CN109818185B

CN109818185B - Socket and terminal surface cover subassembly, plug thereof

Info

Publication number: CN109818185B
Application number: CN201711175731.XA
Authority: CN
Inventors: 黄江泰; 魏德超
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2017-11-22
Filing date: 2017-11-22
Publication date: 2020-09-08
Anticipated expiration: 2037-11-22
Also published as: CN109818185A

Abstract

The invention provides a socket, an end face covering assembly and a plug thereof, wherein the end face covering assembly comprises a cylindrical end cover, at least one rotary table is installed in the cylindrical end cover, and the rotary table and the end cover can relatively rotate in the circumferential direction and relatively move in the axial direction through the sliding fit of a curved groove on one and a slide block on the other; the end plate and the rotary disc are respectively provided with an end plate through hole and a rotary disc through hole, the position of the rotary disc close to the end plate, which corresponds to the end plate through hole, is provided with a pushing part pushed backwards by a pushing rod of the adaptive plug, and the assembly further comprises an elastic piece providing forward acting force for the rotary disc. When the adaptive plug is inserted into the socket, the push rod on the adaptive plug penetrates through the end plate through hole and pushes the pushing part, the pushed turntable is forced to move backwards and rotate circumferentially until the pushed turntable axially moves to the rear side position and the turntable through hole on the adaptive plug is axially overlapped with the end plate through hole, the contact element on the plug is inserted into the socket and is inserted into the socket contact element, and the insertion process is very convenient.

Description

Socket and terminal surface cover subassembly, plug thereof

Technical Field

The invention relates to the field of conductive connection, in particular to a socket with dustproof and waterproof functions, an end face covering assembly of the socket and a plug matched with the socket.

Background

In order to prevent the insertion end of the connector from being affected by external environments such as dust and moisture when the connector is not in use and prevent the conductive contact from making undesired contact with other external objects, an end face cover assembly is generally provided on an end face of the insertion end of the connector. For example, chinese patent application nos. 92224702.1 and 98215374.0 disclose two different sockets, and end face covering assemblies are disposed at the insertion ends of the two sockets, so as to ensure that the contacts of the sockets are covered in a natural state and isolated from the external environment. However, when the two sockets are used, that is, when the adaptive plug is inserted into the socket, the plug needs to be rotated until the plug is further inserted when the hole on the rotating disc is rotated to correspond to the contact of the socket, so that the plug and the socket are mutually inserted. This is troublesome when plugging and is not applicable when the plugging space is limited, that is, there is not enough space for the plug to rotate.

Disclosure of Invention

The invention aims to provide a socket with a shielding function, which is convenient to use, and also provides an end face shielding component of the socket and a plug matched with the socket.

The end face covering assembly comprises a cylindrical end cover with an end plate at one end and an opening at one end, wherein at least one rotary disc is installed in the cylindrical end cover, and the rotary discs and the end cover can relatively rotate in the circumferential direction and relatively move in the axial direction through sliding fit of a curved groove on one rotary disc and a sliding block on the other rotary disc; the end plate and the rotary disc are respectively provided with an end plate through hole and a rotary disc through hole, when the rotary disc is positioned at a front limit position close to the end plate, the end plate through hole and the rotary disc through hole are staggered, and when the rotary disc is positioned at a rear position far away from the end plate, the end plate through hole and the rotary disc through hole are axially superposed and form an inserting passage for a contact element of an adaptive plug to pass through; and a pushing part pushed backwards by a pushing rod of the adaptive plug is arranged on the position, corresponding to the end plate through hole, of the rotary disc close to the end plate. When the adaptive plug is inserted into the socket, the push rod on the adaptive plug penetrates through the end plate through hole and pushes the pushing part, the pushed turntable is stressed to move backwards and rotates under the guiding action of the curved groove until the pushed turntable axially moves to the rear side position and the turntable through hole on the pushed turntable axially coincides with the end plate through hole, the contact element on the plug is inserted into the socket through the formed insertion channel and is inserted into the socket contact element, the insertion of the plug and the socket is completed, and the insertion process is very convenient. Moreover, the assembly further comprises an elastic part which provides forward acting force for the rotating disc to keep the rotating disc at the front limit position, so that the rotating disc can automatically reset after the plug is pulled out of the socket, and the plugging end of the socket is covered.

On the basis of last basic scheme, can be provided with two with the carousel during the design, two carousels are when the grafting direction sets up side by side and moves along the axial syntropy, circumference antiport. The rotation opposite direction of two carousels, that is to say, insert the process of closing at the plug, carousel perforation circumference on two carousels is close to each other and rotates until the axial corresponds, extracts the process at the plug, and carousel perforation circumference on two carousels is kept away from each other and is rotated until the axial stagger, can guarantee like this that the socket is sealed the effect better at non-use state.

