Nonmetal optical cable with flexible reinforcing structure

Abstract

The utility model discloses a non-metal optical cable with a flexible reinforcing structure, relates to the technical field of optical cables, and aims to solve the problem that internal optical fibers of a non-metal optical cable in the prior art are easy to break under the action of external force to cause damage to the non-metal optical cable. The inner wall of the outer protection sleeve is connected with a wrinkle sleeve, the inner wall of the wrinkle sleeve is connected with an isolation sleeve, and an inner protection assembly is arranged in the isolation sleeve and comprises an inner protection sleeve. When the optical cable is subjected to external force, the external force is transmitted to the connected wrinkle sleeve after the outer protective sleeve is in contact with the external force, the wrinkles on the elastic wrinkle sleeve can slowly release the external force through contraction deformation, and when the slowly-released external force is continuously transmitted to the inside, the external force is continuously released. The elastic pipes distributed at equal intervals are located between the buffering sleeve and the isolation sleeve through the containing grooves, and external force is slowly released again through compression deformation of the elastic pipes.

Description

Technical Field

[0001] The utility model relates to the technical field of optical cables, in particular to a non-metallic optical cable with a flexible reinforcement structure. Background Art

[0002] Non-metallic optical cable refers to an optical cable without metal, which is mostly used in strong electric or lightning areas. The optical fiber inside the non-metallic optical cable is a cylindrical dielectric waveguide, which uses the principle of total reflection to transmit light. The structure of the optical fiber is roughly divided into the core part inside and the cladding part outside. In order to confine the optical signal to the core, the refractive index of the cladding must be less than the refractive index of the core. The refractive index of the graded-index optical fiber changes slowly, gradually decreasing from the axis to the cladding; while the refractive index of the abrupt-index optical fiber changes sharply in the core-cladding boundary area.

[0003] The existing non-metallic optical cables do not have a flexible reinforcement structure, and the internal optical fibers of the non-metallic optical cables are easily broken under the action of external forces, causing damage to the non-metallic optical cables. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a non-metallic optical cable with a flexible reinforcement structure, which overcomes the deficiencies of the prior art and effectively solves the problem that the internal optical fiber of the non-metallic optical cable in the prior art is easily broken under the action of external force, causing damage to the non-metallic optical cable.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A non-metallic optical cable with a flexible reinforcement structure comprises an outer protective sleeve, the inner wall of the outer protective sleeve is connected to a corrugated sleeve, and the inner wall of the corrugated sleeve is connected to an isolation sleeve, an inner protective component is arranged inside the isolation sleeve, and the inner protective component comprises an inner protective sleeve, a buffer sleeve connected to the outer wall of the inner protective sleeve, elastic tubes equidistantly distributed on the annular outer wall of the buffer sleeve, and optical fibers arranged inside the inner protective sleeve.

[0007] When the optical cable is subjected to external force, the outer protective sleeve contacts the external force and transmits the external force to the connected corrugated sleeve. The corrugated sleeve has elasticity and the corrugations thereon can release the external force by contraction and deformation. When the external force after release continues to be transmitted internally, the elastic tubes distributed at equal distances are placed between the buffer sleeve and the isolation sleeve by placing grooves, and the external force is released again by the compression deformation of the elastic tubes.

[0008] Preferably, the pleated sleeve is elastic, and the raised outer wall of the pleated sleeve is bonded and fixed to the inner wall of the outer protective sleeve.

[0009] Through the elastic pleated sleeve, when subjected to external force, the pleats on the pleated sleeve can release the external force by contraction and deformation.

[0010] Preferably, the isolation sleeve is made of waterproof material, and the raised inner wall of the pleated sleeve is bonded and fixed to the outer wall of the isolation sleeve.

[0011] The external water is blocked by the provided isolation sleeve.

[0012] Preferably, the annular outer wall of the buffer sleeve is provided with placement grooves distributed at equal distances, and the specifications of the elastic tube are matched with the specifications of the placement grooves.

[0013] The grooves are arranged so that the elastic tubes distributed at equal distances are located between the buffer sleeve and the isolation sleeve, and the external force is relieved again by the compression deformation of the elastic tubes.

[0014] Preferably, the outer wall of the inner protective sleeve is bonded to the inner wall of the buffer sleeve, and the elasticity of the buffer sleeve is smaller than the elasticity of the elastic tube.

[0015] The buffer sleeve provides certain support to the elastic tube by virtue of its higher toughness than the elastic tube.

[0016] Preferably, an insulating sleeve is provided inside the inner protective sleeve, and the insulating sleeve is wrapped around the outside of the optical fiber.

[0017] The optical fiber is wrapped and protected by an insulating sleeve.

[0018] The beneficial effects of the utility model are:

[0019] When the optical cable is subjected to external force, the outer protective sleeve contacts the external force and transmits the external force to the connected corrugated sleeve. The corrugated sleeve has elasticity and the corrugations thereon can release the external force by contraction and deformation. When the external force after release continues to be transmitted internally, the elastic tubes distributed at equal distances are placed between the buffer sleeve and the isolation sleeve by placing grooves, and the external force is released again by compressive deformation of the elastic tubes, which effectively solves the problem in the prior art that the internal optical fiber of the non-metallic optical cable is easily broken under the action of external force, causing damage to the non-metallic optical cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a non-metallic optical cable with a flexible reinforcement structure proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of a non-metallic optical cable with a flexible reinforcement structure proposed by the utility model;

[0022] Figure 3 The utility model is a schematic diagram of an expanded structure of an inner protection component of a non-metallic optical cable with a flexible reinforcement structure.

