CN215299666U

CN215299666U - Plug device and connector

Info

Publication number: CN215299666U
Application number: CN202121137699.8U
Authority: CN
Inventors: 王定森; 杨刚; 林平; 杨玉强
Original assignee: Xiamen Wain Electrical Co ltd
Current assignee: Xiamen Wain Electrical Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-12-24
Anticipated expiration: 2031-05-25

Abstract

The utility model relates to a plug device and a connector, the plug device comprises a male plug component and a female plug component, the female plug component is provided with a guide component, the guide component comprises a connecting ring, an elastic part and a movable guide ring, the connecting ring is provided with a guide groove extending from the front end to the rear end, and the outer side of the connecting ring is provided with the movable guide ring; the elastic piece is arranged between the connecting piece and the movable guide ring, and the movable guide ring extrudes the elastic piece when moving towards the rear end relative to the connecting ring; be equipped with the guide block on public lateral wall of inserting the subassembly, when public subassembly of inserting female subassembly, the guide block removes to the rear end along the guide way to realize the direction. When the male needle assembly is inserted, the guide block leans against the guide bevel of the movable guide ring and then slides along the guide groove of the connecting ring, so that guide alignment is realized, finally, the insertion of radial deviation and angle deviation can be accommodated, and the insertion efficiency is effectively improved. When the male pin component collides with the guide component, the elastic component can be used for shrinkage buffering, so that the device can be effectively protected and prevented from being damaged after collision.

Description

Plug device and connector

Technical Field

The utility model relates to a connector technical field especially relates to a plug device and connector.

Background

A connector is a component that is frequently accessed by engineers. The connector bridges a communication bridge at a blocked position or among isolated and non-communicated circuits in the circuit, so that current flows and the circuit realizes a preset function. The connector is an indispensable component in an electronic device, and the connector form and structure are varied, and there are various different forms of connectors depending on the application object, frequency, power, application environment, and the like. While some power and communication connectors need to be used underwater, the requirements on sealing and water proofing performance are high, and during underwater operation, the visibility is low, and blind plugging or automatic operation is required by using an ROV (remote operated unmanned vehicle).

However, the existing underwater connector mainly has the following problems: under the environment of underwater or dim, when the public mother of connector inserted the grafting promptly blindly and inserts, public subassembly and the female subassembly of inserting, it is difficult to the location and aims at, and the grafting efficiency is lower, still can produce the damage to each part of connector because of the collision in addition, leads to the connector to damage the inefficacy even.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a plugging device and a connector, which are used to solve the problems of low efficiency and easy collision and damage of the conventional connector during the blind plugging process.

The utility model provides a plugging device, which comprises a male plug assembly and a female plug assembly, wherein the female plug assembly is provided with a guide assembly, the guide assembly comprises a connecting ring, an elastic part and a movable guide ring, the connecting ring is provided with a guide groove extending from the front end to the rear end, and the outer side of the connecting ring is provided with the movable guide ring; the elastic piece is arranged between the connecting piece and the movable guide ring, and the movable guide ring extrudes the elastic piece when moving towards the rear end relative to the connecting ring; be equipped with the guide block on public lateral wall of inserting the subassembly, public subassembly of inserting when female subassembly of inserting, the guide block is followed the guide way removes to the rear end to realize the direction.

In order to guide the male plug in and facilitate the guide block to align to the guide groove, the front end of the movable guide ring is provided with a guide inclined opening gradually contracting from the front end to the rear end, and the guide inclined opening is butted with the guide groove.

In order to guide the movement of the movable guide ring, the guide assembly further comprises a fixed guide ring and a bolt, and the fixed guide ring is fixed on the outer side of the connecting ring through the bolt; the side wall of the movable guide ring is provided with a guide hole groove, and the bolt is movably inserted in the guide hole groove.

In order to guide the movement of the movable guide ring, the guide hole groove is a long strip-shaped through hole, and the bolt is movably inserted into the long strip-shaped through hole.

Wherein, for the activity guide ring can have slightly to control and rock, promote the fault-tolerant nature of grafting direction, the guiding hole groove is fan-shaped through-hole, bolt movably insert locate in fan-shaped through-hole.

In order to conveniently lock the male plug assembly on the female plug assembly, ensure connection and avoid falling, a groove is formed in the inner side wall of a shell of the male plug assembly, and the female plug assembly is provided with an elastic locking buckle which is arranged in the radial direction; when the male plug assembly is inserted into the female plug assembly to a preset position, the elastic locking buckle clamps the male plug assembly through the groove.

