Optical fiber adapter

Abstract

The utility model mainly relates to the field of optical fiber connectors, in particular to an optical fiber adapter which comprises a base, a first protruding portion is arranged in the middle of the base, and a first insertion opening is formed in the first protruding portion in the axial direction. The seat tube is detachably arranged at the front end of the base, and the seat tube is used for being matched with an optical fiber connector; the fixing ring is detachably arranged on the base; the whole fixing ring is annular, a locking column is arranged on the inner side of the fixing ring, and an extrusion part is arranged on the fixing ring; a second protruding part is arranged on the outer side of the fixing ring, and a second insertion opening is formed in the second protruding part in the axial direction; when the fixing ring is located at the locking position, at least one part of the second insertion opening coincides with the first insertion opening. When the fixing ring is located at the locking position, the inserting piece can be inserted into the second inserting opening and the first inserting opening at the same time and removed.

Description

Technical Field

[0001] The utility model mainly relates to the field of optical fiber connectors, in particular to an optical fiber adapter. Background Art

[0002] Existing waterproof optical fiber connectors have various specifications, which cannot be unified, and the corresponding adapters can only correspond one to one. When waterproof optical fiber adapters are used with connectors of different specifications, the original optical fiber adapters need to be removed, which is inconvenient to use. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an optical fiber adapter, which is implemented by the following technical solutions:

[0004] An optical fiber adapter comprises a base, the base is cylindrical and has a front end and a rear end; the interior of the base is used for optical fiber docking; the front outer side wall of the base is provided with a bayonet extending inward from the front end surface; the edge of the base is provided with a notch; the middle part of the base is provided with a first protrusion, and the first protrusion is provided with a first insertion port along the axial direction;

[0005] A seat tube is detachably arranged at the front end of the base, and is used to match the optical fiber connector; the seat tube is cylindrical and has a flange that can be mounted on the front end surface of the base, and the flange is provided with a positioning protrusion inserted into the notch;

[0006] A fixing ring is detachably arranged on the base; the fixing ring is annular in shape, a locking column is arranged on the inner side, and an extrusion portion is arranged on the fixing ring; a second protrusion is arranged on the outer side of the fixing ring, and a second insertion port is arranged on the second protrusion along the axial direction; the locking column cooperates with the bayonet to fix the fixing ring to the base, and the seat tube is fixed to the base through the cooperation of the extrusion portion and the flange, and when the fixing ring is in the locking position, at least a part of the second insertion port overlaps with the first insertion port;

[0007] An inserter, when the fixing ring is located at the locking position, the inserter can be inserted into the second insertion port and the first insertion port and removed at the same time.

[0008] Preferably, an insertion port protrusion is provided in the second insertion port or the first insertion port, and an insertion port snap-in is provided on the surface of the insert; when the insert is inserted into the second insertion port and the first insertion port at the same time, the insertion port protrusion and the insertion port snap-in cooperate to limit the insert.

[0009] Preferably, the insertion port bayonet is configured to have an abutment portion at the front end, and a limiting boss is provided at the rear of the abutment portion; the insertion port protrusion is provided on the second insertion port;

[0010] When the insert is inserted into the second insert opening and the first insert opening at the same time, the insert opening protrusion is located behind the limiting boss, and the insert is limited by the limiting boss;

[0011] When the insert is pulled out, the insertion port protrusion is located between the abutment portion and the limiting boss, and the abutment portion abuts against the insertion port protrusion. The abutment portion cooperates with the insertion port protrusion to prevent the insert from escaping from the second insertion port, and the limiting boss cooperates with the insertion port protrusion to keep the insert in the pulled-out position.

[0012] Preferably, the flange is provided with an escape portion, and when the seat tube is located on the base, the escape portion allows the bayonet to be exposed from the front end of the base.

[0013] Preferably, it also includes a rear fixing ring;

[0014] The rear surface of the base is provided with threads, and the rear fixing ring is configured on the base through the threads. The rear fixing ring can cooperate with the first protrusion to fix the optical fiber adapter to an external device.

