CN1195212A

CN1195212A - Plug

Info

Publication number: CN1195212A
Application number: CN98100822A
Authority: CN
Inventors: 园本一见
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-31
Filing date: 1998-02-16
Publication date: 1998-10-07
Also published as: EP0869582A3; KR19980079936A; EP0869582A2; CA2227455A1

Abstract

The plug includes a plug terminal to be inserted into and connected with a socket, an anti-disconnection member provided to the plug terminal, and a switch mechanism for switching over between a first position where the anti-disconnection member is retracted within the plug terminal and a second position where the anti-disconnection member is projected out of the plug terminal.

Description

Plug

The present invention relates to a kind of plug that is connected with socket.

When plug is connected with socket, may occur because plug lead-in wire has been linked with, careless plug such as has been extracted at situation by pin.Once such situation takes place.Promptly produce following point in case such situation takes place, the situation of the electric equipment of object television set and video tape recorder and such memory timer for example is because plug is pulled out, the time set of timer is not normal; In the tank of the tropical fish of being with temperature adjustment device,, will cause tropical fish death owing to can not carry out temperature control; In the occasion of computer, will the data in the memory be damaged etc.

For handling such problem, be provided with the electric equipment that tackles the power failure countermeasure of stand-by power supply etc., even and plug pulled out, but power supply can not cut off suddenly.

But, be to spend suitable cost owing to adopt this power failure way that tackles, the electric equipment that is only limited to high price that can adopt in practice.Tackle the electrical equipment that relates to daily frequent use at present and still do not have countermeasure.

In view of the foregoing, the purpose of this invention is to provide a kind of plug of pulling out of from socket, being not easy.

For achieving the above object, the invention provides a kind of plug, it has the plug terminal that inserts socket, it is characterized in that it being to be provided with on this plug terminal to prevent releasing part, and make this primary importance that prevents that releasing part from depositing in plug terminal and by the switching device shifter that carries out switching position between the outstanding second place of plug terminal.

Thus, prevent that usually releasing part is stored the inside at plug terminal, but when plug is connected to socket, will prevent that by switching device shifter releasing part from switching to from the outstanding position of plug terminal.Like this, even from socket, pull out plug, owing to prevent that releasing part is outstanding from plug terminal, so can not plug be pulled out.

Desirable formation is that the described second place can be provided with many places.

This structure can be used on plug terminal, and the above prevents that releasing part from can realize around the simple structure that bolster rotates.

Thus, prevent that the extrusion position of releasing part from can set many places, therefore the interior shape of the corresponding various sockets of energy is easy to use.

And when described plug terminal became a pair of the setting, the described releasing part that prevents also became a pair of setting accordingly with terminal, and described switching device shifter can have and switch the described a pair of shared driver part that prevents releasing part simultaneously.By this structure, so because driving a pair of releasing part that prevents with shared driver part compares with the product of respectively driving type, the quantity of parts can reduce, and cost also can reduce.

Plug of the present invention can be used all types of plugs, and is not defined for specific appliance plug.

In addition, as desirable embodiment of the present invention, have from the outstanding direction of described plug terminal make described prevent that releasing part from leaning on by upper-part; Prevent to constitute on the releasing part guiding parts described, this guiding parts prevents that by described making by active force by going up of upper-part releasing part from moving from the direction of described extrusion position to described deposit position in the process of plug insertion socket.After plug insertion socket, the described releasing part that prevents is switched on the described extrusion position.

By this structure, by make by upper-part prevent releasing part at ordinary times from plug terminal to outstanding direction by last, plug one inserts socket, then makes by guide part and prevents that releasing part from being moved from the direction of extrusion position to deposit position forcibly.And then, after plug insertion socket,, prevent that releasing part from returning to extrusion position from deposit position owing to lean on the power of leaning on that goes up of upper-part.

Therefore, with the ordinary plug with the function that prevents to come off is not identical, can be inserted in the socket by operation.Its result, the plug that can provide a kind of band easy to use to prevent to come off function preferably.

Various forms can be arranged as described by upper-part, be example with the wire rod, though as with wire rod, process also simply, particularly small space arranged the object plug terminal, also can easily dispose.

As embodiments of the invention, when described plug terminal becomes a pair of the setting, describedly prevent the also a pair of correspondingly setting of releasing part, a pair ofly prevent that the mutual reverse formation of projected direction of releasing part from being desirable with described.

As is generally known plug inserts in socket while rotating, when in closing socket, inserting plug, as prevent that the projected direction of releasing part is identical, then do not note making plug to come off.

But, if prevent releasing part projected direction be in reverse, as long as any one prevents that releasing part from tangling reliably, even as above-mentioned special socket, also can bring into play its effect.

