CN221351794U - Optical fiber connector - Google Patents

Abstract

The utility model discloses an optical fiber connector, and belongs to the technical field of optical fiber connectors. The optical fiber connector comprises a connector body, a shell, a ferrule assembly and a stress relief structure; the outer peripheral wall of the connector main body is provided with grooves and stop blocks which are arranged at intervals, and the ferrule assembly is fixedly inserted into the connector main body; the shell is sleeved on one end of the connector main body in a sliding manner along a first direction, and a plurality of clamping groove parts or protruding parts which are arranged at intervals are arranged on the shell, and the clamping groove parts extend along the first direction; one end of the stress relief structure is movably sleeved on the other end of the connector main body, a plurality of protruding parts or clamping groove parts are arranged on the stress relief structure, and an inner convex ring is arranged on the inner peripheral wall of the stress relief structure. The optical fiber connector provided by the embodiment of the utility model can be realized through the operation stress eliminating structure in the unlocking or locking process, so that the problem of error of an operation object is avoided, and the operation efficiency is improved.

Description

Optical fiber connector

Technical Field

The utility model belongs to the technical field of optical fiber connectors, and particularly relates to an optical fiber connector.

Background

Optical fiber connectors are widely used in the field of optical communications, and generally include a connector body, a housing, a ferrule assembly, and the like. The core inserting assembly is inserted into the connector main body, and the shell is slidably sleeved on the connector main body. According to the optical fiber connector, the connector body is inserted, so that the groove on the connector body is matched with the elastic clamping jaw of the adapter, and the locking of the optical fiber connector and the adapter can be realized, and further communication is realized. In the unlocking process, the shell is pulled to drive the connector main body to move, the shell is released from sleeving the groove, and the elastic clamping jaw can be separated from the groove, so that unlocking is realized.

However, the optical fiber connector requires manual operation of the connector body when locked, and requires operation of the housing when unlocked, which makes it easy to cause a problem of an error of an operation object during locking or unlocking, resulting in low working efficiency.

Disclosure of utility model

In order to meet the above-mentioned drawbacks or improvement demands of the prior art, the present utility model provides an optical fiber connector, which aims to avoid the problem of error of an operation object and improve the operation efficiency by implementing an operation stress relief structure in the unlocking or locking process.

In order to achieve the above object, the present utility model provides an optical fiber connector including a connector body, a housing, a ferrule assembly, and a stress relief structure;

The outer peripheral wall of the connector main body is provided with grooves and stop blocks which are arranged at intervals, and the ferrule assembly is fixedly inserted into the connector main body;

The shell is arranged at one end of the connector main body in a sliding sleeve mode along a first direction so as to cover the groove, the stop block is used for abutting against the shell to enable the shell to drive the connector main body to move, a plurality of clamping groove parts or protruding parts which are arranged at intervals are arranged on the shell, and the clamping groove parts extend along the first direction;

The connector comprises a connector body, a stress relief structure, a connector body, a connector plug and a connector assembly, wherein one end of the stress relief structure is movably sleeved on the other end of the connector body, a plurality of protruding parts or clamping groove parts are arranged on the stress relief structure, the protruding parts or the clamping groove parts on the stress relief structure are in insertion fit with the clamping groove parts or the protruding parts on the housing so as to drive the housing to move towards the stress relief structure, the other end of the stress relief structure is sleeved on and extends out of the connector plug assembly, and an inner peripheral wall of the stress relief structure is provided with an inner protruding ring so as to be propped against the other end of the connector body.

Optionally, the clamping groove part is a straight groove or an inclined groove.

Optionally, the outer peripheral wall of the connector body has a receiving groove extending in a first direction, a spring is inserted into the receiving groove, the inner peripheral wall of the housing has an inner flange, and one end of the spring abuts against the inner flange to drive the housing to move toward the groove.

Optionally, a first protrusion is disposed at an end of the inner flange facing away from the spring, and a second protrusion is disposed on an outer peripheral wall of the connector body, and the first protrusion is located between the second protrusion and the stop block, so as to limit the first protrusion.

Optionally, a plurality of clamping groove portions are disposed on the housing, a plurality of protruding portions are disposed on the stress relief structure, and a clearance groove is formed in the peripheral wall of the connector body, and the clearance groove and the protruding portions are arranged oppositely to accommodate deformation of the protruding portions.

