CN210404670U - Three-span ADSS optical cable security fitting - Google Patents
Three-span ADSS optical cable security fitting Download PDFInfo
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- CN210404670U CN210404670U CN201920705866.0U CN201920705866U CN210404670U CN 210404670 U CN210404670 U CN 210404670U CN 201920705866 U CN201920705866 U CN 201920705866U CN 210404670 U CN210404670 U CN 210404670U
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- operating rod
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Abstract
The utility model discloses a three-span ADSS optical cable security hardware, one end of a hardware gland (2) is hinged with a hardware main body (1), and the other end is pressed on the hardware main body (1) through a compression screw (5); an eccentric wheel (8) is arranged on the hardware fitting main body (1), an optical cable groove formed by oppositely arranging a rim of the eccentric wheel (8) and an arc-shaped groove (10) on the hardware fitting gland (2) is clamped on an ADSS optical cable (4) close to an optical cable clamp (19); one end of the insulating rope (6) is connected to the hardware fitting through a pull ring (7), and the other end of the insulating rope (6) is connected to the cross arm (18); the broken optical cable can be fixed at the original position when the optical cable breaks, namely a pair of safety ropes is added for the three-span optical cable, the occurrence of major traffic accidents caused by falling when the optical cable breaks is avoided, and the potential safety hazard of the three-span optical cable is solved.
Description
Technical Field
The patent relates to an ADSS optical cable security fitting arranged along an overhead transmission line, in particular to a three-span ADSS optical cable security fitting.
Background
According to the ' three-span ' important anti-accident measure ' (trial run) (national grid operation check 2016-. The ADSS optical cable is also called an all-dielectric self-supporting optical cable, the all-dielectric optical cable is made of all-dielectric materials, and the self-supporting optical cable means that a self-reinforcing member of the optical cable can bear self weight and external loads. Because the ADSS optical cable is generally erected by using the tower of the high-voltage transmission line and parallel to the transmission line conductor, the ADSS optical cable also has to comply with the requirements of ' three-span ' major anti-accident measures for overhead transmission lines '.
The ADSS optical cable is generally hung on a tower cross arm through optical cable clamps (including strain clamps or suspension clamps), the wind deflection angle of the ADSS optical cable is very large under the condition of strong wind, and when the wind speed is 30m/s, the wind deflection angle of the ADSS optical cable can reach 80 degrees, and the wind deflection angle of a lead is only about half of that of the optical cable; transverse wind blows to the ADSS optical cable, and the ADSS optical cable can generate wind vibration; therefore, the ADSS optical cable is subjected to fatigue damage at a hanging point, the ADSS optical cable is broken at the outer side of the cable clamp, and the broken optical cable falls in a three-span area, so that large traffic safety accidents and large social influences are caused.
In recent years, three-span optical cable breakage accidents occur all over the country, for example, in Jiangsu province, the three-span optical cable breakage accidents occur several times in the whole province range, and the traffic safety is threatened. One of the problems is that the optical cable falls due to accumulated snow in Jiangsu province, so that the normal operation of the electrified railway is seriously influenced, and the power grid and the society are seriously influenced. Therefore, Jiangsu electric power saving company requires that all three-span ADSS optical cables in each region need to be completely modified, and the current modification scheme mainly comprises the steps of tube penetration and underground burying or modification into OPGW optical cable penetration. However, in any of the reforming methods, the construction resistance is very high due to the problems of difficulty in construction, high construction cost and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at designing a "three stride" ADSS optical cable security hardware fittings, can fix the optical cable that breaks at original position when the optical cable breaks off, increase a pair safety rope for "three strides" ADSS optical cable in other words, stop the emergence of optical cable fracture time because of falling initiation major traffic accident, solve "three strides" optical cable potential safety hazard.
