Joint tail sleeve connector with changeable polarity

Abstract

The utility model discloses a polarity-changeable combined tail sleeve connector, which comprises an inner frame sleeve, an optical fiber cable, a first pair of plugs, a second pair of plugs, an outer frame sleeve and an unlocking tail sleeve, wherein the optical fiber cable is fixedly connected with one end of the inner frame sleeve; the first pair of plugs and the second pair of plugs are fixedly connected with the other end of the inner frame sleeve; when polarity needs to be changed, the outer frame sleeve and the unlocking tail sleeve are unlocked, then the outer frame sleeve and the inner frame sleeve retreat towards the direction of the optical fiber cable while being unlocked, after the whole unlocking tail sleeve retreats to the position of the optical fiber cable, the outer frame sleeve is rotated by 180 degrees, the outer frame sleeve retreats towards the outside, and then the outer frame sleeve is rotated by 180 degrees, so that the polarity can be changed. And then the outer frame sleeve is pushed towards the inner frame sleeve until the outer frame sleeve is buckled with the inner frame sleeve until the unlocking tail sleeve is buckled with the inner frame sleeve and the unlocking tail sleeve is elastically pressed and buckled with the outer frame sleeve, so that the polarity conversion can be completed, and the polarity conversion is simple, rapid and convenient. And the unlocking tail sleeve is buckled with the outer frame sleeve in an elastic pressing manner and is also buckled with the inner frame sleeve, so that the overall structure is more stable, and the stability of overall signal transmission is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connector of combined tail sleeve with changeable polarity. BACKGROUND

[0002] Optical fiber connector is a device for detachable connection between optical fibers, which precisely butts two end faces of optical fibers to maximize coupling of light energy output by transmitting optical fiber into receiving optical fiber. With increasing demand for communication bandwidth, optical fibers have been widely used in wired communication networks. Most optical fiber systems today use a pair of optical fibers for transmission, one for forward signal transmission and the other for reverse transmission. When installing and maintaining such systems, special attention should be paid to whether signals are transmitted on corresponding optical fibers to ensure correct transmission and reception polarity at all times. The existing optical fiber connector with changeable polarity has a complex structure, inconvenient polarity reversal, and many optical fiber connectors with changeable polarity have unstable overall structure to affect overall signal transmission effect and service life. The utility model is committed to solving the above problems. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a connector of combined tail sleeve with changeable polarity.

[0004] The utility model discloses a technical scheme adopted for solving its technical problems: a connector of combined tail sleeve with changeable polarity, including inner frame sleeve, with the fixed connection of optical fiber cable of one end of inner frame sleeve, with the fixed connection of first pair of plug and second pair of plug of the other end of inner frame sleeve, outer frame sleeve, unlocking tail sleeve, the outer frame sleeve is connected in first pair of plug and second pair of plug with the outside of inner frame sleeve and is buckled, the optical fiber cable is connected with first pair of plug and second pair of plug and extends out inner frame sleeve through the inside of inner frame sleeve, the unlocking tail sleeve is connected in the outside of inner frame sleeve with outer frame sleeve and is buckled, the outer frame sleeve is equipped with elastic piece, the unlocking tail sleeve is equipped with elastic buckle, and the elastic buckle is buckled with elastic piece.

[0005] Preferably, the two sides of the inner frame sleeve are provided with first elastic arm, second elastic arm, the first elastic arm extends towards the optical fiber cable direction, the second elastic arm extends towards the first pair of plug and the second pair of plug direction, the first elastic arm is equipped with first buckle position outside the end, the second elastic arm is equipped with second buckle position and stop position, the second buckle position is arranged outside the end of second elastic arm, the stop position is arranged outside the middle of second elastic arm, and the second buckle position and the stop position are provided with space one, the unlocking tail sleeve is buckled with the first buckle position, and the inner frame sleeve is buckled with the second buckle position.

