CN113339452B - Communication optical cable protector - Google Patents
Communication optical cable protector Download PDFInfo
- Publication number
- CN113339452B CN113339452B CN202110591994.9A CN202110591994A CN113339452B CN 113339452 B CN113339452 B CN 113339452B CN 202110591994 A CN202110591994 A CN 202110591994A CN 113339452 B CN113339452 B CN 113339452B
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- CN
- China
- Prior art keywords
- spring
- inner cylinder
- barrel
- cylinder
- inner barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
Abstract
The invention provides a communication optical cable protection device, which comprises an outer barrel, wherein an inner barrel is embedded in the outer barrel, and a spring is arranged between the outer barrel and the inner barrel; the spring is wound on the outer side of the inner cylinder, and the axis of the spring surrounds the outer side of the inner cylinder. The spring surrounds the outer side of the inner barrel, plays a role in protecting the inner barrel, namely, a metal protective layer with thick spring diameter is additionally arranged outside the inner barrel, when the device is used for erecting or burying an optical cable in the field, even if an animal bites the outer barrel, the inner barrel is difficult to damage by the animal due to the existence of the spring, so that the safety of the optical cable in the inner barrel is ensured, meanwhile, the spring is positioned between the inner barrel and the outer barrel and can play a role in buffering and shock absorption, when the outer barrel is extruded by external force, the spring can perform a certain amount of compression deformation in the radial direction of the spring, so that the extrusion energy is absorbed, and the optical cable in the inner barrel is prevented from being pressed and damaged.
Description
Technical Field
The invention relates to the technical field of communication equipment manufacturing, in particular to a communication optical cable protection device.
Background
The communication optical cable consists of a cable core consisting of a plurality of optical fibers and an outer protective layer, and the communication optical cable uses the optical fibers as a carrier and uses light waves as a transmission medium to carry out communication transmission. The transmission device has the characteristics of large transmission capacity, low attenuation, long transmission distance, small volume, light weight, no electromagnetic interference, low cost and the like. The method is widely applied to signal transmission of various departments such as electric power, telecommunication, broadcasting and the like at present, and tends to become a main body of a future communication network gradually. Because the optical cable is laid the environment complicacy, or the route mountain area woodland, or bury underground, whatever kind of laying mode, all inevitably suffer the bite of toy such as squirrel mouse to make communication optical cable structure destroyed, influence its life. In view of this, the present application is specifically made.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a communication optical cable protection device, wherein a spring arranged between an inner barrel and an outer barrel can prevent an animal from damaging an optical cable body, and the spring can prevent the outer barrel from extruding and damaging an optical cable arranged in the inner barrel after being stressed.
The embodiment of the invention is realized by the following technical scheme:
a communication optical cable protection device comprises an outer cylinder, wherein an inner cylinder is embedded in the outer cylinder, and a spring is arranged between the outer cylinder and the inner cylinder; the spring is wound on the outer side of the inner cylinder, and the axis of the spring surrounds the outer side of the inner cylinder.
According to a preferred embodiment, the outer cylinder is coaxial with the inner cylinder; the axis of the spring is spirally wound along the axial direction of the inner cylinder.
According to a preferred embodiment, a hook assembly for fixing the spring is provided on the outer wall of the inner barrel.
According to a preferred embodiment, the hook assembly at least comprises a hook body, the rear end of the hook body is connected to the outer wall of the inner cylinder, a clamping gap is formed between the front end of the hook body and the inner cylinder, and a clamping groove is arranged between the front end and the rear end of the hook body; and a limit screw rod penetrates through the front end of the hook body, and the axial direction of the limit screw rod is parallel to the radial direction of the inner cylinder.
According to a preferred embodiment, a slider is arranged on the spring; the sliding part at least comprises a mounting seat connected with the spring, and a rolling ball is arranged at the top end of the mounting seat and is abutted to the inner wall of the outer barrel.
According to a preferred embodiment, the bottom of the mounting seat is provided with a clamping interface, and the inner wall of the clamping interface is provided with a rubber anti-slip layer.
According to a preferred embodiment, the clamping interface comprises an annular clamping part, and the rubber anti-slip layer is distributed on the inner wall of the annular clamping part; a pressing groove communicated with the annular clamping part is formed in the bottom end of the mounting seat; and bolt assemblies are arranged on the mounting seat in a penetrating manner and distributed in the area of the pressing groove.
According to a preferred embodiment, a plurality of said hooking members are equally spaced along the axial direction of said inner cylinder.
