Tension-adjustable stay wire fitting and installation method thereof

Abstract

The application provides a tension-adjustable stay wire fitting and a mounting method thereof, which comprises a fitting body and a wire, and the fitting body is a supporting clamp. The supporting clamp is provided with double ear plates at the bottom symmetrically, and snap rings are arranged at the two ends of the double ear plates and located at the two sides of the supporting clamp. An adjusting sleeve is arranged on the snap ring. The positioning pin is in a U shape, and a pin shaft is arranged at the end of the positioning pin. The pin shaft extends to the bottom through the adjusting sleeve. The wire passes through the supporting clamp and is fixed by the positioning pins at the two sides of the supporting clamp. The bottom of the double ear plate is provided with an adjusting device. The rotation of the adjusting device makes the pin shaft move up and down in the adjusting sleeve, and the tension between the wire and the supporting clamp is changed. An axle seat is arranged at one side of the supporting clamp, and a rotating plate is hinged to the axle seat. A pre-pressing device is arranged on the rotating plate, and the pre-pressing device presses the wire in the supporting clamp. Adjustable extension components are arranged at the two ends of the supporting clamp, so that the wire can adapt to the line requirements of different directions during installation. The rotating plate is buckled without holding, the wire is pre-pressed by a single hand, the high-altitude bolt operation is saved, and the speed is increased.

Description

Technical Field

[0001] This invention relates to the field of hardware, specifically to a tension-adjustable wire fitting and its installation method. Background Technology

[0002] In overhead power transmission lines and distribution networks, guy wire fittings are the core fastening components that ensure the stability of the tower structure. Specifically, the clamps involved in this solution mainly refer to bolt-type tension clamps. They utilize the bolt tightening force to clamp the conductor together with the corrugated groove on the body. The friction generated by the contact surface bears the entire horizontal tension of the conductor and transmits the tension to the tower foundation.

[0003] A tension clamp structure is currently disclosed in Chinese patent document publication number CN208299398U, comprising a tension clamp body, a fixing pin, a connecting rod, a fastening pad, and a corrosion-resistant plate. The inner side of the tension clamp body is provided with a cable body, and a fixing clamp is installed at the right end of the tension clamp body. A connecting ring is fixed at the lower end of the tension clamp body. The fixing pin passes through the interior of the fixing clamp, and the left end of the fixing pin has a threaded structure. A fixing ring is connected to the outer side of the fixing pin. The connecting rod is located inside the tension clamp body. The fastening pad is located on the lower surface of the connecting rod, and a stop block is fixed on the upper surface of the fastening pad. The corrosion-resistant plate is located on the outer surface of the tension clamp body, and an insulating plate is provided inside the corrosion-resistant plate.

[0004] However, this patent has certain limitations in practical applications. The tension adjustment of the aforementioned clamp is mainly based on the engagement length of the threaded pair. Existing installation methods typically involve pre-tightening the clamp on the ground and then hoisting the entire unit to the tower position, or repeatedly adjusting it at high altitude using a wrench. Existing solutions can usually only ensure that the clamp does not loosen, but high-altitude operations are risky and lack rapid assembly capabilities.

[0005] To address this issue, a tension-adjustable guy wire fitting and its installation method are proposed. Summary of the Invention

[0006] To overcome the problems of high-altitude operation risks and lack of rapid assembly capability in existing technologies, this invention provides a tension-adjustable cable fitting and its installation method.

[0007] This invention is achieved using the following technical solution: 1. A tension-adjustable draw wire fitting, comprising a fitting body and a conductor, wherein the fitting body is specifically a bracket, and the bottom of the bracket is symmetrically provided with double ear plates, and the two ends of the double ear plates are provided with retaining rings on both sides of the bracket, and adjusting sleeves are installed on the retaining rings; The positioning pin is U-shaped and has a pin shaft at its end. The pin shaft passes through the adjusting sleeve and extends to the bottom. The wire passes through the bracket and is fixed by the positioning pins on both sides of the bracket. An adjusting device is provided at the bottom of the double ear plate. Rotating the adjusting device causes the pin shaft to move up and down in the adjusting sleeve, changing the tension between the wire and the bracket. A bearing seat is provided on one side of the clamp, and a rotating plate is hinged to the bearing seat. A pre-compression device is provided on the rotating plate, which presses the wire tightly inside the clamp. The clamp has adjustable extension parts at both ends, allowing the conductor to adapt to different line directions during installation.

