Rectangular connector with combined quick locking structure

Abstract

The invention discloses a rectangular connector with a combined quick locking structure, and belongs to the technical field of connectors, the rectangular connector comprises a rectangular connector body and a switching locking member, the rectangular connector body is composed of a connecting female seat and an assembling plug end, and the connecting female seat comprises a female seat shell plate, an assembling seat and a protective end plate connected with the assembling seat. The switching locking piece is designed, in a dynamic buffering mode, only the positioning elastic claw with the energy absorption buffering piece at the front end is used for locking, the energy absorption spring allows the locking column to elastically slide in the positioning lock seat, vibration energy generated by rail transit can be effectively absorbed, connection looseness is prevented, and pin connection is protected; in the fixed connection mode, the two positioning elastic claws are inserted into the positioning lock seat to form rigid fastening connection, and the maximum connection strength and stability are provided; connection modes can be flexibly switched according to application positions (vibration intensity) and requirements (buffering or fastening) without replacing parts, and adaptability and reliability of the connector are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a rectangular connector with a combined quick-lock structure. Background Art

[0002] The board-to-board rectangular connector is a common electronic interconnection component, usually composed of two matching parts (plug and socket), in which the plug is equipped with a terminal, which is the core conductive part of the connector and is responsible for establishing an electrical connection between the plug and the socket. The pin-type terminal is a commonly used wiring structure, which cooperates with the socket to achieve signal connection, but the pin-type terminal is very likely to bend when pressed and collided, so that when plugging again, the pin needs to be adjusted in angle to ensure that it can be inserted, which makes the pin-type terminal inconvenient to use; Moreover, currently in the field of rail transit, board-to-board rectangular connectors used for signal transmission are mainly locked by a snap-on structure or a bolt-on structure. The structural connection strength of the snap-on structure is insufficient and cannot be adjusted according to the application position and mode requirements. Although the design of the bolt-on structure can adjust the connection strength, it requires tools to operate, and the bolts are prone to the risk of nuts falling off due to the vibration generated by rail running. Based on this, a rectangular connector with a combined quick-locking structure is proposed. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the prior art and to propose a rectangular connector with a combined quick-lock structure.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A rectangular connector with a combined quick-lock structure, comprising a rectangular connector body and a switching locking member, wherein the rectangular connector body is composed of a connecting female seat and an assembly plug end, the connecting female seat comprises a female seat shell plate, an assembly seat and a protective end plate connected to the assembly seat, the connecting female seat is provided with a plug pin, and the protective end plate is provided with a blocking protective member for storing force to protect the plug pin; The assembly plug includes a plug housing and a plug-in terminal seat connected to the plug housing, a socket for a plug pin to perform signal plugging is provided in the plug-in terminal seat, an adapter cover body adapted to the assembly seat is fixedly connected to the side wall of the plug housing, and an active release component for releasing the limit of the blocking protective member is provided on the adapter cover body; The switching locking member includes fixed end seats arranged on both sides of the mother seat shell plate, a locking column is arranged on the fixed end seat, a limit stop cap is arranged at the end of the locking column, two groups of positioning claws are sleeved on the locking column, the positioning claws located at the front end are connected to the locking column through an energy absorbing buffer, and positioning lock seats are arranged on both sides of the plug end shell.

[0005] As a preferred embodiment, the blocking protective member includes a force storage vertical groove opened on the protective end plate, the inner wall of the force storage vertical groove is connected to a force storage connecting seat via a force storage sliding member, and the force storage connecting seat is connected to an anti-folding rod via a torsion spring shaft.

[0006] As a preferred solution, the force storage vertical groove is arranged on the side wall of the protective end plate between adjacent plug pins, and the adjacent anti-bending rods are staggered to block the horizontal bending of the plug pins.

[0007] As a preferred embodiment, the force storage sliding member includes sliding openings opened on the side walls of the force storage vertical groove, and the force storage sliding blocks are fixedly connected to the two sides of the force storage connecting seat. The force storage sliding block is located in the sliding opening and connected to the inner wall of the sliding opening through a force storage spring.

[0008] As a preferred solution, a plug-in conductor is arranged in the socket, a spring-loaded copper core is arranged in the plug-in conductor, and a conductive ball which is matched and connected with the spring-loaded copper core is arranged on the plug-in pin.

[0009] As a preferred solution, the active release component includes an L-shaped locking socket opened on the side wall of the adapter cover, the end of the anti-folding rod is provided with a block plug that is compatible with the L-shaped locking socket, the adapter cover is fixedly connected to a blocking bar, the blocking bar is connected to a release member through a limit spring vertical block, the release member passes through the L-shaped locking socket and contacts with the block plug.