[0006] Preferably, the inner frame sleeve is provided with a first inner frame and a second inner frame, the first inner frame and the second inner frame are in communication, the width of the first inner frame is smaller than the width of the second inner frame, the first inner frame is towards the optical fiber cable, and the second inner frame is towards the first pair of plugs and the second pair of plugs.

[0007] Preferably, the second inner frame is provided with a first mounting port and a second mounting port side by side at one end of the first pair of plugs and the second pair of plugs, the bottom and the side of the first mounting port and the second mounting port are provided with mounting grooves, and the center of the second inner frame is provided with a U-shaped stop.

[0008] Preferably, the unlocking tail sleeve includes an unlocking frame and a tail sleeve buckled with the unlocking frame, both sides of the unlocking frame are provided with a first buckle window buckled with a first buckle position and a gap avoiding a position, the tail sleeve of the unlocking tail sleeve is sleeved on the outside of the optical fiber cable, the unlocking frame is provided with a buckling wall extending to the upper side of the outer frame sleeve, the bottom of the elastic buckle is provided with a space two between the top of the inner frame sleeve and the outer frame sleeve, the elastic buckle is provided at the bottom of the buckling wall and two, a positioning groove is provided between the two elastic buckles, a positioning gap groove is provided at the bottom of the positioning groove, the elastic buckle and the positioning groove are provided in the space two, and a space three is provided between the end of the first buckle window towards the elastic buckle and the first buckle position.

[0009] Preferably, the outer frame sleeve includes an outer frame main body sleeved on the outside of the inner frame sleeve, a first outer frame head fixedly connected with the outer frame main body and sleeved on the outside of the first pair of plugs, and a second outer frame head fixedly connected with the outer frame main body and sleeved on the outside of the second pair of plugs, the outer frame main body is provided with a second buckle window buckled with a second buckle position, the end of the outer frame main body towards the second buckle window is limited in the space one, the top of the outer frame main body is provided with a positioning column of the positioning gap groove, a positioning ridge fixedly connected with the positioning column and engaged with the positioning groove, and the elastic sheet includes a first elastic sheet provided at the top of the first outer frame head and a second elastic sheet provided at the top of the second outer frame head, and the first elastic sheet and the second elastic sheet are the same in structure.

[0010] Preferably, the top of the first elastic sheet is fixedly connected with an elastic pressing arc arm towards the outer frame main body, part of the elastic pressing arc arm is provided in the space two, the elastic pressing arc arm extends over the top of the outer frame main body and the inner frame sleeve, the elastic pressing arc arm is arched upwards, the top of the elastic pressing arc arm is provided with a buckle hole, the elastic buckle is buckled with the buckle hole, the top of the elastic pressing arc arm is in contact with the buckling wall, and the end of the buckle hole towards the tail sleeve is provided with a connecting chamfer connecting the buckle hole and the top of the elastic pressing arc arm.

[0011] The utility model discloses a beneficial effect provides a kind of polarity exchangeable joint tail cover connector, unlocking tail cover is simultaneously and with inner frame cover box outer frame cover all buckling, ensure that the overall structure is more stable, and then ensure the stability of overall signal transmission.When needing to exchange polarity, the outer frame cover is unlocked with unlocking tail cover, the unlocking tail cover is withdrawn towards the direction of fiber optic cable, the buckling of the inner frame cover of the unlocking tail cover is removed, then the unlocking tail cover continues to withdraw towards the direction of fiber optic cable, when the whole unlocking tail cover is withdrawn to the position of fiber optic cable, the unlocking tail cover is rotated 180 °, while the outer frame cover is unlocked with unlocking tail cover, the outer frame cover is unlocked with inner frame cover, the outer frame cover can be withdrawn towards outside, then the outer frame cover is rotated 180 ° and can be exchanged, the outer frame cover is pushed towards the direction of inner frame cover after the outer frame cover is rotated 180 ° until buckling with inner frame cover, then the unlocking tail cover is pulled towards the direction of first pair of plug and second pair of plug until unlocking tail cover and inner frame cover buckling and unlocking tail cover and outer frame cover buckling, polarity conversion can be completed, simple and fast convenient.The utility model discloses, the unlocking tail cover is buckled with outer frame cover, and also buckled with inner frame cover, overall structure is more stable, and then ensure the stability of overall signal transmission.

