Optical fiber connector and plugging method

Abstract

The invention provides an optical fiber connector and a plugging method. The optical fiber connector comprises a plug, a tail assembly and a threaded sleeve. The plug comprises a plug butt joint end; the tail assembly comprises a tail part, the tail part is provided with a tail butt joint end, and the plug butt joint end and the tail butt joint end are oppositely arranged; the first end of the threaded sleeve is arranged at the tail butt joint end in a sleeving mode so that the threaded sleeve can be limited to the preset position of the tail butt joint end, and the first end of the threaded sleeve is rotationally connected with the tail butt joint end; the second end of the threaded sleeve sleeves and is in threaded connection with the butt joint end of the plug, the end part of the butt joint end of the plug is convexly provided with a first positioning flange, the end part of the butt joint end of the tail part is convexly provided with a second positioning flange, the second positioning flange is positioned in the threaded sleeve, and the second positioning flange is used for abutting against the first positioning flange when the second end of the threaded sleeve is in threaded connection with the butt joint end of the plug. The optical fiber connector not only has better use convenience, but also has better use stability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of optical fiber connectors, and in particular to an optical fiber connector and a plugging method. Background Art

[0002] With the rapid development of the communications industry, the market demand for fiber optic connectors, as important components of optical communications, is also increasing. As an important part of the fiber optic connector, the tail attachment mainly plays the role of fixing and protecting the optical fiber. The cable passes through the tail attachment, and its passing direction needs to be selected according to the use occasion. Traditional tail attachments can generally be divided into straight tail attachments and curved tail attachments according to the direction. The curved tail attachment can be used to make the cable pass through the radial direction of the fiber optic connector. If the optical cable needs to pass through a specific direction, the tail attachment needs to be designed to enable it to achieve this function. The existing curved tail attachment has a complex structure and high cost. The tail attachment has high requirements when docking with the plug, and it is inconvenient to operate manually. It can only achieve a single positioning function, and it is difficult to adjust multiple circumferential positions. In order to solve the above problems, some manufacturers have made further research and development.

[0003] Prior art, such as patent CN110456457B, proposes a connector and its curved tail attachment, which includes a curved sleeve assembly and a straight sleeve, the curved sleeve assembly includes a straight section, one of the straight sleeve and the straight section is provided with a stop protrusion, and the other is provided with at least two positioning recesses arranged along the circumference of the straight section and used for plugging and disengaging with the stop protrusion, an elastic member is provided between the straight sleeve and the curved sleeve assembly, and the elastic member applies a force to the curved sleeve assembly to force the straight section to move so that the stop protrusion enters the corresponding positioning recess. The curved tail attachment of the above connector does not rely on a plug, and the straight sleeve does not need to rotate. It only needs to compress the elastic member along the axial direction of the straight sleeve so that the stop protrusion is disengaged from the positioning recess along the axial direction of the straight sleeve and unlocked. When the curved sleeve assembly rotates to a set position along the circumference of the straight sleeve, the stop protrusion enters the positioning recess along the axial direction of the straight sleeve under the action of the elastic member and is locked, so that the angle adjustment of the curved sleeve assembly in the circumferential direction can be achieved.

[0004] However, before the above-mentioned connector is plugged in, the stop protrusion and the positioning recess need to be aligned so that when the straight sleeve and the straight tube section are plugged in, the stop protrusion can be located in the positioning recess, thereby realizing the positioning of the bent sleeve assembly, making it more difficult to position the straight sleeve and the straight tube section, thereby greatly reducing the convenience of use of the connector; at the same time, the above-mentioned connector connects and fixes the bent sleeve assembly and the straight sleeve through the cooperation of the stop protrusion, the positioning recess and the elastic member, which makes the fixing ability of the bent sleeve assembly and the straight sleeve weak, thereby the bent sleeve assembly and the straight sleeve are prone to detachment from each other during use of the connector, thereby greatly reducing the stability of the connector. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an optical fiber connector and a plugging method that are not only convenient to use but also stable to use.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] An optical fiber connector, comprising:

[0008] A plug, the plug comprising a plug docking end;

[0009] A tail assembly, the tail assembly comprising a tail component, the tail component being provided with a tail docking end, the plug docking end being arranged opposite to the tail docking end;

[0010] A screw sleeve, wherein the first end of the screw sleeve is sleeved on the tail butt end, so that the screw sleeve is limited to a preset position of the tail butt end, and the first end of the screw sleeve is rotatably connected to the tail butt end;

[0011] The second end of the screw sleeve is used to be sleeved and screwed on the plug butt end when the plug butt end is plugged into the tail butt end. A first positioning flange is protruding from the end of the plug butt end, and a second positioning flange is protruding from the end of the tail butt end. The second positioning flange is located in the screw sleeve, and the second positioning flange is used to abut against the first positioning flange when the second end of the screw sleeve is screwed on the plug butt end.

[0012] In one embodiment, a limiting groove matched with the second positioning flange is formed at the end of the plug docking end, and the limiting groove is used to limit the tail docking end at a preset position of the plug docking end, and the second positioning flange is used to slide into the limiting groove and always abut against the first positioning flange when the second end of the screw sleeve is screwed to the plug docking end.

[0013] In one embodiment, the number of the limiting grooves is two, and the first positioning flange is located between the two limiting grooves; the second positioning flange is used to slide into one of the limiting grooves and always abut against the first positioning flange when the second end of the screw sleeve is screwed to the plug docking end.