[0010] As a preferred solution, an active frame is slidably arranged on the adapting cover, the inner side wall of the active frame is inclined, and an inclined pressure plate is fixedly arranged on the side wall of the release member.

[0011] As a preferred embodiment, the energy absorbing buffer comprises an energy absorbing opening formed on the side wall of the locking column, and an energy absorbing cross bar is fixedly connected to the inner wall of the positioning claw at the front end, and the energy absorbing cross bar is located in the energy absorbing opening and connected to the inner wall of the energy absorbing opening through a resisting energy absorbing spring.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can effectively limit the horizontal (left and right) movement of the pins by locating the staggered anti-bending rods between adjacent pins, and absorb energy through the force storage spring when subjected to external force, thereby preventing the pins from bending up and down due to accidental force. During the plug-in process, the anti-bending rods will contact the inclined surfaces on both sides of the plug-in terminal before the pins, playing a guiding and positioning role, ensuring that the pins can be accurately and smoothly inserted into the corresponding sockets, simplifying the installation operation, and improving the plug-in success rate and efficiency.

[0013] 2. The present invention designs a switching locking piece. In the dynamic buffering mode, only the positioning claw with an energy-absorbing buffer piece at the front end is used for locking. The energy-absorbing spring allows the locking column to slide elastically in the positioning lock seat, which can effectively absorb the vibration energy generated by rail transit, prevent the connection from loosening, and protect the pin connection. It is more suitable for high vibration areas. In the fixed connection mode, both positioning claws are inserted into the positioning lock seat to form a rigid and fastened connection, providing maximum connection strength and stability. The connection mode can be flexibly switched according to the application location (vibration strength) and requirements (buffering or fastening) without replacing parts, which greatly improves the adaptability and reliability of the connector.

[0014] 3. The present invention significantly improves the reliability, stability and durability of the connector in the entire process before, during and after installation through the design of the anti-folding rod, dual-mode lock and spring-type copper core structure, and significantly improves the flexibility of installation. It can switch modes according to different positions and application requirements of rail transit (high vibration or rigid fixation), effectively overcoming the many shortcomings of traditional board-to-board rectangular connectors in rail transit applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the assembly state of a rectangular connector with a combined quick lock structure proposed by the present invention Figure 1 ; Figure 2 A schematic diagram of the assembly state of a rectangular connector with a combined quick lock structure proposed by the present invention Figure 2 ; Figure 3 A schematic diagram of the assembly state of a rectangular connector with a combined quick lock structure proposed by the present invention Figure 3 ; Figure 4 A schematic diagram of the connection state structure of a rectangular connector with a combined quick-lock structure proposed by the present invention; Figure 5 A schematic cross-sectional structure diagram of a force-storing vertical groove in a rectangular connector with a combined quick-lock structure proposed by the present invention; Figure 6 A schematic diagram of the assembly structure of a switching locking member in a rectangular connector with a combined quick-lock structure proposed by the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a switching locking member in a rectangular connector with a combined quick-lock structure proposed by the present invention; Figure 8 A schematic cross-sectional structure diagram of a rectangular connector with a combined quick-lock structure proposed by the present invention; Figure 9 for Figure 8 Schematic diagram of the enlarged structure at point A in the middle.

[0016] In the figure: 1, female socket shell plate; 2, assembly seat; 3, protective end plate; 4, plug-in pin; 5, plug end housing; 6, plug end seat; 7, adapter cover body; 8, fixed end seat; 9, locking column; 10, limiting cap; 11, positioning spring claw; 12, positioning lock seat; 13, energy storage vertical groove; 14, energy storage connection seat; 15, torsion spring shaft; 16, anti-fold rod; 17, sliding port; 18, energy storage slider; 19, plug-in conductor; 20, snap-ring type copper core; 21, conductive ball; 22, L-shaped locking socket; 23, block plug; 24, blocking strip; 25, limiting spring vertical block; 26, release part; 27, active frame body; 28, inclined surface pressure plate; 29, through energy absorption port; 30, energy absorption cross bar. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0020] Embodiment, refer to Figures 1 to 9A rectangular connector with a combined quick-lock structure includes a rectangular connector body and a switching locking member. The rectangular connector body is composed of a connecting female seat and an assembly plug end. The connecting female seat includes a female seat shell plate 1, an assembly seat 2 and a protective end plate 3 connected to the assembly seat 2. A plug pin 4 is provided on the connecting female seat. The plug pin 4 passes through the protective end plate 3, the assembly seat 2 and the female seat shell plate 1. One end of the plug pin 4 is connected to the assembly plug end, and the other end is connected to the centralized circuit. The protective end plate 3 is provided with a blocking protective member for storing power for the plug pin 4. Furthermore, the blocking protective member includes a force storage vertical groove 13 opened on the protective end plate 3, the inner wall of the force storage vertical groove 13 is connected to the force storage connecting seat 14 through a force storage sliding member, the force storage connecting seat 14 is connected to the anti-bending rod 16 through a torsion spring shaft 15, the force storage vertical groove 13 is arranged on the side wall of the protective end plate 3 between adjacent plug pins 4, and the adjacent anti-bending rods 16 are staggered, which can achieve blocking of horizontal bending of the plug pins 4.

