of socket has certain limitation.

Making shield and jack housing keep the spring and the above-mentioned back-moving spring of engagement can be same spring, and magnetisable material that adds on the shield or permanent magnet and above-mentioned weight can be same objects.

According to different needs and product specification, aforesaid number heavily insures and can only adopt wherein several, also can all adopt.The socket profile is circle, rectangle or other shapes.Its quantity is single socket, also multi-gang socket.But its installation form Ming Dynasty style, also dark formula.Its occupation mode is fixed, and is also portable.

Comprehensively described, this socket uses step as follows:

1. insert plug (making shield and shell break away from engagement).

2. rotate or mobile shield (exposing power supply contact copper sheet).

3. continue to insert plug (making plug contact the copper sheet contact with power supply).

4. permanent magnet is placed on the socket ad-hoc location and (makes the closed energized of reed capsule.To the person that do not install the reed capsule, then there is not this step).

One of advantage of this socket is: if use and the not similar object of ordinary plug conducting end profile, even insert simultaneously to each jack, also can't contact copper sheet with power supply and contact.And not as some safety socket, cause with regard to inserting getting an electric shock if insert object simultaneously to each jack.

Another advantage of this socket is to use existing ordinary plug and does not need special special-purpose assorted plug.

The another advantage of this socket is that shield seals socket aperture immediately automatically after pulling out plug.

Compare with existing socket, the insurance of this socket is reliable, safe in utilization.Because it can prevent to get an electric shock effectively, therefore favorable economic benefit and social benefit are arranged.

Accompanying drawing 1～3rd, three embodiment of this socket, wherein accompanying drawing 1 is manually opened, torque spring resets, is with the safety socket of fuse.Accompanying drawing 2 is dark formula safety sockets of magnetic force unlatching, gravity reduction, band fuse, reed capsule and energising indicating device.Accompanying drawing 3 is safety sockets manually opened, that magnetic force (or magnetic force and gravity) resets.Accompanying drawing 4 is to open automatically with plug, the safety socket that torque spring resets.

In each figure.The 1st, jack housing; The 2nd, power supply contact copper sheet; The 3rd, breach; The 4th, protrusion; The 5th, the insurance shield; The 6th, spring; The 7th, trip bolt; The 8th, the plastics cover cap; The 9th, small rut and narrow groove; The 10th, fuse; The 11st, handle; The 12nd, magnetisable material; The 13rd, permanent magnet; The 14th, reed capsule; The 15th, the energising indicating device.The 16th, the inclined-plane; The 17th, projection.

Be reset mode shown in each figure.

Claims (10)

1, a kind of multiple insurance is sealed safety socket automatically and is comprised a shield between power contacting plate and jack, a resetting means that makes shield close jack, it is characterized in that on shield, having and be no less than two breach or protrusion, on shell, there are the protrusion or the breach of equal number to be meshed with them, there is a spring to keep its engagement, on shield, has in addition to be no less than two hole or the disappearance parts that can expose power contacting plate.

2,, it is characterized in that on the shield additional have a kind of of following project or several: handle, magnetisable material, permanent magnet according to the described socket of claim 1.

3,, it is characterized in that shield is the inclined-plane over against the face of each receptacle portion of shell, the inclined plane part phase-splitting compensation of shield when a projection being arranged and resetting in each jack according to the described socket of claim 1.

4,, it is characterized in that on the outside face of shield, some small ruts and narrow groove being arranged according to claim 1 or 2 or 3 described sockets.

5,, it is characterized in that reed capsule is equipped with in inside, switch on indicating device, fuse or protective tube according to claim 1 or 2 or 3 described sockets.

6,, it is characterized in that outside its trip bolt, being added with the plastic jacket lid according to claim 1 or 2 or 3 described sockets.

7,, it is characterized in that resetting means is a kind of of following project or several: spring, weight, magnetisable material, permanent magnet according to the described socket of claim 1.

8, according to the described socket of claim 1, with on the line or extended line of each jack each point, the breach on the jack housing can be a jack itself at the shield central point in the optimum position that it is characterized in that breach on shield and the shell and protrusion.

9, the described socket of claim 1 or claim 7 is characterized in that the spring of being recorded and narrated is a same spring.

10, the described socket of claim 2 or claim 7 is characterized in that the magnetisable material recorded and narrated or permanent magnet and weight are same objects.

Images