Protective shell assembly of optical fiber connector

Abstract

The invention relates to an optical fiber connector protection shell assembly comprising an outer protection sleeve member which comprises an outer protection sleeve pipe used for accommodating an optical fiber connector, a waterproof sealing cover blocking the front end of the outer protection sleeve pipe, and a waterproof sealing plug blocking the tail end of the outer protection sleeve pipe, the waterproof sealing plug is provided with a threading hole for an optical cable to pass through. The anti-falling pull rope is connected to the outer protection sleeve, one end of the anti-falling pull rope is detachably connected with the waterproof sealing plug, and the other end of the anti-falling pull rope is rotationally connected with the waterproof sealing cover. According to the invention, the optical fiber connector is assembled in the outer protective sleeve in a sealing manner, so that the sealing performance is improved, the waterproof performance is improved, and the use of a common preformed end optical fiber connector in an outdoor scene requiring waterproof performance is realized. The waterproof sealing plug and the waterproof sealing cover are connected to the outer protective sleeve through the anti-falling pull rope, so that the risk of falling during high-altitude operation of an operator is eradicated, and the construction operation efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of optical fiber connectors, and in particular to an optical fiber connector protective shell assembly. Background Art

[0002] With the large-scale application of fiber to the home (FTTH), it is inevitable to use a large number of fiber optic connectors; fiber optic connectors are the most used optical passive devices in fiber optic communication systems. Most fiber optic connectors are composed of three parts: two fiber optic connectors and a coupler; the two fiber optic connectors are installed into the tail ends of the two optical fibers; the coupler plays the role of aligning the sleeve. The scope of use of fiber optic connectors is relatively wide. In the long-term use of fiber optic connectors, especially when used outdoors, the fiber optic adapter needs to have waterproof performance.

[0003] In the related art, when the optical fiber connector is used outdoors, it is required to have good waterproof performance. In order to enable the optical fiber connector to have good waterproof performance, it is usually necessary to add a protective sleeve to the optical fiber connector. One end of the protective sleeve is connected to a waterproof sealing plug that seals the protective sleeve, and the other end of the protective sleeve is connected to a waterproof sealing cover that seals the protective sleeve. The enclosed space formed by the protective sleeve, the waterproof sealing plug and the waterproof sealing cover makes the optical fiber connector waterproof, dustproof and weather-resistant.

[0004] When installing the optical fiber connector in the closed space formed by the outer protective sleeve, the waterproof sealing plug and the waterproof sealing cover, it is necessary to pre-select and disassemble the assembled outer protective sleeve, the waterproof sealing plug and the waterproof sealing cover into loose parts, and then first assemble the optical fiber connector in the outer protective sleeve, and then put the waterproof sealing plug on the optical cable at the end of the optical fiber connector and seal it with one end of the outer protective sleeve, and finally connect the waterproof sealing cover to the other end of the outer protective sleeve.

[0005] However, when installing and removing the outer protective sleeve, waterproof sealing plug and waterproof sealing cover, the outer protective sleeve, waterproof sealing plug and waterproof sealing cover are small in size and light in weight and are easy to slip from the hands of the operator. Especially when the operator is in a high-altitude working environment, the outer protective sleeve, waterproof sealing plug and waterproof sealing cover fall, which affects the operator's operation and construction, reducing the construction efficiency. Summary of the invention

[0006] An embodiment of the present application provides a fiber optic connector protective shell assembly to solve the problem in the related art that when installing and removing the waterproof sealing plugs and waterproof sealing covers at both ends of the protective sleeve, the waterproof sealing plugs and waterproof sealing covers are easily slipped from the hands of the operators due to their small size and light weight.

[0007] A first aspect of an embodiment of the present application provides an optical fiber connector protective shell assembly, comprising:

[0008] An outer protection kit, the outer protection kit comprising an outer protection sleeve for accommodating the optical fiber connector, a waterproof sealing cover sealed at the front end of the outer protection sleeve, and a waterproof sealing plug sealed at the end of the outer protection sleeve, wherein the waterproof sealing plug is provided with a threading hole for inserting the optical cable;

[0009] An anti-fall pull rope is connected to the outer protective sleeve, one end of the anti-fall pull rope is detachably connected to the waterproof sealing plug, and the other end of the anti-fall pull rope is rotatably connected to the waterproof sealing cover.

