阅读说明：本技术 连接器及连接器壳体 (Connector and connector housing ) 是由 姚文浩 韩云钊 王旭涛 鲁志远 胡凯 刘乃常 徐骏 郑剑峰 李卫可 于 2020-11-30 设计创作，主要内容包括：本发明提供了一种连接器及连接器壳体,能够解决现有技术中连接器拆卸难度大、操作不方便的问题。连接器壳体,包括外壳,前端为插接端；压帽套设在外壳的外周面上；外壳上具有对压帽在向前的方向上进行挡止的挡止结构,压帽内侧设有内台阶；外壳上还在挡止结构后侧安装有挡圈；弹簧套设在外壳外周且位于压帽内侧,两端分别作用于内台阶和挡圈,进而将压帽压紧在所述挡止结构上；安装槽开设于外壳外周面上,向插接端延伸；挡圈的内周面上设有径向凸块,在挡圈从后向前套装与外壳上时,安装槽引导挡圈移动且压缩弹簧；安装槽的尾部连有轴向挡槽,轴向挡槽具有对径向凸块进行挡止的挡止面,而防止挡圈在弹簧的弹力下背向插接端移动。(The invention provides a connector and a connector shell, which can solve the problems of high difficulty in dismounting and inconvenience in operation of the connector in the prior art. The connector shell comprises a shell, and the front end of the shell is a plug-in end; the pressing cap is sleeved on the peripheral surface of the shell; the shell is provided with a blocking structure for blocking the pressing cap in the forward direction, and the inner side of the pressing cap is provided with an inner step; the shell is also provided with a check ring at the rear side of the stop structure; the spring is sleeved on the periphery of the shell and positioned on the inner side of the pressing cap, and two ends of the spring respectively act on the inner step and the retainer ring so as to tightly press the pressing cap on the stopping structure; the mounting groove is arranged on the outer peripheral surface of the shell and extends towards the insertion end; the inner circumferential surface of the retainer ring is provided with a radial convex block, and when the retainer ring is sleeved on the shell from back to front, the mounting groove guides the retainer ring to move and compresses the spring; the tail part of the mounting groove is connected with an axial stop groove, and the axial stop groove is provided with a stop surface for stopping the radial convex block so as to prevent the check ring from moving back to the insertion end under the elasticity of the spring.)

1. A connector housing comprising:

the front end of the shell (11) is a splicing end;

the pressing cap (12) is sleeved on the peripheral surface of the shell (11);

the shell (11) is provided with a stopping structure for stopping the pressing cap (12) in the forward direction, and the inner side of the pressing cap (12) is provided with an inner step (122);

a check ring (14) is also arranged on the shell (11) at the rear side of the stop structure;

the spring is sleeved on the periphery of the shell (11) and is positioned on the inner side of the pressing cap (12), and two ends of the spring respectively act on the inner step (122) and the retainer ring (14) so as to tightly press the pressing cap (12) on the stop structure;

the method is characterized in that:

the mounting groove (111) is arranged on the outer peripheral surface of the shell (11) and extends towards the insertion end;

the inner circumferential surface of the retainer ring (14) is provided with a radial convex block (142), and when the retainer ring (14) is sleeved on the shell (11) from back to front, the mounting groove (111) guides the retainer ring (14) to move and compresses the spring (15);

the tail part of the mounting groove (111) is connected with an axial retaining groove (114), and the axial retaining groove (114) is provided with a retaining surface for retaining the radial convex block (142) so as to prevent the retainer ring (14) from moving back to the insertion end under the elastic force of the spring (15).

2. The connector housing of claim 1, wherein: the axial retaining groove (114) extends along the axial direction, and the extending direction is perpendicular to the axis of the shell (11).

3. The connector housing of claim 1, wherein: the axial retaining groove (114) extends back to the insertion end and is connected with the mounting groove (111) to form a hook shape.

