CN217060589U - Composite optical cable with good bending resistance effect - Google Patents

Abstract

The utility model relates to an effectual compound optical cable of anti bending, including first protective tube, the inside threaded connection of first protective tube has the second protection tube, the inside of second protection tube is provided with strengthens the core, the surface of strengthening the core is provided with the filling layer, the inside of filling layer is provided with quantity and is no less than five cable cores. This compound optical cable that anti bending is effectual, through setting up first protective tube and second protective tube, when using, the internal thread that can use the setting and external screw thread make up between with first protective tube and the second protective tube mutually, thereby protect the optical cable body, if where bad falls at the discovery optical cable, when needing the maintenance, only need first protective tube of gentle rotation and second protective tube can go on both, thereby overhaul the optical cable body, the pressure that often bears when compound optical cable buries underground is great, damping spring can produce a cushion force between outside first protective tube and the second protective tube this moment.

Description

Composite optical cable with good bending resistance effect

Technical Field

The utility model relates to a compound optical cable technical field specifically is a compound optical cable that anti bending effect is good.

Background

The composite optical cable uses single phosphatized steel wire as a reinforcing member, loose tubes containing multi-core optical fibers and ointment are tightly arranged around the single phosphatized steel wire in an SZ twisting mode, the gaps of the loose tubes are filled with water-blocking ointment, water-blocking wrapping tapes, embossed aluminum tapes (GYSTA type) or steel tapes (GYSTS type) are wrapped outside the loose tubes, and the outer sheath adopts high-quality linear low-density or high-density black polyethylene plastics.

At present, optical cables are mostly buried under roads, pressure borne by vehicles coming and going is increased, the optical cables are prone to being damaged or cracked due to the fact that the optical cables cannot bear pressure under the road, the normal service life of the optical cables is seriously affected, once the optical cables are broken, communication line disconnection is caused, and great discomfort is caused to normal life of the public, and therefore the composite optical cable with good bending resistance effect is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a compound optical cable that anti bending effect is good possesses advantages such as protect the optical cable, has solved because of the optical cable buries mostly underneath the road, and the vehicle of coming and going increases its bearing pressure, leads to the optical cable to bear not live pressure and take place the damage or collapse and split in the road underground easily, seriously influences the normal life of optical cable, and the optical cable can cause the communication line disconnection in case the fracture will arouse very big unwell problem to masses' normal life.

In order to achieve the above object, the utility model provides a following technical scheme: a composite optical cable with good bending resistance effect comprises a first protection tube, wherein a second protection tube is in threaded connection with the inside of the first protection tube, a reinforcing core is arranged inside the second protection tube, a filling layer is arranged on the outer surface of the reinforcing core, at least five cable cores are arranged inside the filling layer, a buffer layer is arranged on the outer surface of the filling layer, a bending resistance layer is arranged on the outer surface of the buffer layer, a protection layer is arranged on the outer surface of the bending resistance layer, four rubber pads are arranged on the outer surface of the protection layer, and a damping spring is fixedly arranged on one side, away from each other, of each two groups of the rubber pads;

the five cable cores respectively comprise loose tube sleeves, at least five loose tube sleeves are arranged inside the filling layer, coating layers are arranged inside the five loose tube sleeves, and optical fibers are arranged inside the five coating layers.

Preferably, the inner wall of the first protection pipe is provided with an internal thread, the outer surface of the second protection pipe is provided with an external thread, and the external thread is matched with the internal thread.

Preferably, every two sets of the one side that the shock attenuation spring deviates from mutually all laminates with the inner wall of second protection tube mutually, the inner wall of first protection tube also is provided with the shock attenuation spring that quantity is four.

Preferably, five cable cores are arranged around the outer surface of the reinforced core, and the five cable cores sequentially comprise a loose tube sleeve, a coating layer and an optical fiber from outside to inside.

Preferably, the filling layer is an aramid sand layer, and the protective layer is made of HDPE or TPU.

Preferably, the side of every four shock absorption springs which are deviated from each other is respectively stuck to the inner walls of the first protection tube and the second protection tube.

