A cross-pass rack with built-in or external cabling

Abstract

This application relates to the field of crossing frames for power and communication engineering, specifically disclosing a crossing frame with built-in or external wiring, comprising two columns, each column fitted with four ascending rods. One of the fourth ascending rods is fixed with a first connecting rod, the first connecting rod having an extension rod and a locking block fixed thereon. The first connecting rod is fixed with a mounting bracket, the mounting bracket having a first extension pulley, the extension rod having a second extension pulley and a third extension pulley, the column having an extension tension line, the mounting bracket also having a first retraction pulley, the extension rod also having a second retraction pulley, and the column body having a retraction tension line. The other fourth ascending rod is fixed with a second connecting rod, the second connecting rod being fixed with a crossbeam, the crossbeam having a first rotating bracket and a second rotating bracket, the first and second rotating brackets being fitted with a first locking clip and a second locking clip, and the first and second rotating brackets being connected with a first return spring and a second return spring.

Description

Technical Field

[0001] This application relates to the field of crossing frames for power and communication engineering, and in particular to a crossing frame with built-in or external wiring. Background Technology

[0002] In the tension stringing construction of power, communication and other engineering projects, the crossing frame is a key temporary facility that ensures the safe crossing of the line over obstacles. Its core function is to build a special frame so that the stretched conductor can safely avoid obstacles such as existing power lines, roads, and buildings. It ensures that the stretched conductor and the object being crossed always maintain a safe distance that meets the specifications, fundamentally preventing safety accidents caused by the conductor coming into contact with live lines or touching obstacles. It is an important support for ensuring construction safety and the quality of line erection.

[0003] As construction scenarios become increasingly complex, telescopic gantry frames have become one of the most widely used types due to their compact structure and flexible adjustment. Their core actuator is a box-shaped telescopic boom, which is usually composed of multiple sections. It is driven by a hydraulic power mechanism or an electric winch to achieve synchronous extension and retraction. The telescopic boom is equipped with a docking connector at the front end, which can meet the precise docking requirements of the two sides of the boom and adapt to construction scenarios with different spans.

[0004] However, existing telescopic crossing frames still suffer from two major technical limitations in practical applications, making it difficult to meet complex construction needs: Firstly, existing crossing frames typically use a single horizontal bar as the conductor support component. When multiple conductors are distributed longitudinally in a construction scenario, such as in multi-circuit line installations, the horizontal bar cannot independently and precisely lift and adjust each individual conductor, easily leading to conductor position misalignment and mutual interference, affecting installation accuracy and construction efficiency. Secondly, the winch cables in their electric winch devices are generally exposed, constantly exposed to outdoor construction environments, making them susceptible to corrosion from rain, dust, and corrosive gases. This causes accelerated rusting and aging, shortening service life, increasing maintenance costs, and potentially causing equipment failure due to cable damage. Furthermore, exposed cables disrupt the overall structure's neatness and aesthetics. These problems directly restrict the applicability and reliability of telescopic crossing frames in complex line construction.

[0005] The technical problem this application aims to solve is: how to accurately lift and provide a cross-bracing rack with built-in and external cabling among multiple longitudinally distributed cables. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide a crossing frame that can achieve precise lifting among multiple longitudinal cables and has a dual wiring scheme of built-in and external winch cables.

[0007] The technical solution adopted in this application is as follows: a cross-connector with built-in or external wiring, comprising at least two columns, wherein a first lifting rod, a second lifting rod, a third lifting rod, and a fourth lifting rod are sequentially mounted on the columns from bottom to top. A first connecting rod is fixed to the top of the fourth lifting rod. An extension rod that slides within the first connecting rod is provided, and a locking block is fixed to one end of the extension rod. A mounting frame is fixed to the outside of the first connecting rod, and a first extension pulley is provided within the mounting frame. A second extension pulley and a third extension pulley are respectively provided at both ends of the extension rod. An extension tension wire is provided outside the column, and the extension tension wire passes through the first extension pulley, sequentially winds around the second and third extension pulleys, and is tied to the side of the extension rod away from the locking block. The mounting frame also includes... The first retractable pulley, the extension rod near the second extension pulley is also provided with a second retractable pulley, the column body is also provided with a retractable tension line, the retractable tension line passes through the first retractable pulley, is wound around the second retractable pulley and is tied to the extension rod near the locking block, the top of the other fourth lifting rod is fixed with a second connecting rod, one end of the second connecting rod is fixed with a crossbeam, the top of the crossbeam is provided with a first rotating bracket and a second rotating bracket that rotate with it, the ends of the first rotating bracket and the second rotating bracket that are close to each other are respectively installed with a first locking clip and a second locking clip with clearance fit, the other ends of the first rotating bracket and the second rotating bracket are respectively connected with a first return spring and a second return spring, and a locking pull rope is tied at the connection of the first return spring and the second return spring.

