CN110220052B

CN110220052B - Plug, socket and connector

Info

Publication number: CN110220052B
Application number: CN201810175793.9A
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: 2020-09-18
Anticipated expiration: 2038-03-02
Also published as: CN110220052A

Abstract

The invention relates to the field of connectors, in particular to a plug, a socket and a connector. The connector comprises a plug and a socket, the socket comprises a socket shell, the plug shell of the connector is provided with a connecting sleeve, the connecting sleeve is in threaded fit with the socket shell, the outer rotation-stopping sleeve of the connecting sleeve is provided with a locking sleeve, one of the locking sleeve and the socket shell is provided with a locking key, the other one of the locking sleeve and the socket shell is provided with a locking groove for the locking key to enter so as to be in locking fit with the locking key, the locking sleeve or the socket shell is provided with a locking key top pressing surface which is used for being in circumferential sliding and axial blocking fit with the locking key before the locking key enters the locking groove, the locking groove is arranged on the locking key top pressing surface, locking is realized through locking fit of the locking sleeve and the socket shell after the plug is plugged with the socket, the plug and the socket are prevented from being loosened, the locking key is matched and locked with the locking groove, the operating force is small, the noise is low, and, and poor handling feeling.

Description

Plug, socket and connector

Technical Field

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

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. 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.

Chinese patent with grant publication number CN102230542B and grant publication date 2013.06.05 discloses a fixed core joint valve and a self-sealing joint assembly using the same, the fixed core joint valve comprises a valve body and a valve seat assembled at the rear end of the valve body, the valve body is in running fit with the valve seat, the valve seat is in running fit with the valve body, the front end of the valve body is provided with a thread section for screwing with the valve body of the adapter valve, the outside of the valve body is sleeved with a locking sleeve, the locking sleeve is coaxially and movably sleeved on the valve body along the front and rear direction of the valve body and is in running fit with the valve body, a retaining ring is arranged between the valve body and the valve seat, and the retaining ring realizes the positioning fit of the fixed core joint valve and the self-sealing joint assembly in. The rear end of the locking sleeve is sleeved on the valve body from the front end of the valve body and then is matched with the rotation stopping guide groove on the valve body through a guide pin to realize the movable, guiding and rotation stopping matching between the front end of the locking sleeve and the valve body, a locking sleeve return spring is arranged between supporting surfaces of the locking sleeve and the valve body in a jacking mode, and the front end of the locking sleeve is provided with a one-way ratchet which is used for being embedded with teeth on the adapter joint valve after the fixed core joint valve is in butt joint with the adapter joint valve to prevent the fixed core. When the locking sleeve is used, when the fixed core joint valve and the movable core joint valve are required to be connected, the locking sleeve is rotated to enable the first valve body of the fixed core joint valve and the second valve body of the movable core joint valve to be in threaded connection, and the locking sleeve is embedded under the action of the third spring through the one-way ratchet after the two valve bodies are locked in place, so that the movable core joint valve and the fixed core joint valve are prevented from loosening due to factors such as vibration. When the two connector valves need to be separated, the locking sleeve can be pulled backwards to separate the one-way ratchets on the two connector valves, and then the first valve body is rotated to separate the two connector valves. The two joint valves are fluid connectors, wherein the fixed core joint valve is a fluid plug, the movable core joint valve is a fluid socket, a valve body and a valve seat of the movable core joint valve jointly form a socket shell, the valve seat of the fixed core joint valve forms a plug shell, and the valve body of the fixed core joint valve forms a connecting sleeve of the plug. In the process of locking after the insertion of the connector, the noise generated in the process of matching the plug and the one-way ratchet on the socket is large, and the operation hand feeling is poor.

Disclosure of Invention

The invention aims to provide a connector, which aims to solve the problems of high noise and poor operation hand feeling in the locking process 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 plug ends, the socket comprises a socket shell, the plug end of the socket shell is provided with a socket external thread, the plug comprises a 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 is provided with a plug internal thread matched with the socket external thread, 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, the connecting sleeve is sleeved with a locking sleeve, the locking sleeve and the connecting sleeve are in circumferential rotation stopping and axial sliding fit, the plug is provided with an elastic piece for applying acting force towards the plug insertion direction on the locking sleeve, one of the locking sleeve and the socket shell is provided with a locking key, and the other one is provided with a locking groove for the, the locking sleeve or the socket shell is provided with a locking key jacking 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 locking groove is formed in the locking key jacking surface.