Preferably, the bending resistant layer is a bending resistant steel wire.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. the composite optical cable with good bending resistance effect is characterized in that the first protection pipe and the second protection pipe are arranged, when the composite optical cable is used, the first protection pipe and the second protection pipe can be combined through the arranged internal threads and external threads, so that the optical cable body is protected, if the optical cable is found to be damaged and needs to be maintained, the first protection pipe and the second protection pipe can be rotated only slightly, so that the optical cable body is maintained, the composite optical cable is often subjected to higher pressure when buried underground, the damping spring can generate a buffering force between the first protection pipe and the second protection pipe, so that the pressure applied to the first protection pipe and the second protection pipe is prevented from being directly applied to the first protection pipe and the second protection pipe, the pressure resistance of the composite optical cable is improved, and the rubber pad can prevent the damping spring from being stretched back and forth to excessively wear the first protection pipe and the second protection pipe, thereby protecting the composite optical cable;

2. the composite optical cable with good bending resistance effect can increase the gravity borne by the composite optical cable by arranging the reinforcing core, and is provided with the buffer layer and the bending resistance layer, so that when the composite optical cable is bent under the action of external force, the buffer layer and the bending resistance layer can counteract the external force through deformation and displacement, and simultaneously, the bending resistance layer is utilized, when the composite optical cable is bent under the action of the external force, the bending resistance layer provides reverse acting force, the bending angle is larger, the reverse acting force is stronger, the radian of the bent part is more gentle under the action of the same external force, the optical fiber is protected from being damaged, the optical cable is round and stable in structure by arranging the filling layer, and fillers of some optical cables also play roles of water resistance, fire resistance and the like, and the protective layer is mainly arranged and plays a role of mechanical reinforcement and corrosion resistance, prevent that the armor from receiving the damage in laying the process.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a schematic view of the connection mode between the first protection tube structure and the second protection tube of the present invention;

FIG. 3 is a right side view of the structure of the present invention;

fig. 4 is an enlarged view of a structure in fig. 3 according to the present invention.

In the figure: 1. a first protection tube; 101. an internal thread; 2. a second protection pipe; 201. an external thread; 3. a reinforcing core; 4. a filling layer; 5. a core is pulled; 501. pipe sleeve loosening; 502. a coating layer; 503. an optical fiber; 6. a buffer layer; 7. a bending resistant layer; 8. a protective layer; 9. a rubber pad; 10. shock attenuation spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the composite optical cable with good bending resistance in this embodiment includes a first protection tube 1, a second protection tube 2 is threadedly connected to an inner portion of the first protection tube 1, an internal thread 101 is disposed on an inner wall of the first protection tube 1, an external thread 201 is disposed on an outer surface of the second protection tube 2, the external thread 201 is adapted to the internal thread 101, the internal thread 101 and the external thread 201 are disposed to assemble a plurality of protection tubes together to protect the composite optical cable, a reinforcing core 3 is disposed inside the second protection tube 2, a filling layer 4 is disposed on an outer surface of the reinforcing core 3, at least five cable cores 5 are disposed inside the filling layer 4, a buffer layer 6 is disposed on an outer surface of the filling layer 4, a bending resistance layer 7 is disposed on an outer surface of the bending resistance layer 7, a protective layer 8 is disposed on an outer surface of the protective layer 8, and four rubber pads 9 are disposed on an outer surface of the protective layer 8, the side, which is far away from each other, of each two groups of rubber pads 9 is fixedly provided with a damping spring 10;

the five cable cores 5 respectively comprise loose tubes 501, at least five loose tubes 501 are arranged in the filling layer 4, coating layers 502 are respectively arranged in the five loose tubes 501, and optical fibers 503 are arranged in the five coating layers 502.