When two turntables are arranged, at least one turntable through hole of the turntable positioned on the front side is a long hole extending in the circumferential direction, a front extending section extending into the long hole is arranged on the turntable positioned on the rear side, and the front side surface of the front extending section forms a pushing part pushed backwards by a pushing rod of the adaptive plug. The pushing part is also arranged on the rear-side turntable, and the turntable positioned on the rear side can be pushed through the pushing rod in the process of inserting the plug into the socket, so that the problems of easy clamping and large force application when the pushing rod only pushes the turntable on the front side and pushes the turntable positioned on the rear side backwards through the front-side turntable when moving backwards to promote the rear-side turntable to move backwards are avoided.

Furthermore, the simplified design is that the front side hole edge of the long hole circumferentially opposite to the front extension section of the rear rotary disc forms the pushing part of the rotary disc, so that the pushing parts on the front rotary disc and the rear rotary disc are adjacent, and when the plug is inserted into the socket, the pushing parts of the two rotary discs can be pushed through one contact element simultaneously.

The four technical schemes of the end face covering assembly are provided, and various optimization schemes of parallel optimization design and continuous optimization design can be obtained on the basis of the four technical schemes.

For example, for a curved groove slider mechanism, a curved groove may be provided on the outer circumferential surface of the turntable, and a slider may be provided on the inner cylindrical wall of the cylindrical end cap; or conversely, the curved groove is arranged on the inner cylinder wall of the cylindrical end cover, and the slide block is arranged on the outer peripheral surface of the rotary disc.

When the curved groove is arranged on the outer peripheral surface of the rotary table, an inner annular groove with a groove bottom extending to the end face at the rear side of the cylindrical end cover can be arranged at one end close to the opening on the inner cylindrical wall of the cylindrical end cover, and the groove bottom of the inner annular groove is not higher than that of the curved groove, so that the rotary table can be conveniently arranged in the cylindrical end cover along the sliding groove.

For another example, for a curved groove slider structure, a guide rod extending axially inward may be further disposed at a central position of the end plate, the curved groove is disposed on the guide rod, and the slider is disposed on the turntable and slidably sleeved along the curved groove.

For example, the resilient member may be in the form of a wave spring which is located between the dial and the mating end of the socket in use. Especially when the carousel has two, can avoid the hole at the carousel behind the middle part utensil of the carousel that is located the rear side, stretch the section behind the arc that stretches into the hole is avoided to the carousel that is located the front side, lie in moreover on the carousel of rear side have with stretch the anchor ring of the trailing flank parallel and level of section behind the arc. Therefore, the corrugated spring can simultaneously push the front rotary table and the rear rotary table through the jacking fit with the rear side surface of the arc-shaped rear extension section and the ring surface, and the two rotary tables are promoted to stably and reliably return to the front limit position forwards.

Then, the design of simplification can set up the protruding edge of arc on the inner wall in hole is dodged to the carousel in the back, the anchor ring is the trailing flank of the protruding edge of arc. The front rotary disc avoiding holes can be formed in the positions, corresponding to the rear rotary disc avoiding holes, of the rotary disc positioned on the front side, the front rotary disc and the rear rotary disc are provided with the avoiding holes, the front rotary disc and the rear rotary disc avoiding holes are axially opposite, connecting holes used for being connected with a socket can be formed in the positions, corresponding to the front rotary disc avoiding holes and the rear rotary disc avoiding holes, of the end plate, and the end face can be conveniently connected with the socket. Then can further, set up the inner tube section that extends backward and pass preceding, back carousel dodge the hole in the periphery of connecting hole on the end plate, the annular space between inner tube section and the back carousel dodge the hole constitutes the accommodation space who holds ripple spring, can guarantee its reliable and stable work with ripple spring restriction in accommodation space like this. It is further defined that the assembly further comprises a sealing ring interposed, in use, between the bellows spring and the socket, such that the bellows spring is completely insulated by the sealing ring.

The socket comprises a socket shell, wherein an end plate is fixedly arranged on the front side of an insertion end face of the socket shell, at least one rotary disc is arranged between the end plate and the insertion end face, the rotary disc can rotate circumferentially when moving axially under the action of a spiral driving structure, an end plate through hole and a rotary disc through hole are respectively arranged on the end plate and the rotary disc, the end plate through hole and the rotary disc through hole are staggered when the rotary disc is positioned close to a front limit of the end plate, and the end plate through hole and the rotary disc through hole are axially overlapped and form an insertion passage for a contact element of an adaptive plug to pass through when the rotary disc is positioned far away from the rear side; the rotary disc close to the end plate is provided with a pushing part pushed backwards by a pushing rod of the adaptive plug, and the socket also comprises an elastic piece which provides forward acting force for the rotary disc to keep the rotary disc at the front limit position.

