Optical fiber connector butt joint protection device

Abstract

The utility model discloses an optical fiber connector butt joint protection device, and aims to solve the problems of large occupied space, poor optical fiber connection effect and low reliability in the existing protection structure. The device comprises an optical fiber butt joint assembly and a protection assembly, and the protection assembly sleeves the optical fiber butt joint assembly. The optical fiber butt joint assembly comprises a first optical fiber connector, a second optical fiber connector and an adapter, the first optical fiber connector and the second optical fiber connector are in butt joint through the adapter, a limiting cavity is formed in the protection assembly, the inner diameter of the limiting cavity is matched with the outer diameter of the adapter, and the adapter abuts against the inner wall of the limiting cavity. The adapter abuts against the inner wall of the protection assembly through the limiting cavity, the butt joint strength is improved, and the butt joint stability is guaranteed; and the inner diameter of the limiting cavity is matched with the outer diameter of the adapter, so that the adapter can be accurately positioned in the optical fiber butt joint process, the butt joint effect of the first optical fiber connector and the second optical fiber connector is ensured, stable transmission of optical signals is facilitated, and signal loss is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cable laying, and in particular to a fiber optic connector mating protection device. Background Technology

[0002] Optical fiber is a widely used transmission medium in modern information technology, smart sensing, and other fields, and it is also commonly seen in people's daily lives. To meet the needs of information transmission and switching, optical fiber cannot be laid by simply connecting a single fiber from one end to the other; instead, it requires connecting two independent optical fibers through structures such as fiber optic connectors and adapters. The connection point between optical fibers is a weak point in optical fiber laying, especially in harsh construction environments. If the connection point is not properly protected, it is easily damaged by being stepped on, pulled, or squeezed, leading to fiber disconnection, connector cracking, or other damage, which significantly affects the information transmission quality at the fiber optic connection node.

[0003] Currently, the most common connection protection structure uses a protective box. Although it can protect the fiber optic connector, it has the problems of large size and difficulty in operation when connecting multiple fibers. In addition, it usually uses a snap-fit ​​connection with one end fixed and the other open, which results in poor fiber optic connection effect and low reliability. In harsh environments, the protective box may be squeezed or pulled, causing the fiber optic connection to break. Utility Model Content

[0004] The purpose of this invention is to provide a fiber optic connector mating protection device, which aims to solve the problems of large space occupation, poor fiber optic connection effect and low reliability in existing protection structures.

[0005] To address the aforementioned issues, this utility model provides a fiber optic connector mating protection device, comprising a fiber optic mating assembly and a protection assembly, wherein the protection assembly is sleeved on the fiber optic mating assembly.

[0006] The fiber optic connector assembly includes a first fiber optic connector, a second fiber optic connector, and an adapter. The first fiber optic connector and the second fiber optic connector are connected through the adapter. A limiting cavity is formed inside the protective assembly. The inner diameter of the limiting cavity is adapted to the outer diameter of the adapter, and the adapter abuts against the inner wall of the limiting cavity.

[0007] Preferably, the protective component includes a first protective tube and a second protective tube, the first protective tube being sleeved on the first optical fiber connector, the second protective tube being sleeved on the second optical fiber connector, and the first protective tube and the second protective tube being connected.

[0008] Preferably, one end of the first protective tube has a first connecting portion, and one end of the second protective tube has a second connecting portion. The outer diameter of the first connecting portion is adapted to the inner diameter of the second connecting portion, and the first protective tube and the second protective tube are connected through the first connecting portion and the second connecting portion.

[0009] Preferably, a first cavity is formed on the inner side of the second connecting part, the limiting cavity is disposed in the second protective tube, the first cavity is in communication with the limiting cavity, and the inner diameter of the first cavity is greater than or equal to the inner diameter of the limiting cavity.

[0010] Preferably, a second cavity is formed inside the second protective tube, and the first cavity and the second cavity are connected through the limiting cavity, wherein the inner diameter of the second cavity is smaller than the inner diameter of the limiting cavity.

[0011] Preferably, the length of the adapter is greater than or equal to the length of the limiting cavity.

[0012] Preferably, a third cavity is formed inside the first protective tube, the inner diameter of the third cavity is smaller than the outer diameter of the adapter, and the end of the first connecting part abuts against the end of the adapter.

[0013] Preferably, a first thread is formed on the outer side of the first connecting part, and a second thread is formed on the inner side of the second connecting part, wherein the first thread and the second thread are adapted to be connected.

[0014] Preferably, the end of the first connecting portion and the end of the adapter abut at the bottom of the first cavity.

[0015] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0016] 1. By setting up protective components to protect the fiber optic splice assembly, the impact of external factors on the fiber optic connector can be effectively reduced, extending its service life.

