CN203339403U

CN203339403U - Split-off electrical connector assembly

Info

Publication number: CN203339403U
Application number: CN2013202641805U
Authority: CN
Inventors: 卞书波; 陈继利
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2013-05-15
Filing date: 2013-05-15
Publication date: 2013-12-11
Anticipated expiration: 2023-05-15

Abstract

The utility model relates to the field of electric connectors, and especially relates to a separating fall-off type electric connector assembly. The separating fall-off type electric connector assembly comprises a plug, and a front end is a plugging terminal. The plug comprises a plug housing, a locking cap, a lock sleeve, and a cut spring. A staple bolt is disposed on a front part of the plug housing. A blocking wall is disposed on an outer peripheral face of the plug housing. A reset spring is disposed between the locking cap and the blocking wall. The reset spring pushes backward the locking cap. After plugging the plug and a socket in place through rotating the locking cap, the locking cap automatically turn backward under the action of the reset spring by just loosening the locking cap. At the moment, the locking cap is either clamped in a straight groove on a socket housing and cannot rotate, or directly falls off backward from the straight groove on the socket housing, and both unlocking is successful. Therefore, the separating fall-off type electric connector assembly solves problems of unreliable unlocking exists in an existing bayonet screw-closure and steel ball locking combined type stay wire separable electric connector.

Description

Separate the knockout electric connector assembly

Technical field

The utility model relates to electric connector field, particularly relates to a kind of separation knockout electric connector assembly.

Background technology

Adopt the electric connector of steel ball retaining mechanism to belong to the breakaway connector electric connector.The disclosed bayonet socket of the Chinese patent that the patent No. is 200520006124.7 screw with steel ball be locked formula bracing wire separation connector be exactly adopt the steel ball retaining mechanism separate a kind of of umbilical connector.It comprises plug and socket, plug comprises the locking cap on plug casing that is enclosed within that is enclosed within lock tube on plug casing and front and back anticreep of plug casing, front and back anticreep, lock tube is positioned at the locking cap inboard and can slides front and back on plug casing, be top-loaded with cut spring between its rear end (suppose plug take front end as inserted terminal) and plug casing, locking cap is movable before and after also can be on plug casing, and lock tube is pressed locking cap to sinciput under the effect of cut spring; In addition, the front end place of locking cap also is equipped with bail.Socket comprises Socket casing, be equipped with the steel ball corresponding with locking cap on plug casing on Socket casing, in addition, also be provided with thread groove on plug casing, thread groove for locking cap on the bail threaded engagement, after bail enters into thread groove, just form the structure of similar nut and leading screw between the two, if rotational lock cap now, locking cap advances to Socket casing under the mating reaction of bail and thread groove, meanwhile, plug casing is drawn close and is plugged together and put in place with socket to socket under the drive of locking cap, it needs to be noted herein, also be provided with a straight trough extended along fore-and-aft direction on socket, the afterbody of thread groove is just at the afterbody of straight trough, the purpose of doing like this is to guarantee that bail on locking cap plugs together while putting in place and just is arranged in straight trough at plug and socket, thereby can directly pull back locking cap when plug separates with socket and carry out release.

State in the use in the process of electric connector, when needs plug and socket plug together, can at first pass through the afterbody of hand-held plug casing and advance to socket, the structure of only revolving on plug casing and Socket casing (is generally on plug casing and establishes groove, establish feather key on Socket casing) contact after, the rotational lock cap overcomes the active force of cut spring by bail and coordinating of thread groove so that plug and socket plug together puts in place, and when plug and socket plug together while putting in place, bail just moves in straight trough.When the needs plug separates with socket, pull back locking cap, because bail just is arranged in straight trough, so locking cap is pulled back with respect to plug casing and by plug and socket release, after the two release, cut spring orders about that lock tube moves forward and pushes up and press Socket casing by lock tube, thereby makes plug separate with socket.

Description by the operation principle to above-mentioned electric connector is known, if think, plug can plug together smoothly or separate with socket, and its most critical part is to be that whether rotational resistance between locking cap and plug casing is suitable and whether can guarantee that locking cap is in the straight trough on Socket casing being pulled rearward moving moment.With regard to above-mentioned electric connector, when locking cap rotates on plug casing with plug casing between resistance be that the two directly contacts the sliding friction produced, resistance is larger, therefore very easily causes the rotation bite of locking cap.In addition, it is only just that effect by self makes bail be arranged in the straight trough of Socket casing that locking cap plugs together while putting in place at plug and socket, this is obviously extremely insecure, while being applied in the environment such as vibratory impulse when this electric connector, very easily cause the automatic rotation of locking cap, once, and bail is because the rotation of locking cap and straight trough on the Socket casing that staggers, can directly cause can't release between plug and socket.

As can be seen here, above-mentioned electric connector exists the large and insecure problem of release of resistance that plugs together.

Summary of the invention

The purpose of this utility model is to provide a kind of separation knockout electric connector assembly, to solve existing bayonet socket, screws and the steel ball insecure problem of release that formula bracing wire separation connector exists that is locked.

