Optical fiber patch cord capable of preventing optical cable from falling off

Abstract

An optical fiber patch cord capable of preventing an optical cable from falling off relates to the technical field of optical fiber patch cords, and adopts the technical scheme that the optical fiber patch cord comprises a connector and an optical cable, the connector is provided with a crimping head, the crimping head and the optical cable are inserted into a crimping ring, a cushion layer is arranged between the crimping ring and the crimping head, and the cushion layer is connected with the optical cable. A convex ring is arranged on the outer wall of the end, located in the crimping ring, of the optical cable, a necking opening is further formed in the end, away from the crimping head, of the convex ring of the crimping ring, and the inner diameter of the necking opening is smaller than the outer diameter of the convex ring. The heat shrink tube is additionally arranged on the optical cable, so that the cushion layer and the heat shrink tube are locked when the crimping ring crimps, the tensile capacity of the optical cable is enhanced, and the optical cable is effectively prevented from being separated from the connector.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber jumpers, in particular to an optical fiber jumper that prevents an optical cable from falling out. Background Art

[0002] In existing AOC fiber optic patch cords, after the optical cable and the crimping ring are crimped, the optical cable can easily fall out of the crimping ring due to the influence of the optical cable material, resulting in defective AOC fiber optic patch cords due to poor tension during the manufacturing process. In addition, during the later use of the product, it is affected by high temperature, high humidity, low temperature and other environmental factors, and the optical cable and the crimping ring of the AOC fiber optic patch cord product may fall off, reducing the service life of the product. Utility Model Content

[0003] In view of the problem in the existing technical solutions that the optical cable may fall out of the crimping ring due to the influence of factors such as the cable material and environmental conditions, the utility model provides a fiber optic jumper that prevents the optical cable from falling out.

[0004] The utility model provides the following technical solution: an optical fiber jumper that prevents an optical cable from falling out, comprising a connector and an optical cable, wherein the connector is provided with a crimping joint, the crimping joint and the optical cable are both plugged into a crimping ring, and a cushion layer is provided between the crimping ring and the crimping joint, the cushion layer is connected to the optical cable, a convex ring is provided on the outer wall of one end of the optical cable in the crimping ring, and the crimping ring is further provided with a necking at the end of the convex ring away from the crimping joint, and the inner diameter of the necking is smaller than the outer diameter of the convex ring.

[0005] Preferably, the cushion layer is a Kevlar wire protective layer provided in the optical cable.

[0006] Preferably, the outer diameters of the optical cable, the convex ring, and the crimping joint increase in sequence, and the inner wall of the crimping ring is clearance-fitted with the optical cable, the convex ring, and the crimping joint.

[0007] Preferably, the convex ring is a heat shrink tube, and an adhesive layer is provided between the heat shrink tube and the optical cable.

[0008] Preferably, the heat shrink tube is provided with a chamfer at one end facing away from the compression joint.

[0009] The beneficial effect of the utility model is that a heat shrink tube is added to the optical cable, so that the crimping ring locks the cushion layer and the heat shrink tube at the same time during crimping, thereby enhancing the tensile strength of the optical cable and effectively preventing the optical cable from falling out of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of an embodiment of a fiber optic patch cord.

[0011] Reference numerals: 10, connector; 11, crimping head; 20, optical cable; 21, cushion layer; 30, crimping ring; 31, necking; 40, convex ring. DETAILED DESCRIPTION

[0012] The following is a more detailed description of the embodiments of the present invention with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the invention after studying this specification. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0013] The utility model provides Figure 1 The optical fiber jumper shown in the figure, which prevents the optical cable from falling out, includes a connector 10 , an optical cable 20 , a crimping ring 30 and a protruding ring 40 .

[0014] The connector 10 is provided with a crimping head 11. The crimping head 11 and the optical cable 20 are both inserted into a crimping ring 30. A cushioning layer 21 is provided between the crimping ring 30 and the crimping head 11, and the cushioning layer 21 is connected to the optical cable 20. The cushioning layer 21 is generally a Kevlar protective layer provided within the optical cable 20. The Kevlar protective layer is exposed at one end of the optical cable 20 and is filled in the gap between the crimping ring 30 and the crimping head 11. When the three are pressed tightly, the optical cable 20 is fixed by friction to prevent it from falling out.

[0015] A protruding ring 40 is provided on the outer wall of one end of the optical cable 20 within the crimping ring 30. Correspondingly, a constriction 31 is provided on the end of the protruding ring 40 facing away from the crimping head 11. The inner diameter of the constriction 31 is smaller than the outer diameter of the protruding ring 40. The outer diameters of the optical cable 20, the protruding ring 40, and the crimping head 11 increase in sequence. The inner wall of the crimping ring 30 is loosely fitted with the optical cable 20, the protruding ring 40, and the crimping head 11. The crimping ring 30 forms a locking notch at the constriction 31 for locking the protruding ring 40, thereby enhancing the tensile strength of the optical cable and further preventing the cable from falling out. In this embodiment, the convex ring 40 is a heat shrink tube, and an adhesive layer is provided between the heat shrink tube 40 and the optical cable 20. A hot air gun can be used to fix the heat shrink tube 40 to the outer wall of the optical cable to ensure that the adhesive layer bonds the heat shrink tube 40 and the optical cable 20. In other embodiments, the convex ring can also be in the form of a metal sleeve, curing glue, etc. to form a protruding structure on the optical cable.

[0016] Preferably, the heat shrink tube 40 is provided with a chamfer at one end facing away from the crimping joint 11 .

[0017] The above is a description of one or more embodiments of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A fiber optic patch cord for preventing an optical cable from falling out, comprising a connector and an optical cable, wherein the connector is provided with a crimping head, the crimping head and the optical cable are both plugged into a crimping ring, and a cushion layer is provided between the crimping ring and the crimping head, the cushion layer being connected to the optical cable, characterized in that: A convex ring is provided on the outer wall of one end of the optical cable in the crimping ring. The crimping ring is further provided with a necking at the end of the convex ring away from the crimping head. The inner diameter of the necking is smaller than the outer diameter of the convex ring.

2. The optical fiber jumper for preventing the optical cable from falling out according to claim 1, characterized in that: The cushion layer is a Kevlar wire protective layer arranged in the optical cable.

3. The optical fiber jumper for preventing an optical cable from falling out according to claim 1, characterized in that: The outer diameters of the optical cable, the convex ring and the crimping joint increase in sequence, and the inner wall of the crimping ring is in clearance fit with the optical cable, the convex ring and the crimping joint.

4. The optical fiber jumper for preventing an optical cable from falling out according to claim 1, characterized in that: The convex ring is a heat shrink tube, and an adhesive layer is provided between the heat shrink tube and the optical cable.

5. The optical fiber jumper for preventing the optical cable from falling out according to claim 4, characterized in that: The heat shrink tube is provided with a chamfer at one end away from the compression joint.

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