Inner core parts, connectors and connector assemblies

Abstract

The present invention relates to an inner core component, a connector and a connector assembly. The inner core component includes a support sleeve for the inner core of the cable to pass through and a core plug assembly assembled at the front end of the support sleeve. The core plug assembly includes a support shell axially movably assembled at the front end of the support sleeve. A core plug arranged in a radially floating manner is movably assembled in the support shell. A movable groove is radially arranged on the support shell. The core plug is fixed on a gasket. The gasket is arranged in the movable groove for guiding and sliding along the length direction of the movable groove or the gasket is relatively deflected in the movable groove to achieve radial translation of the core plug. An inner core anti-rotation structure is arranged on the outer side of the support sleeve. The core plug of the present invention can achieve lateral displacement by moving or relatively swinging in the movable groove, and can be adapted to the single-core modules of different manufacturers and models assembled at the socket end. In addition, the present invention realizes rapid and stable connection between the inner core component and the cable through crimping, and further realizes the sealed assembly of the cable and the rapid guided assembly and radial anti-rotation of the inner core component.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to an inner core component, a connector and a connector assembly. Background Art

[0002] Existing connectors generally use glue injection to fix the cable and the inner core. In order to achieve the fixation of the cable and the inner core adhesive sleeve, the cable is usually first inserted into the adhesive sleeve, and then glue is filled in the adhesive sleeve. After being placed at room temperature or baked at high temperature, the glue is solidified, thereby achieving the fixation of the cable and the adhesive sleeve and providing a certain tension. The disadvantages of this inner core component assembly method are that glue injection is difficult and requires special fixing tooling, the glue curing time is long, and the production efficiency is low. In addition, the cable sheath needs to be pre-treated to ensure the tension between the cable and the inner core. When the product requires a single ferrule, a single supporting sleeve is used between the bonding sleeve and the ferrule to achieve hard contact between the bonding sleeve and the ferrule. When the hard contact sleeve is adapted to different single-core modules, the lateral displacement causes the plug to be stressed. Therefore, the current ferrule setting method cannot meet the needs when different single-core modules are installed in the socket end. Since the single-core modules of different manufacturers have different radial positions, the ferrule set inside the plug end cannot be changed in radial position, resulting in it being unable to mate with different single-core modules to achieve optical path or circuit conduction, reducing the applicability of the plug end. Summary of the invention

[0003] In order to solve the technical problems that the inner core components in the existing connectors have low assembly efficiency, lack of anti-rotation function and the core cannot move radially, resulting in the inability to adapt to single-core modules of different manufacturers, an inner core component is proposed, and further proposed are a connector and a connector assembly including the inner core component.

[0004] The purpose of the present invention and the technical problem to be solved are achieved by adopting the following technical solutions. According to the inner core component proposed by the present invention, it includes a support sleeve for the cable inner core to pass through and a plug assembly assembled at the front end of the support sleeve and connected to the cable inner core, and the plug assembly includes a support shell axially movably assembled at the front end of the support sleeve, and a plug arranged to float radially is movably assembled in the support shell.

[0005] Furthermore, a movable groove is radially provided on the supporting shell, at least one insert is fixed on the gasket, and the gasket is movably arranged in the movable groove to realize radial floating assembly of the insert.

[0006] Furthermore, the gasket is arranged in the movable groove in a guided sliding manner along the length direction of the movable groove, thereby realizing the movement of the insert along the length direction of the movable groove.

[0007] Furthermore, the length of the gasket is equivalent to the length of the movable groove, and the width of the movable groove gradually increases from the middle to both ends so that the gasket can deflect in the movable groove.

[0008] Furthermore, the support shell includes a connected base and a cover plate, the base is axially movably assembled at the front end of the support sleeve and the rear end of the base is provided with an inward-turned edge that cooperates with the stopping portion on the outer side of the front end of the support sleeve, a locking plate is fixed at the front end of the support sleeve, and an elastic member is provided between the locking plate and the base for maintaining the tendency of the locking plate to separate backward from the base.

