Easily stripped optical cable, forming mold and stripping cutter assembly
By designing a through-hole central cavity and side cavity inside the optical cable sheath, and setting a stripping groove on the outer wall of the sheath, combined with a special forming mold and stripping tool assembly, the problem of difficult optical cable stripping is solved, and the easy exposure and efficient connection of optical cable components are achieved.
Patent Information
- Application Number
- CN202520293108.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The sheath and reinforcement of existing optical cables are tightly bonded together, making stripping difficult and the operation challenging.
The design connects the central and side shaft cavities within the sheath via an interface. The optical fiber is tangent to the outer surface of the reinforcing member at the interface. A stripping groove is provided on the outer wall of the sheath to position the cutting tool. Combined with the forming mold and the stripping tool assembly, the rigid stress of the reinforcing member is used to cause the sheath to burst open.
It reduces the difficulty of fiber optic cable stripping, improves cutting efficiency, easily exposes fiber optic cable components, and ensures accurate splicing and reliable connection of optical fibers.
Smart Images
Figure CN223728020U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of optical cable, especially to an easy-to-strip optical cable, a forming die and a stripping tool assembly. BACKGROUND
[0002] Optical cables, such as flat central bundle tube optical cables, are generally used for pipeline or overhead laying, and are often used in outdoor scenes. The structure of a flat central bundle tube optical cable usually includes optical fibers, reinforcing members and a flat sheath. The reinforcing members and the optical fibers are both located in the sheath and are arranged in parallel. The reinforcing members are used to enhance the tensile strength of the optical cable.
[0003] Optical cable stripping is an important link in communication engineering. Its purpose is to ensure the precise butt joint and reliable connection of optical fibers, facilitate the testing of optical fiber quality and optical cable performance, and efficiently troubleshoot and maintain daily maintenance, so as to ensure the stable operation and long-term service of the communication system. Optical cable stripping refers to stripping the outer sheath of an optical cable to expose the optical fibers for connection and testing.
[0004] The applicant has found that the prior art has at least the following technical problems: the reinforcing members are usually made of glue-coated GFRP or steel wire, the outer sheath is made of high-hardness and high-strength HDPE, and the sheath is tightly bonded with the reinforcing members. It is difficult to strip them with a general tool. UTILITY MODEL CONTENT
[0005] The utility model aims at providing an easy-to-strip optical cable, a forming die and a stripping tool assembly to solve the technical problems of difficult optical cable stripping and high operation difficulty in the prior art. The preferred technical solutions in the utility model and the technical effects thereof are described below.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:
[0007] The easy-to-strip optical cable provided by the utility model includes a sheath, optical fibers and reinforcing members, wherein:
[0008] The sheath is provided with a central axis cavity and a side axis cavity. The optical fibers are installed in the central axis cavity, and the reinforcing members are installed in the side axis cavity. The central axis cavity and the side axis cavity are connected through an interface. The outer surfaces of the optical fibers and the reinforcing members are tangent to each other at the interface.
[0009] The outer wall of the sheath is provided with a stripping groove for positioning a tool. When a cut is made on the sheath to pass through the side axis cavities, all the side axis cavities, the central axis cavity and the cut are in communication.
[0010] Preferably, the stripping grooves are V-shaped grooves, and the two stripping grooves are symmetrically arranged about the axis of the jacket and have their openings facing away from each other.
[0011] In a radial cross section of the jacket, the axis of the stripping grooves, the bisector of the side shaft cavities, and the symmetry line of the middle shaft cavity are located on the same straight line.
[0012] Preferably, the reinforcing members are arranged on opposite sides of the optical fibers, the side shaft cavities are arranged on opposite sides of the middle shaft cavity, and the axes of the side shaft cavities are arranged in parallel with the axis of the middle shaft cavity.
[0013] Preferably, the axes of all the side shaft cavities and the axis of the middle shaft cavity are located in the same plane.
[0014] Preferably, the jacket is a flat jacket, and the middle shaft cavity and the side shaft cavities are arranged along the long axis direction of the jacket.
[0015] Preferably, the easy-to-strip optical cable further comprises a loose tube, which is arranged in the jacket, surrounds the optical fibers, and is filled with a water-blocking part between the loose tube and the optical fibers.
[0016] Preferably, the loose tube is wrapped with a water-blocking glue.
[0017] Preferably, the reinforcing members are coated with a glue layer, which tightly bonds the reinforcing members to the cavity walls of the side shaft cavities.