When the adaptive plug is inserted into the socket, the push rod on the adaptive plug penetrates through the end plate through hole and pushes the pushing part, the pushed turntable is stressed to move backwards, rotates under the guiding action of the spiral driving structure until the pushed turntable axially moves to the rear side position, and when the turntable through hole on the pushed turntable axially coincides with the end plate through hole, the contact element on the plug is inserted into the socket through the formed insertion channel and is inserted into the socket contact element, so that the insertion of the plug and the socket is completed, and the insertion process is very convenient. Through setting up the elastic component, be convenient for after the plug extracts the socket the carousel can automatic re-setting, cover the grafting end of socket.

On the basis of last basic scheme, can be provided with two with the carousel during the design, two carousels are when the grafting direction sets up side by side and moves along the axial syntropy, circumference antiport.

When two turntables are arranged, at least one turntable through hole of the turntable positioned on the front side is a long hole extending in the circumferential direction, a front extending section extending into the long hole is arranged on the turntable positioned on the rear side, and the front side surface of the front extending section forms a pushing part pushed backwards by a pushing rod of the adaptive plug.

The four technical schemes of the socket are provided, and on the basis of the four technical schemes, various optimization schemes of parallel optimization design and continuous optimization design can be made according to the arrangement mode of the spiral driving structure.

For example, the end plate or the socket shell is provided with a cylinder wall surrounding the periphery of the turntable, the spiral driving structure is a curved groove arranged on one of the cylinder wall and the turntable and a slide block arranged on the other, namely the curved groove can be arranged on the periphery of the turntable, and the slide block is arranged on the inner cylinder wall of the cylindrical end cover; or conversely, the curved groove is arranged on the inner cylinder wall of the cylindrical end cover, and the slide block is arranged on the outer peripheral surface of the rotary disc.

When the cylinder wall is arranged on the end plate, a cylinder end cover with one end sealed and one end opened can be obtained, at the moment, the socket comprises the cylinder end cover with one end sealed and one end opened, the opening of the cylinder end cover is matched with the plug end surface of the socket shell, the sealing plate of the sealed end of the cylinder end cover forms the end plate, and the cylinder part of the cylinder end cover forms the cylinder wall.

Furthermore, when the curved groove is arranged on the outer peripheral surface of the rotary table, an inner ring groove with a groove bottom extending to the rear end face of the cylindrical end cover can be arranged at one end close to the opening on the inner cylinder wall of the cylindrical end cover, and the groove bottom of the inner ring groove is not higher than that of the curved groove, so that the rotary table can be conveniently arranged in the cylindrical end cover along the sliding groove.

Alternatively, for another example, an axially extending guide rod may be provided at a central position of the end plate or the socket housing, the rotary plate is fitted with the guide rod, and the screw driving structure includes a curved groove provided on one of an outer peripheral surface of the guide rod and an inner hole surface of the rotary plate and a slider provided on the other.

For example, the resilient member may be in the form of a wave spring which is located between the dial and the mating end of the socket in use. Especially when the carousel has two, can avoid the hole at the carousel behind the middle part utensil of the carousel that is located the rear side, stretch the section behind the arc that stretches into the hole is avoided to the carousel that is located the front side, lie in moreover on the carousel of rear side have with stretch the anchor ring of the trailing flank parallel and level of section behind the arc.

Then, the design of simplification can set up the protruding edge of arc on the inner wall in hole is dodged to the carousel in the back, the anchor ring is the trailing flank of the protruding edge of arc. The front rotary disc avoiding holes can be formed in the positions, corresponding to the rear rotary disc avoiding holes, of the rotary disc positioned on the front side, the front rotary disc and the rear rotary disc are provided with the avoiding holes, the front rotary disc and the rear rotary disc avoiding holes are axially opposite, connecting holes used for being connected with a socket can be formed in the positions, corresponding to the front rotary disc avoiding holes and the rear rotary disc avoiding holes, of the end plate, and the end face can be conveniently connected with the socket. Then can further, set up the inner tube section that extends backward through preceding, back carousel dodge the hole in the periphery of connecting hole on the end plate, the annular space between inner tube section and the back carousel dodge the hole constitutes the accommodation space who holds ripple spring. It is further defined that the assembly further comprises a sealing ring interposed, in use, between the bellows spring and the socket, such that the bellows spring is completely insulated by the sealing ring.

The plug is matched with the socket and comprises a plug shell, wherein the front end of the plug shell is a plugging end, a pushing rod extending along the plugging direction is arranged on the plugging end, and the tail end of the pushing rod is provided with a pushing part for pushing a pushing part of a turntable of the matched socket.

