Multipurpose waterproof connector

Abstract

The utility model 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] This utility model mainly relates to the field of fiber optic connectors, and in particular to a multi-purpose waterproof connector. Background Technology

[0002] Existing waterproof connectors have relatively complex structures. For example, patent application number 202223450565.9, entitled "A Miniaturized Inner Core Structure and its Assembly for Fiber Optic Pre-formed Ends," discloses that: the inner core body 1 includes a first connecting end and a second connecting end, the first connecting end being a ferrule connecting end and the second connecting end being an optical cable crimping end. A ferrule 3 is disposed within a ferrule fixing seat 2, which is connected to the first connecting end of the inner core body 1. A connecting nut 6 is sleeved on the outside of the inner core body 1, and a step 106 and a tail sleeve 9 are also provided on the outside of the inner core body 1. The connecting nut 6 is placed between the step 106 and the tail sleeve 9, and the external thread of the connecting nut 6 matches the internal thread of different kits, enabling detachable connection with different kits… The inner core body 1 also has a key 102, which matches the corresponding feature surface inside the kit, thereby facilitating alignment during assembly of the kit and the inner core structure and achieving rapid positioning. Preferably, an indicator arrow 105 is also provided on the outside of the inner core body 1 to indicate the connection direction between the inner core body 1 and the kit. Preferably, the inner core body 1 is further provided with an adapter slot 103 on the outside. When the inner core body 1 itself is used as a connector, it can be assembled with the corresponding adapter through the adapter slot 103.

[0003] The above-mentioned structures, especially the inner core body 1 of the connector, are complex and have low strength, and the ferrule fixing seat 2 is also a separate part with a complex structure. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a multi-purpose waterproof connector, which is achieved through the following technical solution:

[0005] A multi-purpose waterproof connector includes a waterproof body comprising a housing, a locking cap, a tail sealing assembly, and a ferrule assembly. The housing is integrally formed, with a square front section and a flange in the middle, and a cylindrical rear section. The housing has a through-cavity. The ferrule assembly is disposed within the cavity and at the front end of the front section of the housing. The locking cap is rotatably fitted onto the rear section of the housing and is positioned by the flange. The tail sealing assembly seals an optical cable extending from the cavity at the tail end of the housing.

[0006] A replaceable component for adapting to different adapters; the replaceable component is sleeved on the front body of the housing and at least a portion of it can cooperate with the locking cap to configure the replaceable component in the housing.

[0007] 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;

[0008] An insertion port is provided on the front section of the housing in the radial direction, and a limiting step is provided in the inner cavity of the front section of the waterproof body;

[0009] It also includes a latch; the latch is inserted from the insertion port and can extend into the inner cavity; the space in the inner cavity between the portion of the latch extending into the inner cavity and the limiting step is used to accommodate the boss and the spring; the ceramic insert can retract when squeezed and rebound under the action of the spring.

[0010] Preferably, the tail sealing assembly includes a crimping ring, a heat shrink tubing, and a tail sleeve;

[0011] The crimping ring is used to crimp the outer sheath or aramid fiber of the optical cable onto the crimping portion at the tail end of the rear section of the housing; the heat shrink tubing is used to fit over the crimping ring to seal it; the tail sleeve is used to fit over and fix the rear section of the housing.

[0012] Preferably, the fixed tail sleeve is used to limit the locking cap fitted on the rear section of the housing from the rear.

[0013] Preferably, the front section of the housing body near the flange platform has a groove along the axial direction.

[0014] Preferably, 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 mates with 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 protrusion that mates with the limiting groove;

[0015] The first inner sleeve is fitted onto the front part of the housing and is limited in the circumferential direction by the first inner rib cooperating with the sliding groove; the first locking member 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 member.

[0016] Preferably, the replaceable component is configured to include a second inner sleeve and a second locking member; the second inner sleeve has a second inner rib that mates with the slide 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 member is provided with a second boss that mates with the annular limiting groove, and the second locking member is rotatably fitted onto the second inner sleeve by the cooperation of the second boss and the annular limiting groove.

[0017] Preferably, the second inner sleeve has an abutment edge with a notch along the circumferential direction, and the inner side of the second locking member has an abutment ring that mates with the abutment edge. The front part of the abutment ring has a limiting boss corresponding to the notch of the abutment edge. The rotation range of the second locking member is limited by the engagement of the limiting boss with the notch of the abutment edge.

