PPO groove for optical fiber wiring

Abstract

The utility model relates to a PPO groove for optical fiber wiring, which comprises a groove body, the cross section of the groove body is U-shaped, a plurality of branching frames are arranged in the groove body, the branching frames are arranged side by side at intervals, and each branching frame comprises an upper branching frame, a lower branching frame and a sleeve, two ends of the upper branching frame and the lower branching frame are respectively and movably connected with the inner side of the sleeve, the outer side of the sleeve is provided with a rotating shaft, the rotating shaft is inserted into the side wall of the groove body, and the opposite sides of the upper branching frame and the lower branching frame are provided with a plurality of opposite semicircular holes. The optical fiber cables arranged in the groove body are arranged through the cable distribution frame, mixed twisting is prevented, cable distribution of the optical fiber cables with different diameters is supported, and the optical fiber cable distribution device is very convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring troughs, in particular to a PPO trough for optical fiber wiring. Background Art

[0002] Fiber duct is a plastic or iron (painted) wiring duct specially prepared for laying soft optical fiber, also known as fiber duct. The current installation method of fiber duct is to select the connection method between the fiber duct support frame angle iron and the wiring frame side beam according to the profile form of the wiring frame. The aluminum alloy wiring frame duct is equipped with waist nuts, and the porous U-shaped steel is directly fixed to the side beam of the wiring frame with bolts and nuts. Different types of supports are selected according to the model and size of the duct. Usually, optical fiber cables are placed in the wiring duct, and multiple cables are twisted together, which makes the wiring chaotic, causing confusion in optical fiber management to a certain extent, so it needs to be improved. Utility Model Content

[0003] Based on this, it is necessary to provide a PPO slot for optical fiber routing to address the above problems.

[0004] A PPO slot for optical fiber routing comprises a slot body, the cross section of the slot body is U-shaped, a plurality of branching frames are arranged in the slot body, the plurality of branching frames are arranged side by side and spaced apart, the branching frames comprise an upper branching frame, a lower branching frame and a sleeve, the two ends of the upper branching frame and the lower branching frame are respectively movably connected to the inner side of the sleeve, the outer side of the sleeve is provided with a rotating shaft, the rotating shaft is inserted into the side wall of the slot body, and a plurality of opposite semicircular holes are arranged on the side opposite to the lower branching frame.

[0005] Preferably, the outer wall of the slot body is provided with a clamping groove along its extension direction.

[0006] Preferably, the inner side of the sleeve is provided with a slide groove, and both ends of the upper branch frame and the lower branch frame are movably clamped in the slide groove, and both ends of the upper branch frame and the lower branch frame are connected by a spring.

[0007] Preferably, the upper branching frame and the lower branching frame are made of rubber.

[0008] Preferably, a bending sleeve is further provided at the corner of the trough body, and the bending sleeve is flatly clamped in the bottom of the trough body.

[0009] Preferably, a box cover is detachably mounted at the notch of the slot body.

[0010] The utility model is beneficial in that the optical fiber cables arranged in the slot are arranged by using the distribution frame to prevent twisting, and supports the distribution of optical fiber cables of different diameters, which is extremely convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional schematic diagram of a PPO groove for optical fiber routing according to one embodiment;

[0012] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle. DETAILED DESCRIPTION