4. The connector housing of claim 3, wherein: the mounting groove (111) comprises an axial section (1111) extending along the axial direction of the outer shell (11), and a circumferential section (1112) connected with the axial section (1111) and extending along the circumferential direction of the outer shell (11); the axial retaining groove (114) is communicated with one end of the circumferential section (1112) facing away from the axial section (1111) and extends away from the inserting end.

5. The connector housing of claim 4, wherein: the groove wall of the circumferential section (1112) on the side back to the plugging end extends to the axial blocking groove (114) along the direction back to the plugging end in an inclined manner.

6. The connector housing according to any one of claims 1 to 5, wherein: the end surface or the circumferential surface of the retainer ring (14) is provided with a convex-concave structure which is matched with a special tool so as to drive the retainer ring (14) to translate or rotate through the matching of the special tool and the convex-concave structure.

7. The connector comprises a connector shell and a connector inner core installed in the connector shell, and is characterized in that: the connector housing according to any one of claims 1 to 6.

Technical Field

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

Background

The optical fiber connector is used for precisely butting two optical fiber end faces to be butted together so as to enable light output by a transmitting optical fiber to be coupled into a receiving optical fiber to the maximum extent. For the stability of guaranteeing to connect, can use threaded connection when most fiber connector connects, but complex operation is not convenient, and consequently the technical staff has proposed the fiber connector who uses plug-in connection, and the operation is fairly simple, just can realize two fiber connector's combination, separation through following signal transmission direction plug action. For example, patent document No. CN208334712U, entitled 2019.01.04 discloses an in-line optical fiber connector, which includes a plug and a socket, the plug includes a plug housing, a connection nut, a spring, a clamping ring and a snap spring, and the socket includes a socket housing, a corrugated spring and a plurality of ceramic balls.

Specifically, the plug shell is a cylinder with a cavity, an arc-shaped groove and a first annular boss are arranged on the periphery of the head end of the plug shell, the connecting nut is sleeved on the periphery of the plug shell, a second annular boss and an inclined plane are arranged on the inner peripheral surface of the connecting nut, the first annular boss is abutted to the second annular boss, a spring is arranged in the cavity between the tail end of the connecting nut and the tail end of the plug shell, a groove is arranged on the periphery of the tail end of the plug shell, a clamp spring is arranged in the groove, a pressing ring is arranged between the spring and the clamp spring, and the clamp spring is matched with the pressing ring to. The tail end of the socket shell is provided with a plurality of through holes, and the ceramic balls are riveted in the through holes. When the plug is inserted into the socket, the ceramic ball in the socket is propped by the connecting nut in the plug under the action of the spring in the plug and is clamped in the arc-shaped groove of the plug shell, so that the locking of the connector is realized. When the plug is separated from the socket, a pulling force is applied to the connecting nut, the connecting nut retreats, the ceramic ball in the socket loses support and is extruded by the inclined surface on the plug shell, the arc-shaped groove retreats, the locking function fails, and the connector is separated.

Connecting nut in the plug is used for realizing the locking with the ceramic ball cooperation in the socket, and the spring makes connecting nut compress tightly ceramic ball on radial direction for connecting nut provides the effort, and operating personnel comes unblock plug and socket through the compression to the spring and the extrusion to ceramic ball, simple and efficient, but its structural some problems that still exist: the pressing ring is provided with an inner recess opposite to the groove on the plug, and the inner recess on the pressing ring and the groove on the plug jointly enclose an installation cavity for installing the clamp spring, so that the pressing ring and the plug are required to be accurately positioned in order to ensure that the clamp spring can be smoothly installed on the plug. When dismantling this connector, operating personnel need take out the jump ring earlier, and the jump ring receives the outside effort of spring and clamping ring again, therefore operating personnel must press the clamping ring inwards earlier and just can take out the jump ring, and at this in-process, both need use one set of instrument to come inwards to withstand the clamping ring, need one set of instrument again to take out the jump ring, carries out two steps of operations simultaneously in narrow and small space, and it is big to dismantle the degree of difficulty, and complex operation is inconvenient.

