Optical fiber welding plastic sleeve device
By designing a fiber optic fusion splicing sleeve device, rapid and stable splicing of multiple optical fibers was achieved, solving the problem of time-consuming and easily broken fiber optic sleeve insertion and improving the efficiency and stability of fiber optic fusion splicing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-10
AI Technical Summary
During fiber optic fusion splicing, the insertion of the fiber optic plastic sheath is time-consuming and prone to breakage, affecting splicing efficiency and stability, especially in field operations or under urgent circumstances.
Design an optical fiber fusion splicing sleeve device, including a base and splicing components. Each splicing component has a fiber core inlet and several fiber core grooves and tube slots. The structure is simple and can splice multiple optical fibers at the same time, protecting the optical fibers from breakage.
It improves fiber optic splicing speed, reduces the risk of fiber breakage, and enhances splicing efficiency and stability, making it suitable for rapid connection of multi-core optical fibers.
Smart Images

Figure CN223986229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical fiber processing technology, and specifically to an optical fiber fusion splicing plastic sleeve device. Background Technology
[0002] In the field of modern communication technology, optical fiber communication has become one of the main methods of information transmission due to its advantages such as large capacity, low loss, and strong anti-interference capability. As a key link in the construction and maintenance of optical fiber communication networks, the quality and efficiency of optical fiber splicing directly affect the stability and reliability of the entire communication system.
[0003] Currently, fiber optic splicing methods can be mainly divided into two categories: thermal splicing and cold splicing. Thermal splicing utilizes the high temperature generated by the discharge of a fiber optic fusion splicer to melt the splice area, followed by re-splicing and reshaping to achieve a permanent fiber connection. This method is widely used in conventional fiber optic network deployment and maintenance. Cold splicing, on the other hand, is typically used for emergency fiber optic splicing scenarios. While relatively simple to operate, its connection strength and stability are slightly inferior to thermal splicing.
[0004] During fiber optic fusion splicing, a special plastic sleeve is typically used to protect the splice from damage caused by external environmental factors. However, in practice, especially in time-sensitive situations such as field operations or emergency repairs, the insertion of the plastic sleeve is a time-consuming and error-prone step. Firstly, with the continuous expansion of communication networks, the number of fiber cores in actual work is at least six, requiring the insertion of plastic sleeves one by one. This results in operators spending a significant amount of time on the plastic sleeves, severely impacting overall fiber optic fusion efficiency. Secondly, due to the inherent fragility of optical fibers and the extremely limited space inside the plastic sleeve, operators must be extremely careful when inserting the fiber. Even slight mishaps can break the fiber, leading to fusion failure and requiring re-splicing, further increasing time and cost. Utility Model Content
[0005] The purpose of this invention is to provide a fiber optic fusion splicing sleeve device, which has a simple structure, is easy to operate, and has a fast fiber optic splicing speed. Moreover, this device can protect the fiber optic cable during the splicing process, so that the fiber optic cable is not easily broken during the splicing process, and it is highly practical.
[0006] To achieve the above objectives, this utility model proposes an optical fiber fusion splicing sleeve device, including a base and a sleeve assembly disposed on the upper surface of the base;
[0007] Each set of socket components includes a fiber core inlet and several fiber core grooves, as well as a tube groove for placing the plastic sleeve; the two ends of the fiber core groove are respectively connected to the fiber core inlet and the tube groove;
[0008] In each set of sockets, there is one fiber core inlet, and the number of fiber core grooves and tube slots are equal. After each fiber core groove is dispersed from the fiber core inlet, its end is connected to a tube slot.
[0009] Furthermore, in each set of socket components, there are 6 fiber core grooves and 6 tube grooves.
[0010] Furthermore, the fiber core inlet is an arc-shaped groove located at the edge of the base.
[0011] Furthermore, the pipes and trenches are parallel to each other.