It is known that at least two contact elements generally project from the plug end, so that when a plunger is provided, one of the contact elements may form the plunger, which has an extension in the plug direction beyond the other contact element, the pressing portion being provided at the end of the extension.

The ground contact may be made to constitute an ejector pin in consideration of an influence on the use effect of the plug.

In addition, because the ejector rod is matched with the rotary disc in an ejecting way when in use, in order to reduce the abrasion of the ejector rod, a wear-resistant coating can be arranged on the outer surface of the ejecting part.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a socket of the present invention;

FIG. 2 is a schematic structural view of the socket of the present invention with the dust cap removed;

FIG. 3 is a schematic structural diagram of a plug according to a first embodiment of the present invention;

FIG. 4 is a schematic structural view of the plug of the present invention with the locking structure removed;

FIG. 5 is a schematic view of the plug and receptacle of the present invention when mated;

FIG. 6 is a schematic view of the plug and receptacle of the present invention shown fully mated;

FIG. 7 is an exploded perspective view of the end face cover assembly of the present invention;

fig. 8 is a schematic view of a ground pin on a plug prior to insertion into an end cover assembly;

fig. 9 is a schematic view of a grounding pin on a header after insertion into an end cover assembly;

fig. 10 is a schematic view of the face cover assembly prior to the ground pins on the plug being inserted into the face cover assembly;

FIG. 11 is a cross-sectional view taken at A-A of FIG. 10;

fig. 12 is a schematic view of the face shield assembly after the ground pins on the plug are inserted into the face shield assembly;

FIG. 13 is a cross-sectional view taken at B-B of FIG. 12;

fig. 14 is a schematic view of the position of the turntable within the endface shield assembly prior to the insertion of the grounding pins on the plug into the endface shield assembly;

FIG. 15 is a view similar to FIG. 14 but from a different perspective than FIG. 14;

FIG. 16 is a schematic view of the structure of the turntable on the front side;

FIG. 17 is a schematic structural view of a turntable on the rear side;

FIG. 18 is a schematic view of a cylindrical end cap;

fig. 19 is an exploded perspective view of the end face cover assembly of the second embodiment.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 2, the first embodiment of the socket of the present invention includes a socket housing 8, the front end of the socket housing 8 has a plug end 81, the front end surface of the plug end 81 is a plug end surface 800, the outer side of the plug end 81 is installed with a dust cover 82, and the front end is installed with an end surface cover assembly 89. The plug end 81 includes a cylindrical insulator, the socket contact is mounted in the cylindrical insulator, the cylindrical insulator is provided with a plug hole for the plug contact to be inserted into and contact with the socket contact, and the plug end face in this embodiment is the front side face of the cylindrical insulator. The mating end face is substantially an end face of the socket located on the front side of the contact, and may be an end face of the socket housing or an end face of the insulator.

The configuration of the end face shield assembly and its various components is shown in fig. 7-18. The socket specifically comprises a cylindrical end cover 1, wherein one end of the cylindrical end cover is opened, one end of the cylindrical end cover is provided with an end plate, and the opened end of the cylindrical end cover is buckled with the inserting end of the socket. The middle part of the end plate is provided with a connecting hole 14 for connecting with the plugging end of the socket. End plate through holes 12 for the plug contact pieces to pass through are uniformly arranged on the end plate around the circumferential direction of the connecting hole.

The end face covering assembly further comprises two rotating discs, and the two rotating discs are arranged in the cylindrical end cover 1 in parallel in the inserting direction. The turntable located at the front side, i.e. close to the end plate, is a front side turntable 2; the turntable located at the rear side, i.e. near the plug end of the socket, is a rear turntable 3. The front side rotary disc 2 and the rear side rotary disc 3 are respectively provided with a front side rotary disc through hole 22 and a rear side rotary disc through hole 32, the number of the rotary disc through holes on the two rotary discs is equal to the number of the end plate through holes 12 on the end plate, when the rotary discs are located at specific circumferential positions, the front side rotary disc through hole and the rear side rotary disc through hole can axially correspond to the end plate through holes and correspond to the contact elements on the socket plug-in end, and thus the end plate through holes and the front side rotary disc through holes and the rear side rotary disc through holes jointly form a plug-in channel for the plug contact elements to penetrate through and be plugged in with the socket contact elements.

