CN2549618Y

CN2549618Y - Plug and socket with central locking mechanism

Info

Publication number: CN2549618Y
Application number: CN 02230918
Authority: CN
Inventors: 彭慧军; 王巍; 韩广源; 李维东
Original assignee: 彭慧军
Priority date: 2002-04-10
Filing date: 2002-04-10
Publication date: 2003-05-07
Anticipated expiration: 2012-04-10

Abstract

The utility model provides a plug and socket with a central locking mechanism, belonging to the field o connection component of electric appliance. The center of the plug and socket is provided with a locking component; two sleeved rigidity axial limit cooperative pairs(2, 14 and 13, 19), a limit component(3, 13), and a diameter varying mechanism for locking conical surface slide pairs(2, 3, 13, 19, 21 and 22), and elastic resetting components(8, 12, 17 and 20) for assisting the conversion between locking and releasing. Apart from improving the combination reliability, the utility model has the advantages of compact structure, convenient operation, finished concept, simple product structure, easy production and easy popularization.

Description

The plugs and sockets that has Central locking mechanism

Technical field

The utility model belongs to the circuit coupling components, relates generally to the draw bail of plugs and sockets.

Background technology

The engagement state of the plugs and sockets of known tight device with lock between can the locking-type plug socket guaranteed the positive connection of circuit, avoids bringing influence because of improper disengaging to use.Therefore scheme is just paid close attention to once appearance.For further increase in conjunction with the time lock-out state reliability, improve structure, be necessary to propose new technical scheme.

Summary of the invention

The technical problems to be solved in the utility model is to improve the unfailing performance that connects between plugs and sockets.

The particular content of technical solutions of the utility model is, the plugs and sockets that has Central locking mechanism comprises, support and contain the plug casing and the Socket casing of structure content separately, conduction latch that fixedly links with housing separately and the jack that matches with latch, and conductive component separately, link and interlockable spacing locking mechanism the parts of the above-mentioned parts that are connected and fixed respectively with two housings.Wherein said locking mechanism is positioned at the central part of plugs and sockets latch position, comprises having the rigidity axial limiting matching pair that is formed diameter changing mechanism by conical surface sliding pair.Like this, conical surface sliding pair can reducing, so as to finish conversion between spacing foundation and spacing freeing; Axial stiffness is spacing then to be to realize being located at the spacing possible scheme of central authorities, also can guarantee positive lock; Be positioned at central authorities and then can make compact conformation.Thereby the technical problem that the utility model proposes is resolved.

Diameter changing mechanism described in the utility model contains the limiting component to sliding pair idol part, to set up spacing condition of work in the slip.

Locking mechanism described in the utility model contains the rigidity axial limiting matching pair of two suits, and this is a kind of form of slip axial limiting.

Locking mechanism described in the utility model contains frees spacing drive disk assembly and elastic reseting part thereof, to finish spacing freeing and self the task that resets.

Spacing matching pair described in the utility model contains elastomeric element, can bring convenience to operation.

The utility model is introduced Lock Part at plug and central part of the socket position, and have a rigidity axial limiting matching pair that forms diameter changing mechanism by conical surface sliding pair, also be aided with limiting component to the even part that slides, elastic reseting part, and the spacing matching pair of the rigidity of two suits, make structure very compact, improve in conjunction with reliability, easy to operate.The plan plot exquisiteness, product structure is simple, makes easily, is convenient to promote.Universal component for this basis of plugs and sockets then has more practical significance.

Description of drawings

Accompanying drawing has provided the signal of the utility model example structure.