The technical scheme of the utility model is that: the three-span ADSS optical cable security fitting is characterized in that: one end of the hardware fitting gland is hinged with the hardware fitting main body, and the other end of the hardware fitting gland is tightly pressed on the hardware fitting main body through a compression screw; the metal fitting main body is provided with an eccentric wheel, arc-shaped grooves are respectively arranged on a metal fitting gland and a rim of the eccentric wheel, the arc of each arc-shaped groove is matched with the outer diameter of the ADSS optical cable, the eccentric wheel rim and the arc-shaped grooves on the metal fitting gland are oppositely arranged to form an optical cable groove, and the optical cable groove is clamped on the ADSS optical cable close to the optical cable clamp; when the eccentric wheel rotates in the direction far away from the optical cable clamp, the gap between the rim of the eccentric wheel and the arc-shaped groove on the hardware fitting gland is reduced, and the optical cable groove is tightly clamped on the ADSS optical cable; one end of the insulating rope is connected to the hardware fitting through a pull ring, and the other end of the insulating rope is connected to the cross arm; a threaded hole for bolt connection is arranged on the end face of the hardware fitting main body facing the optical cable clamp;
the hardware fitting main body and the hardware fitting gland are hinged through a pin shaft, the axis of the pin shaft is parallel to the ADSS optical cable, an external thread is arranged at one end of the pin shaft, which is far away from the optical cable clamp, a positioning nut is connected onto the external thread, an internal thread is arranged at the other end of the pin shaft, and a pull ring is connected to the end, which faces the optical cable clamp, of the pin shaft through a thread;
the tool comprises an insulating operating rod, a connecting block and a double-end screw, wherein the insulating operating rod, the connecting block and the double-end screw are rigidly connected in sequence; one end of the insulating operating rod is an external thread end, and the other end of the insulating operating rod is connected with an internal thread quick connector; one end of the connecting block is provided with an internal thread hole, the connecting block is in threaded connection with one end of the double-head screw through the internal thread hole, the other end of the connecting block is connected with an internal thread quick connector, and the connecting block is connected with an external thread end of the insulating operating rod through the internal thread quick connector at the end part of the connecting block; the other end of the double-head screw is matched with a threaded hole for connecting the screw on the hardware fitting main body;
the tool further comprises a lengthened operating rod and ratchet wrench combined tool which consists of an insulating operating rod, a connecting block and a ratchet wrench which are rigidly connected in sequence, an operator can tighten two compression screws on the hardware gland on the tower through the lengthened operating rod and ratchet wrench combined tool, so that the hardware gland is fastened with the hardware main body through the two compression screws, and the optical cable slot is clamped on the ADSS optical cable; one end of the insulating operating rod is an external thread end, and the other end of the insulating operating rod is connected with an internal thread quick connector; the handle of the ratchet wrench is provided with external threads; one end of the connecting block is provided with an internal thread hole which is connected with an external thread on the ratchet wrench handle through a thread hole, the other end of the connecting block is connected with an internal thread quick connector, and the connecting block is connected with an external thread end of the insulating operating rod through the internal thread quick connector at the end part of the connecting block;
the utility model has the advantages that: the security hardware does not bear the weight of the optical cable in the normal state of the optical cable, but can bear the whole weight of the optical cable when the optical cable is broken, so that traffic, electric power and communication safety accidents caused by falling of the optical cable are avoided; the security hardware fitting has simple structure and convenient operation and use; the problems of difficulty in optical cable, difficulty in construction, high transformation cost and the like in three-span rectification engineering are solved.
Drawings
FIG. 1: a front view of the connection state of the optical cable security hardware fitting and the optical cable;
FIG. 2: a right view of the connection state of the optical cable security hardware fitting and the optical cable (the pull ring is removed);
FIG. 3: a fitting gland front view;
FIG. 4: a right view of the fitting gland;
FIG. 5: a main view of the hardware fitting main body;
FIG. 6: a bottom view of the hardware fitting main body;
FIG. 7: the structure schematic diagram of the insulating operating rod;
FIG. 8: the structure of the connecting block is schematic;
FIG. 9: the ratchet wrench has a structural schematic diagram:
FIG. 10: the structural schematic diagram of the special tool for connecting the screw rod of the lengthened operating rod is shown;
FIG. 11: the structure schematic diagram of the lengthened operating rod ratchet wrench combined tool;
FIG. 12: the patent refers to the field of 'optical cables'.