[0017] 2. The limiting cavity allows the adapter to abut against the inner wall of the protective component, improving the docking strength and ensuring the stability of the docking;

[0018] 3. The inner diameter of the limiting cavity is adapted to the outer diameter of the adapter, which can accurately position the adapter during the fiber optic splicing process, ensuring the splicing effect of the first fiber optic connector and the second fiber optic connector, which is conducive to the stable transmission of optical signals and reduces signal loss. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a fiber optic connector mating protection device provided by this utility model;

[0020] Figure 2 yes Figure 1 A schematic enlarged view of part A in the middle;

[0021] Figure 3 This is a schematic diagram of the protective component structure provided according to the present invention;

[0022] Figure 4 This is a schematic diagram of the disassembled protective components according to the present invention.

[0023] Figure label:

[0024] 1. Fiber optic connection assembly;

[0025] 11. First fiber optic connector; 12. Second fiber optic connector; 13. Adapter;

[0026] 2. Protective components; 2a. Limiting cavity;

[0027] 21. First protective tube; 21a. Third cavity; 211. First connecting part; 211a. First thread;

[0028] 22. Second protective tube; 22a. First cavity; 22a'. Cavity bottom; 22b. Second cavity; 221. Second connecting part; 221a. Second thread. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0030] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0031] Combination Figures 1 to 4This utility model provides a fiber optic connector mating protection device, including a fiber optic mating assembly 1 and a protection assembly 2, with the protection assembly 2 sleeved on the fiber optic mating assembly 1; the fiber optic mating assembly 1 includes a first fiber optic connector 11, a second fiber optic connector 12 and an adapter 13, the first fiber optic connector 11 and the second fiber optic connector 12 are mated through the adapter 13, a limiting cavity 2a is formed inside the protection assembly 2, the inner diameter of the limiting cavity 2a is adapted to the outer diameter of the adapter 13, and the adapter 13 abuts against the inner wall of the limiting cavity 2a. Specifically, the adapter 13 connects and aligns the first fiber optic connector 11 and the second fiber optic connector 12, enabling the two fibers to be accurately connected for optical signal transmission. The protective component 2 is fitted over the fiber optic docking assembly 1 to protect it from damage caused by the external environment. A limiting cavity 2a within the protective component 2 enhances the docking strength by restricting the movement of the adapter 13 within the protective component 2, thus strengthening the stability of the fiber optic connector docking. It also ensures precise positioning, guaranteeing that the adapter 13 is in the correct position within the protective component 2, thereby ensuring accurate docking of the first fiber optic connector 11 and the second fiber optic connector 12 and facilitating efficient optical signal transmission. Specifically, the inner diameter of the limiting cavity 2a matches the outer diameter of the adapter 13, allowing the adapter 13 to be tightly embedded within the limiting cavity 2a when the protective component 2 is fitted onto the fiber optic docking assembly 1. This tight fit prevents the adapter 13 from moving freely within the limiting cavity 2a, restricting both axial and radial displacement. Simultaneously, because the precise position of the adapter 13 is guaranteed, the connected fiber optic connector can also maintain an accurate mating position.

[0032] With this configuration, the protective component 2 protects the fiber optic splice assembly 1, effectively reducing the impact of external factors on the fiber optic connector and extending its service life. The limiting cavity 2a ensures that the adapter 13 abuts against the inner wall of the protective component 2, improving the splicing strength and ensuring the stability of the splice. In terms of splicing strength, the tight fit between the limiting cavity 2a and the adapter 13 effectively disperses the external forces applied to the fiber optic connector splice, preventing loosening or damage due to excessive local stress, thus greatly improving the strength and reliability of the entire splicing structure. Regarding precise positioning, the limiting cavity 2a ensures the positional accuracy of the adapter 13, allowing the fiber core of the fiber optic connector to remain accurately aligned, reducing losses during optical signal transmission and improving the transmission quality and stability of the optical signal. Furthermore, this precise positioning also helps improve the efficiency of fiber optic splicing and reduces the number of readjustments required due to inaccurate splicing.

[0033] The specific structure of the protective component 2 is not limited here; it can be a single protective tube fitted onto the fiber optic connector 1, as long as it forms a limiting cavity 2a within the protective component 2. Combined with... Figure 1 and Figure 3 In a preferred embodiment, the protective component 2 is configured as a two-section structure. Specifically, the protective component 2 includes a first protective tube 21 and a second protective tube 22. The first protective tube 21 is fitted onto the first fiber optic connector 11, and the second protective tube 22 is fitted onto the second fiber optic connector 12. The first protective tube 21 and the second protective tube 22 are connected. This configuration divides the protective component 2 into two parts, each fitted onto a different fiber optic connector, making installation and disassembly more convenient. Simultaneously, each part protects its corresponding fiber optic connector, improving the targetedness and effectiveness of the protection, and better addressing different usage scenarios and environments.

