CN212905581U

Movatterモバイル変換

Info

Publication number: CN212905581U
Application number: CN202022148508.XU
Authority: CN
Inventors: 贾宇; 刘竞智
Original assignee: Shenzhen Hongan Communication Technology Co ltd
Current assignee: Shenzhen Hongan Communication Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-04-06
Anticipated expiration: 2030-09-25

Abstract

The application provides an optical fiber quick connector, this optical fiber quick connector includes following part: the connecting main body comprises a first connecting section provided with a first mounting cavity and a second connecting section provided with a second mounting hole, and the second mounting hole is communicated with the first mounting cavity and is arranged at an opening on one side away from the first connecting section; pre-buried optical fibers are pre-buried in the inserting core; the V-shaped groove assembly is arranged in the first installation cavity and comprises a connecting strip provided with a V-shaped groove, the inserting core is connected with the connecting strip, and the embedded optical fiber and the optical fiber penetrating through the second installation hole are embedded in the V-shaped groove and are connected in a centering mode; in the axial direction, the length of connecting strip is less than the length of second linkage segment, and the length of second linkage segment is less than or equal to the length of first linkage segment, and on the cross section of second linkage segment, the internal diameter length that is the second mounting hole of rectangle setting is greater than 3.2mm, and the internal diameter width is greater than 2.2 mm. The application provides an optic fibre quick connector can more adapt to the optic fibre quick connection of unconventional rubber-insulated-wire cable.

Description

Optical fiber quick connector

Technical Field

The application belongs to the technical field of optical fiber connecting equipment, and particularly relates to an optical fiber quick connector.

Background

In optical fiber communication systems, various optical fiber connectors have been widely used to achieve optical fiber splicing, wherein an optical fiber quick connector is an innovative field terminating connector. Conventional fiber optic quick connectors today typically include an optical fiber, a ferrule, and a mechanical splice structure. The optical fiber is factory pre-assembled, one part of which is embedded in the ferrule and the other part of which is embedded in the mechanical splice structure. The ceramic ferrule and the end face thereof in the optical fiber quick connector are pre-ground and pre-polished before leaving factory. The mechanical connection structure is positioned at the tail end of the ceramic ferrule and used for fixing the inserted optical fiber; the mechanical connection structure mainly comprises a V-shaped groove and a clamping element; when optical fibers need to be inserted, the V-shaped groove can be opened by the wedge-shaped clamp so that the optical fibers needing to be terminated can be smoothly inserted, after the optical fibers are inserted into the V-shaped groove and fixed, the wedge-shaped clamp can be pulled out from the V-shaped groove, and then the tail sleeve is screwed down, so that the installation can be completed. In other words, when the optical fiber is terminated, only the leading-in optical fiber needs to be inserted into the mechanical splicing structure without other connecting tools, the termination process is only about 2 minutes, and the installation time is greatly saved.

The conventional optical fiber quick connector on the market is only suitable for the optical fiber connection of the conventional rubber-covered optical cable with the wire diameter of 2.0 x 3.0mm, and is not suitable for the installation of the unconventional rubber-covered optical cable. However, with the popularization of fiber to the home in all countries around the world, the construction of 5G networks, and other reasons, various special fiber use environments appear, so that the demand of the unconventional rubber-insulated fiber optic cable will be larger and larger, and further the demand of the unconventional quick connector will also be increased, which will be another gap in the fiber market. The size of the cross section of the unconventional rubber-insulated optical cable is generally larger than that of the conventional rubber-insulated optical cable, and the length of the conventional optical fiber quick connector is not suitable for the unconventional quick connector, so that the communication is not smooth due to the long length of the conventional optical fiber quick connector.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the present application is to provide an optical fiber quick connector to solve the technical problem that the conventional optical fiber quick connector in the prior art cannot adapt to the optical fiber quick connection of the unconventional rubber-insulated-wire optical cable.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is an optical fiber quick connector for connection of a covered wire optical cable, characterized in that the optical fiber quick connector comprises:

the connecting body comprises a first connecting section and a second connecting section which are sequentially connected along the axial direction, a first mounting cavity is arranged in the first connecting section, a second mounting hole is arranged in the second connecting section, and the second mounting hole is communicated with the first mounting cavity and is arranged at an opening on one side away from the first connecting section;

the optical fiber connector comprises a ferrule, wherein a pre-buried optical fiber is pre-buried in the ferrule; and the number of the first and second groups,

the V-shaped groove assembly is installed in the first installation cavity and comprises a connecting strip provided with a V-shaped groove, the inserting core is connected with the connecting strip, and the embedded optical fiber and the optical fiber of the rubber-insulated optical cable penetrating through the second installation hole are embedded in the V-shaped groove and are connected in a centering mode;

wherein, along axial direction, the length of connecting strip is less than the length of second linkage segment, and the length of second linkage segment is less than or equal to the length of first linkage segment, and on the cross section of second linkage segment, the internal diameter length that is the second mounting hole of rectangle setting is greater than 3.2mm, and the internal diameter width is greater than 2.2 mm.

Optionally, a first through hole communicated with the first installation cavity is formed in the first connecting section; the connecting strip is provided with a position avoiding groove facing the first through groove, the groove bottom surface of the position avoiding groove is provided with a V-shaped groove, one end of the embedded optical fiber extending out of the ferrule is embedded in one side of the V-shaped groove adjacent to the ferrule, and the optical fiber exposed after the rubber-insulated optical cable is stripped from the sheath is embedded in the other side of the V-shaped groove adjacent to the second connecting section;

the V-shaped groove assembly further comprises a pressing strip and a lock catch, the pressing strip is arranged in the avoiding groove and exposed through the first through hole, the lock catch is in a cylindrical shape and is axially communicated, and the pressing strip and the connecting strip are sleeved in the lock catch;

the lock catch can slide along the axial direction and is provided with an opening position adjacent to the inserting core and a locking position adjacent to the second connecting section, when the lock catch is located at the opening position, a gap is formed between the pressing strip and the connecting strip, and when the lock catch is located at the locking position, the pressing strip presses the connecting strip tightly.

Optionally, a first mark indicating an open position and a second mark indicating a locking position are further provided on the first connecting section, the first mark is located on a side of the outer edge of the first through hole adjacent to the ferrule in the axial direction of the first connecting section, and the second mark is located on a side of the outer edge of the first through hole away from the ferrule.

Optionally, the V-shaped groove comprises two V-shaped groove sections and a linear groove section, the length extension direction of the linear groove section is consistent with that of the connecting strip, and the tips of the two V-shaped groove sections are respectively communicated with the linear groove section; the V-shaped groove is filled with matching fluid.

Optionally, the V-groove assembly further comprises a connecting column and a spring, the connecting column is formed by extending from the end face of one end of the connecting strip, which is far away from the ferrule, in the direction towards the second mounting hole, the spring is sleeved on the connecting column, and the connecting column and the spring are both smaller than the connecting strip along the axial length.

Optionally, the ratio between the length of the spring in its natural state and the length of the connecting strip ranges from 0.3 to 0.2.

Optionally, the second connecting section comprises two oppositely arranged clamping jaws, the length extension directions of the two clamping jaws are consistent with the axial direction of the connecting body, one end of each clamping jaw is connected with the first connecting section, and the other end of each clamping jaw is arranged in a tapered manner in the direction away from the first connecting section; a second mounting hole is formed between the inner wall surfaces of the two clamping jaws.

Optionally, in the cross section of the second connecting section, the length of the inner diameter of the second mounting hole ranges from more than 4.1 mm to plus or minus 0.2mm, and the width of the inner diameter is more than 3.1 mm to plus or minus 0.2 mm.

Optionally, the fiber optic quick connector has a length in the axial direction of less than or equal to 50 mm.

Optionally, the optical fiber quick connector further comprises a tail sleeve nut, a first thread is arranged on the second connecting section adjacent to the first connecting section, a second thread is arranged on the inner wall of the tail sleeve nut, and the tail sleeve nut is sleeved on the second connecting section and then detachably screwed with the second connecting section through the adaptive screwing of the second thread and the first thread;

the axial length of the tail sleeve nut is greater than the second connecting section and the first connecting section, the axial length of the second thread is greater than the axial length of the first thread, and the thread depth of the second thread is greater than that of the first thread.

