CN109818185B - Socket and terminal surface cover subassembly, plug thereof - Google Patents

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

A socket and its end face covering assembly and plug

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 adapted to the socket.

Background technique

In order to prevent the plug end of the connector from being affected by the external environment such as dust and moisture when it is not in use, and to prevent the conductive contact from undesired contact with other external things, an end face covering component is usually provided on the end face of the plug end of the connector. For example, Chinese Patent Application No. 92224702.1 and Chinese Patent Application No. 98215374.0 respectively disclose two different sockets, both of which are provided with end face covering components at the plug-in ends, so as to ensure that the contacts of the sockets are covered in a natural state Inward and isolated from the external environment. However, when these two sockets are in use, that is, when the adapted plug is inserted into it, the plug needs to be rotated until the hole on which the turntable is rotated corresponds to the contact of the socket and the plug is further inserted, so as to realize Mutual mating of plugs and sockets. This is more troublesome when mating, and it is not applicable when the mating space is relatively limited, that is, there is not enough space for the plug to rotate.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a socket with a shielding function that is convenient to use, and also provides an end face covering assembly of the socket and a plug adapted to the socket.

The end cover assembly of the present invention includes a cylindrical end cover with an end plate at one end and an open end at one end, at least one turntable is installed in the cylindrical end cover, and the turntable and the end cover slide through a curved groove on one and a slider on the other The end plate and the turntable are respectively provided with end plate perforations and turntable perforations. When the turntable is in the front limit position close to the end plate, the end plate perforations and the turntable perforations are staggered, and the turntable is in When it is away from the rear side of the end plate, the end plate perforation and the turntable perforation are axially coincident and form an insertion channel for the contacts of the adapter plug to pass through; The ejector part where the ejector rod of the adapter plug is pushed back. In this way, when the adapted plug is inserted into the socket, the push rod on it passes through the perforation of the end plate and pushes the push part, and the pushed turntable is forced to move backwards and rotate under the guidance of the curved groove. , and until it moves axially to the rear side and the turntable perforations on it are axially coincident with the end plate perforations, the contacts on the plug are inserted into the socket through the formed insertion channel and plugged with the socket contacts to complete the plug. The socket is inserted, and the insertion process is very convenient. Not only that, the assembly also includes an elastic member that provides a forward force for the turntable to keep it at the front limit position, so that the turntable can be automatically reset after the plug is pulled out of the socket, and the plug end of the socket is covered.

On the basis of the previous basic solution, two turntables can be provided in the design. When the two turntables are arranged side by side in the insertion direction and move in the same direction in the axial direction, the circumferential direction rotates in the opposite direction. The rotation directions of the two turntables are opposite, that is to say, during the plug insertion process, the turntable perforations on the two turntables rotate close to each other in the circumferential direction until the axial direction corresponds. Rotate away from each other until they are axially staggered, which can ensure that the socket has a better sealing effect when it is not in use.

Then when two turntables are arranged, at least one turntable of the turntable on the front side is perforated as a circumferentially extending long hole, and the turntable on the rear side has a forward stretched section extending into the long hole, and the front side of the forward stretched section has It constitutes a pushing part that is pushed back by the pushing rod of the adapted plug. There is also a push portion on the rear turntable, which can simultaneously push the turntable on the rear side through the ejector rod during the process of inserting the plug into the socket, thus avoiding that the ejector rod only pushes the front side turntable and passes through the front side turntable. When moving backwards, the turntable on the rear side is pushed backwards so as to cause the rear turntable to move backwards, which is easy to get stuck and exert a large force.

Further, in a simplified design, the front side hole of the long hole, which is circumferentially opposite to the forward extension of the rear side turntable, constitutes the push portion of the turntable, so that the push portions on the front and rear turntables are adjacent to each other. When the plug is inserted into the socket, the pushing parts of the two turntables can be pushed simultaneously through one contact piece.

Four technical solutions for the end face covering assembly are provided above, and on the basis of the four technical solutions, a variety of parallel optimal design and continuous optimal design optimization solutions can be obtained.

For example, for the curved groove slider mechanism, the curved groove can be set on the outer peripheral surface of the turntable, and the sliding block can be set on the inner cylinder wall of the cylindrical end cover; On the cylinder wall, the sliding block is arranged on the outer peripheral surface of the turntable.