In summary, in the composite optical cable with good bending resistance, by arranging the first protection tube 1 and the second protection tube 2, when in use, the first protection tube 1 and the second protection tube 2 can be combined by using the arranged internal threads 101 and external threads 201, so as to protect the optical cable body, if the optical cable is found to be damaged, and needs to be maintained, the first protection tube 1 and the second protection tube 2 can be rotated slightly to repair the optical cable body, when the composite optical cable is buried underground, the pressure usually born by the composite optical cable is large, at this time, the damping spring 10 can generate a buffering force between the external first protection tube 1 and the second protection tube 2, so as to prevent the pressure born by the first protection tube 1 and the second protection tube 2 from being directly acted on the first protection tube 1 and the second protection tube 2, so as to improve the pressure resistance thereof, the rubber pad 9 can prevent the damping spring 10 from being stretched back and forth to excessively wear the first protection tube 1 and the second protection tube 2, thereby protecting the composite optical cable.

When the composite optical cable is used, the reinforcing core 3 is arranged, so that the gravity borne by the composite optical cable can be increased, the buffer layer 6 and the bending-resistant layer 7 are arranged, when the bending degree of the composite optical cable is changed, the buffer layer 6 and the bending-resistant layer 7 can offset external force through deformation and displacement, meanwhile, the bending-resistant layer 7 is used, when the composite optical cable is bent due to the external force, the bending-resistant layer 7 provides reverse acting force, the bending angle is larger, the reverse acting force is stronger, the radian of the bent part is smoother under the same external force action, the optical fiber 503 is protected from being broken, the filling layer 4 is arranged to mainly round the optical cable and has stable structure, some fillers of the optical cable also have the effects of water resistance, fire resistance and the like, the protective layer 8 is arranged, the protective covering layer is mainly arranged outside the sheath of the composite optical cable, and mainly plays the roles of mechanical reinforcement and corrosion resistance, the armor layer is prevented from being damaged in the laying process.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an anti effectual compound optical cable that bends, includes first protective tube (1), its characterized in that: the inner thread of the first protection pipe (1) is connected with a second protection pipe (2), a reinforcing core (3) is arranged inside the second protection pipe (2), a filling layer (4) is arranged on the outer surface of the reinforcing core (3), at least five cable cores (5) are arranged inside the filling layer (4), a buffer layer (6) is arranged on the outer surface of the filling layer (4), a bending resistant layer (7) is arranged on the outer surface of the buffer layer (6), a protection layer (8) is arranged on the outer surface of the bending resistant layer (7), four rubber pads (9) are arranged on the outer surface of the protection layer (8), and a damping spring (10) is fixedly arranged on one side, away from each other, of each two groups of the rubber pads (9);

the five cable cores (5) respectively comprise loose tube sleeves (501), at least five loose tube sleeves (501) are arranged inside the filling layer (4), coating layers (502) are respectively arranged inside the five loose tube sleeves (501), and optical fibers (503) are arranged inside the five coating layers (502).

2. The composite optical cable with good bending resistance according to claim 1, wherein: the inner wall of first protection pipe (1) is provided with internal thread (101), the surface of second protection pipe (2) is provided with external screw thread (201), and external screw thread (201) and internal thread (101) looks adaptation.

3. The composite optical cable with good bending resistance effect as claimed in claim 1, wherein: every two sets of one side that shock attenuation spring (10) deviate from mutually all laminates with the inner wall of second protection tube (2), the inner wall of first protection tube (1) also is provided with quantity and is four shock attenuation spring (10).

4. The composite optical cable with good bending resistance according to claim 1, wherein: the five cable cores (5) surround the outer surface of the reinforced core (3), and the five cable cores (5) sequentially comprise a loose tube sleeve (501), a coating layer (502) and an optical fiber (503) from outside to inside.

5. The composite optical cable with good bending resistance effect as claimed in claim 1, wherein: the filling layer (4) is an aramid sand layer, and the protective layer (8) is made of HDPE or TPU.

6. The composite optical cable with good bending resistance according to claim 1, wherein: one side of each four shock absorption springs (10) which deviates from each other is respectively stuck to the inner walls of the first protection tube (1) and the second protection tube (2).

7. The composite optical cable with good bending resistance according to claim 1, wherein: the bending-resistant layer (7) is a bending-resistant steel wire.

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