CN2293903Y

CN2293903Y - Power source plug

Info

Publication number: CN2293903Y
Application number: CN 97208844
Authority: CN
Inventors: 徐少华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-21
Filing date: 1997-03-21
Publication date: 1998-10-07
Anticipated expiration: 2007-03-21

Abstract

The utility model relates to a power plug which is composed of a contact piece of a shell. A movable sliding block is arranged in the shell, the contact piece is fixed on the sliding block, a spring which is arranged between the shell and the sliding block exerts force on the sliding block in a back direction, and a locking device which can lock the sliding block and the contact piece in an extending state is arranged on the shell. The sliding block and the contact piece are pushed out by the power plug and are inserted into a socket, when users press (open) the locking device, the contact piece can automatically retract in the shell, and the users need not pull out the plug; accordingly, the utility model has the advantage of convenient operation; the utility model can ensure that the use of electricity is safe.

Description

A kind of attaching plug

The utility model relates to attaching plug.

Existing various attaching plug, its contact and housing are fixing immovable.Pull the plug out of the socket from socket, when plug did not separate as yet fully with the contact of socket, the gap that has produced broad between the housing of plug and socket was enough to put in finger.If finger tip stretches into the danger that electric shock is just arranged in this gap.

The purpose of the utility model is to provide a kind of contact flexible attaching plug of housing relatively, earlier contact is withdrawed from socket before can pulling the plug out of the socket, and is safer to guarantee electricity consumption.

Attaching plug described in the utility model is made up of housing, contact, but the slide block rectilinear motion is arranged in the housing, contact is fixed on the slide block, between housing and the slide block spring is housed, and spring imposes the power of direction of retreat to slide block and contact, and the locking device that slide block and contact can be locked in the state of stretching out is housed on the housing.

Attaching plug described in the utility model, contact are fixed on the slide block that can move forward and backward, promptly contact relatively housing stretch out or withdraw, when contact be in the state of stretching out can be by locking device with slide block locking to be used for inserting socket.When opening locking device, according to spring force slide block and contact are passed backward, contact had not withdrawed from socket and breaks away from and to electrically contact when then the housing of plug, socket separated as yet.Thereby described attaching plug needn't pull out when separating with socket, makes it to be in open mode as long as press locking device, and plug just separates automatically with socket, and is easy to use and can guarantee that electricity consumption is safer.

The cutaway view of a kind of attaching plug of Fig. 1;

Fig. 2 is that the contact of Fig. 1 plug stretches out state;

The cutaway view of a kind of attaching plug of Fig. 3;

The cutaway view of a kind of attaching plug of Fig. 4;

Fig. 5 is that the contact of Fig. 4 plug stretches out state;

Fig. 6 is the B-B partial sectional view of Fig. 4.

Embodiment is just like Fig. 1,2

Have slide block 3 removable in the housing 1, contact 2 is fixed on the slide block and moves jointly with it.Stretch out outside the housing rear end of slide block 3, there are 4 pairs of slide blocks of spring to impose the power of direction of retreat between slide block 3 and the housing 1, but locking device A is the pressing plate 5 at the hinged pressed slider 3 in housing rear end, end in contact behind one side convex shoulder 5a of pressing plate and the slide block, another then convex shoulder 5b contact the concave station 6a that has the convex shoulder 5b that can make pressing plate 5 to subside on the button 6 with the button 6 that resets by spring 7.Shown in Figure 1 is that the convex shoulder 5b of pressing plate is absorbed among the concave station 6a, removes the restriction of convex shoulder 5a to slide block 3, behind the slide block in the shipper pole movable contact spring 2 withdrawal housings; Figure 2 shows that to promote slide block 3 forward, 7 pairs of buttons 6 of spring are executed reset force, and button is stirred pressing plate 5, make its convex shoulder 5a pressed slider 3 location, and promptly contact 2 stretches out.

