Power system overhead line optical fiber composite ground wire anti-falling connection piece

Abstract

The invention relates to an electric power system overhead line optical fiber composite ground wire anti-falling connection piece which comprises a connection body, an optical fiber composite ground wire is placed in the connection body, the connection body comprises a first clamping piece and a second clamping piece which are symmetrically arranged, and the first clamping piece and the second clamping piece each comprise a wire clamping base. An arm sleeve is fixedly arranged on the outer side of the wire clamping seat, a top frame is hinged to the interior of the wire clamping seat, a wire pressing plate is arranged at the top of the top frame, an extending arm is movably arranged in the arm sleeve, the extending arm is hinged to the bottom of the top frame through a connecting sleeve, a clamping device is arranged at the end, away from the wire clamping seat, of the extending arm, and the optical fiber composite ground wire penetrates through the clamping device. An anti-falling assembly is arranged between the first clamping piece and the second clamping piece; through double guarantee of mechanical self-locking and electronic early warning, the device effectively reduces the risk of falling off of the connection point of the optical fiber composite ground wire, and remarkably reduces power grid faults caused by wire breakage accidents.

Description

Technical Field

[0001] The invention belongs to the technical field of power line auxiliary equipment, and in particular relates to an anti-dropout connecting piece for an optical fiber composite ground wire of an overhead line of a power system. Background Art

[0002] An overhead fiber-optic composite ground wire utilizes a transmission line. It consists of a tubular structure containing one or more optical cables, surrounded by a steel and aluminum outer shell. It serves both grounding and communication purposes. Fiber-optic composite ground wires for overhead lines provide both ground protection and fiber-optic communication. Their reliability directly impacts grid security and communication stability.

[0003] When the fiber-optic composite ground wire of an overhead line between towers is damaged and broken, a wire clamp is often used to secure the broken section to avoid replacing the entire fiber-optic composite phase conductor in the tension section and to reduce capital costs and labor. Conventional wire clamps have poor ability to withstand lateral stress, resulting in a weak connection that can easily loosen and cause secondary breakage, further damaging the overhead line. Furthermore, there is no early warning mechanism for loosening clamps, and most failures occur between routine inspections, leading to passive repairs only after the line is interrupted. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to solve the problems raised in the above technical background.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an anti-drop-out connector for an overhead optical fiber composite ground wire of an electric power system, comprising a connecting body, an optical fiber composite ground wire placed inside the connecting body, the connecting body comprising a first clamp and a second clamp symmetrically arranged, the first clamp and the second clamp both comprising a wire clamping seat, an arm sleeve fixedly arranged on the outside of the wire clamping seat, a top frame hingedly arranged inside the wire clamping seat, a wire pressing plate arranged on the top of the top frame, an extension arm movably arranged inside the arm sleeve, the extension arm being hinged to the bottom of the top frame through a connecting sleeve, a clamp provided at one end of the extension arm away from the wire clamping seat, the optical fiber composite ground wire passes through the clamp, and an anti-drop-out component is arranged between the first clamp and the second clamp.

[0006] The shapes of the pressure plate and the clamp are matched with the optical fiber composite ground wire. The pressure plate is provided with a groove inside, and the clamp can be further provided with a rubber liner inside, which can enhance the clamping force and protect the optical fiber composite ground wire at the same time.

[0007] The anti-slip assembly includes a positioning portion and a gripping claw portion, wherein the positioning portion is fixedly arranged on the inner side of the first clamping member, and the gripping claw portion is fixedly arranged on the inner side of the second clamping member.

[0008] The positioning portion is provided with a concave ring, and the gripping portion is provided with an inner rod on the side close to the positioning portion. The inner rod is provided with a bracket, and a claw is hingedly provided inside the bracket. The claw has a claw head on one end close to the positioning portion. The claw head cooperates with the concave ring and can be directly engaged with the inside of the concave ring.

[0009] The brackets and the clamping claws are evenly and symmetrically distributed on the outer side of the inner rod. The brackets and the clamping claws can be provided in multiple groups to provide a stable clamping force.

