CN106848740A - A kind of connector and its lock sleeve - Google Patents

Abstract

The invention relates to a connector and a locking sleeve thereof. The connector includes an inner housing and a locking sleeve set outside the inner housing. A lock for locking steel balls on the adapter connector is provided on the outer wall of the inner housing to lock the steel balls. The locking groove; the locking sleeve includes a sleeve body, and the sleeve body has a steel ball stopper for radially stopping the locking steel ball on the adapter connector in the locking groove. The ball stop part is composed of an elastic structure that can elastically deform in the radial direction when the adapter connector is subjected to a forced pulling force, and then give way to the locking steel ball in the radial direction to realize unlocking. In the actual use of the present invention, when an abnormal situation occurs and the cable or cable clamp is directly subjected to separation force but the locking sleeve is not subjected to separation force, the arrangement of the elastic structure on the locking sleeve can release the connection between the connector and the adapter. The steel ball lock between the connectors enables the connector and the mating connector to be separated smoothly and forcibly.

Description

A connector and its locking sleeve

technical field

The invention relates to a connector and a locking sleeve thereof.

Background technique

At present, a locking steel ball locking structure is generally used between the plug connector and the socket connector of the push-pull connector assembly, so as to achieve the purpose of fast insertion and stable locking between the plug and the socket. The structure is generally as follows: As shown in FIG. 1, it includes a plug connector 1 and a socket connector 2. The socket connector 2 includes an inner housing 21 and a locking sleeve 22 set outside the inner housing 21. The locking sleeve 22 is connected to the inner housing. An elastic member 24 is arranged between the bodies 21 and can provide a leftward axial push force for the locking sleeve 22 . An inserting space for inserting the plug connector 1 is formed between the inner housing 21 and the locking sleeve 22 .

The plug end of the plug connector 1 is provided with a plurality of locking steel balls 12 at intervals along the circumferential direction, and the outer peripheral surface of the inner housing 21 is provided with a lock for the plug connector 1 when the plug connector 1 is inserted. The locking groove 212 where the tight steel ball enters, the locking sleeve includes a sleeve body, and the inner wall surface of the sleeve body constitutes a steel bar for radially blocking the locking steel ball in the locking groove to realize the locking of the connector. Ball stop.

During use of the push-pull connector, push the locking sleeve 22 to the left, and then insert the plug connector 1 into the socket connector 2. The locking steel ball 12 on the plug connector 1 corresponds to the locking groove 212, and the locking The tight sleeve 22 moves to the right under the action of the elastic member 24 to stop the locking steel ball 12 in the locking groove, and the locking steel ball 12 is stuck between the inner housing 21 and the plug connector 1 to realize the plug connection The locking steel ball 12 between the connector 1 and the socket connector 2 is locked. When it is necessary to release the lock, forcefully push the locking sleeve 22 to the left to make the locking steel ball 12 escape from the locking groove, release the locking between the plug connector 1 and the socket connector 2, and realize the plug connector 1 and the separation between socket connector 2.

During the actual use of the above-mentioned socket connector, the steel ball lock between the plug connector 1 and the socket connector 2 can only be released by applying force to the locking sleeve to realize the separation of the two. When an abnormal situation occurs, only Applying force to the cable or cable clamp connected to the connector cannot force the connector to separate under abnormal conditions.

Contents of the invention

The purpose of the present invention is to provide a connector lock sleeve that can realize the forced separation of the connector when the cable or cable clamp connected to the connector is exerted in an abnormal situation; Connectors for connector locking sleeves.

In order to achieve the above object, the technical solution of a connector locking sleeve in the present invention is: it includes a sleeve body, and the sleeve body has a locking ball for radially stopping the locking steel ball on the adapter connector in the locking groove. The steel ball stop part in the middle, the steel ball stop part can elastically deform in the radial direction when the adapter connector is subjected to a forced pulling force, and then give way to the locking steel ball in the radial direction Unlocked elastic construction.

As a further improvement of the present invention: the elastic structure is composed of a cantilever structure formed by arranging radially penetrating separation grooves on the casing.

As a further improvement of the present invention: the cantilever structure extends along the axial direction, and the end of the cantilever structure away from the insertion end of the sleeve body is connected to the sleeve body.

