Anti-rotation adapter for fixing optical fiber device

Abstract

An anti-rotation adapter for fixing an optical fiber device comprises a to-be-installed piece for installing the optical fiber device and an adapter block. The to-be-installed piece is provided with an optical fiber installation fixing hole, and one end of the optical fiber device is fixed in the optical fiber installation fixing hole. The adapter block is of a cavity shell structure with an opening in the bottom, a vertical optical fiber penetrating hole is formed in the uppermost portion of a shell, a non-rotating type fixing structure of a part to be installed is arranged in a shell cavity, an optical fiber installation fixing hole of the part to be installed is communicated with the optical fiber penetrating hole and is coaxial with the optical fiber penetrating hole, and a connecting fixing structure is arranged on the outer side face of the upper portion of the shell of the adapter block. The rotation problem of the optical fiber device in actual engineering installation is solved, winding and rotation of an optical fiber device line are prevented, the installation reliability and the installation operation efficiency are improved, and the breakage rate of the optical fiber device in the installation process is indirectly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of optical fiber, specifically relates to a fixed optical fiber anti -rotation adapter. BACKGROUND

[0002] Although the optical fiber has the advantages of large communication capacity, long relay distance, good security performance, strong adaptability, small size, light weight and low price, it also has the disadvantages of brittle texture and low mechanical strength, and the installation force of manual installation is difficult to grasp, so that the optical fiber device is easily damaged, and winding and breaking phenomenon easily occurs during installation of the optical fiber device. For example, the optical fiber collimator is easily wound and broken in actual engineering application. One end of the optical fiber collimator is fixed and installed in a to-be-installed part such as a detection chamber, and the other end connector needs to be connected to the output end of a light source. During connection of the to-be-installed part and the part where the light source is located, the connection connector of the optical fiber collimator is first connected to the output connector of the light source, and then the to-be-installed part and the part where the light source is located are connected. During the latter connection, especially the threaded connection, the optical fiber collimator line is often wound and even broken. Therefore, unreasonable installation process during construction can easily damage the optical fiber device, increase the breakage rate of the optical fiber device, and reduce the service life of the optical fiber device. This problem has been puzzling the field installation of optical fiber.

[0003] The application relates to an adapter which can prevent winding and breaking defects during installation of an optical fiber device. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a kind of adapter of optical fiber device fast fixed anti -rotation with simple structure, it is easy to operate, can improve installation efficiency, solve the rotation of optical fiber in actual engineering installation, prevent the winding and rotation of optical fiber, improve installation reliability and installation operation efficiency, avoid the breakage of optical fiber device, indirectly improve the service life of optical fiber device.

[0005] The technical scheme adopted by the utility model is,

[0006] An adapter for fixing and preventing rotation of an optical fiber device includes a to-be-installed part for installing the optical fiber device and an adapter block.

[0007] The to-be-installed part is provided with an optical fiber installation fixing hole, and one end of the optical fiber device is fixed in the optical fiber installation fixing hole.

[0008] The adapter block is a cavity shell structure with an open bottom, the uppermost part of the shell is provided with a vertical optical fiber through hole, a non-rotating fixing structure for the to-be-installed part is formed in the cavity of the shell, the optical fiber installation fixing hole of the to-be-installed part is in communication with the optical fiber through hole and coaxial, and a connecting and fixing structure is arranged on the outer side of the upper part of the shell of the adapter block.

[0009] Further, the non-rotating fixing structure of the to-be-mounted member in the adapter block cavity comprises a second step hole and a pressing block, the lower surface of the fiber hole is provided with a first step hole for connecting and fixing the to-be-mounted member, the fiber mounting and fixing hole of the to-be-mounted member is in communication with the fiber hole and coaxial, the lower end of the first step hole is provided with a second step hole with a larger hole diameter than the outer periphery of the to-be-mounted member, and the first step hole and the second step hole are in communication and have the same axial direction.

[0010] Further, the non-rotating fixing structure of the to-be-mounted member in the adapter block cavity comprises a second step hole and a pressing block, the lower surface of the fiber hole is provided with a first step hole for connecting and fixing the to-be-mounted member, the fiber mounting and fixing hole of the to-be-mounted member is in communication with the fiber hole and coaxial, the lower end of the first step hole is provided with a second step hole with a larger hole diameter than the outer periphery of the to-be-mounted member, and the first step hole and the second step hole are in communication and have the same axial direction.