[0012] The embodiment is simple and stable, and polarity exchange can be performed by pulling the unlocking tail cover. In the utility model, the unlocking tail cover is buckled with the outer frame cover and the inner frame cover, and the overall structure is more stable, and then the stability of overall signal transmission is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structure schematic view of the utility model discloses a kind of polarity exchangeable joint tail cover connector.

[0014] Figure 2 is the explosion structure schematic view of the utility model discloses a kind of polarity exchangeable joint tail cover connector.

[0015] Figure 3 is the partial structure schematic view of the utility model discloses a kind of polarity exchangeable joint tail cover connector.

[0016] Figure 4 is the partial structure schematic view of the inner frame cover of the utility model discloses a kind of polarity exchangeable joint tail cover connector.

[0017] Figure 5 is the structure schematic view of the unlocking tail cover of the utility model discloses a kind of polarity exchangeable joint tail cover connector.

[0018] Figure 6 is the structure schematic view of the outer frame cover of the utility model discloses a kind of polarity exchangeable joint tail cover connector. DETAILED DESCRIPTION

[0019] The embodiments of the present application are described below in conjunction with the accompanying drawings and related embodiments, and the embodiments of the present application are not limited to the following embodiments, and the present application relates to related necessary components in the technical field, which should be regarded as the known technology in the technical field and can be known and mastered by the person skilled in the art.

[0020] In the description of the present application, it should be pointed out that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "one", "two" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance. It should be pointed out in the description of the present application that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] Referring to Figures 1 to 6 , the utility model is such implementation: a connector of joint tail cover of changeable polarity,

[0022] Including inner frame cover 1, with the one end fixed connection of inner frame cover 1 optical fiber cable 2, with the other end fixed connection of inner frame cover 1 first pair of plug 3 and second pair of plug 4, outer frame cover 5, unlock tail cover 6, the outer frame cover 5 cover and with the outside of inner frame cover 1 of first pair of plug 3 and second pair of plug 4 buckle, the optical fiber cable 2 with first pair of plug 3 and second pair of plug 4 are connected and extend out inner frame cover 1 through the inside of inner frame cover 1, the unlock tail cover 6 cover and with the outside of inner frame cover 1 and outer frame cover 5 elastic pressure buckle, the outer frame cover 5 is equipped with elastic pressure piece 51, the unlock tail cover 6 is equipped with elastic pressure buckle 63, the elastic pressure buckle 63 and elastic pressure piece 51 elastic pressure buckle.

[0023] The utility model discloses a signal transmission, the optical fiber cable divides into two strands and enters the inside of inner frame cover 1 and enters first pair of plug 3 and second pair of plug cover respectively, the outer frame cover 5 is connected in the outside of first pair of plug 3 and second pair of plug 4, and is partially connected in the outside of inner frame cover 1 and is buckled with the outside of inner frame cover 1, then the unlocking tail cover 6 is set on the direction of first pair of plug 3 and second pair of plug 4 from optical fiber cable 2, and the tail of unlocking tail cover 6 is connected in the outside of optical fiber cable 2, the unlocking tail is connected in the outside of inner frame cover 1 and is buckled with inner frame cover 1, and the unlocking tail cover 6 is buckled with outer frame cover 5.