[0009] Furthermore, the movable groove is provided on the base and / or the cover plate, and the tail shell of the plug core abuts against the front end opening of the supporting shell in the height direction for limiting position.

[0010] Furthermore, at least one inner core anti-rotation structure is provided on the outer side of the support sleeve, so as to achieve radial anti-rotation after the inner core component is assembled.

[0011] Furthermore, the support sleeve is crimped to the cable through a crimping sleeve.

[0012] The present invention further proposes a connector and a connector assembly equipped with the above-mentioned inner core component, wherein the connector includes a shell component and an inner core component installed in the shell component, and the inner core component is the inner core component described above.

[0013] The aforementioned connector, wherein the shell component is a push-pull shell component, comprises an inner shell for assembling an inner core component and an outer shell axially movably sleeved on the outside of the inner shell, and the inner shell is provided with a groove that cooperates with the ball lock on the adapter connector to achieve head seat locking.

[0014] In the aforementioned connector, a sealing unit is provided at the rear end of the inner housing for achieving a sealing function between the inner core component and the inner housing.

[0015] The aforementioned connector, wherein the shell component is a threaded shell component, the threaded shell component includes an inner shell component and an outer shell component, the inner shell component is arranged in the outer shell component, the inner core component is installed in the inner shell component, the outer shell component is used to be threadedly connected with the adapter connector shell to realize head seat locking, and the inner shell component includes a front end inner shell and a rear end sealing structure connected to each other.

[0016] In the aforementioned connector, an inverted hanging structure is arranged on the inner wall of the outer shell component along the circumferential direction, and an adapting inverted hanging structure which is matched with the inverted hanging structure along the axial direction is arranged on the outer wall of the inner shell component.

[0017] The aforementioned connector, wherein the tail end sealing structure comprises a connection cap connected to the front end inner shell, the rear end of the connection cap is a cavity formed by a plurality of circumferentially distributed spring claws, and an elastic rubber ring is arranged in the cavity for the cable to pass through,

[0018] When the connector is plugged and locked with the adapter connector, the tail end conical surface in the outer shell assembly squeezes the spring claw, and the spring claw squeezes the elastic rubber ring to reduce the inner cavity of the elastic rubber ring and squeeze the cable to achieve sealing protection.

[0019] In the aforementioned connector, a stop surface is provided inside the rear end of the outer shell component and cooperates with the rear end sealing structure along the axial direction to prevent the inner shell component from escaping from the rear end of the outer shell component.

[0020] In the aforementioned connector, a tensile-resistant surface is provided in the inner shell component, and the tensile-resistant surface cooperates with the axial stop at the rear end of the support sleeve to realize tensile protection of the core component.

[0021] In the aforementioned connector, a protective spring is provided at the rear of the outer shell component and is sleeved on the outside of the cable, thereby improving the bending resistance of the cable.

[0022] The connector assembly comprises a plug-in connector and an adaptor connector. The connector comprises a shell component and an inner core component installed in the shell component. The inner core component is the inner core component described in the above claims.

[0023] Preferably, the housing component and the adapter connector housing are radially anti-rotated after being plugged in via a head seat anti-rotation structure.

[0024] By means of the above technical solution, the connector assembly of the present invention has at least the following beneficial effects compared with the prior art:

[0025] 1. The ferrule is fixed between the base and the cover plate by a gasket at the plug end, and the ferrule is moved or swung in the movable groove to achieve lateral displacement, so that when single-core modules of different manufacturers and models are assembled at the socket end, due to the radial position deviation of different single-core module interfaces, the ferrule in the present invention can adapt to single-core modules in different positions and plug with them through lateral radial displacement, thereby improving the versatility of the connector.

[0026] 2. The connection between the inner core component and the cable is achieved by crimping the crimping sleeve. There is no waiting time after crimping, and the production efficiency is high. The crimping structure is simple to operate, does not require special fixed tooling, and does not require cable processing. It can be crimped after ordinary cutting.

[0027] 3. The inner core components can be quickly guided and assembled, which improves production efficiency. The inner core components can also be radially anti-rotated with the connector housing after being assembled.