[0010] In some embodiments: the waterproof sealing plug is made of a flexible sealing material, and a cutout connected to the threading hole is radially opened on the outer wall of the waterproof sealing plug, and the length of the cutout runs through both ends of the waterproof sealing plug;

[0011] The outer wall of the waterproof sealing plug is provided with grooves located on both sides of the incision, and the grooves extend to one end of the waterproof sealing plug, and the grooves are in a "V"-shaped or "U"-shaped structure.

[0012] In some embodiments: the waterproof sealing plug is cylindrical in structure, and the diameter of the waterproof sealing plug gradually decreases from the middle to both ends, and the end opening of the outer protective sleeve is a bell mouth that matches the waterproof sealing plug;

[0013] The end of the outer protective sleeve is threadedly connected with a first nut for fastening the waterproof sealing plug inside the outer protective sleeve, and one end of the anti-fall pull rope is connected to the waterproof sealing plug after passing through the first nut.

[0014] In some embodiments: the anti-fall pull rope comprises a first ring sleeved on the outer wall of the outer protective sleeve, and the first ring is provided with a first pull rope connected to the waterproof sealing plug;

[0015] And a second ring sleeved on the outer wall of the waterproof sealing cover, the second ring is provided with a second pull rope connected to the first ring, and the outer wall of the waterproof sealing cover is provided with an annular groove connected to the second ring.

[0016] A second aspect of an embodiment of the present application provides an optical fiber connector protective shell assembly, comprising:

[0017] An outer protection kit, the outer protection kit comprising an outer protection sleeve for accommodating the optical fiber connector, a waterproof sealing cover sealed at the front end of the outer protection sleeve, and a waterproof sealing plug sealed at the end of the outer protection sleeve, wherein the waterproof sealing plug is provided with a threading hole for inserting the optical cable;

[0018] The outer protective sleeve includes a front sleeve and a rear sleeve which are coaxial and axially slidably connected to each other. The front end of the front sleeve is threadedly connected to the waterproof sealing cover, and the end of the rear sleeve is threadedly connected to a second nut which fixes the waterproof sealing plug in the rear sleeve.

[0019] In some embodiments: a first sealing ring is provided between the front sleeve and the rear sleeve, and the front end of the rear sleeve is threadedly connected to a connector for axially and circumferentially positioning the optical fiber connector on the rear sleeve.

[0020] In some embodiments: the connector includes an inner sleeve threadedly connected to the front end of the rear sleeve, and the front end of the inner sleeve is provided with a positioning slot connected to and accommodating the optical fiber connector;

[0021] The front end of the inner liner sleeve extends outwardly from two symmetrically arranged elastic arms, and the elastic arms are provided with barbs for axially positioning the optical fiber connector in the positioning slot;

[0022] A notch communicating with the inner wall of the liner sleeve is radially provided on the outer wall of the liner sleeve, and the notch extends to both ends of the liner sleeve.

[0023] In some embodiments: one end of the second nut is provided with an external thread threadedly connected to the end of the rear sleeve, and the other end of the second nut is provided with a polygonal inner hole;

[0024] One end of the waterproof sealing cover away from the front sleeve is provided with a polygonal head matched with the polygonal inner hole, and the axis of the polygonal head is perpendicular to the axis of the waterproof sealing cover.

[0025] In some embodiments: the second nut includes a left half nut and a right half nut that are connected to each other, one end of the left half nut and the right half nut together form an external thread that is threadedly connected to the end of the rear section sleeve, and the other ends of the left half nut and the right half nut together form the polygonal inner hole.

[0026] In some embodiments: a second sealing ring is provided at one end of the waterproof sealing cover and is sealed to the front sleeve, and an escape groove for evading the optical cable is provided on the polygonal head.

[0027] The beneficial effects of the technical solution provided by this application include:

[0028] An embodiment of the present application provides a fiber optic connector protective shell assembly. Since the fiber optic connector protective shell assembly of the present application is provided with an outer protective kit, the outer protective kit includes an outer protective sleeve for accommodating the fiber optic connector, a waterproof sealing cover sealed at the front end of the outer protective sleeve, and a waterproof sealing plug sealed at the end of the outer protective sleeve, the waterproof sealing plug is provided with a threading hole for inserting the optical cable; an anti-fall pull rope, the anti-fall pull rope is connected to the outer protective sleeve, one end of the anti-fall pull rope is detachably connected to the waterproof sealing plug, and the other end of the anti-fall pull rope is rotatably connected to the waterproof sealing cover.