Then, when the curved groove is arranged on the outer peripheral surface of the turntable, an inner ring groove with the bottom of the groove extending to the rear end face of the cylindrical end cover can be provided on the inner cylindrical wall of the cylindrical end cover at one end near the opening, and the inner ring The groove bottom of the groove is not higher than the groove bottom of the curved groove, so that the turntable can be easily installed into the cylindrical end cover along the chute.

For another example, for the curved groove slider structure, a guide rod extending axially inward can also be provided at the center of the end plate, the curved groove is provided on the guide rod, and the slider is provided on the turntable and slides along the curved groove.

For example, the elastic member may be a corrugated spring which is located between the turntable and the plug end face of the socket during use. Especially when there are two turntables, a rear turntable avoidance hole can be placed in the middle of the turntable on the rear side, and an arc-shaped rearward extension extending into the rear turntable avoidance hole is arranged on the turntable on the front side, and is located on the rear side. The turntable has an annular surface that is flush with the rear side of the arc-shaped rear extension. In this way, the corrugated spring can push both the front and rear turntables at the same time through press fit with the rear side of the arc-shaped rear extension and the annular surface, so as to promote the two turntables to return to the front limit position stably and reliably.

Then, in a simplified design, an arc-shaped convex edge can be provided on the inner wall of the escape hole of the rear turntable, and the annular surface is the rear side of the arc-shaped convex edge. It is also possible to set the front turntable avoidance holes on the turntable located on the front side at the positions corresponding to the rear turntable avoidance holes. In this way, there are avoidance holes on the front and rear turntables and the front and rear turntable avoidance holes are also axially opposite. Connecting holes for connecting with the socket are arranged at the positions of the avoidance holes of the front and rear turntables, so as to facilitate the connection between the end face covering component and the socket. Further, an inner cylinder section extending backward through the escape holes of the front and rear turntables is arranged on the periphery of the connecting hole on the end plate, and the annular space between the inner cylinder section and the escape hole of the rear turntable constitutes an accommodation space for accommodating the corrugated spring. , so that the corrugated spring can be limited in the accommodating space to ensure its stable and reliable operation. Further, it can be defined that the assembly also includes a sealing ring sandwiched between the corrugated spring and the socket when in use, so that the corrugated spring can be completely insulated and isolated by the sealing ring.

The socket of the present invention includes a socket housing, the socket housing is fixedly installed with an end plate on the front side of the plug end face, and at least one turntable is arranged between the end plate and the plug end face, and the turntable can rotate on the shaft under the action of the screw drive structure. When moving in the direction of rotation, the end plate and the turntable are respectively provided with end plate perforations and turntable perforations. When the turntable is at the front limit position close to the end plate, the end plate perforations and the turntable perforations are staggered, and the turntable is at the rear side away from the end plate. When the hole of the end plate and the through hole of the turntable are axially overlapped and form an insertion channel for the contact piece of the adapter plug to pass through; the turntable close to the end plate has a push portion that is pushed backward by the push rod of the adapter plug , the socket also includes an elastic piece that provides a forward force for the turntable to keep it at the front limit position.

In this way, when the matched plug is inserted into the socket, the push rod on it passes through the perforation of the end plate and pushes the push part, and the pushed turntable is forced to move backward under the guidance of the screw drive structure. Rotate until it axially moves to the rear side and the turntable perforations on it are axially coincident with the end plate perforations, the contacts on the plug are inserted into the socket through the formed insertion channels and are inserted into the socket contacts, completing the The plug and socket are mated, and the mating process is very convenient. By arranging the elastic piece, it is convenient that the turntable can be automatically reset after the plug is pulled out of the socket, and the plug end of the socket is covered.

On the basis of the previous basic solution, two turntables can be provided in the design. When the two turntables are arranged side by side in the insertion direction and move in the same direction in the axial direction, the circumferential direction rotates in the opposite direction.

Then when two turntables are arranged, at least one turntable of the turntable on the front side is perforated as a circumferentially extending long hole, and the turntable on the rear side has a forward stretched section extending into the long hole, and the front side of the forward stretched section has It constitutes a pushing part that is pushed back by the pushing rod of the adapted plug.

Further, in a simplified design, the front side hole of the long hole, which is circumferentially opposite to the forward extension of the rear side turntable, constitutes the push portion of the turntable, so that the push portions on the front and rear turntables are adjacent to each other. When the plug is inserted into the socket, the pushing parts of the two turntables can be pushed simultaneously through one contact piece.