[0018] The utility model also provides a forming die for manufacturing the above-mentioned easy-to-strip optical cable, which comprises an inner die and an outer die, the inner die comprises a first cavity for forming the middle shaft cavity and a second cavity for forming the side shaft cavities, and the first cavity and the second cavity are through and smoothly transitioned.
[0019] The utility model also provides a stripping tool assembly for cutting the above-mentioned easy-to-strip optical cable, which comprises an upper cover, a lower cover, and a cutter, wherein:
[0020] The upper cover is hingedly connected to one side of the lower cover, and the upper cover and the lower cover enclose a receiving cavity when closed, and the cutter is fixed to the upper cover and / or the lower cover and extends into the receiving cavity; when the optical cable is placed in the receiving cavity, the cutter can cut a notch on the jacket, and the notch penetrates the side shaft cavities.
[0021] Preferably, the stripping tool assembly further comprises a limiting jig, the limiting jig comprises a sleeve, the sleeve is arranged in the receiving cavity and is used for accommodating the optical cable, and the sleeve, the receiving cavity, and the outer contour shape of the jacket are matched.
[0022] The side wall of the sleeve is provided with a cutting slot, and the cutting knife is inserted into the cutting slot when the upper cover and the lower cover are closed.
[0023] Compared with the prior art, the easy-to-strip optical cable, the forming die and the stripping tool assembly have the following beneficial effects: in the prior art, the central cavity and the side cavity of the sheath are independent of each other, the central cavity and the side cavity of the sheath are connected through the interface in the utility model, the outer surface of the optical fiber and the reinforcing member is tangent at the interface, and there is no sheath material between the optical fiber and the reinforcing member at the tangent position; the stripping groove positioning tool prevents inaccurate positioning of the tool, the tool cuts the sheath along the stripping groove until the cut is connected with the side cavity, the optical cable element in the sheath is exposed by twisting and bending the optical cable and using the rigid stress of the reinforcing member, and the stripping difficulty of the optical cable is greatly reduced. The forming die is convenient for manufacturing the easy-to-strip optical cable. The stripping tool assembly cuts the sheath when the optical cable is placed in the accommodating cavity and the upper cover and the lower cover are closed. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0025] Figure 1 It is the cross-sectional structure schematic diagram of easy-to-strip optical cable;
[0026] Figure 2 It is the cross-sectional structure schematic diagram of sheath;
[0027] Figure 3 It is the front and back change schematic diagram of inner mold in forming die;
[0028] Figure 4 It is the structure schematic diagram of inner mold and outer mold cooperation in forming die;
[0029] Figure 5 It is the structure schematic diagram of upper cover and lower cover opening in stripping tool assembly;
[0030] Figure 6 It is the structure schematic diagram of upper cover and lower cover closing in stripping tool assembly;
[0031] Figure 7 It is the structure schematic diagram of optical cable and stripping tool assembly cooperation;
[0032] Figure 8It is the structure schematic view of sleeve in the stripping tool assembly.
[0033] Fig. 1, sheath; 10, stripping groove; 11, central shaft cavity; 12, side shaft cavity; 13, interface; 2, optical fiber; 3, reinforcing member; 4, loose tube; 5, water-blocking part; 6, water-blocking glue; 7, cutout; 81, inner mold; 811, first cavity; 812, second cavity; 82, outer mold; 91, upper cover; 92, lower cover; 93, cutter; 94, accommodating cavity; 95, hinge; 96, sleeve; 961, cutting slot. DETAILED DESCRIPTION
[0034] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.
[0035] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms 'center', 'length', 'width', 'height', 'upper', 'lower', 'front','rear', 'left', 'right','vertical', 'horizontal', 'top', 'bottom', 'inner', 'outer','side' and the like is the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified, the meaning of 'a plurality of' is two or more.
[0036] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms'set','mount', 'connect', 'connect' should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0037] The utility model embodiment provides a kind of easy-to-strip optical cable, forming die and stripping tool assembly, can easily expose optical cable element in sheath, greatly reduce the stripping difficulty of optical cable.
[0038] The technical scheme provided by the utility model will be described in more detail below. Figures 1-8 The technical scheme provided by the utility model will be described in more detail below.