[0008] Preferably, the adjusting device includes a worm, a first gear, and a second gear. The first gear and the second gear are a set, and two sets are symmetrically arranged. The first gear is located on the inner wall of the adjusting sleeve, and the second gear is located at the bottom of the double ear plate. The second gear meshes with the first gear. The worm is located at the center of the bottom end of the double ear plate and is connected to the second gear. Rotating the worm drives the second gear to rotate, which in turn drives the first gear to rotate. The rotation of the adjusting sleeve causes the pin to move up and down, thereby realizing tension adjustment. One end of the worm gear extends outward and is equipped with an adjusting slide head, while the other end of the worm gear is equipped with a fixing sleeve on its peripheral wall. One end of the fixing sleeve is fixed to the bottom of the double ear plate. The bottom of the double ear plate is detachably fitted with a protective cover.

[0009] Preferably, the worm gear has sliding teeth on its outer periphery, the double ear plate has a sliding groove at its bottom end, an adjusting block is movably disposed in the sliding groove, the adjusting block can be radially adjusted along the sliding groove, the adjusting block is wrapped around the outer periphery of the worm gear, and the adjusting block has multiple tooth grooves that cooperate with the sliding teeth.

[0010] Preferably, the pre-pressing device includes a pressure plate located above the support clamp. An adjusting handle is provided at the center of the pressure plate, and a movable sleeve is provided at the center of the rotating plate. The adjusting handle passes through the movable sleeve and is fixedly connected to the pressure plate. Rotating the adjusting handle causes the pressure plate to move up and down, changing the distance between the pressure plate and the support clamp.

[0011] Preferably, the end of the rotating plate is provided with a fixing component, which includes a latch and an adjusting handle. The adjusting handle is hinged on the side away from the shaft seat, the latch is fixed to the end of the rotating plate, the rotating plate rotates around the hinge point of the shaft seat and fits against the support surface, and the adjusting handle is engaged with the latch.

[0012] Preferably, the extension component includes an extension head, and two extension heads are provided. The two extension heads are respectively hinged to both ends of the clamp. Adjustment areas are respectively provided on the inner side of both ends of the clamp. An adjustment plate is provided on the inner side of the extension head. The adjustment plate can be embedded in the adjustment area. Multiple positioning holes are provided in the adjustment area. The multiple positioning holes correspond to different adjustment angles of the extension head. An elastic element that cooperates with the positioning holes is provided on the outer side of the adjustment plate. A guide groove is provided on the inner side of the adjustment area, and a guide block is provided on the outer side of the adjustment plate. The guide block is slidably set in the guide groove, and the extended support head expands or retracts along the direction of the guide groove.

[0013] Preferably, pressure head plates are hinged to both ends of the pressure plate, and limit buckles are provided at both ends of the pressure plate. The pressure head plates move within the range of the limit buckles, and anti-slip strips are provided on the pressure head plates and the inner walls of the bottom ends of the pressure plate.

[0014] Preferably, the elastic element specifically includes a ball and a return spring. One end of the return spring is fixed to the outside of the adjustment plate, and the other end of the return spring is fixedly connected to the ball. The ball engages with the positioning hole.

[0015] An adjustable tension guy wire fitting and its installation method include the following steps: S1. Pre-positioning of the bracket: Place the bracket at the position corresponding to the wire to be installed, so that the wire is placed in the arc groove of the bracket. Rotate the rotating plate around the hinge point of the shaft seat to the other side of the bracket until the inner side of the rotating plate is in contact with the outer surface of the bracket. Snap the adjusting handle at the end of the rotating plate in the locking direction so that the rotating plate and the bracket form a closed clamping frame, completing the initial positioning of the bracket. S2. Pre-tightening of the wire: Rotate the adjusting handle. The adjusting handle is screwed in along the thread on the inner wall of the movable sleeve, which drives the pressure plate fixedly connected to it to move downward, gradually reducing the distance between the pressure plate and the support clamp, until the anti-slip strip on the bottom surface of the pressure plate and the pressure head plate is initially pressed against the outer circumference of the wire. S3. Positioning pin assembly: Place the positioning pin across the retaining rings on both sides of the clamp, aligning the pin shafts at both ends of the positioning pin with the adjustment sleeve inlet at the bottom of the double ear plate. Push the positioning pin downwards until the pin shaft is fully inserted into the adjustment sleeve, and the thread on the outer wall of the pin shaft forms a screw connection with the central threaded hole of the first gear on the inner wall of the adjustment sleeve. Rotate the adjusting slide head to make the worm rotate in the forward or reverse direction. The worm drives the second gear meshing with it to rotate, and the second gear synchronously drives the first gear meshing with it to rotate. The first gear drives the entire adjustment sleeve to rotate around its own axis; thereby causing the positioning pin to move up and down, pulling the clamp to adjust the tightness of the fit with the wire until the wire tension reaches the design threshold. S4. Adjustment device self-locking and protection: After the tension is adjusted to the correct position, move the adjustment block radially so that the multiple grooves on the inner wall of the adjustment block are fully engaged with the sliding teeth on the outer periphery of the worm. The worm's rotation is restricted by the engagement of the grooves and the sliding teeth. The protective cover is then fastened and installed at the bottom of the double ear plate to cover the adjustment device, thus completing the installation. S5. Line routing adaptation adjustment: If different line routing requirements need to be adapted during installation, rotate the extension brackets at both ends of the bracket to make the guide block slide along the guide groove and adjust the unfolding angle of the extension bracket. When the extension bracket is adjusted to the target angle, the ball on the outside of the adjustment plate is embedded into the positioning hole at the corresponding position under the elastic force of the return spring, so as to fix the angle of the extension bracket and make the entire bracket adapt to the laying direction of the conductor.