[0011] Further, the connecting and fixing structure on the upper portion of the outer side of the adapter block adopts screw connection.

[0012] Further, the connecting and fixing structure on the upper portion of the outer side of the adapter block adopts screw connection.

[0013] Further, the bottom end of the pressing block is provided with a clamping groove structure for controlling the rotating movement of the pressing block.

[0014] Further, the adapter further comprises a tightening wrench, the upper end of the tightening wrench is provided with a clamping groove structure matched with the bottom end of the pressing block, the tightening wrench is a hollow structure with a larger inner diameter than the outer periphery of the to-be-mounted member, the outer diameter of the tightening wrench is smaller than the hole diameter of the second step hole, and the length of the tightening wrench is at least greater than the sum of the height of the first step hole and the second step hole of the adapter block.

[0015] The adapter for fixing the optical fiber prevents the rotation of the optical fiber in actual engineering installation, prevents the winding and rotation of the optical fiber device line, improves the installation reliability and installation operation efficiency, and indirectly reduces the breakage rate in the installation of the optical fiber device.

[0016] The adapter for fixing the optical fiber prevents the rotation of the optical fiber in actual engineering installation, prevents the winding and rotation of the optical fiber device line, improves the installation reliability and installation operation efficiency, and indirectly reduces the breakage rate in the installation of the optical fiber device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an internal structure schematic view of the utility model;

[0018] Figure 2 It is an external structure schematic view of the utility model for installing the optical fiber device.

[0019] Figure 1 In the figure, 1 is an optical fiber joint, 2 is an optical fiber protection sleeve, 3 is a pressing block, 4 is an adapter block, 5 is a gas chamber protection cover, 6 is a tightening wrench, and 7 is a measurement gas chamber.

[0020] 4.1 - fiber hole, 4.2 - first step hole, 4.3 - second step hole; 4.4 - gas delivery hole; 4.5 - connecting thread. DETAILED DESCRIPTION

[0021] As Figure 1 shown, an adapter for fixing the anti-rotation of fiber devices, comprising a to-be-mounted member for mounting fiber devices, an adapter block 4;

[0022] The to-be-mounted member is provided with a fiber mounting and fixing hole, and one end of the fiber device is fixed in the fiber mounting and fixing hole;

[0023] The adapter block 4 is a hollow shell structure with an open bottom, the uppermost part of the shell is provided with a vertical fiber hole 4.1, a non-rotational fixing structure of the to-be-mounted member is arranged in the hollow cavity of the shell, the fiber mounting and fixing hole of the to-be-mounted member is in communication with and coaxial with the fiber hole 4.1, and the outer side of the upper part of the shell of the adapter block 4 is provided with a connecting and fixing structure.

[0024] The non-rotational fixing structure of the to-be-mounted member arranged in the hollow cavity of the adapter block 4 comprises two step holes arranged in the hollow cavity of the shell and a pressing block 3, the lower surface of the fiber hole 4.1 is provided with a first step hole 4.2 for connecting and fixing the to-be-mounted member, the fiber mounting and fixing hole of the to-be-mounted member is in communication with and coaxial with the fiber hole 4.1, the lower end of the first step hole 4.2 is provided with a second step hole 4.3 with a hole diameter larger than the outer periphery of the to-be-mounted member, and the first step hole 4.2 and the second step hole 4.3 are in communication and have the same axial direction;

[0025] Further comprising a pressing block 3, the pressing block 3 is used for fastening the to-be-mounted member for mounting fiber devices in the inner cavity of the adapter block 4, the pressing block 3 is arranged between the inner side of the first step hole and the outer side of the fixed end of the to-be-mounted member, and is fixedly connected with the inner side of the first step hole in the inner cavity of the adapter block 4.

[0026] Further, the connecting and fixing structure on the upper part of the outer side of the adapter block 4 adopts threaded connection.

[0027] Further, the fixed connection between the pressing block 3 and the adapter block 4 adopts detachable threaded connection.

