CN212392437U

CN212392437U - Connector with a locking member

Info

Publication number: CN212392437U
Application number: CN202020626030.4U
Authority: CN
Inventors: A·贝内克; 丁传生; C·尤塞尔
Original assignee: Harting Electric GmbH and Co KG
Current assignee: Harting Electric Stiftung and Co KG
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-01-22
Anticipated expiration: 2030-04-23
Also published as: DE202021101250U1

Abstract

The utility model provides a connector, include: the plug comprises a plug cover shell, and a cable hole for connecting a cable is formed in the top wall of the plug cover shell; a receptacle comprising a receptacle housing; and a pair of locking assemblies symmetrically disposed on both sides of the connector; each locking assembly is composed of a fixed locking part located on the side wall of the plug housing and a movable locking part located on the side wall of the socket housing; after the plug is plugged with the socket along the plugging direction, the movable locking part can be locked on the fixed locking part, so that the connector is in a locking state; it enables unlocking of the connector by pressing an unlocking button or pulling a cable, thereby avoiding damage to the connector, and enables a waterproof rating of IPX 8.

Description

Connector with a locking member

Technical Field

The utility model relates to a connector, normal operating can realize the connector separation through pressing both sides release button, also can break away from the unblock through the automation of applying external force pulling cable realization connector to can realize IPX 8's waterproof grade.

Background

Existing connectors, particularly heavy duty connectors used in high speed railways and the like, include a receptacle and a plug having a locking assembly that provides superior locking performance. However, sometimes the plug is forgotten to be unlocked from the socket, for example, a carriage loaded with the socket is driven away, and the plug plugged on the socket cannot be timely released due to the locking of the locking assembly, so that the connector is damaged. But also the watertight seal at the connection between the plug and the socket is insufficient.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the utility model is to provide a connector, it can realize making the connector unblock through pressing the unblock button or pulling the cable to avoid damaging the connector, and can realize IPX 8's waterproof grade.

According to an aspect of the present invention, there is provided a connector, including: the plug comprises a plug cover shell, and a cable hole for connecting a cable is formed in the top wall of the plug cover shell; a receptacle comprising a receptacle housing; and a pair of locking assemblies symmetrically disposed on both sides of the connector; each locking assembly is composed of a fixed locking part located on the side wall of the plug housing and a movable locking part located on the side wall of the socket housing; after the plug is plugged with the socket along the plugging direction, the movable locking part can be locked on the fixed locking part, so that the connector is in a locking state; wherein the connector can be unlocked by pulling the cable against the plugging direction.

In one embodiment, the fixed latch includes two brackets formed on a sidewall of the plug housing and a latch receptacle located between the two brackets.

In one embodiment, the latch receptacles include a floor plate secured to a sidewall of the plug housing, wherein the floor plate has a detent opening; and two side plates, wherein each side plate is arranged to cling to the inner wall of the corresponding bracket so as to form a cam surface, and each side plate is provided with a lock catch seat sliding groove. Preferably, the base plate is fixed to the side wall of the plug housing by screwing, welding, riveting, or the like. More preferably, the base plate further has a fixing hole through which a fixing member such as a screw is screwed to the side wall of the housing. Preferably, the cam surface is a slope of the side plate. The lock catch base sliding groove of the side plate extends along the vertical direction, and the extension line of the lock catch base sliding groove is intersected with the extension line of the inclined plane.

In one embodiment, the movable latching portion includes a bracket formed on a side wall of the socket housing, and a lever-type latching member pivotably mounted on the bracket, wherein the lever-type latching member is latchable in the latching seat. Preferably, the bracket has two lugs opposite each other, each lug having a hole.

In one embodiment, the lever type latch member includes a substantially U-shaped latch plate, both side walls of which are formed with a first slide groove and a mounting hole, and a free end of which is formed with a pressing member; the two ends of the movable pin are respectively inserted into and extend out of the first sliding groove; a fixing pin, both ends of which are respectively inserted through the mounting hole and further through the holes of the bracket; the unlocking button is fixed on the movable pin; a coil spring connected between the movable pin and the fixed pin; and a detent spring mounted on the fixing pin and having a detent tongue.

In one embodiment, after the plug and the receptacle are plugged together, the lever-type locking member can pivot about the fixed pin toward the fixed locking portion until the movable pin abuts against the cam surface of the side plate at both ends, and then the pressing member is pressed so that the movable pin slides along the cam surface, and when sliding to the apex of the cam surface, the movable pin slides into the locking seat slide groove under the elastic force of the coil spring while the stopper tongue of the stopper spring is caught in the stopper opening of the bottom plate, whereby the lever-type locking member is locked in the locking seat, achieving the locked state of the connector.