In this embodiment, the inner wall of the cylindrical end cap is provided with front and rear

curved grooves

10, 11 corresponding to the front and rear turntables, respectively, and the outer peripheral surfaces of the front and rear turntables are provided with front and

rear sliders

21, 31 engaged with the corresponding front and rear curved grooves, respectively. The front and rear rotary discs can relatively rotate in the circumferential direction and relatively move in the axial direction relative to the cylindrical end cover through the matching of the corresponding curved grooves and the sliding blocks. When the front and rear rotating disks slide to the front limit position in the axial direction along the curved groove, the front and rear rotating disk through holes are axially opposite to the end plate through holes, and when the front and rear rotating disks slide to the rear position (which can be the rear limit position or a certain position in the backward movement stroke) in the axial direction along the curved groove, the front and rear rotating disk through holes and the end plate through holes are circumferentially staggered in pairs. It should be noted that the front and rear curved grooves corresponding to the front and rear turntables are rotated in opposite directions, that is, when the front and rear turntables are rotated along the front and rear curved grooves, the front and rear turntables are rotated in opposite directions.

The front and rear turntables are respectively provided with a pushing part at the position corresponding to one of the end plate through holes of the end plate. One of the front turntable through holes is a front turntable long hole 23 extending in the circumferential direction, and the rear turntable through hole corresponding to the long hole 23 of the rear turntable is also a rear turntable long hole 33 extending in the circumferential direction. A front extension section 330 extending forwards, namely towards the front turntable is arranged at the hole edge of one side of the rear turntable long hole 33, the front extension section 330 extends into the front turntable long hole 23 and is flush with the front side surface of the front turntable, the front side surface of the front extension section 330 forms a pushing part of the rear turntable, and the front side hole edge of the front turntable long hole 23 circumferentially opposite to the front extension section 330 forms a pushing part of the front turntable.

The end face cover assembly of the socket of the present invention further comprises a ripple spring 4. The ripple spring 4 is positioned between the socket plugging end and the rear side rotary disc and provides forward elastic acting force for the front and rear side rotary discs, so that the front and rear side rotary discs are kept at the front limit position in a natural state.

Specifically, the middle part of the front side turntable is provided with a front turntable avoiding hole, the rear side hole edge of the front turntable avoiding hole is provided with a rear extending section 26 extending backwards, the middle part of the rear side turntable is provided with a rear turntable avoiding hole, the inner hole wall of the rear turntable avoiding hole is provided with an arc convex edge 36 protruding inwards in the radial direction, and the front turntable avoiding hole and the rear turntable avoiding hole axially correspond to the connecting hole 14 on the end plate and are used for a connecting screw to pass through. When the front and rear turntables are installed in the cylindrical end cover, the arc-shaped convex edges 36 staggered in the circumferential direction of the rear extension section extend into the rear turntable avoiding hole, and the rear side surface of the rear extension section is flush with the annular surface formed by the rear side surface of the arc-shaped convex edge. The arc-shaped convex edge 36 and the rear extension section 26 are not completely closed in the circumferential direction, as shown in fig. 15, that is, the sum of the corresponding central angles of the arc-shaped convex edge and the rear extension section is less than 360 degrees, so that the front rotary table and the rear rotary table can rotate relatively in the circumferential direction. The corrugated spring is in abutting fit with a ring surface formed by the rear side surface of the rear extension section of the front side rotary disc and the arc convex edge rear side surface, and meanwhile, forward elastic acting force is provided for the front side rotary disc and the rear side rotary disc. In addition, an inner cylinder section 16 extending backwards through the front turntable avoiding hole and the rear turntable avoiding hole is arranged on the periphery of the connecting hole on the end plate, and an annular space between the inner cylinder section 16 and the rear turntable avoiding hole forms an accommodating space for accommodating the corrugated spring 4.

The end face covering assembly of the socket of the invention further comprises a sealing ring 5 made of insulating material, the sealing ring 5 being interposed, in use, between the bellow spring and the socket, so as to completely confine and insulate the bellow spring 4 in the containment space.

In addition, in order to facilitate the installation of the rotary table into the cylindrical end cover, an inner annular groove 15 is arranged at one end, close to the opening, of the inner cylinder wall of the cylindrical end cover, the groove bottom of the inner annular groove 15 extends to the end face at the rear side of the cylindrical end cover, and the groove bottom of the inner annular groove 15 is not higher than that of the curved groove, so that a sliding block on the outer peripheral surface of the rotary table conveniently slides into the corresponding curved groove along the inner annular groove.

The plug of the present invention is shown in fig. 3-6, and comprises a plug housing 9, a plurality of contact elements extending from the plugging end of the plug housing 9, the contact elements including a conductive contact element 91 and a grounding contact element 90, wherein the grounding contact element 90 has an extension section extending beyond the other conductive contact element 91 in the plugging direction, and the end of the extension section is coated with a wear-resistant coating and forms a pressing portion of the pushing rod.