Four technical solutions for sockets are provided above, and on the basis of the four technical solutions, a variety of parallel optimization design and continuous optimization design optimization solutions can be made according to the setting mode of the screw drive structure.

For example, the end plate or the socket housing is provided with a cylindrical wall surrounding the outer circumference of the turntable, and the screw drive structure is a curved groove and a slider set on one of the cylindrical wall and the turntable, and the curved groove can be set on the other. It is arranged on the outer peripheral surface of the turntable, and the slider is arranged on the inner wall of the cylindrical end cover; .

When the cylindrical wall is arranged on the end plate, a cylindrical end cap with one end closed and one end open can be obtained. At this time, the socket includes a cylindrical end cap with one end closed and one end open. The opening of the cylindrical end cap is connected to the socket. The plug-in end faces of the housing are opposed to each other, the sealing plate of the closed end of the cylindrical end cap constitutes the above-mentioned end plate, and the cylindrical portion of the cylindrical end cap constitutes the above-mentioned cylindrical wall.

And further, when the curved groove is arranged on the outer peripheral surface of the turntable, an inner ring groove with the bottom of the groove extending to the rear end face of the cylindrical end cover can be provided on the inner cylindrical wall of the cylindrical end cover at one end close to the opening, and the The groove bottom of the inner ring groove is not higher than the groove bottom of the curved groove, so that the turntable can be easily installed into the cylindrical end cover along the chute.

Or, for another example, an axially extending guide rod may be provided at the central position of the end plate or the socket housing, the turntable and the guide rod are inserted into the sleeve, and the screw drive structure includes a hole arranged on the outer peripheral surface of the guide rod and the inner hole of the turntable. Curved grooves on one of the faces and sliders on the other.

For example, the elastic member may be a corrugated spring which is located between the turntable and the plug end face of the socket during use. Especially when there are two turntables, a rear turntable avoidance hole can be placed in the middle of the turntable on the rear side, and an arc-shaped rearward extension extending into the rear turntable avoidance hole is arranged on the turntable on the front side, and is located on the rear side. The turntable has an annular surface that is flush with the rear side of the arc-shaped rear extension.

Then, in a simplified design, an arc-shaped convex edge can be provided on the inner wall of the escape hole of the rear turntable, and the annular surface is the rear side of the arc-shaped convex edge. It is also possible to set the front turntable avoidance holes on the turntable located on the front side at the positions corresponding to the rear turntable avoidance holes. In this way, there are avoidance holes on the front and rear turntables and the front and rear turntable avoidance holes are also axially opposite. Connecting holes for connecting with the socket are arranged at the positions of the avoidance holes of the front and rear turntables, so as to facilitate the connection between the end face covering component and the socket. Further, an inner cylinder section extending backward through the escape holes of the front and rear turntables is arranged on the periphery of the connecting hole on the end plate, and the annular space between the inner cylinder section and the escape hole of the rear turntable constitutes an accommodation space for accommodating the corrugated spring. . Further, it can be defined that the assembly also includes a sealing ring sandwiched between the corrugated spring and the socket when in use, so that the corrugated spring can be completely insulated and isolated by the sealing ring.

The plug of the present invention is adapted to the above-mentioned socket, and includes a plug housing. The push portion of the push portion of the turntable with the socket.

It is well known that there are generally at least two contact pieces protruding from the plug-in end, then when the ejector rod is provided, one of the contact pieces may constitute the ejector rod, and the contact piece has the ability to exceed the other contacts in the insertion direction. The extension section of the piece, the top pressing part is arranged at the end of the extension section.

Considering the influence on the use effect of the plug, the ground contact can be formed as a push rod.

In addition, since the ejector rod is in use with the turntable ejector, in order to slow down its wear, a wear-resistant coating can be provided on the outer surface of the ejector portion.