The application provides an optic fibre quick connector's beneficial effect lies in: compared with the prior art, this application optic fibre quick connector passes through during optic fibre of rubber-insulated-wire cable inserts the V-arrangement recess of V type groove subassembly from first mounting hole, and with pre-buried optic fibre centering connection, just can realize being connected to this optic fibre quick connector with the optic fibre of rubber-insulated-wire cable fast conveniently, then, the rethread pre-buried lock pin that has pre-buried optic fibre corresponds the grafting in the jack that needs jointing equipment, so, just can realize swiftly connecting rubber-insulated-wire cable optic fibre on this equipment. Here, because this optic fibre quick connector is less than the length of second linkage segment owing to the length of connecting strip, and the length of second linkage segment is less than or equal to the length of first linkage segment, so this setting can effectively shorten the length of connecting strip and second linkage segment under the prerequisite of the communication quality who guarantees optic fibre, and then inserts and with the centering of pre-buried optic fibre for the optic fibre of rubber-insulated-wire cable and provide convenience. Meanwhile, the length of the inner diameter of the second mounting hole is larger than 3.2mm, the width of the inner diameter is larger than 2.2mm, namely the hole area of the second mounting hole on the cross section is larger than the cross section area of the conventional rubber-insulated optical cable, so that the optical fiber quick connector is more suitable for thicker unconventional rubber-insulated optical cables. In other words, through the special structural design, the optical fiber quick connector can enable the unconventional rubber-insulated optical cable to be applied to wider industry fields, and the market competitiveness of the unconventional rubber-insulated optical cable is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of an optical fiber quick connector according to an embodiment of the present disclosure;

FIG. 2 is a side view of a fiber optic quick connector provided in accordance with an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along the direction S-S in FIG. 2;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is an exploded view of an angle of a fiber optic quick connector according to an embodiment of the present application;

FIG. 6 is an exploded view of another angle of a fiber optic quick connector according to an embodiment of the present application;

fig. 7 is an exploded view of a ferrule and V-groove assembly of a fiber optic quick connector according to an embodiment of the present application.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Connectingbody	200	Inserting core
300	V-shaped groove assembly	110	First connectingsection
				120	Second connectingsection	111	First installation cavity
121	Second mounting hole	310	Connecting strip
				311	V-shaped groove	410	Dust-proof cap
420	Dust-proof cover	112	First throughhole
				312	Avoidinggroove	320	Pressing bar
330	Lock catch	113	First mark
				114	Second label	311a	V-shaped groove section
311b	Straightline groove section	340	Connectingcolumn
				350	Spring	122	Clampingjaw
123	Latch	500	Tail sleeve nut
				124	First screw thread	510	Second screw thread

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present application are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The embodiment of the application provides an optical fiber quick connector.

Referring to fig. 1-3, in one embodiment, the optical fiber quick connector is mainly used for connecting a rubber-insulated optical cable (not shown). The fiber optic quick connector includes aconnector body 100, aferrule 200, and a V-groove assembly 300. The connectingbody 100 comprises a first connectingsection 110 and a second connectingsection 120 which are sequentially connected along the axial direction, afirst mounting cavity 111 is formed in the first connectingsection 110, asecond mounting hole 121 is formed in the second connectingsection 120, and thesecond mounting hole 121 is communicated with thefirst mounting cavity 111 and is arranged at an opening on one side, away from the first connectingsection 110; pre-buried optical fibers (not shown) are pre-buried in theferrule 200; the V-shaped groove assembly 300 is installed in thefirst installation cavity 111, the V-shaped groove assembly 300 comprises aconnecting strip 310 provided with a V-shaped groove 311, theinserting core 200 is connected with the connectingstrip 310, and the embedded optical fibers and the optical fibers of the rubber-insulated optical cable penetrating through thesecond installation hole 121 are embedded in the V-shaped groove 311 and are connected in a centering mode; in the axial direction, the length of the connectingstrip 310 is less than that of the second connectingsection 120, the length of the second connectingsection 120 is less than or equal to that of the first connectingsection 110, and on the cross section of the second connectingsection 120, the length of the inner diameter of thesecond mounting hole 121 in the rectangular arrangement is greater than 3.2mm, and the width of the inner diameter is greater than 2.2 mm.

