An optical fiber communication transmission line maintenance device

Abstract

The utility model discloses a kind of optical fiber communication transmission line maintenance device, including base, two groups of positioning parts and an activity part are provided on the base, each group of positioning parts includes a first positioning column and a second positioning column, the clearance for clamping optical fiber is formed between the first positioning column and the second positioning column, cavity is provided on the base, adjusting mechanism and fixing mechanism are provided in the cavity, the first positioning column or the second positioning column in each group of positioning parts is connected with the adjusting mechanism, the clearance between the first positioning column and the second positioning column is adjusted by the adjusting mechanism, the first positioning column or the second positioning column is clamped and fixed by the fixing mechanism being arranged in the first positioning column or the second positioning column both sides in each group of positioning parts.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber communication technology, and specifically relates to an optical fiber communication transmission line maintenance device. Background Technology

[0002] Pairing optical fibers and identifying fiber fault points on optical cable lines is a challenging task. Traditional methods require cutting the fiber core, comparing distance changes, and then splicing, a cumbersome process. The method disclosed in Chinese Patent CN201911060946.6, which uses a device to change the radius of curvature of the optical fiber to be paired and observes changes in the reflection curve of an optical time-domain reflectometer to achieve pairing, can be completed without breaking the fiber and without affecting ongoing operations.

[0003] However, the clamping gap between the positioning cylinder and the positioning pin in the device used in this method is fixed and cannot be adapted to different specifications of optical fibers. This can easily lead to the following problems: First, for thin-diameter bare fibers, the clamping may be too loose and slip, affecting the curvature adjustment accuracy; second, for thick-diameter sheathed fibers, the gap may be too narrow, causing compression damage and increasing additional attenuation; and third, the device is difficult to adapt to scenarios where multiple specifications of optical fibers are mixed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a fiber optic communication transmission line maintenance device to solve the problems mentioned in the background art.

[0005] An optical fiber communication transmission line maintenance device includes a base with two sets of positioning parts and a movable part. Each set of positioning parts includes a first positioning post and a second positioning post, with a gap between the first and second positioning posts for clamping optical fibers. The base has a cavity containing an adjustment mechanism and a fixing mechanism. The first or second positioning post in each set of positioning parts is connected to the adjustment mechanism, which adjusts the gap between the first and second positioning posts. The fixing mechanism is located on both sides of the first or second positioning post in each set of positioning parts for clamping and fixing the first or second positioning post.

[0006] Preferably, the adjusting mechanism includes an adjusting screw, an adjusting nut connected to the adjusting screw, a connecting rod connected to the adjusting nut, and the connecting rod connected to the first positioning post in the two sets of positioning parts or to the second positioning post in the two sets of positioning parts; One end of the adjusting screw is connected to the first support part, and a support rod is connected to the adjusting nut. The support rod is connected to the second support part.

[0007] Preferably, the second support part includes a support rod, a movable ring is sleeved on the support rod, the support rod is connected to the movable ring, and one end of the support rod is connected to the first support ring.

[0008] Preferably, the first support part is a second support ring, and the end of the adjusting screw located on the first support part passes through the first support part and is connected to an operating part.

[0009] Preferably, the fixing mechanism includes a bidirectional lead screw, which includes a left-handed forward lead screw portion and a right-handed reverse lead screw portion. A lead screw nut assembly is connected to the forward lead screw portion and the reverse lead screw portion, and a clamping assembly is connected to the lead screw nut assembly.

[0010] Preferably, the wire nut assembly includes a wire nut body and a connecting ring formed at the end of the wire nut body, wherein a detachable screw is connected to the connecting ring.

[0011] Preferably, the clamping assembly includes a connecting block, the upper end of which is connected to a clamping block by screws, and the connecting block has a connecting hole.

[0012] Preferably, both ends of the bidirectional lead screw are connected to the base via support rings, and a rotating part is connected to the bidirectional lead screw.

[0013] Preferably, the cavity provided on the base includes a movable cavity for the first positioning post or the second positioning post, a first mounting cavity for the adjustment mechanism, and a second mounting cavity for the fixing mechanism.

