An inspection tool for preventing fiber ferrule contact shrinkage

Abstract

The utility model belongs to the technical field of optical fiber wire harness of aerospace, concretely is a kind of inspection tool for preventing optical fiber contact pin contact piece needle shrink, including top rod, sleeve, spring and top hat, top rod is arranged in sleeve, both ends of top rod are located in the outside of sleeve, and the end of top rod is the top hat of silicon rubber material, and the top hat is in contact with optical fiber contact pin contact piece, and the other end of top rod is force end;Spring is sleeved on top rod, between top hat and sleeve, top rod can be relatively moved along the axial direction relative to sleeve and spring, and both ends of spring are respectively in contact with top hat and sleeve when optical fiber contact pin contact piece needle shrinks.The utility model can effectively guarantee that optical fiber contact pin contact piece has no needle shrink problem, and the quality of optical fiber wire harness is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber harness technology in aerospace, specifically a test tool for preventing the retraction of optical fiber ferrule contacts. Background Technology

[0002] In actual production, fiber optic bundles, consisting of fiber optic ferrules and optical cables, often experience pin retraction issues because the fiber optic ferrules are not positioned correctly within the connector. This leads to the connector's claws failing to lock the ferrules in place, ultimately causing the ferrules to retract. This pin retraction problem poses a risk to the signal transmission of the fiber optic bundle. Utility Model Content

[0003] To address the issue of fiber optic ferrule contact pin shrinkage, this invention aims to provide an inspection tool to prevent such shrinkage. This tool ensures the splicing quality of fiber optic bundles and eliminates product quality problems caused by pin shrinkage.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] This utility model includes a push rod, a sleeve, a spring, and a top cap. The push rod passes through the sleeve, with both ends of the push rod located outside the sleeve. One end of the push rod is a top cap made of silicone rubber, which contacts the fiber optic ferrule contact. The other end of the push rod is a force-applying end. The spring is sleeved on the push rod and located between the top cap and the sleeve. The push rod can move axially relative to the sleeve and the spring. When the fiber optic ferrule contact is retracted, both ends of the spring abut against the top cap and the sleeve, respectively.

[0006] Wherein: the size of the top cap is larger than the size of other parts of the top rod.

[0007] The top cap is covered with non-woven fabric.

[0008] The axial center lines of the push rod and the sleeve are collinear.

[0009] The sleeve is a hollow structure with openings at both ends, and the push rod is fitted with the inner cavity of the sleeve.

[0010] The advantages and positive effects of this utility model are as follows:

[0011] 1. This utility model can effectively ensure that there is no shrinkage problem in the fiber optic ferrule contact, thus guaranteeing the quality of the fiber optic bundle.

[0012] 2. This utility model adopts a spring structure, which can effectively ensure the contact force with the fiber optic ferrule contact and prevent damage to the fiber optic ferrule contact.

[0013] 3. The contact part of this utility model adopts a non-woven fabric structure with a silicone rubber top cap. The silicone rubber top cap can buffer the fiber optic ferrule contact during the testing process, and the non-woven fabric can ensure the cleanliness of the mating surface of the fiber optic ferrule contact and avoid wear on the end face of the fiber optic ferrule contact after testing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 A schematic diagram of the structure of this utility model and connector when no needle shrinkage occurs;

[0016] Figure 3 This is a schematic diagram of the structure of the shrink needle of this utility model;

[0017] Wherein: 1 is the top rod, 2 is the sleeve, 3 is the spring, 4 is the top cap, 5 is the non-woven fabric, 6 is the connector, 7 is the fiber optic ferrule contact, and 8 is the claw. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] like Figure 1 As shown, this utility model includes a top rod 1, a sleeve 2, a spring 3, and a top cap 4. The top rod 1 is inserted into the sleeve 2, and both ends of the top rod 1 are located outside the sleeve 2. One end of the top rod 1 is a top cap 4 made of silicone rubber, which contacts the fiber optic ferrule contact 7. The other end of the top rod 1 is the force-applying end. The spring 3 is sleeved on the top rod 1 and located between the top cap 4 and the sleeve 2. The top rod 1 can move relative to the sleeve 2 and the spring 3 axially. When the fiber optic ferrule contact 7 is retracted, both ends of the spring 3 abut against the top cap 4 and the sleeve 2, respectively.