When the plug and the socket are used, the plug is aligned with the end face covering assembly of the socket and inserted into the socket, the extension section of the grounding contact element 90 on the plug is firstly contacted with the pushing parts of the two turntables of the end face covering assembly and pushes the turntables backwards, the two turntables rotate in the process of moving backwards under the force from the front limit until being pushed to the rear side, the turntable through holes on the two turntables axially correspond to the end plate through holes, and at the moment, the contact element on the plug is inserted into the socket from the formed inserting and closing channel and is inserted into the socket contact element 80 to complete the inserting and closing action of the plug and the socket. After the plug is pulled out, the corrugated spring 4 pushes the two turntables to move forwards, the turntables rotate relative to the cylindrical end cover in the process of moving forwards to the front limit position, and when the turntables move to the front limit position, the turntable through holes in the two turntables and the end plate through holes in the end plate are staggered in pairs, so that the plug end of the socket is sealed and covered.

Of course, the socket of the present invention is not limited to the above-described embodiment.

For example, in the second embodiment of the socket, the structure of the end face cover assembly of the socket is different from that of the first embodiment. In this embodiment, as shown in fig. 19, the front and rear

curved grooves

27, 37 are provided on the outer peripheral surfaces of the front and rear turntables, the front and

rear sliders

17, 18 are provided on the inner wall of the cylindrical end cap, and the turntables and the cylindrical end cap are rotated circumferentially during the axial movement by the cooperation of the curved grooves on the turntables and the sliders on the cylindrical end cap.

For example, in the third embodiment of the socket, the structure of the end face cover assembly of the socket is different from that of the first embodiment. The connecting hole of the end cover, which is used for being connected with the socket, is not arranged in the middle of the end plate of the end face covering assembly, the center position of the end plate is provided with a guide rod which axially extends inwards, a curved groove is arranged on the peripheral surface of the guide rod, and the rotary disc is provided with a slide block and is sleeved along the curved groove in a sliding manner, so that the rotary disc and the cylindrical end cover rotate circumferentially and relatively in the process of moving axially relative to the cylindrical end cover; of course, a simple modification of the third embodiment is possible, for example, the curved groove is provided on the inner hole surface of the turntable, and the slider is provided on the outer peripheral surface of the guide rod.

For another example, the bellows spring in the end face cover assembly may be replaced by a cylindrical compression spring disposed at the same position, or even a tension spring may be disposed between the end plate and the turntable, but this results in a complicated structure.

Or in other embodiments, the pushing part is not arranged on the turntable positioned at the rear side, and the front turntable moves backwards to push the turntable to move backwards; similarly, the front turntable is not provided with a rear extension section, and the spring pushes the rear turntable to move forwards to drive the front turntable to move forwards for resetting.

Even more, the end face covering assembly may have one turntable without a rear side turntable; or three or more turntables, but this not only does not further optimize the covering effect, but also increases the volume and complexity of the structure.

Or in other socket embodiments, the outer edge of the plug end face of the socket may be provided with a forward extending cylindrical structure, the cylindrical structure of the cylindrical end cap in the embodiment is replaced by the cylindrical structure, in this case, the cylindrical end cap may be replaced by a circular sealing plate, the rotary disc, the corrugated spring and the sealing ring are mounted in the cylindrical structure provided on the plug end of the socket, the circular sealing plate is fixedly connected with the cylindrical structure on the plug end, the curved groove and the sliding block which form the screw driving structure are arranged on the inner wall surface of the cylindrical structure, and one is arranged on the rotary disc.

Still alternatively, in another embodiment of the socket, a guide rod extending forward may be disposed at a central position of the insertion end surface of the socket, the rotary plate is fitted with the guide rod, and the screw driving structure is a curved groove disposed on one of an outer peripheral surface of the guide rod and an inner hole surface of the rotary plate and a slider disposed on the other.

Other embodiments of the plug are possible. For example, a push rod extending along the plugging direction is arranged at the plugging end of the plug, the front end of the push rod forms a pushing part, the push rod is not used as a contact element, and is only used for being matched with a rotary disc in an end face covering assembly on the socket in a pushing manner to enable the rotary disc to rotate to form a plugging channel. Or, the conductive contact element is used as the ejector rod; the invention can be even further expanded on the basis of the inventive concept, more than two push rods can be provided, and when the plug is inserted into the socket, the push parts on the rotating disc are pushed by the plurality of push rods.

The end face cover assembly of the present invention is the same in structure as the end face cover assembly of the above-described socket including the end face cover assembly, and a description thereof will not be repeated.

