Waterproof connector, connector assembly and optical fiber connection box

Abstract

The present invention relates to a waterproof connector, a connector assembly, and a fiber optic connection box, which include: a main body, the main body including a sealing body, a first sealing ring area and a second sealing ring area spaced apart outside the sealing body; a ferrule assembly, the ferrule assembly including a ferrule body located within the sealing body, a ceramic ferrule located within the ferrule body, and a locking assembly on the ferrule body, the locking assembly being configured to slide along the axial direction of the main body to align and lock or unlock two optical fibers within the main body; wherein, relative to the second sealing ring area, the first sealing ring area is biased toward the ceramic ferrule, and the sliding operating position of the locking assembly and the first sealing ring area are located on opposite sides of the second sealing ring area. In this embodiment of the present invention, there is no need to open a hole in the area between the first sealing ring area and the second sealing ring area on the sealing body, thereby ensuring the sealing performance of the area between the first sealing ring area and the second sealing ring area.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber communication, and in particular to a waterproof connector, a connector assembly and an optical fiber connection box. Background Art

[0002] With the large-scale deployment of FTTH (Fiber to the Home), pre-connectorized products are becoming increasingly popular, reducing construction costs, lowering technical requirements, and simplifying installation. Pre-connectorized products prefabricate connectors at both ends of the optical cable before shipment. These connectors are then connected to the equipment at both ends, enabling fiber to the home.

[0003] Prefabricated connectors are generally plugged into adapters or pre-connection boxes for use, and a sealing design is required at the position where the prefabricated connector and the adapter or pre-connection box are plugged into each other to ensure that the prefabricated connection, the adapter and the interior of the pre-connection box are sealed and waterproof after the prefabricated connector and the adapter or pre-connection box are assembled.

[0004] In the related art, the structure of an adapter and a pre-connection box body is as follows: one end of the adapter is installed on the pre-connection box body, the adapter includes a shell, and a ceramic sleeve arranged inside the shell, the shell forms a front plug-in cavity on the front side of the ceramic sleeve, and forms a rear plug-in cavity on the rear side of the ceramic sleeve, the front plug-in cavity is located inside the pre-connection box body, the rear plug-in cavity is located outside the pre-connection box body, and the shell is provided with a sealing protrusion in the rear plug-in cavity, the sealing protrusion is provided in a position close to the ceramic sleeve, so that after the pre-connector is inserted into the rear plug-in cavity, the sealing protrusion is located at the front end of the ferrule of the pre-connector; however, there is currently no waterproof connector product on the market that matches such an adapter.

[0005] Therefore, it is necessary to design a new waterproof connector, connector assembly and optical fiber connection box to overcome the above problems. Summary of the Invention

[0006] The embodiments of the present invention provide a waterproof connector, a connector assembly and an optical fiber connection box to solve the problem in the related art that there is currently no waterproof connector product on the market that matches an adapter with a sealing protrusion located at the front end of the ferrule of the pre-connector.

[0007] In a first aspect, a waterproof connector is provided, comprising: a main body, the main body comprising a sealing body, a first sealing ring area and a second sealing ring area spaced apart are provided outside the sealing body; a ferrule assembly, the ferrule assembly comprising a ferrule body located within the sealing body, a ceramic ferrule provided within the ferrule body, and a locking assembly provided on the ferrule body, the locking assembly being configured to slide along the axial direction of the main body so as to align and lock or unlock two optical fibers inside the main body; wherein, relative to the second sealing ring area, the first sealing ring area is biased closer to the ceramic ferrule, and the sliding operation position of the locking assembly and the first sealing ring area are distributed on opposite sides of the second sealing ring area.

[0008] In some embodiments, the ferrule body has an opening, and the locking assembly includes: a locking pressure block, which is located in the opening; a locking push block, which includes a crimping portion and an operating portion connected to the crimping portion, and the operating portion forms the sliding operating position; when the operating portion is pushed in a direction close to the ceramic ferrule, the operating portion drives the crimping portion to be pressed against the outside of the locking pressure block.

[0009] In some embodiments, the ceramic ferrule is provided with a crimping cavity, and a support block is provided on one side of the crimping cavity; the locking pressure block includes a first pressure block and a second pressure block connected to the first pressure block, the thickness of the second pressure block is less than the thickness of the first pressure block, so that a step is formed between the second pressure block and the first pressure block, the first pressure block enters the crimping cavity, the second pressure block is partially supported by the support block, and the support block is located at the step; when the operating part slides to the unlocking position, the crimping part is pressed on the outside of the second pressure block.

