Bending-resistant optical cable and optical cable assembly

Abstract

The utility model relates to the field of optical cable communication, and discloses a bending-resistant optical cable and an optical cable assembly, comprising an optical cable body, an optical cable housing provided on the outer wall of the optical cable body, a protective assembly provided on the left end of the optical cable housing, the protective assembly comprising a movable sleeve, the inner wall of the movable sleeve being slidably connected to the outer wall of the optical cable housing, an air pressure chamber provided on the inner wall of the movable sleeve, a slide plate connected to the inner wall piston of the air pressure chamber, a screw rod rotatably connected to the rear end of the slide plate, an anti-bending assembly provided on the outside of the optical cable housing, the anti-bending assembly comprising a protective sleeve, and a bending groove provided on the outer wall of the protective sleeve. In the utility model, by providing the protective assembly, the position of the movable sleeve can be adjusted according to the actual connection length of the optical cable body, thereby ensuring that the optical cable body is less likely to be outside the optical cable housing, and the exposed part can be protected by the joint action of the air bag and the movable sleeve.

Description

Technical Field

[0001] The utility model relates to the field of optical cable communications, in particular to an optical cable and an optical cable assembly that are resistant to bending. Background Art

[0002] Optical cable is a communication cable used for high-speed transmission of optical signals. It is mainly composed of optical fiber and is covered with a protective casing and sheath to ensure that the optical fiber is not interfered with or damaged by the external environment during transmission.

[0003] At present, in order to ensure smooth docking or connection with the interface during the use of optical cables, it is necessary to reserve a portion of the cable outside the cable housing at the end of the optical cable to facilitate wiring and use by staff.

[0004] At present, in the process of connecting optical cables, since the lengths of the uncased areas of the optical cables that need to be used are often different, it may happen that the reserved uncased areas of some optical cables are longer. The optical cables that have been stripped of their casings are thin in themselves and happen to be at the interface, so they are more likely to bend and break, resulting in malfunctions during use. Therefore, a bending-resistant optical cable and optical cable assembly are proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a bending-resistant optical cable and optical cable assembly, aiming to improve the problem in the prior art that the reserved non-casing area of ​​the optical cable is long, which may cause bending and fracture in the unprotected area.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bending-resistant optical cable and optical cable assembly, comprising an optical cable body, an optical cable shell is arranged on the outer wall of the optical cable body, a protective assembly is arranged on the left end of the optical cable shell, the protective assembly comprises a movable sleeve, the inner wall of the movable sleeve is slidably connected to the outer wall of the optical cable shell, an air pressure chamber is provided on the inner wall of the movable sleeve, a slide is connected to the inner wall piston of the air pressure chamber, a screw is rotatably connected to the rear end of the slide, an anti-bending assembly is arranged on the outside of the optical cable shell, the anti-bending assembly comprises a protective sleeve, and a bending groove is provided on the outer wall of the protective sleeve.

[0007] As a further description of the above technical solution:

[0008] The outer wall of the screw rod passes through and is threadedly connected to the inner wall of the movable sleeve. A limiting hole is provided on the inner wall of the left end of the movable sleeve. An airbag 1 is fixedly connected to the inner wall of the limiting hole. The interior of the airbag 1 is connected to the interior of the air pressure chamber.

[0009] As a further description of the above technical solution:

[0010] The middle of the bending groove is fixedly connected with an airbag 2, the material of the airbag 2 is set to rubber, the initial shape of the airbag 2 is set to a hollow sphere, and the inner hollow position of the airbag 2 is filled with gas.

[0011] As a further description of the above technical solution:

[0012] The sliding direction of the movable sleeve is left and right sliding. The shape of the movable sleeve is similar to a hollow cylinder with a closed left end and an opening at the right end, and the inner diameter of the movable sleeve is consistent with the outer diameter of the optical cable housing.

