CN219917772U

CN219917772U - Lockable connector

Info

Publication number: CN219917772U
Application number: CN202320979515.5U
Authority: CN
Inventors: 赵善记
Original assignee: Dongguan Yuanjing Technology Co ltd
Current assignee: Dongguan Yuanjing Technology Co ltd
Priority date: 2023-04-26
Filing date: 2023-04-26
Publication date: 2023-10-27
Anticipated expiration: 2033-04-26

Abstract

The utility model belongs to the technical field of connectors, and discloses a lockable connector which comprises a socket assembly, a plug assembly and an elastic resetting piece, wherein the socket assembly comprises a socket shell provided with a clamping groove and a middle plate piece; the plug assembly comprises a main body mechanism, a front shell and a plug movable bolt, wherein the front shell and the plug movable bolt are sleeved outside the main body mechanism in a sliding manner, the main body mechanism comprises a locking elastic arm provided with a clamping piece, the clamping piece can be clamped in a clamping groove, the plug movable bolt in a locking state is abutted against the locking elastic arm to enable the clamping piece and the clamping groove to be locked, the plug movable bolt in a free state is far away from the locking elastic arm to enable the clamping piece to be separated from the clamping groove, the front shell can pull the plug movable bolt to slide to enable the plug movable bolt to be converted into the free state from the locking state, and the middle plate piece can push the plug movable bolt to slide to enable the plug movable bolt to be in the free state; the elastic reset piece always has the movement trend of pushing the movable plug pin to abut against the locking elastic arm. The lockable connector can realize plug locking, has simple unlocking and plug operation, and saves processing cost.

Description

Lockable connector

Technical Field

The present utility model relates to the field of connectors, and in particular, to lockable connectors.

Background

Along with the popularization of application of the internet, electronic devices such as intelligent home, internet of vehicles, intelligent wearable devices, industrial robots, medical devices, rail transit and the like are rapidly developed, and all the electronic devices need an external power supply or transmit signals, and the universal serial bus TYPE C cable connector is a common electric signal transmission structure. The universal serial bus TYPE C cable connector comprises a plug end and a socket end, wherein the plug end is spliced at the socket end, so that electric signal transmission is realized. In order to facilitate plugging, the industry standard usually designs the plugging force between the plug end and the socket end to be 8N-20N, but when the socket end is applied to a heavier mobile terminal or a cable connected with the plug end is longer and heavier, the plug end and the socket end are easy to separate due to the smaller designed plugging force, so that the power supply or signal transmission is interrupted, and the normal function of the equipment is seriously affected.

In order to solve the above problems, some existing cable connectors increase the extraction force by increasing the interference of the plug-in structure between the plug end and the socket end, which results in deformation and damage of the plug end caused by the larger interference, and reduces the service life of the cable connector. Or, some cable connectors lock the plug end and the socket end through complex locking structures, so that the processing cost is increased, the plug is inconvenient to insert and pull, and the use feeling of a user is reduced; moreover, the reliability of the lock connection between the plug terminal and the receptacle terminal is difficult to ensure.

Disclosure of Invention

The utility model aims to provide a lockable connector, which can realize the plug locking of a plug assembly and a socket assembly through a simple structure, avoid power or signal transmission caused by abnormal separation of the plug assembly and the socket assembly, and has the advantages of reliable locking, simple unlocking and plugging operation, processing cost saving and user use feeling improvement.

To achieve the purpose, the utility model adopts the following technical scheme:

providing a lockable connector comprising:

the socket assembly comprises a socket shell provided with a clamping groove and a middle plate arranged in the socket shell;

the plug assembly is used for connecting the socket assembly and comprises a main body mechanism, a front shell and a plug movable bolt, the front shell is sleeved outside the main body mechanism in a sliding mode, the plug movable bolt is provided with a locking elastic arm provided with a clamping piece, the clamping piece can be clamped in the clamping groove, the plug movable bolt can be connected to the main body mechanism in a sliding mode, the plug movable bolt is in a locking state and a free state, the plug movable bolt in the locking state abuts against the locking elastic arm to enable the clamping piece and the clamping groove to be locked, the plug movable bolt in the free state is away from the locking elastic arm to enable the clamping piece to be separated from the clamping groove, the front shell can pull the plug movable bolt to slide along a first direction to enable the plug movable bolt to be converted into the free state, and the middle plate can push the plug movable bolt to slide along the first direction to enable the plug movable bolt to be in the free state;