[0010] In some embodiments, the cross-sectional shape of the ferrule body is non-circular, and a through hole matching the cross-sectional shape of the ferrule body is provided in the crimping portion, the ferrule body is at least partially inserted in the through hole, and a crimping surface cooperating with the locking pressure block is provided in the through hole.

[0011] In some embodiments, a notch is provided at the connection between the operating portion and the crimping portion, a first guide surface is provided in the notch, and a second guide surface that cooperates with the first guide surface is provided at the end of the sealing body.

[0012] In some embodiments, the main body includes a connector, which is connected to the sealing body and extends from the connection with the sealing body in a direction away from the first sealing ring area, and the operating part is arranged at the connector; the main body also includes an inner lining rear sleeve, which is detachably connected to the connector.

[0013] In some embodiments, the operating part extends in a direction away from the crimping part to form an anti-mumbling part; a wire buckle assembly is provided in the inner lining rear sleeve, and a flip cover is provided on the inner lining rear sleeve. When the operating part is pushed in a direction close to the ceramic insert and is not pushed into place, the anti-mumbling part prevents the flip cover from being buckled on the inner lining rear sleeve.

[0014] In some embodiments, a groove is formed between the anti-foolproof portion and the operating portion. When the operating portion slides to the unlocked position and the flip cover and the liner back cover are in a buckled state, the flip cover at least partially enters the groove.

[0015] In some embodiments, the main body includes a connector, which is connected to the sealing body and extends from the connection with the sealing body in a direction away from the first sealing ring area; the main body also includes a lining rear sleeve, which is detachably connected to the connector; the sliding operating position is arranged at the connector and is located between the sealing body and the lining rear sleeve.

[0016] In a second aspect, a connector assembly is provided, which includes an adapter and the above-mentioned waterproof connector that cooperates with the adapter.

[0017] In a third aspect, a fiber optic connection box is provided, which includes a box body, an adapter is provided on the box body, and the above-mentioned waterproof connector matched with the adapter.

[0018] The beneficial effects brought about by the technical solution provided by the present invention include:

[0019] An embodiment of the present invention provides a waterproof connector, a connector assembly, and a fiber optic connection box. Since a first sealing ring area and a second sealing ring area are provided on the sealing body outside the ceramic ferrule, the first sealing ring area and the second sealing ring area can be sealed and waterproof at the cooperation point between the front end of the connector and the adapter, and the sliding operation position of the locking assembly is not provided at a position between the first sealing ring area and the second sealing ring area, so there is no need to open a hole in the area between the first sealing ring area and the second sealing ring area on the sealing body, thereby ensuring the sealing performance of the area between the first sealing ring area and the second sealing ring area, and the first sealing ring area is located at a position close to the ceramic ferrule, so it can cooperate with the adapter with the sealing protrusion provided at the front end of the ferrule of the pre-connector for sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic exploded perspective view of a waterproof connector provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the combined structure of a waterproof connector provided by an embodiment of the present invention;

[0023] Figure 3 A schematic exploded perspective view of a main body provided by an embodiment of the present invention;

[0024] Figure 4 A schematic exploded perspective view of a ferrule assembly provided in an embodiment of the present invention;

[0025] Figure 5 A schematic structural diagram of the liner rear sleeve provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the three-dimensional structure of the main body, the ferrule assembly, and the lining back cover provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of the flip cover provided by an embodiment of the present invention when it cannot be fastened;

[0028] Figure 8 A schematic diagram of the structure of an embodiment of the present invention when the housing cannot be inserted;

[0029] Figure 9 A schematic diagram of the structure of the flip cover after it is buckled, provided by an embodiment of the present invention;

[0030] Figure 10 A schematic diagram of the structure of the housing provided by an embodiment of the present invention after insertion;

[0031] Figure 11 A schematic diagram of the structure of the locking assembly provided by an embodiment of the present invention when it is unlocked;

[0032] Figure 12 A schematic diagram of the structure of the locking assembly provided by an embodiment of the present invention when locked;

[0033] Figure 13 An exploded schematic diagram of the protective cap and the third sealing ring provided in an embodiment of the present invention;

[0034] Figure 14 A schematic structural diagram of a wire tie assembly provided in an embodiment of the present invention;

[0035] Figure 15 An exploded schematic diagram of a tensile assembly provided in an embodiment of the present invention;

[0036] Figure 16 A schematic cross-sectional view of an optical fiber connection box provided in an embodiment of the present invention;

[0037] Figure 17 A schematic cross-sectional view of an adapter provided in an embodiment of the present invention.

