CN110224263B

CN110224263B - Connector and plug and socket thereof

Info

Publication number: CN110224263B
Application number: CN201810175443.2A
Authority: CN
Inventors: 李晶; 李俊阳
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2018-03-02
Filing date: 2018-03-02
Publication date: 2021-04-06
Anticipated expiration: 2038-03-02
Also published as: CN110224263A

Abstract

The invention relates to the field of connectors, in particular to a connector and a plug and a socket thereof. The connector comprises a plug and a socket, the socket comprises a socket shell, the plug comprises a plug shell, a plug shell jacket is provided with a connecting sleeve, the connecting sleeve and the plug shell are in circumferential rotation and axial limiting fit, the connecting sleeve and the plug shell are enclosed to form a socket shell accommodating cavity for the socket shell to be inserted, the socket shell and the connecting sleeve are in threaded fit to realize the insertion and separation of the plug and the socket through rotating the connecting sleeve, the connecting sleeve jacket is provided with a locking sleeve, the locking sleeve and the connecting sleeve are in rotation stop fit to drive the connecting sleeve to rotate, and locking structures are arranged on the locking sleeve and the socket shell respectively. The plug and the socket can be inserted and separated by rotating the connecting sleeve, locking is realized by locking matching of the locking sleeve and the socket shell after the plug and the socket are inserted and combined, the operating force is small, and the problem that the operating force is large in the insertion and combination process of the existing connector is solved.

Description

Connector and plug and socket thereof

Technical Field

The invention relates to the field of connectors, in particular to a connector and a plug and a socket thereof.

Background

The fluid connector is used as an important component in a liquid cooling system, the main function of the fluid connector is to realize the quick on-off of fluid passages such as pipelines and cold plates, the debugging and the maintenance of equipment are convenient, and especially for the occasions requiring repeated disassembly and assembly and repeated debugging, the quick on-off of the fluid connector has important influence on the debugging and the maintenance efficiency of the assembly. For example, chinese patent application with application publication No. CN103557392A and application publication No. 2014.02.05 discloses a floating blind-mating fluid connector, which includes a socket and a plug mated with the socket, the plug includes a plug housing, a first flow guide hole penetrating through front and rear end faces of the plug is formed in the plug housing, a first spring and a first valve core are disposed in the first flow guide hole, the socket includes a socket housing, a third flow guide hole engaged with a front portion of the plug is formed in the socket housing, a flow guide pillar, a second valve core, and a second spring are disposed in the socket, during the insertion process of the plug and socket, the front portion of the plug is pushed into the socket, the front portion of the plug is sleeved in the third flow guide hole of the socket, the front end face of the plug pushes the second valve core to move toward the front portion of the socket, a gap of liquid fluid is formed between the second valve core and the third flow guide hole, the front end face of the flow guide pillar pushes the first valve core to move toward the rear portion, a gap for enabling the fluid to flow is formed between the first valve core and the first flow guide hole, and a sealed fluid channel is formed between the plug and the socket. Wherein the first valve core is a plug valve core, and the second valve core is a movable valve sleeve in the socket. The locking modes of the current commonly used fluid connector comprise a bayonet type locking mode, a steel ball locking mode and a clamping flap locking mode, the operating force is large in the inserting and closing process of the locking modes, the operation hand feeling is not good under the condition that the operation space is insufficient, and especially under the aerospace environment, the requirement of single-hand operation of astronauts needs to be met.

Disclosure of Invention

The invention aims to provide a connector, which aims to solve the problem that the operation force is large in the plugging process of the locking mode of the current fluid connector; in addition, the invention also aims to provide a plug and a socket of the connector.

In order to achieve the purpose, the technical scheme of the connector is as follows: the connector comprises a plug and a socket, the front ends of the plug and the socket are insertion ends, the socket comprises a socket shell, the plug comprises a plug shell, a flow guide column and a socket valve sleeve which is movably assembled on the flow guide column and is used for being in press fit with the plug shell are arranged in the socket shell, a plug valve core which is used for being in press fit with the flow guide column is movably assembled in the plug shell, a connecting sleeve is sleeved outside the plug shell and is in circumferential rotation and axial limit fit with the plug shell, the connecting sleeve and the plug shell enclose a socket shell accommodating cavity for the socket shell to be inserted into, the socket shell is in threaded fit with the connecting sleeve to realize the insertion and separation of the plug and the socket through rotating the connecting sleeve, a locking sleeve is sleeved outside the connecting sleeve and is in rotation stopping fit with the connecting sleeve to drive the connecting sleeve to rotate, and a plug locking structure which is in locking, and the socket shell is provided with a socket locking structure matched with the locking structure in a locking way.

Furthermore, the locking sleeve is sleeved on the connecting sleeve in a sliding mode along the axial direction of the plug, the plug comprises an elastic piece used for applying acting force to the locking sleeve towards the inserting and closing direction of the plug, the plug locking structure is a locking sleeve one-way ratchet arranged on the locking sleeve, and the socket locking structure is a socket one-way ratchet matched with the locking sleeve one-way ratchet; or one of the plug locking structure and the socket locking structure is a locking groove, the other one of the plug locking structure and the socket locking structure is a locking key matched with the locking groove in a locking mode, a locking key jacking surface matched with the locking key in a sliding and axial blocking mode is arranged on the locking sleeve or the socket shell and used for sliding along the circumferential direction and the locking key before the locking key enters the locking groove, and the locking groove is formed in the locking key jacking surface. Simple structure can improve the locking effect of lock sleeve and socket casing simultaneously.

Furthermore, the elastic piece is arranged between the locking sleeve and the plug shell in a top-mounted mode. The stability of the elastic piece is guaranteed, and meanwhile, the elastic piece is convenient to install.

Further, the elastic member is a wave spring.