[0020] In this embodiment, the push rod 1 is a cylinder with an arc-shaped end face at the force application end. The push rod 1 is used to fix the sleeve 2 and the spring 3.

[0021] In this embodiment, the sleeve 2 is a hollow cylindrical structure with open ends. The push rod 1 and the inner cavity of the sleeve 2 are in transition fit. The sleeve 2 is used to apply pressure to the spring 3 to realize the forward movement of the entire inspection tool.

[0022] In this embodiment, the spring 3 can move relative to the top rod 1. The spring 3 is used to buffer the contact force between the inspection tool and the fiber optic pin contact 7, ensuring that the force applied by the inspection tool is within the required range.

[0023] In this embodiment, the top cap 4 is larger than the dimensions of other parts of the top rod 1. The silicone rubber material is elastic, ensuring that the ceramic end face of the fiber optic ferrule contact 7 will not be damaged during use. Non-woven fabric 5 is adhered to the top cap 4 to ensure that the end face of the fiber optic ferrule contact 7 is not worn during inspection.

[0024] In this embodiment, the axial center lines of the push rod 1 and the sleeve 2 are collinear.

[0025] During inspection, if the fiber optic ferrule contact 7 is positioned correctly in the connector 6, the latches 8 inside the connector 6 will lock the fiber optic ferrule contact 7 in place. The top cap 4 and non-woven fabric 5 in the inspection tool contact the ceramic end face of the fiber optic ferrule contact 7, applying a pushing force. Because the latches 8 lock the fiber optic ferrule contact 7, the fiber optic ferrule contact 7 does not retract. Figure 2 As shown.

[0026] When the fiber optic ferrule contact 7 is not delivered to the correct position of connector 6, or as... Figure 3 As shown, there is no clamp 8 at the position of the fiber optic ferrule contact 7 corresponding to connector 6. The top cap 4 and non-woven fabric 5 in the inspection tool contact the ceramic end face of the fiber optic ferrule contact 7. Pressure is applied to the spring 3 through the sleeve 2, and the spring 3 is compressed. Then, a pushing force is applied to the fiber optic ferrule contact 7 through the top cap 4 and non-woven fabric 5. Since there is no clamp 8 to lock the fiber optic ferrule contact 7, the fiber optic ferrule contact 7 is found to be retracted.

Claims

1. An inspection tool for preventing fiber optic ferrule contact pin retraction, characterized in that: The device includes a push rod (1), a sleeve (2), a spring (3), and a cap (4). The push rod (1) is inserted inside the sleeve (2), and both ends of the push rod (1) are located outside the sleeve (2). One end of the push rod (1) is a cap (4) made of silicone rubber, which contacts the fiber optic ferrule contact (7). The other end of the push rod (1) is the force-applying end. The spring (3) is sleeved on the push rod (1) and located between the cap (4) and the sleeve (2). The push rod (1) can move relative to the sleeve (2) and the spring (3) axially. When the fiber optic ferrule contact (7) retracts, both ends of the spring (3) abut against the cap (4) and the sleeve (2), respectively.

2. The inspection tool for preventing fiber optic ferrule contact pin retraction according to claim 1, characterized in that: The size of the top cap (4) is larger than the size of other parts of the top rod (1).

3. The inspection tool for preventing fiber optic ferrule contact pin retraction according to claim 1, characterized in that: The top cap (4) is covered with non-woven fabric (5).

4. The inspection tool for preventing fiber optic ferrule contact pin retraction according to claim 1, characterized in that: The axial center lines of the push rod (1) and the sleeve (2) are collinear.

5. The inspection tool for preventing fiber optic ferrule contact pin retraction according to claim 1, characterized in that: The sleeve (2) is a hollow structure with openings at both ends, and the top rod (1) and the inner cavity of the sleeve (2) are in transition fit.

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