Optionally, the optical fiber connector further comprises a crimp ring, the crimp ring being sandwiched between the ferrule assembly and the stress relief structure, the crimp ring being for crimping a strength element of an optical cable onto the ferrule assembly.

Optionally, the optical fiber connector further includes a heat-shrinkable sleeve, the heat-shrinkable sleeve is located between the ferrule assembly and the stress relief structure, one end of the heat-shrinkable sleeve is sleeved on the ferrule assembly, and the other end of the heat-shrinkable sleeve is sleeved on the optical cable.

Optionally, the optical fiber connector further comprises a dust cap movably sleeved on one end of the connector body to cover the ferrule assembly.

Optionally, the stress relief structure comprises a first end section and a second end section coaxially connected, and the second end section is inserted in the first end section such that the second end section forms the inner convex ring toward one end of the first end section.

Optionally, a plurality of strip-shaped holes are formed at the other end of the stress relief structure, and the strip-shaped holes are arranged in a staggered manner along the axial direction of the stress relief structure.

The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.

In general, compared with the prior art, the technical scheme conceived by the utility model has the following beneficial effects:

When the optical fiber connector provided by the embodiment of the utility model is used, the optical cable passes through the stress relief structure, and the optical fiber in the optical cable is connected with the ferrule assembly, so that signal transmission is realized.

Further, a plurality of clamping groove parts or protruding parts are arranged on the shell at intervals, and a plurality of protruding parts or clamping groove parts are arranged on the stress relief structure, so that the stress relief structure and the shell can be linked through the clamping groove parts inserted in the protruding parts, and the shell is driven to move downwards through driving the stress relief structure. At this time, the housing can release the cover of recess and establish, the in-process that moves down at pulling housing is through the spacing final pull-down connector main part of dog to can make the elasticity clamping jaw on the adapter break away from this recess, and then finally realize the unblock.

During the locking process, the stress relief structure is moved upward, and the inner collar on the stress relief structure drives the connector body to move upward. At the same time, the adapter will abut against the housing and move the housing downward relative to the connector body, and the housing will likewise release the recess from the socket, at which time the resilient jaws on the adapter will be properly inserted into the recess, thereby achieving the locking. After which the housing is again moved up to cover the recess.

That is, the optical fiber connector provided by the embodiment of the utility model can be realized through the operation stress eliminating structure in the unlocking or locking process, so that the problem of error of an operation object is avoided, and the operation efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of an optical fiber connector according to an embodiment of the present utility model;

FIG. 2 is a first cross-sectional view of an optical fiber connector according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a second cross-sectional view of an optical fiber connector according to an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4;

Fig. 6 is a schematic structural view of a connector body according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a housing according to an embodiment of the present utility model;

FIG. 8 is a cross-sectional view of a housing provided by an embodiment of the present utility model;

FIG. 9 is a cross-sectional view of another housing provided by an embodiment of the present utility model;

Fig. 10 is a schematic structural diagram of a stress relief structure according to an embodiment of the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular:

1. A connector body; 11. a groove; 12. a stop block; 13. a receiving groove; 14. a spring; 15. a second protrusion; 16. a clearance groove; 17. a groove; 18. sealing grooves; 19. fool-proof strips; 2. a housing; 21. a clamping groove part; 22. an inner flange; 23. a first protrusion; 24. a limit groove; 25. a receiving groove; 3. a ferrule assembly; 4. a stress relief structure; 41. a boss; 42. an inner convex ring; 43. a bar-shaped hole; 44. a first tail section; 45. a second tail section; 5. a crimp ring; 6. a heat-shrinkable sleeve; 7. a dust cap; 71. a connecting rope; 100. an optical cable.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples:

Fig. 1 is a schematic structural view of an optical fiber connector according to an embodiment of the present utility model, fig. 2 is a first sectional view of an optical fiber connector according to an embodiment of the present utility model, fig. 3 is a partial enlarged view of fig. 2, fig. 4 is a second sectional view of an optical fiber connector according to an embodiment of the present utility model, fig. 5 is a partial enlarged view of fig. 4, and the optical fiber connector includes a connector body 1, a housing 2, a ferrule assembly 3, and a stress relief structure 4, as shown in conjunction with fig. 1 to 5.