[0013] As a further description of the above technical solution:

[0014] The right end of the air pressure chamber is approximately in the shape of a circular ring, the left end of the air pressure chamber is in an irregular shape, and the outer wall of the slide plate is in contact with the inner wall of the air pressure chamber.

[0015] As a further description of the above technical solution:

[0016] The right end of the mobile sleeve is provided with a ventilation hole, and the rest of the mobile sleeve except the rightmost end is well sealed.

[0017] As a further description of the above technical solution:

[0018] The bending groove is formed by a combination of two mutually symmetrical approximately semicircular grooves with the same width at the left and right ends and an angle less than 180 degrees, and the rotation angle between the adjacent groups of approximately semicircular grooves on the left and right is 90 degrees.

[0019] As a further description of the above technical solution:

[0020] The number of the limiting holes is the same as the number of the optical cable bodies, and the diameter of the limiting holes is larger than the diameter of the corresponding optical cable bodies.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting the protection component, the position of the movable sleeve can be adjusted according to the length of the actual cable body connection, so as to ensure that the position of the cable body outside the cable shell is less, and the exposed part can be protected by the joint action of the airbag and the movable sleeve, so as to reduce the risk of the cable body breaking after being stressed at the connection.

[0023] 2. In the utility model, by setting the anti-bending component, the other parts of the optical cable body can limit the bending range under the control of the bending groove, thereby preventing the optical cable body from being damaged due to a large bending range. At the same time, by setting the airbag 2, the optical cable body can automatically reset to a horizontal position when not subject to other external forces, thereby enhancing the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the utility model;

[0025] Figure 2 For the utility model Figure 1 A magnified schematic diagram of the three-dimensional structure of part A;

[0026] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the utility model;

[0027] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the three-dimensional structure of part B;

[0028] Figure 5 For the utility model Figure 3 The enlarged schematic diagram of the three-dimensional structure of the C part;

[0029] Figure 6 For the utility model Figure 3 The enlarged schematic diagram of the three-dimensional structure of the D part;

[0030] Figure 7 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the utility model;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure cross section of the cable body and the protection component in the utility model;

[0032] Fig. 9 For the utility model Figure 8 Schematic diagram of the enlarged three-dimensional structure of part E in the middle.

[0033] Legend:

[0034] 1. Optical cable body; 2. Optical cable shell; 3. Protection component; 4. Anti-bending component; 31. Moving sleeve; 32. Air pressure chamber; 33. Slide plate; 34. Screw; 35. Limiting hole; 36. Airbag 1; 41. Protection sleeve; 42. Bending groove; 43. Airbag 2. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Reference Figure 1 and Figure 3 The utility model provides an embodiment: a bending-resistant optical cable and an optical cable assembly, comprising an optical cable body 1, an optical cable housing 2 is arranged on the outer wall of the optical cable body 1, and a filling layer is arranged in the area outside the optical cable body 1 inside the optical cable housing 2. Through the arrangement of the filling layer, the optical cable housing 2 will not directly act on the optical cable body 1 after being subjected to external force, thereby achieving the effect of protecting the optical cable body 1.

[0037] Reference Figure 3 , Figure 7 and Figure 8 A protective component 3 is arranged on the outside of the left end of the optical cable housing 2, and the protective component 3 includes a movable sleeve 31. The inner wall of the movable sleeve 31 is slidably connected to the outer wall of the optical cable housing 2. The sliding direction of the movable sleeve 31 is left and right sliding. The shape of the movable sleeve 31 is similar to a hollow cylinder with a closed left end and an opening at the right end, and the inner diameter of the movable sleeve 31 is consistent with the outer diameter of the optical cable housing 2. The shape setting of the movable sleeve 31 ensures that the movable sleeve 31 can slide on the outside of the optical cable housing 2.