In one embodiment, when it is desired to unlock the connector, pressing the unlocking button in the plugging direction causes the movable pin to slide out of the latch receptacle slide slot and along the cam surface, thereby releasing the lever-type latch member from the latch receptacle.

In one embodiment, when it is desired to unlock the connector, the cable on the top wall of the plug housing is pulled against the plugging direction so that the plug together with the latch seat thereon is moved against the plugging direction, wherein the movement of the stop opening causes the stop tongue snapped therein to rotate about the fixed pin and move out of the stop opening while the movable pin slides out of the latch seat slide slot, thereby releasing the lever latch from the latch seat.

In one embodiment, the side wall of the latch plate is further formed with a second sliding groove and a fixing hole; the unlocking button is implemented in a spring shape and is provided with a pressing part and positioning parts positioned on two sides of the pressing part, the positioning parts are bent into a ring shape to be sleeved on the movable pin, and the tail end of the unlocking button is inserted into the second sliding groove; the stop spring comprises the stop tongue and two positioning parts positioned on two sides of the stop tongue, the positioning parts are bent to be annularly sleeved on the fixing pin, and the tail end of the stop spring is inserted into the fixing hole. Preferably, the pressing portion is formed in an M-shape, and a trailing end of the unlock button is slidable in the second slide groove. Preferably the retaining spring is a torsion spring.

In one embodiment, the peripheral wall of the receptacle housing forms a groove within which a sealing ring is received, enabling a waterproof rating of IPX8 when the plug and receptacle are plugged together.

The utility model discloses in provide a novel connector, the design through the locking subassembly of connector realizes two kinds of unblock modes, promptly, normally presses the unblock and stimulates the unblock to avoid the unexpected damage of connector. The locking assembly additionally provides a water-resistant effect by providing locking between the plug and the receptacle, in combination with a sealing ring disposed between the plug and the receptacle to achieve a water-resistant rating of IPX 8.

Drawings

In the drawings:

fig. 1 is a perspective view of a connector according to the present invention in a locked state;

fig. 2 is a perspective view of an unplugged connector according to the present invention;

fig. 3 is an exploded view of a receptacle of a connector according to the present invention;

fig. 4 is a perspective view of a receptacle of a connector according to the present invention; and

fig. 5 is an exploded view of a plug of a connector according to the present invention.

Detailed Description

The present invention will be described in detail with reference to the following specific examples and the accompanying drawings, wherein the described examples are only illustrative of the preferred embodiments and should not be construed as limiting the scope of the present invention in any way. The present invention can be modified in various ways by those skilled in the art according to the design idea and the disclosure of the present invention, and the modifications are also covered by the scope of the present invention.

Fig. 1 shows a locked state of a connector according to the present invention, which connector, in particular a heavy-duty connector, comprises a plug 1 and a socket 2 that are mated with each other. The plug 1 and the receptacle 2 are locked therebetween by a pair of locking assemblies. For example, the locking assembly is disposed on a narrow, i.e., lateral, side of the connector.

As shown in fig. 1, the plug 1 includes a plug housing 10 having a cable hole 11 for connecting a cable (not shown) in a top wall thereof. As shown in fig. 5, the housing 10 encloses a receiving chamber 100, a holding frame 110 is received in the receiving chamber 100, and a module 120, such as a female module, is inserted into the holding frame 110.

As shown in fig. 1, the receptacle 2 includes a receptacle housing 20, which, as shown in fig. 3 and 4, encloses a receiving cavity 200, in which receiving cavity 200 a holding frame 210 is received, and in which holding frame 210 a module 220, for example a male module, is inserted. The bottom of the socket 2 is provided with a flange provided with mounting holes for fixing the socket to equipment or a wall or the like. A groove 21, in which a rectangular seal ring 22 is accommodated, is formed on the peripheral wall of the receptacle housing 20, in particular, near the opening of the receptacle housing.

When the plug 1 is plugged onto the socket 2 in a plugging direction (as indicated by the arrow in fig. 1), the housing 10 of the plug 1 surrounds the socket housing 20, so that the sealing ring 22 accommodated in the recess 21 is located between the socket housing 20 and the housing 10. While the locking assembly on the narrow side of the connector (i.e., plug and receptacle) locks the plug and receptacle together, not only prevents inadvertent disengagement of the plug and receptacle, but also provides additional waterproofing, thereby achieving the waterproof rating of IP X8.

As shown in fig. 2, each locking assembly is composed of a fixed locking portion 3 of a side wall located at a narrow side of the plug housing 10 and a movable locking portion 4 of a side wall located at a narrow side of the receptacle housing 20.