the elastic reset piece is arranged between the plug movable bolt and the main body mechanism, and the elastic reset piece always has a movement trend of pushing the plug movable bolt to be abutted against the locking elastic arm so as to enable the plug movable bolt to be converted into a locking state from a free state.

As a preferable structure of the utility model, the locking spring arm extends along a first direction, the tail end is a free end, the clamping piece is convexly arranged at the free end, and the clamping piece is convexly extended along a second direction.

As a preferable structure of the utility model, the main body mechanism further comprises a plug main body and a plug housing sleeved outside the plug main body, the plug main body is provided with a first chute extending along a first direction, the plug movable bolt is slidably connected to the first chute, the locking spring arm is arranged on the plug housing, and a notch of the first chute faces the locking spring arm, so that the plug movable bolt is arranged between the plug housing and the plug main body.

As a preferable structure of the utility model, the plug movable bolt comprises a locking part and a bending part which are connected with each other, wherein the locking part is used for abutting against the locking elastic arm, and the bending part is used for connecting one end of the elastic resetting piece.

As a preferable structure of the utility model, the main body mechanism further comprises an inner shell, wherein the inner shell is internally provided with a containing cavity with two through ends, the inner shell is sleeved on the plug outer shell, the side surface of the inner shell is provided with a second sliding groove communicated with the containing cavity, and the plug movable bolt can slide along the second sliding groove; the plug assembly further comprises a connecting cable and a PCBA board which are connected with each other, and the connecting cable and the PCBA board are clamped in the accommodating cavity and electrically connected with the plug main body.

As a preferable structure of the present utility model, the main body mechanism further includes a rear housing, one end of the inner housing is fixedly connected to the rear housing, the connecting cable penetrates through the rear housing to extend to the outer side of the rear housing, the elastic restoring member is a coil spring, the coil spring is sleeved outside the inner housing, and one end of the coil spring away from the bending portion abuts against the rear housing.

As a preferable configuration of the present utility model, the bending portion is provided with a positioning protrusion extending in the first direction, and the positioning protrusion is provided inside the coil spring.

As a preferable structure of the present utility model, an opening is provided at one end of the front case, a support end plate is provided at the other end of the front case, a through hole is provided on the support end plate, the main body mechanism is disposed in the front case through the opening, the locking spring arm and the locking portion pass through the through hole, so that the locking member is located at the outer side of the front case, the bending portion abuts against the inner side of the support end plate, and the front case can slide along a first direction, so that the support end plate pulls the bending portion away from the locking member.

As a preferable structure of the present utility model, a stopper is provided on the rear case, a stopper step is provided inside the front case, and the front case can slide back and forth in a first direction so that the support end plate abuts against the bent portion, and/or the stopper abuts against the stopper stand.

As a preferable structure of the utility model, a receiving space is provided between the middle plate and the socket housing, the middle plate is provided with a first guiding inclined plane, the plug movable bolt is provided with a second guiding inclined plane, one end of the first guiding inclined plane, which is close to the plug movable bolt, extends towards a direction away from the clamping groove, and the second guiding inclined plane can abut against the first guiding inclined plane and slide along the first guiding inclined plane, so that the locking spring arm and the plug movable bolt are received in the receiving space, and the clamping piece is clamped in the clamping groove.

