CN110611222A - Rectangular connectors and their plugs and sockets - Google Patents

Abstract

The invention relates to a rectangular connector and its plug and socket. The rectangular connector includes a plug and a socket. The plug is provided with a plug fixing hole, and the socket is provided with a socket fixing hole. The rectangular connector also includes a plug fixing hole and a The threaded fasteners used to fasten the plug and socket in the socket fixing hole, the socket is provided with a locking surface facing away from the plug-in end, and the plug is provided with a threaded fastener before the plug and socket are fastened. Locking hooks that cooperate with the locking surface to pre-lock the plug and the socket, when the plug and the socket are in the pre-locked state, the plug fixing holes and the socket fixing holes are aligned with each other. Before the plug and socket are fastened and assembled by threaded fasteners, the plug and socket are pre-locked through the locking hook on the plug and the locking surface on the socket. At this time, the spring in the plug no longer works, so that The threaded fastener will not tilt the connector during the process of locking the plug and socket, ensuring that the connector will not be damaged.

Description

Rectangular connectors and their plugs and sockets

technical field

The invention relates to a rectangular connector and its plug and socket.

Background technique

In the field of communication technology, in order to realize the connection between circuits, a connector is generally required, that is, the connector is used to connect two required circuits, so as to realize the communication between the whole circuits. A rectangular connector in the prior art generally includes a rectangular male plug and a rectangular female socket, and the rectangular male plug and the rectangular female socket are fixedly connected by locking screws. For example, the background technology of the Chinese invention patent with the application publication number CN106981773A discloses the double-bolt locking structure of the rectangular connector in the prior art, that is, a pair of locking bolts and locking bolts are respectively arranged on both sides of the rectangular connector. Nuts are used to lock the plug and socket by screwing the locking bolts and locking nuts on both sides of the connector, and the aforementioned locking bolts and locking nuts can also be replaced by screws and threaded holes. During the process of alternately tightening the above-mentioned rectangular connectors with double bolts, the axial return spring inside the plug will be deformed unevenly, causing the contacts inside the rectangular connector to be easily tilted during the mating process, resulting in damage to the contacts .

Contents of the invention

The purpose of the present invention is to provide a rectangular connector to solve the problem that the axial return spring inside the plug will be deformed unevenly during the process of alternately tightening the rectangular connector in the prior art through double bolts, resulting in The contact pieces are prone to be inclined during the mating process; the purpose of the present invention is also to provide a plug and socket for the rectangular connector.

In order to achieve the above object, the technical solution of the rectangular connector of the present invention is:

The rectangular connector includes a plug and a socket. The plug is provided with a plug fixing hole, and the socket is provided with a socket fixing hole. The rectangular connector also includes threads that are installed in the plug fixing hole and the socket fixing hole to fasten the plug and the socket. The fastener is characterized in that: the socket is provided with a locking surface facing away from the plug-in end, and the plug is provided with a locking surface used to lock and cooperate with the locking surface before the threaded fastener fastens the plug and the socket so that the plug The lock hook is pre-locked with the socket, and the plug fixing hole and the socket fixing hole are aligned with each other when the plug and the socket are in a pre-locked state.

The beneficial effect is: compared with the prior art, before the plug and the socket are fastened and assembled by threaded fasteners, the plug and the socket are pre-locked through the lock hook on the plug and the locking surface on the socket. At this time, the spring in the plug no longer works, so that the threaded fastener will not tilt the connector during the process of locking the plug and socket, so that the connector will not be damaged. In addition, if the rectangular connector of the present invention is only used for testing in a static environment, it only needs to be pre-locked by the locking hook, and the locking and unlocking are more convenient; if the rectangular connector is used in a vibration environment, it needs When the locking hook is pre-locked, the plug and socket are tightly assembled by locking screws to ensure the stability of the connection between the plug and the socket in a vibration environment.

The plug is hinged with a lock arm, the lock hook is arranged on the lock arm, and there is an elastic force provided between the plug and the lock arm to provide elastic force to the lock arm after the plug and the socket are inserted so that the lock hook and the locking surface lock Tight fitting elastics. Ensure the stability of the lock hook and locking surface locking fit.