Claims

1. An end face covering assembly is characterized by comprising a cylindrical end cover with an end plate at one end and an opening at one end, wherein at least one rotary table is installed in the cylindrical end cover, and the rotary table and the end cover can relatively rotate in the circumferential direction and relatively move in the axial direction through the sliding fit of a curved groove on one rotary table and a sliding block on the other rotary table; the end plate and the rotary disc are respectively provided with an end plate through hole and a rotary disc through hole, when the rotary disc is positioned at a front limit position close to the end plate, the end plate through hole and the rotary disc through hole are staggered, and when the rotary disc is positioned at a rear position far away from the end plate, the end plate through hole and the rotary disc through hole are axially superposed and form an inserting passage for a contact element of an adaptive plug to pass through; the rotary disc close to the end plate is provided with a pushing part which is pushed backwards by a pushing rod of the adaptive plug at a position corresponding to the perforation of the end plate, and the assembly also comprises an elastic element which provides forward acting force for the rotary disc to keep the rotary disc at the front limit.

2. The end face cover assembly of claim 1 wherein said two rotatable disks rotate in opposite directions when juxtaposed in the plugging direction and move in the same axial direction.

3. The end face shield assembly of claim 2 wherein at least one of the disk perforations on the front disk is a circumferentially extending slot, the rear disk has a forward extending section extending into the slot, the forward side of the forward extending section forming a pushing portion which is pushed rearwardly by the ejector pin of the adapter plug.

4. The end face shield assembly of claim 3 wherein the forward hole edge of the slot circumferentially opposite the forward extending section of the rear turntable forms the urging portion of the turntable.

5. The end face shield assembly of claim 1 or 2 or 3 or 4 wherein said curved groove is provided on the outer peripheral surface of the turntable and said slider is provided on the inner cylindrical wall of the cylindrical end cap.

6. The end face shield assembly of claim 1 or 2 or 3 or 4 wherein said curved groove is provided in the inner cylindrical wall of the cylindrical end cap and said slider is provided on the outer circumferential surface of the turntable.

7. The end face shield assembly of claim 6 wherein the inner wall of the cylindrical end cap has an inner annular groove extending from the bottom of the inner annular groove to the rear end face of the cylindrical end cap at an end adjacent the opening, the bottom of the inner annular groove being no higher than the bottom of the curved groove.

8. The end face shield assembly of claim 1, 2, 3 or 4 wherein the end plate has a central portion provided with an axially inwardly extending guide bar, said curved groove being provided in the guide bar and the rotatable plate being provided with said slide block and slidably received along the curved groove.

9. An end face shield assembly according to claim 1 or 2 or 3 or 4 wherein the resilient member is a wave spring which, in use, is located between the turntable and the spigot end face of the socket.

10. The end face covering assembly according to claim 2, 3 or 4, wherein the elastic member is a corrugated spring which is located between the rotary plate and the insertion end face of the socket when in use, the middle part of the rotary plate located at the rear side is provided with a rear rotary plate avoiding hole, the rotary plate located at the front side is provided with an arc rear extending section extending into the rear rotary plate avoiding hole, the rotary plate located at the rear side is provided with a ring face flush with the rear side face of the arc rear extending section, and the corrugated spring is in abutting fit with the rear side face of the arc rear extending section and the ring face.

11. The end face covering assembly according to claim 10, wherein the rear turntable relief hole has an arcuate rim on an inner wall thereof, and the annular surface is a rear side of the arcuate rim.

12. The end face shield assembly of claim 10 wherein the front turntable avoiding hole is formed in the front turntable at a position corresponding to the rear turntable avoiding hole, and the end plate is provided with a connecting hole for connecting to the socket at a position corresponding to the front and rear turntable avoiding holes.

13. The end face shield assembly of claim 12 wherein the end plate has an inner cylindrical section extending rearwardly through the front and rear turntable relief holes at the periphery of the connection hole, the annulus between the inner cylindrical section and the rear turntable relief hole defining a receiving space for the bellows spring.

14. The end face shield assembly of claim 13 further comprising a sealing ring interposed, in use, between the bellows spring and the receptacle.

15. A socket comprises a socket shell and is characterized in that an end plate is fixedly installed on the front side of an insertion end face of the socket shell, at least one rotary disc is arranged between the end plate and the insertion end face, the rotary disc can rotate in the circumferential direction when moving axially under the action of a spiral driving structure, an end plate through hole and a rotary disc through hole are respectively formed in the end plate and the rotary disc, the end plate through hole and the rotary disc through hole are staggered when the rotary disc is positioned close to a front limit of the end plate, and the end plate through hole and the rotary disc through hole are axially overlapped and form an insertion passage for a contact element of an adaptive plug to pass through when the rotary disc is positioned far away; the rotary disc close to the end plate is provided with a pushing part pushed backwards by a pushing rod of the adaptive plug, and the socket also comprises an elastic piece which provides forward acting force for the rotary disc to keep the rotary disc at the front limit position.

16. The receptacle of claim 15 wherein said two rotatable disks rotate in opposite directions when moved axially in the same direction and are juxtaposed in the plugging direction.