Furthermore, the plug housing comprises a plug base body and a plug sleeve body fixed on the plug base body, the connecting sleeve is provided with a connecting sleeve flange protruding inwards, the plug base body and the plug sleeve body are surrounded to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation manner and matched with the connecting sleeve flange in a blocking manner along the axial direction of the plug, the connecting sleeve is in axial limiting matching with the plug housing through the connecting sleeve flange, the locking sleeve is provided with a locking sleeve flange which is arranged at the rear side of the connecting sleeve flange and used for being matched with the connecting sleeve flange in the blocking manner, and the elastic member is arranged between the locking sleeve flange and the plug. The structure of the connector is more compact, and the volume of the connector is reduced.

Furthermore, the plug housing comprises a plug base body and a plug sleeve body fixed on the plug base body, the connecting sleeve is provided with a connecting sleeve flange protruding inwards, the plug base body and the plug sleeve body are surrounded to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation manner and matched with the connecting sleeve flange in a blocking manner along the axial direction of the plug, and the connecting sleeve is matched with the plug housing in an axial limiting manner through the connecting sleeve flange. The installation of the lock sleeve is convenient, and the structure of the lock sleeve is simplified.

Furthermore, the plug sleeve body can be detachably fixed on the plug base body. The plug sleeve body is detachable, and the connector is convenient to maintain.

Furthermore, the locking sleeve is provided with a locking sleeve flange which is arranged at the rear side of the connecting sleeve flange and is used for being matched with the connecting sleeve flange in a stopping way. The installation of the locking sleeve is convenient.

Furthermore, be equipped with the spline of splining on one in lock sleeve and the adapter sleeve, be equipped with on the other and splining the spline groove of splining with the spline of splining, the lock sleeve realizes splining the cooperation through splining the spline and splining the keyway with the adapter sleeve.

Furthermore, the rotation stopping key groove is formed in the connecting sleeve, the rotation stopping key is arranged on the locking sleeve, and the rotation stopping key groove is formed in the rear end of the connecting sleeve and used for enabling the rotation stopping key to be inserted into the rotation stopping key groove from back to front. The locking sleeve and the socket shell are high in rotation stopping stability.

Furthermore, one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key, the other one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key groove matched with the rotation stopping piece in a rotation stopping way, and the locking sleeve and the connecting sleeve are matched in a rotation stopping way through the rotation stopping key and the rotation stopping key groove; the front end of the locking sleeve is provided with a locking key, the socket shell is provided with a locking groove matched with the locking key in a locking way, and the locking sliding stroke of the rotation stopping key and the rotation stopping key groove along the axial direction of the plug is not less than the thickness of the locking key along the axial direction of the plug; or the front end of the locking sleeve is provided with a locking groove, the socket shell is provided with a locking key matched with the locking groove in a locking way, and the rotation-stopping sliding stroke of the rotation-stopping key and the rotation-stopping key groove along the axial direction of the plug is not less than the groove depth of the locking groove; and the locking sleeve or the socket shell is provided with a locking key top pressing surface which is used for sliding along the circumferential direction and axially stopping and matching with the locking key before the locking key enters the locking groove. And the good locking effect of the locking key and the locking groove is ensured.

The technical scheme of the plug is as follows: the front end of the plug is a plug end, the plug comprises a plug shell, a plug valve core which is used for being in press fit with the flow guide column is movably assembled in the plug shell, a connecting sleeve is sleeved outside the plug shell, the connecting sleeve and the plug shell rotate in the circumferential direction and are in axial limiting fit, the connecting sleeve and the plug shell are enclosed to form a socket shell accommodating cavity for inserting the socket shell, a plug internal thread which is in threaded fit with the socket shell to realize the insertion and separation of the plug and the socket through rotating the connecting sleeve is arranged on the connecting sleeve, a locking sleeve is sleeved outside the connecting sleeve and is in rotation stopping fit with the connecting sleeve to drive the connecting sleeve to rotate, a plug locking structure which is used for being in locking fit with the socket shell after the plug and the socket are inserted in place is arranged on the locking sleeve.

Furthermore, the locking sleeve is sleeved on the connecting sleeve in a sliding mode along the axial direction of the plug, the plug comprises an elastic piece used for applying acting force to the locking sleeve towards the plug inserting direction, and the plug locking structure is a locking sleeve one-way ratchet arranged on the locking sleeve; or the plug locking structure is a locking groove which is arranged on the locking sleeve and used for being matched with a locking key on the socket shell, and a locking key top pressing surface which is used for sliding along the circumferential direction and is in axial stop matching with the locking key before the locking key enters the locking groove is arranged on the locking sleeve; or the plug locking structure is a locking key which is arranged on the locking sleeve and used for being matched with the locking groove on the socket shell.

Furthermore, the elastic piece is arranged between the locking sleeve and the plug shell in a top-mounted mode.

Further, the elastic member is a wave spring.

Furthermore, the plug housing comprises a plug base body and a plug sleeve body fixed on the plug base body, the connecting sleeve is provided with a connecting sleeve flange protruding inwards, the plug base body and the plug sleeve body are surrounded to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation manner and matched with the connecting sleeve flange in a blocking manner along the axial direction of the plug, the connecting sleeve is in axial limiting matching with the plug housing through the connecting sleeve flange, the locking sleeve is provided with a locking sleeve flange which is arranged at the rear side of the connecting sleeve flange and used for being matched with the connecting sleeve flange in the blocking manner, and the elastic member is arranged between the locking sleeve flange and the plug.

Furthermore, the plug housing comprises a plug base body and a plug sleeve body fixed on the plug base body, the connecting sleeve is provided with a connecting sleeve flange protruding inwards, the plug base body and the plug sleeve body are surrounded to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation manner and matched with the connecting sleeve flange in a blocking manner along the axial direction of the plug, and the connecting sleeve is matched with the plug housing in an axial limiting manner through the connecting sleeve flange.