In order to address the above problem, separate the knockout electric connector assembly by the following technical solutions: separate the knockout electric connector assembly, comprise and take separately the plug and socket that front end is inserted terminal, plug comprises plug casing, locking cap, lock tube and cut spring, the front portion of plug casing is equipped with bail, socket comprises Socket casing, be equipped with steel ball on Socket casing, in addition, also be provided with the thread groove corresponding with bail and straight trough on the outer peripheral face of Socket casing, the outer peripheral face of plug casing is provided with retaining wall, be top-loaded with back-moving spring between locking cap and retaining wall, described back-moving spring pushes locking cap backward.

Described retaining wall consists of the removable supporting bead fixedly be assemblied on plug casing.

The rear end of locking cap fixedly is equipped with for connecting the connector of stay cord, and described back-moving spring is by coordinating top to be contained between locking cap and retaining wall with connector.

Described connector fixedly is assemblied on locking cap by jump ring.

Described back-moving spring is ripple spring or dish spring.

Because the plug of this electric coupler component is provided with retaining wall on the outer peripheral face of its plug casing, and be top-loaded with back-moving spring between locking cap and retaining wall, back-moving spring pushes locking cap backward, therefore, in the process of using, when by the rotational lock cap and make this plug and socket plug together to put in place, after bail just is arranged in the straight trough on Socket casing, only need to unclamp locking cap, locking cap retreats automatically under the effect of back-moving spring, now, itself otherwise be in the straight trough be stuck on Socket casing and can not rotate, just directly in the straight trough from Socket casing, deviate from backward, while in above-mentioned any situation, pulling back locking cap, it can not be subject to the interference of the thread groove on Socket casing, all releases smoothly, as can be seen here, this separation pull-off plug has solved existing bayonet socket and has screwed and the steel ball insecure problem of release that formula bracing wire separation connector exists that is locked.

Further, adopt external supporting bead conveniently replaced on the one hand as retaining wall, can regulate as required the position of retaining wall on the other hand, can also adopt as required the material of packing ring simultaneously, to reach the purpose that reduces the coefficient of friction between itself and back-moving spring; Because back-moving spring is the parts of rapid wear in plug, after therefore being assemblied on locking cap by connector by jump ring, can change easily at any time back-moving spring, facilitated the maintenance to plug; Owing to being subject to axial force and moment of torsion when working simultaneously, adopt ripple spring or dish spring to be difficult for as back-moving spring damaged, thereby can lengthen the normal operation cycle of plug.

The accompanying drawing explanation

Fig. 1 is the structural representation that separates the knockout electric connector assembly;

Fig. 2 is the structural representation of the plug in Fig. 1;

Fig. 3 is the structural representation of the socket in Fig. 1;

In Fig. 4 process that to be the plug that separates the knockout electric connector assembly plug together with socket, bail enters thread groove state diagram before;

Fig. 5 is the state diagram separated in the plug of knockout electric connector assembly and process that socket plugs together when bail enters thread groove.

Embodiment

Separate knockout electric connector assembly embodiment, as Figure 1-5, comprise plug 101 and socket 102, plug 101 be take front end as inserted terminal separately with socket 102.

The structure of plug 101 as shown in Figure 2, comprises plug casing 11, pin insulator 12, plug contact 13, wire clip 14, locking cap 15, lock tube 16 and cut spring 17.Wherein plug casing 11 is splines shell, and the outer peripheral face at its inserted terminal place is provided with positioning key, and wire clip 14 fixedly is assemblied in the afterbody of plug casing 11 by screw thread.Plug contact 13 fixedly is assemblied in plug casing 11 by pin insulator 12.Before and after locking cap 15 and lock tube 16 are equal, anticreep is enclosed within on plug casing 11 and can moves front and back on plug casing 11, in the present embodiment, on plug casing 11, have to the gear edge of protruding to the periphery in week, in having, the rear end of lock tube 16 turns edge, should in turn edge and hang over described gear on plug casing 11 along upper, thereby make lock tube 16 to come off forward from plug casing 11, in addition, the outside of plug casing 11 also is provided with retaining wall 18, cut spring top be contained in retaining wall 18 and lock tube 16 in turn edge between, in the present embodiment, retaining wall 18 is by being enclosed within on plug casing 11 and fixing supporting bead forms by screw, retaining wall 18 can stop lock tube 16 to come off from the rear end of plug casing 11, the rear end of locking cap 15 fixedly is equipped with connector 19 by jump ring, the front end of connector 19 inserts in locking cap 15, its rear end has outer the turning edge for being connected with stay cord 20, connector 19 coordinates with retaining wall 18 and makes locking cap 15 to come off from the front end of plug casing 11 simultaneously, in addition, the front inner wall face of locking cap 15 is provided with the rearward step surface of face, it is relative with the described step surface on locking cap 15 that the outer peripheral face of lock tube 16 is provided with, the step surface of mutual block, make thus as long as lock tube 16 does not come off from the rear end of plug casing 11, locking cap 15 just can't come off from the rear end of plug casing 11, as above-mentioned, locking cap 15 in the present embodiment and lock tube 16 coordinate realization like this with the front and back anticreep between plug casing 11.Also be top-loaded with back-moving spring 21 between locking cap 15 and retaining wall 18, in the present embodiment, back-moving spring 21 adopts ripple spring (can also be the dish spring in other embodiment), it is contained between locking cap 15 and retaining wall 18 by coordinating with connector 19 to push up, and back-moving spring 21 pushes backward locking cap 15 and makes it to produce a mobile trend backward; Also be provided with the draw-in groove coordinated for the steel ball with the steel ball retaining mechanism on the anterior outside wall surface of plug casing 11.The front portion of locking cap 15 is equipped with bail 22, in the present embodiment, on bail 22, all is equipped with and rolls ring.