The utility model has the beneficial effects that:

in the lockable connector provided by the utility model, in the initial state of a plug assembly, a plug movable bolt is abutted against a locking elastic arm, and at the moment, a socket assembly and the plug assembly are separated; when the plug assembly is inserted into the socket assembly, the middle plate member can push the plug movable bolt to slide along the first direction so that the plug movable bolt is in a free state, the clamping member can conveniently enter the clamping groove and be clamped, and the elastic reset member elastically compresses; under the effect of elasticity reset piece, elasticity reset piece promotes plug activity bolt butt lock and connects the spring arm, makes plug activity bolt change to the locking state from the free state, realizes the connection locking of plug subassembly and socket subassembly, under the effect of elasticity reset piece, plug activity bolt is exerted the constraint to lock and connect the spring arm along the second direction all the time for the joint piece can not follow the slippage in the clamping groove. When the plug assembly is pulled out of the socket assembly, the sliding front shell slides along the first direction to enable the plug movable bolt to be converted into a free state from a locking state, the clamping piece is convenient to slide out of the clamping groove, unlocking and pulling out of the plug assembly and the socket assembly are achieved, and under the action of the elastic reset piece, the plug movable bolt is abutted to the locking elastic arm. In the plug assembly and socket assembly inserting and pulling process, a matching structure with larger interference is not required to be arranged, so that deformation and damage of the plug assembly are avoided; the plug assembly and the socket assembly are reliably locked, the plug assembly cannot slip and separate, the continuity of power supply or signal transmission is guaranteed, the plug assembly and the socket assembly are convenient and quick to unlock, the structure is simple, and the processing cost is prevented from being increased.

Drawings

Fig. 1 is a schematic structural view of a lockable connector according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a plug assembly according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a socket assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic illustration showing a structure of a lockable connector according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a lockable connector according to an embodiment of the present utility model;

FIG. 6 is an enlarged partial schematic view of portion A of FIG. 5;

fig. 7 is a cross-sectional view of a receptacle assembly according to an embodiment of the present utility model;

fig. 8 is a second cross-sectional view of a receptacle assembly according to an embodiment of the present utility model;

fig. 9 is a schematic diagram of a process for pulling out a plug assembly from a socket assembly according to an embodiment of the present utility model;

fig. 10 is a schematic diagram II of a process for pulling out a plug assembly from a socket assembly according to an embodiment of the present utility model;

fig. 11 is a schematic diagram III of a process for extracting a socket assembly from a plug assembly according to an embodiment of the present utility model;

fig. 12 is a structural cross-sectional view of a socket assembly provided by an embodiment of the present utility model;

fig. 13 is a schematic view of a first process for inserting a plug assembly into a receptacle assembly according to an embodiment of the present utility model;

fig. 14 is a second schematic view illustrating a process of inserting the plug assembly into the socket assembly according to the embodiment of the present utility model.

In the figure:

1. a receptacle assembly; 11. a socket housing; 111. a clamping groove; 12. a middle plate member; 121. a first guide slope; 13. an accommodating space;

2. a plug assembly; 21. a main body mechanism; 211. locking the spring arm; 2111. a clamping piece; 212. a plug main body; 2121. a first chute; 213. a plug housing; 214. an inner case; 2141. a receiving chamber; 2142. a second chute; 215. a rear case; 2151. a limiting block; 22. a front shell; 221. an opening; 222. a support end plate; 2221. a through hole; 223. a limit step; 23. a plug movable bolt; 231. a locking part; 232. a bending part; 2321. positioning the bulge; 233. a second guide slope; 24. a connection cable; 25. PCBA board;

3. an elastic reset piece.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1-14, embodiments of the present utility model provide a lockable connector comprising a receptacle assembly 1 and a plug assembly 2. The receptacle assembly 1 includes a receptacle housing 11 provided with a card-fitting groove 111, and a middle plate member 12 provided in the receptacle housing 11, as shown in fig. 3. The plug assembly 2 is used for connecting the socket assembly 1, and the plug assembly 2 comprises a main body mechanism 21, a front shell 22 slidably sleeved outside the main body mechanism 21, and a plug movable bolt 23. As shown in fig. 2, the main body mechanism 21 includes a locking spring arm 211 provided with a locking member 2111, and the locking member 2111 can be locked in the locking groove 111 to connect the plug assembly 2 and the socket assembly 1, as shown in fig. 1.