Description of drawings

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

2 is a schematic structural diagram of the socket of the present invention after removing the dust cover;

3 is a schematic structural diagram of Embodiment 1 of the plug of the present invention;

4 is a schematic structural diagram of the plug of the present invention after the locking structure is removed;

5 is a schematic diagram of the plug and socket of the present invention when they are inserted;

6 is a schematic diagram of the plug and socket of the present invention when the insertion is completed;

7 is an exploded perspective view of the end face covering assembly of the present invention;

Figure 8 is a schematic diagram of the grounding pin on the plug before it is inserted into the end face covering assembly;

Fig. 9 is the schematic diagram after the grounding pin on the plug is inserted into the end face covering assembly;

10 is a schematic diagram of the end face covering assembly before the grounding pins on the plug are inserted into the end face covering assembly;

Figure 11 is a sectional view at A-A in Figure 10;

12 is a schematic diagram of the end face covering assembly after the ground pins on the plug are inserted into the end face covering assembly;

Figure 13 is a sectional view at B-B in Figure 12;

14 is a schematic diagram of the position of the turntable in the end face covering assembly before the grounding pin on the plug is inserted into the end face covering assembly;

Fig. 15 is a schematic diagram showing the same state as Fig. 14 but a different viewing angle from Fig. 14;

Fig. 16 is the structural representation of the turntable on the front side;

17 is a schematic structural diagram of a turntable on the rear side;

Figure 18 is a schematic structural diagram of a cylindrical end cap;

FIG. 19 is an exploded perspective view of the end face covering assembly of the second embodiment.

Detailed ways

The embodiments of the present invention will be further described below with reference to the accompanying drawings.

The specific embodiment 1 of the socket of the present invention, as shown in FIG. 1 to FIG. 2, includes a socket housing 8, the front end of the socket housing 8 has a plug end 81, and the front end face of the plug end 81 is a plug end face 800, A dust cover 82 is installed on the outer side of the plug-in end 81, and an end surface cover assembly 89 is installed at the front end. The plug terminal 81 includes a cylindrical insulator, and the socket contact is installed in the cylindrical insulator. The cylindrical insulator is provided with a socket for the plug contact to be inserted and contacted with the socket contact. In this embodiment, the plug end face is the front of the cylindrical insulator. side. In essence, the plug end face refers to the end face of the socket located on the front side of the contact piece, and the end face may be the end face of the socket housing or the end face of the insulator.

The structure of the end cover assembly and its components is shown in Figure 7-18. Specifically, it includes a cylindrical end cover 1 , one end of the cylindrical end cover is open, one end is provided with an end plate, and the open end of the cylindrical end cover is buckled with the insertion end of the socket. The middle part of the end plate is provided with a connecting hole 14 for connecting with the plug end of the socket. End plate perforations 12 for the plug contacts to pass through are evenly arranged around the circumference of the connection hole on the end plate.

The end face covering assembly further includes two turntables, which are installed side by side in the cylindrical end cover 1 in the insertion direction. The turntable located on the front side, that is, close to the end plate, is the front side turntable 2; Front turntable 2 and rear turntable 3 are respectively provided with front turntable perforations 22 and rear turntable perforations 32. The number of turntable perforations on the two turntables is equal to the number of end plate perforations 12 on the end plate, and the When the turntable is located at a specific circumferential position, the front side turntable perforations and the rear side turntable perforations can axially correspond to the end plate perforations and correspond to the contacts on the plug-in end of the socket, so that the end plate perforations and the front and rear side turntable perforations A mating channel for the plug contacts to pass through and to engage with the socket contacts is formed together.

In this embodiment, the front and rear curved grooves 10 and 11 corresponding to the front and rear side turntables are respectively provided on the inner cylinder wall surface of the cylindrical end cover, and the front and rear side turntables are respectively provided with corresponding front and rear curved grooves 10 and 11 on the outer peripheral surfaces of the front and rear side turntables. , The front and rear side sliders 21 and 31 matched with the rear side curved groove. The front and rear side turntables can rotate relative to the cylindrical end cover in the circumferential direction and move relatively in the axial direction through the cooperation of the corresponding curved grooves and the sliding blocks. When the front and rear side turntables slide along the curved groove to the front limit position in the axial direction, the front and rear side turntable perforations are axially opposite to the end plate perforations. When the limit position is reached, it can also be a certain position in the backward movement stroke), the front and rear side turntable perforations and the end plate perforations are staggered in two and two directions. It should be noted that the rotation directions of the front and rear side turntables corresponding to the front and rear side turntables are opposite.

The front and rear turntables are respectively provided with pushing parts at the perforated positions of one of the end plates corresponding to the end plates. One of the front turntable perforations of the front turntable is a circumferentially extending front turntable long hole 23 , and the rear turntable perforation of the rear turntable corresponding to the long hole 23 is also a circumferentially extending rear turntable long hole 33 . One side of the long hole 33 of the rear turntable is provided with a forward extension 330 extending forward, that is, toward the front turntable. The forward extension 330 extends into the long hole 23 of the front turntable and is flush with the front side of the front turntable. The front side of the forward extension 330 constitutes the push portion of the rear turntable, and the front side hole edge of the front turntable slot 23 circumferentially opposite to the forward extension 330 constitutes the push portion of the front turntable.