As shown in Figure 3, socket 102 comprises Socket casing 23, socket contact and socket tail folder 24 to the structure of socket 102.Wherein the outer peripheral face of Socket casing 23 is provided with thread groove and straight trough, and inner wall surface thereof is provided with the chute corresponding with positioning key on plug casing 11.Wherein thread groove adopts three crank slots, straight trough extends and runs through forward the front end face of Socket casing 23 along fore-and-aft direction, the socket contact is divided into front terminal contact 25, middle contact 26 and tail end contact 27, wherein front terminal contact 25 is for pegging graft with plug contact 13, it fixedly is assemblied in Socket casing 23 by anterior insulator 28, middle contact 26 is switching contact element, its front end and front terminal contact 25 are pegged graft, middle contact 26 is assemblied in Socket casing 23 by intermediate insulation body 29, intermediate insulation body 29 is the insulator that floats, it can slide front and back in Socket casing 23, anterior insulator 28 is provided with guide pin bushing 30, the insulator that floats is provided with pilot pin 31, between guide pin bushing 30 and pilot pin 31, slipper seal coordinates, and pilot pin 31 is forward through anterior insulator 28, tail end contact 27 fixedly is assemblied in Socket casing 23 by rear portion insulator 32, be top-loaded with pushing spring 33 between rear portion insulator 32 and intermediate insulation body 29, in the middle of pushing spring 33 makes, contact 26 is state disconnected from each other with tail end contact 27 under initial condition.

When needs plug and socket plug together, can at first control locking cap advances plug to socket, in the process advanced, at first positioning key on plug casing and the chute on Socket casing meet, now between plug casing and Socket casing, forming key coordinates and can't relatively rotate, and locking cap can freely rotate (state as shown in Figure 4), now continue to advance plug, bail is arranged in straight trough on Socket casing and arrives the thread groove place of Socket casing, make thus locking cap to rotate (state as shown in Figure 5) along the thread groove on Socket casing, rotational lock cap now, the bail on locking cap is advanced and drives locking cap and plug casing is advanced along identical direction along the bearing of trend of thread groove, until pilot pin contacts with pin insulator, plug casing contacts with lock tube, when the pressure of pushing spring and cut spring is greater than the pressure of back-moving spring, back-moving spring starts progressively to compress and drives plug casing and advances to socket, until bail is when moving to the end of thread groove and entering in straight trough, plug casing and Socket casing are locked together by steel ball.State after plug and socket locking as shown in Figure 1.And after the operator looses one's grip, locking cap exits backward the thread groove on Socket casing along straight trough under the effect of back-moving spring, make thus and only need to pull locking cap to get final product when the needs plug separates with socket, because bail now is positioned at outside thread groove, thus the thread groove on socket can be to locking cap movement backward cause any interference.

Claims

1. Separation and fall-off electrical connector assembly, including plugs and sockets with the front end as the insertion end. The plug includes a plug housing, a locking cap, a locking sleeve and a separation spring. The front part of the plug housing is equipped with a staple, and the socket It includes a socket housing on which steel balls are assembled. In addition, the outer peripheral surface of the socket housing is also provided with threaded grooves and straight grooves corresponding to the staples. It is characterized in that the outer peripheral surface of the plug housing is provided with A return spring is installed between the retaining wall, the locking cap and the retaining wall, and the return spring pushes the locking cap backward.

2. The detachable electrical connector assembly according to claim 1, wherein the blocking wall is formed by a detachable support washer fixedly assembled on the plug housing.

3. The detachable electrical connector assembly according to claim 1, characterized in that, the rear end of the locking cap is fixedly equipped with a connecting piece for connecting the pull cord, and the return spring is mounted on the top by cooperating with the connecting piece. Between the locking cap and the retaining wall.

4 . The detachable electrical connector assembly according to claim 3 , wherein the connector is fixedly assembled on the locking cap through a snap spring.

5. The detachable electrical connector assembly according to any one of claims 1-4, wherein the return spring is a ripple spring or a disc spring.