The plug movable bolt 23 is slidably connected to the main body mechanism 21, the plug movable bolt 23 has a locking state and a free state, the plug movable bolt 23 in the locking state abuts against the locking spring arm 211 to lock the clamping piece 2111 and the clamping groove 111, the plug movable bolt 23 in the free state is far away from the locking spring arm 211 to disengage the clamping piece 2111 from the clamping groove 111, the front shell 22 can pull the plug movable bolt 23 to slide in a first direction to enable the plug movable bolt 23 to be converted into the free state from the locking state, the middle plate 12 can push the plug movable bolt 23 to slide in the first direction to enable the plug movable bolt 23 to be in the free state, for convenience of description, in the coordinate system shown in fig. 5, the X direction is the first direction, the Y direction is the second direction, and in the embodiment, the first direction and the second direction are perpendicular to each other. It will be appreciated that as shown in fig. 7, the plug movable pin 23 in the initial state is abutted against the lock engagement spring arm 211, and the socket assembly 1 and the plug assembly 2 are separated; the plug movable bolt 23 in the locking state abuts against the locking elastic arm 211 and applies constraint to the locking elastic arm 211 along the second direction, so that the clamping piece 2111 and the clamping groove 111 are locked, the clamping piece 2111 cannot slip out of the clamping groove 111, and the connection locking of the plug assembly 2 and the socket assembly 1 is realized, as shown in fig. 5 and 6; the plug movable bolt 23 in a free state is far away from the locking spring arm 211, the constraint applied to the locking spring arm 211 is released, and the clamping piece 2111 can slide out of the clamping groove 111, so that the plug assembly 2 and the socket assembly 1 are unlocked and pulled out, as shown in fig. 11.

The elastic reset piece 3 is arranged between the plug movable bolt 23 and the main body mechanism 21, and the elastic reset piece 3 always has a movement trend of pushing the plug movable bolt 23 to abut against the locking elastic arm 211 so as to enable the plug movable bolt 23 to be converted from a free state to a locking state.

Thus, in the initial state of the plug assembly 2, the plug movable pin 23 is abutted against the lock engagement spring arm 211, and the socket assembly 1 and the plug assembly 2 are separated; when the plug assembly 2 is inserted into the socket assembly 1, the middle plate member 12 can push the plug movable bolt 23 to slide along the first direction so as to enable the plug movable bolt 23 to be in a free state, at this time, the clamping member 2111 is convenient to enter the clamping groove 111 and be clamped, and the elastic reset member 3 generates elastic compression; then under the action of the elastic reset piece 3, the elastic reset piece 3 pushes the plug movable bolt 23 to abut against the locking elastic arm 211, so that the plug movable bolt 23 is converted from a free state to a locking state, the connection locking of the plug assembly 2 and the socket assembly 1 is realized, and under the action of the elastic reset piece 3, the plug movable bolt 23 always applies constraint to the locking elastic arm 211 along the second direction, so that the clamping piece 2111 cannot slip from the clamping groove 111. When the plug assembly 2 is pulled out of the socket assembly 1, the front sliding shell 22 pulls the plug movable bolt 23 to slide along the first direction so that the plug movable bolt 23 is converted from the locking state to the free state, at this time, the clamping piece 2111 is convenient to slide out of the clamping groove 111, unlocking and pulling out of the plug assembly 2 and the socket assembly 1 are achieved, and finally, the plug movable bolt 23 abuts against the locking elastic arm 211 under the action of the elastic reset piece 3. Therefore, in the plug assembly 2 and the socket assembly 1 plugging and unplugging process, a matching structure with larger interference is not required to be arranged, so that the deformation and damage of the plug assembly 2 are avoided; the plug assembly 2 and the socket assembly 1 are reliably locked, the plug assembly 2 cannot slide off and separate, the continuity of power supply or signal transmission is guaranteed, the plug assembly 2 and the socket assembly 1 are convenient and quick to unlock, the structure is simple, and the processing cost is prevented from being increased.

