Waterproof connector with adjustable branch length

By designing a waterproof connector with adjustable branch length, and utilizing threaded connections and limiting structures to adjust the branch length of the LC dual connector, the problem of branch bending is solved, ensuring stable transmission of fiber optic signals and the waterproof performance of the connector.

CN117148510BActive Publication Date: 2025-12-16GUANGDONG HENGTONG PHOTOELECTRIC SCI & TECH +1
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Patent Information

Application Number
CN202311156794.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-08
Publication Date
2025-12-16
Estimated Expiration
2043-09-08

AI Technical Summary

Technical Problem

The fixed branch length of existing LC duplex connectors can easily lead to branch bending, which can cause fiber breakage and affect signal transmission stability.

Method used

A waterproof connector with adjustable branch length was designed. The branch length can be adjusted by means of a combination of length adjustment component and inner sleeve and threaded connection to avoid branch bending. The connector includes threaded connection of first segment tube and second segment tube, limiting groove and claw structure of inner sleeve, limiting constriction of outer sleeve and other components to ensure the appropriate length of branch in inner sleeve.

Benefits of technology

The LC dual connector branch length can be flexibly adjusted, avoiding branch bending, ensuring stable signal transmission in the optical fiber within the branch, and improving the connector's waterproof performance and ease of installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a waterproof connector with adjustable branch length and belongs to the technical field of waterproof connectors.The waterproof connector with adjustable branch length comprises an LC double connector, two branches and a cable sheath, the two branches are arranged in the cable sheath, a length adjusting assembly, the length adjusting assembly comprises a first segmented pipe and a second segmented pipe, the first segmented pipe is internally provided with an internal thread, the outer wall surface of the head of the second segmented pipe is provided with an external thread, the first segmented pipe is threadedly connected with the second segmented pipe, the second segmented pipe is sleeved on the cable sheath, and the cable sheath is adhesively connected with the second segmented pipe, and an inner sleeve is sleeved on the length adjusting assembly, and the first segmented pipe is stopped in the limiting groove of the inner sleeve.The length of the branch of the LC double connector in the inner sleeve can be adjusted according to actual use conditions, the branch is prevented from being bent, and the stable transmission of signals in the optical fiber in the branch is ensured.
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Description

Technical Field

[0001] This invention relates to the field of waterproof connector technology, and more particularly to a waterproof connector with adjustable branch length. Background Technology

[0002] Fiber optic patch cords can be used in fiber optic communication systems, fiber-to-the-home (FTTH), fiber optic data transmission, fiber optic CATV, local area networks (LANs), optical testing equipment, and fiber optic sensors. Drop cable patch cords are primarily used for connecting outdoor fiber optic distribution boxes to the fiber optic modem in the home. Advanced manufacturing processes ensure the stability and durability of data transmission. Currently, waterproof connectors are widely used. The production of LC dual waterproof connectors involves issues related to the consistency of the two connectors and the control of branch lengths. Previously, T-type splitters were used for positioning.

[0003] When the length of the LC dual connector in the inner sleeve is too long, the fixed length of the T-type splitter can easily cause the branch of the LC dual connector to bend, which in severe cases can cause the internal optical fiber of the branch to break.

[0004] Therefore, there is an urgent need to provide a waterproof connector with adjustable branch length to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a waterproof connector with adjustable branch length, which can adjust the length of the branch of the LC dual connector in the inner sleeve according to the actual use, avoid branch bending, and ensure stable signal transmission in the optical fiber within the branch.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] Waterproof connector with adjustable branch length, including:

[0008] An LC dual connector includes two branches and a cable sheath, wherein the two branches are disposed within the cable sheath;

[0009] The length adjustment assembly includes a first segment tube and a second segment tube. The first segment tube has an internal thread, and the outer wall surface of the head of the second segment tube has an external thread. The first segment tube and the second segment tube are threaded together. The second segment tube is sleeved on the cable sheath, and the cable sheath is bonded to the second segment tube.

[0010] The inner sleeve is fitted onto the length adjustment assembly, and the first segmented tube is stopped within the limiting groove of the inner sleeve.

[0011] As an optional solution for a waterproof connector with adjustable branch length, the inner sleeve is provided with multiple clamping claws at circumferential intervals at its tail end. The multiple clamping claws surround and form a clamping space, and the multiple clamping claws abut against the outer wall surface of the second segment tube.