Disclosure of Invention

The invention aims to provide a connector shell which can solve the problems of high difficulty in dismounting and inconvenience in operation of a connector in the prior art;

another object of the present invention is to provide a connector using the connector housing, which has the advantages of easy assembly and disassembly and simple operation.

In order to achieve the purpose, the connector shell adopts the following technical scheme:

a connector housing comprising:

the front end of the shell is a splicing end;

the pressing cap is sleeved on the peripheral surface of the shell;

the shell is provided with a blocking structure for blocking the pressing cap in the forward direction, and the inner side of the pressing cap is provided with an inner step;

the shell is also provided with a check ring at the rear side of the stop structure;

the spring is sleeved on the periphery of the shell and positioned on the inner side of the pressing cap, and two ends of the spring respectively act on the inner step and the retainer ring so as to tightly press the pressing cap on the stopping structure;

the mounting groove is formed on the outer peripheral surface of the shell and extends towards the insertion end;

the inner circumferential surface of the retainer ring is provided with a radial convex block, and when the retainer ring is sleeved on the shell from back to front, the mounting groove guides the retainer ring to move and compresses the spring;

the tail part of the mounting groove is connected with an axial stop groove, and the axial stop groove is provided with a stop surface for stopping the radial convex block so as to prevent the check ring from moving back to the insertion end under the elasticity of the spring.

The beneficial effects are that: the shell is provided with a mounting groove and an axial retaining groove, the retainer ring is provided with a radial convex block which is matched with the mounting groove and the axial retaining groove in a guiding way, and the retainer ring can move forwards or backwards along the guiding movement path of the radial convex block, the mounting groove and the axial retaining groove. The retaining ring can make the spring be in the precompression state to inside roof pressure spring at the motion in-process, and the cell wall in mounting groove and axial retaining groove can restrict the axial motion of retaining ring again, fix a position the retaining ring under the shore of spring, operating personnel just can accomplish the precompression to the spring in the same direction as taking when installing the retaining ring, and the retaining ring also can keep fixed for the casing after the installation is accomplished, come to carry out stable compression to the spring, when dismantling the connector, only need promote and/or rotate the retaining ring and withdraw from the axial retaining groove, the retaining ring can withdraw from the mounting groove under the support of spring promptly. The operator can realize the dismouting of connector housing through top push and rotation retaining ring, whole installation and dismantlement process, easy operation, convenient, efficient.

Further, the axial retaining groove extends along the axial direction, and the extending direction is perpendicular to the axis of the shell.

The beneficial effects are that: the axial retaining groove extends along the axial direction, the extending direction is perpendicular to the axis of the shell, when an operator locks the retaining ring in the outer circumferential direction, the operator only needs to rotate the retaining ring to enable the retaining ring to rotate along the axial retaining groove, and the spring can tightly push the retaining ring against the groove wall, namely the retaining surface, of the axial retaining groove, which is opposite to the insertion end, so that the axial positioning of the retaining ring is realized, and the operation is simple.

Furthermore, the axial blocking groove extends back to the insertion end and is connected with the mounting groove to form a hook shape.

The beneficial effects are that: the groove body matched with the radial convex block on the check ring is in a hook shape, the axial blocking groove not only can limit the check ring to move along the axial direction, but also can limit the check ring to rotate along the circumferential direction and not to enter the installation groove, the check ring is guaranteed to be still in a stable locking state when the connector is in vibration, the problem that the connector is accidentally disengaged due to vibration and mistaken unlocking is avoided, and the stability of the connector in use is guaranteed.

Furthermore, the mounting groove comprises an axial section extending along the axial direction of the shell and a circumferential section connected with the axial section and extending along the circumferential direction of the shell; the axial blocking groove is communicated with one end of the circumferential section, which is back to the axial section, and extends back to the insertion end.

The beneficial effects are that: the mounting groove comprises a circumferential section and an axial section, the mounting groove is L-shaped as a whole, and the retaining ring has small moving resistance when moving in the L-shaped groove body, so that the mounting groove is convenient to disassemble and assemble; the axial blocking groove extends towards the insertion end, and the radial convex block on the retaining ring can automatically fall into the axial blocking groove under the action of the spring abutting after moving to the intersection of the circumferential section and the axial blocking groove, so that the operation is more convenient.