[0013] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0014] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0016] like Figures 1-2As shown, a PPO slot for optical fiber routing includes a slot body 1, the cross section of the slot body 1 is U-shaped, a plurality of branching frames 2 are arranged in the slot body 1, and the plurality of branching frames 2 are arranged side by side and spaced apart, the branching frame 2 includes an upper branching frame 21, a lower branching frame 22 and a sleeve 23, the two ends of the upper branching frame 21 and the lower branching frame 22 are respectively movably connected to the inner side of the sleeve 23, the outer side of the sleeve 23 is provided with a rotating shaft, and the rotating shaft is inserted into the side wall of the slot body 1, and a plurality of opposite semicircular holes 211 are arranged on the side opposite to the upper branching frame 21 and the lower branching frame 22. Specifically, in this embodiment, the slot body 1 is made of plastic, specifically polyphenylene oxide (PPO) material is used to make the slot body, PPO has excellent physical and mechanical properties, low density, easy processing, good dimensional stability, etc. Its heat deformation temperature is between 90 and 175°C, suitable for use in a variety of temperature environments. The dielectric constant and dielectric loss tangent of PPO are the lowest among the five general engineering plastics, that is, it has the best insulation and good heat resistance. The slot body 1 is U-shaped, which is convenient for wiring. A branching frame 2 is set in the slot body 1. The branching frame 2 is used to separate the optical fiber bundles one by one to avoid the optical fibers from being entangled. The branching frame 2 includes an upper branching frame 21, a lower branching frame 22 and a sleeve 23, wherein the two ends of the upper branching frame 21 and the lower branching frame 22 are movably connected to the sleeve 23, so that the spacing between the upper branching frame 21 and the lower branching frame 22 is adjustable, and the opposite side of the upper branching frame 21 and the lower branching frame 22 is designed as a semicircular hole 211, and the two semicircular holes 211 cooperate with each other to clamp the optical fiber cable passing through. The optical fiber cable passes through the upper branch frame 21 and the lower branch frame 22. Because the spacing between the upper branch frame 21 and the lower branch frame 22 is adjustable, the semicircular hole 211 between the upper branch frame 21 and the lower branch frame 22 can match and clamp optical fiber cables of different diameters. In order to prevent damage to the outer skin of the optical fiber cable when clamping it, the upper branch frame 21 and the lower branch frame 22 are made of rubber and are flexibly clamped. At the same time, we set a rotating shaft on the outside of the sleeve 23, and use the rotating shaft to flexibly connect with the inner wall of the slot body 1, so that the entire branch frame 2 is rotatable. The branch frame 2 can be kept in a vertical state or laid flat, so that the optical fiber bundle passes directly without having to pass between the upper branch frame 21 and the lower branch frame 22, which is very convenient when emergency wiring is required.

[0017] like Figure 1 As shown, the outer wall of the tank body 1 is provided with a card slot 11 along its extension direction, and the card slot 11 is used to connect with the external frame without using bolts or other connecting parts to penetrate the tank body 1 to fix it, thereby avoiding damage to the tank body 1 and assembling is simple and convenient.

[0018] like Figure 2As shown, the inner side of the sleeve 23 is provided with a slide groove 231, and the two ends of the upper branch frame 21 and the lower branch frame 22 are movably clamped in the slide groove 231, and the ends of the upper branch frame 21 and the lower branch frame 22 are connected by springs 232. Specifically, the ends of the upper branch frame 21 and the lower branch frame 22 are connected by the spring 232, and the elastic force provided by the spring 232 is used to enable the upper branch frame 21 and the lower branch frame 22 to always clamp the optical fiber cable passing through, and the spacing between the upper branch frame 21 and the lower branch frame 22 can be automatically adjusted according to the diameter of the passing optical fiber.

[0019] like Figure 1 As shown, a bending sleeve 3 is also provided at the corner of the slot body 1, and the bending sleeve 3 is flatly clamped in the bottom of the slot body 1. Specifically, the bending sleeve 3 is used to increase the bending radius of the optical fiber, because the smaller the bending radius, the greater the loss. When the core diameter is large and the bending radius is small, the bending loss will increase, and the optical signal will be seriously lost, because the optical signal will be transferred from the single-mode optical fiber originally propagating along the core to other modes outside the core, that is, in the multi-mode optical fiber. This process is called optical signal coupling.

[0020] like Figure 1 As shown, a cover 4 is detachably mounted at the notch of the tank body 1 to seal the entire tank body 1 and prevent dust and other impurities from entering the tank body 1.

[0021] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A PPO slot for optical fiber routing, characterized in that: It comprises a trough body, the cross section of which is U-shaped, a plurality of branching frames are arranged in the trough body, and the plurality of branching frames are arranged side by side at intervals, the branching frames comprise an upper branching frame, a lower branching frame and a sleeve, the two ends of the upper branching frame and the lower branching frame are respectively movably connected to the inner side of the sleeve, the outer side of the sleeve is provided with a rotating shaft, the rotating shaft is inserted into the side wall of the trough body, and a plurality of opposite semicircular holes are arranged on the side opposite to the lower branching frame.

2. A PPO slot for optical fiber routing as claimed in claim 1, characterized in that: The outer wall of the slot body is provided with a clamping slot along its extending direction.

3. A PPO slot for optical fiber routing as claimed in claim 1, characterized in that: The inner side of the sleeve is provided with a slide groove, and both ends of the upper branching frame and the lower branching frame are movably clamped in the slide groove, and both ends of the upper branching frame and the lower branching frame are connected by springs.

4. A PPO slot for optical fiber routing as claimed in claim 1, characterized in that: The upper branching frame and the lower branching frame are made of rubber.

5. The PPO slot for optical fiber routing according to claim 1, characterized in that: A bending sleeve is also provided at the corner of the trough body, and the bending sleeve is flatly clamped in the bottom of the trough body.

6. The PPO slot for optical fiber routing according to claim 1, characterized in that: A box cover is detachably mounted on the notch of the slot body.

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