[0014] Preferably, the base is connected to a bottom plate.

[0015] Compared with existing technologies, this utility model provides an adjustment mechanism and a fixing mechanism for the first positioning post or the second positioning post on the base. This allows the gap between the first positioning post and the second positioning post to be adjusted, enabling the device to adapt to optical fibers of different specifications. When locating fibers and fault points, the gap between the device and the optical fiber can be adjusted according to the specifications of the optical fiber. This avoids the problem of thin-diameter bare fibers slipping due to loose clamping, which affects the curvature adjustment accuracy. It also avoids the problem of thick-diameter sheathed optical fibers being squeezed and damaged due to excessively narrow gaps, which would increase additional attenuation. At the same time, it adapts to multi-specification optical fiber splicing scenarios, improving the efficiency and quality of optical cable line maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is an assembly drawing of a fiber optic communication transmission line maintenance device provided by this utility model; Figure 2 This is an exploded view of an optical fiber communication transmission line maintenance device provided by this utility model; Figure 3 This is a schematic diagram of the connection structure between the adjustment mechanism and the fixing mechanism provided by this utility model; Figure 4 This is a schematic diagram of the connection structure between the adjustment mechanism and the fixing mechanism provided by this utility model; Figure 5 This is a schematic diagram of the structure of the base provided by this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0022] like Figure 1 and Figure 2 As shown, a fiber optic communication transmission line maintenance device includes a base 1. The base 1 has two sets of positioning parts and a movable part 6. Each positioning part includes a first positioning post 21 and a second positioning post 22. A gap for clamping the optical fiber is formed between the first positioning post 21 and the second positioning post 22. The base 1 has a cavity 10, in which an adjustment mechanism and a fixing mechanism are provided. The first positioning post 21 or the second positioning post 22 in each positioning part is connected to the adjustment mechanism, which adjusts the gap between the first positioning post 21 and the second positioning post 22. The fixing mechanism is located on both sides of the first positioning post 21 or the second positioning post 22 in each positioning part, for clamping and fixing the first positioning post 21 or the second positioning post 22.

[0023] In a specific implementation, the adjustment mechanism and the fixing mechanism are connected to the first positioning post 21, and the second positioning post 22 is not equipped with the adjustment mechanism and the fixing mechanism. The second positioning post 22 is fixed to the base 1, and the position of the first positioning post 21 is adjusted, thereby adjusting the gap between the first positioning post 21 and the second positioning post 22.

[0024] Alternatively, in this embodiment, such as Figure 1 As shown, the adjustment mechanism and the fixing mechanism are connected to the second positioning post 22. The first positioning post 21 is not equipped with the adjustment mechanism and the fixing mechanism. The first positioning post 21 is fixed to the base 1. The position of the second positioning post 22 is adjusted, thereby adjusting the gap between the second positioning post 22 and the first positioning post 21.

[0025] like Figure 2 and Figure 3As shown, the adjustment mechanism includes an adjustment screw 31, an adjustment nut 32 connected to the adjustment screw 31, a connecting rod 33 connected to the adjustment nut 32, and the connecting rod 33 connected to the first positioning post 21 or the second positioning post 22 in the two sets of positioning parts; one end of the adjustment screw 31 is connected to the first support part 34, and a support rod 35 is connected to the adjustment nut 31, which is connected to the second support part 36.

[0026] The second support part 36 includes a support rod 361, on which a movable ring 362 is sleeved. The support rod 361 is connected to the movable ring 362, and one end of the support rod 361 is connected to the first support ring 363.

[0027] The first support part 34 is a second support ring, and the end of the adjusting screw 31 located on the first support part 34 passes through the first support part 34 and is connected to the operating part 37.

[0028] The first support ring 363 and the second support ring are connected to the base 1, one end of the adjusting nut 32 is connected to the base 1 through the first support ring 363, and one end of the support rod 361 is connected to the base 1 through the second support ring.

[0029] like Figure 4 As shown, the distance between the end of the adjusting nut 32 away from the first support ring 363 and the end of the support rod 361 away from the second support ring is 5~10mm.