According to a preferred embodiment, a plurality of said sliding elements are equally spaced in the axial direction of said inner barrel.
According to a preferred embodiment, the outer sleeve is provided with a moisture barrier.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
the spring arranged in the invention surrounds the outer side of the inner barrel and plays a role in protecting the inner barrel, and specifically, the spring surrounds the outer side of the inner barrel, namely, a layer of metal protective layer with thick spring diameter is added outside the inner barrel. Meanwhile, the spring is arranged between the inner cylinder and the outer cylinder, the buffering and shock absorption effects can be achieved, when the outer cylinder is extruded by external force, the spring can perform a certain amount of compression deformation in the radial direction of the spring, so that extrusion energy is absorbed, and the optical cable in the inner cylinder is prevented from being pressed and damaged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic view of the inner barrel of the present invention;
FIG. 3 is a cross-sectional view of section A-A of FIG. 2;
FIG. 4 is a schematic view of the structure of the sliding member of the present invention;
FIG. 5 is a cross-sectional view of section B-B of FIG. 4;
fig. 6 is a schematic structural view of a spring according to the present invention.
Icon: 1-sliding part, 11-mounting seat, 12-rolling ball, 13-nut, 14-locking screw rod, 15-pressing groove, 16-rubber antiskid layer, 17-annular clamping part, 2-spring, 3-moisture-proof layer, 4-outer cylinder, 5-inner cylinder, 6-hook component, 61-hook body and 62-limiting screw rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, a communication optical cable protection device includes an outer tube 4, an inner tube 5 embedded in the outer tube 4, and a spring 2 disposed between the outer tube 4 and the inner tube 5. The spring 2 is wound on the outer side of the inner cylinder 5, and the axis of the spring 2 is wound on the outer side of the inner cylinder 5. In this embodiment, the spring 2 surrounds the outer side of the inner barrel 5 to protect the inner barrel 5, specifically, the spring 2 surrounds the outer barrel 5, which is equivalent to adding a layer of metal protection layer with a thick diameter of the spring 2 outside the inner barrel 5, when the device is used to erect or embed an optical cable in the field, even if an animal bites the outer barrel 4, the inner barrel 5 is difficult to be damaged by the animal due to the existence of the spring 2, so as to ensure the safety of the optical cable in the inner barrel 5, meanwhile, the spring 2 is located between the inner barrel 5 and the outer barrel 4 to play a role of buffering and shock absorption, when the outer barrel 4 is extruded by an external force, the spring 2 can perform a certain amount of compression deformation in the radial direction of the spring 2, so as to absorb the extrusion energy, and avoid the optical cable in the inner barrel 5 from being pressed and damaged.
Further, as shown in fig. 1, the outer cylinder 4 is coaxial with the inner cylinder 5; preferably, the axis of the spring 2 is helically wound along the axial direction of the inner cylinder 5. The spring 2, as shown in fig. 6, is long in use and is a tension spring, which is convenient to wrap around the inside of the inner tube 5.
In this embodiment, a hook assembly 6 for fixing the spring 2 is provided on the outer wall of the inner cylinder 5. Specifically, as shown in fig. 2 and 3, the hook assembly 6 at least includes a hook body 61, the rear end of the hook body 61 is connected to the outer wall of the inner cylinder 5, a clamping gap is formed between the front end of the hook body 61 and the inner cylinder 5, and a clamping groove is configured between the front end and the rear end of the hook body 61. A limit screw 62 is provided at the front end of the hook body 61, and the axial direction of the limit screw 62 is parallel to the radial direction of the inner cylinder 5. When using, encircle spring 2 at the outer in-process of inner tube 5, can be fixed in the joint inslot after through the joint clearance with spring 2, then rotate stop screw 62, make its front end support lean on to inner tube 5 outer wall can, progressively fix spring 2 through couple subassembly 6, the winding construction of spring 2 of being convenient for can prevent that spring 2 from encircleing the maintenance of form, has improved the machining efficiency of device. Preferably, the plurality of hook assemblies 6 are equally spaced along the axial direction of the inner barrel 5.