The plug-in section of the defined plug is the front end, the lock hook is arranged at the front end of the lock arm, and the rear end of the lock arm is provided with an operation part that releases the lock hook from the locking surface to unlock the plug and socket, and the hinge of the lock arm The position is set between the lock hook and the operation part. An operation part is arranged on the lock arm to facilitate the unlocking of the plug and the socket.

The plug includes a movable sleeve and a plug outer shell arranged outside the movable sleeve, the plug fixing holes and locking hooks are all arranged on the plug outer shell, and the socket includes a socket rear shell and a socket rear shell arranged on the socket rear shell. The socket front shell on the socket, the socket fixing hole is set on the socket rear shell, and the locking surface is set on the socket front shell. Fits most rectangular fiber optic connectors.

The socket is provided with a flange for fixing the socket on the equipment panel, the flange is used to provide a socket boss on the side facing the plug, and a plug boss is provided on the plug corresponding to the socket boss , the plug fixing hole is arranged on the plug boss, and the socket fixing hole is arranged on the socket boss. By arranging the plug boss on the plug and the socket boss on the socket, the plug and the socket can be fastened and assembled through locking screws.

To achieve the above object, the technical scheme of the plug of the present invention is:

The plug is provided with a plug fixing hole for fastening and fitting with the socket fixing hole through a threaded fastener to fasten the plug and the socket, and the plug is also provided with a threaded fastener for fastening the plug and the socket A shackle that previously engages the locking face of a receptacle to pre-lock the plug and receptacle.

The beneficial effect is: compared with the prior art, the lock hook on the plug is pre-locked with the locking surface of the corresponding socket, so that the spring in the plug no longer works, so that the plug fixing hole and the socket fixing hole are tightened by threads. During the process of locking the plug and the socket by the firmware, the connector will not be tilted to ensure that the connector will not be damaged.

A lock arm is hinged on the plug, the lock hook is arranged on the lock arm, and there is a device between the plug and the lock arm for providing elastic force to the lock arm after the plug and the socket are inserted so that the lock hook and the locking surface Lock fit elastics. Ensure the stability of the lock hook and locking surface locking fit.

Define the plug-in section of the plug as the front end, the lock hook is arranged at the front end of the lock arm, and the rear end of the lock arm is provided with an operation part that releases the lock hook from the locking surface to unlock the plug and socket. The hinged position of the lock arm It is installed between the lock hook and the operation part. An operation part is arranged on the lock arm to facilitate the unlocking of the plug and the socket.

To achieve the above object, the technical solution of the socket of the present invention is:

The socket is provided with a socket fixing hole for fastening the plug with the socket through a threaded fastener to fasten the plug with the socket, and the socket is also provided with a threaded fastener for fastening the plug and the socket The locking surface that previously engaged the locking hooks of the plug to pre-lock the plug and socket.

The beneficial effect is: compared with the prior art, the locking surface on the socket is pre-locked with the locking hook of the corresponding plug, so that the spring in the plug no longer works, so that the plug fixing hole and the socket fixing hole are tightened by threads. During the process of locking the plug and the socket by the firmware, the connector will not be tilted to ensure that the connector will not be damaged.

The socket is provided with a locking groove, and one of the groove walls of the locking groove constitutes the locking surface. It is avoided to provide a protrusion on the socket, and the side of the protrusion facing away from the plug-in end is used as a locking surface, which is beneficial to reduce the volume of the socket.

Description of drawings

Fig. 1 is the structural representation of the socket of rectangular connector of the present invention;

Fig. 2 is a schematic structural view of a plug of a rectangular connector of the present invention;

Fig. 3 is a schematic structural view of the plug and socket of the rectangular connector of the present invention before being plugged;

Fig. 4 is a schematic structural view of the plug and socket of the rectangular connector of the present invention during insertion;

Fig. 5 is a schematic diagram of the structure of the plug and socket of the rectangular connector of the present invention after mating.

In the figure: 1-socket rear shell; 2-socket front shell; 3-socket dustproof door; 4-guide pin; 5-first socket fixing screw; 6-socket rear cover; 7-socket contact; 8 -ribbon; 9-second socket fixing screw; 10-gasket; 11-flange; 12-socket boss; 13-plug boss; 14-lock screw; 15-lock hook; 16-lock arm ; 17-hinge shaft; 18-operating part; 19-plug shell; 20-plug rear shell; 21-sealing body; 22-optical cable; Second plug fixing screw; 26-spring; 27-movable sleeve; 28-plug front shell; 29-guide hole; 30-plug contact piece; 31-plug dustproof door; 32-locking groove; Locking surface; 34-limit stopper.

