CN203012186U - Optical fiber clamping fixing device - Google Patents

Abstract

The utility model discloses an optical fiber clamping and fixing device which is easy to install and does not easily produce bending deformation on the surface of the optical fiber. Including: including the base (31), the first limiting end surface (321) and the clamping piece (33), the first limiting end surface (321) is perpendicular to the base surface (35), and the clamping piece (33) is located at the first limit On one side of the end face (321), the clamping piece (33) includes a pair of hooks (36) and a wire slot (37). There is a gap (38) in the middle of the pair of hooks (36), and the wire slot ( 37) Located below the notch (38), the width of the wire slot (37) is larger than the outer diameter of the optical fiber protective plastic sleeve (44), and the base (31) is provided with a connecting part (34) to the optical fiber use equipment. After adopting such a structure, the installation and fixing of the optical fiber is simple and convenient, without signal attenuation and loss, and the installation and fixing reliability is higher; the structure is simple and light, easy to process and manufacture, and the production cost is relatively low.

Description

Fiber card line fixing device

technical field

The utility model relates to an optical fiber installation and fixing device, in particular to an optical fiber installation clamping and fixing device.

Background technique

Due to the advantages of small size, light weight, anti-electromagnetic interference, strong corrosion resistance, good confidentiality, wide frequency band, good anti-interference performance, good conduction performance and large transmission information capacity, optical fiber is widely used as an important optical transmission signal medium. on communication equipment. During use, the optical fiber should be installed and fixed on the equipment used, and it should be easy to install, remove and replace the optical fiber. At present, the commonly used technical means for installing and fixing optical fibers is mainly the briquetting method. As shown in Figure 1, it is a commonly used fiber optic fixing structure: one end of the fiber clamp 11 is provided with a hinge position 12, holes 13 and 14 are used to install the shaft, and the lower end of the fiber clamp is provided with a protective plastic sleeve for the optical fiber The matching pressure groove 15 with matching outer diameter, and two threaded holes 16 are provided on the upper end surface of the optical fiber pressing block. Figure 2 shows the use process of this optical fiber fixing method: a hinge fixing position 21 is designed on the device window, and a mounting hole 22 is provided at this position. When installing and fixing, use screws 23 to pass through the hole 13, the mounting hole 22 and the Hole 14, so that the optical fiber clamp can rotate with the screw, then insert the optical fiber 25 into the optical module 26 in sequence, then put the optical fiber lines into the optical fiber groove 27 of the device window in turn, press the optical fiber lines in turn, and align them flat Rotate the optical fiber clamp to press the optical fiber protective plastic sleeve 281 evenly with the pressure groove, then adjust the optical fiber along the length of the optical fiber so that the tapered limit plastic sleeve 282 clamps the optical fiber clamp, and finally tighten the optical fiber clamp through the screw 29 and fiber mounts fixed to the device window.

The above-mentioned optical fiber installation and fixing method has the following defects: when there are many optical fiber lines in the equipment, the optical fiber lines must be pressed together and adjusted to align them flat before covering the optical fiber pressing block, which is inconvenient to operate, and the optical fiber needs to be disassembled or replaced during debugging and use It is also very inconvenient; it is easy to bend and deform the surface of the clamped optical fiber to cause attenuation and loss of optical fiber signals; the structure is complex, the operation is cumbersome, and the production and assembly efficiency is low.

Utility model content

The technical problem to be solved by the utility model is to provide an optical fiber installation and fixing device that is easy to install and operate, has good fixing effect, is not easy to produce bending deformation on the surface of the optical fiber, and is easy to disassemble and replace.

In order to solve the above-mentioned technical problems, the utility model optical fiber clamping and fixing device includes a base, a first limiting end face and a clamping piece, the first limiting end surface is perpendicular to the base surface, and the clamping piece is located on one side of the first limiting end surface, The clamping parts include a pair of hooks and a wire slot. There is a gap in the middle of the pair of hooks. The wire slot is located below the gap. The width of the wire slot is larger than the outer diameter of the optical fiber protective plastic sleeve. Connecting parts of the device.

As a preferred solution of the present invention, the size of the notch is smaller than the outer diameter of the optical fiber protective plastic sleeve, and the top ends of the pair of hooks are a smooth slope.

As another preferred solution of the present utility model, the base also includes a second limit end surface and wire clips on both sides thereof, the first limit end surface is located at the front end of the base, and the second limit end surface is located at the rear of the base The distance between the first limit end face and the second limit end face is the length difference between the two optical fibers coming out of the two optical module interfaces; an auxiliary clamping piece is provided on the other side of the first limit end face.

After adopting the clamping fastening structure, the optical fiber installation and fixing operation is simple, convenient and fast, the installation procedure is simplified, and the fixing effect is more stable, which greatly improves the production and assembly efficiency. At the same time, the installed and fixed optical fiber will not cause optical fiber signal attenuation and loss due to extrusion and bending deformation, so the installation and fixing reliability is higher. And because the clamping and fixing structure is simple and light, easy to process and manufacture, and the production cost is relatively low.

Description of drawings

Fig. 1 is a schematic structural diagram of an optical fiber compact in the prior art.