[0014] In one embodiment, the tail assembly also includes an elastic sealing ring, the tail docking end is also formed with a docking groove and a docking interface connected to the docking groove, the plug docking end is inserted into the docking groove through the docking interface, the elastic sealing ring is installed in the docking groove, the outer peripheral wall of the elastic sealing ring is in interference fit with the inner peripheral wall of the docking groove, and the inner peripheral wall of the elastic sealing ring is in interference fit with the outer peripheral wall of the plug docking end.

[0015] In one of the embodiments, the tail butt end and the screw sleeve jointly form an annular positioning groove, the elastic sealing ring is arranged in the annular positioning groove, and the outer peripheral wall of the elastic sealing ring is in interference fit with the inner wall of the annular positioning groove.

[0016] In one embodiment, the tail assembly also includes a clamping ring, the inner circumferential wall of the first end of the screw sleeve is formed with a first annular limit groove, the outer circumferential wall of the tail docking end is formed with a second annular limit groove corresponding to the first annular limit groove, the outer circumferential wall of the clamping ring is in sliding and limiting contact with the inner circumferential wall of the first annular limit groove, and the inner circumferential wall of the clamping ring is in sliding and limiting contact with the inner circumferential wall of the second annular limit groove, so that the first end of the screw sleeve is limitedly installed on the tail docking end by the clamping ring.

[0017] In one embodiment, the inner peripheral wall of the second end of the screw sleeve is formed with a first threaded abutment surface, and the outer peripheral wall of the plug docking end is also formed with a second threaded abutment surface arranged corresponding to the first threaded abutment surface.

[0018] In one embodiment, the first positioning flange and the two limiting grooves together form a positioning structure, the number of the positioning structures is several, each of the positioning structures is correspondingly arranged at a preset position of the end of the plug docking end, and there is a preset angle between each of the positioning structures.

[0019] In one of the embodiments, the preset angle ranges from 0° to 180°.

[0020] A plugging method, using the optical fiber connector described in any of the above embodiments for plugging, the plugging method comprising:

[0021] Aligning the tail butt end of the tail assembly with the plug butt end of the plug, and inserting the plug butt end into the second end of the screw sleeve;

[0022] The screw sleeve is rotated relative to the plug butt end along the locking direction, so that the screw sleeve drives the tail butt end to gradually approach the plug butt end, until the end of the tail butt end abuts against the end of the plug butt end;

[0023] Rotate the tail assembly relative to the plug butt end until the first positioning flange and the second positioning flange abut against each other, so that the tail butt end is positioned at a preset position of the plug butt end;

[0024] The screw sleeve is continuously rotated along the locking direction relative to the plug butt end until the screw sleeve is locked and fixed with the plug butt end.

[0025] Compared with the prior art, the present invention has at least the following advantages:

[0026] 1. In the above-mentioned optical fiber connector, the first end of the screw sleeve is sleeved on the tail butt end so that the screw sleeve is limited to a preset position of the tail butt end, and the first end of the screw sleeve is rotatably connected to the tail butt end, and the second end of the screw sleeve is used to be sleeved and screwed on the plug butt end when the plug butt end and the tail butt end are plugged in, so that the tail butt end of the tail assembly can be securely plugged and fixed to the plug butt end of the plug through the screw sleeve, thereby greatly improving the use stability of the optical fiber connector.

[0027] 2. Since the end of the plug butt end is provided with a first positioning flange, the end of the tail butt end is provided with a second positioning flange, the second positioning flange is located in the screw sleeve, and the second positioning flange is used to abut against the first positioning flange when the second end of the screw sleeve is screwed to the plug butt end, so that when the top of the first positioning flange and the top of the second positioning flange abut against the end of the tail butt end and the end of the plug butt end respectively, the user can rotate the tail assembly relative to the plug butt end to make the first positioning flange and the second positioning flange abut against each other, so as to position the tail butt end at the preset position of the plug butt end. The plug and the tail assembly are fixed together by the friction between the top of the first positioning flange and the end of the tail butt end and the friction between the top of the second positioning flange and the end of the plug butt end, so that the tail butt end is firmly positioned at the preset position of the plug butt end, which greatly reduces the difficulty of positioning the tail butt end at the preset position of the plug butt end, thereby making the optical fiber connector have better stability in use and better convenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of an optical fiber connector according to an embodiment;

[0030] Figure 2 for Figure 1 A schematic diagram of the local structure of the optical fiber connector shown;

[0031] Figure 3 for Figure 2 A partial enlarged schematic diagram of the optical fiber connector shown;

[0032] Figure 4 for Figure 3 Another partial enlarged schematic diagram of the optical fiber connector shown;

[0033] Figure 5 for Figure 1 A partial structural schematic diagram of the optical fiber connector shown;

[0034] Figure 6 for Figure 1 Another partial structural schematic diagram of the optical fiber connector shown;

[0035] Figure 7 for Figure 1 Another partial structural schematic diagram of the optical fiber connector shown;

[0036] Figure 8 for Figure 1 Another partial structural schematic diagram of the optical fiber connector shown;

[0037] Fig. 9 for Figure 8 Another structural schematic diagram of the plug connector shown;

[0038] Fig.10 for Figure 8 Another structural schematic diagram of the plug connector shown;

[0039] Fig.11 The figure is a schematic diagram of the steps of the plugging method of the optical fiber connector.