[0028] 4. A headstock anti-rotation structure is provided on the connector and the adapter connector to achieve radial anti-rotation after insertion.

[0029] 5. A sealing structure is provided on the shell component of the connector to achieve sealing between the cable and the inner core component and sealing between the inner core component and the shell assembly.

[0030] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the inner core component in the first embodiment of the connector assembly of the present invention.

[0032] Figure 2 It is an exploded view of the connector in the first embodiment of the connector assembly of the present invention.

[0033] Figure 3 and Figure 4 It is a schematic diagram of the adapter connector in the first embodiment of the connector assembly of the present invention.

[0034] Figure 5 It is a schematic cross-sectional view of the shell component in the first embodiment of the connector assembly of the present invention.

[0035] Figure 6 and Figure 7 It is a schematic diagram of the assembly of the inner core component and the shell component in the first embodiment of the connector assembly of the present invention.

[0036] Figure 8 It is a cross-sectional schematic diagram of the inner core component in the first embodiment of the connector assembly of the present invention.

[0037] Fig. 9 It is a schematic diagram of the front and rear states of the ferrule in the first embodiment of the connector assembly of the present invention when it moves along the X direction.

[0038] Fig.10 It is a schematic diagram of the supporting shell structure in the first embodiment of the connector assembly of the present invention.

[0039] Fig.11 It is a schematic diagram of the structure of the inner core component in the second embodiment of the connector assembly of the present invention.

[0040] Fig.12 It is an exploded view of the connector in the second embodiment of the connector assembly of the present invention.

[0041] Fig.13 It is a schematic diagram of the inner housing assembly in the second embodiment of the connector assembly of the present invention.

[0042] Fig.14 It is a schematic structural diagram of the front end connector of the inner housing assembly in the second embodiment of the connector assembly of the present invention.

[0043] Fig.15 It is a schematic diagram of the outer shell assembly in the second embodiment of the connector assembly of the present invention.

[0044] Fig.16 and Fig.17 It is a schematic structural diagram of the adapter connector in the second embodiment of the connector assembly of the present invention.

[0045] Fig.18 It is a schematic diagram of the installation of the inner core component and the shell component in the second embodiment of the connector assembly of the present invention.

[0046] Fig.19 It is a schematic diagram of the coordination between the cable and the tail end sealing structure in the second embodiment of the connector assembly of the present invention.

[0047] Fig. 20 It is a schematic diagram of the front and rear states of the ferrule in the second embodiment of the connector assembly of the present invention when it moves along the X direction. DETAILED DESCRIPTION

[0048] The following is a further detailed description in conjunction with the accompanying drawings and preferred embodiments.

[0049] Embodiment 1 of the connector assembly:

[0050] This embodiment provides a push-pull locking connector assembly, such as Figures 1 to 10 As shown, it includes a plug-in connector and an adapter connector. The plug-in end of the connector is defined as the front end. The connector includes a shell component 1 and an inner core component 2 installed in the shell component. The shell component 1 includes an inner shell 11 and an outer shell 12. The outer shell is axially movably sleeved on the outer side of the inner shell. One of the connector or the adapter connector is a plug, and the other is a matching socket. In this embodiment, the connector is described by taking the plug as an example. The adapter connector is a socket. The socket is assembled on the device panel through the screw holes on its rear end fixing part 32 to cooperate with the fasteners. The socket includes an adapter connector shell 31, which is equipped with at least one radially movably arranged socket locking structure. The inner shell is provided with an adapter locking structure that cooperates with the socket locking structure, so that the two ends of the head seat constitute a push-pull type connector assembly.