Furthermore, two locking spring arms 211 are provided, the two locking spring arms 211 are respectively arranged at two sides of the main body mechanism 21, corresponding plug movable bolts 23 are provided, and two clamping grooves 111 are respectively formed at two sides of the socket shell 11, so that the plug assembly 2 and the socket assembly 1 are connected more reliably. Optionally, the front shell 22 is provided with a protrusion, so that the pulling friction force is increased, and slipping is avoided; the front shell 22 is also provided with arrow indication marks for prompting the user.

Preferably, the locking spring arm 211 extends along the first direction, and the end is a free end, and the locking spring arm 211 has a certain elastic deformation capability. The clamping member 2111 is convexly arranged at the free end, and the clamping member 2111 is convexly extended along the second direction. The clamping member 2111 and the locking spring arm 211 are perpendicular to each other, so that locking is more reliable.

Preferably, the main body mechanism 21 further includes a plug main body 212 and a plug housing 213 sleeved outside the plug main body 212, a first sliding groove 2121 extending along a first direction is provided on the plug main body 212, the plug movable bolt 23 is slidably connected to the first sliding groove 2121, and the first sliding groove 2121 provides guidance for the plug movable bolt 23, so that the plug movable bolt 23 cannot deflect to generate jamming. The latch spring arm 211 is disposed on the plug housing 213, and the notch of the first sliding groove 2121 faces the latch spring arm 211, so that the plug movable bolt 23 is disposed between the plug housing 213 and the plug main body 212, so that the latch spring arm 211 can be directly restrained in the second direction.

Preferably, the plug movable pin 23 includes a locking portion 231 and a bending portion 232 connected to each other, and the locking portion 231 and the bending portion 232 are connected in an L-shape. The locking part 231 is used for abutting against the locking elastic arm 211, and the bending part 232 is used for connecting one end of the elastic resetting piece 3 and receiving the acting force of the elastic resetting piece 3.

Preferably, the body mechanism 21 further includes an inner housing 214; as a supporting structure, the inner housing 214 has a receiving cavity 2141 with two ends penetrating, the inner housing 214 is sleeved on the plug outer housing 213, a second sliding groove 2142 communicating with the receiving cavity 2141 is provided on a side surface of the inner housing 214, and the plug movable bolt 23 can slide along the second sliding groove 2142, so as to increase guiding constraint on the plug movable bolt 23. The plug assembly 2 further includes an interconnecting connection cable 24 and a PCBA board 25, the connection cable 24 and PCBA board 25 being snap-fit within the receiving cavity 2141 and electrically connected to the plug body 212. The specific structures of the connection cable 24 and the PCBA board 25 are not described in detail in this embodiment.

As a preferred solution, the main body mechanism 21 further includes a rear housing 215, one end of the inner housing 214 is fixedly connected to the rear housing 215, and the connecting cable 24 penetrates through the rear housing 215 to extend to the outer side of the rear housing 215, the elastic restoring member 3 is a coil spring, the coil spring is sleeved outside the inner housing 214, and one end of the coil spring away from the bending portion 232 abuts against the rear housing 215. The inner housing 214 provides a guiding stop for the coil spring, avoiding coil spring deflection. In other embodiments, the elastic restoring member 3 may also be a structure with elastic deformation capability, such as a reed, and is not limited to the drawings in this embodiment.

Preferably, the bending portion 232 is provided with a positioning protrusion 2321, as shown in fig. 4 to 6, the positioning protrusion 2321 extends along the first direction, and the positioning protrusion 2321 is disposed on the inner side of the coil spring. The sliding track of the plug movable pin 23 can be further limited by the cooperation of the positioning boss 2321 and the coil spring, so that the bending part 232 of the plug movable pin 23 in a free state is prevented from being deflected and warped.