The end face covering assembly of the socket of the present invention further includes a corrugated spring 4 . The corrugated spring 4 is located between the plug end of the socket and the rear turntable, and provides forward elastic force to the front and rear turntables, so that the front and rear turntables are kept at the front limit position in a natural state.

Specifically, the middle part of the front turntable is provided with a front turntable avoidance hole, the rear side hole of the front turntable is provided with a rear extension 26 extending backward, and the middle part of the rear turntable is provided with a rear turntable avoidance hole, and the rear turntable is provided with an escape hole. The inner hole wall of the escape hole is provided with an arc-shaped convex edge 36 that protrudes radially inward. The escape hole of the front and rear turntables is axially corresponding to the connecting hole 14 on the end plate and is passed through by the connecting screw. When the front and rear side turntables are installed in the cylindrical end cover, the arc-shaped protruding edge 36 of the rear extension is circumferentially staggered and protrudes into the escape hole of the rear turntable, and the rear side of the rear-extending segment and the rear side of the arc-shaped protruding edge form a ring. face flush. The arc-shaped convex edge 36 and the rear extension 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 two is less than 360°, so that the front and rear side turntables can rotate relative to each other in the circumferential direction. The corrugated spring is press-fitted with the rear side of the rearward extending section of the front side turntable and the annular surface formed by the arc-shaped convex along the back side surface, and at the same time provides forward elastic force for the front and rear side turntables. In addition, the end plate is provided with an inner cylinder section 16 extending backward through the avoidance holes of the front and rear turntables on the periphery of the connecting hole. .

The end face covering assembly of the socket of the present invention further includes a sealing ring 5 made of insulating material, and the sealing ring 5 is sandwiched between the corrugated spring and the socket during use, so that the corrugated spring 4 can be completely confined in the accommodating space and insulated open.

In addition, in order to facilitate the installation of the turntable into the cylindrical end cover, the inner cylindrical wall of the cylindrical end cover is provided with an inner ring groove 15 whose groove bottom extends to the rear end face of the cylindrical end cover at the end close to the opening. The groove bottom of 15 is not higher than the groove bottom of the curved groove, so that the slider on the outer peripheral surface of the turntable can slide into the corresponding curved groove along the inner ring groove.

As shown in Figures 3-6, the plug of the present invention includes a plug housing 9, and a plurality of contact pieces protrude from the plug end of the plug housing 9, and these contact pieces include a conductive contact piece 91 and a ground contact piece 90, wherein The ground contact piece 90 has an extension section extending beyond the other conductive contact pieces 91 in the plug-in direction, and the end of the extension section is coated with a wear-resistant plating layer and constitutes a pushing portion of the push rod.

When the plug and socket of the present invention are in use, the plug is aligned with the end face covering assembly of the socket and inserted into the socket, and the extension of the ground contact 90 on the plug first contacts the pushing parts of the two turntables of the end face covering assembly and pushes the turntables backward , the two turntables rotate during the backward movement from the front limit position under force until they are pushed to the rear side position. The turntable perforations on the two turntables are axially corresponding to the end plate perforations. The plug is inserted into the socket from the formed insertion channel to be plugged with the socket contact 80 to complete the plug-and-socket operation. After the plug is pulled out, the corrugated spring 4 pushes the two turntables to move forward, the turntables rotate relative to the cylindrical end cover during the process of moving forward to the front limit position, and when moving to the front limit position, the two turntables rotate relative to each other. The turntable perforations on each turntable and the end plate perforations on the end plates are staggered two by two, so as to realize the sealing and covering of the plug-in end of the socket.

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

For example, in the second embodiment of the socket, the structure of the end face covering component of the socket is different from that of the first embodiment. As shown in Fig. 19, in this embodiment, the front and rear side curved grooves 27, 37 are arranged on the outer peripheral surfaces of the front and rear side turntables, and the front and rear side sliders 17, 18 are arranged on the inner wall of the cylindrical end cover. , the turntable and the cylindrical end cover realize circumferential rotation in the process of axial movement through the cooperation of the curved groove on the turntable and the slider on the cylindrical end cover.