As a further improvement of the present invention: an annular groove is provided at the opening of the insertion end of the sleeve to provide space for the radial movement of the locking steel ball, and the cantilever structure's cantilevered end extends to the annular groove.

In order to achieve the above object, the technical solution of a connector of the present invention is: comprising an inner housing and a locking sleeve set outside the inner housing, the outer wall of the inner housing is provided with a lock for matching the connector. The tight steel ball enters into the locking groove for further locking of the steel ball; the locking sleeve includes a sleeve body, and the sleeve body is provided with the locking steel ball for radially stopping the locking steel ball on the adapter connector in the locking groove. The steel ball stop part in the groove, the steel ball stop part can elastically deform in the radial direction when the adapter connector is subjected to a forced pulling force, and then give way to the locking steel ball in the radial direction An elastic structural composition to achieve unlocking.

As a further improvement of the present invention: the elastic structure is composed of a cantilever structure formed by arranging radially penetrating separation grooves on the casing.

As a further improvement of the present invention: the cantilever structure extends along the axial direction, and the end of the cantilever structure away from the insertion end of the sleeve body is connected to the sleeve body.

As a further improvement of the present invention: an annular groove is provided at the opening of the insertion end of the casing, and one end of the cantilever structure extends to the annular groove.

The beneficial effects of the present invention are: the steel ball stop part of the connector locking sleeve of the present invention can elastically deform in the radial direction when the mating connector is subjected to a forced pulling force, and then lock in the radial direction. The tight steel ball gives way to realize the elastic structure of unlocking. In actual use, when an abnormal situation occurs and the cable or cable clamp is directly subjected to separation force but the locking sleeve is not subjected to separation force, the cable or cable clamp will transmit the separation force to the inner casing, and the The locking groove produces a pushing force on the locking steel ball inside, and the locking steel ball transmits the pushing force to the elastic structure, and the elastic structure deforms under the action of the radial component of the pushing force, increasing the elastic structure and The radial distance between the inner shells provides enough space for the locking steel ball to leave the locking groove, thereby releasing the locking of the steel ball between the connector and its mating connector, so that the connector and its mating The connector can be forced to separate smoothly.

Furthermore, the elastic structure is composed of a cantilever structure formed by arranging radially penetrating separation grooves on the wall surface of the sleeve body. The design of this elastic structure is simple and convenient, low in cost and strong in versatility.

Description of drawings

Fig. 1 is a schematic structural diagram of a push-pull connector in the background technology;

2 is a schematic structural view of a connector in a specific embodiment of a connector of the present invention;

3 is a three-dimensional structural diagram of a locking sleeve in Embodiment 1 of a connector of the present invention;

Fig. 4 is a structural diagram of the elastic structure in Embodiment 2 of a connector of the present invention.

In the figure: 1. plug connector; 11. steel ball mounting hole; 12. locking steel ball; 2. socket connector; 21. inner shell; 211. first annular boss; 212. locking groove; 22 , locking sleeve; 221, second annular boss; 222, ring groove; 223, slope; 224, separation groove; 225, cantilever structure; 23, retaining ring; 24, elastic piece; 3, floating plate; 4, fixed Plate; 5, push spring; 6, limit block.

detailed description

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

The specific structure of the push-pull connector assembly is shown in Figures 2 to 4, including a plug connector 1 and a socket connector 2, and the socket connector 2 constitutes a specific embodiment of the connector of the present invention.

The socket connector 2 includes an inner housing 21 and a locking sleeve 22 fitted outside the inner housing 21 . The gap between the inner housing 21 and the locking sleeve 22 constitutes an insertion space for the plug connector 1 to be inserted into. The outer periphery of the inner casing 21 is provided with a first annular boss 211, and the locking sleeve 22 includes a sleeve body. A second annular boss 221 is arranged on the inner peripheral surface of the sleeve body. The side wall surface and the left side wall surface of the first annular boss 211 block and cooperate to prevent the locking sleeve 22 from protruding from the right end of the inner casing. It can stop and cooperate with the left side wall of the second annular boss 221 to prevent the locking sleeve 22 from coming out from the left end of the inner housing. Between the retaining ring 23 and the second annular boss 221, there is also an elastic piece 24 that produces a leftward axial thrust on the locking sleeve 22, and the locking sleeve 22 can move along the socket connector 2 within the elastic limit of the elastic piece 24. axis to move left and right.