[0012] As an optional solution for the waterproof connector with adjustable branch length, the waterproof connector with adjustable branch length also includes an outer sleeve, which is sleeved on the inner sleeve. The tail of the outer sleeve is provided with a limiting constriction, and the inner wall surface of the limiting constriction abuts against the outer wall surface of the plurality of grippers.

[0013] As an alternative to a waterproof connector with adjustable branch length, the limiting constriction has a conical structure.

[0014] As an optional solution for a waterproof connector with adjustable branch length, the head of the outer sleeve is provided with a connection hole, and the connector on the transmitter can be threadedly connected to the connection hole of the head of the outer sleeve.

[0015] As an optional solution for a waterproof connector with adjustable branch length, the outer wall of the inner sleeve is provided with a limiting step in an annular shape, and a sealing ring is sandwiched between the tail of the connector and the limiting step.

[0016] As an optional solution for the waterproof connector with adjustable branch length, the waterproof connector with adjustable branch length also includes a protective cap, one end of which is provided with a hanging hole, and the other end of which is provided with a first connecting part, which can be threadedly connected to the connecting hole of the outer sleeve head.

[0017] As an alternative to the branch length adjustable waterproof connector, the branch length adjustable waterproof connector also includes a wire harness, which is sleeved on the second segment tube. The wire harness includes a first annular segment, a spiral segment, and a second annular segment. The first annular segment and the second annular segment are respectively disposed at opposite ends of the spiral segment. The first annular segment is detachably connected to the outer sleeve.

[0018] As an optional solution for a waterproof connector with adjustable branch length, the tail of the outer sleeve is provided with a second connecting part, and the first annular segment is threaded, plugged in or snapped into the second connecting part.

[0019] As an alternative to the waterproof connector with adjustable branch length, the outer diameter of the first segment tube is larger than the outer diameter of the second segment tube.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] The waterproof connector with adjustable branch length provided by this invention comprises an LC dual connector, a length adjustment component, and an inner sleeve sequentially connected. The first segment tube of the length adjustment component is stopped within the limiting groove of the inner sleeve. The cable sheath of the LC dual connector is bonded to the second segment tube of the length adjustment component. By rotating the second segment tube, the length of the second segment tube screwed into the first segment tube is changed, thereby adjusting the length of the branch of the LC dual connector within the inner sleeve. This ensures that the branch is always at a suitable length within the inner sleeve, preventing bending of the branch and guaranteeing stable transmission of signals through the optical fiber within the branch. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0023] Figure 1 This is an assembly diagram of the waterproof connector with adjustable branch length in an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the waterproof connector with adjustable branch length in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the LC dual connector in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the length adjustment component in an embodiment of the present invention;

[0027] Figure 5 This is an exploded view of the length adjustment component in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the inner sleeve structure according to an embodiment of the present invention;

[0029] Figure 7 This is an assembly diagram of the LC double connector, length adjustment assembly, and inner sleeve in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the outer sleeve structure in an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the assembly of the transmitter's connector, sealing ring, and inner sleeve in an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the structure of the wire harness in an embodiment of the present invention.

[0033] Figure label:

[0034] 100. Connectors;

[0035] 1. LC double connector; 2. Length adjustment assembly; 3. Inner sleeve; 4. Outer sleeve; 5. Protective cap; 51. Hanging hole; 52. First connecting part; 6. Cable harness; 61. First annular segment; 62. Spiral segment; 63. Second annular segment; 7. Sealing ring;

[0036] 11. Branch; 12. Cable sheath;

[0037] 21. First section pipe; 22. Second section pipe;

[0038] 31. Gripper; 32. Limiting step; 33. Limiting groove;

[0039] 41. Limiting and narrowing opening; 42. Connecting hole; 43. Second connecting part. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] To adjust the length of the LC dual connector branch within the inner sleeve according to actual usage, avoid branch bending, and ensure stable signal transmission within the fiber optic branch, this embodiment provides a waterproof connector with adjustable branch length. The following describes the specific implementation. Figures 1 to 10 The specific content of this embodiment will be described in detail.