[0038] Reference Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig. 9 The inner wall of the movable sleeve 31 is provided with an air pressure chamber 32, the right end of the air pressure chamber 32 is approximately circular, and the left end of the air pressure chamber 32 is irregular. The inner wall piston of the air pressure chamber 32 is connected with a slide plate 33, and the outer wall of the slide plate 33 is in contact with the inner wall of the air pressure chamber 32. The regular shape setting of the right end of the air pressure chamber 32 ensures that the outer wall of the slide plate 33 and the inner wall of the air pressure chamber 32 remain in contact with each other after the slide plate 33 moves left and right, thereby ensuring that the air pressure inside the air pressure chamber 32 is constant.

[0039] Reference Figure 3 and Figure 5The rear end of the slide plate 33 is rotatably connected with a screw rod 34, the outer wall of the screw rod 34 penetrates and is threadedly connected with the inner wall of the movable sleeve 31, and a ventilation hole is arranged at the right end of the movable sleeve 31. The movable sleeve 31 has good airtightness except for the rightmost end. Through the ventilation and airtightness setting of the movable sleeve 31, it is ensured that the movable sleeve 31 has good airtightness in the left end area of ​​the slide plate 33, and the movable sleeve 31 is in communication with the outside in the right end area of ​​the slide plate 33, thereby ensuring that the expected effect is achieved.

[0040] Reference Figure 4 , Figure 7 and Fig. 9 A limiting hole 35 is provided on the inner wall of the left end of the movable sleeve 31. The number of the limiting holes 35 is the same as the number of the optical cable body 1, and the diameter of the limiting hole 35 is larger than the diameter of the corresponding optical cable body 1. An airbag 36 is fixedly connected to the inner wall of the limiting hole 35. The interior of the airbag 36 is connected to the interior of the air pressure chamber 32. The material of the airbag 36 is set to rubber, and the shape of the airbag 36 is set to be ring-shaped. After the airbag 36 is inflated, the outer wall can contact the outer wall of the optical cable body 1. The material setting of the airbag 36 ensures that the optical cable body 1 can be protected after the airbag 36 is inflated.

[0041] Reference Figure 1 , Figure 2 and Figure 6 The outer part of the optical cable housing 2 is provided with an anti-bending component 4, which includes a protective sleeve 41. The material of the protective sleeve 41 is set to rubber. The material setting of the protective sleeve 41 ensures that the protective sleeve 41 can be deformed within a certain range. The outer wall of the protective sleeve 41 is provided with a bending groove 42. The bending groove 42 is formed by a combination of a plurality of groups of mutually symmetrical approximately semicircular grooves with the same width at the left and right ends and an angle less than one hundred and eighty degrees, and the rotation angle between the adjacent groups of approximately semicircular grooves on the left and right is ninety degrees. Through the setting of the bending groove 42, it is ensured that the protective sleeve 41 rotates too much, resulting in the inner walls of the protective sleeve 41 on the left and right sides of the bending groove 42 contacting, which can produce a large resistance to the continued bending of the protective sleeve 41, thereby achieving an anti-bending effect.

[0042] Reference Figure 1 , Figure 2 and Figure 6 An airbag 2 43 is fixedly connected to the middle of the bending groove 42. The material of the airbag 2 43 is set to rubber. The initial shape of the airbag 2 43 is set to a hollow sphere, and the internal hollow position of the airbag 2 43 is filled with gas. The initial shape of the airbag 2 43 and the internal filling gas are set to ensure that the airbag 2 43 can be deformed, but after deformation, there is a force to restore the original state under the action of the gas, thereby ensuring that after the protective cover 41 is not subjected to external force, it can be restored to a horizontal state under the action of the resetting force of the airbag 2 43.

[0043] Working principle: When in use, after the end of the optical cable body 1 is fixed, the staff moves the movable sleeve 31 to the left, so that the area of ​​the optical cable body 1 exposed outside the optical cable housing 2 can be protected.

[0044] When the movement is completed, the staff rotates the screw 34 so that the screw 34 moves to the left during the rotation, so that the screw 34 pushes the slide 33 to slide to the left, so that the gas at the left end of the slide 33 can enter the airbag 36 under the push of the slide 33, so that the airbag 36 expands and contacts the outer wall of the optical cable body 1 after expansion, thereby achieving the protection effect on the end of the optical cable body 1.

