Optical fiber patch cord with reinforced joint

Abstract

The invention belongs to the technical field of optical fiber communication, and particularly relates to an optical fiber patch cord with a reinforced connector. Comprising a cable and optical fiber connectors connected to the two ends of the cable, and reinforcing assemblies are arranged at the positions, close to the optical fiber connectors, of the two ends of the cable respectively. The optical fiber patch cord has the advantages that the armor layer is arranged outside the optical fiber of the cable, the overall strength of the cable is enhanced, the reinforcing assembly is arranged at the end of the cable, and the metal reinforcing pipe is fixedly connected with the armor layer in a sleeving mode, so that the strength of the portions, close to the optical fiber connector, of the two ends of the cable can be enhanced; and cable damage caused by overlarge stress on the end part of the cable when the optical fiber connector is plugged is prevented, and the service life of the optical fiber patch cord is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of optical fiber communication, and in particular relates to an optical fiber jumper with a reinforced joint. Background Art

[0002] Fiber optic communication is a way of transmitting information using light and optical fiber, and is a type of wired communication. Light can carry information after being modulated. Fiber optic communication has the advantages of large transmission capacity and good confidentiality. Fiber optic communication has become the most important wired communication method today. In the cabinets of industrial control systems and communication data rooms, switches and servers need to be connected through a large number of fiber optic jumpers. The number of connected optical fibers is extremely large, usually arranged in wire bundles, and some have to pass through wire troughs. The connection between the end of the fiber optic jumper and the connector is easily damaged due to the force during plugging and unplugging, so it needs to be improved.

[0003] At the same time, in the cabinets of industrial control systems and communication data rooms, due to the large number of connected optical fibers, in order to be neat and beautiful, the optical fiber cables are mostly bundled with binding tapes after wiring is completed. During maintenance, it is impossible to quickly locate and determine the corresponding relationship between the optical fiber connectors at both ends of the same cable. Summary of the invention

[0004] The purpose of the present invention is to provide a fiber optic patch cord with a reinforced connector, which can solve the problem of easy damage to the connection between the line end and the connector of the existing fiber optic patch cord; at the same time, through the innovative design of the optical fiber structure and materials, a multimeter or other testing tools can be used to quickly locate the corresponding relationship between the connectors at both ends of the optical fiber cable, greatly improving the maintenance and positioning problem during the use of the optical fiber.

[0005] The technical solution of the present invention is as follows: an optical fiber jumper with a reinforced joint comprises a cable and optical fiber joints connected at both ends of the cable, and reinforcement components are respectively provided at the positions near the optical fiber joints at both ends of the cable.

[0006] The cable comprises an optical fiber core, an armor layer and an outer sheath layer, wherein the armor layer is arranged outside the optical fiber core, and the outer sheath layer is arranged outside the armor layer.

[0007] The reinforcement component includes a metal reinforcement tube and a connector tail sleeve. The metal reinforcement tube is sleeved and fixed on the outer wall of the armor layer. A protrusion facing the inner side of the tube is provided on the inner wall of the metal reinforcement tube. The connector tail sleeve is arranged on the outside of the metal reinforcement tube and the outer sheath layer. A test groove is provided at one end of the metal reinforcement tube close to the optical fiber connector, and the test groove is exposed outside the connector tail sleeve.

[0008] The raised portion on the inner wall of the metal reinforcement tube is a circular raised portion, and the metal reinforcement tube is connected to the armor layer by riveting through the raised portion.

[0009] The end of the cable is provided with a connector for connecting an optical fiber connector, the connector is inserted into the inner hole of the metal reinforcement tube, a crimping neck is provided on the outer wall of the connector, and the metal reinforcement tube is crimped with the crimping neck on the connector.

[0010] The optical fiber connector is an LC connector.