In the figure, 1-a hardware main body, 2-a hardware gland, 3-a pin shaft, 4-an ADSS optical cable, 5-a compression screw, 6-an insulating rope, 7-a pull ring, 8-an eccentric wheel, 9-a compression screw connecting hole, 10-an arc groove, 11-a compression screw threaded hole, 12-an insulating operating rod, 13-an external thread end, 14-an internal thread quick-connection joint, 15-a connecting block, 16-a double-head screw rod, 17-a ratchet wrench, 18-a cross arm, 19-an optical cable clamp, 20-a vibration damper and 21-a screw threaded hole for screw rod connection.
Detailed Description
The following detailed description of the present patent refers to the accompanying drawings and detailed description.
As shown in fig. 1, fig. 2, and fig. 12, the three-span ADSS optical cable security fitting of the present patent includes a fitting main body 1, a fitting gland 2, an insulating rope 6, and the like, wherein one end of the fitting gland 2 is hinged to the fitting main body 1, and the other end is pressed against the fitting main body 1 by two pressing screws 5; an eccentric wheel 8 is arranged on a hardware fitting main body 1, an arc groove 10 is arranged on a rim of the eccentric wheel 8, the connecting surface of a hardware fitting gland 2 and the hardware fitting main body 1 is provided with the arc groove 10, the rim of the eccentric wheel 8 is also provided with the arc groove 10 corresponding to the arc groove 10 on the hardware fitting gland 2, the section arc of the arc groove 10 is matched with the outer diameter of an ADSS optical cable 4, the rim of the eccentric wheel 8 and the arc groove 10 on the hardware fitting gland 2 are oppositely arranged to form an optical cable groove, a gap is left between the rim of the eccentric wheel 8 and the arc groove 10 on the hardware fitting gland 2, the optical cable groove is clamped on the ADSS optical cable 4 close to an optical cable clamp 19, according to past accident experience and theoretical analysis, the optical cable groove is clamped at a distance of about 80 to 100 millimeters from the end part of the optical cable clamp 19, and the gap between the optical cable groove and the ADSS optical cable 4 is adjusted by adjusting the gap between, thereby adjusting the clamping tightness degree of the ADSS optical cable 4 in the cable groove. Determining a gap between a rim of the eccentric wheel 8 and an arc-shaped groove 10 on the hardware fitting gland 2 by selecting the position of a rotating shaft of the eccentric wheel 8 according to the diameter of the ADSS optical cable 4 in advance, so that the ADSS optical cable 4 is clamped in an optical cable groove; when the eccentric wheel 8 rotates in the direction far away from the optical cable clamp 19, the gap between the rim of the eccentric wheel 8 and the arc-shaped groove 10 on the hardware gland 2 becomes small, the optical cable groove is tightly clamped on the ADSS optical cable 4, and otherwise, the ADSS optical cable 4 becomes loose in the optical cable groove;
the hardware fitting main body 1 and the hardware fitting gland 2 are hinged through a pin shaft 3, the axis of the pin shaft 3 is parallel to the ADSS optical cable 4, one end of the pin shaft 3, which is far away from the optical cable clamp 19, is provided with an external thread, the external thread is connected with a positioning nut, the other end of the pin shaft 3 is provided with an internal thread, and the pull ring 7 is connected to the end part of the pin shaft 3, which faces the optical cable clamp 19, through threads; one end of the insulating rope 6 is connected to the hardware fitting through a pull ring 7, and the other end of the insulating rope 6 is connected to the cross arm 18;
as shown in fig. 3 and 4, one end of the fitting gland 2 is provided with a half hinge seat on the fitting main body 1, the other end of the fitting gland is provided with a hold-down screw connecting hole 9, an arc-shaped groove 10 is arranged on a surface opposite to the fitting main body 1 in the middle, the hold-down screw connecting hole 9 is a through hole, and a part of threads are arranged on the through hole and used for pre-connecting the hold-down screw 5 on the fitting gland 2 in advance, so that the fitting gland can be conveniently installed and operated at high.