The fixing latch portion 3 includes two brackets 31 formed on the side wall of the plug housing and opposed to each other. The section of the bracket is in a right trapezoid shape; a latch holder 32, in particular a latch holder, located between the two brackets 31 is clamped between the two brackets. Specifically, the latch holder 32 includes a bottom plate 321 fixed to a side wall of the plug housing and two side plates 322 arranged perpendicular to the bottom plate. The base plate 321 has a stopper opening 325, preferably a rectangular or square opening, at a lower portion and a screw hole 326 at an upper portion, the stopper opening 325 and the screw hole 326 (see fig. 5) corresponding to a recess and a screw hole on a side wall of the housing to screw the base plate to the side wall of the housing by a screw. The base plate can of course also be fastened to the side walls of the housing by other fastening means, such as welding, riveting, etc. The side plates 322 are arranged against the inner wall of the respective bracket 31, wherein the bracket 31 protrudes beyond the side plate 322 in a direction perpendicular to the narrow side wall of the housing, the inclined surfaces of the side plates form cam surfaces 323, and the side plates have latch seat slide slots 324 parallel to the narrow side wall of the housing, as shown in the figure, the cam surfaces, i.e. the extension lines of the inclined surfaces, intersect the extension lines of the latch seat slide slots.

The movable latching portion 4 includes a bracket 41 formed on a side wall, i.e., a narrow side wall, of the receptacle housing and a lever-type latching piece 42 pivotably mounted on the bracket. The bracket 41 has two lugs 411 on which holes 412 (fig. 3) are formed. The lever-type locking member 42 includes a generally U-shaped locking plate 43, both side walls of which are formed in this order (i.e., from a fixed end to a free end of the locking plate) with a mounting hole 431, a fixed hole 432, a first slide groove 433, and a second slide groove 434 (see fig. 3), and the free end of which is formed with a pressing member 49 extending opposite to the side wall of the locking plate 43. The lever-type locking piece 42 further comprises a movable pin 45, and two ends of the movable pin are respectively inserted into and extend out of the first sliding grooves 433; the fixing pins 46, both ends of which are inserted through the mounting holes 433 and further through the holes 412 of the bracket, respectively, may be fixed to the bracket 41 from both ends by nuts. The lever-type locking member 42 further includes an unlocking button 44 fixed to the movable pin 45, where the unlocking button is implemented in a spring shape having an M-shaped pressing portion 441, positioning portions 442 on both sides of the pressing portion, the positioning portions being bent in a ring shape to fit over the movable pin 45, a trailing end 443 of the unlocking button being inserted into the second sliding slot 434 and being slidable therein, and the unlocking button being prevented from pivoting about the movable shaft; a coil spring 47 connected between the movable pin and the fixed pin; and a detent spring 48 which is installed on the fixing pin and has a detent tongue 481, two positioning parts 482 which are positioned at both sides of the detent tongue, are bent to be annularly fitted on the fixing pin, and a rear end 483 of the detent spring is inserted into the fixing hole 432. The retaining spring is embodied here as a torsion spring.

The locking process of the locking assembly is described in detail below.

After the plug 1 and the receptacle 2 are plugged together, the lever-type locking piece 42 can pivot about the fixed pin 46 toward the fixed locking part 3 until the movable pin 45 abuts against the cam surface 323 of the side plate 322 at both ends, and then the pressing piece 49 is pressed to slide the movable pin along the cam surface while the coil spring 47 is compressed to accumulate the elastic force, and when the movable pin slides to the apex of the cam surface (i.e., the intersection of the cam surface and the locking seat slide groove), the movable pin 45 slides into the locking seat slide groove 324 under the elastic force of the coil spring 47 while the stopper tongue 481 of the stopper spring 48 is caught in the stopper opening 325 of the bottom plate 321, whereby the lever-type locking piece 42 is locked in the locking seat 32, and the locked state of the connector is achieved.

The unlocking process of the locking assembly is described in detail below.

First, a conventional press unlocking process is described. When it is desired to unlock the connector, pressing the unlocking button 44 in the plugging direction causes the movable pin 45 to slide out of the latch holder slide groove 324 and along the cam surface 322, which is opposite to the locking process, specifically, the pressing force causes the movable pin to slide along the latch holder slide groove while the coil spring 4 is compressed to accumulate the elastic force, and when sliding to the apex of the cam surface, the movable pin slides on the cam surface by the elastic force of the coil spring, thereby releasing the lever-type latch member 42 from the latch holder 32.

Next, an unconventional pulling unlocking process is described. When it is desired to unlock the connector, the cable on the top wall of the plug housing 10 is pulled against the plugging direction, so that the plug 1 together with the latch socket 32 thereon is moved against the plugging direction, wherein the movement of the stop opening 325 causes the stop tongue 481 snapped therein to rotate about the fixed shaft 46 and move out of the stop opening, while the movable pin 45 is slid out of the latch socket slide groove 324 due to the movement of the latch socket slide groove 324, thereby releasing the lever-type latch piece 42 from the latch socket 32.

