Adapter

Abstract

The utility model provides an adapter which is connected between a laser and an optical fiber connector, is used for installing an optical fiber cable, and comprises a metal handle which is provided with a channel penetrating through two ends of the metal handle, two ports of the channel are provided with butt joint insertion cores in a penetrating manner, the optical fiber cable is arranged between the two butt joint insertion cores in a penetrating manner, and the end part of the optical fiber cable is flush with the end parts of the butt joint insertion cores; the inner frame sleeve is provided with two mounting cavities which are communicated with each other, the metal handle is arranged between the two mounting cavities in a sliding and penetrating manner, and the two butt joint insertion cores protrude out of ports of the two mounting cavities respectively so as to be in butt joint between the laser and the optical fiber connector; and the threaded sleeve is rotationally arranged in the inner frame sleeve and is used for being in threaded connection with the optical fiber connector. The two butt joint insertion cores are directly connected between the LD and the FC connector in a butt joint mode, the inner frame sleeve is fixedly connected to the FC connector through the threaded sleeve, and compared with connection through a jumper wire, optical power loss is reduced, the space utilization rate is effectively improved, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical path transmission, in particular to an adapter. Background Art

[0002] In current optoelectronic conversion transceiver devices, if the optical signal emitted by an LD (laser) is to be transmitted through an FC connector, an FC to SUS fiber optic jumper needs to be made. The SUS end is connected to the LD chip by means of coupling welding, and the FC end is connected to the FC connector interface to achieve optical signal transmission. However, having an extra jumper increases the number of optical path transfers, thereby increasing optical power loss. Moreover, having an extra jumper means occupying space, which is not conducive to optical path design and component layout. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the utility model provides an adapter, which solves the problems in the prior art that transmitting optical signals through jumpers not only increases optical power loss but also is not conducive to optical path design and component layout.

[0004] According to the embodiments of the utility model, the following technical solutions are adopted:

[0005] An adapter is connected between a laser and an optical fiber connector and is used for installing an optical fiber line, and includes:

[0006] A metal handle has channels running through both ends thereof, and butt plugs are inserted through both end ports of the channels. The optical fiber line is threaded between the two butt plugs, and the end of the optical fiber line is flush with the end of the butt plug.

[0007] An inner frame sleeve has two mutually communicating installation cavities. The metal handle slidably passes through one of the installation cavities, and the two butt plugs respectively protrude from the ports of the two installation cavities to be butted between the laser and the optical fiber connector; and

[0008] A threaded sleeve is rotatably arranged on the inner frame sleeve and is used for threadedly connecting with the optical fiber connector.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] With the cooperation of the metal handle and the two butt plugs, the length between the metal handle and the two butt plugs can be controlled, so that it is not necessary to customize an insert structure with a specified length, greatly reducing the cost. Moreover, when transmitting the optical signal emitted by the LD through the FC connector, the two butt plugs are directly butted between the LD and the FC connector, and the inner frame sleeve is fixedly connected to the FC connector through the threaded sleeve. Compared with connecting through a jumper, not only is the optical power loss reduced, but the space utilization rate is effectively improved, and the cost is saved.

[0011] Preferably, it further includes:

[0012] A stopper, which is inserted into one of the installation cavities and sleeved on the metal handle;

[0013] A spring, which is sleeved on the metal handle. A boss is provided at one end of the metal handle away from the stopper, and the spring abuts between the boss and the stopper.

[0014] Preferably, an external thread is provided on the circumferential side of the stopper, and the stopper is threadedly connected to the inner side of the inner frame sleeve through the external thread.

[0015] Preferably, a limiting portion is provided at the end of the stopper, and the limiting portion abuts against the end of the inner frame sleeve.

[0016] Preferably, a stepped surface is provided on the circumferential side of the limiting portion.

[0017] Preferably, a clamping groove is provided on the boss, and a clamping block is provided in the installation cavity corresponding to the boss, and the clamping groove is clamped on the clamping block.

[0018] Preferably, a connecting sleeve is provided at the port of the installation cavity corresponding to the metal handle, and the connecting sleeve is connected to the corresponding docking ferrule.

[0019] Preferably, an exhaust hole is provided on the metal handle, and the exhaust hole is located between the two docking ferrules.

[0020] Preferably, the threaded sleeve is provided with an anti-slip portion.

[0021] Preferably, a bevel surface is provided at the port of the threaded sleeve, and the bevel surface inclines outward. Description of the Drawings

[0022] Figure 1 It is a schematic perspective structure diagram of the adapter in the embodiment of the present invention.

[0023] Figure 2 It is a schematic cross-sectional structure diagram of the adapter in the embodiment of the present invention.