Furthermore, the plug sleeve body can be detachably fixed on the plug base body.

Furthermore, the locking sleeve is provided with a locking sleeve flange which is arranged at the rear side of the connecting sleeve flange and is used for being matched with the connecting sleeve flange in a stopping way.

Furthermore, the rotation stopping key groove is formed in the connecting sleeve, the rotation stopping key is arranged on the locking sleeve, and the rotation stopping key groove is formed in the rear end of the connecting sleeve and used for enabling the rotation stopping key to be inserted into the rotation stopping key groove from back to front.

Furthermore, one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key, the other one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key groove matched with the rotation stopping piece in a rotation stopping way, and the locking sleeve and the connecting sleeve are matched in a rotation stopping way through the rotation stopping key and the rotation stopping key groove; the front end of the locking sleeve is provided with a locking groove used for being matched with a locking key on the plug shell in a locking mode, the locking sleeve is provided with a locking key jacking surface used for sliding along the circumferential direction and axially blocking and matching with the locking key before the locking key enters the locking groove, the locking groove is formed in the locking key jacking surface, the anti-rotation sliding stroke of the anti-rotation key and the anti-rotation key groove along the axial direction of the plug is not smaller than the groove depth of the locking groove, or the front end of the locking sleeve is provided with a locking key used for being matched with the locking groove on the socket shell in a locking mode, and the anti-rotation sliding stroke of the anti-rotation key and the anti-rotation key groove along the axial direction of the plug is not smaller than the thickness of the locking key along.

The technical scheme of the socket provided by the invention is as follows: the front end of the socket is a plugging end, the socket comprises a socket shell, a flow guide column and a socket valve sleeve which is movably assembled on the flow guide column and is in jacking fit with the plug shell are arranged in the socket shell, a socket locking structure which is in locking fit with the locking structure is arranged on the socket shell, and a socket external thread which is in threaded fit with the connecting sleeve to realize plugging and separation of the plug and the socket through rotating the connecting sleeve is arranged on the socket shell.

Furthermore, the socket locking structure is a socket one-way ratchet matched with the locking sleeve one-way ratchet; or the socket locking structure is a locking groove which is used for being locked and matched with a locking key on the locking sleeve, a locking key jacking surface which is used for sliding along the circumferential direction and axially and in stop fit with the locking key before the locking key enters the locking groove is arranged on the socket shell, and the locking groove is arranged on the locking key jacking surface; or a locking key used for locking and matching with the locking groove on the locking sleeve.

The invention has the beneficial effects that: the plug shell of the connector is provided with the connecting sleeve, the connecting sleeve is in threaded fit with the socket shell, the plug can be inserted into the socket by rotating the connecting sleeve in the forward direction, the plug can be separated from the socket by rotating the connecting sleeve in the reverse direction, the locking sleeve is sleeved outside the connecting sleeve in a rotation stopping manner, locking is realized by locking and matching the locking sleeve with the socket shell after the plug is inserted into the socket, and the plug and the socket are prevented from loosening.

Drawings

FIG. 1 is a schematic view of the structure of embodiment 1 of the connector of the present invention;

fig. 2 is a schematic structural view of a plug of embodiment 1 of the connector of the present invention;

fig. 3 is a schematic view of the structure of the receptacle of embodiment 1 of the connector of the present invention;

fig. 4 is a schematic view of the construction of the locking sleeve of embodiment 1 of the connector of the present invention;

fig. 5 is a schematic structural view of a connecting sleeve of embodiment 1 of the connector of the present invention;

fig. 6 is a schematic structural diagram of the connection sleeve and the socket shell after the connection of the plug and the socket of embodiment 1 of the connector of the present invention is completed;

fig. 7 is a schematic structural view of the front housing of the receptacle housing of embodiment 1 of the connector of the present invention;

fig. 8 is a schematic structural view of a rear housing of a receptacle housing of embodiment 1 of the connector of the present invention;

fig. 9 is a state view before the locking key and the locking groove are locked in the process of inserting the plug and the socket of embodiment 1 of the connector of the present invention;

fig. 10 is a state view after the locking key and the locking groove are locked in the process of inserting the plug and the socket of embodiment 1 of the connector of the present invention;

fig. 11 is a schematic view of a plug and socket separation process of embodiment 1 of the connector of the present invention;

fig. 12 is a schematic view showing a state in which the plug and the receptacle of embodiment 1 of the connector of the present invention are separated;

in the figure: a plug 1; a plug base body 11; a backstop surface 111; a plug valve core 12; a connecting sleeve 13; plug internal threads 131; a connecting sleeve flange 132; a flange mounting groove 133; a rotation-stopping key groove 134; a locking sleeve 14; a locking sleeve flange 141; a rotation stop key 142; a locking groove 143; a plug housing body 15; an annular projection 151; a receptacle housing receiving cavity 16; a ripple spring 17; a plug spring 18; a socket 2; a socket housing 21; a locking key 211; a front housing 212; a rear housing 213; a guide column 22; a socket valve housing 23; a socket spring 24.

Detailed Description

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

As shown in fig. 1 to 12, the connector of embodiment 1 of the present invention includes a plug 1 and a socket 2, and the front ends of the plug 1 and the socket 2 are both plug ends. The connector in this embodiment is a fluid connector, such as a pressurized plugging and unplugging, self-discharging pressure fluid connector, and in other embodiments, the connector can be popularized to other connecting and disconnecting mechanisms similar to the fluid connector, and the tail installation interface can be changed as required.