The connector according to the present invention has been described in detail, but the above-described embodiments are merely preferred examples, and should not be construed as limiting the structure of the connector according to the present invention. Those skilled in the art can make corresponding modifications to the specific structure of the connector according to the described embodiments of the present invention.

Claims

1. A connector, comprising:

the plug (1) comprises a plug cover (10), and a cable hole (11) for connecting a cable is formed in the top wall of the plug cover;

a socket (2) comprising a socket housing (20); and

a pair of locking assemblies symmetrically disposed on both sides of the connector;

it is characterized in that the preparation method is characterized in that,

each locking assembly is composed of a fixed locking part (3) located on a side wall of the plug housing (10) and a movable locking part (4) located on a side wall of the socket housing (20);

after the plug is plugged with the socket along the plugging direction, the movable locking part can be locked on the fixed locking part, so that the connector is in a locking state;

wherein the connector can be unlocked by pulling the cable against the plugging direction.

2. The connector of claim 1,

the fixed locking part (3) comprises two brackets (31) formed on the side wall of the plug housing (10) and a latch seat (32) located between the two brackets.

3. The connector of claim 2,

the latch base (32) comprises a base plate (321) fixed on the side wall of the plug housing (10), wherein the base plate (321) is provided with a stop opening (325); and two side plates (322), wherein each side plate is arranged against the inner wall of the corresponding bracket (31) to form a cam surface (323), and each side plate is provided with a lock catch seat sliding groove (324).

4. The connector of claim 3,

the active locking portion (4) includes a bracket (41) formed on a side wall of the socket housing (20), and a lever-type locking piece (42) pivotably mounted on the bracket, wherein the lever-type locking piece (42) is lockable in the locking seat (32).

5. The connector according to claim 4, wherein the lever-type locking member (42) comprises a substantially U-shaped locking plate (43) whose both side walls are formed with a first slide groove (433) and a mounting hole (431), and whose free end is formed with a pressing member (49); the two ends of the movable pin (45) are respectively inserted into and extend out of the first sliding groove; a fixing pin (46) having both ends inserted through the mounting hole (431) and further through the hole (412) of the bracket, respectively; an unlocking button (44) fixed on the movable pin; a coil spring (47) connected between the movable pin and the fixed pin; and a detent spring (48) mounted on the fixing pin and having a detent tongue (481).

6. The connector according to claim 5, wherein after the plug (1) is plugged with the socket (2), the lever-type locking member (42) can pivot about the fixed pin (46) toward the fixed lock portion (3) until the movable pin (45) abuts the cam surface (323) of the side plate (322) at both ends, and then the pressing member (49) is pressed so that the movable pin slides along the cam surface, and when sliding to the apex of the cam surface, the movable pin slides into the locking seat slide groove (324) under the elastic force of the coil spring (47) while the stopper tongue (481) of the stopper spring (48) is caught in the stopper opening (325) of the bottom plate (321), whereby the locking lever-type member (42) is locked in the locking seat (32), a locked state of the connector is achieved.

7. The connector of claim 6, wherein when it is desired to unlock the connector, pressing the unlocking button (44) in the plugging direction causes the movable pin (45) to slide out of the latch receptacle slide slot (324) and along the cam surface, thereby releasing the lever-type latch (42) from the latch receptacle (32).

8. Connector according to claim 6, characterized in that when it is desired to unlock the connector, the cable on the top wall of the plug housing (10) is pulled against the plugging direction so that the plug (1) together with the latch socket (32) thereon is moved against the plugging direction, wherein the movement of the stop opening (325) causes the stop tongue (481) snapped therein to rotate about the fixed pin (46) and move out of the stop opening, while the movable pin (45) slides out of the latch socket slide groove (324), thereby releasing the lever-type latch (42) from the latch socket (32).

9. The connector according to claim 5, wherein the side wall of the latch plate (43) is further formed with a second slide groove (434) and a fixing hole (432); the unlocking button (44) is implemented in a spring shape, and has a pressing portion (441), positioning portions (442) located on both sides of the pressing portion, the positioning portions being bent in a ring shape to be fitted over the movable pin (45), and a trailing end (443) of the unlocking button being inserted into the second sliding groove (434); the retaining spring (48) comprises the retaining tongue (481), two positioning parts (482) on both sides of the retaining tongue, the positioning parts being bent to be looped over the fixing pin (46), and a rear end (483) of the retaining spring being inserted into the fixing hole (432).

10. Connector according to any of claims 1-9, characterized in that the peripheral wall of the socket housing (20) forms a groove (21) in which a sealing ring (22) is accommodated, so that when the plug and the socket are plugged together, a waterproof rating of IPX8 is achieved.