[0029] Therefore, the outer protective kit of the optical fiber connector protective shell assembly of the present application uses an outer protective sleeve, a waterproof sealing plug and a waterproof sealing cover to form a waterproof closed space for accommodating the optical fiber connector. During assembly, the optical fiber connector is first inserted into the outer protective sleeve, and then the waterproof sealing plug is sleeved on the optical cable at the end of the optical fiber connector and then sealed and connected with the end of the outer protective sleeve. Finally, the waterproof sealing cover is sealed and connected with the front end of the outer protective sleeve to seal the optical fiber connector in the outer protective kit, thereby improving the sealing performance and the waterproof performance, and realizing the outdoor use of ordinary pre-terminated optical fiber connectors in scenes requiring waterproof performance.

[0030] In addition, the optical fiber connector protective shell assembly of the present application is provided with an anti-falling pull rope on the outer protective sleeve, one end of the anti-falling pull rope is detachably connected to the waterproof sealing plug, and the other end of the anti-falling pull rope is rotatably connected to the waterproof sealing cover. The anti-falling pull rope connects the waterproof sealing plug and the waterproof sealing cover to the outer protective sleeve. When installing and removing the waterproof sealing plug and the waterproof sealing cover, the waterproof sealing plug and the waterproof sealing cover are always connected to the outer protective sleeve, eliminating the risk of falling of the operator during high-altitude operation and improving the construction operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 This is a schematic diagram of the structure of the first viewing angle of the embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the structure of the second viewing angle of the embodiment of the present application;

[0034] Figure 3 This is a cross-sectional schematic diagram of an external protective sleeve according to an embodiment of the present application;

[0035] Figure 4This is a schematic diagram of the structure of the waterproof sealing plug and the anti-fall pull rope according to the embodiment of the present application;

[0036] Figure 5 This is a schematic structural diagram of another embodiment of the present application from a first viewing angle;

[0037] Figure 6 This is a structural schematic diagram of another embodiment of the present application from a second viewing angle;

[0038] Figure 7 It is a cross-sectional schematic diagram of another embodiment of the present application;

[0039] Figure 8 This is a schematic structural diagram of a waterproof sealing cover according to another embodiment of the present application;

[0040] Fig. 9 This is a schematic structural diagram of a second nut according to another embodiment of the present application;

[0041] Fig.10 This is a schematic structural diagram of a connecting member according to another embodiment of the present application.

[0042] Reference numerals:

[0043] 10. External protection kit; 11. External protection sleeve; 12. Waterproof sealing plug; 13. Waterproof sealing cover; 14. First nut; 15. Second nut; 16. Connector; 17. First sealing ring; 18. Second sealing ring;

[0044] 20. Anti-fall pull rope; 21. First ring; 22. First pull rope; 23. Second ring; 24. Second pull rope; 30. Optical fiber connector; 31. Optical cable;

[0045] 111, bell mouth; 112, front sleeve; 113, rear sleeve; 121, threading hole; 122, cutout; 123, groove; 131, polygonal head; 132, avoidance groove;

[0046] 151. External thread; 152. Polygonal inner hole; 153. Left half nut; 154. Right half nut; 161. Inner sleeve; 162. Positioning slot; 163. Elastic arm; 164. Barb; 165. Notch. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] An embodiment of the present application provides a fiber optic connector protective shell assembly, which can solve the problem in the related art that when installing and removing the waterproof sealing plugs and waterproof sealing covers at both ends of the protective sleeve, the waterproof sealing plugs and waterproof sealing covers are easily slipped from the hands of the operators due to their small size and light weight.

[0049] See also Figures 1 to 4 As shown, the first aspect of the embodiment of the present application provides an optical fiber connector protective shell assembly, comprising:

[0050] The outer protection kit 10 includes an outer protection sleeve 11 for accommodating the optical fiber connector 30, a waterproof sealing cover 13 sealed at the front end of the outer protection sleeve 11, and a waterproof sealing plug 12 sealed at the end of the outer protection sleeve 11, and a threading hole 121 for inserting the optical cable 31 is opened on the waterproof sealing plug 12.

[0051] The anti-falling pull rope 20 is connected to the outer protective sleeve 11, one end of the anti-falling pull rope 20 is detachably connected to the waterproof sealing plug 12, and the other end of the anti-falling pull rope 20 is rotatably connected to the waterproof sealing cover 13. The waterproof sealing plug 12 is plug-in-pull connected to one end of the anti-falling pull rope 20, so that the waterproof sealing plug 12 and the anti-falling pull rope 20 can be assembled together.