[0011] The optical fiber connector is a duplex LC connector, which includes a connector body and an optical fiber plug. A first limiting groove corresponding to the connector is provided at one end of the connector body, and two second limiting grooves corresponding to the two optical fiber plugs are provided on the other side of the connector body. The connector and the two optical fiber plugs are respectively snapped into the corresponding first limiting groove and second limiting groove. A quick-release cover is provided on the connector body, and the quick-release cover is connected to the connector body by snap-fitting. Corresponding limiting grooves are respectively provided at positions corresponding to the first limiting groove and the second limiting groove on the quick-release cover. Through this arrangement, the optical fiber connector is set as a duplex LC connector, which can be applied to an optical fiber connection line with two optical fibers in the cable. Elastic limiting convex teeth are provided on both sides of the connector body, and the quick-release cover is snap-fitted with the connector body through the limiting convex teeth. A disassembly groove is provided on the quick-release cover near the limiting convex teeth.

[0012] The beneficial effects of the present invention are as follows: 1) The fiber optic jumper of the present connector has an armor layer arranged outside the optical fiber of the cable, which enhances the overall strength of the cable. A reinforcement component is arranged at the end of the cable, and a metal reinforcement tube is used to be sleeved and fixedly connected with the armor layer, which can enhance the strength of the parts near the optical fiber connectors at both ends of the cable, prevent the cable ends from being damaged due to excessive force when the optical fiber connectors are plugged in and out, and extend the service life of the fiber optic jumper. 2) The fiber optic jumper of the present connector has a metal reinforcement tube and an armor layer, which are both made of metal materials. Therefore, by respectively setting test slots on the two metal reinforcement tubes at both ends of the cable, it can be used to detect the correspondence between the optical fiber connectors. For example, in a control system cabinet, when there are many optical fiber cables tied into bundles, or when the cables are inserted into the cable troughs, or when the cables are tangled in a mess, it is impossible to determine the correspondence between the optical fiber connectors at both ends of each cable. The correspondence between the optical fiber connectors at both ends of the optical fiber cable can be detected by using a multimeter or other test tools to detect whether the test slots are conductive. By strengthening the cable structure (adding armor and protective sheath outside the fiber core) and adding strengthening components (metal strengthening tubes) at both ends of the cable, the plugging and unplugging convenience, reliability and strength of the optical fiber are greatly improved. At the same time, by adding test slots, the corresponding relationship between the two ends of the cable can be found to assist in operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of an optical fiber jumper with a reinforced connector provided by the present invention;

[0014] Figure 2 A schematic cross-sectional view of the installation position of the reinforcement component;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the metal reinforcement tube;

[0016] Figure 4 It is a structural schematic diagram of an optical fiber connector;

[0017] Figure 5 It is a structural schematic diagram of the joint body;

[0018] Figure 6 It is a structural schematic diagram of the outer side of the quick-release cover;

[0019] Figure 7 It is a schematic diagram of the structure of the inner side of the quick-release cover.

[0020] In the figure: 1 cable, 11 optical fiber core, 12 armor layer, 13 outer sheath layer, 14 connector, 15 crimping neck, 2 optical fiber connector, 21 connector body, 22 optical fiber plug, 23 first limiting groove, 24 second limiting groove, 25 quick release cover, 26 limiting convex teeth, 27 disassembly and assembly groove, 3 reinforcement component, 31 metal reinforcement tube, 32 connector tail sleeve, 33 test groove, 34 protrusion. DETAILED DESCRIPTION

[0021] The technical scheme of the present invention is clearly and completely described below through embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a fiber optic jumper with a reinforced connector includes a cable 1 and a fiber optic connector 2, and both ends of the cable 1 are connected to the fiber optic connector 2.

[0023] like Figure 2 As shown, the cable 1 includes an optical fiber core 11 , an armor layer 12 and an outer sheath layer 13 . The armor layer 12 is arranged outside the optical fiber core 11 , and the outer sheath layer 13 is arranged outside the armor layer 12 .

[0024] Reinforcement components 3 are respectively provided at the positions near the optical fiber connector 2 at both ends of the cable 1. The reinforcement components 3 include a metal reinforcement tube 31 and a connector tail sleeve 32. The metal reinforcement tube 31 is sleeved and fixed on the outer wall of the armor layer 12. A protrusion 34 facing the inner side of the tube is provided on the inner wall of the metal reinforcement tube 31. The connector tail sleeve 32 is arranged on the outside of the outer sheath layer 13 of the metal reinforcement tube 31 and the cable 1 near the end position. A test groove 33 is provided at one end of the metal reinforcement tube 31 near the optical fiber connector 2, and the test groove 33 is exposed outside the connector tail sleeve 32.