Furthermore, the locking key is a fixed key which is matched with the top pressing surface of the locking key in a sliding and axial stop manner along the circumferential direction to compress the elastic part before the locking key enters the locking groove, and the fixed key is simple in structure and convenient to install.

Furthermore, the locking groove is arranged on the locking sleeve, and the locking key is arranged on the socket shell. The locking sleeve is convenient to process.

Further, the locking grooves are arranged in pairs, and the same pair of locking grooves are arranged along the radial direction of the locking sleeve. The stability of the plug and the socket after locking is improved.

Furthermore, the locking groove is formed in the end face of the locking sleeve, and the end face of the locking sleeve forms the top pressing face of the locking key. The structure of the plug is simplified.

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

Further, the elastic member is a wave spring.

Furthermore, the connector is a fluid connector, a flow guide column and a socket valve sleeve which is movably assembled on the flow guide column and is used for being in jacking fit with the plug shell are arranged in the socket shell, and a plug valve core which is used for being in jacking fit with the flow guide column is movably assembled in the plug shell. Simplifying the construction of the fluid connector.

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 installation is convenient, improves the locking sleeve simultaneously and the stability of splining of socket casing.

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 which is matched with the rotation stopping key in a rotation stopping way, the locking sleeve and the connecting sleeve realize the rotation stopping matching through the rotation stopping key and the rotation stopping key groove, the locking key is arranged on the locking sleeve, the locking groove is arranged on the socket shell, 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 thickness of the locking key along the axial direction of the plug; or the locking groove is arranged on the locking sleeve, the locking key is arranged on the socket shell, 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 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 plugging end, the plug comprises a plug shell, a connecting sleeve which is used for being matched with the plug shell in a circumferential rotation and axial limiting mode is sleeved outside the plug shell, a plug internal thread which is used for being matched with a socket external thread and is used for realizing plugging 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, the locking sleeve is matched with the connecting sleeve in a circumferential rotation stopping and axial sliding mode, an elastic part which is used for applying acting force towards the plugging direction of the plug to the locking sleeve is arranged on the plug, and a locking key which is used for being matched with a locking groove on the; or the locking sleeve is provided with a locking groove for the locking key on the socket shell to enter and be in locking fit with the locking key, the locking sleeve is also provided with a locking key jacking surface which is used for being in sliding and axial blocking fit with the locking key along the circumferential direction before the locking key enters the locking groove, and the locking groove is arranged on the locking key jacking surface.

Furthermore, the locking sleeve is provided with a locking groove for allowing a locking key on the socket shell to enter and be in locking fit with the locking key, the locking sleeve is further provided with a locking key jacking surface which is used for sliding along the circumferential direction and being in axial blocking fit with the locking key before the locking key enters the locking groove so as to compress the elastic part, the locking grooves are formed in the locking key jacking surface, the locking grooves are arranged in pairs, and the same pair of locking grooves are arranged along the radial direction of the locking sleeve.

Furthermore, the locking sleeve is provided with a locking groove for allowing a locking key on the socket shell to enter and be in locking fit with the locking key, the locking sleeve is further provided with a locking key jacking surface which is used for sliding along the circumferential direction and being in axial blocking fit with the locking key before the locking key enters the locking groove so as to compress the elastic part, the locking groove is formed in the locking key jacking surface, the locking groove is formed in the end surface of the locking sleeve, and the end surface of the locking sleeve forms the locking key jacking surface.

Furthermore, the locking key is a fixed key which is matched with the top pressing surface of the locking key in a circumferential sliding and axial blocking manner to compress the elastic part before the locking key enters the locking groove.

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 is a fluid connector plug, and a plug valve core which is in abutting-pressing fit with the flow guide column is movably assembled in the plug shell.

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 which is matched with the rotation stopping key in a rotation stopping way, the locking sleeve and the connecting sleeve realize the rotation stopping matching through the rotation stopping key and the rotation stopping key groove, the locking key is arranged on the locking sleeve, 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 thickness of the locking key along the axial direction of the plug; or the locking groove is arranged on the locking sleeve, 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.