[0016] Compared with the prior art, the advantages of this invention are: 1. Existing technology relies on the tightening of U-bolts and nuts, which makes it easy for the wrench to slip during high-altitude operations and makes it difficult to ensure even force distribution on both sides. This invention, through an adjustment device consisting of a worm gear, a first gear, and a second gear, allows the rotating central worm gear to drive the synchronous rotation of the two adjusting sleeves, converting the rotational motion of the pin shaft into precise axial lifting and lowering. This eliminates the step of tightening bolts at height, avoids the risk of tools falling, and the gear transmission ensures absolute synchronicity in tension adjustment, preventing clamp misalignment.

[0017] 2. Addressing the drawback of existing wire clamps requiring multiple people to hold them, this invention utilizes a hinged rotating plate as a lever, in conjunction with a pressure plate driven by an adjusting handle. During installation, simply flipping the rotating plate and engaging the locking handle forms a closed frame; then, rotating the adjusting handle with one hand clamps the wire firmly between the pressure plate and the pressure head plate. This frees up the workers' hands and is particularly suitable for high-altitude, single-person operations.

[0018] 3. In this invention, pressure plates with limit buckles are hinged to both ends of the pressure plate, forming a clamping surface in conjunction with anti-slip strips on the surface. During operation, the pressure plates can adaptively deflect with the slight vibration of the conductor, always conforming to the outer contour of the conductor, preventing the conductor from loosening or being damaged by fatigue.

[0019] 4. Existing wire clamp structures are fixed and difficult to adapt to the needs of corner poles or complex routing. This invention, by hinged extension heads at both ends of the clamp and utilizing the cooperation of guide grooves and guide blocks, allows the extension heads to expand or retract within a certain angle range. Combined with the snap-fit ​​positioning of ball bearings and positioning holes, the lead-out angle of the wire can be flexibly adjusted, solving the installation difficulties in non-linear conditions and enhancing the terrain adaptability of the fittings.

[0020] 5. This invention features a detachable protective cover at the bottom of the double-ear plate, enclosing the adjustment device and effectively protecting it from rain, dust, and ultraviolet radiation. The engagement of the adjusting block within the groove with the worm gear's sliding teeth achieves secondary mechanical locking after adjustment, preventing loosening during long-term operation and significantly extending the service life of the fittings. Attached Figure Description