[0024] Figure 3 It is a schematic cross-sectional structure diagram of the inner frame sleeve in the embodiment of the present invention.

[0025] In the above-mentioned drawings: 1. Inner frame sleeve; 101. Clamping block; 102. Installation cavity; 2. Threaded sleeve; 201. Anti-slip portion; 202. Bevel surface; 3. Metal handle; 301. Exhaust hole; 302. Boss; 303. Clamping groove; 4. Docking ferrule; 5. Optical fiber cable; 6. Spring; 7. Connecting sleeve; 8. Stopper; 801. Limiting portion; 802. Stepped surface. Detailed Embodiment

[0026] The technical solutions in the present invention will be further described below with reference to the drawings and embodiments.

[0027] As Figures 1 to 3 shown, an embodiment of the present utility model provides an adapter, which is connected between a laser and an optical fiber connector and is used for installing an optical fiber line 5. The adapter includes:

[0028] A metal handle 3 has channels penetrating through both ends thereof. Docking ferrules 4 are inserted through both ports of the channels. The optical fiber line 5 is threaded between the two docking ferrules 4, and the end of the optical fiber line 5 is flush with the end of the docking ferrule 4;

[0029] An inner frame sleeve 1 has two mutually communicating mounting cavities 102. The metal handle 3 is slidably inserted through one of the mounting cavities 102, and the two docking ferrules 4 respectively protrude from the ports of the two mounting cavities 102 to be docked between the laser and the optical fiber connector; and

[0030] A threaded sleeve 2 is rotatably arranged on the inner frame sleeve 1 and is used for threadedly connecting with the optical fiber connector.

[0031] In the embodiment of the present utility model, the length of the current standard ferrule structure is 10.5 mm, which cannot reach the required length of 17.8 mm. Therefore, under the action of the metal handle 3, the standard ferrule structure can be cut into two docking ferrules 4, and the two docking ferrules 4 are respectively installed at both ends of the metal handle 3 in an interference fit manner and pressed to the specified length. Then, the optical fiber line 5 is threaded through the two docking ferrules 4, bonded with 353 glue and polished at the end face to process into a ferrule structure with a fixed length, so that there is no need to customize a ferrule structure with a specified length, greatly reducing the cost.

[0032] Secondly, under the cooperation of the inner frame sleeve 1 and the metal handle 3, the metal handle 3 can slide in one of the mounting cavities 102. Taking Figure 3 as an example, when the metal handle 3 is located in the left mounting cavity 102, the docking ferrule 4 on the left side of the metal handle 3 is connected to the LD (laser), and then under the action of the threaded sleeve 2, it is installed on the FC connector (optical fiber connector) in an internal thread manner, so that the optical fiber line 5 and the two docking ferrules 4 in the metal handle 3 are docked between the laser and the optical fiber connector, realizing quick plugging and unplugging docking and completing the rapid transmission of optical signals. Compared with a jumper wire, it not only reduces the optical power loss, but also effectively improves the space utilization rate and saves costs.

[0033] Based on the above solution, as Figure 2 shown, it further includes:

[0034] A stopper 8 is inserted through one of the mounting cavities 102 and sleeved on the metal handle 3;

[0035] A spring 6 is sleeved on the metal handle 3. A boss 302 is provided at one end of the metal handle 3 away from the stopper 8, and the spring 6 abuts between the boss 302 and the stopper 8.

[0036] When the metal handle 3 is inserted into the installation cavity 102 of the inner frame sleeve 1, the metal handle 3 is limited to the left installation cavity 102 under the action of the boss 302. The spring 6 is sleeved on the metal handle 3 and the stopper 8 is installed in this installation cavity 102, so that the spring 6 is limited between the boss 302 and the stopper 8. When the right docking ferrule 4 moves during docking, the distance between the boss 302 of the metal handle 3 and the stopper 8 is reduced, so that the spring 6 is compressed, and thus the docking ferrule 4 is subjected to the extrusion force of the spring 6, ensuring the stability when the docking ferrule 4 is docked with the fiber optic connector.

[0037] Specifically, the outer thread is provided on the circumferential side of the stopper 8, and the stopper 8 is threadedly connected to the inner side of the inner frame sleeve 1 through the outer thread; with the cooperation of the inner thread and the outer thread, the quick installation of the stopper 8 can be realized, and under the action of the continuously screwed-in stopper 8, the spring 6 can be compressed to a specified compression length. Moreover, the end of the stopper 8 is provided with a limiting portion 801, and the limiting portion 801 abuts against the end of the inner frame sleeve 1. Under the action of the limiting portion 801, the stopper 8 can be limited, and when the limiting portion 801 abuts against the end of the inner frame sleeve 1, the rotation can be stopped. And, a stepped surface 802 is provided on the circumferential side of the limiting portion 801, which is convenient for applying force and positioning during screwing in.