[0038] In the picture:

[0039] 100. Waterproof connector; 1. Main body; 11. Sealing body; 111. First sealing ring area; 112. Second sealing ring area; 113. Second guide surface; 12. Connecting body;

[0040] 2. Ferrule assembly; 21. Ferrule body; 211. Opening; 22. Ceramic ferrule; 221. Pressing cavity; 222. Support block; 23. Locking assembly; 231. Locking block; 2311. First block; 2312. Second block;

[0041] 232, locking push block; 2321, crimping portion; 2322, operating portion; 2323, notch; 2324, first guide surface; 2325, foolproof portion; 2326, groove; 24, spring;

[0042] 3. Liner back cover; 31. Flip cover; 32. Slide; 4. Wire buckle assembly; 41. Wire buckle base; 42. Wire buckle cover;

[0043] 5. Housing; 6. Sealing plug; 7. Tensile assembly; 71. Sealing push block; 72. Fourth sealing ring; 73. Tensile housing; 74. Metal teeth;

[0044] 81. Tail sheath; 82. Optical cable; 83. Optical fiber; 9. Protective cap; 91. Third sealing ring;

[0045] 200. Adapter; 201. Adapter body; 202. Insertion cavity; 203. Ceramic sleeve; 204. Step; 205. Sealing protrusion structure; 300. Box body. DETAILED DESCRIPTION

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0047] The embodiment of the present invention provides a waterproof connector, which can solve the problem in the related art that there is currently no waterproof connector product on the market that matches with an adapter whose sealing protrusion is located at the front end of the ferrule of the pre-connector.

[0048] See also Figures 1 to 2 、 Figure 11 and Figure 12 As shown, a waterproof connector 100 provided in an embodiment of the present invention may include: a main body 1, the main body 1 includes a sealing body 11, and a first sealing ring area 111 and a second sealing ring area 112 are arranged on the outside of the sealing body 11 at intervals, wherein the sealing body 11 here can be understood as the sealing body 11, except for the holes located axially at both ends thereof, no holes are opened in the area between the first sealing ring area 111 and the second sealing ring area 112 on the side surface of the sealing body 11, so that even if water enters the area between the first sealing ring area 111 and the second sealing ring area 112, it will not enter the interior of the connector or adapter 200; a core assembly 2, the core assembly 2 may include a core body 21 located in the sealing body 11, a ceramic core 22 is provided in the core body 21, and the ceramic core 22 is also located in the sealing body 11, wherein the front end of the ceramic core 22 may exceed the front end of the sealing body 11, and the rear end of the ceramic core 22 may be located in the sealing body. In the body 11, a locking assembly 23 is further provided on the core body 21, and the locking assembly 23 is configured to slide along the axial direction of the main body 1 so that the two optical fibers 83 inside the main body 1 are aligned, locked or unlocked, wherein one optical fiber 83 is located inside the ceramic core 22, and the other optical fiber 83 can be located behind the previous optical fiber 83, and the two optical fibers 83 can be aligned and locked by the locking assembly 23; wherein, relative to the second sealing ring area 112, the first sealing ring area 111 is biased towards the ceramic core 22, that is, the first sealing ring area 111 is biased towards the front end of the sealing body 11, and the second sealing ring area 112 is biased towards the rear end of the sealing body 11, and the sliding operation position of the locking assembly 23 and the first sealing ring area 111 are distributed on opposite sides of the second sealing ring area 112, that is, the sliding operation position is located behind the second sealing ring area 112, and is not located between the first sealing ring area 111 and the second sealing ring area 112.

[0049] Furthermore, the waterproof connector 100 may further include a shell 5 , which may be sleeved outside the main body 1 and may cooperate with the second sealing ring area 112 on the main body 1 to achieve sealing between the front end of the shell 5 and the main body 1 .