[0051] In this embodiment, the socket locking structure is a ball 33, and the adapter locking mechanism is a groove 13. During the plugging process of the head seat, the inner shell lifts the ball. When the insertion continues, the ball blocks the outer shell and moves it toward the rear end of the connector. The reset elastic member 14 assembled between the outer shell and the inner shell is compressed. When the ball falls into the groove, the reset elastic member provides elastic force to reset the outer shell and limit the ball in the radial direction to achieve locking of the head seat; when unlocking, the radial limit of the ball can be released by pulling the outer shell toward the rear end of the connector. After the ball comes out of the groove, the outer shell can be pulled continuously to unlock the head seat. In order to prevent the head seat from rotating after plugging, an anti-rotation structure of the head seat is added at both ends of the head seat, that is, an anti-rotation key 15 is set on the inner shell, and a corresponding key slot 34 is set in the adapter connector shell 31; of course, the anti-rotation key can also be set at the socket end, and the key slot is located at the plug end. A first sealing device 35 is provided in the socket to seal with the outer cylindrical surface of the inner shell, and a second sealing device 36 is embedded in the rear end surface of the fixed part to achieve sealing with the equipment panel. Both sealing devices are preferably sealing rings; the outer cylindrical surface of the inner shell constitutes a front end sealing structure, and its outer diameter is between Φ18mm and 21mm; the center of the groove 13 is between 7mm and 10mm from the front end surface of the inner shell.

[0052] The inner core component 2 is installed in the inner housing 11, and an inner sleeve 111 is fixed in the inner housing, and at least one axially extending guide key 112 is provided on the inner sleeve, and a positioning groove 211 is provided on the inner core component 2 to axially slide with the guide key to achieve radial anti-rotation between the inner core component and the housing component. In this embodiment, the positioning groove constitutes an inner core anti-rotation structure, and the guide key constitutes an adaptation anti-rotation structure, but it is not limited to this. The guide key can also be provided on the inner core component, and the positioning groove is provided in the connector housing.

[0053] The inner core component 2 includes a support sleeve 21 and an ferrule assembly 22 axially floatingly assembled at the front end of the support sleeve. The inner core of the cable 4 passes through the support sleeve 21 and is connected to the ferrule assembly 22. The support sleeve 21 supports and protects the inner core of the cable. The ferrule assembly axially floatingly assembled at the front end of the support sleeve can adapt to various different interface positions in the axial direction when single-core modules of different manufacturers are assembled in the socket end.

[0054] The plug assembly 22 includes a support shell 5 axially movably arranged at the front end of the support sleeve, and a plug 6 that can float radially is installed in the support shell; the support shell includes a base 51 and a cover plate 52 that are interlocked with each other, and the support shell is a hollow square shell-like structure. The base is axially movably assembled at the front end of the support sleeve, and the rear end of the base is provided with an inward turning edge 511 that cooperates with the stopping portion 213 on the outer side of the front end of the support sleeve. A locking plate 7 is fixed to the front end of the support sleeve, and an elastic member 71 is provided between the locking plate and the base for maintaining the tendency of the locking plate to separate backward from the base. The elastic member is preferably a spring, which is mounted on a guide pin fixed on the front end surface of the locking plate. By means of the above structure, the axial movement of the plug assembly can be realized.

[0055] The support shell 5 is provided with a movable groove 8, combined with Fig.10 , relatively distributed movable grooves are provided on the base and the cover plate, at least one plug is fixed on the gasket 9, and the gasket and the plug's tail shell 61 are connected by snap-fitting to facilitate quick disassembly, the gasket 9 is located in the movable groove 8, and the height of the plug's tail shell 61 is basically consistent with the height of the front end opening of the supporting shell, thereby suppressing the plug from shaking in the height direction. In this embodiment, the length of the gasket is equivalent to the groove length of the movable groove, and the groove width of the movable groove gradually increases from the middle to the two ends. There is space at both ends of the movable groove for the gasket to deflect relative to each other within a certain angle, so that the gasket can deflect within a certain range in the movable groove. Fig. 9 When the plug core 6 in the plug is plugged into the single-core module in the socket, if there is a position deviation between the plug core and the single-core module in the X direction, the plug core needs to move along the X direction in order to be plugged and matched with the single-core module. However, when plugging, the plug core must always maintain an axial horizontal posture and cannot deflect / tilt. Therefore, the movable groove will be relatively deflected relative to the gasket to achieve radial translation along the X direction in the figure while maintaining the axial arrangement. Therefore, the support shell will be adaptively deflected to achieve this function. Preferably, the inverted edge 511 at the rear end of the support shell 5 and the front end of the support sleeve have a gap 512 in the radial direction, which is more conducive to the deflection of the support shell.