17. The socket as claimed in claim 16, wherein at least one of the turntable holes of the front turntable is a long hole extending in the circumferential direction, and the rear turntable has a front extension portion extending into the long hole, and a front side surface of the front extension portion constitutes a pushing portion pushed rearward by the pushing rod of the mating plug.

18. The socket of claim 17, wherein the forward hole edge of the slot circumferentially opposite the forward extending section of the rear turntable forms the pushing portion of the turntable.

19. The socket of claim 15, 16, 17 or 18 wherein the end plate or the socket housing has a cylindrical wall surrounding the outer periphery of the rotatable plate, and the screw driving structure is a curved groove formed in one of the cylindrical wall and the rotatable plate and a slider formed in the other.

20. The socket of claim 19 wherein the curved groove is provided on the outer peripheral surface of the rotatable disk and the slider is provided on the cylindrical wall.

21. The socket of claim 19 wherein the curved groove is provided on the barrel wall and the slider is provided on the outer peripheral surface of the turntable.

22. The socket of claim 21 wherein said socket includes a closed end and an open end cylindrical end cap, the opening of the cylindrical end cap being in facing engagement with the mating end of the socket housing, the closure plate of the closed end of the cylindrical end cap defining said end plate and the cylindrical portion of the cylindrical end cap defining said cylindrical wall.

23. The socket of claim 22 wherein the inner wall of the cylindrical end cap has an inner annular groove extending from the bottom of the inner annular groove to the rear end face of the cylindrical end cap at an end adjacent the opening, the bottom of the inner annular groove being no higher than the bottom of the curved groove.

24. A socket according to claim 15, 16, 17 or 18, wherein the end plate or the socket housing is provided at a central position thereof with an axially extending guide rod, the rotatable plate is fitted with the guide rod, and the screw driving structure includes a curved groove provided on one of an outer peripheral surface of the guide rod and an inner hole surface of the rotatable plate and a slider provided on the other.

25. A socket according to claim 15 or 16 or 17 or 18, wherein the resilient member is a wave spring located, in use, between the rotatable disc and the mating end face.

26. The socket according to claim 16, 17 or 18, wherein the elastic member is a corrugated spring disposed between the rotary plate and the insertion end surface of the socket in use, the rotary plate at the rear side has a rear rotary plate avoiding hole at the middle portion thereof, the rotary plate at the front side is provided with an arc rear extension section extending into the rear rotary plate avoiding hole, the rotary plate at the rear side has a ring surface flush with the rear side surface of the arc rear extension section, and the corrugated spring is in press fit with the rear side surface of the arc rear extension section and the ring surface.

27. The socket of claim 26, wherein the inner wall of the back plate relief hole is provided with an arc-shaped convex edge, and the ring surface is a back side surface of the arc-shaped convex edge.

28. The socket of claim 26, wherein the front turntable avoiding hole is formed at a position corresponding to the rear turntable avoiding hole on the turntable at the front side, and the end plate is provided with a connection hole for connection with the socket at a position corresponding to the front and rear turntable avoiding holes.

29. The receptacle of claim 28, wherein the end plate has an inner cylindrical section extending rearwardly through the front and rear disc relief holes at the periphery of the connection hole, the annular space between the inner cylindrical section and the rear disc relief hole defining a receiving space for the bellows spring.

30. The socket of claim 26 further comprising a sealing ring interposed, in use, between the bellows spring and the socket.

31. A plug comprises a plug shell, wherein the front end of the plug shell is a plugging end, and the plug is characterized in that the plugging end is provided with a push rod extending along the plugging direction, and the tail end of the push rod is provided with a top pressing part for pushing a pushing part of a turntable matched with a socket; the adaptive socket comprises a socket shell, an end plate is fixedly installed on the front side of the socket shell at the inserting end face of the socket shell, at least one rotary table is arranged between the end plate and the inserting end face of the socket shell, the rotary table can rotate in the circumferential direction under the action of a spiral driving structure when moving in the axial direction, an end plate through hole and a rotary table through hole are respectively arranged on the end plate and the rotary table, when the rotary table is positioned close to the front limit of the end plate, the end plate through hole and the rotary table through hole are staggered, and when the rotary table is positioned far away from the rear side of the end plate, the end plate through hole and the rotary table through hole are axially superposed; the pushing part of the turntable of the socket is positioned on the turntable close to the end plate, and the socket also comprises an elastic element which provides forward acting force for the turntable so as to keep the turntable in a front limit position.

32. The plug of claim 31 wherein at least two contact members extend from the mating end, one of the contact members forming the ejector pin having an extension that extends beyond the other contact member in the mating direction, the abutment portion being located at the end of the extension.

33. The plug of claim 32 wherein the contacts comprising the ejector pin are ground contacts.

34. A plug according to claim 31, 32 or 33, wherein the outer surface of the abutment portion is provided with a wear-resistant coating.