[0039] Embodiment 1:
[0040] As shown in Figure 1 and Figure 2 The utility model provides an easy to open and peel optical cable, including sheath 1, optical fiber 2 and reinforcing member 3, wherein: sheath 1 is provided with middle axis cavity 11 and side axis cavity 12, and optical fiber 2 is installed in middle axis cavity 11, and reinforcing member 3 is installed in side axis cavity 12, middle axis cavity 11 and side axis cavity 12 are through by interface 13, and the outer surface of optical fiber 2 and reinforcing member 3 is tangent at interface 13.
[0041] The outer wall of sheath 1 is provided with peeling groove 10, and peeling groove 10 is used for positioning cutter, so that when cutting through side axis cavity 12 on sheath 1, all side axis cavities 12, middle axis cavities 11 and cutouts 7 are communicated.
[0042] As shown in Figure 1 and Figure 2 Peeling groove 10 is located on the opposite sides of sheath 1, peeling groove 10 is V-shaped groove, two peeling grooves 10 are symmetrically arranged about the axis of sheath 1, and the notches of the two peeling grooves 10 are oppositely arranged, and on the radial section of sheath 1, the axis of peeling groove 10, the opposite supporting line of side axis cavity 12 and the symmetry line of middle axis cavity 11 are located on the same straight line.
[0043] Peeling groove 10 is located on the opposite sides of sheath 1, which facilitates cutting sheath from both sides of sheath 1 and improves cutting efficiency.
[0044] In the prior art, middle axis cavity 11 and side axis cavity 12 of sheath 1 are independent and not communicated. In the utility model, middle axis cavity 11 and side axis cavity 12 of sheath 1 are communicated through interface 13, the outer surface of optical fiber 2 and reinforcing member 3 is tangent at interface 13, there is no sheath 1 material between optical fiber 2 and reinforcing member 3 at the tangent position, peeling groove 10 positions cutter, prevents cutter from being positioned inaccurately, cutter cuts sheath 1 along peeling groove 10 until cutout 7 is communicated with side axis cavity 12, through torsional bending optical cable, the rigidity stress of reinforcing member 3 makes sheath 1 on both sides with cutout 7 burst, and optical cable elements in sheath 1 can be easily exposed, which greatly reduces the difficulty of peeling optical cable.
[0045] As an optional implementation, as shown in Figure 1 Reinforcing member 3 is located on the opposite sides of optical fiber 2, side axis cavity 12 is located on the opposite sides of middle axis cavity 11, and the axis of side axis cavity 12 is parallel to the axis of middle axis cavity 11.
[0046] Two reinforcing members 3 are arranged in the optical cable in this embodiment, and the reinforcing members 3 are metal wires or the like. Correspondingly, the side shaft cavities 12 are located on opposite sides of the middle shaft cavity 11. When the optical cable is stripped, a cut 7 is made on both sides of the two side shaft cavities 12, and the two cuts 7 are located on the same straight line, so that the optical cable elements in the sheath 1 can be exposed by twisting.
[0047] As an optional embodiment, referring to Figure 1 , the axes of all the side shaft cavities 12 and the axis of the middle shaft cavity 11 are located in the same plane.
[0048] The above structure facilitates making the cuts 7 on both sides of the two side shaft cavities 12 and locating the two cuts 7 on the same straight line, as shown in Figure 2 .
[0049] As an optional embodiment, referring to Figure 1 and Figure 2 , the sheath 1 is a flat sheath 1, and the middle shaft cavity 11 and the side shaft cavities 12 are arranged along the long axis direction of the sheath 1. The stripping groove 10 is arranged at both ends of the long axis direction of the sheath 1.
[0050] The middle shaft cavity 11, the side shaft cavities 12 and the stripping groove 10 are located in the center of the sheath 1, and the middle shaft cavity 11 and the side shaft cavities 12 are closely arranged along the long axis direction of the sheath 1 and are in communication with each other. When a cutter is positioned in the stripping groove 10 and cuts along the long axis direction of the sheath 1, cuts 7 are made on both sides of the side shaft cavities 12, as shown in Figure 2 , the axes of the cuts 7, the middle shaft cavity 11 and the side shaft cavities 12 are located on the same straight line and are in communication with the outer surface of the sheath 1. At this time, the sheath 1 can be repeatedly twisted or bent to use the rigid stress of the reinforcing members 3 to break the sheath 1, so that the optical fiber 2 elements in the sheath 1 can be easily exposed.