[0052] The outer protective sleeve 11 is a hollow tube structure, and a cavity is formed inside the outer protective sleeve 11 for accommodating the optical fiber connector 30. The front end of the outer protective sleeve 11 is provided with a front opening connected to the cavity, and the end of the outer protective sleeve 11 is provided with an end opening connected to the cavity. The waterproof sealing plug 12 is sealed and connected to the end of the outer protective sleeve 11 to close the end opening.

[0053] The waterproof sealing cover 13 is threadedly connected to the front end of the outer protective sleeve 11 to close the front end opening. The waterproof sealing cover 13 can be a dust cap threadedly connected to the outer protective sleeve 11, or an adapter threadedly connected to the outer protective sleeve 11. The waterproof sealing cover 13 is rotatably connected to the anti-fall pull rope 20, so that the waterproof sealing cover 13 is threadedly connected to the outer protective sleeve 11.

[0054] Before the outer protective sleeve 11 is connected to the adapter, a dust cap is connected to the outer protective sleeve 11 to form a waterproof and closed space for accommodating the optical fiber connector 30; when the outer protective sleeve 11 is connected to the adapter, a waterproof and closed space for accommodating the optical fiber connector 30 is formed after the adapter is connected to the outer protective sleeve 11.

[0055] When the dust cap is connected to the outer protective sleeve 11 through the anti-fall pull rope 20, the anti-fall pull rope 20 is used to prevent the dust cap from falling. When the adapter is connected to the outer protective sleeve 11 through the anti-fall pull rope 20, the anti-fall pull rope 20 is used to prevent the outer protective sleeve 11 from falling.

[0056] The outer protection kit 10 of the optical fiber connector protective shell assembly of the embodiment of the present application utilizes the outer protection sleeve 11 , the waterproof sealing plug 12 and the waterproof sealing cover 13 to form a waterproof closed space for accommodating the optical fiber connector 30 .

[0057] During assembly, the optical fiber connector 30 is first inserted into the outer protective sleeve 11 , and then the waterproof sealing plug 12 is sleeved on the optical cable 31 at the end of the optical fiber connector 30 and then sealed and connected to the end of the outer protective sleeve 11 .

[0058] Finally, the waterproof sealing cover 13 is sealed and connected to the front end of the outer protective sleeve 11 to seal the optical fiber connector 30 in the outer protective kit 10, thereby improving the sealing performance and waterproof performance and realizing the outdoor use of the ordinary pre-terminated optical fiber connector 30 in scenarios requiring waterproof performance.

[0059] In addition, the optical fiber connector protective shell assembly of the embodiment of the present application is provided with an anti-fall pull rope 20 on the outer protective sleeve 11, one end of the anti-fall pull rope 20 is detachably connected to the waterproof sealing plug 12, and the other end of the anti-fall pull rope 20 is rotatably connected to the waterproof sealing cover 13.

[0060] The anti-fall pull rope 20 connects the waterproof sealing plug 12 and the waterproof sealing cover 13 to the outer protective sleeve 11. When installing and removing the waterproof sealing plug 12 and the waterproof sealing cover 13, the waterproof sealing plug 12 and the waterproof sealing cover 13 are always connected to the outer protective sleeve 11, eliminating the risk of workers falling when working at high altitudes and improving construction work efficiency.

[0061] In some optional implementations: See Figure 4 As shown, an embodiment of the present application provides a fiber optic connector protective shell assembly, wherein the waterproof sealing plug 12 of the fiber optic connector protective shell assembly is a flexible sealing material, and a cutout 122 connecting to a threading hole 121 is radially opened on the outer wall of the waterproof sealing plug 12, and the length of the cutout 122 runs through both ends of the waterproof sealing plug 12.

[0062] The outer wall of the waterproof sealing plug 12 is provided with grooves 123 located on both sides of the cutout 122, and the grooves extend to one end of the waterproof sealing plug 12, and the grooves 123 are in a "V" or "U" shape. When the waterproof sealing plug 12 is sleeved on the optical cable 31 at the end of the optical fiber connector 30, the cutout 122 is switched from a closed state to an open state from the groove 123 position by hand or by using a tool, and the waterproof sealing plug 12 is sleeved on the optical cable 31 from the cutout 122.

[0063] In some optional implementations: See Figures 1 to 4 As shown, the embodiment of the present application provides a fiber optic connector protective shell assembly, the waterproof sealing plug 12 of the fiber optic connector protective shell assembly is a cylindrical structure, and the diameter of the waterproof sealing plug 12 gradually decreases from the middle to the two ends. The end opening of the outer protective sleeve 11 is a bell mouth 111 adapted to the diameter of the waterproof sealing plug 12.