[0030] In this embodiment, the connecting rod 33 in the adjustment mechanism is provided with fixed rings at both ends. The fixed rings are connected to the second positioning post 22. When the operating part 37 is rotated on the base 1, the adjusting screw 31 inside the base 1 can be rotated, thereby causing the adjusting nut 32 to move linearly. This also causes the connecting rod 33 to drive the two second positioning posts 22 on the base 1 to move, thereby simultaneously adjusting the distance between the two second positioning posts 22 and the two first positioning posts 21, avoiding the positional error caused by adjusting the positioning post individually.

[0031] When the adjusting nut 32 moves linearly, the moving ring 362 can move on the support rod 361 because the moving ring 362 is connected to the adjusting nut 32 through the support rod 361.

[0032] In a preferred embodiment, the support rod 361 has a protrusion formed along the axial direction, and the moving ring 362 can move on the protrusion, thereby reducing the contact area between the inner wall of the moving ring 362 and the outer wall of the support rod 361 and reducing the moving friction of the moving ring 362.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, the fixing mechanism includes a bidirectional lead screw 41, which includes a left-handed forward lead screw portion 411 and a right-handed reverse lead screw portion 412. A lead screw nut assembly 42 is connected to the forward lead screw portion 411 and the reverse lead screw portion 412, and a clamping assembly 43 is connected to the lead screw nut assembly 42.

[0034] The nut assembly includes a nut body 421 and a connecting ring 422 formed at the end of the nut body 421, wherein a detachable screw is connected to the connecting ring 422.

[0035] The clamping assembly 43 includes a connecting block 431, and the upper end of the connecting block 431 is connected to the clamping block 433 by a screw 432. The connecting block 431 has a connecting hole.

[0036] The two ends of the bidirectional lead screw 41 are connected to the base 1 through support rings 44, and a rotating part 45 is connected to the bidirectional lead screw 41.

[0037] In this embodiment, the adjusting mechanism is configured with the second positioning post 22, and the fixing mechanism is also configured with the second positioning post 22. Figure 1 , Figure 2 and Figure 3 As shown, the clamping block 433 is located below the connecting rod 33. When it is necessary to adjust the position of the second positioning post 22, the bidirectional lead screw 41 is first rotated by rotating the rotating part 45 on the side of the (forward) base 1, so that the corresponding clamping block 433 on the forward lead screw part 411 moves to the left and the clamping block 433 on the reverse lead screw part 412 moves to the right. The two clamping blocks 433 move away from the second positioning post 22 respectively. At this time, the second positioning post 22 is adjusted to the required position by the adjusting mechanism, and then the rotating part 45 is rotated in the reverse direction. At this time, the corresponding clamping block 433 on the forward lead screw part 411 and the clamping block 433 on the reverse lead screw part 412 move closer to the second positioning post 22, thereby clamping and fixing the second positioning post 22.

[0038] like Figure 2 and Figure 5 As shown, the cavity 10 provided on the base 1 includes a movable cavity 101 for the first positioning post 21 or the second positioning post 22, a first mounting cavity 102 for the adjustment mechanism, and a second mounting cavity 103 for the fixing mechanism.

[0039] In this embodiment, the movable cavity 101 is configured with the second positioning post 22, and the movable cavity 101 communicates with the first mounting cavity 102 and the second mounting cavity 103. The second mounting cavity 103 is opened from the bottom of the base 1, and a bottom plate 5 is connected to the bottom of the base 1 to seal the second mounting cavity 103.

[0040] In summary, the fiber optic communication transmission line maintenance device provided by this utility model has the following advantages: 1. The position of the second positioning post relative to the first positioning post is adjusted by adjusting the screw, and then the second positioning post is clamped and fixed by the bidirectional lead screw and clamping block. This allows the device to adapt to different optical fibers when searching for fibers and fault points without replacing the overall structure, thus reducing the dependence on fixed dimensions.

[0041] 2. The screw adjustment is a linear fine-tuning structure, which is easy to operate. Fiber optic maintenance personnel can rotate the screw by rotating the operating part on the base of the device to achieve continuous and stepless position adjustment of the positioning column.