[0010] A driving mechanism is provided on the outside of the gripping claw part, and the driving mechanism includes a conical block and a corner rod. The conical block is movably connected to the inner rod, and the end of the claw away from the claw head is clamped with the conical block. The corner rod is hinged to the outside of the second clamp through a fixed axis, and a horizontal rod is provided on the right side of the corner rod. A hanging pin is fixedly provided on the outside of the wire pressing plate, and the hanging pin is penetrated and clamped with the horizontal rod. An oblique push rod is provided on the left side of the corner rod.

[0011] The surface of the conical block is provided with a limiting groove, and the end of the clamping claw is provided with a limiting rod. The clamping claw is inserted into the limiting groove through the limiting rod to prevent the clamping claw from being separated from the conical block.

[0012] An early warning component is provided on the upper side of the connecting body. The early warning component includes a front block and a rear block. The front block is fixed to the first clamping member, and the rear block is fixed to the second clamping member.

[0013] A ring is fixedly provided on the upper side of the front block, a pressure rod is hingedly provided on the upper side of the rear block, an early warning device is provided at the end of the pressure rod, a fixed contact is provided on the outside of the early warning device, a slide groove is provided on the surface of the pressure rod, a slider is clamped inside the slide groove, a spring is provided between the slider and the slide groove, a movable contact is provided on the outside of the slider, and the positions of the movable contact and the fixed contact correspond to each other.

[0014] The upper side of the collar is clamped with a movable cover plate, which can be used to open the collar so that the pressure rod can be put into and taken out of the collar.

[0015] The present invention provides an anti-dropout connector for optical fiber composite ground wires of overhead power lines in a power system, which has the following beneficial effects: The clamp and pressure plate in this device form a dual fixed structure, and the top frame, connecting sleeve, and extension arm achieve adaptive clamping, evenly distributing contact stress and avoiding the risk of localized crushing. Furthermore, the grooved pressure plate and rubber-lined clamp effectively prevent the optical fiber composite ground cable from slipping.

[0016] The self-locking anti-slip assembly features a mechanical interlock between the positioning ring and the gripping claw, while the tapered retaining groove and the gripping claw limiter ensure secure connection even under extreme operating conditions. The corner rod amplifies the slightest displacement of the clamping pin into the gripping claw's tightening force, reducing operational effort.

[0017] The early warning component features intelligent warning functionality. During normal operation, the pressure rod is locked into the collar, maintaining a safe distance between the fixed and moving contacts. If the connection breaks or separates, the moving and fixed contacts come into contact, triggering the early warning device to activate and send a remote alarm signal, enabling prompt inspection and repair.

[0018] This device utilizes a symmetrical structure with first and second clamps, simplifying on-site installation and enabling quick assembly without the need for special tools. Mechanical self-locking and electronic warning systems effectively minimize the risk of disconnection at the fiber-optic composite ground wire connection point, significantly reducing grid failures caused by disconnections. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an overall structural diagram of an anti-dropout connector for optical fiber composite ground wires in an overhead line of a power system according to the present invention.

[0020] Figure 2 This is a diagram showing the internal structure of a wire clamping seat of an anti-dropout connector for an optical fiber composite ground wire of an overhead line of a power system according to the present invention.

[0021] Figure 3 This is a structural diagram of an anti-dropout component of an anti-dropout connector for an optical fiber composite ground wire of an overhead line of a power system according to the present invention.

[0022] Figure 4 The present invention is a front view of a driving mechanism of an anti-dropout connector for an optical fiber composite ground wire of an overhead line of a power system.

[0023] Figure 5 The present invention is a cross-sectional view of a tapered block of an anti-dropout connector for an optical fiber composite ground wire of an overhead line of a power system.

[0024] Figure 6 This is a structural diagram of an early warning component of an anti-dropout connector for an optical fiber composite ground wire of an overhead line of a power system according to the present invention.