[0021] Figure 1 This is a first-view structural diagram of the overall assembly of the present invention; Figure 2 This is a second-view structural diagram of the overall assembly of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a structural diagram of the regulating device of the present invention; Figure 5 This is an exploded schematic diagram of the regulating device of the present invention; Figure 6 This is a structural diagram of the pre-compression device of the present invention; Figure 7 This is a structural diagram of the extended support head of the present invention; Figure 8 This is a planar sectional view of the present invention; Figure 9 This is a partially enlarged schematic diagram of point A in the present invention; In the diagram: 1. Support clamp; 10. Double ear plate; 100. Protective cover; 101. Slide groove; 102. Adjusting block; 1021. Gear groove; 11. Adjustment area; 12. Positioning hole; 13. Ball bearing; 131. Return spring; 14. Guide groove; 2. Extension support head; 21. Adjusting plate; 22. Guide block; 3. Shaft seat; 32. Adjusting handle; 31. Movable sleeve; 30. Rotating plate; 301. Lock; 302. Adjusting lock handle; 4. Pressure plate; 41. Anti-slip strip; 42. Pressure head plate; 5. Positioning pin; 50. Pin shaft; 51. Snap ring; 52. Adjusting sleeve; 521. First gear; 522. Second gear; 6. Fixed sleeve; 60. Worm gear; 61. Adjusting slide head; 62. Sliding tooth; 7. Limit buckle. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Please see Figures 1-9 An adjustable tension guy wire fitting and its installation method, comprising the fitting body and the wire, as detailed in the following reference. Figure 1 and Figure 2 as well as Figure 3 The hardware body is specifically a bracket 1. The bracket 1 has a U-shaped structure with an open top. The bottom of the bracket 1 is provided with two double ear plates 10. The two double ear plates 10 are symmetrically arranged. The two ends of the double ear plates 10 are provided with retaining rings 51 on both sides of the bracket 1. An adjusting sleeve 52 is installed on the retaining ring 51. The adjusting sleeve 52 can rotate on the retaining ring 51 to ensure that the adjusting sleeve 52 does not get stuck or fall off.

[0024] In this embodiment, specific reference is made. Figure 3 and Figure 4 The device is equipped with a positioning pin 5. The positioning pin 5 is U-shaped, and the end of the positioning pin 5 is provided with a pin shaft 50. The pin shaft 50 passes through the adjusting sleeve 52 and extends to the bottom. The wire passes through the bracket 1 and is fixed by the positioning pins 5 on both sides of the bracket 1.

[0025] In this embodiment, the adjustment device is described in detail, and specific references are made. Figure 4 and Figure 5 An adjustment device is provided at the bottom of the double-ear plate 10. This device achieves precise and synchronous adjustment of the conductor tension through gear transmission and thread transmission. Specifically, the adjustment device includes a worm gear 60 arranged laterally at the center of the bottom end of the double-ear plate 10, and two sets of second gears 522 symmetrically arranged at the bottom of the double-ear plate 10 and directly below the adjustment sleeve 52. The inner ring of the first gear 521 is coaxially fixed with the outer wall of the adjustment sleeve 52, and the outer ring is connected to the first threaded hole on the inner wall of the adjustment sleeve 52. The second gear 522 is perpendicularly meshed with the first gear 521, and the worm gear 60 is connected to the second gear 522 through transmission. It should be noted that in order to ensure the synchronous rotation of the positioning pin 5, the thread in the adjustment sleeve 52 matches the thread of the pin 50. The rotation of the worm gear 60 ensures that the two pins 50 are subjected to synchronous force, so that the positioning pin 5 moves up and down synchronously.

[0026] When the operator rotates the adjusting slider 61 at one end of the worm gear 60, the worm gear 60 drives the second gear 522 to rotate, which in turn drives the first gear 521 to rotate through gear meshing. Since the first gear 521 is coaxially fixed with the adjusting sleeve 52, the adjusting sleeve 52 rotates synchronously. At this time, the pin 50 inserted in the adjusting sleeve 52 cannot rotate due to the radial limitation of the U-shaped positioning pin 5, and the rotational motion of the adjusting sleeve 52 is converted into the up-and-down motion of the pin 50 along its axial direction. By controlling the rotation direction and number of turns of the worm gear 60, the displacement of the pin 50 can be precisely controlled, thereby pulling the positioning pins 5 on both sides to move up and down synchronously, realizing stepless fine adjustment and uniform tightening of the conductor tension, and completely avoiding the problems of uneven force or wire clamp misalignment caused by traditional unilateral adjustment.

[0027] One end of the worm gear 60 extends outward and is equipped with an adjusting slide head 61, which protrudes from the side wall of the double ear plate 10, facilitating the operator to apply force to rotate and drive the worm gear 60. The other end of the worm gear 60 is fitted with a fixing sleeve 6, one end of which is fixedly connected to the bottom of the double ear plate 10, providing axial restraint for the worm gear 60 and preventing it from shifting during adjustment, thus ensuring transmission stability. A protective cover 100 is detachably installed at the bottom of the double ear plate 10. This protective cover 100 covers the outside of the adjusting device, effectively isolating it from external pollutants such as rainwater and dust, while also preventing foreign objects from getting stuck in the transmission structure, thus improving the reliability of the device's operation.