For example, in the third embodiment of the socket, the structure of the end face covering component of the socket is different from that of the first embodiment. The connecting hole of the end cover for connecting with the socket is not arranged in the middle of the end plate of the end cover assembly, but is provided with a guide rod extending axially inward at the center of the end plate, and the curved groove is arranged on the outer peripheral surface of the guide rod, A slider is provided on the turntable and the sleeve is slid along the curved groove, so that the turntable rotates relative to the cylindrical end cover in the circumferential direction during the axial movement of the turntable relative to the cylindrical end cover; The groove is arranged on the inner hole surface of the turntable, and the sliding block is arranged on the outer peripheral surface of the guide rod.

For another example, the corrugated spring in the end face covering assembly can be replaced by a cylindrical compression spring arranged in the same position, or even a tension spring can be arranged between the end plate and the turntable, but this will lead to a very complicated structure.

Or in other embodiments, the push-up portion may not be provided on the turntable on the rear side, but the rearward movement of the turntable on the front side may be pushed back by moving it backward; similarly, the rearward extension may not be provided on the turntable on the front side. Section, through the action of the spring pushing the rear side turntable forward, the front side turntable is moved forward and reset.

In fact, there may be one turntable of the end face covering assembly without rear turntable; or three or more turntables, but this not only does not further optimize the covering effect, but increases the volume and complexity of the structure.

Or in other socket embodiments, the outer edge of the plug-in end face of the socket can be provided with a cylindrical structure extending forward, and the cylindrical structure can replace the cylindrical structure of the cylindrical end cap in the embodiment. The end cover can be replaced by a circular sealing plate. The turntable, the corrugated spring and the sealing ring are installed in the cylindrical structure provided on the plug-in end of the socket. The circular sealing plate is fixedly connected with the cylindrical structure on the plug-in end to form a spiral. One of the curved groove and the sliding block of the driving structure is arranged on the inner wall surface of the cylindrical structure, and the other is arranged on the turntable.

Still alternatively, in other embodiments of the socket, the center position of the plug end face of the socket can be provided with a guide rod extending forward, the turntable is fitted with the guide rod insert sleeve, and the screw drive structure is arranged on the outer peripheral surface of the guide rod and the inner hole of the turntable. Curved grooves on one of the faces and sliders on the other.

Other embodiments of the plug are also possible. For example, a push rod extending along the insertion direction is provided at the plug end of the plug, and the front end of the push rod constitutes a push portion. The push rod is not used as a contact piece, but is only used to connect with the end face covering assembly on the socket. The turntable in the middle is pushed and matched to make the turntable rotate to form an insertion channel. Alternatively, the conductive contact piece is used as the ejector rod; it can even be further expanded on the basis of the inventive concept of the present invention, and there can be more than two ejector rods. The push-up part on the turntable.

The embodiment of the end face covering assembly of the present invention has the same structure as the end face covering assembly in the above-mentioned embodiment of the socket including the end face covering assembly, and will not be described again.

Claims (34)