[0018] Preferably, it also includes a waterproof cap, which is used to cooperate with the locking cap to seal the front part of the housing, so that the waterproof body forms a tube structure.

[0019] Preferably, it also includes an SC housing; the SC housing is fitted onto the front body of the housing, and the waterproof body is configured as a fiber optic connector adapted to the SC adapter.

[0020] The beneficial effects of this utility model are as follows:

[0021] The multi-purpose waterproof connector provided by this utility model has a waterproof body shell that is integrally molded, which is simple in structure, easy to use, and has higher overall structural strength. At the same time, depending on the specific application scenario, different accessories can be replaced to make it usable as a tube connector, waterproof connector, and SC connector. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the assembled structure of the waterproof body;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the waterproof body;

[0024] Figure 3 This is a cross-sectional structural diagram of the assembled waterproof body.

[0025] Figure 4 A schematic diagram of the assembled structure of the snap fasteners of the waterproof body;

[0026] Figure 5 This is an exploded view of the structure when installing the replaceable component (waterproof component) in Example 1;

[0027] Figure 6 This is an exploded structural diagram of the replaceable component (waterproof component) of Example 1;

[0028] Figure 7 This is a schematic diagram of the structure of the first inner sleeve in Example 1;

[0029] Figure 8 This is a schematic diagram of the assembled structure of Example 1;

[0030] Figure 9 This is an exploded view of the structure when installing the replaceable component (waterproof component) in Example 2;

[0031] Figure 10 This is a schematic diagram of the assembly state structure of Example 2;

[0032] Figure 11 This is an exploded view of the structure when installing the replaceable component (waterproof component) in Example 3;

[0033] Figure 12 This is an exploded structural diagram of the replaceable component (waterproof component) in Example 3;

[0034] Figure 13 This is a schematic diagram of the assembly state structure of Example 3;

[0035] Figure 14 This is a schematic diagram of the structure of installing a waterproof cap on the waterproof body in Example 4;

[0036] Figure 15 This is a schematic diagram of the structure of Example 4, showing the installation of the waterproof cap after the installation of the replaceable components;

[0037] Figure 16 This is a schematic diagram of the exploded state structure when the SC shell is installed in Example 5;

[0038] Figure 17 This is a schematic diagram of the assembly state structure when installing the SC shell in Example 5. Detailed Implementation

[0039] The preferred mechanism and method of motion implementation of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1 to 4 As shown, the multi-purpose waterproof connector includes:

[0041] The waterproof main body 1 includes a housing 2, a locking cap 3, a tail sealing assembly, and a ferrule assembly. The housing 2 is integrally molded, with its front section 4 being square, a flange 5 in the middle, and its rear section 6 being cylindrical. The housing 2 has a through-cavity. The ferrule assembly is disposed within the cavity and at the front end of the front section 4 of the housing 2. The locking cap 3 is rotatably fitted onto the rear section 6 of the housing 2 and is limited by the flange 5, with its front end abutting against the flange 5 from the rear. The tail sealing assembly seals the optical cable extending from the cavity at the tail end of the housing 2. The integrally molded housing 2 ensures strength, and the square front section 4 matches the shape of the inner housing of the SC adapter, ensuring compatibility.

[0042] The ferrule assembly includes a ceramic ferrule 7, a ferrule holder 8, and a spring 9. The ceramic ferrule 7 is fixed on the ferrule holder 8, which has a boss and a tail rod. The spring 9 is sleeved on the tail rod, and its front end abuts against the boss. The front section 4 of the housing 2 has an insertion port 10 arranged radially, and the inner cavity of the front section 4 of the housing 2 has a limiting step 11. The front section 4 of the housing 2 is the inner housing of the SC connector.

[0043] The latch 12 is inserted into the insertion port 10 and extends into the inner cavity. The latch 12 is U-shaped and made of metal to ensure strength. After insertion, the two sides of the latch 12 are located on both sides of the inner cavity, allowing the ceramic insert 7 to pass through in the middle, while the two sides are used to block the boss of the insert seat 8 or the blocking spring 9. The space between the part of the latch 12 that extends into the inner cavity and the limiting step 11 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 limiting step 11, and the other end abuts against the boss of the insert seat 8. In this way, the ceramic insert can contract when compressed and rebound under the action of the spring. During installation, the insert assembly is pressed in from the front end of the housing 2, and then the ceramic insert 7 is pushed backward until the boss of the insert seat 8 is located behind the insertion port 10. At this time, the latch 12 is inserted into the insertion port 10, and the ceramic insert 7 is released so that it is blocked forward by the latch 12 to complete the installation.