Furthermore, the groove wall of one side of the circumferential section back to the insertion end extends to the axial blocking groove along the direction back to the insertion end in an inclined mode.

The beneficial effects are that: the inclined groove wall in the circumferential section can be matched with the radial convex block on the retainer ring, and the retainer ring is guided to slide into the axial retaining groove when pushed by the spring, so that the operation is simple and labor-saving.

Furthermore, the end surface or the circumferential surface of the retainer ring is provided with a convex-concave structure which is matched with a special tool so as to drive the retainer ring to translate or rotate by matching the special tool with the convex-concave structure.

The beneficial effects are that: in the convex-concave structure of the retainer ring, an operator can use a special tool to be inserted into or stop and matched with the convex-concave structure, and the special tool is driven to act, so that the action of driving the retainer ring is realized, and the problem of difficult operation caused by small operation space can be effectively solved.

In order to achieve the purpose, the connector adopts the following technical scheme:

a connector including a connector housing and a connector core mounted in the connector housing;

a connector housing comprising:

the front end of the shell is a splicing end;

the pressing cap is sleeved on the peripheral surface of the shell;

the shell is provided with a blocking structure for blocking the pressing cap in the forward direction, and the inner side of the pressing cap is provided with an inner step;

the shell is also provided with a check ring at the rear side of the stop structure;

the spring is sleeved on the periphery of the shell and positioned on the inner side of the pressing cap, and two ends of the spring respectively act on the inner step and the retainer ring so as to tightly press the pressing cap on the stopping structure;

the mounting groove is formed on the outer peripheral surface of the shell and extends towards the insertion end;

the inner circumferential surface of the retainer ring is provided with a radial convex block, and when the retainer ring is sleeved on the shell from back to front, the mounting groove guides the retainer ring to move and compresses the spring;

the tail part of the mounting groove is connected with an axial stop groove, and the axial stop groove is provided with a stop surface for stopping the radial convex block so as to prevent the check ring from moving back to the insertion end under the elasticity of the spring.

The beneficial effects are that: the shell is provided with a mounting groove and an axial retaining groove, the retainer ring is provided with a radial convex block which is matched with the mounting groove and the axial retaining groove in a guiding way, and the retainer ring can move forwards or backwards along the guiding movement path of the radial convex block, the mounting groove and the axial retaining groove. The retaining ring can make the spring be in the precompression state to inside roof pressure spring at the motion in-process, and the cell wall in mounting groove and axial retaining groove can restrict the axial motion of retaining ring again, fix a position the retaining ring under the shore of spring, operating personnel just can accomplish the precompression to the spring in the same direction as taking when installing the retaining ring, and the retaining ring also can keep fixed for the casing after the installation is accomplished, come to carry out stable compression to the spring, when dismantling the connector, only need promote and/or rotate the retaining ring and withdraw from the axial retaining groove, the retaining ring can withdraw from the mounting groove under the support of spring promptly. The dismouting of connector housing can be realized through the top to operating personnel with rotate the retaining ring, whole installation and dismantlement process, easy operation, convenient, efficient, labour saving and time saving can improve the economic benefits who uses this connector.

Further, the axial retaining groove extends along the axial direction, and the extending direction is perpendicular to the axis of the shell.

The beneficial effects are that: the axial retaining groove extends along the axial direction, the extending direction is perpendicular to the axis of the shell, when an operator locks the retaining ring in the outer circumferential direction, the operator only needs to rotate the retaining ring to enable the retaining ring to rotate along the axial retaining groove, and the spring can tightly push the retaining ring against the groove wall, namely the retaining surface, of the axial retaining groove, which is opposite to the insertion end, so that the axial positioning of the retaining ring is realized, and the operation is simple.

Furthermore, the axial blocking groove extends back to the insertion end and is connected with the mounting groove to form a hook shape.