As the described embodiment that prevents releasing part, can enumerate to be arranged on fulcrum on the described plug terminal as the rotating bar in center.When pulling up plug from socket, the functional unit of operation setting on bayonet cap makes and prevents that releasing part from moving to deposit position from extrusion position, in this case, is on the plug terminal as rotating fulcrum, and good operation feeling can be arranged.

Relevant other feature and advantage of the present invention can be from the embodiment explanation with following accompanying drawing, will be clearer.

Below accompanying drawing is done simple declaration.

Fig. 1 is the overall stereogram of the plug of relevant embodiment 1 [wherein (a) illustrates the state that prevents that defected rod is stored, and (b) illustrates to prevent that defected rod from giving prominence to state].

Fig. 2 is the vertical view of the switching mechanism of relevant embodiment 1.

Fig. 3 is the end view of relevant embodiment 1 switching device shifter.

Fig. 4 is that the plug of relevant embodiment 1 is connected to the state diagram in the socket.

Fig. 5 is that the plug of relevant embodiment 1 is connected to the state diagram in the socket.

Fig. 6 is the exploded perspective view of relevant embodiment 1 plug terminal.

Fig. 7 is the stereogram of relevant embodiment 2 plugs.

Fig. 8 is the end view of relevant embodiment 2 switching device shifters.

Fig. 9 is the vertical view of relevant embodiment 2 switching device shifters.

Figure 10 is the overall stereogram of relevant embodiment 3 plugs [wherein (a) illustrates the state that prevents that defected rod is stored, and the state that prevents that defected rod is outstanding (b) is shown].

Figure 11 is the profile [wherein (a) illustrates the state that button prevents that defected rod from depositing, and the state that prevents that defected rod from stretching out (b) is shown] of relevant embodiment 3 switching device shifters.

Figure 12 is the exploded perspective view of relevant embodiment 3 plug terminals.

Figure 13 illustrates the procedure chart of relevant embodiment 3 plug insertion sockets.

Embodiment 1

According to Fig. 1-Fig. 4 desirable embodiment 1 of the present invention is described below.Fig. 1 is the overall stereogram of plug, (a) state that prevents that defected rod is stored is shown, and the state that prevents that defected rod is outstanding (b) is shown.Fig. 2 is the vertical view of switching mechanism.Fig. 3 is the cutaway view of switching mechanism.Fig. 4 and Fig. 5 illustrate plug and are connected state in the socket.Fig. 6 is the exploded perspective view of plug terminal.

Plug 1 has a pair of

plug terminal

2a, 2b, and

cover

3,4 is the screw 5 and the lead 6 of combining

cover parts

3 and 4.

As shown in Figure 6, plug terminal 2 is made of outside parts 20,21 and the intermediate member 22 that is positioned at these outside parts 20,21 centre positions, forms otch 22a on intermediate member 22, and forms the space A that the mechanism that prevents to come off is installed.These outside parts 20,21 and intermediate members 22 can combine it with suitable method such as welding and bonding.

On the A of space preventing that defected rod (preventing releasing part) 11 is arranged to rotate around axle 12.Axle 12 usefulness are welded into method such as riveted joint and are installed on the relative outside parts 20,21.Prevent defected rod 11 be provided with socket inner contact to have prevent the come off chevron shaped tooth 11a of portion of function of plug, and and the meshing 11b of gear teeth portion of tooth bar 10a of driver part 10.The shape of the chevron shaped tooth 11a of portion becomes the 45 degree angles of thread as shown in Figure 3.

In addition, on cover 3, be to make the action bars 8 that prevents defected rod 11 actions be arranged to slide portable along Y-Y axis among Fig. 2 by driver part 10.Action bars 8 is provided with by people's manual manipulation and operating portion 8a and the 8b of pushing portion that driver part 10 is driven.Spring 9 above shown in Figure 2 on lean on action bars 8, an end of spring 9 is placed on the linking part 10b of driver part 10, the other end is placed on the fixed part 3a that is arranged on the cover 3.

Driver part 10 corresponding a pair of

plug terminal

2a, 2b are provided with a pair of tooth-strip part 10a, for connecting this tooth-strip part 10a connecting portion 10b are set.Thus, by making driver part 10 upwards driving below shown in Figure 2, can drive pair of right and left simultaneously and prevent defected rod 11.Driver part 10 constitutes with insulators such as synthetic resin for preventing short circuit.

Action bars 8 can rotate along the Y-Y axis of Fig. 2, and when operating operation bar 8, operating portion 8a dominated by hand makes its rotation, can push down operating portion 8a to direction then.On cover 3, form the groove 7 of guidance action bars 8 usefulness.In this groove 7, be provided with a plurality of maintaining part 7a, the 7b, the 7c that keep operating portion 8a.Keep all can changing the amount of spin that prevents defected rod 11 by arbitrary maintaining

part

7a, 7b, 7c, promptly come from the overhang of plug terminal 2.