[0028] In this embodiment, a mechanical locking structure is provided to achieve efficient locking of the worm gear 60 after adjustment and to prevent tension attenuation caused by self-rotation due to vibration during operation. Specifically, as follows... Figure 5As shown, the worm 60 has a number of sliding teeth 62 densely distributed along its axial direction on its outer periphery. A corresponding groove 101 is provided at the bottom of the double-ear plate 10, and an adjusting block 102 is movably embedded within the groove 101. The adjusting block 102 can move radially along the groove 101, its inner arc surface tightly wrapping around the outer periphery of the worm 60, and multiple tooth grooves 1021 adapted to the shape of the sliding teeth 62 are provided on its inner arc surface. When the tension is adjusted to the correct position, the adjusting block 102 is pushed to slide radially inward along the groove 101, so that the tooth grooves 1021 precisely mesh with the sliding teeth 62 on the worm 60. This tooth meshing structure completely restricts the circumferential rotational freedom of the worm 60. Utilizing the rigid interlocking effect between the tooth surfaces, the position of the worm 60 is forcibly fixed, thereby locking the axial position of the pin 50 and ensuring the conductor's sustained gripping force under high load and strong wind vibration environments.

[0029] In this embodiment, specific reference is made. Figure 3 and Figure 6 A bearing seat 3 is fixed on one side of the clamp 1. A rotatable rotating plate 30 is hinged on the bearing seat 3. A pre-pressing device is integrated inside the rotating plate 30, which can temporarily press the wire into the clamp 1 during the installation stage to prevent the wire clamp from slipping during high-altitude operations.

[0030] The pre-compression device includes a pressure plate 4, an adjusting handle 32, and a movable sleeve 31. The pressure plate 4 is suspended directly above the support clamp 1, and the adjusting handle 32 is fixed at the center of its top surface. The movable sleeve 31 is embedded in the center of the rotating plate 30. The adjusting handle 32 is threaded through the movable sleeve 31 and fixedly connected to the top surface of the pressure plate 4. When the adjusting handle 32 is rotated, the adjusting handle 32 moves axially along the threaded pair on the inner wall of the movable sleeve 31, driving the pressure plate 4 to rise and fall synchronously, thereby flexibly adjusting the distance between the pressure plate 4 and the support clamp 1 to adapt to the pre-compression requirements of different specifications of wires.

[0031] The rotating plate 30 has a fixing component at its end to achieve quick locking. The fixing component includes a latch 301 and an adjusting handle 302: the adjusting handle 302 is hinged to the side of the rotating plate 30 away from the bearing seat 3, and the latch 301 is fixed to the outer wall of the support 1 at the corresponding end of the rotating plate 30. During installation, the rotating plate 30 is rotated around the hinge point of the bearing seat 3 toward the surface of the support 1 until the inner side of the rotating plate 30 is completely in contact with the outer wall of the support 1. Then, the adjusting handle 302 is fastened toward the latch 301, and a closed clamping frame can be quickly formed. Subsequent tension adjustment operations can be carried out without additional support.

[0032] In this embodiment, specific reference is made. Figure 2 and Figure 7 The bracket 1 has adjustable extension components at both ends, which can flexibly adjust the lead-out angle of the conductor according to the actual laying direction of the line, and adapt to the installation requirements of non-linear working conditions such as corner towers and irregular wiring.

[0033] The extension component includes two extension supports 2, which are hinged to both ends of the clamp 1. Adjustment areas 11 are correspondingly provided on the inner sides of both ends of the clamp 1. An adjustment plate 21 is fixed to the side of the extension support 2 facing the clamp 1, and the adjustment plate 21 can be fitted into the corresponding adjustment area 11. When the extension support 2 is fully retracted, the adjustment plate 21 is fully embedded in the adjustment area 11. A guide groove 14 is provided on the inner side of the adjustment area 11 along the angle adjustment direction. A guide block 22 is correspondingly fixed to the outer side of the adjustment plate 21. The guide block 22 is slidably embedded in the guide groove 14, forming a guiding constraint on the rotation trajectory of the extension support 2, ensuring that the extension support 2 can only smoothly unfold or retract along the direction defined by the guide groove 14, avoiding deviation or jamming during adjustment.

[0034] Specific reference Figure 4 and Figure 7 Multiple positioning holes 12 are arranged circumferentially in the adjustment area 11. Different positioning holes 12 correspond to different unfolding angles of the extension support head 2. Preferably, three positioning holes 12 are provided. The three positioning holes 12 correspond to unfolding angles of 0°, 15° and 30° of the extension support head 2, respectively. When the ball 13 is inserted into different positioning holes 12, the extension support head 2 is locked at the corresponding angle, realizing flexible adjustment of the wire support range. The outer side of the adjustment plate 21 is provided with an elastic element that is compatible with the positioning holes 12. The two work together to realize the angle positioning of the extension support head 2.

