CN109193266B

CN109193266B - Plug connector with unlocking function

Info

Publication number: CN109193266B
Application number: CN201810923548.1A
Authority: CN
Inventors: 陈信智
Original assignee: Oupin Electronic Kunshan Co ltd
Current assignee: Oupin Electronic Kunshan Co ltd
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2024-02-23
Anticipated expiration: 2038-08-14
Also published as: CN109193266A

Abstract

The invention discloses a plug connector with an unlocking function, which comprises a base, a signal transmission module, a lock head, a cover body and an unlocking device arranged on the cover body. The lock head is provided with two symmetrical side protruding blocks, and each side protruding block is provided with an upward inclined surface. The unlocking device comprises a sliding piece which is slidably arranged on the cover body and is connected with the lock head, and a brace which is connected with the sliding piece. The connecting port of the slider has a pair of downward inclined surfaces. The free end of the lock head is embedded into the connecting port, and the upward inclined surface is abutted with the downward inclined surface. The pull strip is pulled backwards, the sliding piece moves backwards, the downward inclined surface pushes the side protruding block to displace downwards, and the lock head is made to sink, so that unlocking is achieved.

Description

Plug connector with unlocking function

Technical Field

The present invention relates to a connector, and more particularly to a plug connector with an unlocking function.

Background

Locking devices are generally arranged on the two plug connectors and the socket connectors which are in butt joint, so that the two connectors are prevented from loosening due to external force after being in butt joint, and the reliability and the use safety of mechanical connection of the two connectors are ensured.

A common locking means is by providing a locking clip on the plug connector.

Referring to fig. 1, an RJ45 plug 9 for a computer network is provided with a resilient locking arm 90, and when the plug 9 is plugged into an RJ45 socket 8, the resilient locking arm 90 is pressed to enable the plug 9 to enter the socket 8 and engage with a stop 80 in the socket 8 through the resilient locking arm 90, thereby realizing locking. And when unlocked, the resilient locking arm 90 is depressed to disengage the stop 80, thereby effecting unlocking.

However, when unlocking, the elastic locking arm 90 is difficult to press, and even needs to be pressed in place by an auxiliary tool, so that the unlocking operation is difficult.

Accordingly, there is a need for a new plug connector that employs a new unlocking method to solve the problems of the prior art.

Disclosure of Invention

The invention mainly aims to provide a plug connector with an unlocking function, wherein a sliding piece is combined with a lock head, unlocking can be completed by pulling a brace backwards, and the unlocking mode is safe, effective and convenient.

Other objects and advantages of the present invention will be further appreciated from the technical features disclosed in the present invention.

In order to achieve the above purpose, the invention adopts the following technical scheme: the plug connector with the unlocking function comprises a base, a signal transmission module arranged in the base, a lock head arranged on the base and a cover body arranged on the base; the lock head is provided with a fixed end fixed on the base, a free end positioned above the base and extending backwards, and two shoulders positioned between the fixed end and the free end and positioned above the base and capable of being buckled in a socket connector; the cover body is provided with a horizontal top wall and two symmetrical side walls perpendicular to the top wall. The free end of the lock head is provided with two symmetrical side protruding blocks; each side bump has an upward slope. The cover body is formed with two sliding grooves, and a notch is formed in each sliding groove. The plug connector also comprises an unlocking device; the unlocking device comprises a sliding piece which is slidably arranged on the cover body and is connected with the lock head, and a brace which is connected with the sliding piece. The sliding piece is provided with a main body, a pair of sliding strips formed on two sides of the main body, a connecting port formed at the front end of the main body and an elastic arm formed at the rear end of the main body; a convex buckle which extends outwards is formed at the rear end of each sliding strip; the connecting port is provided with a pair of downward inclined surfaces which can be matched with the upward inclined surfaces; wherein the sliding strip enters the corresponding sliding groove, and the convex buckle enters the corresponding notch; the elastic arm is propped against the top wall of the cover body; the free end of the lock head is embedded into the connecting port; the upward inclined surface of the side projection is abutted with the corresponding downward inclined surface of the connecting port. The pull rod is pulled backwards, the sliding piece moves backwards, the elastic arm is compressed, the downward inclined surface can push the side protruding block to displace downwards, so that the lock head sinks, and unlocking is achieved; the pull-tab is released and the slider moves forward by the automatic rebound of the resilient arm and the lock returns upward to the original condition.