[0056] In another embodiment, in order to increase the moving distance of the plug along the X-direction and thus adapt to more different fixed positions of the single-core modules inside the socket end along the X-direction, the gasket can be designed to be significantly shorter than the length of the movable groove. At this time, the gasket can not only deflect relative to the movable groove, but also slide in the movable groove along the length direction of the groove. The deflection and sliding are combined to achieve a larger distance translation of the plug along the X-direction.

[0057] The plug connector in this embodiment not only realizes the axial movement of the core, but also realizes the overall floating of the core in the radial direction. The combination of the two can adapt to various single-core modules with different axial and radial positions assembled on the socket end, greatly improving the versatility of the connector.

[0058] Furthermore, the positioning groove 211 is provided on the support sleeve 21, and the rear end of the positioning groove is set as a flared structure to form a guide surface, so as to facilitate the insertion and guiding of the guide key to realize the rapid assembly of the inner core component. After the inner core component 2 is assembled in place, the positioning surface 212 provided at the rear end of the support sleeve 21 cooperates with the axial stop of the step 113 in the inner shell 11 to limit the rear end of the inner core component in axial direction.

[0059] Furthermore, the inner core component includes a crimping sleeve 23, a sealing sleeve 24, a protective sleeve 25, and a sealing member 26. The support sleeve 21 is crimped with the cable 4 through the crimping sleeve 23. The support sleeve can extend into the interior of the cable to provide support for the cable and ensure a certain axial tension. Alternatively, the support sleeve does not extend into the cable, and the rear end face of the support sleeve is flush with the end face of the cable. The connection between the support sleeve and the cable can also be achieved by crimping the crimping sleeve. The sealing sleeve 24 is threadedly connected to the rear end of the support sleeve 21 so as to be sleeved on the outside of the crimping sleeve. The rear end of the inner core component is protected by a cover. The protective sleeve 25 is sleeved between the crimping sleeve 23 and the sealing sleeve 24. The sealing member 26 is sleeved on the cable and located between the cable and the sealing sleeve. The sealing member 26 is pressed by axially moving the sealing sleeve to achieve sealing between the inner core component and the cable. When there is no axial compression, the sealing member can also achieve sealing between the inner core component and the cable. The sealing member is preferably a sealing ring.

[0060] Preferably, the inner core component also includes a protective spring 27, which provides support and protection for the cable 4, so that the cable has better anti-bending performance. The folded portion formed after the front end of the protective spring 27 is folded outward is compressed and limited between the step at the tail end of the sealing sleeve and the gasket 28. The gasket is set on the cable and located at the rear end of the seal. The tail end of the sealing ring is radially contracted to form a locking portion that is convenient for matching with the tail cover 29. The inner wall of the locking portion is provided with an arc surface 241, and the arc surface gradually expands outward from the front end to the rear end, which is convenient for bending the cable and providing protection. The tail cover 29 and the tail end of the sealing sleeve 24 are threadedly connected to lock the tail of the inner core component, provide a certain clamping force for the protective spring, and improve the stability of the protective spring. In order to achieve the sealing between the inner core component 2 and the shell assembly, a sealing unit 114 that is sealed with the outer cylindrical surface of the sealing sleeve 24 is embedded in the inner wall of the inner shell. The sealing unit is preferably a sealing ring.

[0061] In this embodiment, at least one stop 37 is provided at the rear end of the inner hole of the socket, which cooperates with the front end surface of the inner shell to limit the insertion position of the plug. The stop avoids the plug assembly at the front end of the inner core component in the radial direction of the socket to achieve cooperation with the inner core component.

[0062] In other embodiments, the resetting elastic member and the elastic retaining ring structure for limiting the resetting distance of the outer shell may not be provided, and the outer shell may be driven to reciprocate within a suitable axial sliding stroke by means of an external linkage mechanical structure of the connector.