The outer wall surface of the inner housing 21 and the inner wall surface of the locking sleeve 22 form two side walls of the insertion space for the plug connector 1 to be inserted into. The outer wall surface of the inner housing 21 is provided with a locking groove 212 for the locking steel ball on the plug connector to enter when the plug connector 1 is inserted and then lock the steel ball. The inner wall surface of the casing constitutes a steel ball stopping portion for radially stopping the locking steel ball in the locking groove 212 . The plug-in end of the plug connector 1 is provided with a plurality of steel ball mounting holes 11 penetrating through the side wall of the plug-in end at intervals along the circumferential direction, and steel ball mounting holes 11 are installed with holes for inserting the plug connector and the socket connector. The locking steel ball 12 snap fits with the locking groove 212 on the inner housing when connected, and the diameter of the locking steel ball 12 is greater than the thickness of the wall at the insertion end of the plug connector 1 . An annular groove 222 is arranged on the inner wall surface of the socket where the sleeve body is connected to the plug connector 1 , and the inner wall surface of the annular groove 222 is an inclined surface 223 .

The steel ball stop part where the sleeve body cooperates with the locking steel ball 12 is an elastic structure. The groove 224, the radially penetrating separation groove 224 is U-shaped, and the opening of the U-shaped radially penetrating separation groove 224 faces away from the locking sleeve insertion end. Through the arrangement of the radially penetrating separation grooves 224, a plurality of cantilever structures 225 extending in the axial direction are formed on the side wall surface of the sleeve body. The overhang end of 225 extends to the ring groove 222 .

During normal use of the push-pull connector assembly, the locking sleeve 22 is pushed to the left, so that the ring groove 222 inside the locking sleeve 22 corresponds to the locking groove 212 on the outer peripheral surface of the inner housing 21, and then the plug is connected. The device 1 is inserted into the socket connector 1, and the locking steel ball 12 on the plug connector 1 is inserted into the gap between the locking sleeve 22 and the inner housing 21 along the cantilever structure 225 on the locking sleeve 22 until the plug is connected. The locking steel ball 12 on the device 1 corresponds to the locking groove 212 on the inner housing 21, loosen the locking sleeve 22, and the locking sleeve moves to the right under the action of the elastic member, and the locking steel ball 12 is in the cantilever structure 225 Under the push action of the inner inclined surface, it squeezes into the locking groove 212, and the locking steel ball 12 is stuck between the inner housing 21 and the plug connector, so as to realize the locking steel ball between the plug connector 1 and the socket connector 2 Locking, in this process, the rigidity of the cantilever structure 225 is large enough to provide the pressing force to squeeze the locking steel ball 12 into the locking groove 212 and keep the locking steel ball in the inner housing 21 to connect with the plug The locking force between the devices 1 without deformation. When it is necessary to release the locking, forcefully push the locking sleeve 22 to the left, so that the locking steel ball 12 enters the ring groove 222, and the locking between the plug connector 1 and the socket connector 2 is released, and the plug connector 1 is realized. and the separation between socket connector 2.

When an abnormal situation occurs and the cable or cable clamp is directly subjected to a forced separation force but the locking sleeve 22 is not subjected to the separation force, the cable or cable clamp transmits the separation force to the inner housing 21, and the locking on the inner housing 21 The groove 212 produces a jacking force to the locking steel ball 12 inside, and the locking steel ball 12 transmits the jacking force to the cantilever structure 225, and the cantilever structure 225 deforms under the action of the radial component force of the jacking force, increasing The gap between the cantilever structure 225 and the inner housing 21 enables the locking steel ball 12 to leave the locking groove 212 and enter the gap between the cantilever structure 225 and the inner housing 21 to release the gap between the plug connector 1 and the socket connector 2. The steel ball between them is locked, so that the plug connector 1 and the socket connector 2 can be separated smoothly and forcibly.

In summary, the setting of the elastic structure on the locking sleeve of the socket connector 2 not only enables the connector assembly to realize the forced separation between the plug connector and the socket connector when an abnormal situation occurs, but also the elastic structure is set as a cantilever Structure, this method has simple structure, convenient production, low cost and strong versatility.