In one embodiment, an opening is formed at the front end of the top wall of the cover body, and the two sliding grooves are formed at two sides of the opening; the sliding piece is arranged in the opening of the cover body.

In one embodiment, the resilient arm is formed from a pair of curved inwardly curved segments.

In one embodiment, at least one notch is formed on the top surface of the main body of the slider and is positioned behind the connector; the brace has at least one hook at its front end, which extends into the notch.

In one embodiment, a limit convex strip, a pair of front limit grooves and a pair of rear limit grooves are also formed on the top wall of the cover body; the brace has a central slot, a pair of front flanks, and a pair of rear flanks; the front side wing is clamped into the corresponding front limit groove, the rear side wing is clamped into the corresponding rear limit groove, and the limit convex strip extends out of the middle groove.

In one embodiment, the brace has a pull ring at its rear end.

In one embodiment, the two side protrusions and the two shoulders are symmetrically formed at two sides of the free end; the upward slope is the front surface of the side bump.

In one embodiment, the top surface of the connection port has the same contour as the locking head.

In one embodiment, the base has a U-shaped receiving portion and an inverted U-shaped plug portion in communication with the receiving portion.

In one embodiment, the signal transmission module has a front end portion, a rear end portion, a plurality of electrical contact heads disposed at the front end portion and exposed to the outside at a bottom surface thereof, and a cable extending from the rear end portion, wherein the front end portion extends into the plug portion, the electrical contact heads are exposed to the outside from the bottom surface of the plug portion, the rear end portion is disposed in the receiving portion, and the cable extends out of the base.

Compared with the prior art, the plug connector with the unlocking function enables the sliding piece to move backwards through the brace so as to force the lock head to sink, and therefore unlocking is achieved. When the brace is released, the lock head rises by means of automatic resetting of the sliding piece, so that locking is realized. The locking and unlocking modes are safe, effective and convenient.

Drawings

Fig. 1 is a schematic structural diagram of a conventional plug, which mainly shows a locking chuck capable of realizing locking and unlocking functions.

Fig. 2 is a schematic perspective view of a plug connector according to the present invention.

Fig. 3 is a schematic perspective view of the plug connector according to the present invention along another direction.

Fig. 4 is an exploded view of the plug connector of the present invention.

Fig. 5 is a schematic view showing an exploded structure of the plug connector according to the present invention along another direction.

Fig. 6 is a schematic diagram of the signal transmission module and the base of the present invention after being combined.

Fig. 7 is a schematic structural view of the cover body of the present invention.

Fig. 8 is a schematic view of the structure of the cover of the present invention along another direction.

Fig. 9 is a schematic view of a structure of the cover according to the present invention along another direction.

Fig. 10 is a schematic structural view of the unlocking device of the present invention after being combined with the cover.

Fig. 11 is a schematic view of the structure of the unlocking device of the present invention in another direction after being combined with the cover.

Fig. 12 is a schematic structural diagram of the cover, the signal transmission module and the base of the present invention after being combined.

Fig. 13 is an exploded view of the unlocking device of the present invention.

Fig. 14 is a schematic view showing an exploded structure of the unlocking device according to the present invention along another direction.

FIG. 15 is a schematic view of a slider according to the present invention.

Fig. 16 is a schematic view of a plug connector according to the present invention, wherein the slider is mounted on the cover, and the stay is not mounted.

Fig. 17 is another schematic view of the plug connector of the present invention shown in fig. 16.

Fig. 18 is a schematic structural view of a socket connector.

Fig. 19 is a schematic view of the plug connector of the present invention after being inserted into the receptacle connector.

The reference numerals in the above figures are explained as follows:

plug connector 1 base 10

Receptacle 11 plug 12

The boss 13 has a shaft hole 14

Front end 21 of signal transmission module 20

The rear end 22 electrically contacts the head 23

Cable 24 lock 30

Fixed end 31 free end 32

Shoulder 33 side bump 34

Upward facing chamfer 340 cover 40

Top wall 41 limit convex strip 410

Front limit slot 411 and rear limit slot 412

Side wall 42 fixing hole 420

The male shaft 421 has an opening 43

Chute 44 notch 45

Unlocking device 50 slide 60

Cut 610 of body 61

Slide 62 cam 620

Downward slope 630 of connection port 63

Spring arm 64 brace 70

Intermediate groove 72 of hook 71

Front side flap 73 and rear side flap 74

Pull ring 75 socket connector 2

Socket terminal 201 stop 202.