[0012] Furthermore, a cover plate is movably connected to the side of the base, which can cover the fiber core groove area when closed.
[0013] Furthermore, the base has a trapezoidal or fan-shaped cross-section, and the width of the base at the end where the tube groove is located is greater than the width of the base at the end where the fiber core inlet is located.
[0014] Furthermore, the diameter of the fiber core groove is smaller than the diameter of the tube groove, and the center of the fiber core groove is aligned with the center of the tube groove connection.
[0015] The beneficial effects of this utility model are as follows: the device of this utility model has a simple structure and is easy to operate. Using the device of this utility model, multiple fiber cores can be spliced at the same time, which greatly improves the speed of fiber splicing. Moreover, the fiber core groove and tube groove during the splicing process can limit the path of the fiber and prevent it from swinging left and right and breaking, thereby playing a role in protecting the fiber during the splicing process. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of a structure of this utility model with only one set of socket components.
[0018] Figure 2 Is Figure 1 A schematic diagram of a structure with a cover plate added to the existing structure.
[0019] Figure 3 yes Figure 2 A schematic diagram of a structure after the cover is closed.
[0020] Figure 4 This is a schematic diagram of a structure of the present invention with three sets of socket components.
[0021] Figure 5 Is Figure 4 A schematic diagram of a structure with a cover plate added to the existing structure.
[0022] Figure 6 yes Figure 5 A schematic diagram of a structure after the cover is closed.
[0023] In the diagram: 1. Base; 2. Connecting assembly; 3. Plastic sleeve; 4. Cover plate; 5. Hinge;
[0024] 201. Fiber core inlet; 202. Fiber core groove; 203. Tube groove. Detailed Implementation
[0025] The illustrated embodiments are provided to better illustrate the present invention, but the content of the present invention is not limited to the illustrated embodiments. Therefore, non-essential improvements and adjustments made to the implementation schemes by those skilled in the art based on the above-described content of the present invention still fall within the protection scope of the present invention.
[0026] like Figures 1 to 6 As shown, an optical fiber fusion splicing sleeve device includes a base 1 and a sleeve assembly 2 disposed on the upper surface of the base 1, wherein the sleeve assembly 2 is a group or more.
[0027] Each set of socket components 2 includes a fiber core inlet 201 and several fiber core grooves 202, and also includes a tube groove 203 for placing the plastic sleeve 3; the two ends of the fiber core groove 202 are respectively connected to the fiber core inlet 201 and the tube groove 203; in each set of socket components 2, the number of fiber core inlets 201 is one, and the number of fiber core grooves 202 and tube grooves 203 are equal. After each fiber core groove 202 is dispersed from the fiber core inlet 201, its end is respectively connected to a tube groove 203.
[0028] This invention's device is mainly used in the optical fiber splicing process, where a plastic sleeve 3 is fitted onto the fiber core. In actual use, each splicing assembly 2 requires first embedding the plastic sleeve 3 into the slot 203, then placing several fiber cores uniformly at the fiber core inlet 201, aligning each fiber core with a different fiber core groove 202, and then simultaneously pushing the fiber cores into the fiber core groove 202. Each fiber core moves forward along the path of the fiber core groove 202 and exits from the plastic sleeve 3 after reaching it. Using this invention's device allows for the simultaneous splicing of multiple fiber cores, greatly improving the speed of optical fiber splicing. Furthermore, the fiber core groove 202 and slot 203 during the splicing process limit the fiber's path, preventing it from swaying and breaking, thus protecting the optical fiber during the splicing process.
[0029] In this invention, the outer diameter of the plastic sleeve 3 is equal to the diameter of the groove 203, thus ensuring that the plastic sleeve 3 is not easily displaced after being embedded in the groove 203, facilitating the smooth passage of the fiber core through the plastic sleeve 3. In the figure, a certain gap is left between the plastic sleeve 3 and the groove 203. This is to more intuitively illustrate the positional relationship between the groove 203 and the plastic sleeve 3, and does not indicate that there is a large gap between them.