[0024] When the polarity needs to be exchanged, the outer frame cover 5 and the unlocking tail cover 6 are unlocked, the unlocking tail cover 6 is withdrawn towards the optical fiber cable 2, the buckling between the unlocking tail cover 6 and the inner frame cover 1 is released, then the unlocking tail cover 6 continues to be withdrawn towards the optical fiber cable 2, when the unlocking tail cover 6 is withdrawn to the position of the optical fiber cable 2, the unlocking tail cover 6 is rotated by 180 degrees, and after the outer frame cover 5 and the unlocking tail cover 6 are unlocked, the outer frame cover 5 and the inner frame cover 1 are unlocked, the outer frame cover 5 can be withdrawn towards the outside, then the outer frame cover 5 is rotated by 180 degrees, the polarity can be exchanged, after the outer frame cover 5 is rotated by 180 degrees, the outer frame cover 5 is pushed towards the inner frame cover 1 until the outer frame cover 5 is buckled with the inner frame cover 1, then the unlocking tail cover 6 is pulled towards the first pair of plug 3 and the second pair of plug 4 until the unlocking tail cover 6 is buckled with the inner frame cover 1 and the unlocking tail cover 6 is buckled with the outer frame cover 5, the polarity conversion is completed, which is simple, fast and convenient. In the utility model, the unlocking tail cover 6 is buckled with the outer frame cover 5 and the inner frame cover 1, the overall structure is more stable, and the stability of the overall signal transmission is ensured.

[0025] The embodiment has simple and stable structure, and the polarity exchange is simple.

[0026] On the basis of the above embodiment, as a further preferred, the two sides of the inner frame cover 1 are provided with a first elastic arm 11 and a second elastic arm 12, the first elastic arm 11 extends towards the optical fiber cable 2, the second elastic arm 12 extends towards the first pair of plug 3 and the second pair of plug 4, the outer side of the tail end of the first elastic arm 11 is provided with a first buckling position 111, the second elastic arm 12 is provided with a second buckling position 121 and a gear position 122, the second buckling position 121 is arranged on the outer side of the tail end of the second elastic arm 12, the gear position 122 is arranged on the outer side of the middle of the second elastic arm 12, a space one 123 is arranged between the second buckling position 121 and the gear position 122, the unlocking tail cover 6 is buckled with the first buckling position 111, and the inner frame cover 1 is buckled with the second buckling position 121.

[0027] The inner frame sleeve 1 is provided with a first inner frame 13 and a second inner frame 14, the first inner frame 13 and the second inner frame 14 are in communication, the width of the first inner frame 13 is smaller than the width of the second inner frame 14, the first inner frame 13 is towards the optical fiber cable 2, and the second inner frame 14 is towards the first pair of plugs 3 and the second pair of plugs 4.

[0028] The second inner frame 14 is provided with a first mounting port 141 and a second mounting port 142 side by side at one end of the first pair of plugs 3 and the second pair of plugs 4, the bottom and the side of the first mounting port 141 and the second mounting port 142 are provided with a mounting groove 143, and the center of the second inner frame 14 is provided with a U-shaped stop 144.

[0029] The first pair of plugs 3 is mounted in the first mounting port 141, the second pair of plugs 4 is mounted in the second mounting port 142, and the first pair of plugs 3 and the second pair of plugs 4 are respectively limited in the mounting groove 143 at the bottom and the side of the first mounting port 141 and the second mounting port 142, so as to ensure that the first pair of plugs 3 and the second pair of plugs 4 can be accurately and stably mounted in the first mounting port 141 and the second mounting port 142 of the inner frame sleeve 1.

[0030] The optical fiber cable 2 is divided into two strands to enter the first inner frame 13 and the second inner frame 14 of the inner frame sleeve 1, and then enters the first pair of plugs 3 and the second pair of plugs 4 respectively, the U-shaped stop is arranged in the second inner frame 14, when the optical fiber cable 2 is divided into two strands, the U-shaped stop separates the two strands of optical fiber cable 2 before entering the first pair of plugs 3 and the second pair of plugs 4, so as to ensure that the two strands of optical fiber cable 2 do not interfere with each other and become messy.