[0051] As an optional embodiment, referring to Figure 1 , the easy-to-strip optical cable further comprises a loose tube 4, and the loose tube 4 is arranged in the sheath 1. The loose tube 4 is sleeved on the optical fiber 2, and a water-blocking part 5 is filled between the loose tube 4 and the optical fiber 2.
[0052] The water-blocking part 5 can be a water-blocking fiber paste, a water-blocking yarn or a water-blocking powder in the prior art, which protects the internal optical fiber 2 and thus improves the waterproof performance of the optical cable.
[0053] As an optional embodiment, referring to Figure 1 , the loose tube 4 is wrapped with a water-blocking glue 6, which can protect the loose tube 4 and improve the waterproof performance, air-tightness and mechanical properties of the optical cable.
[0054] As an optional embodiment, referring to Figure 1 , the reinforcing members 3 are coated with a glue layer, and the glue layer tightly bonds the reinforcing members 3 and the cavity walls of the side shaft cavities 12.
[0055] The adhesive layer can ensure that the reinforcing member 3 is tightly bonded to the sheath 1, and can ensure that the reinforcing member 3 is fully stressed when the optical cable is overhead laid, thereby improving the tensile performance.
[0056] Embodiment 2
[0057] Referring to Figure 3 and Figure 4 , the embodiment provides a forming die for manufacturing the easy-to-strip optical cable of Embodiment 1, and the forming die comprises an inner die 81 and an outer die 82, the inner die 81 comprises a first cavity 811 for forming the central cavity 11 and a second cavity 812 for forming the side cavity 12, and the first cavity 811 and the second cavity 812 are through and smoothly transitioned.
[0058] The forming die of the embodiment, the first cavity 811 and the second cavity 812 on the inner die 81 are through, when the reinforcing member 3 is two, the first cavity 811 is through and smoothly transitioned with the two second cavities 812, and at the same time, the distance from the center of the first cavity 811 to the outer edge of the inner die 81 is increased, so that the sheath material on both sides extrudes the reinforcing member 3 to the middle, ensuring that the central cavity 11 and the side cavities 12 on both sides are tangent, and the sheath 1 at the tangent position is not connected.
[0059] The forming die is convenient for manufacturing the easy-to-strip optical cable.
[0060] Embodiment 3
[0061] Referring to Figures 5-8 , the embodiment provides a stripping tool assembly for cutting the easy-to-strip optical cable of Embodiment 1, and the stripping tool assembly comprises an upper cover 91, a lower cover 92 and a cutter 93, wherein: the upper cover 91 and one side of the lower cover 92 are hingedly connected, the upper cover 91 and the lower cover 92 are closed to form a containing cavity 94, and the cutter 93 is fixed on the upper cover 91 and / or the lower cover 92 and extends into the containing cavity 94; when the optical cable is placed in the containing cavity 94, the cutter 93 can cut a notch 7 on the sheath 1, and the notch 7 penetrates the side cavity 12. Referring to Figure 5 and Figure 6 , one side of the upper cover 91 and the lower cover 92 is hingedly connected through a hinge 95, and the other side is closable.
[0062] The cutter 93 can be threadedly connected to the upper cover 91 or the lower cover 92, so as to adjust the length of the cutter 93 extending into the containing cavity 94, thereby adjusting the length of the notch 7.
[0063] Referring to Figure 7 , when the optical cable has two reinforcing members 3, the two side cavities 12 of the sheath 1 need to be cut, at this time, referring to Figure 5 and Figure 6As shown, the cutting knife 93 is fixed on the upper cover 91 and the lower cover 92 and extends into the accommodating cavity 94.
[0064] Referring to Figure 6 and Figure 7 As shown, the optical cable is placed in the accommodating cavity 94, and the upper cover 91 and the lower cover 92 are closed, at this time the cutting knife 93 directly cuts the sheath 1 to form the cut 7, and by adjusting the extension length of the cutting knife 93, it is ensured that the cut 7 can pass through the side shaft cavity 12.
[0065] The stripping tool assembly can directly cut the sheath 1 to form the cut 7 when the optical cable is placed in the accommodating cavity 94 and the upper cover 91 and the lower cover 92 are closed.
[0066] As an optional embodiment, referring to Figure 7 and Figure 8 As shown, the stripping tool assembly further comprises a limiting jig, the limiting jig comprises a sleeve 96, the sleeve 96 is located in the accommodating cavity 94 and is used for accommodating the optical cable, the sleeve 96, the accommodating cavity 94 and the outer contour of the sheath 1 are matched; a cutting slot 961 is formed in the side wall of the sleeve 96, and the cutting knife 93 is inserted into the cutting slot 961 when the upper cover 91 and the lower cover 92 are closed.