[0040] Reference numerals: 10, optical fiber connector; 100, plug; 110, plug docking end; 111, first positioning flange; 112, limiting groove; 113, second threaded abutment surface; 120, positioning structure; 200, tail assembly; 210, tail component; 211, tail docking end; 2111, second positioning flange; 2112, docking groove; 2113, docking interface; 2114, annular positioning groove; 2115, second annular limiting groove; 220, elastic seal Sealing ring; 230, clamping ring; 212, third thread abutment surface; 240, tail shell; 241, fourth thread abutment surface; 242, sixth thread abutment surface; 250, tail sleeve; 251, clamping groove; 260, tail nut; 261, buckle; 262, fifth thread abutment surface; 263, annular abutment flange; 270, buffer sealing ring; 300, threaded sleeve; 310, first annular limiting groove; 320, first thread abutment surface; 400, preset angle. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0042] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0044] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0045] like Figures 1 to 10 As shown, an optical fiber connector 10 of an embodiment includes a plug 100, a tail assembly 200 and a screw sleeve 300; the plug 100 includes a plug docking end 110, the tail assembly 200 includes a tail component 210, the tail component 210 is provided with a tail docking end 211, the plug docking end 110 and the tail docking end 211 are arranged opposite to each other, the first end of the screw sleeve 300 is sleeved on the tail docking end 211, so that the screw sleeve 300 is limited to a preset position of the tail docking end 211, and the first end of the screw sleeve 300 is rotatably connected to the tail docking end 211, and the second end of the screw sleeve 300 is used to be sleeved and screwed on the plug docking end 110 when the plug docking end 110 and the tail docking end 211 are plugged, so that the tail docking end 211 of the tail assembly 200 can be securely plugged and fixed to the plug docking end 110 of the plug 100 through the screw sleeve 300, thereby greatly improving the stability of the optical fiber connector 10.

[0046] like Figures 1 to 10As shown, further, a first positioning flange 111 is convexly provided at the end of the plug docking end 110, and a second positioning flange 2111 is convexly provided at the end of the tail docking end 211, and the second positioning flange 2111 is located in the screw sleeve 300, and the second positioning flange 2111 is used to abut against the first positioning flange 111 when the second end of the screw sleeve 300 is screwed to the plug docking end 110, so that when the top of the first positioning flange 111 and the top of the second positioning flange 2111 abut against the end of the tail docking end 211 and the end of the plug docking end 110 respectively, the user can rotate the tail assembly 200 relative to the plug docking end 110 to make the first positioning flange 111 and the second positioning flange 2111 abut against each other, so as to position the tail docking end 211 At the preset position of the plug docking end 110, the outlet end of the tail assembly 200 is oriented towards a preset direction, and when the screw sleeve 300 is locked and fixed with the plug docking end 110, the plug 100 and the tail assembly 200 can rely on the friction between the top of the first positioning flange 111 and the end of the tail docking end 211 and the friction between the top of the second positioning flange 2111 and the end of the plug docking end 110, so that the tail docking end 211 is firmly positioned at the preset position of the plug docking end 110, which greatly reduces the difficulty of positioning the tail docking end 211 at the preset position of the plug docking end 110, so that the optical fiber connector 10 has good stability in use and good convenience in use.

[0047] In this embodiment, when the plug butt end 110 is plugged into the tail butt end 211, first, the tail butt end 211 of the tail assembly 200 is aligned with the plug butt end 110 of the plug 100, and the tail butt end 211 is inserted into the second end of the screw sleeve 300; then, the screw sleeve 300 is rotated relative to the plug butt end 110 along the locking direction, so that the screw sleeve 300 drives the tail butt end 211 to gradually approach the plug butt end 110, until the end of the tail butt end 211 and the end of the plug butt end 110 abut; the tail assembly 200 is rotated relative to the plug butt end 110 until the first positioning flange 111 and the second positioning flange 2111 abut against each other, so that the tail butt end 211 is positioned at the preset position of the plug butt end 110; finally, the screw sleeve 300 continues to rotate relative to the plug butt end 110 along the locking direction until the screw sleeve 300 and the plug butt end 110 are locked and fixed.

[0048] The above-mentioned optical fiber connector 10, since the first end of the screw sleeve 300 is sleeved on the tail docking end 211, so that the screw sleeve 300 is limited to a preset position of the tail docking end 211, and the first end of the screw sleeve 300 is rotatably connected to the tail docking end 211, the second end of the screw sleeve 300 is used to be sleeved and screwed to the plug docking end 110 when the plug docking end 110 and the tail docking end 211 are plugged in, so that the tail docking end 211 of the tail assembly 200 can be securely plugged and fixed to the plug docking end 110 of the plug 100 through the screw sleeve 300, thereby greatly improving the use stability of the optical fiber connector 10.

[0049] Since the end of the plug butt end 110 is provided with a first positioning flange 111, the end of the tail butt end 211 is provided with a second positioning flange 2111, and the second positioning flange 2111 is located in the screw sleeve 300, the second positioning flange 2111 is used to abut against the first positioning flange 111 when the second end of the screw sleeve 300 is screwed to the plug butt end 110, so that when the top of the first positioning flange 111 and the top of the second positioning flange 2111 abut against the end of the tail butt end 211 and the end of the plug butt end 110 respectively, the user can rotate the tail assembly 200 relative to the plug butt end 110 to make the first positioning flange 111 and the second positioning flange 2111 abut against each other, so as to position the tail butt end 211 on the plug The butt end 110 is at a preset position, so that the outlet end of the tail assembly 200 faces a preset direction, and when the screw sleeve 300 is locked and fixed with the plug butt end 110, the plug 100 and the tail assembly 200 can rely on the friction between the top of the first positioning flange 111 and the end of the tail butt end 211 and the friction between the top of the second positioning flange 2111 and the end of the plug butt end 110, so that the tail butt end 211 is firmly positioned at the preset position of the plug butt end 110, which greatly reduces the difficulty of positioning the tail butt end 211 at the preset position of the plug butt end 110, so that the optical fiber connector 10 has good stability in use and good convenience in use.

