OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable downlead mounting wire clamp and use method

Abstract

The invention relates to an OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable downlead mounting wire clamp and a use method, the OPGW optical cable downlead mounting wire clamp comprises a positioning seat, a fixing hoop is arranged in the positioning seat, an adjusting buckle is fixedly arranged at the end part of the fixing hoop, an adjusting belt is arranged on the left side of the fixing hoop, the adjusting belt is matched with the adjusting buckle, a connecting table is arranged on the outer side of the positioning seat, and the connecting table is connected with the fixing hoop. A wire clamping main body is arranged in the connecting table; the device can adapt to tower mounting surfaces of different sizes, disperse fixing stress, avoid structural deformation or looseness caused by local stress concentration, improve fixing stability, ensure uniform stress of the downlead, avoid local indentation or deformation and effectively improve the mounting speed of the downlead.

Description

Technical Field

[0001] The invention belongs to the technical field of downlead installation equipment, and in particular relates to an OPGW optical cable downlead installation clamp and a use method thereof. Background Art

[0002] OPGW cables, also known as optical fiber composite overhead ground wires, utilize transmission line structures to achieve both grounding and communication. OPGW cables consist of a tubular structure containing one or more optical cables, surrounded by a steel and aluminum outer shell. They are typically installed at the top of transmission lines. Their conductive components provide grounding, acting as a protective barrier against lightning strikes. The internal optical cables provide high-speed data transmission, which contributes to the protection and control of the power system itself.

[0003] When lowering OPGW optical cables, they require installation clamps to prevent friction with the pole tower during operation, thereby ensuring insulation between the cable and the tower. Currently, the cable is secured to the tower using a matching fixture and insulating rubber. However, the rubber material ages over time, affecting insulation and clamping capacity. Existing installation clamps often use bolts for fastening, which is cumbersome and difficult to adjust at the height and angle, hindering work progress. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an OPGW optical cable down conductor installation clamp and a method of use thereof, so as to solve the problems raised in the background art.

[0005] The object of the present invention is achieved as follows: an OPGW optical cable down conductor installation clamp, which includes a positioning seat, a fixed clamp is arranged inside the positioning seat, an adjustment buckle is fixedly arranged on the end of the fixed clamp, an adjustment belt is arranged on the left side of the fixed clamp, the adjustment belt and the adjustment buckle cooperate with each other, a connecting platform is arranged on the outside of the positioning seat, and a wire clamping body is arranged inside the connecting platform.

[0006] The fixing clamps are provided in two sets, and the two sets of fixing clamps are symmetrical with respect to the connecting platform. The two sets of fixing clamps can provide a more stable fixing effect for the device.

[0007] The wire clamping body includes a supporting block and a side arm, a connecting block is fixedly provided at the end of the supporting block, a central hole is provided in the middle of the supporting block, a central axis is movably provided inside the central hole, a driving block is fixedly provided at the outer end of the central axis, a paddle is provided at the end of the central axis away from the driving block, the paddle is located on the outside of the connecting block, a side hole is provided on the side of the supporting block, a reamed hole is provided at the end of the supporting block away from the side hole, the side arm is hinged to the supporting block through the reamed hole, an expanded hole is provided on the side of the side arm, a compression rod is movably provided inside the expanded hole, the compression rod passes through the side hole, a hinge is hinged between the side arm and the driving block, and a clamping claw is fixed at the outer end of the side arm.

[0008] The side hole and the expanded hole are all interference fit with the compression rod. A rod head is provided at one end of the compression rod close to the side hole to prevent the compression rod from being separated from the side hole.

[0009] A compression spring is provided between the outer end of the compression rod and the expansion hole, and the compression spring is sleeved on the outside of the compression rod.

[0010] The outer end of the compression rod is threadedly provided with an adjusting nut, which can adjust the length of the compression spring and thus adjust the elastic force of the compression spring.

[0011] The inner side of the clamping jaw is in an arc shape, and the outer side of the clamping jaw is provided with biting teeth.

[0012] A positioning mechanism is provided between the positioning seat and the connecting platform, and the positioning mechanism includes a translation groove, which is located on the surface of the positioning seat. The connecting platform is clamped in the translation groove, and a limiting rack is provided on the lower side of the translation groove. A pressure plate is provided at a position corresponding to the limiting rack inside the connecting platform, and the pressure plate cooperates with the limiting rack.