[0064] The end of the outer protective sleeve 11 is threadedly connected with a first nut 14 for fastening the waterproof sealing plug 12 in the outer protective sleeve 11, and one end of the anti-fall pull rope 20 is inserted into the first nut 14 and connected to the waterproof sealing plug 12. When the first nut 14 is threaded with the end of the outer protective sleeve 11, the waterproof sealing plug 12 is squeezed and fastened in the bell mouth 111.

[0065] The inner diameter of the first nut 14 is smaller than the outer diameter of the waterproof sealing plug 12. When one end of the anti-fall pull rope 20 is inserted into the first nut 14 and connected to the waterproof sealing plug 12, the first nut 14 is covered on the anti-fall pull rope 20 by the waterproof sealing plug 12 to prevent the first nut 14 from falling when installing or removing the waterproof sealing plug 12.

[0066] In some optional implementations: See Figures 1 to 4 As shown, an embodiment of the present application provides a fiber optic connector protective shell assembly, the anti-fall pull rope 20 of the fiber optic connector protective shell assembly includes a first ring 21 sleeved on the outer wall of the outer protective sleeve 11, and the first ring 21 is provided with a first pull rope 22 connected to the waterproof sealing plug 12.

[0067] A second ring 23 is sleeved on the outer wall of the waterproof sealing cover 13, a second pull rope 24 connected to the first ring 21 is provided on the second ring 23, and an annular groove connected to the second ring 23 is provided on the outer wall of the waterproof sealing cover 13, so that the waterproof sealing cover 13 can rotate freely relative to the second ring 23.

[0068] The first pull rope 22 of the embodiment of the present application is connected between the first ring 21 and the waterproof sealing plug 12, and the second pull rope 24 is connected between the second ring 23 and the first ring 21. The first pull rope 22 is plug-in-plug connected to one end of the waterproof sealing plug 12. The first pull rope 22 and the second pull rope 24 are bent into a "U" shape.

[0069] See also Figures 5 to 7 As shown, the second aspect of the embodiment of the present application provides an optical fiber connector protective shell assembly, comprising:

[0070] The outer protection kit 10 includes an outer protection sleeve 11 for accommodating the optical fiber connector 30, a waterproof sealing cover 13 sealed at the front end of the outer protection sleeve 11, and a waterproof sealing plug 12 sealed at the end of the outer protection sleeve 11, and the waterproof sealing plug 12 is provided with a threading hole 121 for inserting the optical cable 31.

[0071] The outer protective sleeve 11 comprises a front sleeve 112 and a rear sleeve 113 which are coaxial and axially slidably connected to each other, and the rear sleeve 113 is partially located inside the front sleeve 112. The front end of the front sleeve 112 is threadedly connected to the waterproof sealing cover 13, and the end of the rear sleeve 113 is threadedly connected to a second nut 15 which fixes the waterproof sealing plug 12 inside the rear sleeve 113.

[0072] The outer protective sleeve 11 of the embodiment of the present application comprises a front sleeve 112 and a rear sleeve 113 which are coaxial and axially slidably connected to each other, and the rear sleeve 113 is partially located in the front sleeve 112. The front sleeve 112 and the rear sleeve 113 can slide axially relative to each other to adjust the length of the outer protective sleeve 11, so that the outer protective sleeve 11 can accommodate optical fiber connectors 30 of different specifications and lengths, thereby improving the universal performance of the outer protective set 10.

[0073] In some optional implementations: See Figure 7 As shown, an embodiment of the present application provides a fiber optic connector protective shell assembly, in which a first sealing ring 17 that is sealed and connected to each other is provided between the front sleeve 112 and the rear sleeve 113 of the fiber optic connector protective shell assembly. The first sealing ring 17 is used to seal the gap between the front sleeve 112 and the rear sleeve 113 to improve the waterproof performance of the connection between the front sleeve 112 and the rear sleeve 113.

[0074] The front end of the rear sleeve 113 is threadedly connected with a connector 16 for axially and circumferentially positioning the optical fiber connector 30 on the rear sleeve 113. The connector 16 is threadedly connected to the front end of the rear sleeve 113, which facilitates the installation or removal of the connector 16 and the rear sleeve 113, and facilitates the replacement of the connector 16 adapted to different types of optical fiber connectors 30. The connector 16 can be adapted to any one of an SC connector, an FC connector, an LC connector, an ST connector, and an XC connector.