[0028] Further, the bottom end of the pressing block 3 is provided with a clamping groove structure for controlling the rotational movement of the pressing block 3.

[0029] Further, the adapter block 4 further comprises a tightening wrench, the upper end of the tightening wrench 6 is provided with a clamping groove structure matched with the bottom end of the pressing block 3, the tightening wrench 6 is a hollow structure with an inner diameter larger than the outer periphery of the to-be-mounted member, the outer diameter of the tightening wrench 6 is smaller than the hole diameter of the second step hole 4.3 of the adapter block 4, and the length of the tightening wrench 6 is at least greater than the sum of the height of the first step hole 4.2 and the second step hole 4.3 of the adapter block 4.

[0030] Figure 1 In the embodiment, the to-be-installed part is provided with a fiber installation fixing hole, one end of the fiber device is installed in the fiber installation fixing hole, and in order to protect the fiber device, a fiber protection sleeve 2 can be sleeved on the outer periphery of the fixed end of the fiber device and then fixed on the to-be-installed part.

[0031] Figure 1 In the embodiment, the outer side of the upper part of the shell of the adapter block 4 is connected by threads.

[0032] Figure 1 In the embodiment, the compression block 3 adopts a ring structure, the outer side is provided with external threads, and the inner side of the compression block 3 is connected in a matched manner with the outer surface of the fixed end of the to-be-installed part.

[0033] In an embodiment, the clamping groove structure of the bottom end of the compression block 3 adopts a cross-shaped groove structure, and a sawtooth groove structure can also be adopted, which is not specifically limited here. Correspondingly, the clamping groove structure of the upper end of the tightening wrench 6 can be engaged in a matched manner.

[0034] In an embodiment, the adapter block 4 and the to-be-installed part are fixedly connected through the compression block 3, which can be detachable fixing or non-detachable fixing. The detachable connection can adopt thread connection or wedge connection, which is not specifically limited.

[0035] In an embodiment, the fiber device adopts a fiber collimator, the to-be-installed part is the whole of the measurement gas chamber 7 and the gas chamber protection cover 5, and the measurement gas chamber 7 and the gas chamber protection cover 5 are provided with coaxial fiber installation fixing holes that are connected in communication.

[0036] In an embodiment, the shell of the adapter block 4 is provided with a gas conveying hole 4.4 that is matched with the measurement gas chamber and the gas chamber protection cover of the to-be-installed part.

[0037] The tightening wrench 6 is rotated, and the compression block 3 is fixed and compressed in the first stepped hole 4.2 of the adapter block 4.

[0038] In application, the fiber device and the to-be-installed part are first fixedly connected.

[0039] The to-be-installed part is provided with a fiber installation fixing hole, the to-be-fixed end of the fiber device is installed in the fiber installation fixing hole,

[0040] The outer periphery of the fixed end of the fiber device is sleeved with a fiber protection sleeve 2, and the fiber device with the fiber protection sleeve 2 is installed in the fiber installation fixing hole of the to-be-installed part.

[0041] Specifically, when the fiber device is a fiber collimator, the fiber collimator, the measurement gas chamber 7, and the fiber protection sleeve 2 are coupled together, and then connected together through threads and the gas chamber protection cover 5.

[0042] Secondly, the optical fiber device is connected.

[0043] Specifically, the to-be-installed part with the optical fiber device is inserted from the bottom of the adapter block 4, and the optical fiber device passes through the optical fiber hole 4.1 on the top of the adapter block 4, and the free end of the optical fiber device is connected to the to-be-connected part.

[0044] Thirdly, the adapter block 4 is fixed.

[0045] Specifically, the connecting structure on the adapter block 4 is connected to the part where the optical fiber device is located.

[0046] Finally, the to-be-installed part and the adapter block 4 are fixedly connected.

[0047] The fixed end of the to-be-installed part is pushed into the first step hole 4.2, and the pressing block 3 can be inserted into the adapter block 4 before or after the to-be-installed part is inserted into the adapter block 4, and the to-be-installed part is fixed in the first step hole 4.2 of the adapter block 4 by rotating or pushing the pressing block 3.