Socket 2 includes socket housing 21 and water conservancy diversion post 22, socket housing 21's grafting end is equipped with the socket external screw thread, plug 1 includes plug seat body 11, plug case 12 and can be for plug seat body 11 pivoted adapter sleeve 13, adapter sleeve 13 external spline cover is equipped with lock sleeve 14, be equipped with on the adapter sleeve 13 be used for with 1 screw-thread fit's of plug internal thread 131, releasable connection has on the plug seat body 11 be used for with the plug cover body 15 of socket housing 21 sliding seal complex, 15 threaded connection of plug cover body is on plug seat body 11, wherein plug seat body constitutes the plug housing of plug jointly with the plug cover body. The socket shell is in threaded fit with the connecting sleeve so that the plug is inserted into the socket by rotating the connecting sleeve in the forward direction and the plug is separated from the socket by rotating the connecting sleeve in the reverse direction.

The plug housing 15 and the plug housing 13 enclose a socket housing accommodating cavity 16 into which the socket housing 21 is inserted, the connecting sleeve 13 is provided with an inwardly protruding connecting sleeve flange 132, and the plug housing 11 and the plug housing 15 enclose a flange mounting groove 133 which is in circumferential rotation fit with the connecting sleeve flange 132 and in blocking fit along the axial direction of the plug 1, so that the connecting sleeve and the plug housing are in circumferential rotation and axial limiting fit. The plug internal thread and the socket external thread are trapezoidal transmission threads, so that the thread pitch is large, and the quick connection is convenient.

As shown in fig. 1, the plug housing body 15 is provided with an annular protrusion 151 at the periphery thereof, and the top surface of the annular protrusion 151 is in positioning fit with the inner peripheral surface of the connecting sleeve to ensure the stability of the connecting sleeve. After the plug housing body 15 and the plug housing body 11 are assembled, the annular protrusion 151 on the plug housing body 15 and the plug housing body 11 enclose the flange mounting groove 133. The locking sleeve 14 is provided with a locking sleeve flange 141 which is arranged at the rear side of the connecting sleeve flange 132 and is used for being matched with the connecting sleeve flange 132 in a blocking manner, the rear side of the locking sleeve flange 141 is provided with a corrugated spring 17 which is jacked in front of the locking sleeve flange 141 and the plug seat body 11, the corrugated spring 17 exerts acting force towards the plugging direction of the plug 1 on the locking sleeve 14, and the corrugated spring 17 in the embodiment forms an elastic part which is jacked between the plug seat body 11 and the locking sleeve 14. In other embodiments, the elastic member may be other elastic members such as a coil spring, and the corrugated spring 17 in this embodiment facilitates the rotation of the locking sleeve relative to the plug housing as compared to a coil spring. In order to ensure the stability of the sliding process of the locking sleeve 14 back and forth, in the present embodiment, the inner peripheral surface of the locking sleeve flange 141 is in sliding fit with the outer peripheral surface of the plug housing 11. The portion of the inner peripheral surface of the lock sleeve 14 on the rear side of the lock sleeve flange 141 is also in sliding fit with the outer peripheral surface of the plug housing 11. In order to prevent the bellows spring 17 from being over-compressed, the plug seat 11 of the present embodiment further has a stop surface 111 engaged with the rear end surface of the locking sleeve 14.

As shown in fig. 4, the locking sleeve 14 in this embodiment is provided with a rotation stop key 142, the connecting sleeve 13 is provided with a rotation stop key groove 134 which is in rotation stop fit with the rotation stop key 142, the rotation stop key groove 134 is provided at the rear end of the connecting sleeve 13 so that the rotation stop key 142 can be inserted into the rotation stop key groove 134 from the rear to the front, and the locking sleeve 14 and the connecting sleeve 13 are in rotation stop fit through the rotation stop key 142 and the rotation stop key groove 134.

A locking groove 143 is formed in the front end face of the locking sleeve 14, and a locking key 211 which is in locking fit with the locking groove 143 is formed in the socket housing 21; the locking key is integrally arranged on the socket shell, and in other embodiments, the locking key can be assembled on the socket shell in an interference fit manner; in other embodiments, the front end of the locking sleeve 14 may also be provided with a locking key 211, and the socket housing 21 is provided with a locking groove 143 that is locked and matched with the locking key 211. The front end surface of the lock sleeve 14 is a lock key top surface that is brought into sliding, axially retaining engagement with the lock key 211 in the circumferential direction to compress the bellows spring 17 before the lock key 211 enters the lock groove 143.

In the process that the connecting sleeve 13 is screwed with the socket shell 21, before the locking groove 143 on the locking sleeve 14 is locked with the locking key 211, the front end face of the locking sleeve 14 abuts against the locking key 211 on the socket shell 21, at this time, along with the rotation of the locking sleeve 14, the front end face of the locking sleeve 14 slides relative to the locking key 211, the plug 1 and the socket 2 are continuously inserted, the locking sleeve 14 continues to rotate, the connecting sleeve 13 and the socket shell 21 continue to move relative to each other along the axial direction of the plug 1, but at this time, due to the limiting effect of the locking key 211 on the socket shell 21, the locking sleeve 14 cannot move along with the connecting sleeve 13, the locking sleeve 14 moves backwards relative to the connecting sleeve 13, in order to ensure good locking effect of the locking key 211 and the locking groove 143, the rotation stopping sliding stroke of the rotation stopping key 142 and the rotation stopping key groove 134 along the axial direction of the plug 1 is not less than the groove depth of the locking groove 143, and here, the rotation stopping sliding stroke of the rotation stopping key 142 and the rotation key groove 134 means that the In the case of the maximum relative sliding travel allowed in the axial direction of the plug 1.

Because the end face of the front end of the locking sleeve, namely the top pressing face of the locking key, is a plane, abnormal sound cannot occur in the sliding process of the locking key and the top pressing face of the locking key, and the operating force is smaller.