[0075] In some optional implementations: See Figure 7 and Fig.10 As shown, an embodiment of the present application provides a fiber optic connector protective shell assembly, wherein the connecting component 16 of the fiber optic connector protective shell assembly includes an inner liner sleeve 161 threadedly connected to the front end of the rear section sleeve 113, and the front end of the inner liner sleeve 161 is provided with a positioning slot 162 that is connected to and partially accommodates the fiber optic connector 30.

[0076] Two elastic arms 163 are symmetrically arranged at the front end of the liner sleeve 161, and the elastic arms 163 are provided with barbs 164 for axially positioning the optical fiber connector 30 in the positioning slot 162. A notch 165 is radially opened on the outer wall of the liner sleeve 161 to communicate with the inner wall of the liner sleeve 161, and the notch 165 extends to both ends of the liner sleeve 161.

[0077] In the embodiment of the present application, a positioning slot 162 is provided at the front end of the inner sleeve 161 to connect and partially accommodate the optical fiber connector 30. The outer shell of the optical fiber connector 30 can be snap-fitted and positioned in the positioning slot 162 to achieve axial and circumferential positioning. In addition, two elastic arms 163 extend from the front end of the inner sleeve 161. The barbs 164 provided on the elastic arms 163 are used to snap-fit ​​the optical fiber connector 30 to prevent the optical fiber connector 30 from falling out of the positioning slot 162.

[0078] When assembling the fiber optic connector 30 on the connector 16, firstly, the liner sleeve 161 is sleeved onto the optical cable 31 at the end of the fiber optic connector 30 through the notch 165, and then the fiber optic connector 30 is inserted into the positioning slot 162 of the liner sleeve 161 until the barb 164 on the elastic arm 163 is engaged with the outer shell of the fiber optic connector 30, thereby positioning the fiber optic connector 30 circumferentially and axially on the connector 16.

[0079] In some optional implementations: See Figures 6 to 9 As shown, the embodiment of the present application provides a fiber optic connector protective shell assembly, in which one end of the second nut 15 of the fiber optic connector protective shell assembly is provided with an external thread 151 threadedly connected to the end of the rear sleeve 113, and the other end of the second nut 15 is provided with a polygonal inner hole 152. The end of the waterproof sealing cover 13 away from the front sleeve 112 is provided with a polygonal head 131 adapted to the polygonal inner hole 152, and the axis of the polygonal head 131 is perpendicular to the axis of the waterproof sealing cover 13.

[0080] The second nut 15 of the embodiment of the present application is threadedly connected to the end of the rear sleeve 113 through an external thread 151 to seal and fix the waterproof sealing plug 12 inside the rear sleeve 113. A polygonal inner hole 152 is provided at the other end of the second nut 15, and the polygonal head 131 at the front end of the waterproof sealing cover 13 is adapted to the polygonal inner hole 152, so as to tighten the second nut 15 on the rear sleeve 113. The polygonal inner hole 152 is preferably, but not limited to, a hexagonal inner hole, and the polygonal head 131 is preferably, but not limited to, a hexagonal head.

[0081] When the second nut 15 is threadedly connected to the end of the rear sleeve 113, the second nut 15 can be pre-connected to the rear sleeve 113 by holding the second nut 15 first, and then the waterproof sealing cover 13 is removed, and the polygonal head 131 of the waterproof sealing cover 13 is inserted into the polygonal inner hole 152 of the second nut 15. The second nut 15 is fastened to the rear sleeve 113 by rotating the waterproof sealing cover 13, thereby improving the waterproof sealing performance of the waterproof sealing plug 12.

[0082] In some optional implementations: See Figures 6 to 9 As shown, the embodiment of the present application provides a fiber optic connector protective shell assembly, wherein the second nut 15 of the fiber optic connector protective shell assembly includes a left half nut 153 and a right half nut 154 that are butted against each other. One end of the left half nut and the right half nut together form an external thread 151 that is threadedly connected to the end of the rear sleeve 113, and the other ends of the left half nut 153 and the right half nut 154 together form a polygonal inner hole 152.

[0083] In the embodiment of the present application, the second nut 15 is divided into a left half nut 153 and a right half nut 154, and the left half nut 153 and the right half nut 154 are designed to be split, so that the left half nut 153 and the right half nut 154 can be easily disassembled and then put on the optical cable 31. After the left half nut 153 and the right half nut 154 are put on the optical cable 31 and then connected to form the second nut 15, they are threadedly connected to the end of the rear sleeve 113.