Operating portion 8a remains on the position of maintaining part 7a, is equivalent to prevent that defected rod 11 is stored the primary importance in the inside of plug terminal 2.Operating portion 8a remains on the position of maintaining

part

7b, 7c, is equivalent to the second place that prevents that defected rod 11 from giving prominence to from plug terminal 2.

Action specification

Action with regard to relevant embodiment 1 plug is explained below.

At first, plug 1 inserts socket 13.Then, operating operation bar 8 makes operating portion 8a remain on arbitrary position of maintaining part 7b, 7c.The internal structure of socket 13 is depended in each position that should keep, and operating portion 8a is remained under the state of maintaining part 7c, as shown in Figure 4, prevents that defected rod 11 from rotating 90 degree approximately, and the angle that plug terminal 2 forms becomes 90 degree approximately.

From socket 13, pulling the plug out of the socket 1 o'clock, make prevent defected rod 11 from Fig. 4 to Fig. 3 recovering state.That is to say that rotating operation bar 8 is deviate from this action bars 8a from maintaining part 7c.Like this, utilize the elastic force of spring 9, the position of maintaining part 7a is got back in the position of operating portion 8a, and action bars 8 is restored.And, should make operating portion 8a be stored in maintaining part 7a, but 8 rotations of operating operation bar get final product.

Embodiment 2

According to Fig. 7-Fig. 9 the desirable embodiment of the present invention 2 is described below.Fig. 7 is the stereogram of the plug of embodiment 2, and wherein (a) is the figure that sees from the plug terminal side, (b) is the figure that sees from the upper side of case member.Fig. 8 is the end view of the switching device shifter of relevant embodiment 2, and Fig. 9 is the vertical view of switching device shifter.Parts with embodiment 1 identical function are represented with identical sequence number.

This plug 1, its outward appearance is different with embodiment 1, is that lead 6 is vertical with 2 one-tenth of plug terminals, and thus, the shape of

cover

3,4 is also different.As Fig. 8 and shown in Figure 9, on cover 3, constitute and run through the hole 3a that operates screw rod 14.The screw rod 14b of operation screw rod 14 is threaded with the nut that forms on the connecting portion 10b of driver part 10.

Behind the plug insertion socket, rotating operation screw rod 14, make driver part 10 prevent that to moving, making defected rod 11 from being standing shape from plug terminal by threaded function to the left of Fig. 8.When pulling the plug out of the socket from socket 1 the time, loose operation screw rod 14 makes and prevents that defected rod 11 is stored in the state of plug terminal 2.

The variation of relevant the foregoing description further, is described.

The number of maintaining part that is arranged on groove 7 is unqualified in the present embodiment.Can suitably increase in case of necessity.

It is chevron shaped to prevent that shape that the defected rod 11 and the Interior bonds of socket 13 are divided also is not limited to, and can adopt any shape that so-called difficulty is extracted function that has.

The formation of embodiment 3

According to Figure 10-Figure 13 the desirable embodiment of the present invention 3 is described below.Figure 10 be the overall stereogram of plug, wherein (a) illustrate to touch the button and 32 make the state that prevents that defected rod from depositing, the state that prevents that defected rod is outstanding (b) is shown.Figure 11 shows that the figure of switching device shifter, (a) profile of illustrating wherein for the state behind the plug insertion socket, what (b) illustrate is the figure in the plug insertion socket process.Figure 12 is the vertical view of plug, and Figure 13 is the exploded perspective view of plug terminal.

Plug 1 is provided with a pair of plug terminal 41,42, and

cover

3,4

cover

3 and 4 screw 5 for linking, lead 6 and have that conduct prevents the releasing part function prevent defected

rod

30,31.

Prevent that defected

rod

30,31 is provided with a pair of plug terminal 41,42 respectively, fully aware of from Figure 10, prevent that defected

rod

30,31 from constituting to become positive and negative relative form from the projected direction of the end face of plug terminal 41,42 simultaneously.

Figure 11 to Figure 13 is the details drawing with switching device shifter of feature of the present invention.And, a pair ofly prevent that the projected direction of defected

rod

30,31 from being opposite direction.So one of them only is described because its basic structure is identical.