[0021] It should be noted that the anti-folding rods 16 are staggered between adjacent plug pins 4, and can limit the left and right movement of the plug pins 4. Since the anti-folding rods 16 cannot move left and right, the plug pins 4 limited by them cannot move left and right, so it can avoid the plug pins 4 from tilting left and right when subjected to force. The anti-folding rods 16 are connected to the force storage vertical grooves 13 through force storage buffers, and can slide up and down. The plug pins 4 can be buffered and protected under the anti-folding rods 16 on both sides. When the plug pins 4 are subjected to deformation force, the anti-folding rods 16 on both sides will be subjected to force first to perform buffering protection, thereby avoiding the plug pins 4 from deforming up and down. Furthermore, the force storage sliding member includes a sliding opening 17 opened on the side walls of both sides of the force storage vertical groove 13, and a force storage sliding block 18 is fixedly connected to both sides of the force storage connecting seat 14. The force storage sliding block 18 is located in the sliding opening 17 and is connected to the inner wall of the sliding opening 17 through a force storage spring. The force storage spring applies resistance to the force storage sliding block 18, and when the anti-folding rod 16 is pressed, it will produce a buffering and energy absorption effect.

[0022] The advantages of adopting the above structure are different when the rectangular connector body is used in different states, as follows: Before installation, when the plug pin 4 is in an exposed state, the anti-bending rods 16 on both sides of the plug pin 4 will protect the plug pin 4 to prevent the plug pin 4 from being bent and damaged by external force; During installation, the staggered anti-bending rods 16 are V-shaped with each other, and can first contact the inclined surfaces on both sides of the plug-in terminal seat 6 when the female socket and the assembly plug-in terminal are connected to each other, so as to guide the connection, thereby achieving positioning and ensuring that the plug-in pin 4 can be accurately inserted into the socket and connected with the plug-in conductor 19; After installation, when the rectangular connector body is in the dynamic buffer mode, multiple anti-bending rods 16 have a telescopic effect and are used in cooperation with the switching locking member. When the connection female seat and the assembly plug end are moving, it can absorb the dynamic potential energy, thereby reducing the impact of the vibration generated by rail transit on the connection end of the rectangular connector body, and achieving the effects of connection buffering and dynamic connection.

[0023] The assembly plug end includes a plug end housing 5 and a plug-in end seat 6 connected to the plug end housing 5. The two sides of the plug-in end seat 6 are arranged in an inclined plane to facilitate the movement of the anti-bending rods 16. A socket for signal plugging of the plugging pins 4 is opened in the plug-in end seat 6. Further, a plugging conductor 19 is arranged in the socket, a snap-ring type copper core 20 is arranged in the plugging conductor 19, and a conductive ball 21 for cooperating with the snap-ring type copper core 20 is arranged on the plugging pin 4.

[0024] The structure of the snap-ring type copper core 20 can refer to Figure 8 as shown. The setting of its structure can ensure that in the dynamic buffer mode, the plugging pin 4 inserted therein can not only ensure that its own side wall is always in contact with the snap-ring type copper core 20, but also ensure that the conductive ball 21 arranged on the plugging pin 4 can always ensure the pressing contact effect with the snap-ring type copper core 20 in the dynamic mode.

[0025] A fitting cover body 7 adapted to the assembly seat 2 is fixedly connected to the side wall of the plug end housing 5, and an active release component for releasing the limit of the barrier protection member is arranged on the fitting cover body 7; Further, the active release component includes an L-shaped locking socket 22 opened on the side wall of the fitting cover body 7, a block plug 23 adapted to the L-shaped locking socket 22 is arranged at the end of the anti-bending rod 16, a blocking strip 24 is fixedly connected to the fitting cover body 7, the blocking strip 24 is connected with a release member 26 through a limit spring vertical block 25, and the release member 26 penetrates into the L-shaped locking socket 22 and contacts the block plug 23.

