Multipurpose waterproof connector

Abstract

The invention mainly relates to the field of optical fiber connectors, in particular to a multipurpose waterproof connector. Comprising a waterproof main body which comprises a shell, a locking cap, a tail sealing assembly and an insertion core assembly; the shell is integrally formed and is provided with an inner cavity which is through front and back; the insertion core assembly is arranged in the inner cavity and is arranged at the front end of the square front section main body of the shell; the locking cap is rotatably arranged on the cylindrical rear section main body of the shell in a sleeving manner, and the locking cap is limited through the flange table; the tail sealing assembly is used for sealing an optical cable extending out of the inner cavity at the tail end of the shell; the replaceable assembly is used for adapting to different adapters; the replaceable assembly is arranged on the square front section body of the shell in a sleeved mode, and at least one part of the replaceable assembly can be matched with the locking cap so that the replaceable assembly can be arranged on the shell in a sleeved mode.

Description

Technical Field

[0001] The present invention mainly relates to the field of fiber optic connectors, and particularly to a multi-purpose waterproof connector. Background Art

[0002] The existing waterproof connectors have a relatively complex structure. For example, the patent with the application number 202223450565.9 and the name of a miniaturized inner core structure for fiber optic pre-termination and its combined kit discloses that: The inner core body 1 includes a first connection end and a second connection end. Its first connection end is a ferrule connection end, and the second connection end is an optical cable crimping end. The ferrule 3 is arranged in the ferrule fixing seat 2, and the ferrule fixing seat 2 is connected to the first connection end of the inner core body 1. A connection nut 6 is sleeved outside the inner core body 1. There are also a step 106 and a tail sleeve 9 outside the inner core body 1. The connection nut 6 is placed between the step 106 and the tail sleeve 9. The external thread of the connection nut 6 matches the internal thread of different kits and can be detachably connected to different kits..., There is also a keyway 102 on the inner core body 1. The keyway 102 matches the corresponding feature surface inside the kit, so as to facilitate the alignment of the direction during the assembly of the kit and the inner core structure and achieve rapid positioning. Preferably, there is also an indication arrow 105 outside the inner core body 1 for indicating the connection direction between the inner core body 1 and the kit. Preferably, there is also an adapter card table 103 outside the inner core body 1. When the inner core body 1 itself is used as a connector, it can be assembled with the corresponding adapter through this adapter card table 103.

[0003] The above structure, especially the structure of the inner core body 1 of the connector, is complex and has low strength. The ferrule fixing seat 2 is also a separate part with a complex structure. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention now provides a multi-purpose waterproof connector, which is realized through the following technical solutions: A multi-purpose waterproof connector, a waterproof main body, including a housing, a locking cap, a tail sealing assembly and a ferrule assembly; the housing is integrally formed, and the front section main body of the housing is configured as a square, the middle part of the housing has a flange platform, and the rear section main body of the housing is configured as a cylinder; the housing has a cavity that penetrates from front to back; the ferrule assembly is arranged in the cavity and at the front end of the front section main body of the housing; the locking cap is rotatably sleeved on the rear section main body of the housing and is limited by the flange platform; the tail sealing assembly is used to seal the optical cable extending out of the cavity at the tail end of the housing; A replaceable component for adapting to different adapters; the replaceable component is sleeved on the front section main body of the housing and at least a part of it can cooperate with the locking cap to arrange the replaceable component on the housing.

[0005] Preferably, the ferrule assembly includes a ceramic ferrule, a ferrule seat, and a spring; the ceramic ferrule is fixed on the ferrule seat, the ferrule seat is provided with a boss and a tail rod, and the spring is sleeved on the tail rod and abuts against the boss; An insertion port is provided in the front section main body of the housing in the radial direction, and a limiting step is provided in the inner cavity of the front section main body of the waterproof main body; It further includes a tenon; the tenon is inserted from the insertion port and can extend into the inner cavity; the space between the part of the tenon extending into the inner cavity and the limiting step in the inner cavity is used to accommodate the boss and the spring; when the ceramic ferrule is squeezed, it can contract and rebound under the drive of the spring.

[0006] Preferably, the tail sealing assembly includes a crimping ring, a heat shrinkable tube, and a tail sleeve; The crimping ring is used to crimp the outer skin or aramid of the optical cable onto the crimping part at the tail end of the rear section main body of the housing; the heat shrinkable tube is used to sleeve on the crimping ring to seal the crimping ring; the tail sleeve is used to sleeve on the rear section main body of the housing and be fixed.