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, the plugging end of the socket shell is provided with a socket external thread which is matched with the plug internal thread so as to realize plugging and separation of the plug and the socket by rotating the connecting sleeve, and the socket shell is provided with a locking key which is matched with the locking groove on the locking sleeve in a locking way; or the socket shell is provided with a locking groove for the locking key on the locking sleeve to enter and be in locking fit with the locking key, the socket shell is also provided with a locking key jacking surface which is used for being in sliding fit with the locking key along the circumferential direction and being in axial stopping fit with the locking key before the locking key enters the locking groove so as to compress the elastic part, and the locking groove is arranged on the locking key jacking surface.

Further, the locking key is provided on an outer circumferential surface of the socket housing.

The invention has the beneficial effects that: the connector is characterized in that the plug shell is provided with a 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, the plug and the socket are prevented from loosening, the locking key is matched and locked with the locking groove, the operating force is small, the noise is low, and the problems of high noise and poor operating hand feeling in the locking process of the conventional fluid connector are solved.

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.

The front end face of the locking sleeve 14 is provided with a locking groove 143, the socket housing 21 is provided with a locking key 211 which is in locking fit with the locking groove 143, the locking key is integrally arranged on the socket housing, and in other embodiments, the locking key can be assembled on the socket housing in an interference fit manner; in other embodiments, the locking key 211 may be fixedly disposed at the front end of the locking sleeve 14, and the socket housing 21 is provided with a locking groove 143 that is in locking engagement 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, wherein the front ends of the plug and the socket are plugging ends, the socket comprises a socket shell, the plugging end of the socket shell is provided with a socket external thread, the plug comprises a plug shell, the plug shell is sleeved with a connecting sleeve, the connecting sleeve is matched with the plug shell in a circumferential rotating and axial limiting way, the connecting sleeve is provided with a plug internal thread matched with the socket external thread, the socket shell is matched with the connecting sleeve in a threaded way to realize the plugging and the separation of the plug and the socket by rotating the connecting sleeve, the connecting sleeve is sleeved with a locking sleeve, the locking sleeve is matched with the connecting sleeve in a circumferential rotation stopping and axial sliding way, the plug is provided with an elastic piece used for applying acting force to the locking sleeve towards the plugging direction of the plug, one of the locking sleeve and the socket shell is provided with a locking key, the other of the, 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 locking groove is arranged on the locking key top pressing surface. The structure of each component can adopt other forms commonly used in the field besides the form in the specific embodiment 1, wherein the number of the locking keys can be only one; an inner flange can be arranged in the locking sleeve, a top pressing surface of the locking key can be arranged on the inner flange, and the locking groove can also be arranged on the socket shell; the elastic element can be a ripple spring or a disc spring.

As a further optimization of embodiment 2, embodiment 3 of the connector of the present invention is configured such that the locking key is a fixed key which is engaged with the pressing surface of the locking key to be slid in the circumferential direction and axially stopped to compress the elastic member before the locking key enters the locking groove. 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.

As a further optimization of embodiment 3, embodiment 4 of the connector of the present invention provides that, in order to facilitate the processing of the locking sleeve, the locking groove is disposed on the locking sleeve, and the locking key is disposed on the socket housing. Other embodiments may also provide the locking key on the socket housing. 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.

As a further optimization of embodiment 4, embodiment 5 of the connector of the present invention is configured such that, in order to improve the stability of the locked plug and socket, the locking grooves are arranged in pairs, and the same pair of locking grooves are arranged along the radial direction of the locking sleeve. The number of the locking grooves may be only one, or an odd number.

As a further optimization of embodiment 4, embodiment 6 of the connector of the present invention is configured such that, in order to simplify the structure of the plug, the lock groove is provided on an end surface of the lock sleeve, and the end surface of the lock sleeve constitutes the lock key top pressing surface.

As a further improvement to any one of embodiments 2 to 6, embodiment 7 of the connector of the present invention is configured such that the elastic member is inserted between the lock sleeve and the plug housing, thereby facilitating the installation of the elastic member. In other embodiments, the elastic member may be disposed between the locking sleeve and the connection sleeve.

Embodiment 8 of the connector of the present invention, as a further preferable embodiment of embodiment 7, the elastic member is a wave spring.

As a further optimization of any one of embodiments 2 to 6, embodiment 9 of the connector of the present invention is a fluid connector, wherein the socket housing is internally provided with a flow guiding column and a socket valve sleeve movably assembled on the flow guiding column and adapted to be in press fit with the plug housing, and the plug housing is movably assembled with a plug valve core adapted to be in press fit with the flow guiding column. Simplifying the construction of the fluid connector. In other embodiments, a valve sleeve and a flow guiding column can be arranged in the plug shell, and a valve core is movably assembled in the socket shell; in addition, the connector can be an optical-electrical connector or other common connector types requiring locking.