As shown in fig. 5 and 6, the other half hinge seat matched with the half hinge seat on the fitting gland 2 is arranged on one side of the top surface of the fitting main body 1, and is matched with the fitting gland 2 to form hinge joint; a threaded hole 21 for screw connection is arranged on the end surface of the hardware fitting main body 1 facing the optical cable clamp 19; two screw holes 11 for the hold-down screws are arranged on the connecting surface of the hardware fitting main body 1 and the hardware fitting gland 2, and the hardware fitting gland 2 is fastened and pressed on the hardware fitting main body 1 through the two hold-down screws 5.
The hardware fitting gland 2, the hardware fitting main body 1 and the eccentric wheel 8 are made of titanium alloy or aluminum alloy, so that the weight is light; the insulating rope 6 is made of aramid fiber.
As shown in fig. 7, the middle insulation part of the insulation operating rod 12 is generally made of bakelite, epoxy glass plastic pipe material, the length of a single insulation part is 1 to 2 meters, the insulation part accounts for more than 80 percent of the total length, and the insulation material is required to be high-pressure resistant, high in strength, moisture-proof and light in weight, and can be independently operated by one person; the two ends of the insulating operating rod 12 are metal joints, the metal joints at the two ends are fixedly connected with the insulating rod in a crimping and riveting mode, one metal joint at one end is an external thread end 13, a structure matched with an internal thread quick joint 14 is arranged on the metal joint at the other end, the metal joint is connected with the internal thread quick joint 14 to form a quick joint, and the internal thread quick joint 14 is connected with the external thread end of another insulating operating rod 12, so that the insulating operating rod is combined and lengthened.
As shown in fig. 10, the special tool for connecting the lengthened operating rod screw consists of an insulating operating rod 12, a connecting block 15 and a double-head screw 16 which are rigidly connected in sequence, and is used for moving the hardware main body 1 and the hardware gland 2 connecting body to the outer side of the optical cable clamp 19 and clamping the optical cable groove formed by the hardware main body 1 and the hardware gland 2 on the ADSS optical cable 4 by an operator on a tower through the special tool for connecting the lengthened operating rod screw; as shown in fig. 8, one end of the connecting block 15 is provided with an internal threaded hole through which one end of the double-headed screw 16 is threadedly coupled; the other end of the connecting block 15 is provided with a structure matched with the internal thread quick connector 14 and connected to the internal thread quick connector 14, and the connecting block 15 is connected with the external thread end 13 of the insulating operating rod 12 through the internal thread quick connector 14 at the end part of the connecting block 15; the other end of the double-end screw 16 is matched with a threaded hole 21 for screw connection on the hardware fitting main body 1;
as shown in fig. 11, the lengthened operating rod and ratchet wrench combination tool is composed of an insulating operating rod 12, a connecting block 15 and a ratchet wrench 17 which are rigidly connected in sequence, an operator tightens two compression screws 5 on the fitting gland 2 on a tower through the lengthened operating rod and ratchet wrench combination tool, so that the fitting gland 2 and the fitting main body 1 are tightened through the two compression screws 5, and the optical cable slot is pressed on the ADSS optical cable 4; as shown in fig. 9, the handle of the ratchet wrench 17 is provided with an external thread, which is modified from a common ratchet wrench; one end of the connecting block 15 is provided with an internal thread hole, the connecting block is connected with an external thread on the handle of the ratchet wrench 17 through the internal thread hole, the other end of the connecting block 15 is connected with an internal thread quick-connection joint 14, and the connecting block 15 is connected with an external thread end 13 of the insulating operating rod 12 through the internal thread quick-connection joint 14 at the end part of the connecting block; the sleeve on the ratchet wrench 17 is matched with the head hexagon of the compression screw 5 on the hardware gland 2.