[0007] Preferably, the fixed tail sleeve is used to limit the locking cap sleeved on the rear section main body of the housing from the rear.

[0008] Preferably, a sliding groove is provided on the outer surface of the front section main body of the housing along the axial direction near the flange platform.

[0009] Preferably, the replaceable assembly is configured to include a first inner sleeve and a first locking member; the first inner sleeve has a first inner rib that cooperates with the sliding groove, and a limiting groove is provided on the outer surface of the first inner sleeve; the first locking member is detachably fixed to the locking cap; a first boss that cooperates with the limiting groove is provided on the inner side of the first locking member; The first inner sleeve is sleeved on the front section main body of the housing, and the first inner sleeve is circumferentially limited by the cooperation of the first inner rib and the sliding groove; the first locking member fixed to the locking cap can rotate simultaneously with the locking cap, and the cooperation of the first boss and the limiting groove is used to limit the rotation range of the first locking member.

[0010] Preferably, the replaceable assembly is configured to include a second inner sleeve and a second locking member; the second inner sleeve has a second inner rib that cooperates with the sliding groove, and an annular limiting groove is provided on the outer surface of the second inner sleeve; the second inner sleeve is detachably fixed to the locking cap; a second boss that cooperates with the annular limiting groove is provided on the inner side of the second locking member, and through the cooperation of the second boss and the annular limiting groove, the second locking member is rotatably sleeved on the second inner sleeve.

[0011] Preferably, the second inner sleeve is provided with an abutting edge with a notch along the circumferential direction, an abutting ring cooperating with the abutting edge is arranged on the inner side of the second locking member, a limiting boss corresponding to the notch of the abutting edge is arranged at the front part of the abutting ring, and the rotation range of the second locking member is limited by the cooperation between the limiting boss and the notch of the abutting edge.

[0012] Preferably, it further includes a waterproof cap, and the waterproof cap is used to cooperate with the locking cap to seal the front section main body of the housing, so that the waterproof main body forms a pipe-passing structure.

[0013] Preferably, it further includes an SC housing; the SC housing is sleeved on the front section main body of the housing, and the waterproof main body is configured as an optical fiber connector adapted to an SC adapter.

[0014] The beneficial effects of the present invention are as follows: The housing of the waterproof main body of the multi-purpose waterproof connector provided by the present invention is integrally formed, with a simple structure and convenient use, and the overall structural strength is higher; at the same time, according to specific use scenarios, replacing different accessories can make it used as a pipe-passing connector, a waterproof connector and an SC connector. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the assembled state of the waterproof main body; Figure 2 It is a schematic exploded structural diagram of the waterproof main body; Figure 3 It is a schematic cross-sectional structural diagram of the assembled state of the waterproof main body; Figure 4 It is a schematic structural diagram of the assembled state of the tenon of the waterproof main body; Figure 5 It is a schematic exploded structural diagram when installing the replaceable component (waterproof component) in Embodiment 1; Figure 6 It is a schematic exploded structural diagram of the replaceable component (waterproof component) in Embodiment 1; Figure 7 It is a schematic structural diagram of the first inner sleeve in Embodiment 1; Figure 8 It is a schematic structural diagram of the assembled state in Embodiment 1; Figure 9 It is a schematic exploded structural diagram when installing the replaceable component (waterproof component) in Embodiment 2; Figure 10 It is a schematic structural diagram of the assembled state in Embodiment 2; Figure 11 It is a schematic exploded structural diagram when installing the replaceable component (waterproof component) in Embodiment 3; Figure 12Exploded structural schematic diagram of the replaceable component (waterproof component) in Embodiment 3; Figure 13 Assembled state structural schematic diagram of Embodiment 3; Figure 14 Structural schematic diagram of installing a waterproof cap on the waterproof main body in Embodiment 4; Figure 15 Structural schematic diagram of installing a waterproof cap after installing the replaceable component in Embodiment 4; Figure 16 Exploded state structural schematic diagram when installing the SC housing in Embodiment 5; Figure 17 Assembled state structural schematic diagram when installing the SC housing in Embodiment 5. Detailed implementation manners

[0016] The following further describes the preferred mechanisms and methods for realizing the movement of the present invention in conjunction with the accompanying drawings and specific implementation manners.