[0025] In the figure: 1. First clamp; 2. Second clamp; 3. Fiber optic composite ground wire; 4. Wire clamp seat; 5. Arm sleeve; 6. Top frame; 7. Wire pressing plate; 8. Extended arm; 9. Connecting sleeve; 10. Clamp; 11. Anti-slip assembly; 12. Positioning part; 13. Gripping claw; 14. Concave ring; 15. Inner rod; 16. Bracket; 17. Claw; 18. Claw head; 19. Conical block; 20. Corner rod; 21. Fixed axis; 22. Hanging pin; 23. Horizontal rod; 24. Oblique push rod; 25. Limiting groove; 26. Limiting rod; 27. Warning assembly; 28. Front block; 29. ​​Rear block; 30. Ring; 31. Pressure rod; 32. Warning device; 33. Fixed contact; 34. Slide groove; 35. Slider; 36. Moving contact; 37. Spring; 38. Movable cover. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention. Example 1

[0027] See also Figures 1 to 2 , an anti-dropout connector for optical fiber composite ground wire of overhead line of power system, comprising a connecting body, an optical fiber composite ground wire 3 is placed inside the connecting body, the connecting body comprises a first clamping component 1 and a second clamping component 2 arranged symmetrically, the first clamping component 1 and the second clamping component 2 both comprise a wire clamping seat 4, an arm sleeve 5 is fixedly provided on the outside of the wire clamping seat 4, a top frame 6 is hingedly provided inside the wire clamping seat 4, a wire pressing plate 7 is provided on the top of the top frame 6, an extension arm 8 is movably provided inside the arm sleeve 5, the extension arm 8 is hinged to the bottom of the top frame 6 through a connecting sleeve 9, a clamp 10 is provided at the end of the extension arm 8 away from the wire clamping seat 4, the optical fiber composite ground wire 3 passes through the clamp 10, and an anti-dropout component 11 is provided between the first clamping component 1 and the second clamping component 2.

[0028] For better results, the shapes of the pressing plate 7 and the clamp 10 are matched with the optical fiber composite ground wire 3. The pressing plate 7 is provided with a groove inside, and the clamp 10 can be further provided with a rubber liner inside to enhance the clamping force while protecting the optical fiber composite ground wire 3.

[0029] When the device is in use, the first clamp 1 and the second clamp 2 are symmetrically placed on both sides of the optical fiber composite ground wire 3, and the positions of the first clamp 1 and the second clamp 2 are calibrated and aligned. The mobile arm 8 extends outward along the inner rail of the arm sleeve 5, driving the clamp 10 to fit the surface of the optical fiber composite ground wire 3, and clamping the clamp 10 and the optical fiber composite ground wire 3. Under the action of the gravity of the optical fiber composite ground wire 3 itself, the arm 8 is driven to stretch, and then the top frame 6 is driven to rotate around the hinge point through the sleeve 9, so that the pressure plate 7 is close to the optical fiber composite ground wire 3, forming an initial clamping force. The clamp 10 and the pressure plate 7 both have a clamping force on the optical fiber composite ground wire 3 to avoid stress concentration. The first clamp 1 and the second clamp 2 are connected and fixed to each other by the anti-slip assembly 11, and the stress at the joint is transferred between the first clamp 1, the second clamp 2 and the anti-slip assembly 11, further reducing the risk of breakage at the joint. Example 2

[0030] See also Figures 1 to 5, an anti-dropout connector for optical fiber composite ground wire of overhead line of power system, comprising a connecting body, an optical fiber composite ground wire 3 is placed inside the connecting body, the connecting body comprises a first clamping component 1 and a second clamping component 2 arranged symmetrically, the first clamping component 1 and the second clamping component 2 both comprise a wire clamping seat 4, an arm sleeve 5 is fixedly provided on the outside of the wire clamping seat 4, a top frame 6 is hingedly provided inside the wire clamping seat 4, a wire pressing plate 7 is provided on the top of the top frame 6, an extension arm 8 is movably provided inside the arm sleeve 5, the extension arm 8 is hinged to the bottom of the top frame 6 through a connecting sleeve 9, a clamp 10 is provided at the end of the extension arm 8 away from the wire clamping seat 4, the optical fiber composite ground wire 3 passes through the clamp 10, and an anti-dropout component 11 is provided between the first clamping component 1 and the second clamping component 2.

[0031] For better results, the shapes of the pressing plate 7 and the clamp 10 are matched with the optical fiber composite ground wire 3. The pressing plate 7 is provided with a groove inside, and the clamp 10 can be further provided with a rubber liner inside to enhance the clamping force while protecting the optical fiber composite ground wire 3.