It should be noted that the optical fiber quick connector is an unconventional embedded optical fiber quick connector, and is particularly suitable for unconventional rubber-covered wire optical cables. Since conventional fiber optic quick connectors typically have a total length of 55mm, they are suitable for 2.0 x 3.0mm conventional flex cables, while to accommodate higher information transmission requirements such as 5G networks, unconventional flex cables are typically larger in size than conventional flex cables. In the actual line connection operation, in order to accurately determine the optical fiber length of the rubber-insulated optical cable inserted into the optical fiber quick connector and ensure accurate centering connection with the embedded optical fiber, a length fixing device is also needed. Further, in the present application, theferrule 200 is aferrule 200, and theferrule 200 is preferably a class A threering ferrule 200, with the endfaces of theferrule 200 being pre-ground and pre-polished prior to shipment. To protect theferrule 200, the fiber optic quick connector also includes adust cap 410, and thedust cap 410 can be removed from theferrule 200 when theferrule 200 is needed. Of course, in order to protect the connectingbody 100, especially the optical fiber inside the connectingbody 100, and achieve the effect of dust sealing, the first connectingsection 110 is further sleeved with adetachable dust cover 420.

Based on this structural design, in this embodiment, the optic fibre through the rubber-insulated-wire cable inserts in V-arrangement recess 311 of Vtype groove subassembly 300 from first mounting hole, and with pre-buried optic fibre centering connection, just can realize being connected to this optic fibre quick connector with the optic fibre of rubber-insulated-wire cable on fast conveniently, then, the rethread is pre-buried to have pre-buried optic fibre'slock pin 200 to correspond to peg graft in the jack that needs jointing equipment, so, just can realize swiftly connecting the rubber-insulated-wire cable optic fibre on this equipment. Here, because this optic fibre quick connector is less than the length ofsecond linkage segment 120 owing to the length of connectingstrip 310, and the length ofsecond linkage segment 120 is less than or equal to the length offirst linkage segment 110, so this setting can effectively shorten the length of connectingstrip 310 andsecond linkage segment 120 under the prerequisite of the communication quality of guaranteeing optic fibre, and then inserts and with the centering of pre-buried optic fibre for the optic fibre of rubber-insulated-wire cable and provides convenience. Meanwhile, the length of the inner diameter of thesecond mounting hole 121 is greater than 3.2mm, and the width of the inner diameter is greater than 2.2mm, that is, the hole area of thesecond mounting hole 121 on the cross section is greater than the cross section area of the conventional rubber-insulated optical cable, so that the optical fiber quick connector is more suitable for thicker unconventional rubber-insulated optical cables. In other words, through the special structural design, the optical fiber quick connector can enable the unconventional rubber-insulated optical cable to be applied to wider industry fields, and the market competitiveness of the unconventional rubber-insulated optical cable is improved.