In this embodiment, the slider 1 is disposed on the spring 2 in order to facilitate assembly of the device, that is, to nest the inner cylinder 5 and the outer cylinder 4. As shown in fig. 1, 4 and 5, the slider 1 includes at least a mounting seat 11 connected to the spring 2, a rolling ball 12 is rotatably mounted on a tip end of the mounting seat 11, and the rolling ball 12 abuts against an inner wall of the outer cylinder 4. When the device is assembled and installed, the spring 2 is fixed on the outer side of the inner cylinder 5 in a surrounding mode, then the sliding parts 1 are installed on the spring 2 in the axial direction and the circumferential direction of the inner cylinder 5 at equal intervals, then the assembled inner cylinder 5 is embedded into the outer cylinder 4, in the process, the rolling balls 12 are abutted to the inner wall of the outer cylinder 4 and slide in the process that the inner cylinder 5 axially moves along the outer cylinder 4, friction force is reduced, meanwhile, when the inner cylinder 5 moves relative to the outer cylinder 4 through the sliding parts 1 distributed along the circumferential direction of the inner cylinder 5, the inner cylinder 5 and the outer cylinder 4 are basically in a coaxial state, and therefore friction force between the inner cylinder 4 and the outer cylinder 4 is further reduced, and assembly efficiency of the device can be improved.
Further, as shown in fig. 4 and 5, a snap interface is disposed at the bottom of the mounting seat 11, and a rubber anti-slip layer 16 is disposed on the inner wall of the snap interface. In this embodiment, the clip interface includes an annular clip portion 17, and the rubber anti-slip layer 16 is distributed on the inner wall of the annular clip portion 17. A pressing groove 15 penetrating the annular engaging portion 17 is formed at the bottom end of the mounting seat 11. Bolt components penetrate through the mounting base 11 and are distributed in the area of the pressing groove 15. Specifically, when in use, the spring 2 is clamped in the annular clamping portion 17 through the pressing groove 15, the rubber anti-slip layer 16 increases the friction between the annular clamping portion 17 and the spring 2, so as to facilitate fixing, and in addition, as shown in fig. 4 and 5, the bolt assembly comprises a locking screw 14 and a nut 13, and the sliding part 1 is firmly fixed on the spring 2 through the matching of the locking screw 14 and the nut 13.
In this embodiment, a plastic moisture barrier 3 is provided around the outer tube 4 to prevent the device and the optical cable inside the device from being affected by moisture.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A communication optical cable protector which characterized in that: the device comprises an outer cylinder (4), an inner cylinder (5) is embedded in the outer cylinder (4), and a spring (2) is arranged between the outer cylinder (4) and the inner cylinder (5);
the spring (2) is wound on the outer side of the inner cylinder (5), and the axis of the spring (2) surrounds the outer side of the inner cylinder (5);
a sliding piece (1) is arranged on the spring (2); the sliding part (1) at least comprises an installation seat (11) connected with the spring (2), a rolling ball (12) is arranged at the top end of the installation seat (11), and the rolling ball (12) is abutted to the inner wall of the outer cylinder (4);
the bottom of the mounting seat (11) is provided with a clamping interface, and the inner wall of the clamping interface is provided with a rubber anti-skid layer (16);
the clamping interface comprises an annular clamping part (17), and the rubber anti-skid layer (16) is distributed on the inner wall of the annular clamping part (17);
a pressing groove (15) communicated with the annular clamping part (17) is formed in the bottom end of the mounting seat (11);
and bolt assemblies are arranged on the mounting base (11) in a penetrating manner and distributed in the area of the pressing groove (15).
2. The communications cable guard of claim 1, wherein: the outer cylinder (4) is coaxial with the inner cylinder (5);
the axis of the spring (2) is spirally wound along the axial direction of the inner cylinder (5).
3. The communications cable guard of claim 2, wherein: and a hook component (6) for fixing the spring (2) is arranged on the outer wall of the inner cylinder (5).
4. The communications cable guard of claim 3, wherein: the hook assembly (6) at least comprises a hook body (61), the rear end of the hook body (61) is connected to the outer wall of the inner cylinder (5), a clamping gap is formed between the front end of the hook body and the inner cylinder (5), and a clamping groove is formed between the front end and the rear end of the hook body (61);
a limit screw (62) penetrates through the front end of the hook body (61), and the axial direction of the limit screw (62) is parallel to the radial direction of the inner cylinder (5).
5. The communications cable guard of claim 3, wherein: a plurality of the hook components (6) are uniformly distributed along the axial direction of the inner barrel (5) at equal intervals.
6. The communications cable guard of claim 1, wherein: the sliding parts (1) are uniformly distributed along the axial direction of the inner barrel (5) at equal intervals.