[0026] The active release component is in the fixed connection mode state. By pressing the connection female seat and the assembly plug end, the block plug 23 arranged at the end of the anti-bending rod 16 can be accurately inserted into the L-shaped locking socket 22, realizing the locking effect of multiple anti-bending rods 16, so as to cooperate with the switching locking member to achieve the effect of tight connection between each plugging pin 4 and the plugging conductor 19; Further, an active frame body 27 is slidably arranged on the fitting cover body 7, the inner side wall of the active frame body 27 is inclined, and an inclined surface pressing plate 28 is fixedly arranged on the side wall of the release member 26.

[0027] When the locked connection needs to be released, the active frame 27 can be pushed laterally so that the active frame 27 and the inclined pressure plate 28 cooperate to generate pressure on the release member 26. The release member 26 moves into the L-shaped locking socket 22, squeezing the block plug 23 to release it from the locked state.

[0028] The switching locking member includes a fixed end seat 8 arranged on both sides of the mother seat shell plate 1, a locking column 9 is arranged on the fixed end seat 8, and a limit stop cap 10 is arranged at the end of the locking column 9. The limit stop cap 10 can play a positioning effect before docking. After docking, it can prevent the positioning claw 11 from being separated. Two sets of positioning claws 11 are sleeved on the locking column 9. The structure of the positioning claw 11 can refer to Figure 6 The positioning claw 11 at the front end is connected to the locking column 9 through an energy-absorbing buffer, and positioning lock seats 12 are arranged on both sides of the plug-in shell 5; the switching locking member has a compact structure and is easy to install, can achieve the effect of quick locking connection, and the assembly installation process is simple and efficient.

[0029] Furthermore, the energy absorbing buffer comprises an energy absorbing opening 29 formed on the side wall of the locking column 9, and an energy absorbing cross bar 30 is fixedly connected to the inner wall of the positioning spring claw 11 at the front end. The energy absorbing cross bar 30 is located in the energy absorbing opening 29 and is connected to the inner wall of the energy absorbing opening 29 through a resisting energy absorbing spring.

[0030] Among them, the switching locking member has two different locking states corresponding to the two connection modes (dynamic buffer mode and fixed connection mode) of the connection mother seat and the assembly plug end. The design of the positioning claw 11, the two sets of positioning claws 11 cooperate with the energy absorption spring. When switching modes, there is no need to change parts. Direct operation can be used in different parts of the rail vehicle (such as the rigid area of ​​the vehicle body and the shock absorption area of ​​the equipment), specifically: Dynamic locking: In the dynamic buffering mode, the locking column 9 is inserted into the positioning lock seat 12, and the positioning claw 11 with an energy-absorbing buffer at the front end is inserted into the positioning lock seat 12. The positioning claw 11 will realize the connection locking of the positioning lock seat 12, and under the action of the energy-absorbing buffer, the elastic sliding between the locking column 9 and the positioning lock seat 12 can be realized, and the dynamic locking effect can be ensured in the dynamic buffering mode.

[0031] Tightening and locking: In the fixed connection mode, after the locking column 9 is inserted into the positioning lock seat 12, the two positioning claws 11 are inserted into the positioning lock seat 12 one by one, and the two positioning claws 11 are squeezed against each other to apply a tightening force to the positioning lock seat 12, thereby achieving a tightening connection between the limit stop cap 10 at the end of the locking column 9, the positioning claw 11 and the positioning lock seat 12, and realizing a tightened and locked connection state.