In order to improve the stability of the rotation stopping fit between the locking sleeve 14 and the connecting sleeve 13, two rotation stopping keys 142 and two rotation stopping key grooves 134 are provided in this embodiment and are arranged in pairs, and the two pairs of rotation stopping keys 142 and two pairs of rotation stopping key grooves 134 are arranged oppositely along the radial direction of the plug 1. Two pairs of locking keys 211 and locking grooves 143 are also provided to improve the locking effect of the locking sleeve 14 and the socket housing 21.

As shown in fig. 1, the plug valve core 12 in this embodiment is movably assembled in the plug sleeve body 15, before the plug is inserted into the socket, the plug valve core is in sealing fit with the plug sleeve body, and the rear side of the plug valve core is provided with a plug spring 18 which is jacked between the plug base body 11 and the plug valve core 12. The diversion column 22 is disposed in the socket housing 21, and a sealing ring is disposed between the socket housing 21 and the plug bush body 15 in this embodiment, so as to ensure the sealing between the socket housing 21 and the plug bush body 15.

The periphery of the flow guide column 22 is sleeved with a socket valve sleeve 23 which is used for being in abutting fit with the front end face of the plug sleeve body, before the plug is plugged into the socket, the inner peripheral face and the outer peripheral face of the socket valve sleeve 23 are respectively in sealing fit with the flow guide column 22 and the socket shell, and the rear side of the socket valve sleeve 23 is abutted with a socket spring 24 which applies acting force towards the plugging direction of the socket 2 to the socket valve sleeve 23.

In the assembling process of the plug 1, the connecting sleeve 13 and the locking sleeve 14 are sleeved on the plug sleeve body 15, then the plug sleeve body 15 is assembled on the plug base body 11 in a threaded mode, a special positioning piece is not needed in the assembling process, the connecting sleeve 13 is positioned through a flange mounting groove 133 formed by the plug base body 11 and the plug sleeve body 15, and the stability of the connecting sleeve 13 can be guaranteed.

The receptacle housing 21 in this embodiment includes a front housing 212 and a rear housing 213, wherein the receptacle 2 is externally threaded on the front housing 212 and the locking key 211 is provided on the rear housing 213, and in this embodiment the front housing 212 is threadedly coupled to the rear housing 213.

In the process of oppositely inserting the plug 1 and the socket 2 in the embodiment, the plug valve core is in contact with the flow guiding column 22 of the socket 2, the plug sleeve body 15 is abutted to the socket valve sleeve 23 of the socket 2, at the moment, the connecting sleeve 13 is driven to rotate by rotating the locking sleeve 14, in the rotating process of the connecting sleeve 13, the plug internal thread 131 on the connecting sleeve 13 is meshed with the socket 2 external thread on the socket shell 21, and the socket shell is in threaded fit with the connecting sleeve so as to realize the insertion and separation of the plug and the socket by rotating the connecting sleeve. With the rotation of the locking sleeve 14, the connecting sleeve 13 continues to rotate, the connecting sleeve 13 and the socket housing 21 relatively move along the axial direction of the plug 1, at this time, the flow guide column 22 of the socket 2 presses the plug valve core, the plug valve core moves towards the inside of the plug sleeve body 15, the plug sleeve body 15 presses the socket valve sleeve 23 to move relative to the inside of the socket housing 21 until the fluid channel in the plug sleeve body 15 is communicated with the fluid channel in the socket housing 21, and the plug 1 is communicated with the socket 2. At this time, the locking sleeve 14 continues to be rotated, the front end of the locking sleeve 14 presses against the locking key 211 of the base body of the socket 2, at this time, a certain distance is left between the locking groove 143 on the locking sleeve 14 and the locking key 211 in the circumferential direction of the locking sleeve 14, the locking key 211 and the front end surface of the locking sleeve circumferentially slide and axially stop-fit, the locking sleeve 14 continues to be rotated, the locking key 211 and the front end surface of the locking sleeve 14 relatively slide, the locking groove 143 on the locking sleeve 14 moves towards the locking key 211, at this time, due to the pressing action of the locking sleeve 14 and the locking key 211, the locking sleeve 14 cannot synchronously move with the connecting sleeve 13, the locking sleeve 14 retreats under the pressing action of the locking key 211, the corrugated spring 17 is compressed until the locking groove 143 and the locking key 211 are aligned in the axial direction of the plug 1, under the elastic force of the corrugated spring 17, the locking sleeve 14 moves forwards along the axial direction of the plug 1, the locking groove 143 and the locking key 211 lock-fit in the circumferential direction of, the locking sleeve 14 cannot rotate to complete the insertion of the plug 1 and the socket 2, and at the moment, because the locking sleeve 14 cannot rotate, the connecting sleeve 13 cannot rotate relative to the socket shell 21, the plug 1 and the socket 2 cannot be loosened in a vibration environment.

In the process of separating the plug 1 from the socket 2, the locking sleeve 14 is pulled backwards to unlock the locking groove 143 on the locking sleeve 14 and the locking key 211, and then the locking sleeve 14 is rotated reversely to drive the connecting sleeve 13 to move relative to the socket housing 21, which is the reverse process of the plug 1 and the socket 2, and details are not repeated.