[0013] A tightening spring is provided between the pressing plate and the connecting platform, and a pull ring is provided on the outer side of the pressing plate.

[0014] A lifting screw is vertically arranged inside the connecting platform, a collar is threadedly arranged on the outside of the lifting screw, and the collar is fixedly connected to the wire clamping body. A first bevel gear is arranged on the upper end of the lifting screw, a second bevel gear is meshed with the outside of the first bevel gear, and a bolt head is fixedly arranged on the outer end of the second bevel gear.

[0015] A method for using an OPGW optical cable down conductor installation clamp comprises the following steps: Step 1: Before use, determine the tower where the down conductor needs to be installed, ensure that the construction equipment is in a safe and stable state, and check whether the positioning seat, fixing clamp, connecting platform and other components are intact to ensure normal operation; Step 2: Wrap the fixing clamp of the positioning seat around the installation part of the tower, match the adjustment belt with the adjustment buckle, tighten the adjustment belt so that the two sets of symmetrical fixing clamps fit tightly against the installation surface, and complete the positioning of the positioning seat; Step 3: Push the connecting platform to slide along the translation groove on the surface of the positioning seat and adjust it to a suitable horizontal position for the down conductor path. Rotate the bolt head on the outside of the connecting platform to drive the wire clamp body to adjust to a position that matches the height of the down conductor. Step 4: Move the paddle to open the clamping jaws, place the down conductor into the clamping body, ensure that the down conductor fits in place with the inner side of the clamping jaws, release the paddle to allow the clamping jaws to clamp the down conductor. After the down conductor is fixed as a whole, organize and store the device, and recycle the tools and equipment.

[0016] The present invention has the following advantages: It utilizes two sets of symmetrical fixing clamps about the connecting platform, which, through the adjustment strap and the adjustment buckle, form an annular wrap-around fixing structure. This adapts to tower mounting surfaces of varying sizes, disperses fixing stress, avoids structural deformation or loosening caused by localized stress concentration, and improves fixing stability.

[0017] The adjustment buckle has a built-in ratchet structure that can lock the adjustment belt in one direction, effectively preventing loosening caused by wind vibration or temperature changes, and adapting to long-term stable operation under complex working conditions.

[0018] The connecting platform is connected to the positioning base through a translation slot, and can be adjusted horizontally along the surface of the positioning base to adapt to slight deviations in the optical cable drop path. This avoids the need for disassembly and reinstallation of traditional fixed cable clamps due to path deviations.

[0019] The lifting mechanism is composed of a lifting screw and a bevel gear transmission system. Rotating the bolt head can drive the collar to move the clamp body up and down. The adjustment range covers common lead-down height requirements.

[0020] By moving the paddle, the central axis moves, and the hinge pulls the side arms to rotate around the reaming hole, evenly opening the jaws to facilitate down conductor insertion. This ensures uniform force on the down conductor, avoiding localized indentations or deformation. The compression spring provides continuous, stable clamping force. This device also effectively speeds down conductor installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall structural diagram of an OPGW optical cable down conductor installation clamp according to the present invention.

[0022] Figure 2 This is a structural diagram of the wire clamping body of an OPGW optical cable down conductor installation clamp of the present invention.

[0023] Figure 3 This is a cross-sectional view of a supporting block for installing a wire clamp for an OPGW optical cable down conductor according to the present invention.

[0024] Figure 4 This is a top view of the connection between the limiting rack and the connecting platform of the OPGW optical cable down conductor installation clamp of the present invention.

[0025] Figure 5 This is a top view of the structure of a pressure plate for installing a wire clamp for an OPGW optical cable down conductor according to the present invention.

[0026] Figure 6 This is a structural diagram of a lifting screw for installing a wire clamp for an OPGW optical cable down conductor according to the present invention.