[0025] like Figure 3 As shown, the protrusion 34 on the inner wall of the metal reinforcement tube 31 is a circular protrusion, and the metal reinforcement tube 31 is connected to the armor layer 12 by riveting through the protrusion 34. Through this arrangement, the connection between the metal reinforcement tube 31 and the armor layer 12 can be made stronger, and the two can maintain stable contact, so that the metal reinforcement tubes 31 at both ends of the cable 1 maintain electrical conductivity, so that when detecting the corresponding relationship of the connector, it is possible to accurately determine whether the optical fiber connector corresponds by testing the conductive state.

[0026] like Figure 2 As shown, the end of the cable 1 is provided with a connector 14 for connecting the optical fiber connector 2, the connector 14 is inserted into the inner hole of the metal reinforcement tube 31, and a crimping neck 15 is provided on the outer wall of the connector 14, and the metal reinforcement tube 31 is crimped with the crimping neck 15 on the connector 14. The crimping neck 15 is an annular groove arranged on the outer wall of the connector 14. When connecting, the connector 14 is first inserted into the inner hole of the metal reinforcement tube 31, and then a mold is used to apply pressure on the outer wall of the metal reinforcement tube 31 to deform the metal reinforcement tube 31 so that its inner wall fits tightly on the crimping neck 15, thereby realizing a tight and fixed connection between the metal reinforcement tube 31 and the connector 14. Through this arrangement, the connection strength between the connector 14 and the cable 1 can be further enhanced, and the service life of the optical fiber jumper can be extended. The metal reinforcement tube 31 and the connector 14 are fixedly connected by crimping, without the need for glue bonding, which can make the conductivity between the connector 14, the metal reinforcement tube 31 and the armor layer 12 better.

[0027] The optical fiber connector 2 can be a single-position LC connector or a duplex LC connector. If there is only one optical fiber in the optical fiber cable, a single-position LC connector can be used. If there are two optical fibers in the optical fiber cable, a duplex LC connector can be used. Figure 1 The optical fiber connector 2 shown in the figure is a duplex LC connector. The duplex LC connector is used as an example for description below, and the structure and principle of a single-station LC connector are the same.

[0028] like Figure 4-7As shown, the duplex LC fiber optic connector includes a connector body 21 and a fiber optic plug 22. A first limiting groove 23 corresponding to the connector 14 is provided at one end of the connector body 21, and two second limiting grooves 24 corresponding to the two fiber optic plugs 22 are provided on the other side of the connector body 21. The connector 14 and the two fiber optic plugs 22 are respectively snapped into the corresponding first limiting groove 23 and second limiting groove 24. A quick-release cover plate 25 is provided on the connector body 21. The quick-release cover plate 25 is connected to the connector body 21 by snap-fitting, and corresponding limiting grooves are respectively provided at positions on the quick-release cover plate 25 corresponding to the first limiting groove 23 and the second limiting groove 24. Through this arrangement, the optical fiber connector 2 is configured as a duplex LC connector, which can be suitable for optical fiber jumpers with two optical fibers in the cable. By providing a first limit groove 23 and a second limit groove 24 on the connector body of the optical fiber connector, the connection between the connector 14 at the cable end and the optical fiber plug 22 and the connector body 21 can be made easier. By providing a quick-release cover plate 25, the installation and removal of the cover plate can be very convenient, which facilitates the rapid replacement of the upper and lower positions of the two optical fiber plugs 22 on the optical fiber connector 2, thereby changing the corresponding relationship between the optical fiber plugs 22 at both ends of the optical fiber jumper.

[0029] By providing a first limit groove and a second limit groove on the connector body of the optical fiber connector, the connection between the connector head and the optical fiber plug at the end of the cable and the connector body can be made easier. By providing a quick-release cover plate, the installation and removal of the cover plate can be very convenient, and it is easy to quickly replace the upper and lower positions of the two optical fiber plugs on the optical fiber connector, thereby changing the corresponding relationship between the optical fiber plugs at both ends of the optical fiber connection line.