Embodiment two is as Fig. 3

Locking device A is equipped with the button 6 that spring 7 resets in housing 1 both sides, and there is inside hook 8 slide block 3 rear ends, the shrinkage pool 6b that button 6 rear portions have the hook 8 that can make the slide block rear end to snap in.To button 6 application of forces, the mobile slide block that makes of button breaks off relations with it by normal direction shown in Figure 3, according to moving behind the spring 4 power slide blocks 3, makes contact 2 withdrawals.All the other are identical with embodiment one.

Embodiment three is as Fig. 4-6

Locking device A is the lock 9 that rotation is housed in the housing 1, there is the inner chamber 11 of hollow slide block 3 rear ends, inner chamber 11 displacement to axial of lock 9 and slide block, the spring 4 of dress is pressed on lock 9 one ends on the front panel of housing and can not moves axially between housing 1 and the slide block 3, the outstanding respectively a plurality of ratchet 9a in lock 9 two ends, and the crown of an end aligns at the bottom of the tooth of the other end, the outstanding ratchet position of lock 9 rear ends has a plurality of (present embodiment is four) axial groove 10, the protruding key 12 identical with groove quantity arranged in the inner chamber 11 of slide block 3, the two ends of protruding key are cone-shaped, and all the other are identical with embodiment one.Fig. 5 is slide block 3 and contact 2 exit status, promote slide block forward from the slide block rear end, the protruding key 12 of slide block inner chamber is in the position of groove 10, and slide block can move forward smoothly, touches the ratchet 9a of lock 9 front ends when the pointed cone front end of protruding key 12, to stir lock 9 and rotate a tooth position, remove the thrust of slide block rear end, according to spring 4 power slide blocks with after move because lock has rotated a tooth position, then the protruding key 12 of slide block inner chamber back rectified at the bottom of the tooth snap in lock 9 rear ends and to limit slide block not removable, i.e. locking.As Fig. 6 state.From the slide block rear portion application of force, protruding key is stirred lock again and is rotated a tooth position, makes protruding key be in another groove 10 positions again, moves after smoothly according to the spring force slide block after the thrust at releasing slide block rear portion, makes in the contact 2 withdrawal housings.

Claims

1, a kind of attaching plug, form by housing (1), contact (2), it is characterized in that, slide block (3) is arranged but rectilinear motion in the housing, contact (2) is fixed on the slide block (3), between housing (1) and the slide block (3) spring (4) is housed, spring (4) imposes the power of direction of retreat to slide block (3) and contact (2), and the locking device (A) that slide block (3) and contact (4) can be locked in the state of stretching out is housed on the housing (1).

2, by the described attaching plug of claim 1, it is characterized in that, locking device (A) is at housing (1) but the pressing plate (5) of the hinged pressed slider in rear end (3), the convex shoulder (5a) of pressing plate one side and slide block (3) back end in contact, the convex shoulder of opposite side (5b) contacts with the button (6) that is resetted by spring (7), and the concave station (6a) that pressing plate convex shoulder (5b) is subside is arranged on the button (6).

3, by the described attaching plug of claim 1, it is characterized in that locking device (A) is that the button (6) that is resetted by spring (7) is equipped with in housing (1) both sides, slide block (3) rear end has inside hook (8) can snap in the shrinkage pool (6b) at button (6) rear portion.

4, by the described attaching plug of claim 1, it is characterized in that, locking device (A) is that rotating lock (9) is housed in the housing (1), there is the inner chamber (11) of hollow slide block (3) rear end, inner chamber (11) displacement to axial of lock (9) and slide block, spring (4) between housing (1) and the slide block (3) is pressed on lock (9) one ends on the front panel of housing and can not moves axially, the outstanding respectively a plurality of ratchets (9a) in lock (9) two ends, and the crown of an end aligns at the bottom of another end tooth, outstanding ratchet position, lock (9) rear end has a plurality of axial grooves (10), the protruding key (12) identical with groove (10) quantity arranged in the inner chamber of slide block (11), and the two ends of protruding key are cone-shaped.