[0050] It can be understood that the plug 100 and the tail assembly 200 rely solely on the friction between the top of the first positioning flange 111 and the end of the tail docking end 211 and the friction between the top of the second positioning flange 2111 and the end of the plug docking end 110, and cannot effectively and securely limit the tail docking end 211 at the preset position of the plug docking end 110, so that under the influence of external factors, the tail assembly 200 is prone to rotate relative to the plug docking end 110, causing the tail docking end 211 to deviate from the preset position of the plug docking end 110, thereby causing the outlet direction of the outlet end of the tail assembly 200 to deviate from the preset direction.

[0051] like Figures 1 to 7 As shown, in order to solve the above problem, in one of the embodiments, a limiting groove 112 matched with the second positioning flange 2111 is formed at the end of the plug docking end 110, and the limiting groove 112 is used to limit the tail docking end 211 at a preset position of the plug docking end 110, and the second positioning flange 2111 is used to slide into the limiting groove 112 and always abut against the first positioning flange 111 when the second end of the screw sleeve 300 is screwed to the plug docking end 110, so that when the first positioning flange 111 and the second positioning flange 2111 abut against each other, the screw sleeve 300 continues to be rotated relative to the plug docking end 110 along the locking direction to drive the tail docking end 211 to move in a direction close to the plug docking end 110, so that the second positioning flange 2111 extends into the limiting groove 112 and is limited in the limiting groove 112, so that the tail docking end 211 can be securely positioned at the preset position of the plug docking end 110.

[0052] like Figures 1 to 7 As shown, further, in one of the embodiments, the number of the limit grooves 112 is two, the first positioning flange is located between the two limit grooves, and the second positioning flange 2111 is used to slide into one of the limit grooves 112 and always abut against the first positioning flange 111 when the second end of the screw sleeve 300 is screwed to the plug docking end 110, so that the tail assembly 200 can be securely positioned at the preset position of the plug docking end 110 regardless of whether it is rotated clockwise or counterclockwise relative to the plug docking end 110, thereby further improving the ease of use of the optical fiber connector 10.

[0053] like Figures 1 to 3 As shown, it can be understood that during the use of the optical fiber connector 10, water vapor, dust and pollutants in the external environment can easily enter the tail component 200, which greatly increases the probability of the optical cable in the tail component 200 being damaged or even broken, thereby greatly increasing the maintenance cost of the optical fiber connector 10. To solve the above problems, in one embodiment, the tail assembly 200 also includes an elastic sealing ring 220, and the tail docking end 211 is also formed with a docking groove 2112 and a docking interface 2113 connected to the docking groove 2112. The plug docking end 110 is inserted into the docking groove 2112 through the docking interface 2113, and the elastic sealing ring 220 is installed in the docking groove 2112. The outer peripheral wall of the elastic sealing ring 220 is in interference fit with the inner peripheral wall of the docking groove 2112, and the inner peripheral wall of the elastic sealing ring 220 is in interference fit with the outer peripheral wall of the plug docking end 110, so as to prevent water vapor, dust and pollutants in the external environment from entering the tail assembly 200 through the gap between the tail docking end 211 and the plug docking end 110, thereby greatly reducing the possibility of damage or even destruction of the optical cable in the tail assembly 200, thereby greatly reducing the maintenance cost of the optical fiber connector 10.

[0054] like Figures 1 to 3 As shown, further, the elastic sealing ring 220 can also play a role of buffering and shock absorption when the plug docking end 110 and the tail docking end 211 are plugged in, thereby preventing the plug docking end 110 and the tail docking end 211 from being damaged or even destroyed due to excessive force, further reducing the maintenance cost of the optical fiber connector 10; at the same time, the plug docking end 110 can also be firmly fixed to the tail docking end 211 through the elastic sealing ring 220.

[0055] like Figures 1 to 3 As shown, in one of the embodiments, the tail butt end 211 and the screw sleeve 300 jointly form an annular positioning groove 2114, and the elastic sealing ring 220 is arranged in the annular positioning groove 2114, and the outer peripheral wall of the elastic sealing ring 220 is in interference fit with the inner wall of the annular positioning groove 2114, so that the elastic sealing ring 220 can be installed and limited in the annular positioning groove 2114, avoiding the phenomenon that the plug butt end 110 brings the elastic sealing ring 220 out of the butt groove 2112 due to excessive friction between the plug butt end 110 and the elastic sealing ring 220 when the tail butt end 211 is separated from the plug butt end 110, thereby further improving the stability of the optical fiber connector 10.