[0050] In this embodiment, since a first sealing ring area 111 and a second sealing ring area 112 are provided on the sealing body 11 outside the ceramic ferrule 22, the first sealing ring area 111 and the second sealing ring area 112 can be sealed and waterproof at the joint between the front end of the connector and the adapter 200, wherein the first sealing ring area 111 is located near the ceramic ferrule 22. After the waterproof connector 100 and the adapter 200 are matched, the first sealing ring area 111 can cooperate with the sealing protrusion structure 205 near the ceramic ferrule inside the adapter 200, so that the joint between the waterproof connector 100 and the adapter 200 is waterproof, and the second sealing ring area 112 can be sealed with the outer shell 5 outside the main body 1 to prevent water from entering the rear of the waterproof connector 100; and since the sliding operation position is located at the first The rear of the second sealing ring area 112 is also located behind the ceramic core 22. The sliding operation position of the locking assembly 23 is not set between the first sealing ring area 111 and the second sealing ring area 112, so there is no need to open a hole in the area between the first sealing ring area 111 and the second sealing ring area 112 on the sealing body 11 to place the sliding operation position. The area between the first sealing ring area 111 and the second sealing ring area 112 on the sealing body 11 is a complete structure. There is no through hole or any opening connected to the inside of the sealing body 11, which ensures the sealing performance of the area between the first sealing ring area 111 and the second sealing ring area 112. Therefore, it can be sealed in conjunction with the adapter 200 with the sealing protrusion structure 205 set at the front end of the core of the pre-connector, which can meet outdoor use conditions.

[0051] In this embodiment, the first sealing ring area 111 can be located at the front end of the sealing body or at a position close to the front end, and the second sealing ring area 112 can be located at the rear end of the sealing body 11 or at a position close to the rear end. Preferably, the first sealing ring area 111 is located at the front end of the sealing body 11, and the second sealing ring area 112 is located at the rear end of the sealing body 11, so that the first sealing ring area 111 and the second sealing ring area 112 are respectively located at opposite ends of the sealing body 11, and the first sealing ring area 111 located at the front end is more suitable for an adapter that sets the sealing protrusion structure 205 at the front end of the connector core. It should be understood that the sealing body shown in the present embodiment is provided with two sealing ring areas, namely the first sealing ring area 111 and the second sealing ring area 112. In other embodiments, sealing rings can also be provided before the first sealing ring area 111, between the first sealing ring area 111 and the second sealing ring area 112, or after the second sealing ring area 112. It is not necessary to provide only two sealing ring areas on the sealing body.

[0052] It can be understood that in the above embodiment, the outer wall surface of the sealing body 11 located between the first sealing ring area 111 and the second sealing ring area 112 is complete, that is, there is no through hole or any opening connected to the interior of the sealing body 11 in the area between the first sealing ring area 111 and the second sealing ring area 112, so that even if water enters the area between the first sealing ring area 111 and the second sealing ring area 112, it will not enter the interior of the connector or adapter 200.

[0053] See also Figure 4 As shown, in some embodiments, the ferrule body 21 has an opening 211, and the locking assembly 23 may include: a locking pressure block 231, the locking pressure block 231 is located in the opening 211, and the locking pressure block 231 can enter the opening 211 to press the two optical fibers 83; a locking push block 232, the locking push block 232 may include a crimping portion 2321 and an operating portion 2322 connected to the crimping portion 2321, and the operating portion 2322 forms the sliding operating position; when the operating portion 2322 is pushed in the direction close to the ceramic ferrule 22 (that is, pushed forward), the operating portion 2322 drives the crimping portion 2321 to be pressed against the locking portion The outer side of the pressing block 231 (the outer side here means that the crimping portion 2321 is located on the outer side of the locking pressing block 231 in the radial direction, and the locking pressing block 231 is closer to the axis of the main body 1) so that the locking pressing block 231 presses the optical fiber 83, and the two optical fibers 83 are in an aligned and locked state; when the operating portion 2322 is pushed in the direction away from the ceramic ferrule 22 (that is, pushed backward), the operating portion 2322 will drive the crimping portion 2321 to gradually move in the direction away from the locking pressing block 231, and at the same time, the area of ​​the crimping portion 2321 pressing on the locking pressing block 231 will gradually decrease until the locking pushing block 232 moves to the unlocked position, at which time the locking pressing block 231 no longer presses the two optical fibers 83. In this embodiment, an opening 211 is provided on the ferrule body 21 to accommodate the locking pressure block 231, so that the locking pressure block 231 is not easily detached from the ferrule body 21, and through the cooperation between the locking push block 232 and the locking pressure block 231, the movement of the locking push block 232 in the axial direction can be converted into the compression of the locking pressure block 231 in the radial direction.

[0054] In this embodiment, when the locking push block 232 is pushed, the two optical fibers 83 may be aligned in the axial direction but not in the radial direction. By pressing the locking pressure block 231 in the radial direction, the two optical fibers 83 can be aligned in the radial direction.