Referring to fig. 3 to 7, in the present embodiment, a first through hole 112 communicating with the first mounting cavity 111 is formed on the first connecting section 110; the connecting strip 310 is provided with a position avoiding groove 312 facing the first through groove, the groove bottom surface of the position avoiding groove 312 is provided with a V-shaped groove 311, one end of the embedded optical fiber extending out of the ferrule 200 is embedded in one side of the V-shaped groove 311 adjacent to the ferrule 200, and the optical fiber exposed after the rubber-insulated optical cable is stripped from the sheath is embedded in the other side of the V-shaped groove 311 adjacent to the second connecting section 120; the V-groove assembly 300 further comprises a pressing strip 320 and a lock catch 330, the pressing strip 320 is arranged in the avoiding groove 312 and exposed through the first through hole 112, the lock catch 330 is in a cylindrical shape and is axially through, and the pressing strip 320 and the connecting strip 310 are sleeved in the lock catch 330; the lock catch 330 can slide along the axial direction and has an open position adjacent to the ferrule 200 and a closed position adjacent to the second connecting section 120, when the lock catch 330 is at the open position, a gap is formed between the pressing strip 320 and the connecting strip 310, so that the wedge clamp can conveniently open the V-shaped groove 311, and optical fibers needing to be terminated can be conveniently and smoothly inserted; when the latch 330 is in the locked position, the compression bead 320 compresses the connecting strip 310. Therefore, the V-shapedgroove 311 can be conveniently opened through sliding conversion of thelock catch 330 between the locking position and the opening position, and further, the optical fiber of the rubber-insulated optical cable can conveniently enter the V-shapedgroove 311 to be accurately aligned and connected with the embedded optical fiber. In addition, a proper amount of matching fluid is added between thepressing strip 320 and the connectingstrip 310, especially at the aligned connection position of the two optical fibers, so as to reduce the connection loss and ensure the smoothness of information transmission.

Further, as shown in fig. 5 and 6, in the present embodiment, afirst mark 113 indicating an open position and asecond mark 114 indicating a lock position are further provided on the first connectingsection 110, and in the axial direction of the first connectingsection 110, thefirst mark 113 is located on a side of the outer edge of the first throughhole 112 adjacent to theferrule 200, and thesecond mark 114 is located on a side of the outer edge of the first throughhole 112 away from theferrule 200. Specifically, thefirst flag 113 may be, but is not limited to being, "OFF", thesecond flag 114 may be, but is not limited to being, "ON", and the like; the words "ON" and "OFF" may be formed by embossing ON the front surface of the connectingbody 100 to facilitate the user to recognize the direction. In addition, a transverse rib is provided on thelocker 330 to serve as an anti-slip function when thelocker 330 is pushed.

Referring to fig. 4, 6 and 7, in the present embodiment, the V-shapedgroove 311 includes two V-shaped groove sections 311A and astraight groove section 311b, a length extending direction of thestraight groove section 311b is the same as a length extending direction of the connectingstrip 310, and tips of the two V-shaped groove sections 311A are respectively communicated with thestraight groove section 311 b; the V-shapedgroove 311 is filled with a matching fluid for reducing optical loss when the optical fibers are butted. The double-section V-shapedgroove 311 structure can ensure the butt joint of the optical fibers and enable the coating layer of the optical fibers to be stripped shorter, thereby effectively reducing the problem of easy fiber breakage caused by too long stripping of the optical fiber coating layer. In addition, compared with the conventional optical fiber quick connector, the length of the tail part of the V-groove, i.e. the V-groove section 311A, which is matched with theferrule 200 is relatively shortened, so that the structure of the V-groove 311 can be effectively improved, the volatilization of the matching fluid can be reduced, and the full butt joint of the pre-buried optical fiber and the optical fiber of the accessed covered wire optical cable can be ensured.

Referring to fig. 3 to 7, further, in the present embodiment, the V-groove assembly 300 further includes aconnection post 340 and aspring 350, theconnection post 340 is formed by extending from an end surface of theconnection post 310, which is far away from theferrule 200, toward thesecond mounting hole 121, thespring 350 is sleeved on theconnection post 340, and the lengths of theconnection post 340 and thespring 350 in the axial direction are both smaller than theconnection post 310. When the connector assembly is installed, thespring 350 is in a compressed state, and after the connector assembly is installed, thespring 350 extends under the action of elastic restoring force, so that the connectingstrip 310 can be axially abutted against one end of thefirst installation cavity 111, which is adjacent to theferrule 200, so that the connectingstrip 310 is installed more stably and theferrule 200 can stably protrude out of theconnector body 100.

Referring to fig. 3 and 4, in the present embodiment, it is preferable that the ratio between the length of thespring 350 in the natural state and the length of theconnection bar 310 is in the range of 0.3 to 0.2. Therefore, the relative length of thespring 350 and the connectingcolumn 340 along the axial direction can be shortened, so that the volatilization rate of the matching liquid can be reduced, and the full butt joint of the pre-buried optical fiber and the accessed optical fiber can be ensured.