[0056] like Figures 1 to 3 As shown, in the present embodiment, the screw sleeve 300 is formed with a step surface (not shown), and a step groove (not shown) is formed at one end of the tail docking end 2111 relative to the step surface to jointly form an annular positioning groove 2114, and the elastic sealing ring 220 is arranged in the annular positioning groove 2114, and the outer peripheral wall of the elastic sealing ring 220 is in interference fit with the inner wall of the annular positioning groove 2114, so that the elastic sealing ring 220 can be installed and limited in the annular positioning groove 2114, avoiding the phenomenon that the plug docking end 110 brings the elastic sealing ring 220 out of the docking groove 2112 due to excessive friction between the plug docking end 110 and the elastic sealing ring 220 when the tail docking end 211 is separated from the plug docking end 110, thereby further improving the stability of the optical fiber connector 10.

[0057] like Figures 1 to 3As shown, in the present embodiment, the inner wall of the annular positioning groove 2114 is formed with a first smooth abutting surface (not shown), and the outer wall of the plug docking end 110 is formed with a second smooth abutting surface (not shown), the outer wall of the elastic sealing ring 220 is in interference fit with the first smooth abutting surface, and the inner wall of the elastic sealing ring 220 is in interference fit with the second smooth abutting surface, so as to increase the contact area between the elastic sealing ring 220 and the inner wall of the annular positioning groove 2114 and the outer wall of the plug docking end 110, respectively, so that the elastic sealing ring 220 is tightly fitted with the inner wall of the annular positioning groove 2114 and the outer wall of the plug docking end 110, thereby further improving the sealing effect of the elastic sealing ring 220.

[0058] like Figures 1 to 4 As shown, in one embodiment, the tail assembly 200 also includes a clamping ring 230, the inner circumferential wall of the first end of the screw sleeve 300 is formed with a first annular limiting groove 310, and the outer circumferential wall of the tail docking end 211 is formed with a second annular limiting groove 2115 corresponding to the first annular limiting groove 310. The outer circumferential wall of the clamping ring 230 is in sliding contact with the inner circumferential wall of the first annular limiting groove 310, and the inner circumferential wall of the clamping ring 230 is in sliding contact with the inner circumferential wall of the second annular limiting groove 2115, so that the first end of the screw sleeve 300 can pass through the clamping ring 230 is limitedly installed on the tail docking end 211, so that the screw sleeve 300 can be securely positioned at the preset position of the tail docking end 211 through the clamping ring 230, and the tail docking end 211 can rotate relative to the screw sleeve 300, so that when the plug 100 and the tail assembly 200 are plugged in, the tail docking end 211 rotates relative to the plug docking end 110 to make the first positioning flange 111 and the second positioning flange 2111 abut against each other and limit the tail docking end 211, so as to position the tail docking end 211 at the preset position of the plug docking end 110.

[0059] like Figures 2 to 3 As shown, in the present embodiment, the inner wall of the first annular limit groove 310 is formed with a third smooth abutment surface (not shown), and the inner wall of the second annular limit groove 2115 is formed with a fourth smooth abutment surface (not shown), and the clamping ring 230 is respectively slidably limited and abutted with the third smooth abutment surface and the fourth smooth abutment surface to reduce the resistance encountered by the tail assembly 200 when it rotates relative to the screw sleeve 300, so that the user can save time and effort when rotating the tail assembly 200 relative to the screw sleeve 300, thereby greatly improving the ease of use of the optical fiber connector 10.

[0060] like Figures 1 to 7As shown, in one embodiment, the inner peripheral wall of the second end of the screw sleeve 300 is formed with a first threaded abutment surface 320, and the outer peripheral wall of the plug docking end 110 is also formed with a second threaded abutment surface 113 corresponding to the first threaded abutment surface 320, so that the screw sleeve 300 can drive the tail docking end 211 toward or away from the plug docking end 110 through the cooperation between the first threaded abutment surface 320 and the second threaded abutment surface 113, and at the same time, the tail docking end 211 can be firmly fixed to the plug docking end 110, so that the optical fiber connector 10 has better stability in use.

[0061] like Figures 1 to 4 As shown, in the present embodiment, the tail assembly 200 also includes a tail shell 240, the first end of the tail component 210 is fixedly connected to the tail docking end 211, the outer peripheral wall of the second end of the tail component 210 is formed with a third threaded abutment surface 212, and the first end of the tail shell 240 is formed with a fourth threaded abutment surface 241, so that the first end of the tail shell 240 can be threadedly connected to the second end of the tail component 210 through the third threaded abutment surface 212 and the fourth threaded abutment surface 241, so that the first end of the tail shell 240 can be securely fixed to the second end of the tail component 210, and at the same time, it is convenient for the installation and disassembly of the tail shell 240, which greatly reduces the difficulty of replacing the tail shell 240, thereby improving the convenience of use of the optical fiber connector 10.

[0062] like Figures 1 to 4 As shown, in this embodiment, the tail component 210 and the tail docking end 211 are an integrally formed structure to improve the structural compactness of the tail assembly 200 .

[0063] like Figures 1 to 4 As shown, in this embodiment, the tail assembly 200 also includes a tail sleeve 250 and a tail nut 260. The tail sleeve 250 is formed with a slot 251. The inner circumferential wall of the first end of the tail nut 260 is convexly provided with a buckle that matches the slot 251, so that during the assembly process of the tail nut 260 and the tail sleeve 250, the buckle can be snapped into the slot 251, so that the tail sleeve 250 can be securely installed and fixed on the tail nut 260; the inner circumferential wall of the second end of the tail nut 260 is formed with a fifth thread abutment surface, and the tail A sixth threaded abutment surface 242 is formed on the outer peripheral wall of the second end of the shell 240, so that the second end of the tail nut 260 can be threadedly connected to the second end of the tail shell 240 through the fifth threaded abutment surface and the sixth threaded abutment surface 242, so that the second end of the tail nut 260 can be firmly fixed to the second end of the tail shell 240, and at the same time it is convenient for the installation and disassembly of the tail nut 260, which greatly reduces the difficulty of replacing the tail nut 260 and further improves the ease of use of the optical fiber connector 10.