[0023] In the figure: 1. outer protective sleeve; 2. pleated sleeve; 3. isolation sleeve; 4. inner protective assembly; 5. inner protective sleeve; 6. buffer sleeve; 7. placement groove; 8. elastic tube; 9. insulating sleeve; 10. optical fiber. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example:

[0026] Reference Figure 1-3 A non-metallic optical cable with a flexible reinforcement structure, comprising an outer protective sleeve 1, the inner wall of the outer protective sleeve 1 is connected to a corrugated sleeve 2, the inner wall of the corrugated sleeve 2 is connected to an isolation sleeve 3, an inner protective component 4 is arranged inside the isolation sleeve 3, and the inner protective component 4 includes an inner protective sleeve 5, a buffer sleeve 6 connected to the outer wall of the inner protective sleeve 5, elastic tubes 8 equidistantly distributed on the annular outer wall of the buffer sleeve 6, and an optical fiber 10 arranged inside the inner protective sleeve 5;

[0027] The pleated sleeve 2 is elastic, and the raised outer wall of the pleated sleeve 2 is bonded and fixed to the inner wall of the outer protective sleeve 1. Through the elastic pleated sleeve 2, when subjected to external force, the pleats on the pleated sleeve 2 can release the external force by shrinking and deforming. The isolation sleeve 3 is made of waterproof material, and the raised inner wall of the pleated sleeve 2 is bonded and fixed to the outer wall of the isolation sleeve 3. The isolation sleeve 3 is provided to block external water;

[0028] The annular outer wall of the buffer sleeve 6 is provided with placement grooves 7 which are distributed at equal distances. The specifications of the elastic tube 8 are matched with those of the placement grooves 7. The placement grooves 7 enable the elastic tube 8 which are distributed at equal distances to be located between the buffer sleeve 6 and the isolation sleeve 3. The elastic deformation of the elastic tube 8 under pressure can release the external force again. The outer wall of the inner protective sleeve 5 is bonded to the inner wall of the buffer sleeve 6. The elasticity of the buffer sleeve 6 is less than that of the elastic tube 8. The buffer sleeve 6 has a higher toughness than the elastic tube 8, and provides certain support for the elastic tube 8. An insulating sleeve 9 is arranged inside the inner protective sleeve 5. The insulating sleeve 9 is wrapped around the outside of the optical fiber 10, and the optical fiber 10 is wrapped and protected by the insulating sleeve 9.

[0029] Working principle:

[0030] When the optical cable is subjected to external force, the outer protective sleeve 1 transmits the external force to the connected corrugated sleeve 2 after contacting the external force. The corrugated sleeve 2 has elasticity, and the corrugations thereon can release the external force by contraction and deformation. When the external force after release continues to be transmitted to the inside, the elastic tubes 8 distributed at equal distances are placed by placing the grooves 7 so as to be located between the buffer sleeve 6 and the isolation sleeve 3, and the external force is released again by the compression and deformation of the elastic tubes 8.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-metallic optical cable with a flexible reinforcement structure, comprising an outer protective sheath (1), characterized in that: The inner wall of the outer protective sleeve (1) is connected to a pleated sleeve (2), and the inner wall of the pleated sleeve (2) is connected to an isolation sleeve (3). An inner protective component (4) is arranged inside the isolation sleeve (3). The inner protective component (4) comprises an inner protective sleeve (5), a buffer sleeve (6) connected to the outer wall of the inner protective sleeve (5), elastic tubes (8) equidistantly distributed on the annular outer wall of the buffer sleeve (6), and an optical fiber (10) arranged inside the inner protective sleeve (5).

2. A non-metallic optical cable with a flexible reinforcement structure according to claim 1, characterized in that: The pleated sleeve (2) is elastic, and the raised outer wall of the pleated sleeve (2) is bonded and fixed to the inner wall of the outer protective sleeve (1).

3. The non-metallic optical cable with a flexible reinforcement structure according to claim 1, characterized in that: The isolation sleeve (3) is made of waterproof material, and the raised inner wall of the pleated sleeve (2) is bonded and fixed to the outer wall of the isolation sleeve (3).

4. The non-metallic optical cable with a flexible reinforcement structure according to claim 1, characterized in that: The annular outer wall of the buffer sleeve (6) is provided with placement grooves (7) distributed at equal distances, and the specifications of the elastic tube (8) are compatible with the specifications of the placement grooves (7).

5. The non-metallic optical cable with a flexible reinforcement structure according to claim 1, characterized in that: The outer wall of the inner protective sleeve (5) is bonded to the inner wall of the buffer sleeve (6), and the elasticity of the buffer sleeve (6) is smaller than the elasticity of the elastic tube (8).

6. The non-metallic optical cable with a flexible reinforcement structure according to claim 1, characterized in that: An insulating sleeve (9) is arranged inside the inner protective sleeve (5), and the insulating sleeve (9) is wrapped around the outside of the optical fiber (10).

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