Further, as shown in fig. 3, in the present embodiment, the second connectingsection 120 includes two opposite clampingjaws 122, the length extending direction of the two clampingjaws 122 is the same as the axial direction of the connectingbody 100, one end of the clampingjaw 122 is connected to the first connectingsection 110, and the other end of the clampingjaw 122 is tapered in a direction away from the first connectingsection 110; asecond mounting hole 121 is defined between the inner walls of the two clampingjaws 122. Here,first linkage segment 110 andsecond linkage segment 120 can mould plastics and form an organic whole, and the one side of keeping away fromfirst linkage segment 110 on the interior wall face of clampingjaw 122 still protruding is equipped with a plurality oflatches 123 moreover, and a plurality oflatches 123 are arranged along the length direction interval of clampingjaw 122, and theselatches 123 are mainly used for after rubber-insulated-wire cable gets into second mountinghole 121, play the fixed effect of centre gripping to the rubber-insulated-wire cable to ensure that the optic fibre of termination can accurately dock with pre-buried optic fibre all the time.

Referring to fig. 3, in this embodiment, the size of the suspension wire included in the sheathed rubber-insulated optical cable is 3.1 ± 0.2mm × 6.3 ± 0.2mm, and the size of the pull-out suspension wire is 3.1 × 4.1 ± 0.2mm, so that in order to adapt to the optical fiber connection of the sheathed rubber-insulated optical cable, the size of thesecond installation hole 121 of the optical fiber quick connector needs to be larger than the size of the rubber-insulated optical cable after the suspension wire is pulled out, that is, on the cross section of thesecond connection section 120, the inner diameter length of thesecond installation hole 121 is larger than 4.1 ± 0.2mm, and the inner diameter width is larger than 3.1 ± 0.2 mm.

Referring to fig. 1 and 2, in the present embodiment, the length of the optical fiber quick connector along the axial direction is preferably less than or equal to 50 mm. It can be understood that the conventional optical fiber quick connector is typically 55mm in length, however, in the actual optical communication system wiring, the optical fiber quick connector is generally installed inside an outdoor/indoor cabinet or box, the installation space thereof is limited, a space is squeezed when a large number of optical fiber quick connectors are used, if the length of the optical fiber quick connector is too long, the bending angle of the tail rubber-covered wire is too small, the light attenuation is too large, and even the short fiber condition occurs, resulting in the unsmooth communication, and in the connection of the thicker unconventional rubber-covered wire optical cable, the problem can be effectively improved by appropriately reducing the length of the optical fiber quick connector.

Referring to fig. 1 to 3 and fig. 5 to 6, in the present embodiment, the optical fiber quick connector further includes atail sleeve nut 500, afirst thread 124 is disposed on thesecond connection section 120 adjacent to thefirst connection section 110, asecond thread 510 is disposed on an inner wall of thetail sleeve nut 500, and after thetail sleeve nut 500 is sleeved on thesecond connection section 120, thesecond thread 510 and thefirst thread 124 are adapted to be screwed together to detachably screw with thesecond connection section 120; thetail cap nut 500 has a greater length in the axial direction than thesecond connection section 120 and thefirst connection section 110, and thesecond screw thread 510 has a greater length in the axial direction than thefirst screw thread 124, and thesecond screw thread 510 has a greater thread depth than thefirst screw thread 124. Thus, by lengthening the length of the tail nut and deepening the thread of the lengthenedsecond thread 510, the tensile strength of the covered wire optical cable connected to the optical fiber quick connector can be increased; meanwhile, the tail of thetail sleeve nut 500 is gradually reduced, and the tail of the second connectingsection 120 is also gradually reduced, so that when thetail sleeve nut 500 is screwed, the two clampingjaws 122 at the tail of the second connectingsection 120 can gradually contract, and the rubber-insulated optical cable entering thesecond mounting hole 121 is gradually clamped.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.