[0027] In the figure: 1. Positioning seat; 2. Connecting platform; 3. Fixing clamp; 4. Adjusting buckle; 5. Adjusting belt; 6. Wire clamp body; 7. Supporting block; 8. Reaming hole; 9. Center hole; 10. Center axis; 11. Side hole; 12. Connecting block; 13. Pick; 14. Side arm; 15. Reaming hole; 16. Compression rod; 17. Compression spring; 18. Adjusting nut; 19. Clamping jaw; 20. Driving block; 21. Hinge; 22. Biting tooth; 23. Translation groove; 24. Limiting rack; 25. Pressure plate; 26. Pull ring; 27. Tightening spring; 28. Lifting screw; 29. ​​Ring; 30. First bevel gear; 31. Second bevel gear; 32. Bolt head. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings. Example 1

[0029] like Figure 1 As shown, an OPGW optical cable down conductor installation clamp includes a positioning seat 1, a fixed clamp 3 is provided inside the positioning seat 1, an adjustment buckle 4 is fixedly provided at the end of the fixed clamp 3, an adjustment belt 5 is provided on the left side of the fixed clamp 3, the adjustment belt 5 cooperates with the adjustment buckle 4, a connecting platform 2 is provided on the outside of the positioning seat 1, and a wire clamping body 6 is provided inside the connecting platform 2.

[0030] Furthermore, two sets of fixing clamps 3 are provided, and the two sets of fixing clamps 3 are symmetrical with respect to the connecting platform 2. The two sets of fixing clamps 3 can provide a more stable fixing effect for the device.

[0031] When using the present invention, two sets of symmetrical fixing clamps 3 are placed around the mounting surface. The adjustment strap 5 is passed through the ratchet structure of the adjustment buckle 4. The end of the adjustment strap 5 is pulled to make the fixing clamp 3 fit tightly against the mounting surface. The ratchet of the adjustment buckle 4 automatically locks to prevent loosening, ensuring that the positioning seat 1 is level and without shaking. The OPGW optical cable down conductor is placed into the clamp body 6. The down conductor axis is aligned with the inner side of the clamp body 6 to ensure uniform contact between the down conductor surface and the clamp body 6. The clamp body 6 is then used to secure the down conductor. Example 2

[0032] like Figure 1-3 As shown, an OPGW optical cable down conductor installation clamp includes a positioning seat 1, a fixed clamp 3 is provided inside the positioning seat 1, an adjustment buckle 4 is fixedly provided at the end of the fixed clamp 3, an adjustment belt 5 is provided on the left side of the fixed clamp 3, the adjustment belt 5 cooperates with the adjustment buckle 4, a connecting platform 2 is provided on the outside of the positioning seat 1, and a wire clamping body 6 is provided inside the connecting platform 2.

[0033] Furthermore, two sets of fixing clamps 3 are provided, and the two sets of fixing clamps 3 are symmetrical with respect to the connecting platform 2. The two sets of fixing clamps 3 can provide a more stable fixing effect for the device.

[0034] Furthermore, the wire clamping body 6 includes a supporting block 7 and a side arm 14, the end of the supporting block 7 is fixedly provided with a connecting block 12, the middle of the supporting block 7 is provided with a middle hole 9, the inside of the middle hole 9 is movably provided with a middle shaft 10, the outer end of the middle shaft 10 is fixedly provided with a driving block 20, the end of the middle shaft 10 away from the driving block 20 is provided with a paddle 13, the paddle 13 is located on the outside of the connecting block 12, the side of the supporting block 7 is provided with a side hole 11, the end of the supporting block 7 away from the side hole 11 is provided with a reaming hole 8, the side arm 14 is hinged to the supporting block 7 through the reaming hole 8, the side of the side arm 14 is provided with an reaming hole 15, the inside of the reaming hole 15 is movably provided with a compression rod 16, the compression rod 16 passes through the inside of the side hole 11, the side arm 14 is hinged to the driving block 20 with a hinge 21, and the outer end of the side arm 14 is fixedly provided with a clamping claw 19.

[0035] Furthermore, a compression spring 17 is provided between the outer end of the compression rod 16 and the expansion hole 15 , and the compression spring 17 is sleeved on the outside of the compression rod 16 .

[0036] Furthermore, an adjusting nut 18 is threadedly provided on the outer end of the compression rod 16. The adjusting nut 18 can adjust the length of the compression spring 17, and then adjust the elastic force of the compression spring 17.