1. An end cover assembly is characterized in that it comprises a cylindrical end cover with an end plate at one end and an open end at one end, at least one turntable is installed in the cylindrical end cover, and the turntable and the end cover pass through a curved groove on one and the other. The sliding block on one of them can be relatively rotated in the circumferential direction and the relative movement in the axial direction; the end plate and the turntable are respectively provided with end plate perforations and turntable perforations. The perforations of the turntable are staggered, and when the turntable is in the rear side position away from the end plate, the perforations of the end plate and the perforations of the turntable are axially coincident and form an insertion channel for the contacts of the adapter plug to pass through; The position of the perforation of the plate has a push portion that is pushed backward by the push rod of the adapter plug, and the assembly also includes an elastic piece that provides a forward force for the turntable to keep it at the front limit position. 2 . The end face covering assembly according to claim 1 , wherein there are two turntables, which are arranged side by side in the insertion direction and rotate in the opposite direction in the circumferential direction when they move in the same direction in the axial direction. 3 . 3 . The end face covering assembly according to claim 2 , wherein at least one of the turntables on the front side is perforated as a circumferentially extending long hole, and the turntable on the rear side has a forward protrusion extending into the long hole. 4 . The front side of the forwardly extending section constitutes a push portion that is pushed back by the push rod of the adapter plug. 4 . The end face covering assembly according to claim 3 , wherein the front side hole of the long hole, which is circumferentially opposite to the forward extending section of the rear side turntable, constitutes a pushing portion of the turntable. 5 . 5. The end cover assembly according to claim 1 or 2 or 3 or 4, wherein the curved groove is arranged on the outer peripheral surface of the turntable, and the slider is arranged on the inner wall of the cylindrical end cover . 6. The end cover assembly according to claim 1 or 2 or 3 or 4, wherein the curved groove is arranged on the inner wall of the cylindrical end cover, and the slider is arranged on the outer peripheral surface of the turntable . 7. The end face covering assembly according to claim 6, wherein the inner wall of the cylindrical end cover is provided with an inner ring groove whose groove bottom extends to the rear end face of the cylindrical end cover at one end near the opening. The groove bottom of the ring groove is not higher than the groove bottom of the curved groove. 8. The end face covering assembly according to claim 1 or 2 or 3 or 4, wherein a guide rod extending axially inward is provided at the center of the end plate, the curved groove is provided on the guide rod, and the turntable The sliding block is arranged on the upper part and the sleeve is slid along the curved groove. 9. The end face covering assembly according to claim 1 or 2 or 3 or 4, wherein the elastic member is a corrugated spring which is located between the turntable and the plug end face of the socket during use. 10. The end face covering assembly according to claim 2, 3 or 4, wherein the elastic member is a corrugated spring that is located between the turntable and the plug end face of the socket when in use, and the middle of the turntable on the rear side has a bellows spring. The rear turntable avoidance hole, the turntable on the front side is provided with an arc-shaped rear extension extending into the rear turntable avoidance hole, and the turntable on the rear side has an annular surface flush with the rear side of the arc-shaped rear extension, The corrugated spring is press-fitted with the rear side of the arc-shaped rear extension and the annular surface. 11 . The end face covering assembly according to claim 10 , wherein the inner wall of the escape hole of the rear turntable is provided with an arc-shaped convex edge, and the annular surface is the rear side of the arc-shaped convex edge. 12 . 12. The end face covering assembly according to claim 10, wherein a front turntable avoidance hole is provided on the turntable located on the front side at a position corresponding to the rear turntable avoidance hole, and the end plate is provided with a front turntable avoidance hole corresponding to the front and rear turntable avoidance holes. The position of the hole is provided with a connection hole for connecting with the socket. 13. The end face covering assembly according to claim 12, wherein the end plate is provided with an inner cylinder section extending backward through the front and rear turntable avoidance holes on the periphery of the connecting hole, and the inner tube section and the rear turntable avoidance holes are provided. The annular space therebetween constitutes a accommodating space for accommodating the corrugated spring. 14. The end face covering assembly of claim 13, wherein the assembly further comprises a sealing ring sandwiched between the corrugated spring and the socket when in use. 15. A socket, comprising a socket housing, characterized in that the socket housing is fixedly installed with an end plate on the front side of the plug end face, and at least one turntable is arranged between the end plate and the plug end face, and the turntable is in the screw drive structure. The end plate and the turntable are respectively provided with end plate perforations and turntable perforations. When the turntable is at the front limit position close to the end plate, the end plate perforations and the turntable perforations are staggered, and the turntable is far from When the end plate is in the rear side position, the end plate perforations and the turntable perforations are axially coincident and form a mating channel for the contacts of the adapter plugs to pass through; the ejector rods with the adapter plugs on the turntable near the end plate face backwards In the pushing part of the push, the socket further includes an elastic piece that provides a forward force for the turntable to keep it at the forward limit position. 16 . The socket according to claim 15 , wherein there are two turntables, which are arranged side by side in the insertion direction and move in the same direction in the axial direction, and rotate in the opposite direction in the circumferential direction. 