The outer peripheral wall of the connector body 1 has grooves 11 and stoppers 12 arranged at intervals, and the ferrule assembly 3 is fixedly inserted into the connector body 1.

The housing 2 is slidably sleeved on one end of the connector body 1 along a first direction (i.e. an axial direction of the connector body 1) so as to cover the groove 11, and the stop block 12 is used for abutting against the housing 2, so that the housing 2 drives the connector body 1 to move, and a plurality of clamping groove parts 21 or protruding parts 41 which are arranged at intervals are arranged on the housing 2, and the clamping groove parts 21 extend along the first direction.

One end of the stress relief structure 4 is movably sleeved on the other end of the connector body 1, a plurality of protruding parts 41 or clamping groove parts 21 are arranged on the stress relief structure 4, the protruding parts 41 or the clamping groove parts 21 on the stress relief structure 4 are in inserted fit with the clamping groove parts 21 or the protruding parts 41 on the shell 2 so as to drive the shell 2 to move towards the stress relief structure 4, the other end of the stress relief structure 4 is sleeved and extends out of the ferrule assembly 3, and an inner peripheral wall of the stress relief structure 4 is provided with an inner convex ring 42 so as to be propped against the other end of the connector body 1.

For an optical fiber connector provided in an embodiment of the present utility model, in use, the optical cable 100 passes through the stress relief structure 4, and the optical fiber in the optical cable 100 is connected to the ferrule assembly 3, so as to realize signal transmission.

Further, a plurality of clamping groove parts 21 or protruding parts 41 are arranged on the shell 2 at intervals, and a plurality of protruding parts 41 or clamping groove parts 21 are arranged on the stress relief structure 4, so that the stress relief structure 4 and the shell 2 can be linked through the clamping groove parts 21 inserted into the protruding parts 41 (the protruding parts 41 hook the clamping groove parts 21), and the shell 2 is driven to move downwards through driving the stress relief structure 4. At this time, the housing 2 will release the covering of the groove 11, and the connector body 1 is finally pulled down by the stop block 12 in the process of pulling the housing 2 downward, so that the elastic clamping jaw on the adapter is separated from the groove 11, and unlocking is finally realized.

During the locking process, the stress relief means 4 is moved upwards, and the inner collar 42 on the stress relief means 4 drives the connector body 1 upwards. At the same time, the adapter will abut against the housing 2 and move the housing 2 downwards relative to the connector body 1, the housing 2 will likewise release the recess 11, and the resilient clamping jaws on the adapter will then be inserted into the recess 11, thereby achieving the locking. After which the housing 2 is again moved upwards to cover the recess 11.

That is, the optical fiber connector provided by the embodiment of the utility model can be realized through the operation stress eliminating structure 4 in the unlocking or locking process, so that the problem of error of an operation object is avoided, and the operation efficiency is improved.

It will be readily appreciated that when the housing 2 is provided with the clamping groove portion 21, the stress relief structure 4 is correspondingly provided with the protruding portion 41, and this embodiment is illustrated in this way. Similarly, when the protruding portion 41 is provided on the housing 2, the clamping groove portion 21 is correspondingly provided on the stress relieving structure 4. In addition, the specific arrangement positions of the boss 41 and the card slot 21 can be selected adaptively.

In addition, when the housing 2 covers the groove 11, the sealing of the groove 11 can be considered at this time, so that the elastic clamping jaw on the adapter cannot be separated from the groove 11, and the problem of unexpected unlocking is avoided.

In one implementation of the present utility model, the clamping groove portion 21 may be a linear groove (i.e., the axis of the linear groove is parallel to the axis a of the housing 2 at this time, see fig. 8).

Illustratively, during unlocking, the pull-down stress relief structure 4 pulls the housing 2 downward under the guidance of the linear slot, the housing 2 releases the covering of the groove 11, and the stop 12 limits the final pull-down connector body 1 during pulling the housing 2 downward, so that the elastic clamping jaw on the adapter is separated from the groove 11, and unlocking is finally achieved. During the locking process, the stress relief means 4 is moved upwards, and the inner collar 42 on the stress relief means 4 drives the connector body 1 upwards. At the same time, the adapter will abut against the housing 2, the housing 2 will move downwards relative to the connector body 1 under the guidance of the linear groove, the housing 2 will also be released from the recess 11, and the elastic clamping jaw on the adapter will be inserted into the recess 11.