[0034] It should be noted that the specific method of connection between the first protective tube 21 and the second protective tube 22 is not limited here. The two ends of the first protective tube 21 and the second protective tube 22 can be directly connected, such as by bonding, snap-fitting, or abutting. Alternatively, a connection device can be provided at both ends of the first protective tube 21 and the second protective tube 22, such as... Figure 3 and Figure 4 As shown, in a preferred embodiment, one end of the first protective tube 21 has a first connecting portion 211, and one end of the second protective tube 22 has a second connecting portion 221. The outer diameter of the first connecting portion 211 matches the inner diameter of the second connecting portion 221, and the first protective tube 21 and the second protective tube 22 are connected via the first connecting portion 211 and the second connecting portion 221. Specifically, the outer diameter of the first connecting portion 211 matches the inner diameter of the second connecting portion 221. This dimensional fit allows the first protective tube 21 and the second protective tube 22 to be tightly connected together, forming an integral protective structure. This matching connection method ensures the tightness of the connection between the two protective tubes, prevents gaps in the protective structure, and avoids the influence of the external environment on the fiber optic connector. At the same time, the connection operation is relatively simple, facilitating installation and maintenance, and improving work efficiency.

[0035] Combination Figures 1 to 4 In a preferred embodiment, a first cavity 22a is formed inside the second connecting portion 221, and a limiting cavity 2a is disposed within the second protective tube 22. The first cavity 22a communicates with the limiting cavity 2a, and the inner diameter of the first cavity 22a is greater than or equal to the inner diameter of the limiting cavity 2a. The first cavity 22a, disposed inside the second connecting portion 221 and communicating with the limiting cavity 2a, provides a certain space for the fiber optic connector mating portion and also serves as a transition. (See examples 2 and 3). Figure 3As shown, the inner diameter of the first cavity 22a is greater than or equal to the inner diameter of the limiting cavity 2a. During the docking operation, after the first fiber optic connector 11 and the second fiber optic connector 12 are docked, the second protective tube 22 moves from the right side of the adapter 13 to the left. At this time, the adapter 13 first passes through the first cavity 22a and enters the limiting cavity 2a, completing the installation of the second protective tube 22. The existence of the first cavity 22a provides a buffer space for the fiber optic connector docking part, avoiding excessive compression caused by installation and other factors, and simplifying the installation operation. At the same time, in conjunction with the limiting cavity 2a, it further ensures the positional accuracy of the adapter 13, improves the stability and reliability of the docking, and is conducive to the stable transmission of optical signals.

[0036] In a preferred embodiment, a second cavity 22b is formed within the second protective tube 22. The first cavity 22a and the second cavity 22b are connected via a limiting cavity 2a, and the inner diameter of the second cavity 22b is smaller than the inner diameter of the limiting cavity 2a. The second cavity 22b, located within the second protective tube 22 and connected to the first cavity 22a via the limiting cavity 2a, provides a certain degree of limiting and protection. Specifically, the second cavity 22b, the first cavity 22a, and the limiting cavity 2a form a connected spatial structure. Within this space, the smaller inner diameter of the second cavity 22b can limit the portion of the fiber optic connector, preventing excessive movement. This arrangement further enhances the limiting effect of the protective component 2 on the fiber optic connector, making the position of the fiber optic connector within the protective component 2 more stable. Simultaneously, the different inner diameters allow for targeted protection and limiting of different parts of the fiber optic connector, improving the effectiveness and stability of the protection.

[0037] Combination Figure 1 and Figure 2 In a preferred embodiment, the length of adapter 13 is greater than or equal to the length of the limiting cavity 2a. Specifically, after the protective component 2 is installed, as... Figure 2 As shown, after the right side of the adapter 13 is fully abutted against the right side of the limiting cavity 2a, the left side of the adapter 13 can be flush with the left side of the limiting cavity 2a or located outside the limiting cavity 2a. This arrangement, with its relationship to the length of the limiting cavity 2a, ensures that the adapter 13 will not loosen or wobble within the limiting cavity 2a, further improving the docking strength and stability.

[0038] Combination Figure 2 and Figure 3In a preferred embodiment, a third cavity 21a is formed within the first protective tube 21. The inner diameter of the third cavity 21a is smaller than the outer diameter of the adapter 13, and the end of the first connecting part 211 abuts against the end of the adapter 13. The third cavity 21a, located within the first protective tube 21 and with an inner diameter smaller than the outer diameter of the adapter 13, provides a certain degree of positioning and protection for the first fiber optic connector 11. The abutment between the end of the first connecting part 211 and the end of the adapter 13 further restricts the position of the adapter 13 and enhances the docking stability. Through this arrangement, the positioning function of the third cavity 21a and the abutment function of the end of the first connecting part 211 provide dual protection for the positional stability of the first fiber optic connector 11 and the adapter 13, while also further securing the adapter 13. Furthermore, the abutment between the end of the first connecting part 211 and the adapter 13 further improves the docking accuracy, ensuring that the installation position of the first fiber optic connector 11 meets the requirements.