The beneficial effects are that: the groove body matched with the radial convex block on the check ring is in a hook shape, the axial blocking groove not only can limit the check ring to move along the axial direction, but also can limit the check ring to rotate along the circumferential direction and not to enter the installation groove, the check ring is guaranteed to be still in a stable locking state when the connector is in vibration, the problem that the connector is accidentally disengaged due to vibration and mistaken unlocking is avoided, and the stability of the connector in use is guaranteed.

Furthermore, the mounting groove comprises an axial section extending along the axial direction of the shell and a circumferential section connected with the axial section and extending along the circumferential direction of the shell; the axial blocking groove is communicated with one end of the circumferential section, which is back to the axial section, and extends back to the insertion end.

The beneficial effects are that: the mounting groove comprises a circumferential section and an axial section, the mounting groove is L-shaped as a whole, and the retaining ring has small moving resistance when moving in the L-shaped groove body, so that the mounting groove is convenient to disassemble and assemble; the axial blocking groove extends towards the insertion end, and the radial convex block on the retaining ring can automatically fall into the axial blocking groove under the action of the spring abutting after moving to the intersection of the circumferential section and the axial blocking groove, so that the operation is more convenient.

Furthermore, the groove wall of one side of the circumferential section back to the insertion end extends to the axial blocking groove along the direction back to the insertion end in an inclined mode.

The beneficial effects are that: the inclined groove wall in the circumferential section can be matched with the radial convex block on the retainer ring, and the retainer ring is guided to slide into the axial retaining groove when pushed by the spring, so that the operation is simple and labor-saving.

Furthermore, the end surface or the circumferential surface of the retainer ring is provided with a convex-concave structure which is matched with a special tool so as to drive the retainer ring to translate or rotate by matching the special tool with the convex-concave structure.

The beneficial effects are that: in the convex-concave structure of the retainer ring, an operator can use a special tool to be inserted into or stop and matched with the convex-concave structure, and the special tool is driven to act, so that the action of driving the retainer ring is realized, and the problem of difficult operation caused by small operation space can be effectively solved.

Drawings

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

FIG. 2 is a schematic view of the housing of embodiment 1 of the connector of the present invention;

FIG. 3 is a schematic view of a retainer ring of embodiment 1 of the connector of the present invention in an initial position;

FIG. 4 is a schematic view of the retainer ring of embodiment 1 of the connector of the present invention in place;

in the figure:

10-a connector; 11-a housing; 111-mounting grooves; 1111-axial segment; 1112-a circumferential segment;

112-ring groove; 113-a baffle table; 114-axial grooves; 12-pressing the cap; 121-a crimping section; 122-inner step; 13-an optical cable;

14-a retainer ring; 141-a retainer groove; 142-a radial projection; 15-spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The features and properties of the connector and the connector housing according to the present invention will be described in further detail with reference to the following embodiments.

Embodiment 1 of the connector in the present invention: as shown in fig. 1 to 4, the connector 10 is connected to the head of the optical cable 13 for connecting with an adapter connector to conduct optical signals in the two connectors. The connector 10 generally includes a connector housing and an optical fiber core mounted within the connector housing. In other embodiments, the connector may be other electrical, signal, fluid, etc. connectors, and a connector core corresponding to the connector is disposed in the connector housing.

The connector housing mainly includes a cylindrical housing 11 extending in the left-right direction in the drawing, and a pressing cap 12 disposed on the outer peripheral surface of the housing 11, a stop 113 serving as a stop structure is disposed on the outer peripheral surface of the housing 11, an inner step 122 is disposed on the inner surface of the pressing cap 12, and one end surface of the inner step 122 is in stop fit with the stop 113, so as to limit the pressing cap 12 from moving toward the front end, which is the plugging end of the connector 10, in the axial direction, where it is noted that the plugging end of the connector 10 is the left end shown in the drawing.