[0030] In this invention, each set of socket components 2 contains six fiber core grooves 202 and six tube slots 203. Currently, optical fibers typically have 4, 6, 8, 12, 24, 48, and 72 cores. To ensure applicability, this invention sets the number of fiber core grooves 202 and tube slots 203 in each set of socket components 2 to six, ensuring compliance with the minimum fiber core quantity requirement. Furthermore, this invention allows for more than one set of socket components 2, the specific number to be selected based on actual needs. For small-capacity optical fibers, one set of socket components 2 can be used, specifically as follows... Figures 1 to 3 As shown; for medium or high capacity optical fibers, three sets of socket components 2 can be set up, specifically as follows: Figures 4 to 5 As shown, when high-capacity optical fibers need to be spliced, they can be spliced in batches. For example, if there are three sets of splice components 2, 18 fiber cores can be spliced simultaneously. After splicing, the remaining 18 fiber cores can be spliced simultaneously. Theoretically, more than three sets of splice components 2 can be set to meet the needs of high capacity. However, if the number of splice components 2 is too large, the device will be too bulky and inconvenient to carry or transport. Therefore, this utility model preferably sets three sets of splice components 2.
[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this utility model, the fiber core inlet 201 is an arc-shaped groove provided on the edge of the base 1.
[0032] Designing the fiber inlet 201 as an arc-shaped groove creates a smooth structure, preventing the fiber from being scratched or damaged when it comes into contact with the inlet 201, thus protecting the fiber. In actual design, each set of sleeve components 2 has a positioning hole at the fiber inlet 201 that communicates with the fiber groove 202 for initial positioning of the fiber. In each fiber inlet 201, the positioning holes are arranged in a tight row. Since the fiber inlet 201 is an arc-shaped groove, the row of positioning holes is actually distributed along the arc-shaped groove, and the line connecting the centers of the positioning holes forms an arc. When using this invention, the operator first arranges the six fiber cores in each set of sleeve components 2 into a row, then inserts the row of fiber cores into the corresponding positioning holes on the fiber inlet 201, then pushes the fiber cores toward the fiber groove 202 until they pass through the plastic sleeve 3, and finally removes the plastic sleeve 3 along with the fiber cores.
[0033] like Figures 1 to 6 As shown, in this invention, the tube grooves 203 are parallel to each other. The parallelism between the tube grooves 203 ensures a more orderly structural arrangement and facilitates a smooth connection process.
[0034] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in this utility model, a cover plate 4 is movably connected to the side of the base 1. When the cover plate 4 is closed, it can cover the fiber core groove 202 area. In this utility model, the cover plate 4 is hinged to the base 1. In one embodiment of this utility model, the cover plate 4 and the base 1 are movably connected by a hinge 5. The cover prevents the fiber core from jumping out from the upper surface of the fiber core groove 202 during the fiber core fitting process, ensuring the smooth progress of the fitting process and avoiding the need for readjustment after the fiber core jumps out, thus greatly improving the fitting efficiency.
[0035] like Figures 1 to 6 As shown, in this utility model, the cross-section of the base 1 is trapezoidal or fan-shaped, and the width of the base 1 at the end where the tube groove 203 is provided is greater than the width of the base 1 at the end where the fiber core inlet 201 is provided.
[0036] In this invention, each set of socket components 2 has only one fiber inlet 201, allowing all fiber cores to be pushed in simultaneously during socketing. Therefore, the inlets of each set of socket components 2 are concentrated into an arc-shaped groove. However, after each fiber core enters a different fiber core groove 202, its end will correspond to a different plastic sleeve 3. Therefore, the ends of each fiber core are not concentrated. This requires that the width of the base 1 at the end where the tube groove 203 is set needs to be greater than the width of the base 1 at the end where the fiber core inlet 201 is set, thereby meeting the requirement that one fiber core inlet 201 of the socket component 2 corresponds to multiple tube grooves 203.