[0064] like Figures 1 to 4As shown, in the present embodiment, the tail assembly 200 further includes a retaining ring (not shown), a crimping sleeve (not shown) and a fastener (not shown). The retaining ring is arranged in the second end of the tail housing 240. The second end of the tail housing 240 is also formed with a positioning hole (not shown). The outer peripheral wall of the retaining ring is formed with a threaded hole (not shown). The fastener is screwed to the threaded hole through the positioning hole so that the retaining ring can be securely installed in the tail housing 240; the crimping sleeve is installed and fixed inside the retaining ring. The crimping sleeve is used to perform cable bundling operations on the optical cables so that the optical cables can be arranged neatly to avoid electromagnetic interference and wear or damage to the outer layer of the optical cables caused by the entanglement of multiple optical cables, thereby further improving the use stability of the optical fiber connector 10 and further reducing the maintenance cost of the optical fiber connector 10.

[0065] like Figures 1 to 4 As shown, in the present embodiment, the tail assembly 200 further includes a buffer sealing ring 270, and an annular abutting flange 263 is also protruded inside the first end of the tail nut 260, and the buffer sealing ring 270 is arranged on a side of the annular abutting flange 263 facing the tail shell 240, and the two side surfaces of the buffer sealing ring 270 are respectively in interference abutment with the annular abutting flange 263 and the end of the second end of the tail shell 240, so that the buffer sealing ring 270 can perform buffering and shock absorption when the tail shell 240 and the tail nut 260 are assembled, thereby preventing the tail shell 240 and the tail nut 260 from being damaged or even destroyed due to excessive force, thereby greatly reducing the maintenance cost of the optical fiber connector 10; at the same time, it can also prevent water vapor, dust and pollutants in the external environment from entering the tail assembly 200 through the gap between the tail shell 240 and the tail nut 260, thereby greatly reducing the possibility of damage or even destruction of the optical cable in the tail assembly 200, further reducing the maintenance cost of the optical fiber connector 10.

[0066] like Figures 5 to 10 As shown, in one of the embodiments, the first positioning flange 111 and the two limiting grooves 112 jointly form a positioning structure 120, and the number of the positioning structures 120 is several, and each positioning structure 120 is correspondingly arranged at a preset position of the end of the plug docking end 110, and there is a preset angle 400 between each positioning structure 120, so that each positioning structure 120 can be designed according to the outlet direction requirement of the outlet end of the tail component 200, so that the outlet end of the tail component 200 can be oriented in the preset direction, and at the same time, the outlet direction of the outlet end of the tail component 200 can be adjusted according to different requirements, thereby greatly increasing the application range of the optical fiber connector 10.

[0067] like Figures 5 to 10As shown, in one embodiment, the value range of the preset angle 400 is 0° to 180°, so as to further increase the application range of the optical fiber connector 10.

[0068] like Figure 2 and Figure 4 As shown, in the present embodiment, the gap between the tail component 210 and the tail shell 240 is a first gap (not shown), and the gap between the outer peripheral wall of the retaining ring and the inner peripheral wall of the tail shell 240 is a second gap (not shown), and sealing rings (not shown) are arranged in the first gap and the second gap to prevent water vapor, dust and pollutants in the external environment from entering the tail assembly 200 through the first gap and the second gap, thereby greatly reducing the possibility of damage or even destruction of the optical cable in the tail assembly 200, thereby greatly reducing the maintenance cost of the optical fiber connector 10.

[0069] The present disclosure also provides a plugging method, which uses the optical fiber connector 10 described in any of the above embodiments for plugging. Further, the plugging method includes some or all of the following steps:

[0070] like Fig.11 As shown, S101, the tail butt end 211 of the tail assembly 200 is aligned with the plug butt end 110 of the plug 100, and the plug butt end 110 is inserted into the second end of the screw sleeve 300;

[0071] In this embodiment, the tail docking end 211 of the tail assembly 200 is aligned with the plug docking end 110 of the plug 100, and the plug docking end 110 is inserted into the second end of the screw sleeve 300 to avoid the need to realign the plug docking end 110 and the tail docking end 211 for plugging due to displacement between the plug docking end 110 and the tail docking end 211 during the plugging process, thereby greatly improving the assembly efficiency of the optical fiber connector 10.

[0072] like Fig.11 As shown, S103, the screw sleeve 300 is rotated relative to the plug butt end 110 along the locking direction, so that the screw sleeve 300 drives the tail butt end 211 to gradually approach the plug butt end 110, until the end of the tail butt end and the end of the plug butt end abut;

[0073] In this embodiment, the screw sleeve 300 is rotated along the locking direction relative to the plug docking end 110, so that the screw sleeve 300 drives the tail docking end 211 to gradually approach the plug docking end 110 until the end of the tail docking end 211 and the end of the plug docking end 110 abut, so that the tail assembly 200 can be fixed to the plug docking end 110 by the screw sleeve 300, and at the same time, the screw sleeve 300 can drive the tail docking end 211 to abut against the plug docking end 110 during the locking process with the plug docking end 110.