In order to provide double guarantee and avoid disconnection of the male plug assembly and the female plug assembly caused by accidental pulling out of the male plug, the grooves comprise a first groove and a second groove which are sequentially formed from the front end to the rear end; when the elastic locking buckle is clamped in the first groove or the second groove, the male pin module in the male plug assembly is connected with the female pin module in the female plug assembly.

In order to unlock the male plug assembly in advance when the male plug assembly is pulled out so as to facilitate the separation of the male plug assembly and the female plug assembly, the female plug assembly further comprises a unlocking ring, the unlocking ring is sleeved outside the outer side wall of the female plug assembly, a through hole is formed in the unlocking ring, and the elastic locking buckle penetrates through the through hole; when the unlocking ring moves in the axial direction relative to the female plug assembly, the side wall of the through hole presses the elastic locking buckle, so that the male plug assembly is unlocked.

In order to provide reset elasticity for the unlocking ring and enable the unlocking ring to automatically rebound, a reset spring is arranged on the unlocking ring; when the unlocking ring moves towards the rear end, the return spring provides resilience force for the unlocking ring.

In order to facilitate the axial pulling of the unlocking ring, the unlocking ring further comprises a control ring, the control ring is sleeved outside the female plug assembly, and the control ring is in transmission connection with the unlocking ring; when the male plug assembly is separated from the female plug assembly, the control ring drives the unlocking ring to move towards the rear end direction.

In order to control the ring, the unlocking ring can be pulled, the plugging device further comprises a first connecting pin and a second connecting pin, and the unlocking ring and the connecting ring are in close fit in the axial direction through the first connecting pin; the control ring is axially and tightly matched with the connecting ring through the second connecting pin.

In order to limit the axial movement of the control ring and the unlocking ring, a first step for limiting the unlocking ring is arranged at the front end of the outer side of the shell of the female plug assembly, and a second step for limiting the control ring is arranged at the rear end of the outer side of the shell of the female plug assembly.

On the other hand, the utility model also provides a connector, which comprises a plug connecting module and the plug device, wherein a male pin module is arranged in the male plug component, and a female pin module is arranged in the female plug component; when the male plug assembly is inserted into the female plug assembly, the male needle module is in contact conduction with the female needle module. In order to remove impurities at the joint of the male pin and the female pin and ensure full contact of the male pin and the female pin and to ensure balanced pressure in the cavity when the male pin is inserted, the female pin module is provided with an insertion hole, and the front end of the insertion hole is inserted with a sealing insulating rod; the female needle module further comprises an oil bag group, the oil bag group comprises an inner oil bag and an outer oil bag, and an outer cavity, a connecting cavity and an inner cavity are sequentially formed between the oil bag group and the side surface of the sealing insulating rod from the front end to the rear end; the connection point of the male needle module and the female needle module is arranged in the connection cavity; a flushing valve plate for flushing the male needle module is arranged between the front end and the rear end of the outer cavity, and the rear end of the outer cavity is communicated with the outer cavity through a circulating through hole in the oil bag group; a plurality of inner cavity micropores are arranged between the inner cavity and the inner oil bag.

In order to encapsulate the oil bag, an inner cavity and an outer cavity are formed, a front frame and a rear frame are arranged between the inner oil bag and the outer oil bag, the rear end of the inner oil bag is clamped with the rear frame, and the rear end of the outer oil bag is locked with an oil bag locking block; the periphery of the front frame and the rear frame is provided with a plurality of micropores used for balancing the inner cavity and the external pressure.

The utility model discloses technical scheme has the direction subassembly through setting up outside female subassembly of inserting, and it has included the activity direction circle in the guide way and the guide way outside. When the male needle assembly is inserted, the guide block leans against the guide bevel of the movable guide ring and then slides along the guide groove of the connecting ring, so that guide alignment is realized, finally, the insertion of radial deviation and angle deviation can be accommodated, and the insertion efficiency can be effectively improved. Meanwhile, an elastic part is arranged between the movable guide ring and the connecting ring, and when the male needle assembly collides with the guide assembly in the inserting process, the elastic part can be used for shrinkage and buffering, so that the device can be effectively protected, and the device can be prevented from being damaged after being collided.