[0031] On the basis of the above embodiment, as a further preferred, the unlocking tail sleeve 6 includes an unlocking frame 61 and a tail sleeve 62 buckled with the unlocking frame 61, both sides of the unlocking frame 61 are provided with a first buckle window 611 buckled with the first buckle position 111 and a gap 612 avoiding the second buckle position 122, the tail sleeve 62 of the unlocking tail sleeve 6 is sleeved on the outside of the optical fiber cable 2, the unlocking frame 61 is provided with a buckling wall 614 extending to the upper side of the outer frame sleeve 5, the elastic buckling 63 is arranged at one end of the buckling wall 614 towards the outside, the bottom of the elastic buckling 63 and the top of the inner frame sleeve 1 and the outer frame sleeve 5 are provided with a space two 55, the elastic buckling 63 is arranged at the bottom of the buckling wall 614 and two are arranged, the two elastic bucklings 63 are provided with a positioning groove 6142 therebetween, the bottom of the positioning groove 6142 is provided with a positioning gap groove 6143, the elastic buckling 63 and the positioning groove 6142 are arranged in the space two 55, and the first buckle window 611 is provided with a space three 615 between one end thereof towards the elastic buckling 63 and the first buckle position 111.

[0032] When the polarity is exchanged, the buckle connection between the elastic buckle 61 and the elastic sheet 51 is released, that is, the buckle connection between the tail sleeve 6 and the inner frame sleeve 1 is released. Due to the existence of the space three 615, the space pushes the unlocked tail sleeve 6 towards the direction of the optical fiber cable 2, until the first buckle position 111 and the first buckle window 611 are not in the presence of the space three 615, and then the first elastic arm 11 is pressed towards the center of the second inner frame 14, that is, the buckle connection between the first buckle position 111 and the second buckle window 521 is released, and then the buckle connection between the unlocked tail sleeve 6 and the inner frame sleeve 1 and the outer frame sleeve 5 is released, and then the unlocked tail sleeve 6 can be moved away from the optical fiber cable 2 by a certain distance, and then the unlocked frame 61 is rotated to exchange the polarity. The operation is simple and convenient.

[0033] On the basis of the above embodiment, as a further preferred, the outer frame sleeve 5 includes an outer frame body 52 sleeved outside the inner frame sleeve 1, a first outer frame head 53 fixedly connected with the outer frame body 52 and sleeved outside the first pair of plugs 3, and a second outer frame head 54 fixedly connected with the outer frame body 52 and sleeved outside the second pair of plugs 4, the outer frame body 52 is provided with a second buckle window 521 buckled with the second buckle position 121, and the end of the outer frame body 52 towards the second buckle window 521 is limited within the space one 123, the top of the outer frame body 52 is provided with a positioning column 525 buckled with the positioning notch slot 6143, and a positioning ridge 526 fixedly connected with the positioning column 525 and engaged with the positioning slot 6142, the elastic sheet 51 includes a first elastic sheet 531 arranged on the top of the first outer frame head 53 and a second elastic sheet 541 arranged on the top of the second outer frame head 54, and the first elastic sheet 531 and the second elastic sheet 541 have the same structure.

[0034] When it is necessary to release the buckle connection between the second buckle window 521 and the second buckle position 121, the gear position 122 is pressed to conveniently release the buckle connection between the second buckle position 121 and the second buckle window 521.

[0035] The top of the first elastic sheet 531 is fixedly connected with an elastic pressing arc arm 5311 towards the outer frame body 52, part of the elastic pressing arc arm 5311 is arranged within the space two 55, the elastic pressing arc arm 5311 extends beyond the top of the outer frame body 52 and the inner frame sleeve 1, the elastic pressing arc arm 5311 is arched upwards, the elastic pressing arc arm 5311 can be pressed downwards within the space two 55, and the end of the elastic pressing arc arm 5311 is in contact with the top of the inner frame sleeve 1 when it is pressed, so as to ensure that the amplitude of the top of the inner frame sleeve 1 being pressed is not too large, thereby increasing the service life of the elastic pressing arc arm 5311. The top of the elastic pressing arc arm 5311 is provided with a buckle hole 53111, the elastic buckle 63 is buckled with the buckle hole 53111, the top of the elastic pressing arc arm 5311 is in contact with the buckle wall 614, and one end of the buckle hole 53111 towards the tail sleeve 62 is provided with a connecting chamfer 53112 connecting the buckle hole 53111 and the top of the elastic pressing arc arm 5311.