[0074] like Fig.11 As shown, S105, the tail assembly 200 is rotated relative to the plug docking end 110 until the first positioning flange 111 and the second positioning flange 2111 abut against each other, so that the tail docking end 211 is positioned at a preset position of the plug docking end 110;

[0075] In this embodiment, the tail assembly 200 is rotated relative to the plug docking end 110 until the first positioning flange 111 and the second positioning flange 2111 abut against each other, so that the tail docking end 211 is positioned at a preset position of the plug docking end 110, so that the optical fiber connector 10 can control the outlet direction of the outlet end of the tail assembly 200 by adjusting the position design of the first positioning protrusion and the second positioning flange 2111, thereby ensuring that the outlet direction of the optical fiber connector 10 can be consistent with the preset direction.

[0076] like Fig.11 As shown, S107, the screw sleeve 300 is continuously rotated along the locking direction relative to the plug butt end 110 until the screw sleeve 300 and the plug butt end 110 are locked and fixed.

[0077] In this embodiment, the screw sleeve 300 is continuously rotated along the locking direction relative to the plug docking end 110 until the screw sleeve 300 is locked and fixed to the plug docking end 110, so that the plug 100 and the tail assembly 200 can rely on the friction between the top of the first positioning flange 111 and the end of the tail docking end 211 and the friction between the top of the second positioning flange 2111 and the end of the plug docking end 110, so that the tail docking end 211 is firmly positioned at the preset position of the plug docking end 110, and at the same time, the emerging end of the tail assembly 200 can be oriented in a preset direction.

[0078] In the above-mentioned plug-in method, first, the tail butt end 211 of the tail assembly 200 is aligned with the plug butt end 110 of the plug 100, and the plug butt end 110 is inserted into the second end of the screw sleeve 300, so that the outer peripheral wall of the plug butt end 110 abuts against the inner peripheral wall of the second end of the screw sleeve 300; then, the screw sleeve 300 is rotated relative to the plug butt end 110 in the locking direction, so that the screw sleeve 300 drives the tail butt end 211 to gradually approach the plug butt end 110, until the end of the tail butt end 211 and the end of the plug butt end 110 abut, so that the tail butt end 211 can be fixed to the plug butt end 110 through the screw sleeve 300; then, the tail assembly 200 is rotated relative to the plug butt end 110 , until the first positioning flange 111 and the second positioning flange 2111 abut against each other, so that the tail docking end 211 is positioned at the preset position of the plug docking end 110, so that the outlet end of the tail assembly 200 faces the preset direction; finally, the screw sleeve 300 is continuously rotated along the locking direction relative to the plug docking end 110 until the screw sleeve 300 and the plug docking end 110 are locked and fixed, so that the plug 100 and the tail assembly 200 can rely on the friction between the top of the first positioning flange 111 and the end of the tail docking end 211 and the friction between the top of the second positioning flange 2111 and the end of the plug docking end 110, so that the tail docking end 211 is firmly positioned at the preset position of the plug docking end 110.

[0079] Furthermore, a limiting groove 112 adapted to the second positioning flange 2111 is formed at the end of the plug butt end 110, and the steps of continuing to rotate the screw sleeve 300 relative to the plug butt end 110 along the locking direction until the screw sleeve 300 is locked and fixed with the plug butt end 110 are specifically as follows:

[0080] The screw sleeve 300 is rotated relative to the plug docking end 110 along the locking direction, so that the second positioning flange 2111 slides into the limiting groove 112 along the side wall of the first positioning flange 111;

[0081] When the second positioning flange 2111 slides into the limiting groove 112 along the side wall of the first positioning flange 111 , the screw sleeve 300 is continuously rotated along the locking direction relative to the plug docking end 110 until the top of the second positioning flange 2111 abuts against the bottom wall of the limiting groove 112 .

[0082] In this embodiment, the screw sleeve 300 is rotated along the locking direction relative to the plug docking end 110 so that the second positioning flange 2111 slides into the limiting groove 112 along the side wall of the first positioning flange 111. When the second positioning flange 2111 slides into the limiting groove 112 along the side wall of the first positioning flange 111, the screw sleeve 300 continues to be rotated along the locking direction relative to the plug docking end 110 until the top of the second positioning flange 2111 abuts against the bottom wall of the limiting groove 112, so that the tail docking end 211 can be securely positioned at the preset position of the plug docking end 110.

[0083] Compared with the prior art, the present invention has at least the following advantages:

[0084] 1. In the above-mentioned plug-in method, since the first end of the screw sleeve 300 is sleeved on the tail docking end 211, so that the screw sleeve 300 is limited to a preset position of the tail docking end 211, and the first end of the screw sleeve 300 is rotatably connected to the tail docking end 211, the second end of the screw sleeve 300 is used to be sleeved and screwed to the plug docking end 110 when the plug docking end 110 and the tail docking end 211 are plugged, so that the tail docking end 211 of the tail assembly 200 can be securely plugged and fixed to the plug docking end 110 of the plug 100 through the screw sleeve 300, thereby greatly improving the use stability of the optical fiber connector 10.