[0017] As Figures 1 to 4 shown, the multi-purpose waterproof connector includes: A waterproof main body 1, including a housing 2, a locking cap 3, a tail seal assembly, and a ferrule assembly. The housing 2 is integrally formed, and the front section main body 4 of the housing 2 is configured to be square, the middle part of the housing has a flange 5, and the rear section main body 6 of the housing is configured to be cylindrical. The housing 2 has a through cavity in the front and rear directions. The ferrule assembly is disposed in the cavity and at the front end of the front section main body 4 of the housing 2. The locking cap 3 is rotatably sleeved on the rear section main body 6 of the housing 2, and the locking cap 3 is limited by the flange 5, and the front end of the locking cap 3 abuts against the flange 5 from the rear. The tail seal assembly is used to seal the optical cable extending out of the cavity at the tail end of the housing 2. The integrally formed entire housing 2 ensures strength, and the square front section main body 4 has the same shape as the inner housing of the SC adapter, ensuring adaptability.

[0018] The ferrule assembly includes a ceramic ferrule 7, a ferrule seat 8, and a spring 9. The ceramic ferrule 7 is fixed on the ferrule seat 8. The ferrule seat 8 is provided with a boss and a tail rod. The spring 9 is sleeved on the tail rod, and the front end of the spring 9 abuts against the boss. An insertion port 10 is provided in the front section main body 4 of the housing 2 in the radial direction, and a limiting step 11 is provided in the inner cavity of the front section main body of the housing 2. The front section main body of the housing 2 is the inner housing of the SC connector.

[0019] The tenon 12 is inserted from the insertion port 10 and can extend into the inner cavity. The tenon 12 is integrally U-shaped and is made of metal to ensure strength. After the two sides of the tenon 12 are inserted, they are located on both sides of the inner cavity. The middle part allows the ceramic ferrule 7 to pass through, and the two sides are used to block the boss of the ferrule seat 8 or block the spring 9. The space between the part of the tenon 12 extending into the inner cavity and the limit step 11 in the inner cavity is used to accommodate the boss and the spring 9. As shown in the figure, the tail end of the spring 9 abuts against the limit step 11, and the other end abuts against the boss of the ferrule seat 8. In this way, when the ceramic ferrule is squeezed, it can contract and rebound under the drive of the spring. During installation, the ferrule assembly is pressed into the front end of the housing 2, and then the ceramic ferrule 7 is pushed backward until the boss of the ferrule seat 8 is located behind the insertion port 10. At this time, the tenon 12 is inserted into the insertion port 10, and the ceramic ferrule 7 is released to be blocked by the tenon 12 to complete the installation.

[0020] The tail seal assembly can be in several forms. For example, it can include a crimping ring 13, a heat shrinkable tube 14 and a tail sleeve 15. The crimping ring 13 is used to crimp the outer skin or aramid of the optical cable to the crimping part 16 at the tail end of the rear section main body 6 of the housing. The heat shrinkable tube 14 is used to cover the crimping ring 13 to seal the crimping ring 13. The tail sleeve 15 is used to cover and fix on the rear section main body 6 of the housing 2. The fixed tail sleeve 15 can also limit the locking cap 3 sleeved on the rear section main body 6 of the housing 2 from the rear. In this way, the locking cap 3 is limited from both the front and rear ends. Glue can also be injected into the tail sleeve 15 to ensure its sealing performance. At the required positions, such as the position where the front section main body 4 intersects with the flange 5, a sealing ring 17 can be provided. A replaceable component, used to adapt to different adapters. The replaceable component is sleeved on the front section main body of the housing 2 and at least a part of it can cooperate with the locking cap 3 to dispose the replaceable component on the housing 2.

[0021] A chute 18 is arranged along the axial direction on the outer surface of the front section main body 4 of the housing 2 close to the flange 5. The front end part of the chute 18 facing forward is gradually converging. The chute 18 can be a groove or a protruding rib.

[0022] Example 1, such as Figures 5 to 8As shown, the replaceable component is configured to include a first inner sleeve 19 and a first locking member 20. The first inner sleeve 19 has a first inner rib 23 that cooperates with the sliding groove 18, and a limiting groove 21 is provided on the outer surface of the first inner sleeve 19. The first locking member 19 is detachably fixed to the locking cap 3. A first boss 22 that cooperates with the limiting groove 21 is provided on the inner side of the first locking member 19. The first inner sleeve 19 is sleeved on the front main body 4 of the housing 2, and the first inner rib 23 cooperates with the sliding groove 18 to limit the first inner sleeve 19 in the circumferential direction. The first locking member 19 fixed to the locking cap 3 can rotate simultaneously with the locking cap 3, and the cooperation between the first boss 22 and the limiting groove 21 is used to limit the rotation range of the first locking member 20. At the same time, the cooperation between the first boss 22 and the limiting groove 21 can also limit the first inner sleeve 19 in the front-rear direction. The front end of the first locking member 20 abuts against the protruding edge of the first inner sleeve 19. The first boss 22 is arranged to gradually rise backward. During installation, the first inner sleeve 19 and the first locking member 20 are combined, the first boss 22 is inserted into the limiting groove 21, and the two have formed a whole part. Insert the first inner sleeve 19 into the front main body 4 from the front, and twist the locking cap 3 during the process of pushing it backward, so that the first locking member 20 is fixed to the locking cap 3. A clamping block 24 is provided on the front end surface of the first locking member 20, and the first locking member 20 can rotate in the circumferential direction, so that the clamping block 24 can be adapted to the corresponding adapter.