The outer peripheral face of one end, used for being plugged with the adapter connector, of the shell 11 is provided with a ring groove 112, locking members such as clamping claws, steel balls or ceramic balls are arranged in the adapter connector, the locking members can be clamped into the ring groove 112 of the connector 10 when the two connectors are plugged, adaptively, the pressing cap 12 is provided with a pressing section 121 corresponding to the ring groove 112 in the axial direction, the locking members on the adapter connector can be pressed in the ring groove 112, and locking of the two connectors is achieved.

The pressing cap 12 and the housing 11 have a space therebetween, and a spring 15 is arranged in the space, and the spring 15 can provide an elastic force for the pressing cap 12 towards the plugging end of the connector 10 in the connector 10, so that the pressing section 121 on the pressing cap 12 can press the locking piece on the adaptive connector.

In order for the spring 15 to provide a force to the cap 12 toward the insertion end, i.e., to the left, the spring 15 needs to be pre-compressed during assembly, and therefore a retainer 14 is provided on the housing 11 for retaining engagement with the right end of the spring 15 to pre-compress the spring 15.

As shown in fig. 2, a radial protrusion 142 is disposed on an inner circumferential surface of the retainer ring 14, a mounting groove 111 that is guided and engaged with the radial protrusion 142 is disposed on a portion of an outer circumferential surface of the housing 11 covered by the spring 15, and an axial retaining groove 114 is further disposed at a tail portion of the mounting groove 111, and the mounting groove 111 is connected to the axial retaining groove 114 in a hook shape, or a "J" shape.

The mounting groove 111 includes an axial section 1111 extending axially along the housing 11, a circumferential section 1112 connected to the axial section 1111 and extending axially along the housing 11, and the axial blocking groove 114 is connected to an end of the circumferential section 1112 facing away from the axial section 1111 and extending away from the insertion end. The groove wall of the circumferential segment 1112 on the side facing away from the plugging direction is obliquely arranged, so that the groove width of the circumferential segment 1112 is gradually increased along the direction from the axial segment 1111 to the circumferential segment 1112.

Suitably, the end surface of the retainer ring 14 facing away from the inserting direction is provided with a retainer ring groove 141 as a convex-concave structure, the retainer ring groove 141 is used for matching with a tool, and the groove wall of the retainer ring groove 141 is matched with the tool inserted into the retainer ring groove 141 in a stopping manner, so that the retainer ring 14 can be driven to move when the tool rotates around the housing 11. In other embodiments, a through hole, i.e., a retainer ring hole, may be provided in the retainer ring 14, and an operator may push the wall of the retainer ring hole with a tool to drive the retainer ring 14 to move.

As shown in fig. 3 and 4, when assembling the connector 10 of the present invention, an operator firstly fits the pressing cap 12 on the housing 11, and the front end surface of the inner step 122 at the front end of the pressing cap 12 is in stop fit with the stop 113 on the housing 11, at this time, the pressing cap 12 cannot move continuously along the direction from right to left. Since there is a space between the inner peripheral surface of the pressing cap 12 and the outer peripheral surface of the housing 11, the spring 15 is then fitted over the housing 11, and the spring 15 is located in the space enclosed by the housing 11 and the pressing cap 12.

The retainer ring 14 is fitted over the housing 11, and the radial projections 142 of the retainer ring 14 are aligned with the openings of the axial sections 1111 of the mounting grooves 111 of the housing 11, so that the retainer ring 14 is moved axially along the housing 11 by the guiding engagement of the radial projections 142 and the axial sections 1111. Because the mounting groove 111 is covered by the pressing cap 12, the operating space between the pressing cap 12 and the housing 11 is small, the operator can use a special tool to clip into the retainer groove 141 of the retainer ring 14, the special tool can be matched with the retainer groove 141 in an abutting manner, and the operator can operate the tool in a space other than the space between the pressing cap 12 and the housing 11 to drive the retainer ring 14 to move.