[0032] For better effect, the anti-slip component 11 includes a positioning portion 12 and a gripping portion 13 . The positioning portion 12 is fixedly arranged on the inner side of the first clamping member 1 , and the gripping portion 13 is fixedly arranged on the inner side of the second clamping member 2 .

[0033] For better effect, the surface of the positioning portion 12 is provided with a concave ring 14, and the gripping portion 13 is provided with an inner rod 15 on the side close to the positioning portion 12. The surface of the inner rod 15 is provided with a bracket 16, and a claw 17 is hingedly provided inside the bracket 16. The claw 17 is provided with a claw head 18 at one end close to the positioning portion 12. The claw head 18 cooperates with the concave ring 14 and can be directly engaged with the inside of the concave ring 14.

[0034] For better effect, the brackets 16 and the claws 17 are evenly and symmetrically distributed outside the inner rod 15. The brackets 16 and the claws 17 can be provided in multiple groups to provide a stable clamping force.

[0035] For better effect, a driving mechanism is provided on the outside of the gripping claw part 13, and the driving mechanism includes a conical block 19 and a corner rod 20. The conical block 19 is movably connected to the inner rod 15, and the end of the claw 17 away from the claw head 18 is clamped with the conical block 19. The corner rod 20 is hinged to the outside of the second clamping part 2 through a fixed axis 21. A horizontal rod 23 is provided on the right side of the corner rod 20, and a hanging pin 22 is fixedly provided on the outside of the wire pressing plate 7. The hanging pin 22 is penetrated and clamped with the horizontal rod 23, and an inclined push rod 24 is provided on the left side of the corner rod 20.

[0036] For better effect, the surface of the conical block 19 is provided with a limiting groove 25, and the end of the clamping claw 17 is provided with a limiting rod 26. The clamping claw 17 is inserted into the limiting groove 25 through the limiting rod 26 to prevent the clamping claw 17 from being separated from the conical block 19.

[0037] In one of the embodiments, further, the structure of the anti-slip assembly 11 is preferably used to align the gripping claw portion 13 on the inner side of the second clamping member 2 with the positioning portion 12 of the first clamping member 1, so that the claw head 18 of the clamping claw 17 is inserted into the inside of the concave ring 14. In actual use, the greater the stress on the connection of the optical fiber composite ground wire 3 and the greater the deformation, the further the optical fiber composite ground wire 3 drives the clamp 10 away from the clamping seat 4. Similarly, the clamp 10 drives the top frame 6 to rotate through the extension arm 8, so that the wire pressing plate 7 moves upward and the clamping force on the optical fiber composite ground wire 3 becomes tighter. In addition, at this time, the wire pressing plate 7 drives the horizontal rod 23 to move upward through the hanging pin 22, and then drives the corner rod 20 to rotate around the fixed axis 21, and pushes the conical block 19 to approach the bracket 16 through the inclined push rod 24. The shape of the conical block 19 pushes the limiting rod 26 at the end of the claw 17 outward, causing the claw 17 to rotate around the bracket 16. This gradually increases the depth of the claw head 18's engagement with the concave ring 14, further enhancing the clamping force. Through the linkage effect between these components, the probability of the claw 18 separating from the concave ring 14 is reduced, and the clamping force of the claw 18 is increased. Example 3

[0038] See also Figures 1 to 6 , an anti-dropout connector for optical fiber composite ground wire of overhead line of power system, comprising a connecting body, an optical fiber composite ground wire 3 is placed inside the connecting body, the connecting body comprises a first clamping component 1 and a second clamping component 2 arranged symmetrically, the first clamping component 1 and the second clamping component 2 both comprise a wire clamping seat 4, an arm sleeve 5 is fixedly provided on the outside of the wire clamping seat 4, a top frame 6 is hingedly provided inside the wire clamping seat 4, a wire pressing plate 7 is provided on the top of the top frame 6, an extension arm 8 is movably provided inside the arm sleeve 5, the extension arm 8 is hinged to the bottom of the top frame 6 through a connecting sleeve 9, a clamp 10 is provided at the end of the extension arm 8 away from the wire clamping seat 4, the optical fiber composite ground wire 3 passes through the clamp 10, and an anti-dropout component 11 is provided between the first clamping component 1 and the second clamping component 2.