[0055] Furthermore, in some embodiments, the ceramic ferrule 22 may be provided with a crimping cavity 221, and the optical fiber 83 may be exposed in the crimping cavity 221. A support block 222 is provided on one side of the crimping cavity 221, and the support block 222 is preferably located behind the crimping cavity 221; the locking pressure block 231 may include a first pressure block 2311 and a second pressure block 2312 connected to the first pressure block 2311, the thickness of the second pressure block 2312 is less than the thickness of the first pressure block 2311, wherein the thickness here can be understood as the thickness in the radial direction, so that a step is formed between the second pressure block 2312 and the first pressure block 2311, and the surfaces of the first pressure block 2311 and the second pressure block 2312 in contact with the crimping portion 2321 may be flush, and the first pressure block 2311 enters the In the crimping cavity 221, the second pressure block 2312 is partially supported by the support block 222, and the support block 222 is located at the step. The support block 222 can prevent the first pressure block 2311 from escaping the crimping cavity 221 in the axial direction, and the support block 222 is supported at the connection between the first pressure block 2311 and the second pressure block 2312. The support block 222 can form a seesaw-like structure with the first pressure block 2311 and the second pressure block 2312. When the operating part 2322 slides to the unlocking position, the crimping part 2321 is pressed against the outside of the second pressure block 2312. At this time, one end of the locking pressure block 231 is pressed down, and the other end (that is, the position where the first pressure block 2311 is set) will be slightly tilted. At this time, the first pressure block 2311 will not press the optical fiber 83. In this embodiment, by setting the crimping cavity 221 and the support block 222, the locking pressure block 231 can be formed into a structure similar to a seesaw. With such a setting, after the crimping portion 2321 moves out of the position of the first pressure block 2311 and is crimped onto the second pressure block 2312, it can drive the first pressure block 2311 to automatically curl up, thereby achieving unlocking.

[0056] Preferably, the width of the first pressing block 2311 may be greater than the width of the second pressing block 2312, where the width may be understood as the width along the left-right direction, wherein the width of the second pressing block 2312 is designed to be relatively narrow to facilitate positioning.

[0057] In some embodiments, see Figure 4As shown, the cross-sectional shape of the ferrule body 21 is non-circular, that is, it can be a square or elliptical structural shape, and the crimping portion 2321 can be provided with a through hole that matches the cross-sectional shape of the ferrule body 21. The ferrule body 21 is at least partially inserted into the through hole, and the through hole is provided with a crimping surface that cooperates with the locking pressure block 231. In this embodiment, the cross-sectional shape of the ferrule body 21 is designed to be non-circular, and the crimping portion 2321 is provided with a through hole of matching shape, so that after the ferrule body 21 is inserted into the through hole, the ferrule body 21 and the crimping portion 2321 basically will not rotate relative to each other at will, ensuring that the locking push block 232 can always move linearly along the axial direction, and the crimping surface provided inside the through hole can always maintain accurate docking with the locking pressure block 231, and is not easily misaligned.

[0058] See also Figure 11 and Figure 12 As shown, in some optional embodiments, a notch 2323 is provided at the connection between the operating portion 2322 and the crimping portion 2321, and the lowest point of the notch 2323 is closer to the axis of the main body 1 than the outer surface of the crimping portion 2321, so that when the operating portion 2322 is pushed forward to reach the final locking position, the rear end of the sealing body 11 can at least partially enter the notch 2323 without interfering with the operating portion 2322 or the crimping portion 2321, and a first guide surface 2324 can be provided in the notch 2323, and the end of the sealing body 11 can be provided with a second guide surface 113 that cooperates with the first guide surface 2324. During the assembly of the locking push block 232 and the sealing body 11 or the process of pushing the locking push block 232 forward, the first guide surface 2324 can cooperate with the second guide surface 113 for guidance to facilitate assembly.