Drawings

Fig. 1 is an overall schematic view of an embodiment of the connector of the present invention;

FIG. 2 is a front view of one embodiment of the connector shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of one embodiment of the connector shown in FIG. 1;

FIG. 4 is a schematic cross-sectional view of another angle of an embodiment of the connector shown in FIG. 1;

fig. 5 is a schematic cross-sectional view of a guide assembly portion of an embodiment of the connector of the present invention;

fig. 6 is a schematic cross-sectional view of another angle of the guiding component part according to an embodiment of the connector of the present invention;

fig. 7 is a schematic cross-sectional view of an embodiment of the connector according to the present invention, in which the elastic locking buckle is engaged in the first groove;

fig. 8 is a schematic cross-sectional view of an embodiment of the connector of the present invention, in which the elastic locking buckle is engaged in the second groove;

fig. 9 is a schematic cross-sectional view of a female plug assembly according to an embodiment of the connector of the present invention;

fig. 10 is a schematic structural view of an elastic locking buckle according to an embodiment of the present invention;

fig. 11 is a schematic structural view of an unlocking ring according to an embodiment of the connector of the present invention;

fig. 12 is a schematic structural view of a control ring according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a movable guide ring according to an embodiment of the present invention;

fig. 14 is a schematic structural view of a movable guide ring according to another embodiment of the connector of the present invention;

fig. 15 is a schematic cross-sectional view of a female pin module according to an embodiment of the connector of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a male plug assembly; 11. a guide block; 12. a first groove; 13. a second groove; 2. a female plug assembly; 21. an elastic locking buckle; 22. unlocking the ring; 221. a through hole; 222. a return spring; 23. a steering ring; 24. a first connecting pin; 25. a second connecting pin; 31. a connecting ring; 311. a guide groove; 32. an elastic member; 33. a movable guide ring; 331. a guide bevel opening; 332. a guide hole groove; 34. fixing a guide ring; 35. a bolt; 4. a male pin module; 5. a female needle module; 51. a sealing insulating rod; 52. an outer cavity; 53. an inner cavity; 54. flushing the valve plate; 55. an inner oil pocket; 56. an outer oil pocket; 57. inner cavity micropores; 58. a connecting cavity; 591. a front frame; 592. a rear frame.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is apparent that the specific details set forth in the following description are merely exemplary of the invention, which can be practiced in many other embodiments that depart from the specific details disclosed herein. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In an embodiment, please refer to fig. 1 to 14, which illustrate a plugging device according to the present invention, including a male plug assembly 1 and a female plug assembly 2, wherein the female plug assembly 2 is provided with a guiding assembly, the guiding assembly includes a connecting ring 31, an elastic member 32 and a movable guiding ring 33, the connecting ring 31 is provided with a guiding groove 311 extending from a front end to a rear end, and the outer side of the connecting ring 31 is provided with the movable guiding ring 33; the elastic member 32 is disposed between the connecting member and the movable guide ring 33, and the movable guide ring 33 presses the elastic member 32 when being displaced toward the rear end with respect to the connecting ring 31; be equipped with guide block 11 on the lateral wall of public subassembly 1 of inserting, when public subassembly 1 of inserting inserts female subassembly 2, guide block 11 moves to the rear end along guide way 311 to realize the direction.

The utility model discloses technical scheme has the direction subassembly through setting up outside female subassembly 2 of inserting, and it has included the movable guide ring 33 in the guide way 311 and the guide way 311 outside. When the male pin assembly is inserted, the guide block 11 slides along the guide groove 311, so that the guide alignment is realized, and the insertion efficiency can be effectively improved. Meanwhile, an elastic piece 32 is arranged between the movable guide ring 33 and the connecting ring 31, and when the male pin component collides with the guide component in the inserting process, the elastic piece 32 can be used for shrinkage and buffering, so that the device can be effectively protected, and the device can be prevented from being damaged after being collided.

In this embodiment, in order to guide the male plug and facilitate the alignment of the guide block 11 with the guide slot 311, the front end of the movable guide ring 33 is provided with a guide bezel 331 gradually shrinking from the front end to the rear end, and the guide bezel 331 is abutted to the guide slot 311. When the male plug component 1 touches the inclined bell mouth, the male plug component 1 can be guided into the guide slot 311 along the inclined guide opening 331, so that the male plug component 1 can be accurately guided, and the guide block 11 can be conveniently aligned with the guide slot 311.

In the present embodiment, the elastic member 32 is a compression spring, but may be other elastic members such as elastic rubber, and the present invention is not limited to the embodiment.