Detailed ways

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

The specific embodiment of the rectangular connector of the present invention, as shown in Figures 1 to 3, the rectangular connector includes a plug and a socket, and the socket includes a socket housing and a socket contact 7 arranged in the socket housing, in this embodiment The socket contact is an MT contact, which can be 12 cores or 24 cores, and the tail of the socket contact 7 is provided with a ribbon fiber 8 . As shown in Figure 1, the socket housing includes a socket front housing 2 and a socket rear housing 1, a sealing ring is arranged between the socket front housing 2 and the socket rear housing 1, and the two are fixed by the first socket fixing screw 5 Connection, the socket rear housing 1 is provided with a socket rear cover 6 fixedly connected with the second socket fixing screw 9, and the second socket fixing screw 9 is provided with a gasket 10 to increase the stability of the second socket fixing screw. The first socket fixing screws 5 and the second socket fixing screws 9 are arranged in pairs to ensure the stability of the socket. The socket contact piece 7 is fixed on the socket back cover 6, and the rear part of the socket back cover 6 is provided with a square hole for the tape fiber 8 to enter, so as to realize rapid installation on site by the user. The socket back cover 6 is also provided with guide pins 4 cooperating with the guide holes 29 on the plug, as positioning and guidance during docking, so as to ensure that the plug does not deflect when mating with the socket, and the guide pins 4 are arranged in pairs so that Ensure the stability of the plug and socket mating. The rear part of the socket rear housing 1 is provided with a flange 11, the flange 11 is provided with a panel fixing hole for fixing the socket on the equipment panel, and the side of the flange 11 facing the plug is provided with a hole for connecting the plug. The socket boss 12 is provided with a plug fixing hole extending along the insertion direction on the socket boss 12, wherein the plug fixing hole is a threaded hole.

In this embodiment, the socket front housing 2 is provided with a locking groove 32, one of the groove walls of the locking groove 32 constitutes a locking surface 33, the number of locking grooves 32 is two and is arranged on the socket On the two opposite sides of the front housing 2 along the width direction, in this embodiment, the front end of the socket front housing 2 is provided with two convex keys, and the front end inner wall of the corresponding plug outer shell 19 is provided with key grooves, and the convex keys Prevent mis-insertion when the plug and socket are mated with the keyway. The socket front housing 2 is hinged with a socket dust-proof door 3 through a hinge shaft, and four groups of torsion springs are sleeved on the hinge shaft to provide elastic force so that the socket dust-proof door 3 can seal the socket front housing 2. In this embodiment, in order to To improve the dustproof effect, a sealing rubber ring is wrapped around the socket dustproof door 3 to improve the sealing performance.

As shown in Figure 2, the plug includes a plug housing and a plug contact 30 arranged in the plug housing, the plug housing includes a plug front housing 28 and a plug fixedly connected to the plug front housing 28 through a second plug fixing screw 25 Rear housing 20, plug front housing 28 and plug rear housing 20 are slidingly equipped with movable sleeve 27 on the outside, and plug dustproof door 31 is hinged on the front part inner wall of movable sleeve 27 by hinge shaft, and plug front housing 28 The front end of the plug is abutted against the plug dust-proof door 31, and four sets of torsion springs are sleeved on the hinge shaft to provide elastic force so that the plug dust-proof door 31 can seal the front housing 28 of the plug. In this embodiment, in order to improve the dust-proof effect, A sealing rubber ring is wrapped around the plug dustproof door 31 to improve the sealing performance. In this embodiment, a spring 26 is arranged between the movable sleeve 27 and the front housing 28 of the plug. The spring 26 is a rectangular spring matched with the front housing 28 of the plug. The sealing ring groove, when the plug and the socket are plugged in, the movable sleeve 27 and the socket front housing 2 are sealed by the sealing ring in the sealing ring groove, and the movable sleeve 27 tail is provided with a limit stopper 34, a limit stopper 34 Slidingly fitted on the plug rear housing 20 to prevent the movable sleeve 27 from coming out of the plug front housing 28 under the action of the spring 26 . The front end of the plug front housing 28 is provided with guide holes 29 arranged in pairs, and the guide holes 29 guide and cooperate with the guide pins 4 on the socket back cover 6 to ensure that the plug does not deflect when mating with the socket.