[0008] The gantry is supported by at least two columns. From bottom to top, the columns are fitted with a first, second, third, and fourth lifting rod. The height of the gantry is adjusted by extending and retracting the lifting rods. One of the fourth lifting rods has a sliding extension rod inside its first connecting rod at the top, with a locking block at one end. An extension tension line outside the column passes through a first extension pulley inside the mounting frame, then winds around the second and third extension pulleys at both ends of the extension rod, finally attaching to the side of the extension rod away from the locking block. Pulling the extension tension line drives the extension rod to extend towards the second connecting rod. The first retractor inside the mounting frame… The return pulley cooperates with the second return pulley of the extension rod. The return tension line outside the column passes through the first return pulley and around the second return pulley, and is tied to the side of the extension rod near the locking block. Pulling the return tension line can drive the extension rod to retract into the first connecting rod. The second connecting rod at the top of the other fourth lifting rod is connected to the first rotating bracket and the second rotating bracket through the crossbeam. The two brackets are equipped with a first locking clip and a second locking clip with a gap fit at their near ends. The other end is connected to the first return spring and the second return spring. The connection of the two springs is tied with a locking pull rope. Pulling the locking pull rope can control the opening and closing of the two clips, realizing the fixing or release of the extension rod locking block.

[0009] In some embodiments, both the first and second rotating supports have limit grooves, and each limit groove contains a limit piece connected to either the first or second locking clip. The first rotating support and the first return spring, as well as the second rotating support and the second return spring, each have a return piece connecting them. A fixing pin connects the first and second return springs. A locking cord is attached to the fixing pin. Locking cords are attached to the connection points of the first and second return springs and the fixing pin, respectively. Pulling the locking cords downwards causes the two locking cords to move downwards along both sides of the fixing pin. The first and second return springs then move the first or second locking clip towards the center of the crossbeam. The first and second rotating supports move upwards along with the first and second locking clips, and the limit pieces move away from each other. Limit grooves are provided in both the first and second rotating supports, and each groove contains a limit piece connected to either the first or second locking clip. The limiting plate connected to the clamping plate or the second locking clamping plate prevents the clamping plate from detaching from the bracket during rotation, ensuring structural stability. The first rotating bracket and the first return spring, and the second rotating bracket and the second return spring are connected by a return plate, with a fixing pin between the springs. The locking rope is attached to the outside of the fixing pin. Pulling the locking rope downwards causes the fixing pin to move down, which in turn stretches the first and second return springs, causing the return plate to rotate towards the center of the crossbeam. This causes the first and second rotating brackets to rotate synchronously until the first and second locking clamping plates move upwards, and the limiting plates move away from each other. After releasing the locking rope, the springs return to their original position, causing the clamping plates to move down and close, restoring the initial gap. The cooperation between the limiting plate and the limiting groove eliminates the risk of the clamping plates falling off, improving structural safety. The design of the two return springs and the return plate enables the two clamping plates to automatically reset without manual adjustment. The concentrated force design of the fixing pin allows the locking rope to drive the two sets of clamping plates synchronously, ensuring consistent opening and closing actions and improving locking reliability.

[0010] In some implementations, when the extension tension line is pulled downwards, the extension rod moves towards the side closer to the second connecting rod; when the extension tension line is pulled downwards again, the extension rod moves away from the second connecting rod. When the locking rope is pulled downwards, the first and second locking clips rise and move away from each other. When the first and second return springs are in a tensioned state, the gap between the first and second locking clips is smaller than the diameter of the locking block. Pulling down the extension tension line causes the extension rod to move along the first connecting rod towards the second connecting rod; pulling down the extension tension line causes the extension rod to move away from the second connecting rod. Pulling down the locking rope causes the first and second locking clips to rise and move away from each other, widening the gap and facilitating the entry of the locking block. When the first and second return springs are in their natural state, the clip gap is smaller than the diameter of the locking block, and the locking block automatically locks itself after entry, preventing loosening. The small gap design of the clips in the natural state enables automatic locking of the locking block without additional fixing steps, improving construction efficiency.

[0011] In some embodiments, the ends of the first and second connecting rods that are furthest from each other are respectively equipped with vertically connected gathering rods. A balance rod is erected between the two first lifting rods. A connecting rod is erected outside the balance rod and attached to the second lifting rod. A rotating support is fixed outside the balance rod. The rotating support has two angle brackets surrounding the connecting rod. A tensioning pin is provided between the two angle brackets for tightening or loosening both. A rotating bracket is fixed to the other end of the connecting rod. An outer shell is fixed to the top of the second lifting rod connected to the connecting rod. The connecting rod is supported on the outer shell via the rotating bracket. Vertical gathering rods are erected at the furthest ends of the first and second connecting rods to prevent the wires from falling off. A balance rod is erected between the two first lifting rods, utilizing a triangular stability. The structure is fixed to improve the overall stability of the frame. A connecting rod is mounted outside the balance bar and rests on the second lifting bar. Two angle brackets surround the connecting rod on the rotating support outside the balance bar, with a tension pin between the angle brackets. Tightening the tension pins fixes the relative position of the connecting rod and the balance bar, while loosening them allows for adjustment. A rotating bracket is located at the other end of the connecting rod, and an outer shell is installed at the top of the second lifting bar. The connecting rod rests on the outer shell via the rotating bracket, allowing for fine-tuning of the angle during the extension and retraction of the lifting bar. The cooperation between the balance bar and the angle brackets allows for adjustment of the connection position according to the extension and retraction height of the lifting bar, adapting to different installation height requirements and enhancing structural flexibility. The rotating cooperation between the rotating bracket and the outer shell avoids stress concentration caused by rigid connections during the extension and retraction of the lifting bar, extending the service life of the equipment.