Detailed Description

The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced. The directional terms referred to in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer only to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the invention and is not limiting of the invention.

Referring to fig. 2 to 5, the plug connector 1 of the present invention includes a base 10, a signal transmission module 20 installed in the base 10, a locking head 30 disposed on the base 10, a cover 40 installed on the base 10, and an unlocking device 50 installed on the cover 40.

As shown in fig. 4 and 5, the base 10 has a U-shaped receiving portion 11 and an inverted U-shaped plug portion 12 communicating with the receiving portion 11. Wherein, a protrusion 13 and a shaft hole 14 are formed on both outer side surfaces of the receiving portion 11.

It should be noted that the so-called U-shape and inverted U-shape are defined with reference to the directions of the drawings.

As shown in fig. 4 and 5, the signal transmission module 20 has a front end portion 21, a rear end portion 22, a plurality of electrical contact heads 23 disposed at the front end portion 21 and exposed to the outside at the bottom surface thereof, and a cable 24 extending from the rear end portion 22.

As shown in fig. 6, the signal transmission module 20 is assembled in the base 10, wherein the front end portion 21 extends into the plug portion 12, and the electrical contact heads 23 are exposed from the bottom surface of the plug portion 12 to be ready for making electrical contact with the socket terminals 201 of a socket connector 2 as shown in fig. 18; the rear end 22 is placed in the receiving portion 11, and the cable 24 extends out of the base 10.

As shown in fig. 4, the lock cylinder 30 has a fixed end 31, a free end 32, and two symmetrical shoulders 33 formed between the fixed end 31 and the free end 32. The free end 32 is formed with two symmetrical side projections 34. The two side projections 34 are symmetrically formed on both sides of the free end 32, and the two side projections 34 are located behind the two shoulders 33. Each side bump 34 has an upwardly facing ramp 340. In this embodiment, the upward slope 340 refers to the front surface of the side bump 34.

As shown in fig. 6, the locking head 30 is fixed to the base 10. In detail, the fixed end 31 (see fig. 4) is clamped between the base 10 and the signal transmission module 20; the free end 32 is located above the base 10 and extends rearward; the two shoulders 33 are also located above the base 10. The lock 30 can be sunk under the action of external force and can be automatically lifted when the external force is eliminated.

As shown in fig. 7, 8 and 9, the cover 40 has a horizontal top wall 41 and two symmetrical side walls 42 perpendicular to the top wall 41. An opening 43 is formed at the front end of the top wall 41, a sliding slot 44 is formed on each side of the opening 43, and a recess 45 is formed in each sliding slot 44. The top wall 41 is also formed with a spacing rib 410 at a central position of the top wall 41, a pair of front spacing slots 411 near the front end of the top wall 41, and a pair of rear spacing slots 412 near the rear end of the top wall 41. In the present embodiment, each side wall 42 is formed with a fixing hole 420 and a protruding shaft 421 (see fig. 8).

As shown in fig. 12, the cover 40 is mounted on the base 10, the fixing holes 420 are combined with the corresponding protrusions 13, and the protruding shafts 421 (see fig. 8) are combined with the corresponding shaft holes 14 (see fig. 5), thereby fixing the cover 40 to the base 10.

As shown in fig. 13 and 14, the unlocking device 50 includes a sliding member 60 slidably mounted on the cover 40 and connected to the lock head 30, and a brace 70 connected to the sliding member 60.

As shown in fig. 13, 14 and 15, the slider 60 has a flat plate-shaped main body 61, a pair of sliding strips 62 formed on both sides of the main body 61, a connection port 63 formed at the front end of the main body 61, and an elastic arm 64 formed at the rear end of the main body 61.

As shown in fig. 14, at least one notch 610 is formed on the top surface of the main body 61, and is located behind the connection port 63 for fixing the brace 70. In the present embodiment, two cutouts 610 are formed in the top surface of the main body 61.

As shown in fig. 13, at the rear end of each slide bar 62, there is a protruding buckle 620 protruding outward. In this embodiment, the rear end of each slide 62 is a free end, and the free ends of both slides 62 are slightly flared to provide a resilient securing action. The button 620 is formed on the free end.