[0045] like Figures 1 to 7 As shown, in this embodiment, the waterproof connector with adjustable branch length includes an LC double connector 1, a length adjustment component 2, and an inner sleeve 3. The LC double connector 1 includes two branches 11 and a cable sheath 12, with the two branches 11 disposed within the cable sheath 12. The length adjustment component 2 includes a first segment tube 21 and a second segment tube 22. The first segment tube 21 has an internal thread, and the outer wall surface of the head of the second segment tube 22 has an external thread. The first segment tube 21 and the second segment tube 22 are threadedly connected, and the second segment tube 22 is fitted onto the cable sheath 12, with the cable sheath 12 bonded to the second segment tube 22. The inner sleeve 3 is fitted onto the length adjustment component 2, and the first segment tube 21 is stopped within the limiting groove 33 of the inner sleeve 3.

[0046] In short, the waterproof connector with adjustable branch length provided by the present invention comprises an LC dual connector 1, a length adjustment component 2, and an inner sleeve 3, which are sequentially connected. The first segment tube 21 of the length adjustment component 2 is stopped in the limiting groove 33 of the inner sleeve 3. The cable sheath 12 of the LC dual connector 1 is bonded to the second segment tube 22 of the length adjustment component 2. By rotating the second segment tube 22, the length of the second segment tube 22 screwed into the first segment tube 21 is changed, thereby adjusting the length of the branch 11 of the LC dual connector 1 in the inner sleeve 3. This ensures that the branch 11 is always at a suitable length in the inner sleeve 3, preventing the branch 11 from bending and ensuring stable transmission of the signal through the optical fiber in the branch 11.

[0047] Furthermore, such as Figure 6 and Figure 7 As shown, the inner sleeve 3 has multiple clamping claws 31 spaced circumferentially at its tail end, forming a clamping space. The multiple clamping claws 31 abut against the outer wall of the second segmented tube 22. For example, the inner sleeve 3 is made of plastic, and the multiple clamping claws 31 have a certain elasticity to ensure that the multiple clamping claws 31 exert a suitable clamping force on the second segmented tube 22.

[0048] Furthermore, such as Figure 2 and Figure 8 As shown, the waterproof connector with adjustable branch length also includes an outer sleeve 4, which is fitted onto the inner sleeve 3. The tail of the outer sleeve 4 has a limiting constriction 41, the inner wall of which abuts against the outer wall of multiple grippers 31. Specifically, the limiting constriction 41 has a conical structure. As the outer sleeve 4 gradually fits onto the inner sleeve 3, the inner diameter of the limiting constriction 41 at the tail of the outer sleeve 4 gradually decreases, thereby clamping the multiple grippers 31.

[0049] Furthermore, such as Figure 1 and Figure 8 As shown, the head of the outer sleeve 4 has a connecting hole 42, and the connector 100 on the transmitter can be threaded into the connecting hole 42 on the head of the outer sleeve 4. After the outer sleeve 4 is fitted onto the inner sleeve 3, the head of the outer sleeve 4 is screwed onto the connector 100 on the transmitter, thus realizing the quick installation of the waterproof connector with adjustable branch length.

[0050] Furthermore, such as Figure 6 and Figure 9 As shown, a limiting step 32 is provided annularly on the outer wall of the inner sleeve 3, and a sealing ring 7 is sandwiched between the tail of the connector 100 and the limiting step 32. By adding the sealing ring 7, the assembly sealing performance of the adjustable branch length waterproof connector is improved, thereby increasing the waterproof rating.

[0051] Furthermore, such as Figure 1 As shown, the adjustable-length waterproof connector also includes a protective cap 5. One end of the protective cap 5 has a hanging hole 51, and the other end has a first connecting part 52, which can be threadedly connected to the connecting hole 42 at the head of the outer sleeve 4. When the adjustable-length waterproof connector is not installed, the protective cap 5 is installed on the outer sleeve 4 to protect the adjustable-length waterproof connector and prevent dust accumulation.

[0052] Furthermore, the waterproof connector with adjustable branch length also includes a cable harness 6, which is sleeved on the second segment tube 22. The cable harness 6 includes a first annular segment 61, a spiral segment 62, and a second annular segment 63. The first annular segment 61 and the second annular segment 63 are respectively disposed at opposite ends of the spiral segment 62. The first annular segment 61 is detachably connected to the outer sleeve 4. By adding the cable harness 6, the bending angle of the small cable is reduced.