[0059] Further, see Figure 3 、 Figure 5 and Figure 6As shown, in some embodiments, the main body 1 may include a connector 12, which is connected to the sealing body 11. In this embodiment, the connector 12 and the sealing body 11 can be integrally formed, and the connector 12 extends from the connection with the sealing body 11 in a direction away from the first sealing ring area 111, that is, the connector 12 extends backward, and the operating part 2322 can be arranged at the connector 12. The operating part 2322 can be arranged on one side of the connector 12 along the radial direction of the main body 1, or it can be arranged inside the connector 12; the main body 1 can also include an inner lining sleeve 3, which is detachably connected to the connector 12, and the inner lining sleeve 3 can be used for subsequent fixing of the optical cable 82. In this embodiment, the connector 12 and the sealing body 11 can form a front lining sleeve, and the connection with the rear lining sleeve 3 is achieved by extending the connector 12 backward on the sealing body 11. There is no need to open a connection hole on the sealing body 11, which can ensure the sealing performance of the sealing body 11. The rear lining sleeve 3 and the connector 12 are detachably connected, which makes it convenient to assemble the locking assembly 23 in the core body 21 after the rear lining sleeve 3 and the connector 12 are disassembled.

[0060] In this embodiment, the lining back cover 3 and the connector 12 are preferably detachably connected by snap fasteners.

[0061] Among them, the front end of the operating part 2322 can be provided with a vertical surface. When the operating part 2322 moves to the vertical surface and contacts the rear end surface of the sealing body 11, the rear end surface of the sealing body 11 will block the vertical surface, and the operating part 2322 cannot move forward further. At this time, the operating part 2322 moves to the front end locking position; when the operating part 2322 moves backward to the end face of the crimping part 2321 and contacts the end face of the lining rear sleeve 3, the operating part 2322 moves to the rear end unlocking position.

[0062] See also Figure 7 and Figure 8 as well as Figure 9 and Figure 10As shown, in some optional embodiments, the operating part 2322 can extend in a direction away from the crimping part 2321 to form an anti-foolproof part 2325, that is, the anti-foolproof part 2325 can be formed by extending backward from the operating part 2322; a wire buckle assembly 4 can be provided in the inner lining rear sleeve 3, and a flip cover 31 is provided on the inner lining rear sleeve 3, the flip cover 31 can be pivotally connected to the inner lining rear sleeve 3, and can be opened and buckled relative to the inner lining rear sleeve 3, when the operating part 2322 is pushed in a direction close to the ceramic core 22 and is not pushed into place (that is, not to the final locking position), the anti-foolproof part 2325 prevents the flip cover 31 from buckling on the inner lining rear sleeve 3. In this embodiment, when the wire buckle assembly 4 is installed into the lining back sleeve 3, the wire buckle assembly 4 will be pushed forward along the slide 32 of the lining back sleeve 3 for assembly. After pushing the wire buckle assembly 4, the wire buckle assembly 4 will push the locking push block 232 forward a short distance. At this time, the anti-foolproofing portion 2325 will move to the front end face of the flip cover 31, and the anti-foolproofing portion 2325 has a certain thickness in the radial direction. When the flip cover 31 is to be fastened to the lining back sleeve 3, the anti-foolproofing portion 2325 will block the flip cover 31, causing the flip cover 31 to be unable to close and the outer shell 5 to be unable to be inserted; by providing the anti-foolproofing portion 2325, the assembler can be reminded that the locking assembly 23 has not locked the two optical fibers 83 at this time, and it is necessary to lock this place first before performing subsequent assembly work; after manually locking the locking assembly 23, the flip cover 31 can be closed and the outer shell 5 can be smoothly inserted.

[0063] Among them, see Figure 14 As shown, the cable tie assembly 4 may include a cable tie base 41 and a cable tie cover 42. The cable tie base 41 is mounted on the lining back cover 3. The waterproof connector 100 may also include a sealing plug 6, a tensile assembly 7, a tail sheath 81, and an optical cable 82. During assembly, the cable tie assembly 4, the sealing plug 6, the tensile assembly 7, the tail sheath 81, and the optical cable 82 may be assembled together, and the optical fiber 83 may be cut to a fixed length before being assembled together into the lining back cover 3. The length of the optical cable 82 may be flexibly set at the construction site, saving optical cable 82. Figure 15 As shown, the tensile assembly 7 may include a sealing push block 71 , a fourth sealing ring 72 , a tensile shell 73 and metal teeth 74 .

[0064] See also Figure 6 and Figure 12As shown, in some embodiments, a groove 2326 may be formed between the anti-mumbling portion 2325 and the operating portion 2322. When the operating portion 2322 slides to the unlocked position and the flip cover 31 is in a buckled state with the lining rear cover 3, the flip cover 31 at least partially enters the groove 2326. In this embodiment, when the waterproof connector 100 is in the shipping state, the operating portion 2322 may be in the unlocked position. At this time, the anti-mumbling portion 2325 may enter the interior of the flip cover 31. Since the groove 2326 is provided between the anti-mumbling portion 2325 and the operating portion 2322, the flip cover 31 may be buckled to the lining rear cover 3 through the groove 2326.

