CN2170587Y

CN2170587Y - Fall off prevention apparatus for plug

Info

Publication number: CN2170587Y
Application number: CN 93237306
Authority: CN
Inventors: 林东明
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-22
Filing date: 1993-07-22
Publication date: 1994-06-29
Anticipated expiration: 2003-07-22

Abstract

The utility model relates to a falling off prevention device for a plug. Positioning convex strips are correspondingly arranged on cover bodies of both sides of a jack in a power supply socket. Sliding grooves are correspondingly arranged on one side which is opposite to each positioning convex strip, and recesses are correspondingly arranged in the sliding grooves of the two positioning convex strips. Fastening sheets form an 'n' shape, and both sides of the opening end of each of the fastening sheets are provided with convex blocks. The outer sides of the fastening sheets can be slid in the sliding grooves on the positioned convex strips, and can be positioned by the convex blocks and the recesses. The inner sides of the fastening sheets are inserted on the plug which is plugged in the socket. Thereby, the loosening and the dropping of the plug are effectively prevented. The utility model is a safe and convenient falling off prevention device for a plug.

Description

Fall off prevention apparatus for plug

The utility model relates to a kind of preventing plug from dropping device, is particularly useful for preventing that attaching plug from deviating from socket.

Development along with society, the electric injection All Around The World that is provided with, people do not contact electrical equipment all the time, but the plug of electrical equipment is easily deviate from socket sometimes, this has become high-grade power consumption equipment such as computer, testers etc. are big to be avoided, and at present, prevents that attaching plug from deviating from, the general method that adopts is: the contact copper sheet in the supply socket is made alloy material, make it have certain elasticity, like this, on the one hand contact-making surface is reliably contacted, increase the friction of contact-making surface simultaneously, prevent that plug from deviating from, though this mode is simple, use a period of time after, the elastic force of alloy copper sheet can weaken gradually, can't prevent that the most at last plug from deviating from from socket.Another kind method is to adopt cable joint, that is: fixedly install an external screw thread on every side in supply socket, and a movable nut that has internal thread that matches with the socket external screw thread is set on attaching plug, after plugging in, by tightening nut plugs and sockets is compressed, though this mode is reliable, its versatility is poor, and each dismounting all needs turn activity nut, and is very inconvenient.

The purpose of this utility model is to design a kind of novel preventing plug from dropping device, replaces existing preventing plug from dropping mechanism.

The purpose of this utility model is achieved in that a kind of preventing plug from dropping device, form by the socket and the snap-latch piece that on receptacle cover plate, are provided with the prominent bar in location, the prominent bar in location is arranged on the jack both sides, its relative side correspondence is provided with chute, and corresponding points are preset depression in the chute front and back end, the snap-latch piece that matches with it is " ㄇ " font, " protruding " piece that " depression " in corresponding setting in snap-latch piece beginnings two outside and the chute matches; Can slide in chute in snap-latch piece two outsides, and by projection and depression location, two inboards are embedded on the plug that inserts socket.

Advantage of the present utility model is: under the effect of prominent bar in location and snap-latch piece, the plug that inserts socket can not get loose and drop, its easy to operate and highly versatile, particularly bar and snap-latch piece tightly are surrounded in it plug owing to dash forward in the location, even plug is pegged graft and is not exposed to outside the socket as electrified body, can not make conductor fall into and touch exposed electrified body on the plug yet, thereby avoid electric shock accidents.

Fig. 1 is a schematic diagram of the present utility model;

Fig. 2 is a working state schematic representation of the present utility model;

Fig. 3 is the utility model assembled state vertical view.

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

As seen from Figure 1, this reality and new embodiment mainly are made up of lid (1) and snap-latch piece (2), lid (1) is provided with supply socket (6), the jack both sides correspondence that goes up supply socket (6) at lid (1) is provided with the prominent bar (3) in location, the prominent bar (3) in location can with lid (1) one-shot forming, also can be fixed on the lid (1) by securing member, the prominent relative side correspondence of bar (3) is provided with chute (4) in two location, and depression (41) is set in chute front and back end correspondence, snap-latch piece (2) is one " ㄇ " font, the projection (21) that depression (41) in its corresponding setting in openend outside and chute (4) matches, and edge is established one and is pushed away body (22) thereon, so that promote snap-latch piece (2), can slide in the chute (4) on the prominent bar (3) in location in the outside of snap-latch piece (2), and realize the location by projection (21) and depression (41).

In Fig. 2, the left side is in the time of need being fixed in plug in the socket, snap-latch piece (2) and the situation that cooperates of locating prominent bar (3), at this moment, the projection (21) of snap-latch piece (2) cooperates the location with the depression (41) of chute (4) lower end, the right side is for need pull the plug out of the socket the time, and the projection (21) on the snap-latch piece (2) cooperates the situation of locating with the depression (41) of chute (4) upper end.

As Fig. 2, shown in Figure 3, during use, plug (5) can be inserted in the supply socket (6), again snap-latch piece (2) is pushed and make its inboard periphery that embeds plug (5), then plug (5) is positioned on the socket (6), in the time of need pulling up plug (5), push snap-latch piece (2) earlier open, just can make attaching plug (5) break away from socket (6) then.

Claims

1, a kind of preventing plug from dropping device is characterized in that:

A, correspondence is provided with the prominent bar in location on jack two side cover plates of supply socket, and prominent bar opposed inside correspondence is provided with chute, and correspondence is provided with depression in the chute of the prominent bar in two location;

B, snap-latch piece are " ㄇ " font, the corresponding projection that matches with the chute pocket that is provided with in its openend two outsides;

Can slide in chute in c, the snap-latch piece outside, and realize the location by projection and depression, and its inboard can be embedded on the plug that inserts socket.

2, preventing plug from dropping device according to claim 1 is characterized in that: the prominent bar in the location on the power supply cover plate can with the socket cover once-forming, or be fixedly arranged on the cover plate by securing member.