[0036] When the outer frame sleeve 5 is sleeved outside the inner frame sleeve 1, the positioning column 525 of the outer frame body 52 enters the positioning notch slot 6143, and the positioning ridge 526 enters the positioning slot 6142, thereby ensuring that the outer frame sleeve and the inner frame sleeve can be accurately positioned and assembled. The second buckle position 121 is buckled with the second buckle window 521, and when the outer frame sleeve 5 needs to be unbuckled, the second elastic arm 12 can be depressed towards the second inner frame 14 by pressing the gear position 122, thereby releasing the buckling of the second buckle position 121 and the second buckle window 521, and the operation is simple and convenient.

[0037] The first elastic sheet 531 and the second elastic sheet 541 are depressed, the elastic buckle 61 slides out along the connecting chamfer 53112 towards the optical fiber cable 2, thereby releasing the buckling of the unlocking tail sleeve 6 and the outer frame body 52, and as the elastic buckle 61 slides out of the buckle hole 53111, the first elastic arm 11 is depressed towards the center of the second inner frame 14, thereby releasing the buckling of the first buckle position 111 and the second buckle window 521, and as the unlocking tail sleeve 6 continues to retreat towards the direction of the optical fiber cable 2, the first elastic sheet 531 and the second elastic sheet 541 are released, and because the elastic buckle arm 5311 is arched upwards, the rebound force of the elastic buckle arm 5311 makes the first elastic sheet 531 and the second elastic sheet 541 return to the original position, and after the polarity conversion is completed, the elastic buckle 61 and the buckle hole 53111 of the first elastic sheet 531 and the second elastic sheet 541 are buckled again.

[0038] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection range of the present application.

Claims

1. A reversible polarity joint tail sleeve connector characterized by The utility model relates to a fiber optic cable, including inner frame sleeve (1), with the fixed connection of one end of inner frame sleeve (1) fiber optic cable (2), with the fixed connection of the other end of inner frame sleeve (1) first pair of plug (3) and second pair of plug (4), outer frame sleeve (5), unlock tail sleeve (6), outer frame sleeve (5) sleeve connection first pair of plug (3) and second pair of plug (4) and with the outside of inner frame sleeve (1) buckle, fiber optic cable (2) with first pair of plug (3) and second pair of plug (4) are connected and extend out inner frame sleeve (1) through the inside of inner frame sleeve (1), unlock tail sleeve (6) sleeve connection the outside of inner frame sleeve (1) and with outer frame sleeve (5) elastic pressure buckle, outer frame sleeve (5) is equipped with elastic pressure piece (51), unlock tail sleeve (6) is equipped with elastic pressure buckle (63), and elastic pressure buckle (63) with elastic pressure piece (51) elastic pressure buckle.

2. A reversible polarity joint hub connector as claimed in claim 1, wherein The both sides of the inner frame sleeve (1) are provided with a first elastic arm (11) and a second elastic arm (12), the first elastic arm (11) extends towards the fiber optic cable (2), the second elastic arm (12) extends towards the first pair of plug (3) and the second pair of plug (4), the outer end of the first elastic arm (11) is provided with a first buckle (111), the second elastic arm (12) is provided with a second buckle (121) and a gear (122), the second buckle (121) is arranged at the outer end of the second elastic arm (12), the gear (122) is arranged at the middle part of the second elastic arm (12), and a space (123) is arranged between the second buckle (121) and the gear (122), the unlock tail sleeve (6) is buckled with the first buckle (111), and the inner frame sleeve (1) is buckled with the second buckle (121).