[0045] When the rest of the cable body 1 is bent by force, the inner walls at both ends of the bending groove 42 will contact each other due to the force. After the two ends of the bending groove 42 are in contact, the cable body 1 continues to bend under greater force, thus achieving the effect of preventing bending.

[0046] At the same time, during the bending process of the optical cable body 1, the airbag 2 43 will be deformed. The airbag 2 43 at the protruding end of the bent optical cable body 1 will be stretched, and the airbag 2 43 at the concave end of the bent optical cable body 1 will be squeezed. Therefore, after the optical cable body 1 is not subjected to external force, the airbag 2 43 will be reset under the action of the internal gas pressure, thereby driving the protective cover 41 to reset, thereby resetting the optical cable body 1 to achieve an anti-bending effect.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bending-resistant optical cable and an optical cable assembly, comprising an optical cable body (1), characterized in that: The outer wall of the optical cable body (1) is provided with an optical cable housing (2), and a protective component (3) is provided on the left end of the optical cable housing (2). The protective component (3) comprises a movable sleeve (31), and the inner wall of the movable sleeve (31) is slidably connected to the outer wall of the optical cable housing (2). The inner wall of the movable sleeve (31) is provided with an air pressure chamber (32), and the inner wall piston of the air pressure chamber (32) is connected with a slide plate (33), and the rear end of the slide plate (33) is rotatably connected with a screw rod (34). The outer side of the optical cable housing (2) is provided with an anti-bending component (4), and the anti-bending component (4) comprises a protective sleeve (41), and the outer wall of the protective sleeve (41) is provided with a bending groove (42).

2. The bending-resistant optical cable and optical cable assembly according to claim 1, characterized in that: The outer wall of the screw rod (34) penetrates through and is threadedly connected to the inner wall of the movable sleeve (31); a limiting hole (35) is provided on the inner wall of the left end of the movable sleeve (31); an air bag (36) is fixedly connected to the inner wall of the limiting hole (35); the interior of the air bag (36) is connected to the interior of the air pressure chamber (32).

3. The bending-resistant optical cable and optical cable assembly according to claim 1, characterized in that: The middle of the bending groove (42) is fixedly connected with a second airbag (43), the material of the second airbag (43) is set to rubber, the initial shape of the second airbag (43) is set to a hollow sphere, and the inner hollow position of the second airbag (43) is filled with gas.

4. The bending-resistant optical cable and optical cable assembly according to claim 1, characterized in that: The sliding direction of the movable sleeve (31) is left-right sliding. The shape of the movable sleeve (31) is similar to a hollow cylinder with a closed left end and an opening at the right end. The inner diameter of the movable sleeve (31) matches the outer diameter of the optical cable housing (2).

5. The bending-resistant optical cable and optical cable assembly according to claim 1, characterized in that: The right end of the air pressure chamber (32) is approximately in the shape of a circular ring, and the outer wall of the slide plate (33) is in contact with the inner wall of the air pressure chamber (32).

6. The bending-resistant optical cable and optical cable assembly according to claim 1, characterized in that: The right end of the movable sleeve (31) is provided with a ventilation hole.

7. The bending-resistant optical cable and optical cable assembly according to claim 1, characterized in that: The bending groove (42) is formed by combining a plurality of groups of two mutually symmetrical approximately semicircular ring-shaped grooves with the same width at the left and right ends and an angle less than 180 degrees, and the rotation angle between the adjacent groups of approximately semicircular ring-shaped grooves on the left and right is 90 degrees.

8. The bending-resistant optical cable and optical cable assembly according to claim 2, characterized in that: The number of the limiting holes (35) is the same as the number of the optical cable body (1), and the diameter of the limiting hole (35) is larger than the diameter of the corresponding optical cable body (1).

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