[0084] One end of the waterproof sealing cover 13 is provided with a second sealing ring 18 sealedly connected to the front sleeve 112, and the polygonal head 131 is provided with an escape groove 132 for escaping the optical cable 31. The waterproof sealing cover 13 is threadedly connected to the front sleeve 112, and the second sealing ring 18 is sealedly connected between the waterproof sealing cover 13 and the front sleeve 112, thereby improving the waterproof sealing performance of the connection between the waterproof sealing cover 13 and the front sleeve 112.

[0085] The polygonal head 131 is provided with an escape groove 132 for escaping the optical cable 31. The escape groove 132 is used to avoid the optical cable 31 located in the polygonal inner hole 152 when the polygonal head 131 is inserted into the polygonal inner hole 152 of the second nut 15. After the optical cable 31 is located in the escape groove 132, the waterproof sealing cover 13 can rotate around the optical cable 31, and the second nut 15 can be smoothly tightened on the rear sleeve 113.

[0086] How it works

[0087] An embodiment of the present application provides a fiber optic connector protective shell assembly. Since the fiber optic connector protective shell assembly of the present application is provided with an outer protective kit 10, the outer protective kit 10 includes an outer protective sleeve 11 for accommodating a fiber optic connector 30, a waterproof sealing cover 13 sealed at the front end of the outer protective sleeve 11, and a waterproof sealing plug 12 sealed at the end of the outer protective sleeve 11, and the waterproof sealing plug 12 is provided with a threading hole 121 for inserting an optical cable 31; an anti-fall pull rope 20, the anti-fall pull rope 20 is connected to the outer protective sleeve 11, one end of the anti-fall pull rope 20 is detachably connected to the waterproof sealing plug 12, and the other end of the anti-fall pull rope 20 is rotatably connected to the waterproof sealing cover 13.

[0088] Therefore, the outer protection kit 10 of the optical fiber connector protective shell assembly of the present application uses the outer protection sleeve 11, the waterproof sealing plug 12 and the waterproof sealing cover 13 to form a waterproof closed space for accommodating the optical fiber connector 30. During assembly, the optical fiber connector 30 is first inserted into the outer protection sleeve 11, and then the waterproof sealing plug 12 is sleeved on the optical cable 31 at the end of the optical fiber connector 30 and then sealed and connected to the end of the outer protection sleeve 11, and finally the waterproof sealing cover 13 is sealed and connected to the front end of the outer protection sleeve 11, so that the optical fiber connector 30 is sealed and assembled in the outer protection kit 10, which improves the sealing performance and the waterproof performance, and realizes the outdoor use of ordinary pre-terminated optical fiber connectors in scenes where waterproof performance is required.

[0089] In addition, the optical fiber connector protective shell assembly of the present application is provided with an anti-falling pull rope 20 on the outer protective sleeve 11, one end of the anti-falling pull rope 20 is detachably connected to the waterproof sealing plug 12, and the other end of the anti-falling pull rope 20 is rotatably connected to the waterproof sealing cover 13. The anti-falling pull rope 20 connects the waterproof sealing plug 12 and the waterproof sealing cover 13 to the outer protective sleeve 11. When installing and removing the waterproof sealing plug 12 and the waterproof sealing cover 13, the waterproof sealing plug 12 and the waterproof sealing cover 13 are always connected to the outer protective sleeve 11, eliminating the risk of falling of the operator during high-altitude operations and improving the construction efficiency.

[0090] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0091] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0092] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An optical fiber connector protective shell assembly, characterized in that: include: An outer protection kit (10), the outer protection kit (10) comprising an outer protection sleeve (11) for accommodating an optical fiber connector (30), a waterproof sealing cover (13) sealed at the front end of the outer protection sleeve (11), and a waterproof sealing plug (12) sealed at the end of the outer protection sleeve (11), wherein the waterproof sealing plug (12) is provided with a threading hole (121) for inserting an optical cable (31); An anti-fall pull rope (20), the anti-fall pull rope (20) is connected to the outer protective sleeve (11), one end of the anti-fall pull rope (20) is detachably connected to the waterproof sealing plug (12), and the other end of the anti-fall pull rope (20) is rotatably connected to the waterproof sealing cover (13).

2. The optical fiber connector protective shell assembly according to claim 1, characterized in that: The waterproof sealing plug (12) is made of a flexible sealing material, and a cutout (122) communicating with the threading hole (121) is radially opened on the outer wall of the waterproof sealing plug (12), and the length of the cutout (122) runs through both ends of the waterproof sealing plug (12); The outer wall of the waterproof sealing plug (12) is provided with grooves (123) located on both sides of the cutout (122), the grooves (123) extending to one end of the waterproof sealing plug (12), and the grooves (123) are in a "V"-shaped or "U"-shaped structure.