[0085] 2. Since the end of the plug butt end 110 is provided with a first positioning flange 111, the end of the tail butt end 211 is provided with a second positioning flange 2111, and the second positioning flange 2111 is located in the screw sleeve 300, the second positioning flange 2111 is used to abut against the first positioning flange 111 when the second end of the screw sleeve 300 is screwed to the plug butt end 110, so that when the top of the first positioning flange 111 and the top of the second positioning flange 2111 abut against the end of the tail butt end 211 and the end of the plug butt end 110 respectively, the user can rotate the tail assembly 200 relative to the plug butt end 110 to make the first positioning flange 111 and the second positioning flange 2111 abut against each other, so as to position the tail butt end 211 on the plug The head docking end 110 is at a preset position, so that the outlet end of the tail assembly 200 faces a preset direction, and when the screw sleeve 300 is locked and fixed with the plug docking end 110, the plug 100 and the tail assembly 200 can rely on the friction between the top of the first positioning flange 111 and the end of the tail docking end 211 and the friction between the top of the second positioning flange 2111 and the end of the plug docking end 110, so that the tail docking end 211 is firmly positioned at the preset position of the plug docking end 110, which greatly reduces the difficulty of positioning the tail docking end 211 at the preset position of the plug docking end 110, so that the optical fiber connector 10 has good stability in use and good convenience in use.

[0086] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. An optical fiber connector, comprising: A plug, the plug comprising a plug docking end; A tail assembly, the tail assembly comprising a tail component, the tail component being provided with a tail docking end, the plug docking end being arranged opposite to the tail docking end; A screw sleeve, wherein the first end of the screw sleeve is sleeved on the tail butt end, so that the screw sleeve is limited to a preset position of the tail butt end, and the first end of the screw sleeve is rotatably connected to the tail butt end; It is characterized in that the second end of the screw sleeve is used to be sleeved and screwed on the plug butt end when the plug butt end is plugged into the tail butt end, a first positioning flange is protruding from the end of the plug butt end, and a second positioning flange is protruding from the end of the tail butt end, the second positioning flange is located in the screw sleeve, and the second positioning flange is used to abut against the first positioning flange when the second end of the screw sleeve is screwed on the plug butt end.

2. The optical fiber connector according to claim 1, characterized in that: A limiting groove matched with the second positioning flange is formed at the end of the plug docking end, and the limiting groove is used to limit the tail docking end at a preset position of the plug docking end, and the second positioning flange is used to slide into the limiting groove and always abut against the first positioning flange when the second end of the screw sleeve is screwed to the plug docking end.

3. The optical fiber connector according to claim 2, characterized in that: There are two limit grooves, and the first positioning flange is located between the two limit grooves; the second positioning flange is used to slide into one of the limit grooves and always abut against the first positioning flange when the second end of the screw sleeve is screwed to the plug docking end.

4. The optical fiber connector according to claim 1, characterized in that: The tail assembly also includes an elastic sealing ring, and the tail docking end is also formed with a docking groove and a docking interface connected to the docking groove. The plug docking end is inserted into the docking groove through the docking interface, and the elastic sealing ring is installed in the docking groove. The outer peripheral wall of the elastic sealing ring is in interference contact with the inner peripheral wall of the docking groove, and the inner peripheral wall of the elastic sealing ring is in interference contact with the outer peripheral wall of the plug docking end.

5. The optical fiber connector according to claim 4, characterized in that: The tail butt joint end and the screw sleeve together form an annular positioning groove, the elastic sealing ring is arranged in the annular positioning groove, and the outer peripheral wall of the elastic sealing ring is in interference contact with the inner wall of the annular positioning groove.

6. The optical fiber connector according to claim 1, characterized in that: The tail assembly also includes a clamping ring, the inner circumferential wall of the first end of the screw sleeve is formed with a first annular limiting groove, the outer circumferential wall of the tail docking end is formed with a second annular limiting groove corresponding to the first annular limiting groove, the outer circumferential wall of the clamping ring is in sliding and limiting contact with the inner circumferential wall of the first annular limiting groove, and the inner circumferential wall of the clamping ring is in sliding and limiting contact with the inner circumferential wall of the second annular limiting groove, so that the first end of the screw sleeve is limitedly installed on the tail docking end by the clamping ring.

7. The optical fiber connector according to claim 1, characterized in that: The inner peripheral wall of the second end of the screw sleeve is formed with a first thread abutting surface, and the outer peripheral wall of the plug docking end is also formed with a second thread abutting surface arranged corresponding to the first thread abutting surface.

8. The optical fiber connector according to claim 3, characterized in that: The first positioning flange and the two limiting grooves together form a positioning structure. The number of the positioning structures is several, and each positioning structure is correspondingly arranged at a preset position of the end of the plug docking end. There is a preset angle between each positioning structure.

9. The optical fiber connector according to claim 8, characterized in that: The preset angle has a value range of 0° to 180°.

10. A plugging method, characterized in that: The optical fiber connector according to any one of claims 1 to 9 is used for plugging, and the plugging method comprises: Aligning the tail butt end of the tail assembly with the plug butt end of the plug, and inserting the plug butt end into the second end of the screw sleeve; The screw sleeve is rotated relative to the plug butt end along the locking direction, so that the screw sleeve drives the tail butt end to gradually approach the plug butt end, until the end of the tail butt end abuts against the end of the plug butt end; Rotate the tail assembly relative to the plug butt end until the first positioning flange and the second positioning flange abut against each other, so that the tail butt end is positioned at a preset position of the plug butt end; The screw sleeve is continuously rotated along the locking direction relative to the plug butt end until the screw sleeve is locked and fixed with the plug butt end.

Images