In this embodiment, the tail of the plug rear case 20 is provided with a plug rear cover 24, and a sealing body 21 is provided between the plug rear case 20 and the plug rear cover 24, and the plug rear cover 24 is fixed by the first plug fixing screw 23. The sealing body is fixed on the rear housing 20 of the plug, the tail of the plug contact 30 is connected with the optical cable 22 passing through the sealing body 21 , and the sealing body 21 plays a role of fixing and sealing the optical cable 22 .

In this embodiment, the outer side of the movable sleeve 27 and the plug rear shell 20 is also provided with a plug shell 19, and the front end of the plug shell 19 is provided with a plug boss 13, and the plug boss 13 has a plug penetrating along the insertion direction. The fixing hole, wherein, the plug fixing hole is a threaded hole, and the inner thread of the threaded hole is connected with a locking screw 14, and the locking screw 14 constitutes a threaded fastener. The plug housing 19 is hinged with a lock arm 16 at the rear of the plug boss 13 through a hinge shaft 17, and the lock arm 16 is provided with a locking surface 33 to lock and cooperate with the plug and the socket when the plug and the socket are plugged together so as to pre-lock the plug and the socket. Tight lock hook 15, hinge shaft 17 is sleeved with torsion spring, torsion spring constitutes an elastic member, and torsion spring can provide elastic force to lock arm 16 after plug and socket are inserted so that lock hook 15 and locking surface 33 lock The tight fit ensures the stability of the locking fit between the locking hook 15 and the locking surface 33 . In other embodiments, no torsion spring is arranged on the hinge shaft, and a tension spring is arranged on the end of the lock arm close to the lock hook or a compression spring is arranged on the end of the lock arm far away from the lock hook, so as to realize the lock between the lock hook and the locking surface. Tight fit. In other embodiments, the locking arm is a shrapnel, one end is fixed on the outer shell of the plug, and the other end is provided with a locking hook that is locked and matched with the locking surface on the front shell of the socket, that is, the locking hook is under the elastic action of the shrapnel itself. Fit tightly with the locking surface. In this embodiment, the insertion section of the plug is defined as the front end, the locking hook 15 is arranged on the front end of the locking arm 16, and the rear end of the locking arm 16 is provided with a locking hook 15 that is disengaged from the locking surface 33 so that the plug and the socket are unlocked. The operation part 18 and the hinge shaft 17 of the lock arm 16 are arranged between the lock hook 15 and the operation part 18, and the operation part 18 is arranged on the lock arm 16 to facilitate the unlocking of the plug and the socket. In this embodiment, there are two locking arms 16 and they are arranged symmetrically on both sides of the plug along the width direction, so as to ensure the stability when the plug and the socket are pre-locked. In other embodiments, one or more than three locking arms can be provided.

When the rectangular connector of the present invention is in use: as shown in Figure 3, it is the state when the plug and the socket are just plugged in, the socket dustproof door 3 and the plug dustproof door 31 are attached to each other and are not opened, and the plug outer shell 19 After the socket front housing 2 is guided by the convex key and the keyway, the front end of the socket front housing 2 is inserted between the plug housing 19 and the movable sleeve 27 and abuts against the step at the front end of the movable sleeve 27. At this time, the socket The front casing 2 and the movable sleeve 27 are hermetically connected through a sealing ring between the two. As shown in Figure 4, continue to plug the plug into the socket, at this time, the movable sleeve 27 is elastically retreated under the pushing action of the front housing 2 of the socket, and is always in contact with the socket by the force of the spring 26 in the process of retreating. The front end of the front housing 2 is sealed and connected; the plug front housing 28 pushes back the plug dust-proof door 31, and the plug dust-proof door 31 pushes back the socket dust-proof door 3 fitted therewith; the plug front housing 28 The front end can enter the front housing 2 of the socket. As shown in Figure 5, continue to push the plug and the socket for insertion, and after being guided by the guide pin 4 and the guide hole 29, the plug contact 30 and the socket contact 7 are inserted to realize the conduction of the optical path; at this time, through the lock arm The locking hook 15 of 16 and the locking surface 33 are locked and matched to realize the pre-locking of the plug and the socket. After the plug and the socket are pre-locked, the spring 26 will no longer work, and the plug will not pop out under the action of the spring 26 and can be locked. The screws provide a better locking environment when locking the plug and socket, and the fast assembly of the plug and socket can be realized only by tightening the locking screws on both sides. In addition, if the rectangular connector of the present invention is only used for testing in a static environment, it only needs to be pre-locked by the locking hook, and the locking and unlocking are more convenient; if the rectangular connector is used in a vibration environment, it needs When the locking hook is pre-locked, the plug and socket are tightly assembled by locking screws to ensure the stability of the connection between the plug and the socket under the vibration environment. The separation process of the plug and the socket is opposite to the insertion process, and will not be repeated.