The retainer ring 14 moves along the axial section 1111 first, gradually approaches the spring 15 and presses the spring 15, so that the spring 15 is in a compressed state, the retainer ring 14 then rotates on the housing 11 along the circumferential section 1112, and finally falls into the axial retaining groove 114, under the action of the elastic force of the spring 15, the retainer ring 14 will retreat, the groove wall extending axially in the axial retaining groove 114 will stop rotating circumferentially with the radial protrusion 142 on the retainer ring 14, and the groove wall extending circumferentially away from the insertion end in the axial retaining groove 114, that is, the retaining surface will stop axially in the housing 11 with the radial protrusion 142 on the retainer ring 14, so that the retainer ring 14 is completely positioned.

When an operator detaches the connector 10, the retainer ring 14 is firstly pushed forward towards the plugging end, so that the radial protrusions 142 on the retainer ring 14 are aligned with the circumferential section 1112, then the retainer ring 14 is rotated so that the retainer ring 14 can be pushed down by the spring 15 to retreat from the circumferential section 1112 to the axial section 1111, and then the operator can detach the pressing cap 12 and the spring 15 from the housing 11 only by translating the retainer ring 14.

In the process of installation and removal, operating personnel only need promote and rotate the retaining ring, can realize the installation and the dismantlement of retaining ring for the shell, easy operation, it is convenient.

The specific embodiment of the connector of the present invention is not limited to the above embodiment 1, but includes the following embodiments:

embodiment 2 of the connector of the present invention is different from the above embodiments in that the groove walls on both sides of the circumferential section in this embodiment are parallel and extend along the circumferential direction of the housing.

Embodiment 3 of the connector of the present invention is different from the above embodiments in that the stop surface of the axial stop groove in this embodiment extends obliquely away from the insertion end.

Embodiment 4 of the connector of the present invention is different from the above embodiments in that the axial direction blocking groove in this embodiment extends obliquely away from the inserting end as a whole.

Embodiment 5 of the connector of the present invention is different from the above embodiments in that the mounting groove in this embodiment extends only in the axial direction of the housing, and the axial blocking groove is connected to the end of the mounting groove and extends in the circumferential direction of the housing, so that the groove body of the housing, which is engaged with the radial protrusion, is in an "L" shape. The blocking surface in the axial blocking groove is a groove wall in the axial blocking groove, which is back to the insertion end, and the groove wall can extend along the circumferential direction of the shell and can also extend obliquely back to the insertion end.

Embodiment 6 of the connector of the present invention is different from the above embodiments in that the mounting groove is spirally arranged on the housing, and the axial retaining groove is connected to an end of the mounting groove and extends in a circumferential direction of the housing, or the mounting groove is spirally arranged on the housing, and the axial retaining groove is connected to an end of the mounting groove and extends obliquely away from the insertion end, so that a groove body of the housing, which is engaged with the radial projection, is in a hook shape.

Embodiment 7 of the connector of the present invention is different from the above embodiments in that the distance between the final installation position of the retainer ring in this embodiment and the stop platform of the pressing cap stop on the housing is greater than the length of the pressing cap, so that the retainer ring is finally located outside the pressing cap and is not covered by the pressing cap, and at this time, no retainer ring groove or retainer ring hole is provided on the retainer ring, and an operator can directly fix the retainer ring outside the pressing cap.

Embodiment 8 of the connector of the present invention is different from the above embodiments in that a protrusion serving as a convex-concave structure is provided on the circumferential surface of the retainer ring in this embodiment, and a special tool can be circumferentially engaged with the protrusion on the circumferential surface of the retainer ring, and the retainer ring is driven to rotate by pulling the protrusion; or a groove serving as a convex-concave structure is arranged, a special tool can be inserted into the groove and is matched with the groove wall stop of the groove to drive the retainer ring to rotate, and the scheme that the convex-concave structure is arranged on the end face of the retainer ring is not limited to the scheme that the convex-concave structure is arranged.

The structure of the connector housing in the present invention is the same as the housing structure in the connector embodiment described above, and therefore, a description about a specific embodiment of the connector housing is not repeated, and the inner core disposed in the connector housing may be used for transmitting optical signals and also for transmitting electrical signals.

The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.