[0039] For better results, the shapes of the pressing plate 7 and the clamp 10 are matched with the optical fiber composite ground wire 3. The pressing plate 7 is provided with a groove inside, and the clamp 10 can be further provided with a rubber liner inside to enhance the clamping force while protecting the optical fiber composite ground wire 3.

[0040] For better effect, the anti-slip component 11 includes a positioning portion 12 and a gripping portion 13 . The positioning portion 12 is fixedly arranged on the inner side of the first clamping member 1 , and the gripping portion 13 is fixedly arranged on the inner side of the second clamping member 2 .

[0041] For better effect, the surface of the positioning portion 12 is provided with a concave ring 14, and the gripping portion 13 is provided with an inner rod 15 on the side close to the positioning portion 12. The surface of the inner rod 15 is provided with a bracket 16, and a claw 17 is hingedly provided inside the bracket 16. The claw 17 is provided with a claw head 18 at one end close to the positioning portion 12. The claw head 18 cooperates with the concave ring 14 and can be directly engaged with the inside of the concave ring 14.

[0042] For better effect, the brackets 16 and the claws 17 are evenly and symmetrically distributed outside the inner rod 15. The brackets 16 and the claws 17 can be provided in multiple groups to provide a stable clamping force.

[0043] For better effect, a driving mechanism is provided on the outside of the gripping claw part 13, and the driving mechanism includes a conical block 19 and a corner rod 20. The conical block 19 is movably connected to the inner rod 15, and the end of the claw 17 away from the claw head 18 is clamped with the conical block 19. The corner rod 20 is hinged to the outside of the second clamping part 2 through a fixed axis 21. A horizontal rod 23 is provided on the right side of the corner rod 20, and a hanging pin 22 is fixedly provided on the outside of the wire pressing plate 7. The hanging pin 22 is penetrated and clamped with the horizontal rod 23, and an inclined push rod 24 is provided on the left side of the corner rod 20.

[0044] For better effect, the surface of the conical block 19 is provided with a limiting groove 25, and the end of the clamping claw 17 is provided with a limiting rod 26. The clamping claw 17 is inserted into the limiting groove 25 through the limiting rod 26 to prevent the clamping claw 17 from being separated from the conical block 19.

[0045] For better effect, an early warning component 27 is provided on the upper side of the connecting body. The early warning component 27 includes a front block 28 and a rear block 29. The front block 28 is fixedly provided on the first clamp 1, and the rear block 29 is fixedly provided on the second clamp 2.

[0046] For better effect, a ring 30 is fixedly provided on the upper side of the front block 28, and a pressure rod 31 is hingedly provided on the upper side of the rear block 29. An early warning device 32 is provided at the end of the pressure rod 31, and a fixed contact 33 is provided on the outside of the early warning device 32. A slide groove 34 is provided on the surface of the pressure rod 31, and a slider 35 is clamped inside the slide groove 34. A spring 37 is provided between the slider 35 and the slide groove 34. A movable contact 36 is provided on the outside of the slider 35, and the positions of the movable contact 36 and the fixed contact 33 correspond to each other.

[0047] For better effect, described collar 30 upper side is clamped and is provided with movable cover plate 38. Collar 30 can be opened by movable cover plate 38, is convenient for pressing rod 31 to put in and take out collar 30 inside.

[0048] In one embodiment, further, the structure of the early warning component 27 is preferably used as follows: the first clamp 1 and the second clamp 2 are symmetrically placed to ensure that the axis of the ring 30 and the pressure rod 31 coincide. Open the ring 30 and place the pressure rod 31 inside so that the slider 35 is located on the left side of the ring 30, close the movable cover 38 above the ring 30, and confirm that the movable cover 38 is snapped into place. Under normal circumstances, the optical fiber composite ground wire 3 is connected normally, the first clamp 1 and the second clamp 2 are structurally stable, and under the action of the spring 37, the spring 37 pushes the slider 35 away from the early warning device 32. When the optical fiber composite ground wire 3 gradually breaks from the connection, it will drive the first clamp 1 and the second clamp 2 away from each other. At this time, the front block 28 and the rear block 29 also move away from each other, and the pressure rod 31 slides in the ring 30, pushing the slider 35 close to the early warning device 32. Until the fixed contact 33 and the movable contact 36 come into contact with each other to form a closed circuit, the early warning device 32 is connected and started, and an early warning signal is immediately sent to notify the operating personnel to come and check and maintain in time to avoid more serious hazards in the future.