The above specific embodiment 1 is the best mode of the connector of the present invention, and in other embodiments, the corresponding structure may be adjusted or simplified as needed:

the embodiment 2 of the connector of the invention comprises a plug and a socket, the front ends of the plug and the socket are insertion ends, the socket comprises a socket shell, the plug comprises a plug shell, a flow guide column and a socket valve sleeve movably assembled on the flow guide column and used for being in press fit with the plug shell are arranged in the socket shell, a plug valve core movably assembled in the plug shell and used for being in press fit with the flow guide column is sleeved in the plug shell, the plug shell is sleeved with a connecting sleeve, the connecting sleeve and the plug shell are in circumferential rotation and axial limit fit, the connecting sleeve and the plug shell define a socket shell accommodating cavity for the socket shell to be inserted into, the socket shell is in threaded fit with the connecting sleeve to realize the insertion and separation of the plug and the socket through rotating the connecting sleeve, the connecting sleeve is sleeved with a locking sleeve, the locking sleeve is in rotation stopping fit with the connecting sleeve to drive the connecting sleeve to rotate, and the locking sleeve is, and the socket shell is provided with a socket locking structure matched with the locking structure in a locking way. Besides the form of embodiment 1, the locking mode can also adopt hook locking and elastic claw locking. The locking sleeve can be directly fixed on the connecting sleeve.

As a further optimization of the specific embodiment 2, in order to improve the locking effect of the locking sleeve and the socket housing, the locking sleeve is axially slidably sleeved on the connecting sleeve along the plug, the plug includes an elastic member for applying an acting force to the locking sleeve in a direction toward the plug insertion direction, the plug locking structure is a locking sleeve one-way ratchet arranged on the locking sleeve, and the socket locking structure is a socket one-way ratchet matched with the locking sleeve one-way ratchet; in this embodiment, one of the plug locking structure and the socket locking structure may be a locking groove, and the other one of the plug locking structure and the socket locking structure is a locking key locked and engaged with the locking groove, a locking key pressing surface for being circumferentially slid and axially locked and engaged with the locking key before the locking key enters the locking groove is disposed on the locking sleeve or the socket housing, and the locking groove is disposed on the locking key pressing surface. The locking and unlocking of the locking sleeve are facilitated, the structure is simple, and the processing is convenient. Except for the form of the specific embodiment 1, in other embodiments, the locking key can be movably assembled on the locking sleeve along the axial direction of the locking sleeve, the socket shell is provided with a locking groove, a compression spring is arranged between the locking key and the locking sleeve, before the locking key enters the locking groove on the socket shell, the locking key retracts into the locking sleeve under the action of a locking key top pressing surface on the socket shell until the positions of the locking key and the locking groove are axially overlapped, and the locking key rebounds into the locking groove under the action of the compression spring to realize the locking of the plug and the socket. In other embodiments, the socket housing may also be provided with a locking groove, and at this time, the socket housing is provided with a locking key top pressing surface, and the locking key is disposed on the locking sleeve.

Embodiment 4 of the connector of the present invention, as a further optimization of embodiment 3, in order to ensure the stability of the elastic member and facilitate the installation of the elastic member, the elastic member is installed between the locking sleeve and the plug housing. In other embodiments, the elastic member may be mounted between the locking sleeve and the connecting sleeve.

Embodiment 5 of the connector of the present invention, as a further preferable embodiment to embodiment 4, the elastic member is a wave spring. In other embodiments, a coil spring may be used.

As a further optimization of the specific embodiment 4 or 5, in order to make the structure of the connector more compact, the plug housing of the embodiment 6 of the invention includes a plug base and a plug housing fixed on the plug base, the connecting sleeve is provided with a connecting sleeve flange protruding inwards, the plug base and the plug housing enclose a flange mounting groove rotationally matched with the connecting sleeve flange along the circumferential direction and in stop fit along the axial direction of the plug, the connecting sleeve is in axial limit fit with the plug housing through the connecting sleeve flange, the locking sleeve is provided with a locking sleeve flange located at the rear side of the connecting sleeve flange and used for stop fit with the connecting sleeve flange, and the elastic member is jacked between the locking sleeve flange and the plug base. In other embodiments, the elastic element can be arranged on the rear end surface of the locking sleeve in a jacking mode.

As a further optimization of any one of embodiments 2 to 5, in an embodiment 7 of the connector of the present invention, in order to facilitate installation of the locking sleeve and simplify the structure of the locking sleeve, the plug housing includes a plug housing body and a plug housing body fixed to the plug housing body, the connecting sleeve is provided with an inwardly protruding connecting sleeve flange, the plug housing body and the plug housing body enclose a flange mounting groove which is in circumferential rotation fit with the connecting sleeve flange and in stop fit with the plug along an axial direction of the plug, and the connecting sleeve is in axial limit fit with the plug housing body through the connecting sleeve flange. In other embodiments, a retaining ring can be used to fix the connecting sleeve.

As a further optimization of embodiment 7, embodiment 8 of the connector of the present invention, the plug housing is detachably fixed to the plug housing body. In other embodiments, the plug housing and the plug housing body may be an integral structure or fixed by welding.

As a further optimization of embodiment 7, embodiment 9 of the connector of the present invention provides that a locking sleeve flange which is located at the rear side of the connecting sleeve flange and is used for being in stop fit with the connecting sleeve flange is arranged on the locking sleeve, so that the locking sleeve can be conveniently installed. In other embodiments, the locking sleeve is provided with a stop pin to realize stop matching with the connecting sleeve.

As a further optimization of any one of embodiments 2 to 5, in embodiment 10 of the connector of the present invention, one of the locking sleeve and the connecting sleeve is provided with a rotation stop key, and the other is provided with a rotation stop key groove in rotation stop fit with the rotation stop key, and the locking sleeve and the connecting sleeve are in rotation stop fit through the rotation stop key and the rotation stop key groove. In other embodiments, a movable groove extending along the axial direction of the plug may be formed in the connection sleeve, and a stop pin engaged with the movable groove for stopping rotation is provided on the connection sleeve.

As a further optimization of embodiment 10, in embodiment 11 of the connector of the present invention, in order to improve the rotation stopping stability of the locking sleeve and the socket housing, the rotation stopping key groove is provided on the connecting sleeve, the rotation stopping key is provided on the locking sleeve, and the rotation stopping key groove is provided at the rear end of the connecting sleeve for the rotation stopping key to be inserted into the rotation stopping key groove from the rear to the front.