[0063] Embodiment 2 of the connector assembly:

[0064] This embodiment provides a threaded locking connector assembly, such as Figures 1 to 7As shown, it includes a plug-in connector and an adapter connector. The connector is a plug, which includes a shell component and an inner core component 20 installed in the shell component. The shell component 10 includes an inner shell component and an outer shell component. The inner shell component is set in the outer shell component. The adapter connector is a socket 30 and is assembled on the device panel through its rear end fixing part. The fixing part is not limited to a square, round or other shaped fixing flange. The plug-in and pull-out force can be evenly distributed by setting evenly distributed screw holes and fasteners on it. The plug-in end of the front end of the outer shell component has a locking nut 101, which is used to cooperate with the external thread 301 of the socket shell at the socket end to achieve head seat locking, so that the two ends of the head seat constitute a threaded locking connector component.

[0065] Combination Fig.14 In this embodiment, the head seat anti-rotation structure is at least one pair of plane features 102 set at the front end of the inner shell assembly, and can further include a pair of arc features 103, so as to form a waist-shaped interface. The plane features and the arc features are connected, and a notch 104 can also be set at the intersection of the features. The head seat anti-rotation structure can cooperate with the socket cavity of the same shape structure at the socket end to realize radial anti-rotation of the head seat. The notch is used to cooperate with the structure such as the pin or the elastic pin at the socket end to achieve further locking. In other embodiments, the head seat anti-rotation structure can also be a polygonal interface.

[0066] The inner core component 20 includes a support sleeve 201, an axially floating plug assembly 202 assembled at the front end of the support sleeve, an inner core anti-rotation structure is arranged on the support sleeve 201, and the rear end of the support sleeve is crimped with the cable 4 through a crimping sleeve 203. The plug assembly 202 in this embodiment is different from the plug assembly in the connector assembly embodiment 1 in that: the movable groove on the support shell can also be guided and slidably matched with the gasket along the groove length direction, and the groove width along the groove length extension direction is the same. At this time, the gasket 90 does not deflect relative to the movable groove 80, and the plug can also be moved along the X direction. Fig. 20 The length of the gasket 90 is obviously smaller than the length of the movable groove 80 along the radial direction of the connector. The gasket guides and slides in the movable groove to drive the plug to translate in the X direction, and the supporting housing 50 does not need to be deflected or tilted. It is worth noting that the plug assembly in this embodiment can also adopt the plug assembly of the first embodiment.

[0067] like Fig.13 The inner housing assembly includes a front inner housing 105 and a rear end sealing structure 106 connected to each other, and the connection between the two is a snap connection that can be quickly installed, which is used to achieve the head seat anti-rotation seal and the rear end protection function. In other embodiments, the front inner housing can also be connected to the rear end sealing structure by bonding, gluing, threading, forced fitting, etc.

[0068] The outer circular surface of the front end inner shell realizes the sealing function between the inner and outer shell components by setting a sealing ring element 1051; at least one guide groove 1052 is set in the front end inner shell, and the inner core anti-rotation structure is a protrusion 204 that cooperates with the guide groove radially to prevent rotation, thereby realizing radial anti-rotation of the inner core component after being assembled on the inner shell component. In other embodiments, the protrusion can also be located on the inner shell component, and the guide groove is located on the support sleeve.

[0069] The outer shell assembly includes an outer shell 107, a tail nut 108 threadedly connected to the tail end of the outer shell, and a protective spring 109. The inner wall of the outer shell is provided with an inverted hanging structure along the circumferential direction, and the outer wall of the inner shell component is provided with an adaptable inverted hanging structure that cooperates with the inverted hanging structure along the axial stop. The inverted hanging structure is an elastic locking piece 1071, and the adaptable inverted hanging structure is a flange 1053. After the flange passes over the elastic locking piece, it realizes the stop in the insertion direction of the inner core component. A stop surface 1072 is provided inside the tail end of the outer shell, which cooperates with the tail end sealing structure 106 of the inner shell assembly to realize the tail end stop, so as to prevent the inner shell assembly from coming out of the tail end of the outer shell assembly.