3. The optical fiber connector protective shell assembly according to claim 1, characterized in that: The waterproof sealing plug (12) is cylindrical in structure, and the diameter of the waterproof sealing plug (12) gradually decreases from the middle to both ends, and the end opening of the outer protective sleeve (11) is a bell mouth (111) adapted to the waterproof sealing plug (12); The end of the outer protective sleeve (11) is threadedly connected with a first nut (14) for fastening the waterproof sealing plug (12) inside the outer protective sleeve (11); one end of the anti-fall pull rope (20) is inserted into the first nut (14) and connected to the waterproof sealing plug (12).

4. An optical fiber connector protective shell assembly according to claim 1 or 3, characterized in that: The anti-fall pull rope (20) comprises a first circular ring (21) sleeved on the outer wall of the outer protective sleeve (11), and a first pull rope (22) connected to the waterproof sealing plug (12) is provided on the first circular ring (21); and a second circular ring (23) sleeved on the outer wall of the waterproof sealing cover (13), wherein the second circular ring (23) is provided with a second drawstring (24) connected to the first circular ring (21), and the outer wall of the waterproof sealing cover (13) is provided with an annular groove connected to the second circular ring (23).

5. An optical fiber connector protective shell assembly, characterized in that: include: An outer protection kit (10), the outer protection kit (10) comprising an outer protection sleeve (11) for accommodating an optical fiber connector (30), a waterproof sealing cover (13) sealed at the front end of the outer protection sleeve (11), and a waterproof sealing plug (12) sealed at the end of the outer protection sleeve (11), wherein the waterproof sealing plug (12) is provided with a threading hole (121) for inserting an optical cable (31); The outer protective sleeve (11) comprises a front sleeve (112) and a rear sleeve (113) which are coaxial and axially slidably connected to each other, the front end of the front sleeve (112) is threadedly connected to the waterproof sealing cover (13), and the end of the rear sleeve (113) is threadedly connected to a second nut (15) for fixing the waterproof sealing plug (12) in the rear sleeve (113).

6. The optical fiber connector protective shell assembly according to claim 5, characterized in that: A first sealing ring (17) is provided between the front sleeve (112) and the rear sleeve (113) which are sealed to each other, and a connecting piece (16) is threadedly connected to the front end of the rear sleeve (113) for axially and circumferentially positioning the optical fiber connector (30) on the rear sleeve (113).

7. The optical fiber connector protective shell assembly according to claim 6, characterized in that: The connecting member (16) comprises an inner sleeve (161) threadedly connected to the front end of the rear sleeve (113); the front end of the inner sleeve (161) is provided with a positioning slot (162) for connecting and accommodating the optical fiber connector (30); Two symmetrically arranged elastic arms (163) extend from the front end of the inner lining sleeve (161), and the elastic arms (163) are provided with barbs (164) for axially positioning the optical fiber connector (30) in the positioning slot (162); A notch (165) communicating with the inner wall of the inner lining sleeve (161) is radially provided on the outer wall of the inner lining sleeve (161), and the notch (165) extends to both ends of the inner lining sleeve (161).

8. The optical fiber connector protective shell assembly according to claim 7, characterized in that: One end of the second nut (15) is provided with an external thread (151) threadedly connected to the end of the rear sleeve (113), and the other end of the second nut (15) is provided with a polygonal inner hole (152); The waterproof sealing cover (13) is provided with a polygonal head (131) adapted to the polygonal inner hole (152) at one end away from the front sleeve (112), and the axis of the polygonal head (131) is perpendicular to the axis of the waterproof sealing cover (13).

9. The optical fiber connector protective shell assembly according to claim 8, characterized in that: The second nut (15) comprises a left half nut (153) and a right half nut (154) which are butt-jointed with each other, one end of the left half nut (153) and the right half nut (154) jointly forming an external thread (151) which is threadedly connected to the end of the rear sleeve (113), and the other end of the left half nut (153) and the right half nut (154) jointly enclose the polygonal inner hole (152).

10. The optical fiber connector protective shell assembly according to claim 8, characterized in that: One end of the waterproof sealing cover (13) is provided with a second sealing ring (18) which is sealed to the front sleeve (112), and the polygonal head (131) is provided with an escape groove (132) for escaping the optical cable (31).

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