As another embodiment of the present invention, the elastic structure may not be set as a cantilever structure, but as a spring pushing structure, as shown in Figure 4, the steel ball stopper on the sleeve is set It is a double-layer structure, the inner layer is a floating plate 3, and the outer layer is a fixed plate 4. The inner end of the floating plate is hinged with the casing, and a push spring 5 is arranged between the floating plate and the fixed plate. A limit block 6 is provided to prevent the floating plate from tilting inward. The floating plate of this device will push the push spring when it receives enough radial thrust, so as to make room for the locking steel ball to leave the locking groove to release the locking. Thick and smaller locking sleeve.

As another embodiment of the present invention, the ring groove 222 may not be provided at the opening of the insertion end of the sleeve body. At this time, when the plug connector 1 and the socket connector 2 are plugged or separated, it is necessary to increase the The axial movement distance of the locking sleeve is such that the locking groove is completely exposed to snap the locking steel ball into the locking groove, which is inconvenient for the insertion or separation of the plug connector 1 and the receptacle connector 2 .

As another embodiment of the present invention, the radially penetrating separation groove 224 may not be set in a U shape, but may be set to penetrate the side wall surface of the casing in the radial direction, and the right end in the axial direction penetrates the right end surface of the casing. There are two through grooves, and a cantilever structure whose left end is flush with the left end face of the casing is formed between the two through grooves.

As another embodiment of the present invention, the cantilever structure may not be set to extend in the axial direction, the cantilever structure cantilever along the axial direction of the casing and one end in the axial direction is connected to the casing, but a One end extending along the circumferential direction of the sleeve body and connected to the sleeve body along the circumferential direction of the sleeve body. However, this method is not only difficult to process, but also because there are multiple locking steel balls arranged in the axial direction, when the number of locking steel balls is large, multiple cantilever structures extending in the circumferential direction cannot be circumferentially arranged.

A specific embodiment of a locking sleeve for a connector according to the present invention has the same structure as that of the locking sleeve in the above-mentioned connector, and will not be repeated here.

Claims (8)

1. A connector locking sleeve, comprising a sleeve body, the sleeve body has a steel ball stopper for radially stopping the locking steel ball on the adapter connector in the locking groove, its The feature is that the steel ball stop part is composed of an elastic structure that can elastically deform in the radial direction when the mating connector is subjected to a forced pulling force, and then give way to the locking steel ball in the radial direction to realize unlocking . 2 . The connector locking sleeve according to claim 1 , wherein the elastic structure is composed of a cantilever structure formed by disposing radially penetrating separation grooves on the sleeve body. 3 . 3 . The connector locking sleeve according to claim 2 , wherein the cantilever structure extends along the axial direction, and the end of the cantilever structure away from the insertion end of the sleeve body is connected to the sleeve body. 4 . 4. The connector locking sleeve according to claim 3, characterized in that: the opening of the insertion end of the sleeve body is provided with an annular groove providing space for the radial movement of the locking steel ball, and the suspension of the cantilever structure The extending end extends to the ring groove. 5. A connector, including an inner housing and a locking sleeve set outside the inner housing, the outer wall of the inner housing is provided with a locking steel ball on the adapter connector to enter and then lock the steel ball locking groove; the locking sleeve includes a sleeve body, and the sleeve body has a steel ball stopper for radially stopping the locking steel ball on the adapter connector in the locking groove, It is characterized in that the steel ball stop part is composed of an elastic structure that can elastically deform in the radial direction when the adapter connector is subjected to a forced pulling force, and then give way to the locking steel ball in the radial direction to realize unlocking constitute. 6. The connector according to claim 5, wherein the elastic structure is composed of a cantilever structure formed by disposing radially penetrating separation grooves on the casing. 7. The connector according to claim 6, wherein the cantilever structure extends along the axial direction, and an end of the cantilever structure away from the insertion end of the sleeve body is connected to the sleeve body. 8 . The connector according to claim 7 , wherein a ring groove is provided at the opening of the plug-in end of the sleeve, and one end of the cantilever structure extends to the ring groove.