[0070] The tail end sealing structure 106 includes a connection cap 1061 connected to the front end inner shell. The rear end of the connection cap is a cavity formed by a number of circumferentially evenly distributed spring claws 1062. An elastic rubber ring 1063 is provided in the cavity for the cable to pass through. The elastic rubber ring is pressed between the connection cap and the front end inner shell. When the plug and the socket are locked, the inner core component moves axially with the inner shell assembly toward the rear end under the push of the socket end. The tail end conical surface 1073 in the outer shell assembly squeezes the movable end of the spring claw 1062. Each spring claw contracts radially to squeeze the elastic rubber ring 1063, thereby reducing the inner cavity of the elastic rubber ring and squeezing the cable to achieve sealing protection between the connector and the cable. The cable sealing area A is as shown in FIG. Fig.19 shown.

[0071] The front inner shell of the inner shell assembly is provided with a tensile surface 1054, which cooperates with the axial stop at the rear end of the support sleeve to realize the tensile protection of the plug core component. The protective spring 109 is sleeved on the outside of the cable to improve the bending resistance of the cable, and the protective spring can be fixedly connected with the tail nut 108.

[0072] As an extension of this embodiment, the width of the movable groove is equal to or slightly smaller than the thickness of the gasket. This arrangement allows the gasket to be inserted into the movable groove in a slightly forced manner, thereby providing a certain damping during the sliding process. When there is a radial deviation between the position of the single-core module in the socket and the plug in the plug, the plug can be adjusted to the alignment position to provide a certain stability to the plug, thereby avoiding the need to re-calibrate the position due to the gasket being easily loosened. In addition, the interface or socket of the general single-core module has a guide surface for easy insertion, which makes it easier to mate.

[0073] In this embodiment, when the head seat is plugged in, after the core is pre-plugged into the single-core module in the socket, the outer shell is rotated so that the front end nut cooperates with the external thread of the socket to achieve locking. During this process, the inner shell assembly does not rotate, and the outer shell assembly drives the inner shell assembly to move axially toward the front end during the screwing process. The inner core component moves toward the rear end relative to the outer shell assembly under the axial pushing action of the single-core module, so that the inner cavity of the elastic rubber ring in the tail end sealing structure is reduced and squeezes the outer ring of the cable to achieve sealing protection.

[0074] In Embodiment 1 and Embodiment 2 of the connector assembly, the ferrule may be a commonly used connector such as LC, DLC or RJ45, so as to transmit optical signals, electrical signals or photoelectric signals; the movable groove may also be a groove-like structure formed by protrusion structures distributed in pairs and extending radially on the base and / or the cover plate for the gasket to be inserted and slid or the socket to swing.

[0075] In other embodiments of the connector assembly, the locking cooperation between the connector and the adapter connector may also adopt connector locking structures such as handle locking, snap locking, curved groove locking or spring pin locking.

[0076] The embodiment of the connector in the present invention is the connector described in the above-mentioned embodiments of the connector assembly, and the embodiment of the inner core component is the inner core component described in the above-mentioned embodiments of the connector assembly, and the specific structure will not be repeated here.

[0077] The above is only a preferred embodiment of the present invention. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention, still falls within the scope of the technical solution of the present invention.

Claims

1. An inner core component, comprising a support sleeve for the inner core of the cable to pass through and an insert assembly assembled at the front end of the support sleeve and connected to the inner core of the cable, characterized in that: The plug assembly includes a supporting shell axially movably assembled at the front end of the supporting sleeve, and a plug arranged to float radially and movably assembled in the supporting shell; a movable groove is radially provided on the supporting shell, at least one plug is fixed on a gasket, and the gasket is movably arranged in the movable groove, and the groove width of the movable groove gradually increases from the middle to the two ends so that the gasket deflects in the movable groove, thereby realizing the radial floating assembly of the plug.