As shown in fig. 13 and 15, the top surface profile of the connection port 63 is substantially the same as that of the locking head 30 (see fig. 4); while the bottom profile of the connection port 63 is different from the profile of the locking head 30. In the present embodiment, the bottom surface of the connection port 63 has a substantially square shape, so that the lock cylinder 30 can be ensured to be movable in the connection port 63.

As shown in fig. 13 and 14, the connection port 63 has a pair of downward inclined surfaces 630 capable of engaging with the upward inclined surfaces 340 of the side projections 34 of the lock cylinder 30 (see fig. 4). In this embodiment, the resilient arm 64 is formed of a pair of curved inwardly curved segments. In other embodiments, the resilient arm 64 may take other configurations.

As shown in fig. 16 and 17, the slider 60 is mounted in the opening 43 of the cover 40, while the stay 70 is not mounted on the cover 40. Wherein the pair of slides 62 enter the corresponding slide slots 44 (see fig. 8) so that the slides 60 can move back and forth along the slide slots 44. The resilient arm 64 then presses against the top wall 41 behind the opening 43. The free end 32 of the locking head 30 is embedded in the connection port 63 and the top surfaces of the two are substantially coincident. In detail, in the initial state, the upwardly facing inclined surface 340 (see fig. 4) of the side projection 34 of the locking head 30 is abutted against the downwardly facing inclined surface 630 (see fig. 13) in the connection port 63. When the slider 60 moves backward, the downward inclined surface 630 can push the side bump 34 to displace downward along the downward inclined surface 630, and further drive the lock 30 to sink, so as to unlock.

In addition, as shown in fig. 10 and 11, after the slider 60 is combined with the cover 40, the protruding buckle 620 of each sliding strip 62 enters the recess 45 of the corresponding sliding slot 44 to control the moving distance of the slider 60. In detail, the length of the recess 45 is slightly greater than the length of the tab 620, thus allowing the tab 620 to slide properly within the recess 45. In an initial state, the tab 620 abuts against the front surface of the recess 45. When the slider 60 is pulled rearward, the cam 620 can move rearward with the slider 60, and the resilient arms 64 are compressed. When the external force is released, the elastic arm 64 returns to the original state, and the button 620 moves forward and is then blocked by the front surface of the recess 45, thereby controlling the forward moving distance of the slider 60 and preventing the slider 60 from being excessively advanced.

In this embodiment, the sliding member 60 is made of plastic. The elastic arm 64 of the slider 60 was tested to have a total forward force of 1.7N and a plastic bending strength of 260MPa when compressed by 1.40mm, and the plastic was free of deformation.

As shown in fig. 13 and 14, the brace 70 has at least one hook 71 at a front end thereof, and can extend into the notch 610 of the slider 60, thereby connecting the brace 70 and the slider 60 in a horizontal direction. In this embodiment, the hook 71 is a vertical piece bent vertically downward. Two hooks 71 are formed at the front end of the stay 70.

As shown in fig. 13 and 14, the brace 70 further has a middle groove 72 formed at a middle position thereof, a pair of front flanks 73 near a front end of the brace 70, and a pair of rear flanks 74 near a rear end of the brace 70. In this embodiment, the pull-tab 70 also has a pull-tab 75 at its rear end.

As shown in FIG. 2, the brace 70 is assembled on the top surface of the cover 40 and connected to the slider 60. In detail, the hook 71 of the pull-bar 70 is engaged into the notch 610 (see fig. 14) of the slider 60, the front wing 73 is engaged into the corresponding front limiting slot 411, the rear wing 74 is engaged into the corresponding rear limiting slot 412, and the limiting protrusion 410 extends out of the middle slot 72. The pull ring 75 extends out of the cover 40 for convenient operation by a user.

As shown in fig. 19, when the stay 70 is pulled rearward, the slider 60 moves rearward, which can force the lock head 30 to sink, and in particular, force the two shoulders 33 (see fig. 4) of the lock head 30 to sink, the plug connector 1 can be smoothly inserted into the receptacle connector 2. When the stay 70 is released, the slider 60 moves forward by the automatic rebound of the elastic arm 64 (see fig. 16) back to the original state, the lock head 30 is released, and is lifted upward to the original state, and the two shoulders 33 thereof can be caught on the stoppers 202 (see fig. 18) inside the receptacle connector 2. At this time, the plug connector 1 is not withdrawn from the receptacle connector 2.