[0015] Preferably, a dust cap is further included, and a dust cap locking column cooperating with the bayonet is provided on the inner side of the dust cap; when the seat tube and the fixing ring are not installed on the base, the dust cap is used to be installed on the base and cover the front end of the base.

[0016] Preferably, a connecting rope is further included, and the connecting rope is used to connect the dust cap to the base.

[0017] Preferably, an insertion port notch is provided on the wall of the second insertion port, and an insertion member protrusion is provided at the tail end of the insert; when the insert is inserted into the second insertion port and the first insertion port at the same time, the insert member protrusion is inserted into the insertion port notch.

[0018] Preferably, it further comprises a waterproof ring;

[0019] A waterproof ring mounting seat is arranged in the base, and the waterproof ring is arranged in the waterproof ring mounting seat; when the seat tube is arranged on the base, the end of the seat tube abuts against the waterproof ring.

[0020] An optical fiber adapter comprises a base, the base is cylindrical and has a front end and a rear end; the interior of the base is used for optical fiber docking; the front outer side wall of the base is provided with a bayonet or an external thread extending inward from the front end surface; the edge of the base is provided with a notch;

[0021] A seat tube is detachably arranged at the front end of the base, and is used to match the optical fiber connector; the seat tube is cylindrical and has a flange that can be mounted on the front end surface of the base, and the flange is provided with a positioning protrusion inserted into the notch;

[0022] A fixing ring is detachably arranged on the base; the fixing ring is in an annular shape as a whole, a locking column or an internal thread is arranged on the inner side, and an extrusion portion is arranged on the fixing ring; the locking column or the internal thread cooperates with the bayonet or the external thread to fix the fixing ring to the base, and the seat tube is fixed to the base through the cooperation of the extrusion portion and the flange.

[0023] Beneficial effects of the utility model: the seat tube of the optical fiber adapter provided by the utility model is easy to remove from the base, the seat tube can be suitable for waterproof connectors of different specifications, and the fixing ring is locked by the insert to ensure the sealing and stability of the seat tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The schematic diagram of the exploded structure of the base, dust cap and rear fixing ring of the patent is shown;

[0025] Figure 2 The schematic diagram of the assembled structure of the base, dust cap and rear fixing ring of the patent is shown;

[0026] Figure 3 The schematic diagram of the assembled state of the base and the dust cap of the present invention is shown;

[0027] Figure 4 The schematic diagram of the structure of the base and the seat tube of the present invention when assembled is shown;

[0028] Figure 5 The structural schematic diagram of the seat tube of the present patent is shown;

[0029] Figure 6 A schematic diagram showing the structure of the fixing ring and the insert of the present invention from a first perspective is shown;

[0030] Figure 7 A schematic diagram showing the structure of the fixing ring and the insert of the present invention from a second perspective is shown;

[0031] Figure 8 A schematic diagram of the structure of the insert of the present patent is shown;

[0032] Fig. 9 The schematic diagram of the structure of the optical fiber adapter of the present invention when using three different seat tubes is shown;

[0033] Fig.10 A schematic diagram of the cross-sectional structure of the insert of the present invention in the inserted state is shown;

[0034] Fig.11 A schematic diagram of the cross-sectional structure of the insert of the present invention in the pulled-out state is shown;