17 . 17. The socket according to claim 16, wherein at least one of the turntables on the front side of the turntable is perforated as a circumferentially extending long hole, and the turntable on the rear side has a forward extension extending into the long hole, The front side of the forward extension section constitutes a push portion that is pushed back by the push rod of the adapted plug. 18 . The socket according to claim 17 , wherein the front side hole of the long hole, which is circumferentially opposite to the forward extending section of the rear side turntable, constitutes a pushing portion of the turntable. 19 . 19. The socket according to claim 15 or 16 or 17 or 18, wherein the end plate or the socket housing is provided with a cylindrical wall surrounding the outer circumference of the turntable, and the screw driving structure is arranged on the cylindrical wall. Curved grooves on one of the walls and turntable and sliders on the other. 20 . The socket according to claim 19 , wherein the curved groove is arranged on the outer peripheral surface of the turntable, and the slider is arranged on the cylinder wall. 21 . 21. The socket according to claim 19, wherein the curved groove is arranged on the wall of the cylinder, and the slider is arranged on the outer peripheral surface of the turntable. 22. The socket according to claim 21, wherein the socket comprises a cylindrical end cap with one end closed and one end open, the opening of the cylindrical end cap is opposite to the plug end face of the socket housing, and the cylindrical end The sealing plate of the closed end of the cap constitutes the end plate, and the cylindrical portion of the cylindrical end cap constitutes the cylindrical wall. 23. The socket according to claim 22, wherein the inner cylindrical wall of the cylindrical end cover is provided with an inner ring groove whose groove bottom extends to the rear end face of the cylindrical end cover at one end close to the opening. The bottom of the groove is not higher than the bottom of the curved groove. 24. The socket according to claim 15 or 16 or 17 or 18, wherein an axially extending guide rod is provided at the center of the end plate or the socket shell, the turntable is fitted with the guide rod socket, and the screw The driving structure includes a curved groove arranged on one of the outer peripheral surface of the guide rod and the inner hole surface of the turntable and a sliding block on the other. 25. The socket according to claim 15 or 16 or 17 or 18, wherein the elastic member is a corrugated spring which is located between the turntable and the plug end face during use. 26. The socket according to claim 16 or 17 or 18, wherein the elastic member is a corrugated spring which is located between the turntable and the plug end face of the socket when in use, and the middle of the turntable on the rear side has a rear turntable Avoidance hole, the turntable on the front side is provided with an arc-shaped rear extension extending into the avoidance hole of the rear turntable, and the turntable on the rear side has a ring surface flush with the rear side of the arc-shaped rear extension, and the corrugated spring Press fit with the rear side of the arc-shaped rear extension and the top of the annulus. 27. The socket according to claim 26, wherein the inner wall of the escape hole of the rear turntable is provided with an arc-shaped convex edge, and the annular surface is the rear side of the arc-shaped convex edge. 28. The socket according to claim 26, wherein the front turntable avoidance hole is provided on the turntable at the position corresponding to the rear turntable avoidance hole, and the end plate is provided with a front turntable avoidance hole corresponding to the front and rear turntable avoidance holes. The position is provided with a connection hole for connecting with the socket. 29. The socket according to claim 28, wherein the end plate is provided with an inner cylinder section extending backward through the front and rear turntable avoidance holes on the periphery of the connecting hole, and between the inner tube section and the rear turntable avoidance hole The annular space constitutes a accommodating space for accommodating the corrugated spring. 30. The socket of claim 26, further comprising a sealing ring sandwiched between the corrugated spring and the socket in use. 31. A plug, comprising a plug housing, and the front end of the plug housing is a plug-in end, wherein the plug-in end is provided with a push rod extending along the insertion direction, and the end of the push rod has a push rod. Push the top pressing part of the push portion of the turntable of the adapter socket; the adapter socket includes a socket shell, and the socket shell is fixedly installed with an end plate, an end plate and a socket shell on the front side of the plug end face of the socket shell There is at least one turntable between the plug-in end faces, and the turntable can rotate circumferentially when moving axially under the action of the screw drive structure. The end plate and the turntable are respectively provided with end plate perforations and turntable perforations. When the front limit position of the end plate is staggered, the perforation of the end plate and the perforation of the turntable are staggered, and when the turntable is in the rear side position away from the end plate, the perforation of the end plate and the perforation of the turntable are axially coincident and form an insertion channel for the contact piece of the plug to pass through; The push portion of the turntable of the socket is located on the turntable close to the end plate, and the socket further includes an elastic member that provides a forward force for the turntable to keep it at the front limit position. 32 . The plug according to claim 31 , wherein at least two contact pieces protrude from the plug-in end, and one of the contact pieces constitutes the push rod, and the contact piece has a direction in the plug-in direction. 33 . Beyond the extension of other contact pieces, the top pressure portion is located at the end of the extension. 33. The plug according to claim 32, wherein the contact member constituting the ejector rod is a ground contact member. 34. The plug according to claim 31, 32 or 33, wherein the outer surface of the top pressing portion has a wear-resistant coating.

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