[0035] In this embodiment, specific reference is made. Figure 7 The positioning of the extension bracket 2 is achieved through an elastic element, specifically a ball bearing 13 and a return spring 131. One end of the return spring 131 is fixedly mounted on the outside of the adjusting plate 21, and the other end is fixedly connected to the ball bearing 13. In its natural state, the return spring 131 is in a pre-compressed state, continuously applying an outward pre-tightening force to the ball bearing 13. When the adjusting plate 21 is rotated to the target angle with the extension bracket 2, the ball bearing 13, pushed by the elastic force of the return spring 131, precisely embeds into the corresponding positioning hole 12, forming a stable snap-fit ​​engagement. This achieves rapid angle positioning of the extension bracket 2 and also prevents positioning failure due to vibration during line operation.

[0036] In this embodiment, specific reference is made. Figure 6 and Figure 8 as well as Figure 9 The pressure plate 4 has a pressure head plate 42 hinged to both ends. The pressure plate 4 has a limit buckle 7 at both ends. The pressure head plate 42 moves within the range of the limit buckle 7. The pressure head plate 42 and the inner wall of the bottom end of the pressure plate 4 are provided with anti-slip strips 41. After the hardware is put into operation, when the conductor is slightly displaced due to wind vibration and temperature fluctuation, the pressure plate 4 is in close contact with the outer surface of the conductor. The pressure head plate 42 hinged to both ends of the pressure plate 4 can adaptively deflect within the limit of the limit buckle 7, always in contact with the outer surface of the conductor. Together with the anti-slip strips 41 on the pressure plate 4 and the pressure head plate 42, it continuously provides a stable gripping force to counteract the tension fluctuation caused by the displacement of the conductor.

[0037] An adjustable tension guy wire fitting and its installation method include the following steps: S1. Pre-positioning of bracket 1: Place bracket 1 at the position corresponding to the wire to be installed, so that the wire is placed in the arc groove of bracket 1. Rotate plate 30 around the hinge point of shaft seat 3 to the other side of bracket 1 until the inner side of rotating plate 30 is in contact with the outer surface of bracket 1. Fasten the adjusting lock handle 302 at the end of rotating plate 30 towards the lock buckle 301 so that rotating plate 30 and bracket 1 form a closed clamping frame, and complete the preliminary positioning of bracket 1. S2. Pre-tightening of the wire: Rotate the adjusting handle 32. The adjusting handle 32 is screwed in along the inner wall of the movable sleeve 31, which drives the pressure plate 4 fixedly connected to it to move downward, gradually reducing the distance between the pressure plate 4 and the support 1, until the anti-slip strip 41 on the bottom surface of the pressure plate 4 and the pressure head plate 42 is initially pressed on the outer circumference of the wire. S3. Positioning pin 5 assembly: Positioning pin 5 is straddled on the retaining rings 51 on both sides of the clamp 1, so that the pin shafts 50 at both ends of positioning pin 5 are aligned with the inlets of the adjusting sleeve 52 at the bottom of the double ear plate 10. Push positioning pin 5 downward until the pin shaft 50 is fully inserted into the adjusting sleeve 52, and the thread on the outer wall of the pin shaft 50 forms a screw connection with the central threaded hole of the first gear 521 on the inner wall of the adjusting sleeve 52. Rotate the adjusting slide head 61 to make the worm 60 rotate in the forward or reverse direction. The worm 60 drives the second gear 522 that meshes with it to rotate. The second gear 522 synchronously drives the first gear 521 that meshes with it to rotate. The first gear 521 drives the adjusting sleeve 52 to rotate around its own axis. This causes the positioning pin 5 to move up and down, pulling the clamp 1 to adjust the tightness of the fit with the wire until the wire tension reaches the design threshold. S4. Adjustment device self-locking and protection: After the tension is adjusted to the correct position, the adjustment block 102 is moved radially so that the multiple grooves 1021 on the inner wall of the adjustment block 102 are fully engaged with the sliding teeth 62 on the outer periphery of the worm 60. The worm 60 is restricted from rotating by the engagement of the grooves 1021 and the sliding teeth 62. The protective cover 100 is fastened and installed at the bottom of the double ear plate 10 to cover the adjustment device and complete the installation. S5. Line routing adaptation adjustment: If different line routing requirements need to be met during installation, rotate the extension brackets 2 at both ends of the bracket 1 to slide the guide block 22 along the guide groove 14 and adjust the unfolding angle of the extension bracket 2. When the extension bracket 2 is adjusted to the target angle, the ball bearing 13 on the outside of the adjusting plate 21 is inserted into the corresponding positioning hole 12 under the elastic force of the return spring 131, thereby fixing the angle of the extension bracket 2 and making the bracket 1 adapt to the laying direction of the conductor.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tension-adjustable draw wire fitting, characterized in that, Includes the hardware body and the wire. The hardware body is specifically a bracket (1). The bottom of the bracket (1) is symmetrically provided with double ear plates (10). The two ends of the double ear plates (10) are provided with retaining rings (51) on both sides of the bracket (1). An adjusting sleeve (52) is installed on the retaining rings (51). The positioning pin (5) is U-shaped and has a pin shaft (50) at the end. The pin shaft (50) passes through the adjusting sleeve (52) and extends to the bottom. The wire passes through the bracket (1) and is fixed by the positioning pins (5) on both sides of the bracket (1). The bottom of the double ear plate (10) is provided with an adjusting device. Rotating the adjusting device causes the pin shaft (50) to move up and down in the adjusting sleeve (52) to change the tension between the wire and the bracket (1). A bearing seat (3) is provided on one side of the clamp (1), and a rotating plate (30) is hinged on the bearing seat (3). A pre-pressing device is provided on the rotating plate (30), and the pre-pressing device presses the wire tightly inside the clamp (1). The clamp (1) is equipped with adjustable extension parts at both ends so that the conductor can adapt to the needs of different line directions during installation.

