Optical fiber universal protection tube convenient to position and assemble
By splicing half-tubes to form a ball-joint structure, the fiber optic universal protection tube solves the problem of complex installation of fiber optic protection tubes at turning positions, and realizes convenient positioning and assembly and efficient installation process.
Patent Information
- Application Number
- CN202520070935.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The existing fiber optic protection pipes are complex to install at turning points, making flexible construction difficult, and the assembly of parts is cumbersome, affecting installation efficiency.
It adopts a semi-tube splicing structure, using the interlocking of inner and outer spherical shells to form a ball joint structure. Universal adjustment is achieved by the overlapping and pressing of straight rods and arc-shaped claws, and it is fixed by bolts and nuts, simplifying the installation process.
It improves the installation efficiency of fiber optic protection tubes, reduces the error rate, simplifies the operation process, and enables convenient positioning and assembly.
Smart Images

Figure CN223926668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical fiber installation engineering technology, specifically to an optical fiber universal protection tube that is easy to position and assemble. Background Technology
[0002] Optical fiber is a thin, long fiber made of glass or plastic that transmits light signals. When an optical fiber is folded, the glass fibers inside are compressed, causing the light signal transmission to be obstructed or interrupted. Specifically, folding can cause tiny cracks or breaks inside the fiber. These damages can severely affect the efficiency and quality of light transmission, leading to signal loss, data transmission errors, or even communication interruptions.
[0003] Because optical fibers cannot be folded and are relatively fragile, they require protective sheathing during installation. Conventional sheathing is a rigid straight tube; while it provides protection, it cannot be turned, necessitating the addition of bends at different angles where the fiber's direction changes. This is both inconvenient and restrictive in construction. To address this issue, researchers have developed variable-angle fiber optic protective tubes. These products often employ a ball joint structure for omnidirectional adjustment, and thanks to the rigidity of the ball joint, reliable protection is maintained even at turning points. However, these products are relatively complex in construction, cumbersome to install, and time-consuming. Furthermore, they typically involve the assembly of multiple parts, hindering installation efficiency. Summary of the Invention
[0004] The technical problem to be solved by this utility model is: how to design a fiber optic universal protection tube that is easy to position and assemble.
[0005] To achieve the above technical objectives, the present invention adopts the following technical solution:
[0006] An easy-to-position and assemble fiber optic universal protection tube includes a semi-tube body, an outer hemispherical shell, a first rib, a straight rod, a second rib, an arc-shaped claw, an inner hemispherical shell, and a through hole. The semi-tube body has an outer hemispherical shell and an inner hemispherical shell at both ends. The outer hemispherical shell has a first rib and a straight rod on one side and a second rib and an arc-shaped claw on the other side. The first rib and the second rib both have through holes.
[0007] Preferably, the upper and lower half-tubes are joined together to form a pipe segment. The two outer hemispheres at the ends of the two half-tubes are joined together to form an outer spherical shell, and the two inner hemispheres at the ends of the two half-tubes are joined together to form an inner spherical shell. The first rib of the upper half-tube is attached to the second rib of the lower half-tube. The straight rod of the upper half-tube is interlocked with the arc-shaped claw of the lower half-tube. The second rib of the upper half-tube is attached to the first rib of the lower half-tube. The arc-shaped claw of the upper half-tube is interlocked with the straight rod of the lower half-tube. The through holes on the first rib of the upper half-tube are aligned with the through holes on the second rib of the lower half-tube.
[0008] Preferably, the bolt passes through the alignment and is fastened to the nut.
[0009] Preferably, several pipe sections are connected end to end in sequence, and the connection includes: the inner spherical shell located on the first pipe section and the outer spherical shell located on the last pipe section are interlocked.
[0010] This invention provides a fiber optic universal protective tube that facilitates positioning and assembly. The technical solution uses two half-tubes spliced together to form a tube segment. Several tube segments are joined by inner and outer spherical shells, forming a ball-joint-like structure to achieve universal angle adjustment. Regarding the splicing structure of the two half-tubes, this invention employs a structure of overlapping and pressing straight rods and arc-shaped claws. During installation, workers only need to manually complete the overlapping and pressing to achieve good positioning and alignment. Then, bolts and nuts are installed to complete the installation. There is no need to manually align and align the two half-tubes before installing bolts and nuts, thus improving installation efficiency. Furthermore, apart from bolts and nuts, this invention uses only one type of component, which also helps improve installation efficiency and reduce the error rate. Attached Figure Description
[0011] Figure 1 This is a structural diagram of the present invention;
[0012] Figure 2 yes Figure 1 Cross-sectional view at point AA;
[0013] Figure 3 yes Figure 1 Top view of the product;
[0014] Figure 4 yes Figure 3 Cross-sectional view at point BB;
[0015] Figure 5 yes Figure 3 Cross-sectional view at point C;
[0016] Figure 6 yes Figure 4 A magnified view of a section at point D;
[0017] In the picture:
[0018] 1. Semi-tube body 2. Outer hemispherical shell 3. First rib 4. Straight rod
[0019] 5. Second rib; 6. Arc-shaped claw; 7. Inner hemispherical shell; 8. Through hole. Detailed Implementation
[0020] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.