7. The communications cable guard of claim 1, wherein: and a moisture-proof layer (3) is sleeved outside the outer cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591994.9A CN113339452B (en) | 2021-05-28 | 2021-05-28 | Communication optical cable protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110591994.9A CN113339452B (en) | 2021-05-28 | 2021-05-28 | Communication optical cable protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113339452A CN113339452A (en) | 2021-09-03 |
| CN113339452B true CN113339452B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110591994.9A Active CN113339452B (en) | 2021-05-28 | 2021-05-28 | Communication optical cable protector |
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| Country | Link |
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| CN (1) | CN113339452B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320788A (en) * | 1990-06-27 | 1994-06-14 | Siemens Aktiengesellschaft | Process for producing a plastic casing reinforced against tensile force |
| JP2011163436A (en) * | 2010-02-09 | 2011-08-25 | Fuji Latex Kk | Vibration control shock absorber |
| US8913862B1 (en) * | 2013-09-27 | 2014-12-16 | Corning Optical Communications LLC | Optical communication cable |
| CN104819239A (en) * | 2015-05-05 | 2015-08-05 | 徐州合卓电子技术有限公司 | Engineering vehicle and damping device |
| CN109994971A (en) * | 2019-04-08 | 2019-07-09 | 青岛科尼乐集团有限公司 | Taillight cable protecting device on a kind of X-type supporting leg pump truck rear support leg |
| CN211126932U (en) * | 2019-12-28 | 2020-07-28 | 苏州家乐喜电器制造有限公司 | High combined material cable protection pipe |
| CN112112924A (en) * | 2020-09-09 | 2020-12-22 | 徐培勤 | Electrically controlled intelligent anti-stumbling traction rope |
| CN112269230A (en) * | 2020-09-23 | 2021-01-26 | 芜湖腾飞信息科技有限公司 | Annular reinforcement resistance to compression optical cable |
| CN112563994A (en) * | 2020-12-11 | 2021-03-26 | 江西平高电器有限公司 | High-strength MPP power cable protection pipe and manufacturing method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4366365B2 (en) * | 2005-03-04 | 2009-11-18 | 有限会社サンテクノ | Isolation device |
| GB201502424D0 (en) * | 2015-02-13 | 2015-04-01 | First Subsea Ltd | Mounting device for an elongate flexible member |
| JP6356729B2 (en) * | 2016-06-03 | 2018-07-11 | 矢崎総業株式会社 | Wire harness |
| CN111697515B (en) * | 2020-05-22 | 2021-08-17 | 国网河北省电力有限公司石家庄市藁城区供电分公司 | Wall-penetrating sleeve with damping function for power cable arrangement |
| CN212510469U (en) * | 2020-08-10 | 2021-02-09 | 山东联盟特种装备有限公司 | Support arrangement for vertical low temperature storage tank |
| CN212849706U (en) * | 2020-09-14 | 2021-03-30 | 浙江驰讯管业有限公司 | Environment-friendly high-toughness PVC-U grid tube |
-
2021
- 2021-05-28 CN CN202110591994.9A patent/CN113339452B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320788A (en) * | 1990-06-27 | 1994-06-14 | Siemens Aktiengesellschaft | Process for producing a plastic casing reinforced against tensile force |
| JP2011163436A (en) * | 2010-02-09 | 2011-08-25 | Fuji Latex Kk | Vibration control shock absorber |
| US8913862B1 (en) * | 2013-09-27 | 2014-12-16 | Corning Optical Communications LLC | Optical communication cable |
| CN104819239A (en) * | 2015-05-05 | 2015-08-05 | 徐州合卓电子技术有限公司 | Engineering vehicle and damping device |
| CN109994971A (en) * | 2019-04-08 | 2019-07-09 | 青岛科尼乐集团有限公司 | Taillight cable protecting device on a kind of X-type supporting leg pump truck rear support leg |
| CN211126932U (en) * | 2019-12-28 | 2020-07-28 | 苏州家乐喜电器制造有限公司 | High combined material cable protection pipe |
| CN112112924A (en) * | 2020-09-09 | 2020-12-22 | 徐培勤 | Electrically controlled intelligent anti-stumbling traction rope |
| CN112269230A (en) * | 2020-09-23 | 2021-01-26 | 芜湖腾飞信息科技有限公司 | Annular reinforcement resistance to compression optical cable |
| CN112563994A (en) * | 2020-12-11 | 2021-03-26 | 江西平高电器有限公司 | High-strength MPP power cable protection pipe and manufacturing method |
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| CN113339452A (en) | 2021-09-03 |
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