Further, in order to guide the movement of the movable guide ring 33, the guide assembly further comprises a fixed guide ring 34 and a plug 35, wherein the fixed guide ring 34 is fixed on the outer side of the connecting ring 31 through the plug 35; the side wall of the movable guide ring 33 is provided with a guide hole groove 332, and the bolt 35 is movably inserted in the guide hole groove 332. When the male and female plugs are plugged, the plug pin 35 slides from back to front in the guide hole groove 332.

In one embodiment, to facilitate guiding the movement of the movable guide ring 33, the guide hole 332 is an elongated through hole, and the latch 35 is movably inserted into the elongated through hole.

In another embodiment, in order to allow the movable guiding ring 33 to slightly swing left and right and improve the fault tolerance of the plugging direction, the guiding hole 332 is a fan-shaped through hole, and the plug pin 35 is movably inserted into the fan-shaped through hole.

Of course, the guide hole groove 332 may be a through hole with other shapes, and the shape is not limited to the shape described in the embodiment.

In the embodiment of the utility model, the inner side wall of the outer shell of the male plug component 1 is provided with a groove, and the female plug component 2 is provided with an elastic locking buckle 21 which is arranged radially; when the male plug assembly 1 is inserted into the female plug assembly 2 to a preset position, the elastic locking buckle 21 clamps the male plug assembly 1 through the groove.

Furthermore, in order to provide double guarantee and avoid disconnection of the male plug assembly 1 and the female plug assembly 2 caused by accidental male plug pulling-out, the grooves comprise a first groove 12 and a second groove 13 which are sequentially arranged from the front end to the rear end; when the elastic locking buckle 21 is clamped in the first groove 12 or the second groove 13, the male pin module 4 in the male plug assembly 1 and the female pin module 5 in the female plug assembly 2 are in a connection state.

It can be understood that the cooperation of the groove and the elastic locking buckle 21 can conveniently lock the male plug component 1 on the female plug component 2, so that the connection is ensured and the falling off is avoided. The setting of two recesses is dual guarantee, avoids leading to the public disconnect of inserting subassembly 1 and female subassembly 2 because of the unexpected public back of inserting of pulling out.

Of course, the number of the grooves may be more than two, but it is more preferable to use two grooves described in this embodiment, which not only protects the male plug assembly 1 from being accidentally dropped, but also does not lead to an excessively tedious pulling-out process.

On the basis of the embodiment, further, the female plug assembly 2 further comprises an unlocking ring 22, the unlocking ring 22 is sleeved outside the outer side wall of the female plug assembly 2, a through hole 221 is formed in the unlocking ring 22, and the elastic locking buckle 21 penetrates through the through hole 221; when the unlocking ring 22 moves in the axial direction relative to the female plug assembly 2, the side wall of the through hole 221 presses the elastic locking buckle 21 downward, so that the male plug assembly 1 is unlocked. The unlocking ring 22 is provided with a return spring 222; the return spring 222 provides a return force to the unlocking ring 22 when the unlocking ring 22 is moved towards the rear end.

It will be appreciated that the unlocking ring 22 can be pre-unlocked when the male plug assembly 1 is pulled out, so as to facilitate the separation of the male plug assembly 1 from the female plug assembly 2. And the return spring 222 provides a return elastic force to the unlocking ring 22 so that it can be automatically rebounded.

On the basis of the embodiment, in order to facilitate the axial pulling of the unlocking ring 22, the unlocking ring further comprises a control ring 23, the control ring 23 is sleeved outside the female plug assembly 2, and the control ring 23 is in transmission connection with the unlocking ring 22; when the male plug assembly 1 is separated from the female plug assembly 2, the control ring 23 drives the unlocking ring 22 to move towards the rear end direction. Specifically, the plugging device further comprises a first connecting pin 24 and a second connecting pin 25, the unlocking ring 22 and the connecting ring 31 are axially and tightly matched through the first connecting pin 24; the operating ring 23 is axially fitted tightly to the connecting ring 31 by means of a second connecting pin 25. In order to limit the axial movement of the control ring 23 and the unlocking ring 22, a first step for limiting the unlocking ring 22 is arranged at the front end of the outer side of the shell of the female plug assembly 2, and a second step for limiting the control ring 23 is arranged at the rear end of the outer side of the shell of the female plug assembly 2.