[0038] Specifically, as Figure 3 shown, the boss 302 is provided with a clamping groove 303, and a clamping block 101 is arranged in the installation cavity 102 corresponding to the boss 302; the clamping groove 303 is clamped to the clamping block 101; under the action of the clamping groove 303 and the clamping block 101, the metal handle 3 can be positioned and installed to prevent the metal handle 3 and the docking ferrule 4 from rotating.

[0039] Specifically, as Figure 2 shown, a connecting sleeve 7 is provided at the port of the installation cavity 102 corresponding to the metal handle 3, and the connecting sleeve 7 is connected to the corresponding docking ferrule 4; the connecting sleeve 7 and the corresponding docking ferrule 4 are in clearance fit and fixed by glue, and the outer circular part retains a right angle for welding the LD laser chip, ensuring the stability of the connection between the docking ferrule 4 and the LD end. After welding, the adapter and the LD end form an integral body, which is convenient for later plugging and unplugging installation.

[0040] Specifically, as Figure 3 shown, the metal handle 3 is provided with an exhaust hole 301, and the exhaust hole 301 is located between the two docking ferrules 4; under the action of the exhaust hole 301, when the docking ferrule 4 is press-fitted onto the metal handle 3, the internal air can be discharged through the exhaust hole 301 during press-fitting, ensuring the press-fitting efficiency.

[0041] As Figure 1As shown, the threaded sleeve 2 is provided with an anti-slip portion 201. When docking with the fiber optic connector, the whole can be docked in the fiber optic connector by rotating the threaded sleeve 2. The anti-slip portion 201 can increase the friction with the palm, facilitating adjustment. Moreover, a bevel 202 is provided at the port of the threaded sleeve 2, and the bevel 202 is inclined outward, facilitating the positioning and docking of the threaded sleeve 2 with the fiber optic connector.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An adapter is connected between a laser and an optical fiber connector and is used for installing an optical fiber line (5), characterized in that Comprising: A metal handle (3) having channels passing through both ends thereof, with docking cores (4) inserted through both ports of the channels. An optical fiber line (5) is disposed between the two docking cores (4), and the end of the optical fiber line (5) is flush with the end of the docking core (4). An inner frame sleeve (1) having two mutually communicating mounting cavities (102). The metal handle (3) is slidably inserted through one of the mounting cavities (102), and the two docking cores (4) respectively protrude from the ports of the two mounting cavities (102) to be docked between the laser and the optical fiber connector. And A threaded sleeve (2) rotatably disposed on the inner frame sleeve (1) for threadedly connecting with the optical fiber connector.

2. An adapter according to claim 1, characterized in that Further comprising: A stopper (8) inserted through one of the mounting cavities (102) and sleeved on the metal handle (3). A spring (6) sleeved on the metal handle (3). A boss (302) is provided at one end of the metal handle (3) away from the stopper (8), and the spring (6) abuts between the boss (302) and the stopper (8).

3. An adapter according to claim 2, characterized in that, External threads are provided on the circumferential side of the stopper (8), and the stopper (8) is threadedly connected to the inner side of the inner frame sleeve (1) through the external threads.

4. An adapter according to claim 2, wherein A limiting portion (801) is provided at the end of the stopper (8), and the limiting portion (801) abuts against the end of the inner frame sleeve (1).

5. An adapter according to claim 4, wherein A stepped surface (802) is provided on the circumferential side of the limiting portion (801).

6. An adapter according to any one of claims 2-5, characterized in that, A clamping groove (303) is provided on the boss (302), and a clamping block (101) is provided in the mounting cavity (102) corresponding to the boss (302). The clamping groove (303) is clamped to the clamping block (101).

7. An adapter according to claim 1, characterized in that, A connecting sleeve (7) is provided at the port of the mounting cavity (102) corresponding to the metal handle (3), and the connecting sleeve (7) is connected to the corresponding docking core (4).

8. An adapter according to claim 1, characterized in that, An exhaust hole (301) is provided on the metal handle (3), and the exhaust hole (301) is located between the two docking cores (4).

9. An adapter according to claim 1, characterized in that, The threaded sleeve (2) is provided with an anti-slip portion (201).

10. An adapter according to claim 9, characterized in that, An inclined surface (202) is provided at the port of the threaded sleeve (2), and the inclined surface (202) inclines outwards.

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