[0067] The sleeve 96 plays a role of fixing the optical cable and can prevent the optical cable from moving.
[0068] Referring to Figure 7 and Figure 8 As shown, for the flat optical cable, the sleeve 96 is flat, the inner diameter of the sleeve is about 1.1 times of the outer diameter of the optical cable, and the cutting slot 961 is arranged in the middle of the two sides of the sleeve 96; after the optical cable is inserted into the sleeve 96, the sleeve 96 is placed in the accommodating cavity 94, the upper cover 91 and the lower cover 92 are closed, the cutting knife 93 just extends into the cutting slot 961, and the cutting knife 93 longitudinally cuts the sheath 1 along the cutting slot 961.
[0069] In the description of the specification, specific features, structures or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0070] In the description of the specification, the description of the terms “one embodiment”, “some embodiments”, “example”, “specific example” or “some examples” means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.
[0071] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An easy-to-open cable, characterized by, The cable comprises a jacket, optical fibers and reinforcing members, wherein: a central cavity and a lateral cavity are arranged in the jacket, the optical fibers are arranged in the central cavity, and the reinforcing members are arranged in the lateral cavity; the central cavity and the lateral cavity are connected through an interface, and the optical fibers and the outer surface of the reinforcing members are tangent to the interface; a stripping groove is arranged on the outer wall of the jacket, and the stripping groove is used for positioning a cutter, so that when the cutter cuts the jacket to form a cut-through the lateral cavity, all the lateral cavities, the central cavity and the cut are in communication.
2. The easy open cable of claim 1, wherein, The stripping grooves are located on opposite sides of the jacket, and the stripping grooves are V-shaped grooves, and the two stripping grooves are symmetrically arranged about the axis of the jacket, and the two stripping grooves are arranged with their openings facing away from each other. On a radial cross section of the jacket, the axis of the stripping groove, the opposite supporting lines of the lateral cavities and the symmetric lines of the central cavities are located on the same straight line.
3. The easy open cable of claim 1, wherein, The reinforcing members are located on opposite sides of the optical fibers, and the lateral cavities are located on opposite sides of the central cavities, and the axes of the lateral cavities are parallel to the axes of the central cavities. The axes of all the lateral cavities and the axes of the central cavities are located in the same plane.
4. The easy open cable of claim 1, wherein, The jacket is a flat jacket, and the central cavities and the lateral cavities are arranged along the long axis of the jacket.
5. The easy open cable of claim 1 wherein, The easy-to-strip optical cable further comprises a loose tube, the loose tube is located in the jacket, the loose tube is sleeved on the optical fibers, and a water-blocking part is filled between the loose tube and the optical fibers.
6. The easy open cable of claim 5, wherein, The loose tube is wrapped with a water-blocking glue.
7. The easy open cable of claim 1 wherein, The reinforcing members are coated with a glue layer, and the glue layer tightly bonds the reinforcing members and the cavity walls of the lateral cavities.
8. A forming die characterized by, A forming mold for manufacturing the easy-to-strip optical cable of any one of claims 1-7, the forming mold comprises an inner mold and an outer mold, the inner mold comprises a first cavity for forming the central cavities and a second cavity for forming the lateral cavities, and the first cavity and the second cavity are connected and smoothly transitioned.
9. A de-bulking tool assembly characterized by, A stripping cutter assembly for cutting the easy-to-strip optical cable of any one of claims 1-7, the stripping cutter assembly comprises an upper cover, a lower cover and a cutter, wherein: the upper cover is hingedly connected to one side of the lower cover, and when the upper cover and the lower cover are closed, a receiving cavity is formed, and the cutter is fixed on the upper cover and / or the lower cover and extends into the receiving cavity; when the optical cable is placed in the receiving cavity, the cutter can cut the jacket to form a cut-through the lateral cavities.
10. The stripping tool assembly of claim 9, wherein, The stripping cutter assembly further comprises a limiting jig, the limiting jig comprises a sleeve, the sleeve is located in the receiving cavity and is used for accommodating the optical cable, and the sleeve, the receiving cavity and the outer contour of the jacket are matched in shape; a cutting slot is formed in the side wall of the sleeve, and when the upper cover and the lower cover are closed, the cutter is inserted into the cutting slot.