[0023] Embodiment 2, as Figure 9 and Figure 10 As shown, the replaceable component is configured to include a second inner sleeve 25 and a second locking member 26. The inside of the second inner sleeve 25 has a second inner rib that cooperates with the sliding groove 18, and an annular limiting groove 27 is provided on the outer surface of the second inner sleeve 25. The second inner sleeve 25 is detachably fixed to the 3 locking caps by threads. A second boss 28 that cooperates with the annular limiting groove 27 is provided on the inner side of the second locking member 26. Through the cooperation between the second boss 28 and the annular limiting groove 27, the second locking member 26 is rotatably sleeved on the second inner sleeve 25. During installation, the second locking member 26 has been installed on the second inner sleeve 25, and the front end of the second locking member 26 abuts against the protruding edge of the head of the second inner sleeve 25, and the two have formed a whole part. Insert the second inner sleeve 25 into the front main body 4 from the front, and twist the locking cap 3 during the process of pushing it backward, so that the second inner sleeve 25 is fixed to the locking cap 3. A thread 29 is provided at the front end of the second locking member 26, and it can rotate on the second inner sleeve 25, so as to be adapted to the corresponding adapter.

[0024] Embodiment 3, as Figures 11 to 13As shown, the replaceable component is configured to include a third inner sleeve 30 and a third locking member 31. The interior of the third inner sleeve 30 has a third inner rib that mates with the chute 18, and a circumferential limiting groove 32 is provided on the outer surface of the third inner sleeve 30. The third inner sleeve 30 is detachably fixed to the locking cap 3 by threads. The inner side of the third locking member 31 is provided with a third boss 33 that mates with the circumferential limiting groove 32. Through the cooperation of the third boss 33 and the circumferential limiting groove 32, the third locking member 31 is rotatably sleeved on the third inner sleeve 30. The third inner sleeve 30 is provided with an abutting edge 34 having a notch along the circumferential direction. The inner side of the third locking member 31 is provided with an abutting ring 35 that mates with the abutting edge 34. A limiting boss 37 corresponding to the notch 36 of the abutting edge 34 is provided at the front of the abutting ring 35. The rotation range of the third locking member 31 is restricted by the cooperation of the limiting boss 37 and the notch 36 of the abutting edge 34. During installation, the third locking member 31 has been installed on the third inner sleeve 30. In the front, the abutting ring 35 abuts against the abutting edge 34, and in the back, the third boss 33 is located in the circumferential limiting groove 32. The two form a single part as a whole. The inner wall of the third locking member 31 is also provided with locking bumps 38, and the locking bumps 38 can thus be adapted to the corresponding adapter.

[0025] Embodiment 4, as Figure 14 shown, when the replaceable component is not installed on the waterproof main body 1, the locking cap 3 can cooperate with the waterproof cap 39, and the waterproof cap 39 is used to cooperate with the locking cap 3 to seal the front section main body 4 of the housing 2, so that the waterproof main body 1 forms a pipe-passing structure. Or when the above-mentioned replaceable component is installed on the waterproof main body 1, as Figure 15 shown, a waterproof cap 40 that can be locked to the replaceable component can be provided, so as to form a pipe-passing structure.

[0026] Embodiment 5, as Figure 16 and Figure 17 shown, it further includes an SC housing 41. When the replaceable component is not installed on the waterproof main body 1, the SC housing 41 is sleeved on the front section main body 4 of the housing 2, and the waterproof main body 1 is configured as an SC-type fiber optic connector adapted to an SC adapter.

[0027] The integrally formed integral housing 2 ensures the overall strength while making the way of installing the ferrule assembly simpler. During use, the waterproof main body 1 and the waterproof cap can be installed together to form a pipe-passing structure. After reaching the position, the replaceable component can be installed according to requirements, or when replacing the adapter, the original replaceable component can be removed and replaced with a replaceable component that matches it. If a waterproof structure is not required, the waterproof main body 1 can be installed with an SC housing and used as an SC fiber optic connector.