[0037] Furthermore, the inner side of the clamping jaw 19 is arc-shaped, and the outer side of the clamping jaw 19 is provided with teeth 22. The arc shape facilitates contact with the down conductor, increases the contact area, and improves friction; the teeth 22 engage with each other to prevent the down conductor from escaping from the clamping jaw 19.

[0038] In one embodiment, the main structure of the wire clamp is preferably used as follows: the paddle 13 is moved with the finger in the direction close to the supporting block 7, driving the central axis 10 to move outward in the central hole 9. When the central axis 10 moves outward, the driving block 20 moves synchronously with the central axis 10. The driving block 20 pulls the side arm 14 to rotate around the reaming hole 8 through the hinge 21. At this time, the compression rod 16 moves inside the side hole 11 and the expansion hole 15, and at the same time compresses the compression spring 17. At this time, the clamping claw 19 at the outer end of the side arm 14 opens. The down conductor is placed inside the clamping claw 19, and the inner arc structure of the clamping claw 19 fits the surface of the down conductor. Release the paddle 13, and under the action of the compression spring 17, the compression spring 17 pushes the side arm 14 to drive the clamping claw 19 to close, thereby clamping the down conductor, and at the same time, the teeth are closed to prevent the down conductor from falling out.

[0039] Furthermore, the position of the adjusting nut 18 outside the compression rod 16 can be changed by rotating the adjusting nut 18 to adjust the degree of compression of the compression spring 17, thereby achieving the purpose of adjusting the clamping force of the clamping jaws 19. Example 3

[0040] like Figure 1-6 As shown, an OPGW optical cable down conductor installation clamp includes a positioning seat 1, a fixed clamp 3 is provided inside the positioning seat 1, an adjustment buckle 4 is fixedly provided at the end of the fixed clamp 3, an adjustment belt 5 is provided on the left side of the fixed clamp 3, the adjustment belt 5 cooperates with the adjustment buckle 4, a connecting platform 2 is provided on the outside of the positioning seat 1, and a wire clamping body 6 is provided inside the connecting platform 2.

[0041] Furthermore, two sets of fixing clamps 3 are provided, and the two sets of fixing clamps 3 are symmetrical with respect to the connecting platform 2. The two sets of fixing clamps 3 can provide a more stable fixing effect for the device.

[0042] Furthermore, the wire clamping body 6 includes a supporting block 7 and a side arm 14, the end of the supporting block 7 is fixedly provided with a connecting block 12, the middle of the supporting block 7 is provided with a middle hole 9, the inside of the middle hole 9 is movably provided with a middle shaft 10, the outer end of the middle shaft 10 is fixedly provided with a driving block 20, the end of the middle shaft 10 away from the driving block 20 is provided with a paddle 13, the paddle 13 is located on the outside of the connecting block 12, the side of the supporting block 7 is provided with a side hole 11, the end of the supporting block 7 away from the side hole 11 is provided with a reaming hole 8, the side arm 14 is hinged to the supporting block 7 through the reaming hole 8, the side of the side arm 14 is provided with an reaming hole 15, the inside of the reaming hole 15 is movably provided with a compression rod 16, the compression rod 16 passes through the inside of the side hole 11, the side arm 14 is hinged to the driving block 20 with a hinge 21, and the outer end of the side arm 14 is fixedly provided with a clamping claw 19.

[0043] Furthermore, a compression spring 17 is provided between the outer end of the compression rod 16 and the expansion hole 15 , and the compression spring 17 is sleeved on the outside of the compression rod 16 .

[0044] Furthermore, an adjusting nut 18 is threadedly provided on the outer end of the compression rod 16. The adjusting nut 18 can adjust the length of the compression spring 17, and then adjust the elastic force of the compression spring 17.

[0045] Furthermore, the inner side of the clamping jaw 19 is arc-shaped, and the outer side of the clamping jaw 19 is provided with teeth 22. The arc shape facilitates contact with the down conductor, increases the contact area, and improves friction; the teeth 22 engage with each other to prevent the down conductor from escaping from the clamping jaw 19.