Fig. 1 is the plug end view drawing;

Fig. 2 is that latch insertion socket, push rod are not pressed into, Figure 1A-A position cutaway view;

Fig. 3 is structural representation, Fig. 2 B-B position cutaway view of push rod jump ring;

Fig. 4 is to be the structural representation of the secondary plug cover core of locking with the lock dog;

Fig. 5 is the C-C cutaway view of Fig. 4;

Fig. 6 is that the A of Fig. 4 is to partial view.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Draw the connotation of numbering representative in the accompanying drawing: frustum 23T type chute in 1 return spring holder, 2 elastic latch hooks, 3 push rod frustum ends, 4 latches, 5 plug end faces, 6 plug body, 7 push rod press spring bases, 8 back-moving springs, 9 push rods, 10 loam cakes, 11 buttons, 12 jump rings, 13 pintle hook locks, 14 ring platforms, 15 socket inner convex platforms, 16 socket panels, 17 back-moving springs, 18 coupler bodies, 19 shoulders, 20 back-moving springs, 21 lock dogs, 22 sockets

First embodiment is the plugs and sockets that is used for GB1002-1996 the two poles of the earth band ground connection, its concrete size 35 * 50 * 62mm, and heavily about 50g sees Fig. 1-3.

This routine plug body 6 is except that being equipped with latch 4 and conductive connection thereof, and the central authorities in its three latches position are shaped on the axis through hole parallel with latch.Have the through hole end section of operative end surface 5 sides of latch at plug, with the pipe end of packing into the cannula-like spring base 1 concordant with the plug end face.The cover pipe orifice is positioned at the end section of end face, is shaped on the less shoulder of endoporus, and as the seat stand of spring, present inner section is shaped on threaded shoulder, and this screw thread and through hole hold the inner hole thread of the push rod press spring base 7 of packing into to link in addition.Dress has the latch hook body 18 that outer shoulder, cannula-like, shoulder external diameter and plug through hole are slidingly matched in the return spring holder 1, be present and the tube wall of latch hook between back-moving spring 17 is housed.Latch hook is positioned at the end section of plug end face to be made, and the termination outer cylinder has shoulder, inner surface for to the diminishing conical surface shape of end face direction, this end section be divided into along the pipe bus separately, each other can mutual limited separation, the latch hook 2 of elasticity flap.Push rod 9 ends are made frustum 3, are loaded on the inner conical surface of latch hook hook end 2; The shoulder 19 in bar stage casing is the conical surface in the distolateral side of bar frustum, and side is the long shoulder of vertical rod in addition; Push rod end section is in addition made the shoulder that cooperates with the inboard back-moving spring 8 of bar.Return spring holder 8 is loaded between push rod return spring holder 7 and the bar, push rod bar length is slightly larger than plug through hole length in through hole both sides, plug through hole stage casing, the slide block of glide direction vertical through hole axis is housed respectively, each slide block again respectively with the opposite side slide block outside slide block link in mode around push rod, the inside jump ring of active force 12 is housed between interior slide block, wedge-like is made in the slide block inboard, can cooperate with the inclined-plane of push rod shoulder, its two outer slide block outer ends are surrounded by button 11, form these routine pintle hook lock 13 push rods and have the rod end of frustum and have the axial distance of inclined-plane shoulder 19 greater than the distance of plug end face to the pintle hook lock inclined-plane.Socket central authorities are shaped on blind hole, and the aperture is identical with plug end face spring base 1, and the peritreme inner surface can cooperate with the outer shoulder after latch hook opens for ring platform 14, makes the spacing substantially pair of this example.Blind hole bottom surface central authorities are shaped on boss 15, and the distance of the inboard loop of its end face and blind hole is slightly larger than the axial distance of latch hook 2 shoulders and hook end.It more than is the description of this routine primary structure.

During work, behind the plug insertion socket, press lower push rod, drive the latch hook body by its frustum and compress its back-moving spring, stretch out from the plug end face, enter the blind hole of socket central authorities, after surpassing the blind hole peritreme, the spacing of latch hook periphery is disengaged, and axially stopped by raised head face, continue descending push rod awl end then force flexible flap latch hook to around displacement, form the spacing substantially pair of this example with ring platform corresponding site in the hole.Around here, push rod is in descending process, at first push the inclined-plane of pintle hook lock 13 open by the inclined-plane of shoulder 19, surpassing the back jump ring resets, just can limit shoulder and play return again, keep the spacing relation of rigidity between the latch hook of the ring platform of socket and plug, prevent between plug and the socket, separation because of accidental cause causes guarantees reliably working.