In addition, in this embodiment, the number of the linear grooves may be 2, and the corresponding circumferential angle between the 2 linear grooves is 180 °, so as to ensure that the two sides of the housing 2 are uniformly forced. In other embodiments of the present utility model, the number of the linear grooves may be 3 or more, and the linear grooves may be uniformly arranged, which is not limited by the present utility model.

Preferably, elastic blocks are inserted at two ends of the linear groove, so that the buffer limiting effect on the protruding portion 41 is achieved.

In another implementation of the present utility model, the slot portion 21 may also be an oblique slot (i.e. the axis of the oblique slot forms an angle with the axis a of the housing 2 at this time, see fig. 9).

Illustratively, during unlocking, the stress relief structure 4 is rotated, the stress relief structure 4 drives the housing 2 to move downwards under the guidance of the oblique groove, the housing 2 is unmated from the groove 11, and the final drive connector body 1 is limited to move downwards through the stop block 12 during the process of driving the housing 2 to move downwards, so that the elastic clamping jaw on the adapter is separated from the groove 11, and unlocking is finally achieved. During the locking process, the stress relief means 4 is moved upwards and rotated, and the inner collar 42 on the stress relief means 4 drives the connector body 1 upwards. At the same time, the adapter will abut against the housing 2, and the housing 2 will be driven to move downward relative to the connector body 1 under the guiding of the oblique slot during the rotation of the stress relief structure 4, and the housing 2 will also release the sleeve of the groove 11, at this time, the elastic clamping jaw on the adapter is just inserted into the groove 11.

Illustratively, the angle between the oblique groove and the axis a of the housing 2 may be 15-60 °, ensuring a high transmission efficiency between the stress relief structure 4 and the housing 2. In addition, the number of the inclined grooves can be 2, so that the uniform force application on two sides of the shell 2 is ensured. In other embodiments of the present utility model, the number of the inclined grooves may be 3 or more, and the inclined grooves may be uniformly arranged, which is not limited by the present utility model.

Similarly, elastic blocks are inserted at two ends of the oblique groove, so that the buffer limiting effect on the protruding portion 41 is achieved.

Fig. 6 is a schematic structural view of a connector body according to an embodiment of the present utility model, and as shown in fig. 6, an outer peripheral wall of the connector body 1 has a receiving groove 13 extending along a first direction, and a spring 14 is inserted into the receiving groove 13.

Fig. 7 is a schematic structural view of a housing according to an embodiment of the present utility model, and fig. 8 is a cross-sectional view of a housing according to an embodiment of the present utility model, and as shown in fig. 7 and 8, an inner peripheral wall of the housing 2 has an inner flange 22, and one end of the spring 14 abuts against the inner flange 22 to drive the housing 2 to move toward the groove 11.

In the above embodiment, the spring 14 can drive the housing 2 to reset, so that the housing 2 is prevented from being manually pulled to reset during the locking process, and the groove 11 is automatically covered.

Illustratively, in the first direction, the spring 14 partially extends out of the receiving recess 13 so as to conveniently bear against the inner flange 22.

In addition, the right end of the connector body 1 is provided with a plurality of grooves 17 arranged at intervals, thereby reducing the contact area between the connector body and the housing 2 and further reducing the friction force. The left end peripheral wall of the connector body 1 is provided with a sealing groove 18 for inserting a sealing ring to play a role in sealing and waterproofing.

Illustratively, the outer peripheral wall of the connector body 1 has a fool-proof strip 19 extending along the first direction, which is correspondingly inserted into a limit groove 24 of the inner peripheral wall of the housing 2, and plays a fool-proof limit role to prevent the fool-proof strip and the fool-proof strip from rotating relative to each other. In addition, the housing 2 has an inner peripheral wall provided with a receiving groove 25 which functions as a receiving spring together with the receiving groove 13.