2. The tension-adjustable draw wire fitting according to claim 1, characterized in that: The adjusting device includes a worm (60), a first gear (521), and a second gear (522). The first gear (521) and the second gear (522) are a set, and two sets are symmetrically arranged. The first gear (521) is located on the inner wall of the adjusting sleeve (52), and the second gear (522) is located at the bottom of the double ear plate (10). The second gear (522) meshes with the first gear (521). The worm (60) is located at the center of the bottom end of the double ear plate (10). The worm (60) is connected to the second gear (522) for transmission. Rotating the worm (60) drives the second gear (522) to rotate, which in turn drives the first gear (521) to rotate. The rotation of the adjusting sleeve (52) causes the pin (50) to move up and down, thereby realizing tension adjustment. An adjusting slide (61) is provided on one end of the worm (60) extending outward, and a fixing sleeve (6) is provided on the peripheral wall of the other end of the worm (60). One end of the fixing sleeve (6) is fixed to the bottom of the double ear plate (10). The bottom of the double ear plate (10) is detachably fitted with a protective cover (100).

3. The tension-adjustable draw wire fitting according to claim 2, characterized in that: The worm (60) is provided with a sliding tooth (62) on its outer periphery, and the bottom end of the double ear plate (10) is provided with a sliding groove (101). An adjusting block (102) is movably arranged in the sliding groove (101). The adjusting block (102) can be radially adjusted along the sliding groove (101). The adjusting block (102) is wrapped around the outer periphery of the worm (60), and the adjusting block (102) has multiple tooth grooves (1021) that cooperate with the sliding tooth (62).

4. The tension-adjustable draw wire fitting according to claim 3, characterized in that: The pre-pressing device includes a pressure plate (4), which is located above the clamp (1). An adjusting handle (32) is provided at the center of the pressure plate (4), and a movable sleeve (31) is provided at the center of the rotating plate (30). The adjusting handle (32) passes through the movable sleeve (31) and is fixedly connected to the pressure plate (4). Rotating the adjusting handle (32) causes the pressure plate (4) to move up and down, changing the distance between the pressure plate (4) and the clamp (1).

5. A tension-adjustable draw wire fitting according to claim 4, characterized in that: The rotating plate (30) is provided with a fixing component at its end. The fixing component includes a latch (301) and an adjusting handle (302). The adjusting handle (302) is hinged on the side away from the shaft seat (3). The latch (301) is fixed at the end of the rotating plate (30). The rotating plate (30) rotates around the hinge point of the shaft seat (3) and fits against the surface of the clamp (1). The adjusting handle (302) is engaged with the latch (301).