[0048] Specifically, the fixed connection between the pressing block 3 and the adapter block 4 adopts detachable threaded connection, and the outer side of the pressing block 3 and the inner side of the first step hole of the adapter block 4 are provided with matching connecting threads. The bottom end of the pressing block 3 is provided with a clamping groove structure for controlling the rotation and movement of the pressing block 3, and the upper end of the tightening wrench 6 is also provided with a clamping groove structure matched with the bottom end of the pressing block 3. The clamping groove structures of the two are in clamping groove clamping butt joint, and by rotating the tightening wrench 6, the pressing block 3 can be rotated until the inner side of the pressing block 3 approaches the outer side of the fixed end of the to-be-installed part, and the pressing block 4 is rotated to the last stroke until it is not rotating, and then the tightening wrench 6 is removed.

[0049] In this embodiment, the outer side of the fixed end of the to-be-installed part is actually the outer surface of the air chamber protective cover 5.

[0050] In this way, by connecting the optical fiber device first, then fixing the adapter block, and then fixing the to-be-installed part and the adapter block 4, the winding and breaking phenomenon caused by the rotation of the optical fiber device during the installation of the to-be-installed part can be avoided.

[0051] Figure 1 In the illustrated embodiment, the optical fiber collimator and the measurement air chamber 7 and the air chamber protective cover 5 do not rotate under the action of the pressing block 3, and are tightly pressed in the first step hole 4.2 of the adapter block 4 under the action of the pressing block 4.

[0052] In actual engineering, the adapter block 4 can be assembled by threaded connection first, and then the to-be-installed part is tightened.

[0053] Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments are within the protection scope of the technical scheme of the present application.

Claims

1. A fixed optical fiber device anti-rotation adapter, characterized in that: It comprises a to-be-mounted part for mounting the optical fiber device, and an adapter block. The to-be-mounted part is provided with an optical fiber mounting and fixing hole, and one end of the optical fiber device is fixed in the optical fiber mounting and fixing hole. The adapter block is a cavity shell structure with an open bottom, the uppermost part of the shell is provided with a vertical optical fiber through hole, a non-rotating fixing structure of the to-be-mounted part is arranged in the cavity of the shell, the optical fiber mounting and fixing hole of the to-be-mounted part is in communication with the optical fiber through hole and coaxial, and a connecting and fixing structure is arranged on the outer side of the upper part of the shell of the adapter block.

2. The fixed optical fiber device anti-rotation adapter according to claim 1, characterized in that: The non-rotating fixing structure of the to-be-mounted part arranged in the cavity of the adapter block shell comprises a two-step hole and a pressing block, the lower surface of the optical fiber through hole is provided with a first step hole for connecting and fixing the to-be-mounted part, the optical fiber mounting and fixing hole of the to-be-mounted part is in communication with the optical fiber through hole and coaxial, the lower end of the first step hole is provided with a second step hole with a hole diameter larger than the outer periphery of the to-be-mounted part, and the first step hole and the second step hole are in communication and have the same axial direction; Further comprising a pressing block, the pressing block fastens the to-be-mounted part in the inner cavity of the adapter block, the pressing block is arranged between the inner side surface of the first step hole and the outer side surface of the fixed end of the to-be-mounted part, and is fixedly connected with the inner side surface of the first step hole in the inner cavity of the adapter block.

3. The anti-rotation adapter for securing optical fiber devices as described in claim 1, wherein: The connecting and fixing structure on the upper part of the outer side surface of the adapter block adopts a threaded connection.

4. The anti-rotation adapter for securing optical fiber devices of claim 2, wherein: The fixed connection between the pressing block and the adapter block adopts a threaded connection.

5. The anti-rotation adapter for securing optical fiber devices of claim 2, wherein: The bottom end of the pressing block is provided with a clamping groove structure for controlling the rotating movement of the pressing block.

6. The anti-rotation adapter for securing optical fiber devices of claim 2, wherein: Further comprising a tightening wrench, the upper end of the tightening wrench is provided with a clamping groove structure matched with the bottom end of the pressing block, the tightening wrench is a hollow structure with an inner diameter larger than the outer periphery of the to-be-mounted part, the outer diameter of the tightening wrench is smaller than the hole diameter of the second step hole, and the length of the tightening wrench is at least greater than the sum of the height of the first step hole and the second step hole of the adapter block.

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