[0030] like Figure 5 As shown, elastic limiting protruding teeth 26 are provided on both sides of the joint body 21. Figure 6-7 As shown, the quick-release cover plate 25 is buckled and connected with the joint body 21 through the limiting protruding teeth 26, and a disassembly groove 27 is provided on the quick-release cover plate 25 near the limiting protruding teeth 26. Through this arrangement, the quick-release cover plate 25 can be more easily disassembled.

[0031] The fiber optic patch cord with the reinforced connector is usually used for communication connection between the switch and the server in the cabinet of the industrial control system or data room. Due to the consideration of cabinet space and maintainability, these fiber optic patch cords are bundled with cable ties. When the line is inspected and repaired, the staff has to plug and unplug a large number of fiber optic connectors. When the space is small, it is likely to pull the fiber optic cable to unplug the fiber optic connector. This operation can easily break the optical fiber. The present invention can enhance the strength of the fiber optic cable by arranging an armor layer outside the optical fiber core to prevent it from being broken. By arranging a reinforcement component at both ends of the optical fiber cable, a metal reinforcement tube is used to rivet and fix the connection with the armor layer, so that the strength of the cable end can be enhanced, the damage of the cable end can be prevented, and the tensile strength of the cable can be further enhanced. At the same time, the test slot exposed to the outside of the connector tail sleeve arranged on the metal reinforcement tube can also be used to find the corresponding relationship between the fiber optic connectors at both ends of the cable from a large number of fiber optic patch cords, so as to facilitate operation during inspection.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that numerous changes, modifications, substitutions and alterations may be made to the embodiments without departing from the spirit and scope of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical fiber jumper with a reinforced connector, characterized in that: It comprises a cable and optical fiber connectors connected at both ends of the cable, and reinforcement components are respectively arranged at positions near the optical fiber connectors at both ends of the cable.

2. The optical fiber jumper with a reinforced connector as claimed in claim 1, characterized in that: The cable comprises an optical fiber core, an armor layer and an outer sheath layer, wherein the armor layer is arranged outside the optical fiber core, and the outer sheath layer is arranged outside the armor layer.

3. The optical fiber jumper with a reinforced connector as claimed in claim 2, characterized in that: The reinforcement component includes a metal reinforcement tube and a connector tail sleeve. The metal reinforcement tube is sleeved and fixed on the outer wall of the armor layer. A protrusion facing the inner side of the tube is provided on the inner wall of the metal reinforcement tube. The connector tail sleeve is arranged on the outside of the metal reinforcement tube and the outer sheath layer. A test groove is provided at one end of the metal reinforcement tube close to the optical fiber connector, and the test groove is exposed outside the connector tail sleeve.

4. The optical fiber jumper with a reinforced connector as claimed in claim 3, characterized in that: The raised portion on the inner wall of the metal reinforcement tube is a circular raised portion, and the metal reinforcement tube is connected to the armor layer by riveting through the raised portion.

5. The optical fiber jumper with a reinforced connector according to claim 1, characterized in that: The end of the cable is provided with a connector for connecting an optical fiber connector, the connector is inserted into the inner hole of the metal reinforcement tube, a crimping neck is provided on the outer wall of the connector, and the metal reinforcement tube is crimped with the crimping neck on the connector.

6. The optical fiber jumper with a reinforced connector according to claim 1, characterized in that: The optical fiber connector is an LC connector.

7. The optical fiber jumper with a reinforced connector according to claim 6, characterized in that: The fiber optic connector is a duplex LC connector, which includes a connector body and a fiber optic plug. A first limiting groove corresponding to the connector is provided at one end of the connector body, and two second limiting grooves corresponding to the two fiber optic plugs are provided on the other side of the connector body. The connector and the two fiber optic plugs are respectively snapped into the corresponding first limiting groove and second limiting groove. A quick-release cover is provided on the connector body, and the quick-release cover is connected to the connector body by snap-fitting. Corresponding limiting grooves are respectively provided at positions corresponding to the first limiting groove and the second limiting groove.

8. The optical fiber jumper with a reinforced connector as claimed in claim 7, characterized in that: Both sides of the joint body are provided with elastic limiting convex teeth, the quick-release cover plate is buckled and connected with the joint body through the limiting convex teeth, and a disassembly groove is provided on the quick-release cover plate near the limiting convex teeth.

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