[0065] In some optional embodiments, the main body 1 may include a connector 12, which is connected to the sealing body 11 and extends from the connection with the sealing body 11 in a direction away from the first sealing ring area 111; the main body 1 may also include a lining sleeve 3, which is detachably connected to the connector 12; the sliding operation position is provided at the connector 12 and is located between the sealing body 11 and the lining sleeve 3. In this embodiment, the connection with the lining sleeve 3 is achieved by forming the connector 12 extending backward on the sealing body 11, and there is no need to provide a connection hole on the sealing body 11, which can ensure the sealing performance of the sealing body 11. The detachable connection between the lining sleeve 3 and the connector 12 facilitates the assembly of the locking assembly 23 in the core body 21 after the lining sleeve 3 and the connector 12 are disassembled.

[0066] Further, see Figure 13 As shown, the waterproof connector 100 may also include a protective cap 9, on which a third sealing ring 91 may be provided, and the third sealing ring 91 may cooperate with the outer shell 5 to achieve sealing. The rear end of the ferrule body 21 may be sleeved with a spring 24, one end of the spring 24 abuts against the ferrule body 21, and the other end abuts against the lining back sleeve 3. The waterproof connector 100 provided in the embodiment of the present invention can facilitate on-site replacement of damaged pre-connection joints. After the pre-connection joint is damaged, the pre-connection joint can be cut off, and the existing optical cable on site can be used. The waterproof connector 100 can be replaced on-site and then adapted to the adapter. The waterproof connector 100 can confirm the length of the optical cable according to on-site construction, which will not cause waste of the optical cable 82, and does not require professional equipment construction. Locking and unlocking can be achieved by directly operating the sliding operation position, which is user-friendly, and the anti-foolproof part 2325 provided can prevent missed operations.

[0067] The embodiment of the present invention further provides a connector assembly, which may include an adapter 200 and the aforementioned waterproof connector 100 that cooperates with the adapter 200. The waterproof connector 100 in this embodiment may adopt the waterproof connector 100 provided in any of the above embodiments, which will not be described in detail here.

[0068] See also Figure 16 and Figure 17 As shown, the adapter 200 may be provided with a sealing protrusion structure 205 corresponding to the position of the first sealing ring area 111, so that the sealing protrusion structure 205 cooperates with the first sealing ring area 111 to achieve sealing. It should be understood that the adapter 200 in this embodiment may include an adapter body 201, and the adapter body 201 is provided with a plug-in cavity. The waterproof connector 100 can be plugged into the plug-in cavity 202 to cooperate with the adapter 200, wherein the adapter body 201 is further provided with a ceramic sleeve 203, and a step 204 is provided near the ceramic sleeve 203, so that a sealing protrusion structure 205 is formed on the inner wall of the plug-in cavity 202, and the sealing protrusion structure 205 can be located on the side of the step 204 near the ceramic sleeve 203. The inner diameter of the area inside the plug-in cavity 202 where the sealing protrusion structure 205 is not provided is relatively larger, and the inner diameter of the area where the sealing protrusion structure 205 is provided is relatively smaller.

[0069] See also Figure 16 As shown, an embodiment of the present invention further provides a fiber optic connection box, which may include a box body 300 , on which an adapter 200 and the above-mentioned waterproof connector 100 cooperating with the adapter 200 are disposed.

[0070] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 invention. 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 indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0071] It should be noted that, in the present invention, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of 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 comprising 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, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0072] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A waterproof connector, characterized in that: It includes: A main body (1), the main body (1) comprising a sealing body (11), the sealing body (11) being provided with a first sealing ring area (111) and a second sealing ring area (112) arranged at intervals outside the sealing body (11); A ferrule assembly (2), the ferrule assembly (2) comprising a ferrule body (21) located within the sealing body (11), a ceramic ferrule (22) being provided within the ferrule body (21), and a locking assembly (23) being further provided on the ferrule body (21), the locking assembly (23) being configured to slide along the axial direction of the main body (1) so as to align and lock or unlock two optical fibers (83) within the main body (1); Wherein, relative to the second sealing ring area (112), the first sealing ring area (111) is closer to the ceramic ferrule (22), and the sliding operation position of the locking assembly (23) and the first sealing ring area (111) are distributed on opposite sides of the second sealing ring area (112).