[0046] Furthermore, a positioning mechanism is provided between the positioning seat 1 and the connecting platform 2, and the positioning mechanism includes a translation groove 23, the translation groove 23 is located on the surface of the positioning seat 1, the connecting platform 2 is clamped inside the translation groove 23, and a limiting rack 24 is provided on the lower side of the translation groove 23. A pressure plate 25 is provided at a position corresponding to the limiting rack 24 inside the connecting platform 2, and the pressure plate 25 cooperates with the limiting rack 24.

[0047] Furthermore, a tensioning spring 27 is provided between the pressing plate 25 and the connecting platform 2 , and a pull ring 26 is provided on the outer side of the pressing plate 25 .

[0048] Furthermore, a lifting screw 28 is vertically provided inside the connecting platform 2, and a ring 29 is threadedly provided on the outer side of the lifting screw 28. The ring 29 is fixedly connected to the wire clamping body 6. A first bevel gear 30 is provided at the upper end of the lifting screw 28, and a second bevel gear 31 is meshed with the outer side of the first bevel gear 30. A bolt head 32 is fixedly provided at the outer end of the second bevel gear 31.

[0049] The bevel gear 30 and the screw drive are self-locking, which can prevent the wire clamping body 6 from sliding down due to gravity, thereby ensuring stable height positioning.

[0050] A method for using an OPGW optical cable down conductor installation clamp comprises the following steps: Step 1: Before use, determine the tower where the down conductor needs to be installed, ensure that the construction equipment is in a safe and stable state, and check whether the positioning seat 1, fixing clamp 3, connecting platform 2 and other components are intact to ensure normal operation; Step 2: Wrap the fixing clamp 3 of the positioning seat 1 around the installation part of the tower, and tighten the adjusting belt 5 to make the two sets of symmetrical fixing clamps 3 fit tightly against the installation surface, thus completing the fixing and positioning of the positioning seat 1; Step 3: Push the connecting platform 2 to slide along the translation groove 23 on the surface of the positioning seat 1 and adjust it to a suitable horizontal position of the down conductor path. Rotate the bolt head 32 on the outside of the connecting platform 2 to drive the wire clamp body 6 to adjust to a position that matches the height of the down conductor. Step 4: Move the paddle 13 to open the clamping jaw 19, place the down conductor into the clamping body 6, ensure that the down conductor fits in place with the inner side of the clamping jaw 19, release the paddle 13 to allow the clamping jaw 19 to clamp the down conductor. After the down conductor is fixed as a whole, organize and store the device and recycle the tools and equipment.

[0051] In one embodiment, the adjustment mechanism is preferably used as follows: when adjusting horizontally, the pull ring 26 is pulled away from the positioning seat 1, driving the pressure plate 25 to compress the tension spring 27, so that the pressure plate 25 is separated from the limit rack 24 under the translation groove 23. The connecting platform 2 is slid along the translation groove 23 on the surface of the positioning seat 1. After reaching the predetermined position, the pull ring 26 is released, and the pressure plate 25 is reset under the action of the tension spring 27 and snaps into the tooth groove of the limit rack 24. The limit rack 24 and the pressure plate 25 are provided in two sets. Only when they are operated simultaneously can the adjustment operation be completed to avoid accidental contact due to external force. When adjusting vertically, the bolt head 32 on the outside of the connecting platform 2 is rotated by a wrench. The bolt head 32 drives the second bevel gear 31 to rotate, and the meshing transmission drives the first bevel gear 30 and the lifting screw 28 to rotate. The collar 29 moves up and down along the lifting screw 28, thereby driving the wire clamp body 6 to rise and fall. The position adjustment mechanism can partially adjust the position of the connecting platform 2 and the wire clamp body 6 without removing the fixing clamp 3, thereby avoiding the problem of reduced work efficiency caused by the need for repeated adjustment of the fixing clamp 3 by bolts in the existing wire clamp.

[0052] This device solves the problems of unstable fixation and difficult adjustment of traditional wire clamps through innovative designs such as adaptive fixation, precise adjustment, and controllable clamping force. It significantly improves the reliability, safety, and economy of down conductor installation and is suitable for a variety of pole tower structures and complex environments.