As a further optimization of any one of the specific embodiments 2 to 5, specific embodiment 12 of the connector of the present invention is configured such that one of the locking sleeve and the connecting sleeve is provided with a rotation stop key, and the other one of the locking sleeve and the connecting sleeve is provided with a rotation stop key groove that is in rotation stop fit with the rotation stop member, and the locking sleeve and the connecting sleeve are in rotation stop fit through the rotation stop key and the rotation stop key groove; the front end of the locking sleeve is provided with a locking key, the socket shell is provided with a locking groove matched with the locking key in a locking way, and the locking sliding stroke of the rotation stopping key and the rotation stopping key groove along the axial direction of the plug is not less than the thickness of the locking key along the axial direction of the plug; in this embodiment, a locking groove may be formed at the front end of the locking sleeve, a locking key that is in locking fit with the locking groove is formed on the socket housing, and the anti-rotation sliding stroke of the anti-rotation key and the anti-rotation key groove along the axial direction of the plug is not less than the groove depth of the locking groove; and the locking sleeve or the socket shell is provided with a locking key top pressing surface which is used for sliding along the circumferential direction and axially stopping and matching with the locking key before the locking key enters the locking groove. And the good locking effect of the locking key and the locking groove is ensured.

In the specific embodiment of the plug of the present invention, the structure of the plug in the embodiment is the same as that of any one of the plugs described in the specific embodiments 1 to 12 of the connector, and details are not described again.

In the embodiment of the socket of the present invention, the structure of the socket in this embodiment is the same as that of any one of the sockets in embodiments 1 to 12 of the connector described above, and details are not repeated.

Claims

1. The connector, including plug and socket, the front end of plug and socket is grafting end, and the socket includes socket shell, and the plug includes plug housing, is equipped with water conservancy diversion post and movable assembly in socket shell and is used for on the water conservancy diversion post with plug housing roof pressure complex socket valve barrel, the movable assembly is equipped with in the plug housing be used for with water conservancy diversion post roof pressure complex plug case, its characterized in that: the plug shell is sleeved with a connecting sleeve, the connecting sleeve and the plug shell rotate in the circumferential direction and are in limited fit in the axial direction, the connecting sleeve and the plug shell enclose a socket shell accommodating cavity into which the socket shell is inserted, the socket shell is in threaded fit with the connecting sleeve so that the plug and the socket can be inserted and separated by rotating the connecting sleeve, the connecting sleeve is sleeved with a locking sleeve, the locking sleeve and the connecting sleeve are in rotation stopping fit so as to drive the connecting sleeve to rotate, the locking sleeve is provided with a plug locking structure which is in locking fit with the socket shell after the plug and the socket are inserted in place, and the socket shell is provided with a socket locking structure which; one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key, the other one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key groove matched with the rotation stopping piece in a rotation stopping way, and the locking sleeve and the connecting sleeve are matched in a rotation stopping way through the rotation stopping key and the rotation stopping key groove; the front end of the locking sleeve is provided with a locking key, the socket shell is provided with a locking groove matched with the locking key in a locking way, and the locking sliding stroke of the rotation stopping key and the rotation stopping key groove along the axial direction of the plug is not less than the thickness of the locking key along the axial direction of the plug; or the front end of the locking sleeve is provided with a locking groove, the socket shell is provided with a locking key matched with the locking groove in a locking way, and the rotation-stopping sliding stroke of the rotation-stopping key and the rotation-stopping key groove along the axial direction of the plug is not less than the groove depth of the locking groove; and the locking sleeve or the socket shell is provided with a locking key top pressing surface which is used for sliding along the circumferential direction and axially stopping and matching with the locking key before the locking key enters the locking groove.

2. The connector of claim 1, wherein: the locking sleeve is sleeved on the connecting sleeve in a sliding mode along the axial direction of the plug, the plug comprises an elastic piece used for applying acting force to the locking sleeve towards the insertion direction of the plug, the plug locking structure is a locking sleeve one-way ratchet arranged on the locking sleeve, and the socket locking structure is a socket one-way ratchet matched with the locking sleeve one-way ratchet; or one of the plug locking structure and the socket locking structure is a locking groove, the other one of the plug locking structure and the socket locking structure is a locking key matched with the locking groove in a locking mode, a locking key jacking surface matched with the locking key in a sliding and axial blocking mode is arranged on the locking sleeve or the socket shell and used for sliding along the circumferential direction and the locking key before the locking key enters the locking groove, and the locking groove is formed in the locking key jacking surface.

3. The connector of claim 2, wherein: the elastic piece is arranged between the locking sleeve and the plug shell in a jacking mode.

4. The connector of claim 3, wherein: the elastic piece is a corrugated spring.

5. The connector according to claim 3 or 4, wherein: the plug shell comprises a plug seat body and a plug sleeve body fixed on the plug seat body, wherein a connecting sleeve flange protruding inwards is arranged on the connecting sleeve, the plug seat body and the plug sleeve body are enclosed to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation mode and matched with the connecting sleeve flange in a blocking mode along the axial direction of the plug, the connecting sleeve is matched with the plug shell in an axial limiting mode through the connecting sleeve flange, a locking sleeve flange which is located on the rear side of the connecting sleeve flange and used for being matched with the connecting sleeve flange in the blocking mode is arranged on the locking sleeve, and the elastic piece is arranged between the locking.

6. The connector according to any one of claims 1 to 4, wherein: the plug shell comprises a plug seat body and a plug sleeve body fixed on the plug seat body, wherein a connecting sleeve flange protruding inwards is arranged on the connecting sleeve, the plug seat body and the plug sleeve body are enclosed to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation mode and in a stop fit mode along the axial direction of the plug, and the connecting sleeve is in axial limit fit with the plug shell through the connecting sleeve flange.