The use method of the three-span ADSS optical cable security fitting comprises the following steps:
firstly, connecting a pull ring 7 to the end part of a pin shaft of a hardware tool formed after a hardware tool main body 1 and a hardware tool gland 2 are hinged, pre-connecting a compression screw 5 to the hardware tool gland 2, connecting one end of an insulating rope 6 to the pull ring 7, preparing a lengthening operation rod screw rod connection special tool and a lengthening operation rod ratchet wrench combined tool, and carrying the hardware tool, the lengthening operation rod screw rod connection special tool and the lengthening operation rod ratchet wrench combined tool to climb a tower;
the special tool for connecting the lengthened operating rod screw rod is connected to a screw rod connecting threaded hole 21 on the hardware fitting through a double-end screw 16 at the end part of the special tool, the hardware fitting is lifted up by using an insulating operating rod 12 and sent to an ADSS optical cable 4 at the outer side of an optical cable clamp, firstly, an arc groove on the rim of an eccentric wheel 8 on a hardware fitting main body 1 is clamped on the ADSS optical cable 4, and a hardware fitting gland 2 is shifted to be buckled on the hardware fitting main body 1 through a combined tool of a lengthened operating rod ratchet wrench; then, a lengthened operating rod ratchet wrench is used for screwing the compression screw 5, so that the optical cable trunking is clamped on the ADSS optical cable 4; then reversely rotating the screw rod of the lengthened operating rod to connect with a special tool to retreat;
and finally, connecting the other end of the insulating rope 6 to a cross arm 18 of a tower, and straightening the insulating rope 6.
As shown in fig. 12, which is a schematic view of the working state of the optical cable security fitting, the fitting is clamped on the ADSS optical cable 4 outside the optical cable clamp 19, the fitting is located between the vibration damper 20 and the optical cable clamp 19, and the vibration damper 20 is spiral and clamped on the ADSS optical cable 4 to prevent and attenuate vibration of the optical cable under the action of laminar wind. After the ADSS optical cable 4 is in service for a long time, fatigue fracture occurs at the joint of the ADSS optical cable 4 and the optical cable clamp 19, the fractured ADSS optical cable 4 is separated from the optical cable clamp 19 under the action of tension and gravity, so that the eccentric wheel 8 on the hardware fitting main body 1 slightly rotates away from the optical cable clamp 19, the ADSS optical cable 4 is fastened in an optical cable groove of the hardware fitting, and the hardware fitting is connected to the cross arm 18 through the insulating rope 6, so that the fractured ADSS optical cable 4 cannot directly fall from the air and is basically fixed at the original position, and the occurrence of major traffic and other electric power safety accidents caused by falling when the optical cable is fractured is avoided. The optical cable clamp 19 in this embodiment is a suspension clamp, and the same is true for a strain clamp.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
- "three span" ADSS optical cable security gold utensil, characterized by: one end of the hardware fitting gland (2) is hinged with the hardware fitting main body (1), and the other end of the hardware fitting gland is tightly pressed on the hardware fitting main body (1) through a compression screw (5); an eccentric wheel (8) is arranged on the hardware fitting main body (1), arc-shaped grooves (10) are respectively arranged on the hardware fitting gland (2) and the rim of the eccentric wheel (8), the arcs of the arc-shaped grooves (10) are matched with the outer diameter of the ADSS optical cable (4), optical cable grooves formed by the relative arrangement of the rim of the eccentric wheel (8) and the arc-shaped grooves (10) on the hardware fitting gland (2) are clamped on the ADSS optical cable (4) close to the cable clamp (19); when the eccentric wheel (8) rotates in the direction far away from the optical cable clamp (19), the gap between the rim of the eccentric wheel (8) and the arc-shaped groove (10) on the hardware gland (2) is reduced, and the optical cable groove is tightly clamped on the ADSS optical cable (4); one end of the insulating rope (6) is connected to the hardware fitting through a pull ring (7), and the other end of the insulating rope (6) is connected to the cross arm (18); a bolt connection threaded hole (21) is formed in the end surface of the fitting body (1) facing the cable clamp (19).