[0037] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this utility model, the diameter of the fiber core groove 202 is smaller than the diameter of the tube groove 203, and the center of the connection between the fiber core groove 202 and the tube groove 203 is aligned.
[0038] In this invention, both the fiber core groove 202 and the tube groove 203 are smooth structures, thereby reducing the resistance encountered by the fiber core when passing through the fiber core groove 202. Furthermore, the cross-sections of both the fiber core groove 202 and the tube groove 203 are semi-circular. The diameter of the fiber core groove 202 is smaller than the diameter of the tube groove 203, facilitating the fiber core's passage through the plastic sleeve 3 after placement within the tube groove 203. In practical design, the diameter of the fiber core groove 202 is also smaller than the inner diameter of the plastic sleeve 3 to ensure the fiber core can smoothly pass through the plastic sleeve 3 after passing through the fiber core groove 202, thus improving the splicing efficiency. Specifically, the diameter of the fiber core groove 202 is 0.5 mm, the diameter of the tube groove is 1.8 cm, and the inner diameter of the plastic sleeve 3 is 1.5 cm. To ensure smooth connection, the paths of the fiber core groove 202 and the tube groove 203 in this invention are both straight lines. This prevents the fiber core from twisting and breaking when it enters the fiber core groove 202 and the tube groove 203, thus ensuring a smooth connection process. 0.5 mm
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An optical fiber fusion sleeve apparatus, comprising: The base (1) and the sleeve assembly (2) arranged on the upper surface of the base (1); Each group of sleeve assembly (2) includes a core inlet (201) and a plurality of core grooves (202), and also includes a pipe groove (203) for placing a plastic sleeve (3); the two ends of the core groove (202) are respectively communicated with the core inlet (201) and the pipe groove (203); In each group of sleeve assembly (2), the number of core inlet (201) is one, and the number of core groove (202) and pipe groove (203) is equal; each core groove (202) is dispersed from the core inlet (201) and respectively communicated with a pipe groove (203) at the end.
2. The optical fiber fusion sleeve apparatus of claim 1, wherein, In each group of sleeve assembly (2), the number of core groove (202) and pipe groove (203) is 6.
3. The optical fiber fusion sleeve apparatus according to claim 1 or 2, wherein, The core inlet (201) is an arc-shaped groove arranged at the edge of the base (1).
4. The optical fiber fusion sleeve apparatus according to claim 1 or 2, wherein The pipe grooves (203) are parallel to each other.
5. The optical fiber fusion sleeve apparatus of claim 3, wherein, The pipe grooves (203) are parallel to each other.
6. The optical fiber fusion sleeve apparatus of claim 1, 2, or 5, wherein, The base (1) is movably connected with a cover plate (4) on the side surface, and the cover plate (4) covers the area of the core groove (202) after being closed.
7. The optical fiber fusion sleeve apparatus of claim 3, wherein, The base (1) is movably connected with a cover plate (4) on the side surface, and the cover plate (4) covers the area of the core groove (202) after being closed.
8. The optical fiber fusion sleeve apparatus of claim 4, wherein, The base (1) is movably connected with a cover plate (4) on the side surface, and the cover plate (4) covers the area of the core groove (202) after being closed.
9. The optical fiber fusion sleeve apparatus of claims 1, 2, 5, 7 or 8, wherein, The cross section of the base (1) is trapezoidal or fan-shaped, and the width of the base (1) at one end where the pipe groove (203) is arranged is greater than the width of the base (1) at the other end where the core inlet (201) is arranged.
10. The optical fiber fusion sleeve apparatus of claims 1, 2, 5, 7 or 8, wherein, The diameter of the core groove (202) is smaller than the diameter of the pipe groove (203), and the centers of the connection between the core groove (202) and the pipe groove (203) are aligned.