[0049] The above structure can ensure the stable operation of the connection body in the overhead line, realize the reliable connection between the optical fiber composite ground wire and the connecting component, and avoid line failure caused by falling off.

Claims

1. A fiber-optic composite ground wire anti-dropout connector for overhead power lines, comprising a connecting body, wherein the fiber-optic composite ground wire is placed inside the connecting body, characterized in that: The connecting body includes a first clamp and a second clamp symmetrically arranged, and the first clamp and the second clamp both include a wire clamping seat, an arm sleeve is fixedly provided on the outside of the wire clamping seat, a top frame is hingedly provided inside the wire clamping seat, a wire pressing plate is provided on the top of the top frame, an extension arm is movably provided inside the arm sleeve, and the extension arm is hinged to the bottom of the top frame through a connecting sleeve, a clamp is provided at one end of the extension arm away from the wire clamping seat, the optical fiber composite ground wire passes through the clamp, and an anti-slip component is provided between the first clamp and the second clamp.

2. The anti-dropout connector for optical fiber composite ground wire of an overhead power line according to claim 1, characterized in that: The shapes of the wire pressing plate and the clamper are matched with the optical fiber composite ground wire.

3. The anti-dropout connector for optical fiber composite ground wire of an overhead power line of a power system according to claim 1, characterized in that: The anti-slip assembly includes a positioning portion and a gripping claw portion, wherein the positioning portion is fixedly arranged on the inner side of the first clamping member, and the gripping claw portion is fixedly arranged on the inner side of the second clamping member.

4. The anti-dropout connector for optical fiber composite ground wire of an overhead power line of a power system according to claim 3, characterized in that: A concave ring is provided on the surface of the positioning part, an inner rod is provided on the side of the gripping claw close to the positioning part, a bracket is provided on the surface of the inner rod, a claw is hingedly provided inside the bracket, and a claw head is provided on one end of the claw close to the positioning part.

5. The anti-dropout connector for optical fiber composite ground wire of an overhead line of a power system according to claim 4, characterized in that: The brackets and the claws are evenly and symmetrically distributed on the outer side of the inner rod.

6. The anti-dropout connector for optical fiber composite ground wire of an overhead power line according to claim 5, characterized in that: A driving mechanism is provided on the outside of the gripping claw part, and the driving mechanism includes a conical block and a corner rod. The conical block is movably connected to the inner rod, and the end of the claw away from the claw head is clamped with the conical block. The corner rod is hinged to the outside of the second clamp through a fixed axis, and a horizontal rod is provided on the right side of the corner rod. A hanging pin is fixedly provided on the outside of the wire pressing plate, and the hanging pin is penetrated and clamped with the horizontal rod. An oblique push rod is provided on the left side of the corner rod.

7. The anti-dropout connector for optical fiber composite ground wire of an overhead power line according to claim 6, characterized in that: A limiting groove is provided on the surface of the conical block, and a limiting rod is provided on the end of the clamping claw.

8. The anti-dropout connector for optical fiber composite ground wire of an overhead line of a power system according to claim 1, characterized in that: An early warning component is provided on the upper side of the connecting body. The early warning component includes a front block and a rear block. The front block is fixed to the first clamping member, and the rear block is fixed to the second clamping member.

9. The anti-dropout connector for optical fiber composite ground wire of an overhead line of a power system according to claim 8, characterized in that: A ring is fixedly provided on the upper side of the front block, a pressure rod is hingedly provided on the upper side of the rear block, an early warning device is provided at the end of the pressure rod, a fixed contact is provided on the outside of the early warning device, a slide groove is provided on the surface of the pressure rod, a slider is clamped inside the slide groove, a spring is provided between the slider and the slide groove, a movable contact is provided on the outside of the slider, and the positions of the movable contact and the fixed contact correspond to each other.

10. The anti-dropout connector for optical fiber composite ground wire of an overhead line of a power system according to claim 9, characterized in that: A movable cover plate is clamped on the upper side of the collar.

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