Claims

1. A multi-purpose waterproof connector, characterized in that: A waterproof body, comprising a shell, a locking cap, a tail sealing assembly and a plug assembly; the shell is integrally formed, and the front section of the shell is configured as a square, the middle of the shell has a flange platform, and the rear section of the shell is configured as a cylinder; the shell has an inner cavity that passes through from front to back; the plug assembly is configured in the inner cavity and at the front end of the front section of the shell; the locking cap is rotatably sleeved on the rear section of the shell, and the locking cap is limited by the flange platform; the tail sealing assembly is used to seal the optical cable extending from the inner cavity at the tail end of the shell; A replaceable component is used to adapt to different adapters; the replaceable component is sleeved on the front section body of the shell and at least a part of it can cooperate with the locking cap to configure the replaceable component on the shell.

2. The multi-purpose waterproof connector according to claim 1, characterized in that: The ferrule assembly comprises a ceramic ferrule, a ferrule seat and a spring; the ceramic ferrule is fixed on the ferrule seat, the ferrule seat is provided with a boss and a tail rod, the spring is sleeved on the tail rod and abuts against the boss; An insertion port is provided on the front section body of the housing along the radial direction, and a limiting step is provided in the inner cavity of the front section body of the waterproof body; It also includes a tenon; the tenon is inserted from the insertion port and can extend into the inner cavity; the space in the inner cavity between the portion of the tenon extending into the inner cavity and the limiting step is used to accommodate the boss and the spring; the ceramic insert can shrink when squeezed and rebound under the drive of the spring.

3. The multi-purpose waterproof connector according to claim 1, characterized in that: The tail sealing assembly includes a crimping ring, a heat shrink tube and a tail sleeve; The crimping ring is used to crimp the outer sheath or aramid of the optical cable onto the crimping portion at the tail end of the rear section body of the shell; the heat shrink tube is used to be sleeved on the crimping ring to seal the crimping ring; the tail sleeve is used to be sleeved on the rear section body of the shell and fixed.

4. The multi-purpose waterproof connector according to claim 1, characterized in that: The fixed tail sleeve is used to limit the locking cap sleeved on the rear section body of the shell from the rear.

5. The multi-purpose waterproof connector according to claim 1, characterized in that: A sliding groove is arranged on the outer surface of the front section main body of the shell close to the flange platform along the axial direction.

6. The multi-purpose waterproof connector according to claim 5, characterized in that: The replaceable component is configured to include a first inner sleeve and a first locking member; the first inner sleeve has a first inner rib that matches the slide groove, and the outer surface of the first inner sleeve is provided with a limiting groove; the first locking member is detachably fixed to the locking cap; the inner side of the first locking member is provided with a first boss that matches the limiting groove; The first inner sleeve is sleeved on the front main body of the shell, and the first inner sleeve is limited in the circumferential direction by the cooperation of the first inner rib and the slide groove; the first locking piece fixed to the locking cap can rotate simultaneously with the locking cap, and the first boss cooperates with the limiting groove to limit the rotation range of the first locking piece.

7. The multi-purpose waterproof connector according to claim 5, characterized in that: The replaceable component is configured to include a second inner sleeve and a second locking piece; the second inner sleeve has a second inner rib that cooperates with the sliding groove, and the outer surface of the second inner sleeve is provided with an annular limiting groove; the second inner sleeve is detachably fixed to the locking cap; the inner side of the second locking piece is provided with a second boss that cooperates with the annular limiting groove, and the second locking piece can be rotatably mounted on the second inner sleeve through the cooperation between the second boss and the annular limiting groove.

8. The multi-purpose waterproof connector according to claim 7, characterized in that: An abutment edge with a notch is arranged on the second inner sleeve in the circumferential direction, an abutment ring cooperating with the abutment edge is arranged on the inner side of the second locking member, and a limiting boss corresponding to the notch of the abutment edge is arranged on the front part of the abutment ring, and the rotation range of the second locking member is limited by the cooperation between the limiting boss and the notch of the abutment edge.

9. The multi-purpose waterproof connector according to claim 1, characterized in that: It also includes a waterproof cap, which is used to cooperate with the locking cap to seal the front section of the shell body so that the waterproof body forms a pipe-through structure.

10. The multi-purpose waterproof connector according to claim 1, characterized in that: It also includes an SC shell; the SC shell is sleeved on the front section body of the housing, and the waterproof body is configured as an optical fiber connector adapted to an SC adapter.

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