[0044] The tail sealing assembly can take several forms, such as including a crimping ring 13, a heat shrink tubing 14, and a tail sleeve 15. The crimping ring 13 is used to crimp the outer sheath of the optical cable or aramid fiber to the crimping portion 16 at the tail end of the rear section of the housing 2. The heat shrink tubing 14 is used to fit over the crimping ring 13 to seal it. The tail sleeve 15 is used to fit over and secure the rear section of the housing 2. The fixed tail sleeve 15 can also limit the locking cap 3 fitted onto the rear section of the housing 2 from the rear. Thus, the locking cap 3 is limited from both the front and rear ends. Adhesive can also be injected into the tail sleeve 15 to ensure its sealing performance. A sealing ring 17 can be installed at desired locations, such as where the front section 4 intersects with the flange 5.

[0045] Replaceable components for adapting to different adapters. The replaceable components are fitted onto the front body of the housing 2, and at least a portion of them can mate with the locking cap 3 to fit the replaceable components onto the housing 2.

[0046] The front section of the housing 2, near the flange 5, has a groove 18 along its axial direction. The front end of the groove 18 gradually narrows. The groove 18 can be a recess or a protruding ridge.

[0047] Example 1, as Figures 5 to 8 As 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 mates with a slide 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 mates with the limiting groove 21 is provided on the inner side of the first locking member 19. The first inner sleeve 19 is fitted onto the front section 4 of the housing 2, and the first inner sleeve 19 is limited in the circumferential direction by the first inner rib 23 mates with the slide groove 18. The first locking member 19, fixed to the locking cap 3, can rotate simultaneously with the locking cap 3, and the first boss 22 mates with the limiting groove 21 to limit the rotation range of the first locking member 20. At the same time, the first boss 22 mates with the limiting groove 21 to 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 protrusion 22 is designed to gradually rise rearward. During installation, the first inner sleeve 19 engages with the first locking member 20, and the first protrusion 22 is embedded in the limiting groove 21, forming a single component. The first inner sleeve 19 is inserted into the front body 4 from the front, and the locking cap 3 is twisted during the rearward pushing process to fix the first locking member 20 onto the locking cap 3. The front surface of the first locking member 20 is provided with a locking block 24, and the first locking member 20 can rotate in a circumferential direction, so that the locking block 24 can be adapted to the corresponding adapter.

[0048] Example 2, as Figure 9 and Figure 10As shown, the replaceable component is configured to include a second inner sleeve 25 and a second locking member 26. The second inner sleeve 25 has a second inner rib that mates with a slide groove 18, and an annular limiting groove 27 on its outer surface. The second inner sleeve 25 is detachably fixed to the locking cap 3 by threads. The inner side of the second locking member 26 has a second boss 28 that mates with the annular limiting groove 27. The engagement of the second boss 28 and the annular limiting groove 27 allows the second locking member 26 to be rotatably fitted onto the second inner sleeve 25. During installation, the second locking member 26 is already installed on the second inner sleeve 25, with its front end abutting against the protruding edge of the head of the second inner sleeve 25; the two components form a single unit. Insert the second inner sleeve 25 into the front body 4 from the front. While pushing it in backward, twist the locking cap 3 to fix the second inner sleeve 25 on the locking cap 3. The front end of the second locking member 26 is provided with a thread 29, which can rotate on the second inner sleeve 25 to adapt to the corresponding adapter.

[0049] Example 3, as Figures 11 to 13 As 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 slide groove 18, and the exterior of the third inner sleeve 30 has an annular limiting groove 32. The third inner sleeve 30 is detachably fixed to the locking cap 3 by threads. The inner side of the third locking member 31 has a third boss 33 that mates with the annular limiting groove 32. The third locking member 31 is rotatably fitted onto the third inner sleeve 30 by the engagement of the third boss 33 and the annular limiting groove 32. The third inner sleeve 30 has an abutment edge 34 with a notch along the circumferential direction. The inner side of the third locking member 31 has an abutment ring 35 that mates with the abutment edge 34. The front of the abutment ring 35 has a limiting boss 37 that corresponds to the notch 36 of the abutment edge 34. The rotation range of the third locking member 31 is limited by the engagement of the limiting boss 37 with the notch 36 of the abutment edge 34. During installation, the third locking member 31 is already installed on the third inner sleeve 30, with the front abutment ring 35 abutting against the abutment edge 34, and the rear third boss 33 located within the annular limiting groove 32, the two forming a single part. The inner wall of the third locking member 31 is also provided with locking protrusions 38, which can be adapted to the corresponding adapter.