[0053] Furthermore, such as Figure 1 , Figure 8 and Figure 10As shown, the tail of the outer sleeve 4 is provided with a second connecting part 43, and the first annular segment 61 is threadedly connected, inserted, or snapped into the second connecting part 43. Specifically, in this embodiment, the first annular segment 61 is provided with an internal thread, and the outer wall surface of the second connecting part 43 is provided with an external thread, so as to realize the threaded connection between the first annular segment 61 and the second connecting part 43.

[0054] For example, such as Figure 4 and Figure 5 As shown, the outer diameter of the first segmented tube 21 is greater than the outer diameter of the second segmented tube 22, the inner diameter of the limiting groove 33 is greater than the outer diameter of the second segmented tube 22, and the inner diameter of the limiting groove 33 is not greater than the outer diameter of the first segmented tube 21, so that the first segmented tube 21 is stably embedded in the limiting groove 33.

[0055] Furthermore, both the first segment tube 21 and the second segment tube 22 are made of insulating material.

[0056] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A waterproof connector with adjustable branch length, characterized in that, include: LC dual connector (1) includes two branches (11) and a cable sheath (12), wherein the two branches (11) are disposed within the cable sheath (12); The length adjustment assembly (2) includes a first segmented tube (21) and a second segmented tube (22). The first segmented tube (21) has an internal thread, and the outer wall of the head of the second segmented tube (22) has an external thread. The first segmented tube (21) and the second segmented tube (22) are threadedly connected. The second segmented tube (22) is sleeved on the cable sheath (12), and the cable sheath (12) is bonded to the second segmented tube (22). Both the first segmented tube (21) and the second segmented tube (22) are made of insulating material. The inner sleeve (3) is fitted onto the length adjustment component (2), and the first segmented tube (21) stops in the limiting groove (33) of the inner sleeve (3). The tail end of the inner sleeve (3) is provided with a plurality of clamps (31) spaced apart in the circumferential direction. The plurality of clamps (31) surround to form a clamping space. The plurality of clamps (31) abut against the outer wall surface of the second segmented tube (22).

2. The waterproof connector with adjustable branch length according to claim 1, characterized in that, The waterproof connector with adjustable branch length also includes an outer sleeve (4), which is sleeved on the inner sleeve (3). The tail of the outer sleeve (4) is provided with a limiting constriction (41), and the inner wall surface of the limiting constriction (41) abuts against the outer wall surface of the plurality of grippers (31).

3. The waterproof connector with adjustable branch length according to claim 2, characterized in that, The limiting constriction (41) has a conical structure.

4. The waterproof connector with adjustable branch length according to claim 2, characterized in that, The outer sleeve (4) has a connection hole (42) inside its head, and the connector (100) on the transmitter can be threadedly connected to the connection hole (42) at the head of the outer sleeve (4).

5. The waterproof connector with adjustable branch length according to claim 4, characterized in that, The outer wall of the inner sleeve (3) is provided with a limiting step (32) in an annular shape, and a sealing ring (7) is sandwiched between the tail of the connector (100) and the limiting step (32).

6. The waterproof connector with adjustable branch length according to claim 4, characterized in that, The waterproof connector with adjustable branch length also includes a protective cap (5), one end of which is provided with a hanging hole (51), and the other end of which is provided with a first connecting part (52). The first connecting part (52) can be threadedly connected to the connecting hole (42) at the head of the outer sleeve (4).

7. The waterproof connector with adjustable branch length according to claim 2, characterized in that, The waterproof connector with adjustable branch length also includes a wire harness (6), which is sleeved on the second segment tube (22). The wire harness (6) includes a first annular segment (61), a spiral segment (62), and a second annular segment (63). The first annular segment (61) and the second annular segment (63) are respectively disposed at opposite ends of the spiral segment (62). The first annular segment (61) is detachably connected to the outer sleeve (4).

8. The waterproof connector with adjustable branch length according to claim 7, characterized in that, The outer sleeve (4) is provided with a second connecting part (43) at its tail end, and the first annular segment (61) is threadedly connected, plugged in or snapped into the second connecting part (43).

9. The waterproof connector with adjustable branch length according to any one of claims 1-8, characterized in that, The outer diameter of the first segmented pipe (21) is larger than the outer diameter of the second segmented pipe (22).

Citation Information

Patent Citations

  • Universal waterproof connector

    CN113589443A

  • Two-core waterproof optical fiber cable assembly

    CN215181039U

  • Waterproof connector with adjustable branch length

    CN220855256U