2. The inner core component according to claim 1, characterized in that: The length of the gasket is shorter than the groove length of the movable groove. When the gasket is movably arranged in the movable groove, the gasket can deflect relative to the movable groove and can also slide in the movable groove along the groove length direction.

3. The inner core component according to claim 1, characterized in that: The length of the gasket is equivalent to the groove length of the movable groove. When the gasket is movably arranged in the movable groove, the gasket only deflects in the movable groove.

4. The inner core component according to any one of claims 1 to 3, characterized in that: The support shell includes a connected base and a cover plate. The base is axially movably assembled at the front end of the support sleeve and the rear end of the base is provided with an inward-turned edge that cooperates with the stopping portion on the outer side of the front end of the support sleeve. A locking plate is fixed at the front end of the support sleeve, and an elastic member is provided between the locking plate and the base to maintain the tendency of the locking plate to separate backward from the base.

5. The inner core component according to claim 4, characterized in that: The movable groove is provided on the base and / or the cover plate, and the tail shell of the plug core abuts against the front end opening of the supporting shell in the height direction for limiting position.

6. The inner core component according to claim 1, characterized in that: At least one inner core anti-rotation structure is arranged on the outer side of the support sleeve, so as to realize radial anti-rotation after the inner core component is assembled.

7. The inner core component according to claim 1, characterized in that: The support sleeve is crimped to the cable through a crimping sleeve.

8. A connector, comprising a housing component and an inner core component mounted in the housing component, characterized in that: The inner core component is the inner core component described in any one of claims 1 to 7.

9. The connector according to claim 8, characterized in that: The shell component is a push-pull shell component, which includes an inner shell for assembling an inner core component and an outer shell axially movably sleeved on the outside of the inner shell. The inner shell is provided with a groove that cooperates with the ball lock on the adapter connector to achieve head seat locking.

10. The connector according to claim 9, characterized in that: The rear end of the inner shell is provided with a sealing unit for realizing a sealing function between the inner core component and the inner shell.

11. The connector according to claim 8, characterized in that: The shell component is a threaded shell component, which includes an inner shell component and an outer shell component. The inner shell component is arranged in the outer shell component, and the inner core component is installed in the inner shell component. The outer shell component is used to be threadedly connected with the adapter connector housing to achieve head seat locking. The inner shell component includes a front end inner shell and a rear end sealing structure connected to each other.

12. The connector according to claim 11, characterized in that: An inverted hanging structure is arranged on the inner wall of the outer shell component along the circumferential direction, and an adapting inverted hanging structure which is matched with the inverted hanging structure along the axial direction is arranged on the outer wall of the inner shell component.

13. The connector according to claim 11, characterized in that: The tail end sealing structure comprises a connection cap connected to the front end inner shell, the rear end of the connection cap is a cavity formed by a plurality of circumferentially distributed spring claws, and an elastic rubber ring is arranged in the cavity for the cable to pass through. When the connector is plugged and locked with the adapter connector, the tail end conical surface in the outer shell assembly squeezes the spring claw, and the spring claw squeezes the elastic rubber ring to reduce the inner cavity of the elastic rubber ring and squeeze the cable to achieve sealing protection.

14. The connector according to claim 13, characterized in that: A stop surface is provided inside the tail end of the outer shell component and cooperates with the tail end sealing structure along the axial direction to prevent the inner shell component from escaping from the tail end of the outer shell component.

15. The connector according to claim 11, characterized in that: The inner shell component is provided with an anti-tension surface, and the anti-tension surface cooperates with the axial stop at the rear end of the support sleeve to realize the tension protection of the core plug component.

16. The connector according to claim 11, characterized in that: The rear part of the outer shell component is provided with a protective spring which is sleeved on the outside of the cable, thereby improving the anti-bending performance of the cable.

17. A connector assembly, comprising a plug-in connector and an adapter connector, the connector comprising a housing component and an inner core component installed in the housing component, characterized in that: The inner core component is the inner core component described in any one of claims 1 to 7.

18. The connector assembly according to claim 17, wherein: The housing component and the adapter connector housing are radially prevented from rotating after being plugged in via a head seat anti-rotation structure.

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