On the other hand, referring to fig. 15, the utility model also provides a connector, which comprises a plug connection module and the plug device, wherein a male pin module 4 is arranged in the male plug component 1, and a female pin module 5 is arranged in the female plug component 2; when the male plug assembly 1 is inserted into the female plug assembly 2, the male pin module 4 is in contact conduction with the female pin module 5.

Wherein, female subassembly 2 of inserting comprises female shell and the female needle module 5 of a plurality of, and preceding backup pad and back backup pad are equipped with respectively to female both ends around inserting subassembly 2, are equipped with the locking support column between preceding backup pad in the front. The front supporting plate is fixed in the end face of the female plug shell, and the rear supporting plate is fastened at the rear end of the female plug shell through a locking sleeve.

On the basis of the embodiment, in order to remove impurities at the joint of the male pin and the female pin and ensure the sufficient contact of the male pin and the female pin, and also in order that the pressure in the cavity can be balanced when the male pin is inserted, the female pin module 5 is provided with an insertion hole, and the front end of the insertion hole is inserted with a sealing insulating rod 51; the female needle module 5 further comprises an oil bag group, and an outer cavity 52, a connecting cavity 58 and an inner cavity 53 are formed between the oil bag group and the side surface of the sealing insulating rod 51 from the front end to the rear end in sequence; the outer cavity 52, the connecting cavity 58 and the inner cavity 53 are filled with insulating oil; the insulating oil of the outer cavity 52 is not communicated with the insulating oil of the connecting cavity 58 and the inner cavity 53; the connection point of the male needle module 4 and the female needle module 5 is arranged in the connection cavity 58; a flushing valve plate 54 for flushing the male needle module 4 is arranged between the front end and the rear end of the outer cavity 52, and the rear end of the outer cavity 52 is communicated with the oil bag group through a circulating through hole in the oil bag group; a plurality of inner cavity micropores 57 are arranged between the inner cavity 53 and the inner oil bag 55, and the inner cavity 53 is communicated with the inner oil bag 55 through the inner cavity micropores 57. During the plugging and unplugging process of the connector, the pressure change of the inner cavity 53 can be quickly transmitted to the outer cavity 52, so that the pressure balance of the inner cavity and the outer cavity can be quickly formed.

Specifically, for the encapsulation of the oil bag to form the inner cavity 53 and the outer cavity 52, the oil bag group includes an inner oil bag 55 and an outer oil bag 56, a front frame 591 and a rear frame 592 are arranged between the inner oil bag 55 and the outer oil bag 56, the rear end of the inner oil bag 55 is clamped with the rear frame 592, and the rear end of the outer oil bag 56 is locked with an oil bag locking block. The front frame 591 and the rear frame 592 have a plurality of micro holes around their peripheries, so that the pressure change transmitted from the inner cavity 53 can be quickly transmitted to the outside during the insertion and extraction process of the connector, thereby forming a pressure balance between the outer cavity 52 and the outside of the connector.

It should be noted that the female needle module 5 is provided with an inner oil bag 55 and an outer oil bag 56, a front frame 591 and a rear frame 592 are arranged between the inner oil bag and the outer oil bag, the front ends of the inner oil bag and the outer oil bag respectively form a seal with the sealing insulating rod 51, the inner oil bag 55 is clamped by an oil bag rear end sleeve and the rear frame 592, and the rear end of the outer oil bag 56 is locked by the oil bag rear end sleeve and an oil bag locking block, thereby forming an inner cavity and an outer cavity. The front end of the oil bag group is provided with a scouring valve plate 54, the rear side of the scouring valve plate 54 is provided with a plurality of circulating through holes, and after the front end of the male needle enters the scouring valve plate 54, washed impurities enter the outer oil bag 56 through the holes and are replaced with the insulating oil of the outer oil bag 56.

In this embodiment, the periphery of the front end connector has a plurality of inner cavity micro-holes 57, so that the pressure change of the inner cavity 53 can be quickly transmitted to the outer cavity 52 during the insertion and extraction process of the connector, thereby forming the pressure balance between the inner cavity 53 and the outer cavity 52. The front frame 591 and the rear frame 592 have a plurality of micro holes around their peripheries, so that the pressure change transmitted from the inner cavity 53 can be quickly transmitted to the outside during the insertion and extraction process of the connector, thereby forming a pressure balance between the outer cavity 52 and the outside of the connector. Eventually pressure equalization of the inner chamber 53 with the outer chamber 52 and the connector environment is achieved.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, substitutions and improvements can be made, and all of them should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the claims.