When unlocking is required, as shown in fig. 19, only the pull-out tab 70 needs to be pulled backward to force the lock head 30 (see fig. 2) to sink, and the two shoulders 33 can be withdrawn backward without being blocked by the stopper 202 (see fig. 18) of the receptacle connector 2, thereby smoothly extracting the plug connector 1.

In summary, the plug connector 1 with the unlocking function of the present invention makes the sliding member 60 move backward through the pull bar 70 to force the lock head 30 to sink, thereby achieving unlocking. When the stay 70 is released, the lock head 30 is lifted up by the automatic return of the slider 60, thereby realizing locking. The locking and unlocking modes are safe, effective and convenient.

Claims

1. A plug connector with an unlocking function comprises a base, a signal transmission module arranged in the base, a lock head arranged on the base and a cover body arranged on the base; the lock head is provided with a fixed end fixed on the base, a free end positioned above the base and extending backwards, and two shoulders positioned between the fixed end and the free end and positioned above the base and capable of being buckled in a socket connector; the cover body is provided with a horizontal top wall and two symmetrical side walls perpendicular to the top wall;

the method is characterized in that: the free end of the lock head is provided with two symmetrical side protruding blocks; each side lug is provided with an upward inclined plane;

the cover body is formed with two sliding grooves, and a notch is formed in each sliding groove;

the plug connector also comprises an unlocking device; the unlocking device comprises a sliding piece which is slidably arranged on the cover body and is connected with the lock head, and a brace which is connected with the sliding piece;

the sliding piece is provided with a main body, a pair of sliding strips formed on two sides of the main body, a connecting port formed at the front end of the main body and an elastic arm formed at the rear end of the main body; a convex buckle which extends outwards is formed at the rear end of each sliding strip; the connecting port is provided with a pair of downward inclined surfaces which can be matched with the upward inclined surfaces; wherein the sliding strip enters the corresponding sliding groove, and the convex buckle enters the corresponding notch; the elastic arm is propped against the top wall of the cover body; the free end of the lock head is embedded into the connecting port; the upward inclined surface of the side lug is abutted against the corresponding downward inclined surface of the connecting port; wherein, the elastic arm is composed of a pair of inward curved arc sheets; the top surface contour of the connecting port is the same as that of the lock head;

the pull rod is pulled backwards, the sliding piece moves backwards, the elastic arm is compressed, the downward inclined surface can push the side protruding block to displace downwards, so that the lock head sinks, and unlocking is achieved; the pull-tab is released and the slider moves forward by the automatic rebound of the resilient arm and the lock returns upward to the original condition.

2. The plug connector with unlocking function according to claim 1, wherein: an opening is formed at the front end of the top wall of the cover body, and the two sliding grooves are formed at two sides of the opening; the sliding piece is arranged in the opening of the cover body.

3. The plug connector with unlocking function according to claim 1, wherein: at least one notch is formed on the top surface of the main body of the sliding piece and is positioned behind the connector;

the brace has at least one hook at its front end, which extends into the notch.

4. A plug connector with an unlocking function as claimed in claim 3, wherein: a limit convex strip, a pair of front limit grooves and a pair of rear limit grooves are also formed on the top wall of the cover body;

the brace has a central slot, a pair of front flanks, and a pair of rear flanks; the front side wing is clamped into the corresponding front limit groove, the rear side wing is clamped into the corresponding rear limit groove, and the limit convex strip extends out of the middle groove.

5. A plug connector with an unlocking function as claimed in claim 3, wherein: the pull-tab has a pull-tab at its rear end.

6. The plug connector with unlocking function according to claim 1, wherein: the two side lugs and the two shoulders are symmetrically formed at two sides of the free end; the upward slope is the front surface of the side bump.

7. The plug connector with unlocking function according to claim 1, wherein: the base is provided with a U-shaped containing part and an inverted U-shaped plug part communicated with the containing part.

8. The plug connector with unlocking function according to claim 7, wherein: the signal transmission module is provided with a front end part, a rear end part, a plurality of electric contact heads which are positioned at the front end part and are exposed outside at the bottom surface of the front end part, and a cable which extends out of the rear end part, wherein the front end part extends into the plug part, the electric contact heads are exposed outside from the bottom surface of the plug part, the rear end part is placed in the containing part, and the cable extends out of the base.