If when needing to separate plug and socket, compress into the button of plug both sides, by promoting inboard slide block, strutting jump ring, force two pintle hook lock slide blocks separately, back-moving spring 8 will drive push rod and reset, and after the push rod frustum in the latch hook withdrawed from, elasticity resetted it, remove and the restriction relation of encircling interstation, up to being retracted within the plug fully.At this moment just can unplug plug, realize separating.

Second embodiment is its structure and last routine basically identical, just latch hook changes lock dog 21 into, itself and coupler body are that the axial T type groove of vertical through hole is slidingly connected, inside spacing of restricted slide block in the groove, similar with latch hook, three slide blocks are uniformly distributed along the circumference, and maintain the external diameter initial position consistent with the spring base endoporus with the inside spring of active force.The last lower edge of the inboard cylinder of lock dog is all made the little conical surface of outer imperial palace.Boss in the socket blind hole also make can with the frustum 22 of cone match under the lock dog, the distance and the lock dog of frustum end face and blind hole peritreme ring interstation are suitable at axial thickness.All the other all are consistent with last example.

During work, after treating that the plug latch inserts, the push rod of depressing drives lock dog and stretches out plug, enters socket, after crossing the blind hole peritreme, under the acting in conjunction of the frustum conical surface, slide block is subjected to becoming to radius the active force of general orientation in push rod pressure and hole, outwards slippage, then the conical surface of inner edge also enters mated condition on the conical surface of push rod end and the lock dog, passes through between the cylinder of push rod can be by three lock dog the inners, arrives till the frustum end face in the blind hole.At this moment the jump ring at push rod middle part is also as above routine equally enters the position spacing to push rod, becomes lock-out state between plugs and sockets.

Situation during separation is consistent with last example, and after just push rod resetted, lock dog was to reset in the inverse process that its action of reset spring lower edge crosses out.

Claims

1. the plugs and sockets that has Central locking mechanism comprises, support and contain the plug casing and the Socket casing of structure content separately, conduction latch that fixedly links with housing separately and the jack that matches with latch, and conductive component separately, link and interlockable spacing locking mechanism the parts of the above-mentioned parts that are connected and fixed respectively with two housings; It is characterized in that: described locking mechanism is positioned at the central part of plugs and sockets latch position, comprises having the rigidity axial limiting matching pair (2,14,13,19) that is formed diameter changing mechanism by conical surface sliding pair (2,3,13,19).

2. plugs and sockets according to claim 1, it is characterized in that: described diameter changing mechanism contains the limiting component (3) to sliding pair idol part.

3. plugs and sockets as claimed in claim 1 or 2 is characterized in that: the rigidity axial limiting matching pair (2,14,13,19) that contains two suits.

4. plugs and sockets as claimed in claim 1 or 2, it is characterized in that: described locking mechanism contains frees spacing drive disk assembly (11) and elastic reseting part (12) thereof.

5. as plugs and sockets as described in the claim 3, it is characterized in that: described locking mechanism contains frees spacing drive disk assembly (11) and elastic reseting part (12) thereof.

6. plugs and sockets as claimed in claim 1 or 2, it is characterized in that: described spacing matching pair contains elastomeric element (8,12,17,20).

7. as plugs and sockets as described in the claim 3, it is characterized in that: described spacing matching pair contains elastomeric element (8,12,17,20).

8. as plugs and sockets as described in the claim 4, it is characterized in that: described spacing matching pair contains elastomeric element (8,12,17,20).

9. as plugs and sockets as described in the claim 5, it is characterized in that: described spacing matching pair contains elastomeric element (8,12,17,20).