The specific embodiment of the plug of the present invention, the structure of the plug in this embodiment is the same as that described in the specific embodiment of the above-mentioned rectangular connector, and will not be repeated here.

The specific embodiment of the socket of the present invention, the structure of the socket in this embodiment is the same as the socket described in the specific embodiment of the rectangular connector above, and will not be repeated here.

Claims (10)

1. Rectangular connector, including plug and socket, the plug is provided with a plug fixing hole, the socket is provided with a socket fixing hole, and the rectangular connector is also included in the plug fixing hole and socket fixing hole to fasten the plug and socket The assembled threaded fastener is characterized in that: the socket is provided with a locking surface facing away from the plug-in end, and the plug is provided with a locking surface for locking and cooperating with the locking surface before the threaded fastener tightens the plug and socket. The lock hook for pre-locking the plug and the socket, the plug fixing hole and the socket fixing hole are aligned with each other when the plug and the socket are in the pre-locking state. 2. The rectangular connector according to claim 1, wherein a locking arm is hinged on the plug, the locking hook is arranged on the locking arm, and a plug and a socket are arranged between the plug and the locking arm. It is an elastic member that provides elastic force to the lock arm after insertion so that the lock hook and the locking surface are locked and matched. 3. The rectangular connector according to claim 2, characterized in that: the plug-in section of the defined plug is the front end, the locking hook is arranged at the front end of the locking arm, and the rear end of the locking arm is provided to lock the locking hook from the locking The operating part that comes out to unlock the plug and socket, and the hinged position of the lock arm is set between the lock hook and the operating part. 4. The rectangular connector according to any one of claims 1-3, characterized in that: the plug includes a movable sleeve and a plug outer shell arranged outside the movable sleeve, the plug fixing hole and the locking hook are both provided On the plug outer shell, the socket includes a socket rear shell and a socket front shell arranged on the socket rear shell, the socket fixing hole is set on the socket rear shell, and the locking surface is set on the socket front on the shell. 5. The rectangular connector according to any one of claims 1-3, characterized in that: the socket is provided with a flange for fixing the socket on the equipment panel, and the flange is used to face the plug. One side is provided with a socket boss, the position corresponding to the socket boss is provided with a plug boss, the plug fixing hole is arranged on the plug boss, and the socket fixing hole is arranged on the socket boss. 6. The plug is characterized in that: the plug is provided with a plug fixing hole for fastening and fitting with the socket fixing hole through a threaded fastener to fasten the plug and the socket, and the plug is also provided with a screw fastening hole Before the plug and socket are fastened by the parts, it locks and cooperates with the locking surface of the socket so that the plug and socket are pre-locked. 7. The plug according to claim 6, characterized in that: a lock arm is hinged on the plug, the lock hook is arranged on the lock arm, and there is a locking arm for connecting the plug and the socket between the plug and the lock arm. After connecting, it is an elastic member that provides elastic force to the lock arm so that the lock hook and the locking surface are locked and matched. 8. The plug according to claim 7, characterized in that: the plug-in section of the plug is defined as the front end, the locking hook is arranged at the front end of the locking arm, and the rear end of the locking arm is provided with a locking hook to escape from the locking surface. The operating part for unlocking the plug and the socket, the hinged position of the lock arm is set between the lock hook and the operating part. 9. The socket is characterized in that: the socket is provided with a socket fixing hole for fastening the plug with the socket through a threaded fastener, and the socket is also provided with a threaded fastening hole. The locking surface that locks and cooperates with the shackle of the plug before fastening the plug and socket to make the plug and socket pre-locked. 10 . The socket according to claim 9 , wherein a locking groove is provided on the socket, and one groove wall of the locking groove constitutes the locking surface. 11 .