Plug terminal 41 is made of the first terminal component parts 43 and the second terminal component parts 43, and both are with welding or suitable method combination such as bonding.Spatial portion 41c is set on the first terminal component parts 43, prevents defected rod 30 and have space by the wire spring 35 of upper-part function as depositing.In addition, on these

component parts

43,44, prevent that for supporting

button shape bolster

41a, 41b that defected rod 30 is rotated from becoming integral body to constitute.It is desirable to the first terminal formation portion material 43 and use die casting, the 44 usefulness punching presses of the second terminal component parts constitute.

About preventing defected rod 30, describe in detail by Figure 11.Prevent that defected rod 30 is provided with: the axis hole 30a that embeds

bolster

41a, 41b; When plug insertion socket, make the guide part 30h that prevents that defected rod 30 from clockwise rotating around

bolster

41a, 41b by the hole portion of socket; Sealed the 30c that behind plug insertion socket, has the function that prevents to come off; The acting surface 30d of wire spring 35 effects; And the button acting surface 30e that is subjected to the pushing effect of button 32.

Because

bolster

41a, 41b are set on the plug terminal 41,42 that leaves from the configuration of button 32, so the operation feeling when good pushing button 32 can be arranged.

Guide part 36b to plug terminal 41 vertically into about 30 °-45 ° inclined plane, when plug insertion socket, forcibly make to prevent that defected rod 30 from rotating.Wire spring 35 desirable cutting off with the such line of piano wire constitute.Circle, rectangle etc. can suitably be selected in the cross section of wire rod.

Button 32 is provided with the 32a of pushing portion that presses with hand push and acts on the pushing seat 32b of the button acting surface 30e that prevents defected rod 30.As shown in figure 12, because the center of button 32 and prevent defected rod 30 dislocation, pushing seat 32b formation ellipticity.In addition as shown in figure 11 because prevent defected

rod

30,31 projected direction mutually relatively, another button 33 also is symmetrical arranged on the contrary.

The action of embodiment 3

Action during below with regard to the plug insertion socket of relevant present embodiment is explained.Shown in Figure 11 (b), with common the same insertion of plug, at the end face in the hole of socket 11, a pair of guide part 30b of defected

rod

30,31 that prevents is depressed during insertion, makes to prevent the anti-mutually and rotate by last power of defected

rod

30,31 and wire spring 35.That is, make and prevent that releasing

part

30,31 from moving from the direction of extrusion position to deposit position.Therefore, need not press

button

32,33 during insertion.

Shown in Figure 11 (a), behind the insertion plug, because guide part 30b is decontroled from end face 11a, the last power effect of leaning on owing to wire spring 35 prevents that defected

rod

30,31 from returning to extrusion position, and a sealed thus 30c is locked together on the inside 11b of socket 11.Its result, plug can not come off from socket 11.

Self-evident, scope of the present invention will be not limited to the structure of described embodiment.And the structure of various embodiment also can be implemented by various combinations in reasonable range.

Claims

A plug, include the plug terminal that inserts socket, it is characterized in that this plug terminal (2a, 2b, what 41,42) go up to be provided with prevents releasing part (11,30,31) and make this prevent that releasing part (11,30,31) is at plug terminal (2a, 2b, 41,42) primary importance of depositing in and by plug terminal (2a, 2b, 41,42) switching device shifter that switches between the Tu Chu second place.
2. plug according to claim 1 is characterized in that the described second place can be provided with formation in many places.
3. plug according to claim 1, when it is characterized in that described plug terminal (2a, 2b) becomes a pair of the setting, described prevent releasing part (11) also with terminal accordingly with a pair of setting, described switching mechanism setting can be switched the described a pair of shared driver part (10) that prevents releasing part (11) simultaneously.
4. plug according to claim 1 is characterized in that (2a, 2b) the above prevents that releasing part (11) from can rotate around bolster at described plug terminal.
5. plug according to claim 1, it is characterized in that being provided with make on the outstanding direction of described plug terminal (41,42) described prevent to lean on the releasing part (30,31) by upper-part (35); At the described releasing part (30 that prevents, 31) constitute guiding parts (30b) on, this guiding parts is in the process of plug insertion socket (11), by described going up by upper-part (35) by active force, make and prevent that releasing part (30,31) from moving from the direction of the described deposit position of described extrusion position; Plug insertion socket (11) afterwards, will prevent that releasing part (30,31) is switched to described extrusion position.
6. plug according to claim 5 is characterized in that described is wire rod by upper-part (35).
7. plug according to claim 5 is when is characterized in that described plug terminal (41,42) becomes a pair of the setting, the described releasing part (30 that prevents, 31) also relatively become a pair of setting with terminal, this a pair of projected direction of releasing part (30,31) that prevents is by constituting inversely mutually.
8. plug according to claim 5 is characterized in that the described releasing part (30,31) that prevents is as the rotating bar in center with the fulcrum that is arranged on plug terminal (41,42).