Further, a first protrusion 23 is provided at an end of the inner flange 22 facing away from the spring 14, and the outer peripheral wall of the connector body 1 has a second protrusion 15, and the first protrusion 23 is located between the second protrusion 15 and the stopper 12, so as to limit the first protrusion 23.

It is easy to understand that the second protrusion 15 can limit the upward movement of the housing 2, so as to avoid the problem that the spring 14 acts to lower the housing 2 to collide with the adapter after being ejected. The stop 12 then achieves a limit to the downward movement of the housing 2.

Illustratively, the stop 12 and the second projection 15 are each located between the recess 11 and the receiving groove 13.

In this embodiment, the housing 2 is provided with a plurality of clamping groove portions 21, the stress relief structure 4 is provided with a plurality of protruding portions 41, the peripheral wall of the connector body 1 is provided with a clearance groove 16, the clearance groove 16 and the protruding portions 41 are arranged opposite to each other to accommodate deformation of the protruding portions 41, and the accommodating groove 13 facilitates deformation of the protruding portions 41, so that convenient insertion of the protruding portions 41 in the clamping groove portions 21 can be realized.

Illustratively, the boss 41 may be a hook.

Fig. 10 is a schematic structural view of a stress relief structure according to an embodiment of the present utility model, as shown in fig. 10, the stress relief structure 4 includes a first tail section 44 and a second tail section 45 coaxially connected, and the second tail section 45 is inserted into the first tail section 44, so that an end of the second tail section 45 facing the first tail section 44 forms an inner convex ring 42.

It will be readily appreciated that by providing the first and second mating tail sections 44, 45, the inner collar 42 can be conveniently formed to move the stress relief mechanism 4 upwardly while simultaneously driving the connector body 1 upwardly.

In addition, the other end (i.e., the second tail section 45) of the stress relief structure 4 is provided with a plurality of strip-shaped holes 43, and the plurality of strip-shaped holes 43 are arranged in a staggered manner in the axial direction of the stress relief structure 4.

It is easy to understand that the bottom end of the stress relief structure 4 can reduce the structural strength thereof by providing a plurality of strip-shaped holes 43, thereby playing a role in stress transition at the crimping position of the optical cable 100 and avoiding the problem that the bending radius of the optical cable 100 is too small to break the optical cable 100 due to stress concentration. In addition, the bar-shaped holes 43 are provided only at the bottom end of the stress relief structure 4, so that the top end structural strength of the stress relief structure 4 is not lowered, facilitating finger operation.

Illustratively, each of the strip-shaped apertures 43 extends circumferentially over the stress relief structure 4. The top end of the stress relief structure 4 is provided with an operation indication, which plays a role in reminding an operator.

Referring again to fig. 1-3, the fiber optic connector further includes a crimp ring 5, the crimp ring 5 being sandwiched between the ferrule assembly 3 and the strain relief structure 4, the crimp ring 5 being configured to crimp a strength element (aramid) of the fiber optic cable 100 onto the ferrule assembly 3. The crimp ring 5 serves to connect the ferrule assembly 3 and the optical cable 100, ensuring a reliable connection.

Further, the optical fiber connector further comprises a heat-shrinkable sleeve 6, the heat-shrinkable sleeve 6 is located between the ferrule assembly 3 and the stress eliminating structure 4, one end of the heat-shrinkable sleeve 6 is sleeved on the ferrule assembly 3, and the other end of the heat-shrinkable sleeve 6 is sleeved on the optical cable 100.

In the above embodiment, the heat-shrinkable sleeve 6 is also sleeved at the press-connection portion, and plays a role in sealing and waterproofing the press-connection portion between the ferrule assembly 3 and the stress relief structure 4.

Illustratively, the heat-shrinkable sleeve 6 is sleeved on the crimping ring 5, and after the heat-shrinkable sleeve 6 is sleeved, the heat-shrinkable sleeve is heated to form a thick and solidified molten structure, so that the sealing waterproof performance is good.

In this embodiment, the optical fiber connector further includes a dust cap 7, and the dust cap 7 is movably sleeved on one end of the connector body 1 to cover the ferrule assembly 3. The dust cap 7 seals the top end of the connector body 1, thereby preventing dust from the ferrule assembly 3.