[0035] Fig.12 A structural schematic diagram of another embodiment of the present patent is shown. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0037] like Figures 1 to 9 As shown, a fiber optic adapter includes a base 1, which is cylindrical and has a front end 2 and a rear end 3. The base 1 has a core insertion channel 4 inside, which is used for fiber optic docking. The front outer side wall of the base 1 is provided with a bayonet 6 extending inward from the front end face 5. The bayonet extends a short section from the front end along the axial direction and then extends radially. A notch 7 is provided on the edge of the base 1. A first protrusion is provided in the middle of the base 1, and a first insertion port 8 is provided in the axial direction of the first protrusion. The first protrusion can be a flange as a whole. The base 1 is observed as a whole, and the first protrusion or the first insertion port 8 is used as a dividing surface to divide the base 1 into a front half and a rear half. The front half, that is, the part with the front end, is generally exposed on the device that fixes the fiber optic adapter, and the rear half is generally hidden in the device that fixes the fiber optic adapter. The rear half of the base 1 is provided with a thread 9 on the surface, and a rear fixing ring 10 is configured on the base 1 through the thread 9. The rear fixing ring 10 can cooperate with the first protrusion or the flange to fix the fiber optic adapter to an external device.

[0038] The inner side of the dust cap 11 is provided with a dust cap locking column 12 that cooperates with the bayonet 6. When the base is not equipped with the seat tube and the fixing ring, that is, when the port is idle, the dust cap 11 is used to be installed on the base 1 and cover the front end of the base 1 to prevent water or dust from entering the plug channel 4. The dust cap 11 is connected to the base 1 by a connecting rope to prevent loss.

[0039] The seat tube 13 is detachably arranged at the front end of the base 1. The seat tube 13 can have various specifications. The seat tube 13 is used to adapt to the optical fiber connector. Optical fiber connectors of different specifications correspond to seat tubes 13 of different specifications. The seat tube 13 is cylindrical and has a flange 14 that can be mounted on the front end surface 5 of the base. The flange 14 is provided with a positioning protrusion 15 inserted into the notch 7. The positioning protrusion 15 and the notch 7 cooperate to limit the seat tube 13 in the longitudinal direction to prevent rotation.

[0040] A waterproof ring mounting seat 16 is provided in the base 1, and a waterproof ring 17 is provided in the waterproof ring mounting seat 17. When the seat tube 13 is arranged on the base 1, the end 18 of the seat tube 13 abuts against the waterproof ring 17, and when it is locked to the base 1 through the fixing ring 20, the base 1 and the waterproof ring 17 are pressed tightly to achieve waterproof sealing.

[0041] The flange 14 is provided with an escape portion 19 . When the seat tube 13 is located on the base 1 , the escape portion 19 allows the bayonet 6 to be exposed from the front end of the base 1 , so that the fixing ring 20 will not be blocked during assembly.

[0042] The fixing ring 20 is detachably arranged on the base 1. The fixing ring 20 is annular in shape, with a locking column 21 arranged on the inner side, and an extrusion portion 22 arranged on the fixing ring 20. The extrusion portion 22 is a step extending inward. A second protrusion is arranged on the outer side of the fixing ring 20, and a second insertion port 23 is arranged on the second protrusion along the axial direction. The locking column 21 cooperates with the bayonet 6 to fix the fixing ring 20 to the base 1, and the seat tube 13 is fixed to the base 1 through the extrusion portion 22 and the flange 14, and when the fixing ring 20 is in the locking position, at least a part of the second insertion port 23 overlaps with the first insertion port 8. In this way, the fixing ring 20 can be rotated to lock with the base 1 and fix the seat tube 13, and unlock the seat tube 13 to remove it from the base 1 and replace it with a seat tube of other specifications. In this patent summary, the bayonet of the base and the locking column of the fixing ring can also be fixed in a similar way to the rear fixing ring, and the two are replaced by being fixed by screwing.

[0043] When the fixing ring 20 is in the locking position, the insert 24 can be inserted into the second insertion opening 23 and the first insertion opening 8 at the same time, and the insert 24 can also be removed from the two insertion openings, so that the fixing ring 20 and the base 1 are locked together.

[0044] An insertion port protrusion 25 is provided in the second insertion port 23, and an insertion port bayonet 26 is provided on the surface of the insert 24. When the insert 24 is inserted into the second insertion port 23 and the first insertion port 8 at the same time, the insertion port protrusion 25 and the insertion port bayonet 26 cooperate to limit the position of the insert.