Fig. 2 is a schematic diagram of an assembly structure of an optical fiber pressing block and optical fiber using equipment in the prior art.

Fig. 3 is a schematic structural view of the fiber clamping and fixing device of the present invention.

Fig. 4 is a structural schematic diagram of the installation of the fiber clamp fixing device of the present invention on the equipment used.

Detailed ways

Fig. 3 is a schematic structural view of the fiber clamping and fixing device of the present invention. The device includes a base 31 , a first limiting end surface 321 , a second limiting end surface 322 , a wire clamping member 33 and an auxiliary wire clamping member 310 . The base 31 is provided with fixing through holes 34, and the number of the through holes 34 on the base can be adjusted according to the size of the base, and can be one or more. The fixing through hole 34 is used to install and fix the fiber clamp fixing device on the equipment.

The first limit end surface 321 and the second limit end surface 322 are all perpendicular to the base surface 35, the first limit end surface 321 is located at the front end of the base 31, the second limit end surface 322 is located at the rear end of the base 31, and the two limit end surfaces are respectively The clamping parts 33 on one side have the same height. The distance between the front and rear limit end faces 321 and 322 makes up for the length difference between the two optical fibers coming out of the two optical module ports, ensuring the consistency of the distance between the two optical fiber heads and the tapered limit plastic sleeve, thereby ensuring the consistency of the optical fiber and reducing the costs.

The wire clamping member 33 includes a pair of hooks 36 and a wire slot 37 . There is a notch 38 in the middle of the pair of hooks 36 , the wire slot 37 is located below the notch 38 , and the size of the notch 38 is slightly smaller than the outer diameter of the optical fiber protective plastic sleeve 44 . A pair of hooks 36 are used to block the installed optical fiber so that it is restrained and not messy and misplaced. The auxiliary clamping part 310 can be used to clamp other components other than the optical fiber according to the needs of the equipment.

A smooth slope 39 is formed at the top of the pair of hooks 36 to press the optical fiber into the slot 37 . The width of the wire slot 37 is slightly larger than the outer diameter of the optical fiber protective plastic sleeve 44, and the cross section of the wire slot 37 can be elongated, oval or other shapes. It not only satisfies the need to place the optical fiber, but also does not cause the optical fiber surface to be squeezed and bent and deformed to cause optical fiber signal attenuation and loss, and has high reliability.

Fig. 4 shows the situation that the fiber clamping fixing device of the present invention is specifically installed on the use equipment. The installation steps are as follows: first install and fix the base 31 of the optical fiber cable fixing device on the device 41 with standard screws; then insert the optical fiber plugs of the optical fiber 42 into the optical module 43 in sequence; then press the optical fiber protective plastic sleeve 44 through the gap 38 to install Enter the line groove 37 of the fiber clamping and fixing device; adjust the optical fiber along the length of the fiber, so that the optical fiber tapered limit plastic sleeve 45 withstands the limit end face 32 of the fiber clamping and fixing device; the other optical fiber uses the same Method card up. So far, the installation and fixing of the optical fiber to the equipment structure is completed. If you need to disassemble and replace the optical fiber, you can directly take out the optical fiber from the wire groove of the optical fiber clamping and fixing device. The operation is simple, convenient and fast, the installation procedure is simplified, and the production and assembly efficiency is high.

The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (8)

1. An optical fiber clamping and fixing device, characterized in that the fixing device includes a base (31), a first limiting end surface (321) and a clamping member (33), and the first limiting end surface (321) Perpendicular to the base surface (35), the clamping piece (33) is located on one side of the first limiting end surface (321). The clamping piece (33) includes a pair of hooks (36) and a wire slot (37). There is a gap (38) in the middle of a pair of hooks (36), the wire slot (37) is located below the gap (38), the width of the wire slot (37) is larger than the outer diameter of the optical fiber protection plastic sleeve (44), and the base (31) is provided with a connection part (34) with the optical fiber using equipment. 2. The fiber clamping and fixing device according to claim 1, characterized in that: the size of the notch (38) is smaller than the outer diameter of the optical fiber protective plastic sleeve (44). 3. The optical fiber cable fixing device according to claim 1 or 2, characterized in that: the top ends of the pair of hooks (36) are a smooth slope (39). 4. The optical fiber clamping and fixing device according to claim 3, characterized in that: the base (31) further includes a second limiting end face (322) and clamping pieces (33) on both sides thereof, The first limiting end surface (321) is located at the front end of the base (31), the second limiting end surface (322) is located at the rear end of the base (31), and the first limiting end surface (321) and the second limiting end surface ( 322) is the length difference between the two optical fibers coming out of the interfaces of the two optical modules. 5. The optical fiber clamping and fixing device according to claim 4, characterized in that an auxiliary clamping member (310) is provided on the other side of the first limiting end surface (321). 6. The fiber clamping and fixing device according to claim 1, 2, 4 or 5, characterized in that: the cross section of the wire slot (37) is oblong or elliptical. 7. The optical fiber clamping and fixing device according to claim 1, characterized in that: the connecting part (34) on the base (31) and the optical fiber using equipment is a through hole. 8. The fiber clamping and fixing device according to claim 7, characterized in that: the number of said through holes is two.

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