[0039] It should be noted that the specific connection method between the first connecting part 211 and the second connecting part 221 is not limited here; it can be a direct plug-in connection, a heat fusion connection, or a threaded connection. In a preferred embodiment, the first connecting part 211 and the second connecting part 221 are connected by a thread. Specifically, a first thread 211a is formed on the outer side of the first connecting part 211, and a second thread 221a is formed on the inner side of the second connecting part 221. The first thread 211a and the second thread 221a are adapted to each other. When the protective assembly 2 is installed, the first protective tube 21 or the second protective tube 22 is rotated to engage the first thread 211a and the second thread 221a, thereby tightly connecting the first protective tube 21 and the second protective tube 22 together. With this configuration, the threaded connection method has the advantages of a firm connection and good sealing performance compared to other connection methods. It can better prevent the influence of the external environment on the fiber optic connector, and it is also convenient for disassembly and installation. It is more convenient when the fiber optic connector needs to be maintained or replaced, improving work efficiency and the reusability of the device.

[0040] In a preferred embodiment, the end of the first connecting portion 211 abuts against the end of the adapter 13 at the bottom 22a' of the first cavity 22a. Specifically, as shown... Figure 2 As shown, the cavity bottom 22a' is located on the right side of the first cavity 22a. The position where the first connecting part 211 and the adapter 13 abut is controlled at the cavity bottom 22a' of the first cavity 22a. On the one hand, this can ensure the connection effect of the first thread 211a and the second thread 221a and improve the docking strength of the protective component 2. On the other hand, it can further control the specific position of the left end of the adapter 13 and ensure the docking accuracy.

[0041] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An optical fiber splice butt protection device, comprising: The device comprises a fiber butt joint assembly (1) and a protection assembly (2), the protection assembly (2) is sleeved on the fiber butt joint assembly (1); The fiber butt joint assembly (1) comprises a first fiber joint (11), a second fiber joint (12) and an adapter (13), the first fiber joint (11) and the second fiber joint (12) are butt jointed through the adapter (13), a limiting cavity (2a) is formed in the protection assembly (2), the inner diameter of the limiting cavity (2a) is matched with the outer diameter of the adapter (13), and the adapter (13) is in abutment with the inner wall of the limiting cavity (2a).

2. The apparatus of claim 1, wherein, The protection assembly (2) comprises a first protection tube (21) and a second protection tube (22), the first protection tube (21) is sleeved on the first fiber joint (11), and the second protection tube (22) is sleeved on the second fiber joint (12); the first protection tube (21) and the second protection tube (22) are butt jointed.

3. The apparatus of claim 2, wherein, One end of the first protection tube (21) is provided with a first connecting portion (211), one end of the second protection tube (22) is provided with a second connecting portion (221), the outer diameter of the first connecting portion (211) is matched with the inner diameter of the second connecting portion (221), and the first protection tube (21) and the second protection tube (22) are butt jointed through the first connecting portion (211) and the second connecting portion (221).

4. The apparatus of claim 3, wherein, A first cavity (22a) is formed in the inner side of the second connecting portion (221), the limiting cavity (2a) is arranged in the second protection tube (22), the first cavity (22a) is communicated with the limiting cavity (2a), and the inner diameter of the first cavity (22a) is greater than or equal to the inner diameter of the limiting cavity (2a).

5. The apparatus of claim 4, wherein, A second cavity (22b) is formed in the second protection tube (22), the first cavity (22a) and the second cavity (22b) are communicated through the limiting cavity (2a), and the inner diameter of the second cavity (22b) is smaller than the inner diameter of the limiting cavity (2a).

6. The apparatus of claim 5, wherein, The length of the adapter (13) is greater than or equal to the length of the limiting cavity (2a).

7. The apparatus of claim 6, wherein, A third cavity (21a) is formed in the first protection tube (21), the inner diameter of the third cavity (21a) is smaller than the outer diameter of the adapter (13), and the end of the first connecting portion (211) is in abutment with the end of the adapter (13).

8. The apparatus of claim 7, wherein, A first thread (211a) is formed on the outer side of the first connecting portion (211), and a second thread (221a) is formed on the inner side of the second connecting portion (221); the first thread (211a) is matched and connected with the second thread (221a).

9. The apparatus of claim 8, wherein, The end of the first connecting portion (211) is in abutment with the end of the adapter (13) at the cavity bottom (22a') of the first cavity (22a).

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