[0045] An insertion opening notch 27 is provided on the wall of the second insertion opening 23, and an insertion protrusion 28 is provided at the tail end of the insert 23. When the insert 24 is inserted into the second insertion opening 25 and the first insertion opening 8 at the same time, the insertion protrusion 28 is embedded in the insertion opening notch 27. At the same time, the insertion protrusion 28 can also be set higher than the insertion opening notch 27 to facilitate insertion and removal.

[0046] The structure of the insertion port bayonet 26 is similar to a guide rail groove. To facilitate the insertion and removal of the insert 24, an abutment portion 29 is provided at the front end of the insertion port bayonet. The abutment portion 29 is a block similar to the insertion port protrusion 25. A limited boss 30 is provided at the rear of the abutment portion 29. The limited boss 30 is a small boss point located on both sides, which can only play a damping role. The insertion port protrusion 25 is provided on the second insertion port 23.

[0047] When the insert 24 is inserted into the second insertion port 23 and the first insertion port 8 at the same time, Fig.10 As shown in FIG. 1 , the insertion port protrusion 25 is located behind the limiting boss 30, and the insert 24 is limited by the limiting boss 30. Although the limiting boss 30 is relatively small, since the insert 24 is pushed inward, only a damping force is needed to ensure that the insert 24 does not fall out easily. Fig.11 As shown, the insertion port protrusion 25 is located between the abutment portion 29 and the limiting boss 30, and the abutment portion 29 abuts against the insertion port protrusion 25. The abutment portion 29 cooperates with the insertion port protrusion 25 to prevent the insert 24 from completely disengaging from the second insertion port 23, and the limiting boss 30 cooperates with the insertion port protrusion 25 to provide a damping force, so that the insert 24 remains in the pulled-out position and does not easily fall back to the first insertion port 8.

[0048] This patent also provides a simpler optical fiber adapter, such as Fig.12 As shown, it includes a base 31, which is cylindrical and has a front end and a rear end. The interior of the base 31 is used for optical fiber docking, the front outer side wall of the base 31 is provided with a bayonet or external thread extending inward from the front end surface, and the edge of the base 31 is provided with a notch 32.

[0049] The seat tube 33 is detachably disposed at the front end of the base 31 and is used to adapt to the optical fiber connector. The seat tube 33 is cylindrical and has a flange 34 that can be mounted on the front end surface of the base 31. The flange 34 is provided with a positioning protrusion 35 inserted into the notch 32.

[0050] The fixing ring 36 is detachably disposed on the base 31. The fixing ring 36 is annular in shape, with a locking column or internal thread disposed inside, and an extrusion portion disposed on the fixing ring 36. The locking column or internal thread cooperates with the bayonet or external thread to fix the fixing ring 36 to the base 31, and the seat tube 33 is fixed to the base 31 through the extrusion portion and the flange 34.

Claims

1. An optical fiber adapter, characterized in that include: A base, the base is cylindrical and has a front end and a rear end; The interior of the base is used for optical fiber docking; The front outer side wall of the base is provided with a bayonet extending inward from the front end surface; the edge of the base is provided with a notch; the middle part of the base is provided with a first protrusion, and the first protrusion is provided with a first insertion port along the axial direction; A seat tube is detachably arranged at the front end of the base, and is used to match the optical fiber connector; the seat tube is cylindrical and has a flange that can be mounted on the front end surface of the base, and the flange is provided with a positioning protrusion inserted into the notch; A fixing ring is detachably arranged on the base; the fixing ring is annular in shape, a locking column is arranged on the inner side, and an extrusion portion is arranged on the fixing ring; a second protrusion is arranged on the outer side of the fixing ring, and a second insertion port is arranged on the second protrusion along the axial direction; the locking column cooperates with the bayonet to fix the fixing ring to the base, and the seat tube is fixed to the base through the cooperation of the extrusion portion and the flange, and when the fixing ring is in the locking position, at least a part of the second insertion port overlaps with the first insertion port; An inserter, when the fixing ring is located at the locking position, the inserter can be inserted into the second insertion port and the first insertion port and removed at the same time.