[0050] Example 4, as Figure 14 As shown, when the waterproof body 1 is not equipped with the replaceable components, the locking cap 3 can cooperate with the waterproof cap 39. The waterproof cap 39 is used to seal the front section 4 of the housing 2, forming a through-tube structure with the waterproof body 1. Alternatively, when the waterproof body 1 is equipped with the aforementioned replaceable components, such as... Figure 15 As shown, a waterproof cap 40 that can be locked onto a replaceable component can be provided to form a through-tube structure.

[0051] Example 5, as Figure 16 and Figure 17 As shown, it also includes an SC housing 41. When the waterproof body 1 is not equipped with replaceable components, the SC housing 41 is fitted onto the front body 4 of the housing 2, configuring the waterproof body 1 as an SC type fiber optic connector adapted to the SC adapter.

[0052] The one-piece molded housing 2 ensures overall strength while simplifying the installation of the ferrule assembly. During use, the waterproof body 1 and waterproof cap can be installed together to form a conduit structure. Once in place, replaceable components can be installed as needed, or when changing the adapter, the original replaceable component can be removed and replaced with a matching one. If a waterproof structure is not required, the waterproof body 1 can be fitted with an SC shell for use as an SC fiber optic connector.

Claims

1. A multi-purpose waterproof connector, characterized in that: A waterproof body includes a housing, a locking cap, a tail sealing assembly, and a ferrule assembly. The housing is integrally formed, with a square front section, a flange in the middle, and a cylindrical rear section. The housing has a through-cavity. The ferrule assembly is disposed within the cavity and at the front end of the front section. The locking cap is rotatably fitted onto the rear section and is positioned by the flange. The tail sealing assembly seals the optical cable extending from the cavity at the rear end of the housing. A replaceable component for adapting to different adapters; the replaceable component is sleeved on the front body of the housing and at least a portion of it can cooperate with the locking cap to configure the replaceable component in the housing.

2. The multi-purpose waterproof connector according to claim 1, characterized in that: 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 on the front section of the housing in the radial direction, and a limiting step is provided in the inner cavity of the front section of the waterproof body; It also includes a latch; the latch is inserted from the insertion port and can extend into the inner cavity; the space in the inner cavity between the portion of the latch extending into the inner cavity and the limiting step is used to accommodate the boss and the spring; the ceramic insert can retract when squeezed and rebound under the action 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 tubing, and a tail sleeve; The crimping ring is used to crimp the outer sheath or aramid fiber of the optical cable onto the crimping portion at the tail end of the rear section of the housing; the heat shrink tubing is used to fit over the crimping ring to seal it; the tail sleeve is used to fit over and fix the rear section of the housing.

4. The multi-purpose waterproof connector according to claim 3, characterized in that: The fixed tail sleeve is used to limit the locking cap fitted on the rear section of the housing from the rear.

5. The multi-purpose waterproof connector according to claim 1, characterized in that: The outer surface of the front section of the housing near the flange is provided with a sliding groove 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 mates with the slide 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; and a first boss that mates with the limiting groove is provided on the inner side of the first locking member. The first inner sleeve is fitted onto the front part of the housing and is limited in the circumferential direction by the first inner rib cooperating with the sliding groove; the first locking member 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 member.

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 member; the second inner sleeve has a second inner rib that mates with the slide 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 member is provided with a second boss that mates with the annular limiting groove, and the second locking member is rotatably fitted onto the second inner sleeve by the cooperation of the second boss and the annular limiting groove.

8. The multi-purpose waterproof connector according to claim 7, characterized in that: The second inner sleeve has an abutment edge with a notch along the circumferential direction. The inner side of the second locking member has an abutment ring that mates with the abutment edge. The front part of the abutment ring has a limiting boss corresponding to the notch of the abutment edge. The rotation range of the second locking member is limited by the engagement of the limiting boss with 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 part of the housing, so that the waterproof body forms a tube structure.

10. The multi-purpose waterproof connector according to claim 1, characterized in that: It also includes an SC housing; the SC housing is fitted onto the front body of the housing, and the waterproof body is configured as a fiber optic connector adapted to the SC adapter.

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