As a further optimization of any one of embodiments 2 to 6, 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, embodiment 11 of the connector of the present invention is configured to facilitate installation and improve rotation stopping stability of the lock sleeve and the socket housing, where the rotation stopping key groove is disposed on the connection sleeve, the rotation stopping key is disposed on the lock sleeve, and the rotation stopping key groove is disposed at the rear end of the connection sleeve to allow the rotation stopping key to be inserted into the rotation stopping key groove from the rear to the front. In other embodiments, the rotation stopping key can be inserted into the rotation stopping key groove from front to back.

As a further optimization of any one of the specific embodiments 3 to 6, specific embodiment 12 of the connector of the present invention is configured such that one of the lock sleeve and the connection sleeve is provided with a rotation stop key, and the other is provided with a rotation stop key groove that is in rotation stop fit with the rotation stop key, the lock sleeve and the connection sleeve are in rotation stop fit through the rotation stop key and the rotation stop key groove, the lock key is provided on the lock sleeve, the lock groove is provided on the socket housing, and a rotation stop sliding stroke of the rotation stop key and the rotation stop key groove in the axial direction of the plug is not less than a thickness of the lock key in the axial direction of the plug; in this embodiment, the locking groove may be disposed on the locking sleeve, the locking key is disposed on the socket housing, 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 depth of 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. Connector, including plug and socket, the front end of plug and socket is the grafting end, and the socket includes socket shell, and socket shell's grafting end is equipped with the socket external screw thread, and the plug includes plug shell, plug shell overcoat is equipped with the adapter sleeve, adapter sleeve and plug shell circumferential direction, the spacing cooperation of axial, be equipped with on the adapter sleeve be used for with the plug internal thread of socket external screw thread adaptation, socket shell and adapter sleeve screw-thread fit close and the separation with inserting of realizing plug and socket through rotating the adapter sleeve, the adapter sleeve overcoat is equipped with the lock sleeve, lock sleeve and adapter sleeve circumferential direction stall, axial sliding fit, be equipped with on the plug and be used for applying the elastic component towards plug direction effort, its characterized in that to the lock sleeve: one of the locking sleeve and the socket shell is provided with a locking key, the other one of the locking sleeve and the socket shell is provided with a locking groove for the locking key to enter so as to be in locking fit with the locking key, the locking sleeve or the socket shell is provided with a locking key jacking surface which is used for being in circumferential sliding and axial blocking fit with the locking key before the locking key enters the locking groove, and the locking groove is arranged on the locking key jacking surface; the locking key is a fixed key which is matched with the top pressing surface of the locking key in a blocking way along the circumferential direction and in an axial direction to compress the elastic part before the locking key enters the locking groove; 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, the locking sleeve and the connecting sleeve realize rotation stopping matching through the rotation stopping key and the rotation stopping key groove, the locking key is arranged on the locking sleeve, the locking groove is arranged on the socket shell, 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 thickness of the locking key along the axial direction of the plug; or the locking groove is arranged on the locking sleeve, the locking key is arranged on the socket shell, 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.

2. The connector of claim 1, wherein: the locking groove and the top pressing surface of the locking key are arranged on the locking sleeve, and the locking key is arranged on the socket shell.

3. The connector of claim 2, wherein: the locking grooves are arranged in pairs, and the same pair of locking grooves are arranged along the radial direction of the locking sleeve.

4. The connector of claim 2, wherein: the locking groove is formed in the end face of the locking sleeve, and the end face of the locking sleeve forms the top pressing face of the locking key.

5. The connector according to any one of claims 1 to 4, wherein: the elastic piece is arranged between the locking sleeve and the plug shell in a jacking mode.

6. The connector of claim 5, wherein: the elastic piece is a corrugated spring.

7. The connector according to any one of claims 1 to 4, wherein: the connector is a fluid connector, a flow guide column and a socket valve sleeve which is movably assembled on the flow guide column and is used for being in jacking fit with the plug shell are arranged in the socket shell, and a plug valve core which is used for being in jacking fit with the flow guide column is movably assembled in the plug shell.