- 2. The three-span ADSS optical cable security fitting of claim 1, wherein: the hardware fitting main body (1) and the hardware fitting gland (2) are hinged through a pin shaft (3), the axis of the pin shaft (3) is parallel to an ADSS optical cable (4), an external thread is arranged at one end, far away from the optical cable clamp (19), of the pin shaft (3), a positioning nut is connected onto the external thread, an internal thread is arranged at the other end of the pin shaft (3), and a pull ring (7) is connected to the end, facing the optical cable clamp (19), of the pin shaft (3) through the thread.
- 3. The three-span ADSS optical cable security fitting of claim 1, wherein: the device is characterized by further comprising a special lengthened operating rod screw rod connection tool consisting of an insulating operating rod (12), a connecting block (15) and a double-head screw rod (16) which are rigidly connected in sequence, and an operator moves the hardware to the outer side of the optical cable clamp (19) on the tower through the special lengthened operating rod screw rod connection tool and enables the optical cable trunking to be clamped on the ADSS optical cable (4); one end of the insulating operating rod (12) is an external thread end (13), and the other end is connected with an internal thread quick connector (14); one end of the connecting block (15) is provided with an internal thread hole, the connecting block is in threaded connection with one end of the double-threaded screw (16) through the internal thread hole, the other end of the connecting block (15) is connected with an internal thread quick connector (14), and the connecting block (15) is connected with an external thread end (13) of the insulating operating rod (12) through the internal thread quick connector (14) at the end part of the connecting block; the other end of the double-end screw (16) is matched with a threaded hole (21) for connecting the screw on the hardware fitting main body (1).
- 4. The three-span ADSS optical cable security fitting of claim 1, wherein: the tool is characterized by further comprising a lengthened operating rod ratchet wrench combination tool which consists of an insulating operating rod (12), a connecting block (15) and a ratchet wrench (17) which are rigidly connected in sequence, an operator can tighten two compression screws (5) on the hardware gland (2) on a tower through the lengthened operating rod ratchet wrench combination tool, so that the hardware gland (2) and the hardware main body (1) are fastened through the two compression screws (5), and the optical cable slot is pressed on the ADSS optical cable (4); one end of the insulating operating rod (12) is an external thread end (13), and the other end is connected with an internal thread quick connector (14); the handle of the ratchet wrench (17) is provided with external threads; one end of the connecting block (15) is provided with an internal thread hole, the connecting block is connected with an external thread on the handle of the ratchet wrench (17) through a thread hole, the other end of the connecting block (15) is connected with an internal thread quick connector (14), and the connecting block (15) is connected with an external thread end (13) of the insulating operating rod (12) through the internal thread quick connector (14) at the end part of the connecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920705866.0U CN210404670U (en) | 2019-05-17 | 2019-05-17 | Three-span ADSS optical cable security fitting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920705866.0U CN210404670U (en) | 2019-05-17 | 2019-05-17 | Three-span ADSS optical cable security fitting |
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| Publication Number | Publication Date |
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| CN210404670U true CN210404670U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920705866.0U Active CN210404670U (en) | 2019-05-17 | 2019-05-17 | Three-span ADSS optical cable security fitting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416956A (en) * | 2019-05-17 | 2019-11-05 | 国网江苏省电力有限公司徐州供电分公司 | Three across ADSS optical cables security personnel fittings |
-
2019
- 2019-05-17 CN CN201920705866.0U patent/CN210404670U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416956A (en) * | 2019-05-17 | 2019-11-05 | 国网江苏省电力有限公司徐州供电分公司 | Three across ADSS optical cables security personnel fittings |
| CN110416956B (en) * | 2019-05-17 | 2023-10-13 | 国网江苏省电力有限公司徐州供电分公司 | Three span ADSS optical cable safety hardware |
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