2. The optical fiber adapter according to claim 1, characterized in that: An insertion port protrusion is arranged in the second insertion port or the first insertion port, and an insertion port snap-in is arranged on the surface of the insert; when the insert is inserted into the second insertion port and the first insertion port at the same time, the insertion port protrusion and the insertion port snap-in cooperate to limit the insert.

3. The optical fiber adapter according to claim 2, characterized in that: The insertion port bayonet is configured to have an abutment portion at the front end, and a limiting boss is provided at the rear of the abutment portion; the insertion port protrusion is provided on the second insertion port; When the insert is inserted into the second insert opening and the first insert opening at the same time, the insert opening protrusion is located behind the limiting boss, and the insert is limited by the limiting boss; When the insert is pulled out, the insertion port protrusion is located between the abutment portion and the limiting boss, and the abutment portion abuts against the insertion port protrusion. The abutment portion cooperates with the insertion port protrusion to prevent the insert from escaping from the second insertion port, and the limiting boss cooperates with the insertion port protrusion to keep the insert in the pulled-out position.

4. The optical fiber adapter according to claim 1, characterized in that: The flange is provided with an escape portion, and when the seat tube is located on the base, the escape portion allows the bayonet to be exposed from the front end of the base.

5. The optical fiber adapter according to claim 1, characterized in that: Also included is a rear retaining ring; The rear surface of the base is provided with threads, and the rear fixing ring is configured on the base through the threads. The rear fixing ring can cooperate with the first protrusion to fix the optical fiber adapter to an external device.

6. The optical fiber adapter according to claim 1, characterized in that: It also includes a dust cap, the inner side of which is provided with a dust cap locking column that cooperates with the bayonet; when the base is not installed with the seat tube and the fixing ring, the dust cap is used to be installed on the base and cover the front end of the base.

7. The optical fiber adapter according to claim 6, characterized in that: Also included is a connecting rope, which is used to connect the dust cap to the base.

8. The optical fiber adapter according to claim 1, characterized in that: An insertion opening notch is arranged on the wall of the second insertion opening, and an insertion protrusion is arranged at the tail end of the insert; when the insert is inserted into the second insertion opening and the first insertion opening at the same time, the insertion protrusion is inserted into the insertion opening notch.

9. The optical fiber adapter according to any one of claims 1 to 8, characterized in that: Also includes waterproof ring; A waterproof ring mounting seat is arranged in the base, and the waterproof ring is arranged in the waterproof ring mounting seat; when the seat tube is arranged on the base, the end of the seat tube abuts against the waterproof ring.

10. The optical fiber adapter according to any one of claims 1 to 8, characterized in that: The manner in which the bayonet of the base and the locking column of the fixing ring are fixed in cooperation is replaced by the manner in which the base and the fixing ring are fixed by screwing together.

11. An optical fiber adapter, characterized in that: The base is cylindrical and has a front end and a rear end; the interior of the base is used for optical fiber docking; the front outer side wall of the base is provided with a bayonet or an external thread extending inward from the front end surface; the edge of the base is provided with a notch; A seat tube is detachably arranged at the front end of the base, and is used to match the optical fiber connector; the seat tube is cylindrical and has a flange that can be mounted on the front end surface of the base, and a positioning protrusion is arranged on the flange to be inserted into the notch; A fixing ring is detachably arranged on the base; the fixing ring is in an annular shape as a whole, a locking column or an internal thread is arranged on the inner side, and an extrusion portion is arranged on the fixing ring; the locking column or the internal thread cooperates with the bayonet or the external thread to fix the fixing ring to the base, and the seat tube is fixed to the base through the cooperation of the extrusion portion and the flange.

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