6. The tension-adjustable draw wire fitting according to claim 5, characterized in that: The extension component includes an extension head (2), and there are two extension heads (2). The two extension heads (2) are respectively hinged to both ends of the clamp (1). Adjustment areas (11) are respectively provided on the inner side of both ends of the clamp (1). An adjustment plate (21) is provided on the inner side of the extension head (2). The adjustment plate (21) can be embedded in the adjustment area (11). Multiple positioning holes (12) are provided in the adjustment area (11). The multiple positioning holes (12) correspond to different adjustment angles of the extension head (2). An elastic element that cooperates with the positioning hole (12) is provided on the outer side of the adjustment plate (21). A guide groove (14) is provided inside the adjustment area (11), and a guide block (22) is provided outside the adjustment plate (21). The guide block (22) is slidably disposed in the guide groove (14), and the extension support head (2) expands or retracts along the direction of the guide groove (14).

7. A tension-adjustable draw wire fitting according to claim 6, characterized in that: The pressure plate (4) is hinged to both ends with pressure head plates (42), and limit buckles (7) are provided at both ends of the pressure plate (4). The pressure head plates (42) move within the range of the limit buckles (7). Anti-slip strips (41) are provided on the inner walls of the bottom ends of the pressure head plates (42) and the pressure plate (4).

8. The tension-adjustable draw wire fitting according to claim 7, characterized in that: The elastic element specifically includes a ball (13) and a return spring (131). One end of the return spring (131) is fixed to the outside of the adjustment plate (21), and the other end of the return spring (131) is fixedly connected to the ball (13). The ball (13) and the positioning hole (12) are engaged and locked together.

9. A tension-adjustable guy wire fitting and its installation method, characterized in that, The application of the tension-adjustable draw wire fitting as described in claim 6 includes the following steps: S1. Pre-positioning of the bracket (1): Place the bracket (1) at the position corresponding to the wire to be installed, so that the wire is placed in the arc groove of the bracket (1). Rotate the rotating plate (30) around the hinge point of the shaft seat (3) to the other side of the bracket (1) until the inner side of the rotating plate (30) is in contact with the outer surface of the bracket (1). Fasten the adjusting handle (302) at the end of the rotating plate (30) towards the lock (301) so that the rotating plate (30) and the bracket (1) form a closed clamping frame, and complete the preliminary positioning of the bracket (1). S2. Pre-tightening of the wire: Rotate the adjusting handle (32), the adjusting handle (32) is screwed in along the inner wall thread of the movable sleeve (31), which drives the pressure plate (4) fixedly connected to it to move downward, gradually reducing the distance between the pressure plate (4) and the bracket (1) until the anti-slip strip (41) on the bottom surface of the pressure plate (4) and the pressure head plate (42) is initially pressed on the outer circumference of the wire. S3. Positioning pin (5) assembly: Place the positioning pin (5) across the retaining rings (51) on both sides of the clamp (1), so that the pin shafts (50) at both ends of the positioning pin (5) are aligned with the inlet of the adjusting sleeve (52) at the bottom of the double ear plate (10). Push the positioning pin (5) downward until the pin shaft (50) is fully inserted into the adjusting sleeve (52), and the thread on the outer wall of the pin shaft (50) and the threaded hole of the center of the first gear (521) on the inner wall of the adjusting sleeve (52) form a screw connection. Rotate the adjusting slide head (61) to make the worm (60) rotate in the forward or reverse direction. The worm (60) drives the second gear (522) meshing with it to rotate. The second gear (522) synchronously drives the first gear (521) meshing with it to rotate. The first gear (521) drives the adjusting sleeve (52) to rotate around its own axis. This causes the positioning pin (5) to move up and down, pulling the clamp (1) to adjust the tightness of the fit with the wire until the wire tension reaches the design threshold. S4. Adjustment device self-locking and protection: After the tension is adjusted to the correct position, move the adjustment block (102) radially so that the multiple grooves (1021) on the inner wall of the adjustment block (102) are fully engaged with the sliding teeth (62) on the outer periphery of the worm (60). The worm (60) is restricted from rotating by the engagement of the grooves (1021) and the sliding teeth (62). The protective cover (100) is fastened and installed at the bottom of the double ear plate (10) to cover the adjustment device and complete the installation. S5. Line routing adaptation adjustment: If different routing requirements need to be adapted during installation, rotate the extension brackets (2) at both ends of the bracket (1) to make the guide block (22) slide along the guide groove (14) and adjust the unfolding angle of the extension bracket (2). When the extension bracket (2) is adjusted to the target angle, the ball (13) on the outside of the adjustment plate (21) is embedded in the positioning hole (12) at the corresponding position under the elastic force of the reset spring (131), so as to fix the angle of the extension bracket (2) and make the bracket (1) as a whole adapt to the laying direction of the conductor.

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