2. The waterproof connector according to claim 1, wherein: The insert body (21) has an opening (211), and the locking assembly (23) comprises: A locking pressure block (231), wherein the locking pressure block (231) is located in the opening (211); A locking push block (232), the locking push block (232) comprising a crimping portion (2321) and an operating portion (2322) connected to the crimping portion (2321), the operating portion (2322) forming the sliding operating position; When the operating portion (2322) is pushed in a direction close to the ceramic ferrule (22), the operating portion (2322) drives the crimping portion (2321) to be pressed against the outer side of the locking pressing block (231).

3. The waterproof connector according to claim 2, wherein: The ceramic ferrule (22) is provided with a crimping cavity (221), and a support block (222) is provided on one side of the crimping cavity (221); The locking pressure block (231) includes a first pressure block (2311) and a second pressure block (2312) connected to the first pressure block (2311), the thickness of the second pressure block (2312) is smaller than the thickness of the first pressure block (2311), so that a step is formed between the second pressure block (2312) and the first pressure block (2311), the first pressure block (2311) enters the crimping cavity (221), the second pressure block (2312) is partially supported by the support block (222), and the support block (222) is located at the step; When the operating portion (2322) slides to the unlocking position, the pressing portion (2321) is pressed against the outer side of the second pressing block (2312).

4. The waterproof connector according to claim 2, wherein: The cross-sectional shape of the ferrule body (21) is non-circular, and a through hole matching the cross-sectional shape of the ferrule body (21) is provided in the crimping portion (2321), the ferrule body (21) is at least partially inserted in the through hole, and a crimping surface matching the locking pressure block (231) is provided in the through hole.

5. The waterproof connector according to claim 2, wherein: A notch (2323) is provided at the connection between the operating portion (2322) and the crimping portion (2321), a first guide surface (2324) is provided in the notch (2323), and a second guide surface (113) that cooperates with the first guide surface (2324) is provided at the end of the sealing body (11).

6. The waterproof connector according to claim 2, wherein: The main body (1) includes a connecting body (12), the connecting body (12) is connected to the sealing body (11), and the connecting body (12) extends from the connection with the sealing body (11) in a direction away from the first sealing ring area (111), and the operating portion (2322) is arranged on the connecting body (12); The main body (1) further comprises an inner lining rear sleeve (3), and the inner lining rear sleeve (3) is detachably connected to the connecting body (12).

7. The waterproof connector according to claim 6, wherein: The operating portion (2322) extends in a direction away from the crimping portion (2321) to form a fool-proof portion (2325); A wire buckle assembly (4) is provided in the inner lining rear sleeve (3), and a flip cover (31) is provided on the inner lining rear sleeve (3); when the operating portion (2322) is pushed in a direction close to the ceramic ferrule (22) and is not pushed into place, the foolproof portion (2325) blocks the flip cover (31) from being fastened to the inner lining rear sleeve (3).

8. The waterproof connector according to claim 7, wherein: A groove (2326) is formed between the anti-fouling portion (2325) and the operating portion (2322); when the operating portion (2322) slides to the unlocking position and the flip cover (31) and the lining rear cover (3) are in a buckled state, the flip cover (31) at least partially enters the groove (2326).

9. The waterproof connector according to claim 1, wherein: The main body (1) includes a connecting body (12), the connecting body (12) is connected to the sealing body (11), and the connecting body (12) extends from the connection with the sealing body (11) in a direction away from the first sealing ring area (111); The main body (1) further comprises an inner lining rear sleeve (3), and the inner lining rear sleeve (3) is detachably connected to the connecting body (12); The sliding operation position is arranged at the connecting body (12) and is located between the sealing body (11) and the lining rear sleeve (3).

10. The waterproof connector according to claim 1, wherein: The first sealing ring area (111) and the second sealing ring area (112) are respectively located at two opposite ends of the sealing body (11).

11. The waterproof connector according to claim 1, wherein: The outer wall surface of the sealing body (11) between the first sealing ring area (111) and the second sealing ring area (112) is complete.

12. A connector assembly, characterized in that: The invention comprises an adapter and a waterproof connector according to any one of claims 1 to 11 that cooperates with the adapter.

13. An optical fiber connection box, characterized in that: The invention comprises a box body, an adapter is provided on the box body, and a waterproof connector according to any one of claims 1 to 11 matched with the adapter.

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