Illustratively, the dust cap 7 is correspondingly provided with a resilient jaw which can likewise be inserted into a recess 11 in the connector body 1, so that locking is achieved.

In addition, the dust cap 7 is provided with a connecting rope 71, and one end of the connecting rope 71 is fixed on the stress relief structure 4, so that the dust cap 7 is prevented from being lost.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. An optical fiber connector, characterized in that the optical fiber connector comprises a connector body (1), a housing (2), a ferrule assembly (3) and a stress relief structure (4);

The periphery wall of the connector main body (1) is provided with grooves (11) and stop blocks (12) which are arranged at intervals, and the ferrule assembly (3) is fixedly inserted into the connector main body (1);

The shell (2) is sleeved on one end of the connector main body (1) in a sliding manner along a first direction so as to cover the groove (11), the stop block (12) is used for abutting against the shell (2) to enable the shell (2) to drive the connector main body (1) to move, a plurality of clamping groove parts (21) or protruding parts (41) which are arranged at intervals are arranged on the shell (2), and the clamping groove parts (21) extend along the first direction;

one end of the stress relief structure (4) is movably sleeved on the other end of the connector main body (1), a plurality of protruding parts (41) or clamping groove parts (21) are arranged on the stress relief structure (4), the protruding parts (41) or the clamping groove parts (21) on the stress relief structure (4) are in inserted fit with the clamping groove parts (21) or the protruding parts (41) on the shell (2) so as to drive the shell (2) to move towards the stress relief structure (4), the other end of the stress relief structure (4) is sleeved on and extends out of the ferrule assembly (3), and an inner peripheral wall of the stress relief structure (4) is provided with an inner convex ring (42) so as to abut against the other end of the connector main body (1).

2. An optical fiber connector according to claim 1, wherein the clamping groove portion (21) is a straight groove or an inclined groove.

3. An optical fiber connector according to claim 1, characterized in that the outer peripheral wall of the connector body (1) has a receiving groove (13) extending in a first direction, a spring (14) is inserted into the receiving groove (13), the inner peripheral wall of the housing (2) has an inner flange (22), and one end of the spring (14) abuts against the inner flange (22) to drive the housing (2) to move toward the groove (11).

4. A fiber optic connector according to claim 3, wherein the end of the inner flange (22) facing away from the spring (14) is provided with a first projection (23), the outer peripheral wall of the connector body (1) has a second projection (15), and the first projection (23) is located between the second projection (15) and the stop (12) to limit the first projection (23).

5. An optical fiber connector according to any one of claims 1 to 4, wherein a plurality of said catching groove portions (21) are provided on said housing (2), a plurality of said projecting portions (41) are provided on said stress relief structure (4), and an outer peripheral wall of said connector body (1) has a clearance groove (16), said clearance groove (16) being disposed opposite to said projecting portions (41) to accommodate deformation of said projecting portions (41).

6. An optical fiber connector according to any of claims 1-4, further comprising a crimp ring (5), the crimp ring (5) being sandwiched between the ferrule assembly (3) and the stress relief structure (4), the crimp ring (5) being adapted to press a strength element of an optical cable onto the ferrule assembly (3).

7. An optical fiber connector according to any one of claims 1-4, further comprising a heat-shrinkable sleeve (6), said heat-shrinkable sleeve (6) being located between said ferrule assembly (3) and said stress relief structure (4), and one end of said heat-shrinkable sleeve (6) being arranged over said ferrule assembly (3), and the other end of said heat-shrinkable sleeve (6) being arranged over the optical cable.

8. An optical fiber connector according to any one of claims 1-4, further comprising a dust cap (7), the dust cap (7) being movably fitted over one end of the connector body (1) to house the ferrule assembly (3).

9. An optical fiber connector according to any of claims 1-4, wherein the stress relief structure (4) comprises a first end section (44) and a second end section (45) coaxially connected, and the second end section (45) is inserted into the first end section (44) such that the second end section (45) forms the inner collar (42) towards one end of the first end section (44).

10. An optical fiber connector according to any one of claims 1 to 4, wherein the other end of the stress relief structure (4) is provided with a plurality of strip-shaped holes (43), and a plurality of the strip-shaped holes (43) are arranged in a staggered manner along the axial direction of the stress relief structure (4).