[0021] Example 1
[0022] Optical fiber universal protection tubes that facilitate positioning and assembly, such as Figures 1-6 As shown, it includes a semi-tube body 1, an outer hemispherical shell 2, a first rib 3, a straight rod 4, a second rib 5, an arc-shaped claw 6, an inner hemispherical shell 7, and a through hole 8. The semi-tube body 1 has an outer hemispherical shell 2 and an inner hemispherical shell 7 at both ends. The outer hemispherical shell 2 has a first rib 3 and a straight rod 4 on one side, and a second rib 5 and an arc-shaped claw 6 on the other side. The first rib 3 and the second rib 5 both have through holes 8.
[0023] Example 2
[0024] Optical fiber universal protection tubes that facilitate positioning and assembly, such as Figures 1-6As shown, it includes a semi-tube body 1, an outer hemispherical shell 2, a first rib 3, a straight rod 4, a second rib 5, an arc-shaped claw 6, an inner hemispherical shell 7, and a through hole 8. The semi-tube body 1 has an outer hemispherical shell 2 and an inner hemispherical shell 7 at both ends. The outer hemispherical shell 2 has a first rib 3 and a straight rod 4 on one side, and a second rib 5 and an arc-shaped claw 6 on the other side. The first rib 3 and the second rib 5 both have through holes 8. The upper and lower half-tubes 1 are joined together to form a pipe segment. Two outer hemispherical shells 2 at the ends of the two half-tubes 1 are joined together to form an outer spherical shell, and two inner hemispherical shells 7 at the ends of the two half-tubes 1 are joined together to form an inner spherical shell. The first rib 3 of the upper half-tube 1 is fitted with the second rib 5 of the lower half-tube 1. The straight rod 4 of the upper half-tube 1 and the arc-shaped claw 6 of the lower half-tube 1 interlock. The second rib 5 of the upper half-tube 1 is fitted with the first rib 3 of the lower half-tube 1. The arc-shaped claw 6 of the upper half-tube 1 and the straight rod 4 of the lower half-tube 1 interlock. The through hole 8 on the first rib 3 of the upper half-tube 1 is aligned with the through hole 8 on the second rib 5 of the lower half-tube 1. A bolt passes through the aligned portion and is fastened to a nut. Several pipe sections are connected end to end in sequence, and the connection includes: the inner spherical shell located on the first pipe section and the outer spherical shell located on the last pipe section are interlocked.
[0025] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.
Claims
1. A fiber optic universal protection tube that facilitates alignment assembly, characterized in that The utility model relates to a half pipe body (1), outer half sphere shell (2), first rib plate (3), straight pole (4), second rib plate (5), arc claw (6), inner half sphere shell (7), through -hole (8), wherein, half pipe body (1) both ends have outer half sphere shell (2) and inner half sphere shell (7) respectively, the one side of outer half sphere shell (2) has first rib plate (3) and straight pole (4) respectively, the other side of outer half sphere shell (2) has second rib plate (5) and arc claw (6) respectively, and both have through -hole (8) on first rib plate (3) and second rib plate (5).
2. The easily positioned and assembled optical fiber universal protection tube according to claim 1, wherein, The upper and lower half pipe bodies (1) are joined to form a pipe section, the two outer half sphere shells (2) at the ends of the two half pipe bodies (1) are joined to form an outer sphere shell, the two inner half sphere shells (7) at the ends of the two half pipe bodies (1) are joined to form an inner sphere shell, the first rib plate (3) of the upper half pipe body (1) is attached to the second rib plate (5) of the lower half pipe body (1), the straight pole (4) of the upper half pipe body (1) is pressed against the arc claw (6) of the lower half pipe body (1), the second rib plate (5) of the upper half pipe body (1) is attached to the first rib plate (3) of the lower half pipe body (1), the arc claw (6) of the upper half pipe body (1) is pressed against the straight pole (4) of the lower half pipe body (1), the through -hole (8) on the first rib plate (3) of the upper half pipe body (1) is aligned with the through -hole (8) on the second rib plate (5) of the lower half pipe body (1), and the through -hole (8) on the second rib plate (5) of the upper half pipe body (1) is aligned with the through -hole (8) on the first rib plate (3) of the lower half pipe body (1).
3. The easily positioned and assembled optical fiber universal protection tube of claim 2, wherein, The bolt passes through the aligned position and is fastened with a nut.
4. The easily positioned and assembled optical fiber universal protection tube of claim 3, wherein, A plurality of pipe sections are sequentially connected end to end, and the connection includes that the inner sphere shell on the front pipe section is embedded into the outer sphere shell on the rear pipe section.