7. The connector of claim 6, wherein: the plug sleeve body is detachably fixed on the plug base body.

8. The connector of claim 6, wherein: and the locking sleeve is provided with a locking sleeve flange which is positioned at the rear side of the connecting sleeve flange and is used for being matched with the connecting sleeve flange in a stopping way.

9. The connector according to any one of claims 1 to 4, wherein: one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key, the other one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key groove matched with the rotation stopping key in a rotation stopping way, and the locking sleeve and the connecting sleeve are matched in a rotation stopping way through the rotation stopping key and the rotation stopping key groove.

10. The connector of claim 9, wherein: the rotation stopping key groove is formed in the connecting sleeve, the rotation stopping key is arranged on the locking sleeve, and the rotation stopping key groove is formed in the rear end of the connecting sleeve and used for enabling the rotation stopping key to be inserted into the rotation stopping key groove from back to front.

11. The plug, the front end of plug is the grafting end, and the plug includes plug housing, and the activity is equipped with in the plug housing to be used for with water conservancy diversion post roof pressure complex plug case, its characterized in that: the plug shell is sleeved with a connecting sleeve, the connecting sleeve and the plug shell are in circumferential rotation and axial limiting fit, the connecting sleeve and the plug shell are enclosed to form a socket shell accommodating cavity for the socket shell to be inserted into, plug internal threads which are in threaded fit with the socket shell to realize the insertion and separation of the plug and the socket by rotating the connecting sleeve are arranged on the connecting sleeve, a locking sleeve is sleeved outside the connecting sleeve, the locking sleeve and the connecting sleeve are in rotation stopping fit to drive the connecting sleeve to rotate, a plug locking structure which is used for being in locking fit with the socket shell after the plug and the socket are inserted in place is arranged on the locking sleeve, and a socket locking structure which is in locking fit with the; one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key, the other one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key groove matched with the rotation stopping piece in a rotation stopping way, and the locking sleeve and the connecting sleeve are matched in a rotation stopping way through the rotation stopping key and the rotation stopping key groove; the front end of the locking sleeve is provided with a locking groove used for being matched with a locking key on the plug shell in a locking mode, the locking sleeve is provided with a locking key jacking surface used for sliding along the circumferential direction and axially blocking and matching with the locking key before the locking key enters the locking groove, the locking groove is formed in the locking key jacking surface, the anti-rotation sliding stroke of the anti-rotation key and the anti-rotation key groove along the axial direction of the plug is not smaller than the groove depth of the locking groove, or the front end of the locking sleeve is provided with a locking key used for being matched with the locking groove on the socket shell in a locking mode, and the anti-rotation sliding stroke of the anti-rotation key and the anti-rotation key groove along the axial direction of the plug is not smaller than the thickness of the locking key along.

12. The plug of claim 11, wherein: the locking sleeve is sleeved on the connecting sleeve in a sliding mode along the axial direction of the plug, the plug comprises an elastic piece used for applying acting force to the locking sleeve towards the plug inserting direction, and the plug locking structure is a locking sleeve one-way ratchet arranged on the locking sleeve; or the plug locking structure is a locking groove which is arranged on the locking sleeve and used for being matched with a locking key on the socket shell, and a locking key top pressing surface which is used for sliding along the circumferential direction and is in axial stop matching with the locking key before the locking key enters the locking groove is arranged on the locking sleeve; or the plug locking structure is a locking key which is arranged on the locking sleeve and used for being matched with the locking groove on the socket shell.

13. The plug of claim 12, wherein: the elastic piece is arranged between the locking sleeve and the plug shell in a jacking mode.

14. The plug of claim 13, wherein: the elastic piece is a corrugated spring.

15. The plug of claim 13 or 14, wherein: the plug shell comprises a plug seat body and a plug sleeve body fixed on the plug seat body, wherein a connecting sleeve flange protruding inwards is arranged on the connecting sleeve, the plug seat body and the plug sleeve body are enclosed to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation mode and matched with the connecting sleeve flange in a blocking mode along the axial direction of the plug, the connecting sleeve is matched with the plug shell in an axial limiting mode through the connecting sleeve flange, a locking sleeve flange which is located on the rear side of the connecting sleeve flange and used for being matched with the connecting sleeve flange in the blocking mode is arranged on the locking sleeve, and the elastic piece is arranged between the locking.

16. The plug according to any one of claims 11 to 14, wherein: the plug shell comprises a plug seat body and a plug sleeve body fixed on the plug seat body, wherein a connecting sleeve flange protruding inwards is arranged on the connecting sleeve, the plug seat body and the plug sleeve body are enclosed to form a flange mounting groove which is matched with the connecting sleeve flange in a circumferential rotation mode and in a stop fit mode along the axial direction of the plug, and the connecting sleeve is in axial limit fit with the plug shell through the connecting sleeve flange.

17. The plug of claim 16, wherein: the plug sleeve body is detachably fixed on the plug base body.

18. The plug of claim 16, wherein: and the locking sleeve is provided with a locking sleeve flange which is positioned at the rear side of the connecting sleeve flange and is used for being matched with the connecting sleeve flange in a stopping way.

19. The plug according to any one of claims 11 to 14, wherein: one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key, the other one of the locking sleeve and the connecting sleeve is provided with a rotation stopping key groove matched with the rotation stopping key in a rotation stopping way, and the locking sleeve and the connecting sleeve are matched in a rotation stopping way through the rotation stopping key and the rotation stopping key groove.

20. The plug of claim 19, wherein: the rotation stopping key groove is formed in the connecting sleeve, the rotation stopping key is arranged on the locking sleeve, and the rotation stopping key groove is formed in the rear end of the connecting sleeve and used for enabling the rotation stopping key to be inserted into the rotation stopping key groove from back to front.