Claims

1. A plug device comprises a male plug assembly and a female plug assembly, and is characterized in that the female plug assembly is provided with a guide assembly, the guide assembly comprises a connecting ring, an elastic piece and a movable guide ring, the connecting ring is provided with a guide groove extending from the front end to the rear end, and the outer side of the connecting ring is provided with the movable guide ring; the elastic piece is arranged between the connecting piece and the movable guide ring, and the movable guide ring extrudes the elastic piece when moving towards the rear end relative to the connecting ring; be equipped with the guide block on public lateral wall of inserting the subassembly, public subassembly of inserting when female subassembly of inserting, the guide block is followed the guide way removes to the rear end to realize the direction.

2. The plugging device according to claim 1, wherein a guide bevel gradually contracting from the front end to the rear end is arranged at the front end of the movable guide ring, and the guide bevel is butted with the guide groove; the guide assembly further comprises a fixed guide ring and a bolt, and the fixed guide ring is fixed on the outer side of the connecting ring through the bolt; the side wall of the movable guide ring is provided with a guide hole groove, and the bolt is movably inserted in the guide hole groove.

3. The plugging device according to claim 2, wherein the guide hole groove is an elongated through hole or a fan-shaped through hole, and the latch is movably inserted into the elongated through hole or the fan-shaped through hole.

4. The plugging device according to claim 1, wherein a groove is formed in an inner side wall of a housing of the male plug assembly, and the female plug assembly is provided with an elastic locking buckle which is radially arranged; when the male plug assembly is inserted into the female plug assembly to a preset position, the elastic locking buckle clamps the male plug assembly through the groove.

5. The plugging device according to claim 4, wherein the grooves comprise a first groove and a second groove which are arranged in sequence from the front end to the rear end; when the elastic locking buckle is clamped in the first groove or the second groove, the male pin module in the male plug assembly is connected with the female pin module in the female plug assembly.

6. The plugging device according to claim 5, wherein the female plug assembly further comprises an unlocking ring sleeved outside an outer side wall of the female plug assembly, the unlocking ring is provided with a through hole, and the elastic locking buckle passes through the through hole; when the unlocking ring moves in the axial direction relative to the female plug assembly, the side wall of the through hole presses the elastic locking buckle down, so that the male plug assembly is unlocked;

wherein, the unlocking ring is provided with a return spring; when the unlocking ring moves towards the rear end, the return spring provides resilience force for the unlocking ring.

7. The plugging device according to claim 6, further comprising a control ring sleeved outside the female plug assembly, the control ring being in transmission connection with the unlocking ring; when the male plug assembly is separated from the female plug assembly, the control ring drives the unlocking ring to move towards the rear end direction.

8. The plugging device according to claim 7, further comprising a first connecting pin and a second connecting pin, wherein the unlocking ring is axially tightly fitted with the connecting ring through the first connecting pin; the control ring is axially and tightly matched with the connecting ring through the second connecting pin.

9. The plugging device according to claim 8, wherein a front end of an outer side of the housing of the female plug assembly is provided with a first step for limiting the unlocking ring, and a rear end of the outer side of the housing of the female plug assembly is provided with a second step for limiting the control ring.

10. A connector, comprising a plug connection module and the plug device according to any one of claims 1 to 9, wherein a male pin module is arranged in the male plug assembly, and a female pin module is arranged in the female plug assembly; when the male plug assembly is inserted into the female plug assembly, the male needle module is in contact conduction with the female needle module; the female pin module is provided with an insertion hole, and the front end of the insertion hole is inserted with a sealing insulating rod; the female needle module further comprises an oil bag group, the oil bag group comprises an inner oil bag and an outer oil bag, and an outer cavity, a connecting cavity and an inner cavity are sequentially formed between the oil bag group and the side surface of the sealing insulating rod from the front end to the rear end; the connection point of the male needle module and the female needle module is arranged in the connection cavity; a flushing valve plate for flushing the male needle module is arranged between the front end and the rear end of the outer cavity, and the rear end of the outer cavity is communicated with the outer cavity through a circulating through hole in the oil bag group; a plurality of inner cavity micropores are arranged between the inner cavity and the inner oil bag.

11. The connector of claim 10, wherein a front frame and a rear frame are disposed between the inner oil bag and the outer oil bag, the rear end of the inner oil bag is clamped with the rear frame, the rear end of the outer oil bag is locked with the oil bag locking block, and a plurality of micropores for balancing the inner cavity and the external pressure are disposed around the front frame and the rear frame.