Preferably, the front case 22 is provided at one end with an opening 221. The other end of the front case 22 has a support end plate 222, and the support end plate 222 is provided with a through hole 2221, as shown in fig. 5 and 6. The main body mechanism 21 is disposed in the front shell 22 through the opening 221, the locking spring arm 211 and the locking portion 231 pass through the through hole 2221, so that the clamping member 2111 is located at the outer side of the front shell 22, the bending portion 232 abuts against the inner side of the support end plate 222, and the front shell 22 can slide along the first direction, so that the support end plate 222 pulls the bending portion 232 away from the clamping member 2111. When it is desired to withdraw the latch-connected plug assembly 2 from the receptacle assembly 1, the front housing 22 is pulled in a first direction toward an end remote from the receptacle assembly 1, as shown in fig. 9; the supporting end plate 222 of the front shell 22 pulls the bending part 232 away from the clamping piece 2111 to be converted into a free state, as shown in fig. 10; until the plug assembly 2 and the receptacle assembly 1 are separated as shown in fig. 11. In this process, the locking spring arm 211 is fixed on the main body mechanism 21, so that no sliding occurs, and quick unlocking is ensured.

Preferably, the rear case 215 is provided with a stopper 2151, and as shown in fig. 8, the front case 22 is provided with a stopper step 223 inside. The front case 22 can slide back and forth in the first direction, so that the support end plate 222 abuts against the bent portion 232 and/or the stopper 2151 abuts against the stopper step 223. The limiting step 223 and the supporting end plate 222 limit the sliding of the front case 22 from both ends, and the front case 22 can be prevented from being separated from the rear case 215 upward by the cooperation of the limiting block 2151 and the limiting step 223.

Preferably, a receiving space 13 is provided between the middle plate member 12 and the socket housing 11, as shown in fig. 12. The middle plate 12 is provided with a first guiding inclined plane 121, the plug movable bolt 23 is provided with a second guiding inclined plane 233, one end of the first guiding inclined plane 121, which is close to the plug movable bolt 23, extends towards a direction away from the clamping groove 111, the second guiding inclined plane 233 can be abutted against the first guiding inclined plane 121 and slide along the first guiding inclined plane 121, so that the locking elastic arm 211 and the plug movable bolt 23 are accommodated in the accommodating space 13, and the clamping piece 2111 is clamped with the clamping groove 111. It will be appreciated that when the plug assembly 2 is plugged into the receptacle assembly 1, as shown in fig. 13, the latch spring arms 211 and the plug movable pins 23 first enter the entrance of the accommodating space 13; then, the plug assembly 2 is continuously pushed, and the plug movable bolt 23 is pushed by the middle plate member 12 under the guidance of the second guiding inclined plane 233, and the opposite movement trend of the locking spring arm 211 occurs, as shown in fig. 14, so that the plug movable bolt is converted into a free state, and the clamping member 2111 is conveniently clamped in the clamping groove 111. Finally, under the action of the elastic reset element 3, the second guiding inclined plane 233 slides to be separated from the first guiding inclined plane 121, the locking spring arm 211 and the plug movable bolt 23 are both accommodated in the accommodating space 13, and the plug movable bolt 23 is converted into a locking state.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. A lockable connector, comprising:

a socket assembly (1), wherein the socket assembly (1) comprises a socket shell (11) provided with a clamping groove (111), and a middle plate (12) arranged in the socket shell (11);

a plug assembly (2) for connecting to a socket assembly (1), the plug assembly (2) comprising a main body mechanism (21), a front shell (22) slidably sleeved outside the main body mechanism (21), and a plug movable bolt (23), the main body mechanism (21) comprising a locking spring arm (211) provided with a locking member (2111), the locking member (2111) being capable of being locked into the locking groove (111), the plug movable bolt (23) being slidably connected to the main body mechanism (21), the plug movable bolt (23) having a locked state and a free state, the plug movable bolt (23) in the locked state abutting the locking spring arm (211) to lock the locking member (2111) and the locking groove (111), the plug movable bolt (23) in the free state being remote from the locking spring arm (211) to disengage the locking member (2111) from the locking groove (111), the front shell (22) being capable of pulling the plug movable bolt (23) in the free state along the first direction to enable the plug movable bolt (23) to slide along the first direction from the locked state to the plug movable bolt (23;

the elastic reset piece (3) is arranged between the plug movable bolt (23) and the main body mechanism (21), and the elastic reset piece (3) always has a movement trend of pushing the plug movable bolt (23) to abut against the locking elastic arm (211) so as to enable the plug movable bolt (23) to be converted into a locking state from a free state.