3. A reversible polarity joint hub connector as claimed in claim 2, wherein The inner frame sleeve (1) is provided with a first inner frame (13) and a second inner frame (14), the first inner frame (13) and the second inner frame (14) are communicated with each other, the width of the first inner frame (13) is smaller than that of the second inner frame (14), the first inner frame (13) faces the fiber optic cable (2), and the second inner frame (14) faces the first pair of plug (3) and the second pair of plug (4).

4. A reversible polarity joint hub connector as claimed in claim 3, wherein The second inner frame (14) is provided with a first mounting port (141) and a second mounting port (142) side by side at one end facing the first pair of plug (3) and the second pair of plug (4), the bottom and the side of the first mounting port (141) and the second mounting port (142) are provided with mounting grooves (143), and the center of the second inner frame (14) is provided with a U-shaped stop (144).

5. The reversible polarity joint hub connector of claim 3 wherein The unlocking tail cover (6) includes an unlocking frame (61) and a tail cover (62) buckled with the unlocking frame (61), both sides of the unlocking frame (61) are provided with a first buckle window (611) buckled with a first buckle (111) and a gap (612) avoiding a gear (122), the tail cover (62) of the unlocking tail cover (6) is sleeved on the outside of the optical fiber cable (2), the unlocking frame (61) is provided with a buckling wall (614) extending to the upper side of the outer frame sleeve (5), the elastic buckle (63) is arranged at one end of the buckling wall (614) facing the outside, the bottom of the elastic buckle (63) is provided with a space two (55) between the inner frame sleeve (1) and the top of the outer frame sleeve (5), the elastic buckle (63) is arranged at the bottom of the buckling wall (614) and two are arranged, the two elastic buckles (63) are provided with a positioning groove (6142), the bottom of the positioning groove (6142) is provided with a positioning gap groove (6143), the elastic buckle (63) and the positioning groove (6142) are arranged in the space two (55), and the first buckle window (611) is provided with a space three (615) between one end facing the elastic buckle (63) and the first buckle (111).

6. A reversible polarity joint hub connector as claimed in claim 5, wherein The outer frame sleeve (5) includes an outer frame body (52) sleeved on the outside of the inner frame sleeve (1), a first outer frame head (53) fixedly connected with the outer frame body (52) and sleeved on the outside of the first pair of plugs (3), and a second outer frame head (54) fixedly connected with the outer frame body (52) and sleeved on the outside of the second pair of plugs (4), the outer frame body (52) is provided with a second buckle window (521) buckled with a second buckle (121), the end of the outer frame body (52) towards the second buckle window (521) is limited in the space one (123), the top of the outer frame body (52) is provided with a positioning column (525) matched with the positioning gap groove (6143), and a positioning ridge (526) fixedly connected with the positioning column (525) and engaged with the positioning groove (6142), the elastic buckle (51) includes a first elastic piece (531) arranged at the top of the first outer frame head (53) and a second elastic piece (541) arranged at the top of the second outer frame head (54), and the first elastic piece (531) and the second elastic piece (541) are the same in structure.

7. A reversible polarity joint hub connector as in claim 6, wherein The top part of the first elastic sheet (531) is fixedly connected with an elastic pressing arc arm (5311) towards the outer frame body (52), part of the elastic pressing arc arm (5311) is arranged in the second space (55), the elastic pressing arc arm (5311) extends over the top part of the outer frame body (52) and the inner frame sleeve (1), the elastic pressing arc arm (5311) is arched upwards, the top part of the elastic pressing arc arm (5311) is provided with a buckle hole (53111), the elastic pressing buckle (63) is buckled with the buckle hole (53111), the top part of the elastic pressing arc arm (5311) abuts against the buckling wall (614), and one end of the buckle hole (53111) towards the tail sleeve (62) is provided with a connecting chamfer (53112) connecting the buckle hole (53111) and the top part of the elastic pressing arc arm (5311).

Images