8. The connector of claim 1, 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.

9. The plug, the front end of plug is the grafting end, and the plug includes plug housing, plug housing overcoat is equipped with and is used for with plug housing circumferential direction, the spacing cooperation adapter sleeve of axial, be equipped with on the adapter sleeve be used for with the adaptation of socket external screw thread in order to realize the plug and the plug internal thread that closes and separate of inserting of socket through rotating the adapter sleeve, the adapter sleeve overcoat is equipped with the lock sleeve, lock sleeve and adapter sleeve circumference stall, axial sliding fit, be equipped with on the plug and be used for applying the elastic component towards plug direction effort of inserting to the lock sleeve, its characterized in that: the locking sleeve is provided with a locking key which is used for locking and matching with a locking groove on the socket shell; or the locking sleeve is provided with a locking groove for the locking key on the socket shell to enter and be in locking fit with the locking key, the locking sleeve is also provided with a locking key jacking surface which is used for being in sliding and axial blocking fit with the locking key along the circumferential direction before the locking key enters the locking groove, and the locking groove is arranged on the locking key jacking surface; the locking key is a fixed key which is matched with the top pressing surface of the locking key in a blocking way along the circumferential direction and in an axial direction to compress the elastic part before the locking key enters the locking groove; 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, the locking sleeve and the connecting sleeve realize rotation stopping matching through the rotation stopping key and the rotation stopping key groove, the locking key is arranged on the locking sleeve, 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 thickness of the locking key along the axial direction of the plug; or the locking groove is arranged on the locking sleeve, 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.

10. The plug of claim 9, wherein: the socket comprises a socket shell and a locking sleeve, wherein the socket shell is provided with a locking key, the locking sleeve is provided with a locking key pushing surface, the locking key is used for allowing the locking key on the socket shell to enter and be in locking fit with the locking key, the locking sleeve is also provided with a locking key pushing surface which is used for sliding along the circumferential direction and being in axial blocking fit with the locking key before the locking key enters the locking groove, the locking groove is arranged on the locking key pushing surface, the locking grooves are arranged in pairs, and the same pair of locking grooves are arranged along the radial direction of the.

11. The plug of claim 9, wherein: the socket comprises a socket shell and is characterized in that a locking sleeve is arranged on the socket shell, a locking key is arranged on the socket shell, the locking sleeve is provided with a locking groove for the locking key on the socket shell to enter and be in locking fit with the locking key, the locking sleeve is also provided with a locking key jacking surface which is used for sliding along the circumferential direction and being in axial blocking fit with the locking key before the locking key enters the locking groove, the locking groove is arranged on the locking key jacking surface, the locking groove is arranged on the end surface of the locking sleeve, and the end surface of the locking sleeve forms the locking key jacking.

12. A plug as claimed in claim 9, 10 or 11, wherein: the elastic piece is arranged between the locking sleeve and the plug shell in a jacking mode.

13. The plug of claim 12, wherein: the elastic piece is a corrugated spring.

14. A plug as claimed in claim 9, 10 or 11, wherein: the plug is a fluid connector plug, and a plug valve core which is in abutting-pressing fit with the flow guide column is movably assembled in the plug shell.

15. The plug 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.

16. Socket, the front end of socket is the grafting end, and the socket includes socket shell, socket shell's grafting end be equipped with be used for with plug internal thread adaptation in order to realize the socket external screw thread that closes and separate of inserting of plug and socket through rotating the adapter sleeve, its characterized in that: the socket shell is provided with a locking key which is used for locking and matching with a locking groove on the locking sleeve; or the socket shell is provided with a locking groove for the locking key on the locking sleeve to enter and be in locking fit with the locking key, the socket shell is also provided with a locking key jacking surface which is used for sliding along the circumferential direction and being in axial blocking fit with the locking key before the locking key enters the locking groove, and the locking groove is arranged on the locking key jacking surface; the locking key is a fixed key which is matched with the top pressing surface of the locking key in a blocking way along the circumferential direction and in an axial direction to compress the elastic part before the locking key enters the locking groove; 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, the locking sleeve and the connecting sleeve realize rotation stopping matching through the rotation stopping key and the rotation stopping key groove, the locking key is arranged on the locking sleeve, 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 thickness of the locking key along the axial direction of the plug; or the locking groove is arranged on the locking sleeve, 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.

17. The receptacle of claim 16, wherein: the locking key is disposed on an outer circumferential surface of the socket housing.