2. The lockable connector according to claim 1, characterized in that the locking spring arm (211) extends in a first direction and terminates in a free end, the clamping member (2111) being arranged protruding at the free end, the clamping member (2111) protruding in a second direction.

3. The lockable connector according to claim 1, characterized in that the body mechanism (21) further comprises a plug body (212) and a plug housing (213) sleeved outside the plug body (212), the plug body (212) is provided with a first sliding groove (2121) extending along a first direction, the plug movable bolt (23) is slidably connected to the first sliding groove (2121), the locking spring arm (211) is arranged on the plug housing (213), and a notch of the first sliding groove (2121) faces the locking spring arm (211) so that the plug movable bolt (23) is arranged between the plug housing (213) and the plug body (212).

4. A lockable connector according to claim 3, characterized in that the plug movable pin (23) comprises a locking part (231) and a bending part (232) connected to each other, the locking part (231) being adapted to abut the locking spring arm (211), the bending part (232) being adapted to connect one end of the elastic return member (3).

5. The lockable connector according to claim 4, characterized in that the main body mechanism (21) further comprises an inner housing (214), the inner housing (214) is provided with a receiving cavity (2141) with two ends penetrating, the inner housing (214) is sleeved on the plug outer housing (213), a second sliding groove (2142) communicated with the receiving cavity (2141) is arranged on the side surface of the inner housing (214), and the plug movable bolt (23) can slide along the second sliding groove (2142); the plug assembly (2) further comprises a connecting cable (24) and a PCBA board (25) which are connected with each other, and the connecting cable (24) and the PCBA board (25) are clamped in the accommodating cavity (2141) and are electrically connected with the plug main body (212).

6. The lockable connector according to claim 5, characterized in that the main body mechanism (21) further comprises a rear housing (215), one end of the inner housing (214) is fixedly connected to the rear housing (215), the connecting cable (24) penetrates the rear housing (215) to extend to the outer side of the rear housing (215), the elastic restoring member (3) is a coil spring, the coil spring is sleeved outside the inner housing (214), and one end of the coil spring, which is far away from the bending portion (232), is abutted against the rear housing (215).

7. The lockable connector according to claim 6, characterized in that the bending part (232) is provided with a positioning protrusion (2321), the positioning protrusion (2321) extending in a first direction, the positioning protrusion (2321) being arranged inside the helical spring.

8. The lockable connector according to claim 6, characterized in that the front shell (22) is provided with an opening (221) at one end and a support end plate (222) at the other end, the support end plate (222) is provided with a through hole (2221), the main body mechanism (21) is arranged in the front shell (22) through the opening (221), the locking spring arm (211) and the locking part (231) are arranged in the through hole (2221) in a penetrating manner, so that the clamping piece (2111) is arranged on the outer side of the front shell (22), the bending part (232) is abutted against the inner side of the support end plate (222), and the front shell (22) can slide along the first direction, so that the support end plate (222) pulls the bending part (232) away from the clamping piece (2111).

9. Lockable connector according to claim 8, characterized in that a stop block (2151) is provided on the rear housing (215), a stop step (223) is provided inside the front housing (22), the front housing (22) being reciprocally slidable in a first direction to bring the support end plate (222) into abutment with the bent portion (232) and/or the stop block (2151) into abutment with the stop step (223).

10. Lockable connector according to any of claims 1-9, characterized in that the middle plate member (12) and the socket housing (11) have a receiving space (13) between them, the middle plate member (12) is provided with a first guiding ramp (121), the plug movable pin (23) is provided with a second guiding ramp (233), the first guiding ramp (121) extends towards a direction away from the clamping groove (111) near one end of the plug movable pin (23), the second guiding ramp (233) can abut against the first guiding ramp (121) and slide along the first guiding ramp (121) so that the locking spring arm (211) and the plug movable pin (23) are received in the receiving space (13), and the clamping member (2111) is clamped in the clamping groove (111).