[0042] 3. When the bidirectional lead screw rotates, the clamping blocks on both sides will move towards the center synchronously, forming a symmetrical clamping force on the second positioning post. The force is even and not easily shifted. At the same time, the lead screw structure itself has a certain degree of self-locking, which can prevent loosening due to vibration, external force, etc. after clamping, ensuring the stability of the positioning post. If only the adjusting screw is used for fixing, the position may shift due to thread clearance or long-term stress. The mechanical clamping of the clamping blocks can supplement the fixing effect, forming a double guarantee of "adjustment + locking".

[0043] 4. The adjusting screw and bidirectional lead screw in this device can be rotated by manually rotating the corresponding operating parts on the side of the base. The adjustment structure is simple and does not require auxiliary conditions such as power supply or air supply, making it suitable for optical cable line maintenance scenarios.

[0044] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A fiber optic communication transmission line maintenance device, comprising a base (1), wherein the base (1) is provided with two sets of positioning parts and a movable part, each set of positioning parts comprising a first positioning post (21) and a second positioning post (22), wherein a gap for clamping an optical fiber is formed between the first positioning post (21) and the second positioning post (22), characterized in that, The base (1) is provided with a cavity (10), and an adjustment mechanism and a fixing mechanism are provided in the cavity (10). The first positioning post (21) or the second positioning post (22) in each group of positioning parts is connected to the adjustment mechanism. The adjustment mechanism adjusts the gap between the first positioning post (21) and the second positioning post (22). The fixing mechanism is provided on both sides of the first positioning post (21) or the second positioning post (22) in each group of positioning parts, and is used to clamp and fix the first positioning post (21) or the second positioning post (22). The adjustment mechanism includes an adjustment screw (31), an adjustment nut (32) connected to the adjustment screw (31), a connecting rod (33) connected to the adjustment nut (32), and the connecting rod (33) connected to the first positioning post (21) in the two sets of positioning parts or connected to the second positioning post (22) in the two sets of positioning parts; The fixing mechanism includes a bidirectional lead screw (41), which includes a left-handed forward lead screw portion (411) and a right-handed reverse lead screw portion (412). A lead screw nut assembly (42) is connected to the forward lead screw portion (411) and the reverse lead screw portion (412), and a clamping assembly (43) is connected to the lead screw nut assembly (42).

2. The optical fiber communication transmission line maintenance device according to claim 1, characterized in that, One end of the adjusting screw (31) is connected to the first support (34), and a support rod (35) is connected to the adjusting nut (32), which is connected to the second support (36).

3. The optical fiber communication transmission line maintenance device according to claim 2, characterized in that, The second support part (36) includes a support rod (361), on which a movable ring (362) is sleeved, and a support rod (35) is connected to the movable ring (362). One end of the support rod (361) is connected to the first support ring (363).

4. The optical fiber communication transmission line maintenance device according to claim 2, characterized in that, The first support part (34) is a second support ring, and the end of the adjusting screw (31) located on the first support part (34) passes through the first support part (34) and is connected to the operating part (37).

5. The optical fiber communication transmission line maintenance device according to claim 1, characterized in that, The wire nut assembly includes a wire nut body (421) and a connecting ring (422) formed at the end of the wire nut body (421), wherein a detachable screw is connected to the connecting ring (422).

6. The optical fiber communication transmission line maintenance device according to claim 1, characterized in that, The clamping assembly (43) includes a connecting block (431), and the upper end of the connecting block (431) is connected to the clamping block (433) by a screw (432). The connecting block (431) has a connecting hole.

7. The optical fiber communication transmission line maintenance device according to claim 1, characterized in that, The two ends of the bidirectional lead screw (41) are connected to the base (1) through support rings (44), and a rotating part (45) is connected to the bidirectional lead screw (41).

8. The optical fiber communication transmission line maintenance device according to claim 1, characterized in that, The cavity (10) provided on the base (1) includes a movable cavity (101) of the first positioning post (21) or the second positioning post (22), a first mounting cavity (102) for the adjustment mechanism, and a second mounting cavity (103) for the fixing mechanism.

9. The optical fiber communication transmission line maintenance device according to claim 1, characterized in that, The base (1) is connected to a bottom plate (5).

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