Claims

1. An OPGW optical cable down conductor installation clamp, comprising a positioning seat, characterized in that: A fixing clamp is provided inside the positioning seat, an adjustment buckle is fixedly provided at the end of the fixing clamp, an adjustment belt is provided on the left side of the fixing clamp, the adjustment belt and the adjustment buckle cooperate with each other, a connecting platform is provided on the outside of the positioning seat, and a wire clamping body is provided inside the connecting platform.

2. The OPGW optical cable down conductor installation clamp according to claim 1, characterized in that: The fixing clamps are provided in two sets, and the two sets of fixing clamps are symmetrical with respect to the connecting platform.

3. The OPGW optical cable down conductor installation clamp according to claim 1, characterized in that: The wire clamping body includes a supporting block and a side arm, a connecting block is fixedly provided at the end of the supporting block, a central hole is provided in the middle of the supporting block, a central axis is movably provided inside the central hole, a driving block is fixedly provided at the outer end of the central axis, a paddle is provided at the end of the central axis away from the driving block, the paddle is located on the outside of the connecting block, a side hole is provided on the side of the supporting block, a reamed hole is provided at the end of the supporting block away from the side hole, the side arm is hinged to the supporting block through the reamed hole, an expanded hole is provided on the side of the side arm, a compression rod is movably provided inside the expanded hole, the compression rod passes through the side hole, a hinge is hinged between the side arm and the driving block, and a clamping claw is fixed at the outer end of the side arm.

4. The OPGW optical cable down conductor installation clamp according to claim 3, characterized in that: A compression spring is provided between the outer end of the compression rod and the expanded hole, and the compression spring is sleeved on the outside of the compression rod.

5. The OPGW optical cable down conductor installation clamp according to claim 4, characterized in that: An adjusting nut is threadedly provided on the outer end of the compression rod.

6. The OPGW optical cable down conductor installation clamp according to claim 5, characterized in that: The inner side of the clamping jaw is in an arc shape, and the outer side of the clamping jaw is provided with biting teeth.

7. The OPGW optical cable down conductor installation clamp according to claim 1, characterized in that: A positioning mechanism is provided between the positioning seat and the connecting platform, and the positioning mechanism includes a translation groove, which is located on the surface of the positioning seat. The connecting platform is clamped in the translation groove, and a limiting rack is provided on the lower side of the translation groove. A pressure plate is provided at a position corresponding to the limiting rack inside the connecting platform, and the pressure plate cooperates with the limiting rack.

8. The OPGW optical cable down conductor installation clamp according to claim 7, characterized in that: A tightening spring is provided between the pressing plate and the connecting platform, and a pull ring is provided on the outer side of the pressing plate.

9. The OPGW optical cable down conductor installation clamp according to claim 8, characterized in that: A lifting screw is vertically arranged inside the connecting platform, a collar is threadedly arranged on the outside of the lifting screw, and the collar is fixedly connected to the wire clamping body. A first bevel gear is arranged on the upper end of the lifting screw, a second bevel gear is meshed with the outside of the first bevel gear, and a bolt head is fixedly arranged on the outer end of the second bevel gear.

10. A method for using an OPGW optical cable down conductor installation clamp according to any one of claims 1 to 9, characterized in that: It includes the following steps: Step 1: Before use, determine the tower where the down conductor needs to be installed, ensure that the construction equipment is in a safe and stable state, and check whether the positioning seat, fixing clamp, connecting platform and other components are intact to ensure normal operation; Step 2: Wrap the fixing clamp of the positioning seat around the installation part of the tower, match the adjustment belt with the adjustment buckle, tighten the adjustment belt so that the two sets of symmetrical fixing clamps fit tightly against the installation surface, and complete the positioning of the positioning seat; Step 3: Push the connecting platform to slide along the translation groove on the surface of the positioning seat and adjust it to a suitable horizontal position for the down conductor path. Rotate the bolt head on the outside of the connecting platform to drive the wire clamp body to adjust to a position that matches the height of the down conductor. Step 4: Move the paddle to open the clamping jaws, place the down conductor into the clamping body, ensure that the down conductor fits in place with the inner side of the clamping jaws, release the paddle to allow the clamping jaws to clamp the down conductor. After the down conductor is fixed as a whole, organize and store the device, and recycle the tools and equipment.

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