[0032] Before the rectangular connector body proposed by the present invention is installed, the connecting female socket in the exposed state, the insertion pins 4 thereon can achieve buffer protection under the left and right of the anti-bending rods 16 on both sides. When the insertion pins 4 are subjected to a deformation force, the anti-bending rods 16 on both sides will be stressed first and carry out buffer protection, thus avoiding the up-and-down deformation of the insertion pins 4 and preventing the situation of inaccurate docking caused by the bending of the insertion pins 4; When the connecting female socket and the assembly plug end are installed, the anti-bending rods 16 arranged in an alternating manner are arranged in a V shape with each other. When the connecting female socket is docked with the assembly plug end, it can first contact the inclined surfaces on both sides of the plug end socket 6 and conduct guiding docking, so as to achieve positioning and ensure that the insertion pins 4 can be accurately inserted into the socket and communicate with the insertion conductor 19. The conductive balls 21 arranged on the insertion pins 4 will be in press-contact connection with the spring-type copper cores 20 in the insertion conductor 19; When it is necessary to perform corresponding installations according to different positions of rail transit, this rectangular connector has two modes: a dynamic buffer mode and a fixed connection mode. By switching the switching locking member between dynamic locking and fastening locking, the rectangular connector can be correspondingly switched to the dynamic buffer mode and the fixed connection mode, so as to meet more connection requirements.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A rectangular connector with a combined quick-lock structure, comprising a rectangular connector body and a switching locking member, characterized in that, The rectangular connector body is composed of a connecting female seat and an assembly plug end, the connecting female seat comprises a female seat shell plate (1), an assembly seat (2) and a protective end plate (3) connected to the assembly seat (2), the connecting female seat is provided with a plug pin (4), and the protective end plate (3) is provided with a blocking protective piece for storing force to protect the plug pin (4); The assembly plug comprises a plug housing (5) and a plug-in terminal seat (6) connected to the plug housing (5); a socket for a plug pin (4) to perform signal plugging is provided in the plug-in terminal seat (6); a matching cover (7) matching the assembly seat (2) is fixedly connected to the side wall of the plug housing (5); and an active release component for releasing the limit of the blocking protective member is provided on the matching cover (7); The switching locking member comprises fixed end seats (8) arranged on both sides of the female seat shell plate (1), a locking column (9) is arranged on the fixed end seat (8), a limit stop cap (10) is arranged at the end of the locking column (9), two groups of positioning claws (11) are sleeved on the locking column (9), the positioning claws (11) located at the front end are connected to the locking column (9) through an energy absorbing buffer, and positioning lock seats (12) are arranged on both sides of the plug end shell (5).

2. The rectangular connector with a combined quick-lock structure according to claim 1, wherein The blocking protection member comprises a force storage vertical groove (13) formed on the protection end plate (3); the inner wall of the force storage vertical groove (13) is connected to a force storage connecting seat (14) via a force storage sliding member; and the force storage connecting seat (14) is connected to an anti-folding rod (16) via a torsion spring shaft (15).

3. The rectangular connector with a combined quick-lock structure according to claim 2, characterized in that, The force storage vertical grooves (13) are arranged on the side walls of the protective end plate (3) between adjacent plug pins (4), and the adjacent anti-bending rods (16) are arranged in a staggered manner, thereby preventing the horizontal bending of the plug pins (4).

4. A rectangular connector with a combined quick-lock structure according to claim 3, characterized in that, The force storage sliding member comprises a sliding opening (17) formed on the side walls of both sides of the force storage vertical groove (13); force storage sliding blocks (18) are fixedly connected to both sides of the force storage connecting seat (14); the force storage sliding blocks (18) are located in the sliding opening (17) and are connected to the inner wall of the sliding opening (17) via a force storage spring.

5. A rectangular connector with a combined quick-lock structure according to claim 1, characterized in that, A plug-in conductor (19) is arranged in the socket, a spring-loaded copper core (20) is arranged in the plug-in conductor (19), and a conductive ball (21) that is matched and connected to the spring-loaded copper core (20) is arranged on the plug-in pin (4).

6. A rectangular connector with a combined quick-lock structure according to claim 2, characterized in that The active release component comprises an L-shaped locking socket (22) provided on a side wall of the adapter cover (7); a card block plug (23) adapted to the L-shaped locking socket (22) is provided at the end of the anti-folding rod (16); a blocking bar (24) is fixedly connected to the adapter cover (7); the blocking bar (24) is connected to a release member (26) via a limit spring vertical block (25); the release member (26) penetrates into the L-shaped locking socket (22) and contacts the card block plug (23).

7. A rectangular connector with a combined quick-lock structure according to claim 6, characterized in that, An active frame (27) is slidably disposed on the adapting cover (7), the inner side wall of the active frame (27) is inclined, and an inclined pressure plate (28) is fixedly disposed on the side wall of the release member (26).

8. The rectangular connector with a combined quick-lock structure according to claim 7, characterized in that, The energy absorbing buffer comprises an energy absorbing opening (29) formed on the side wall of the locking column (9); an energy absorbing cross bar (30) is fixedly connected to the inner wall of the positioning claw (11) at the front end; the energy absorbing cross bar (30) is located in the energy absorbing opening (29) and is connected to the inner wall of the energy absorbing opening (29) via a resisting energy absorbing spring.

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