[0012] In some embodiments, the bottom of the column is provided with multiple base rods that rotatably engage with it. Each base rod has a receiving rod that slidably engages with it. A telescopic rod that telescopically engages with it is fitted inside the receiving rod. The telescopic rod includes a first telescopic support rod and a second telescopic support rod. Each of the first and second telescopic support rods is provided with a connecting member that rotatably engages with it. Each connecting member has a bolt screwed into it, and nuts are fitted over both bolts. A rotating cylinder is fixed to the outside of the connecting member for rotating it. The rotating cylinder drives both connecting members to rotate simultaneously. The connecting members, in conjunction with the bolts, drive the first and second telescopic support rods to move closer or further apart. The bottom of the column is provided with multiple base rods that rotatably engage with it. Each base rod has a receiving rod that slidably engages with it, and a telescopic rod that telescopically engages with it is fitted inside the receiving rod. The first telescopic support rod... The first and second telescopic supports are equipped with rotatable connectors, which are screwed onto the connectors. The two bolts are fitted with the same nut. A rotating cylinder is installed outside the connector. Rotating the rotating cylinder drives the two connectors to rotate synchronously. At this time, the bolts move relative to each other within the nut, causing the first and second telescopic supports to move closer or further apart, adjusting the bottom support range. The adjustable bottom support structure, namely the base rod, the receiving rod, and the telescopic rod, can adapt to different ground conditions. Especially on uneven sites, fine adjustments can be made to ensure the verticality of the column and improve the stability of the frame. The threaded engagement of the bolts and nuts allows for precise adjustment of the support length, and the threaded structure has self-locking properties to prevent loosening during support. The symmetrical distribution of multiple sets of base rods ensures that the column is subjected to uniform force, reducing the risk of tipping over and improving construction safety.

[0013] In some embodiments, an external fixing frame is fixed to the outside of the column, and a winch that rotates within the external fixing frame is provided. The winch has a handle that drives the winch. A first external pulley is provided outside the column, and a first internal pulley is provided inside the first lifting rod. The winch is equipped with a first external tension cable that is sequentially wound around the first external pulley and the first internal pulley. The other end of the first external tension cable is attached to the top of the first lifting rod. The external fixing frame is fixed to the outside of the column, and the winch that rotates within the frame is connected to the handle that drives the winch. Rotating the handle allows the winch to rotate. The winch is driven to wind up and unwind the first external tension cable. The first lifting rod has a first external pulley and a first internal pulley. The first external tension cable is led out from the winch, winds around the first external pulley and the first internal pulley in sequence, and is finally tied to the top of the first lifting rod. Turning the handle causes the winch to wind up the first external tension cable, and then pulls the first lifting rod up along the column. Turning the handle in the opposite direction releases the cable, and the first lifting rod descends under gravity. The external wiring structure avoids moisture and corrosion inside the cable, extends the service life of the cable, and reduces maintenance costs.

[0014] In some embodiments, the top of the first lifting rod is further provided with a second built-in pulley, and the bottom of the second lifting rod is provided with a third built-in pulley. The second built-in pulley is connected to a built-in steel cable wound around the third built-in pulley, with one end attached to the top of the second lifting rod. The second lifting rod and the third lifting rod, as well as the third lifting rod and the fourth lifting rod, use the aforementioned winding structure. The first lifting rod has a second built-in pulley at its top, and a third built-in pulley at its bottom. One end of the built-in steel cable is attached to the top of the second lifting rod, and the other end passes through the third built-in pulley and wraps around the second built-in pulley, ultimately forming a linkage between the first and second lifting rods. The second lifting rod and the third lifting rod, as well as the third... The lifting pole and the fourth lifting pole use the same winding structure of top pulley on the upper pole, bottom pulley on the lower pole, and built-in steel cable to achieve synchronous or graded lifting of multiple lifting pole sections. The steel cable is hidden inside the lifting pole and does not come into contact with the external environment, reducing dust and rainwater erosion. The built-in wiring solves the problem of corrosion of traditional exposed steel cables, improving the durability of the equipment, and is especially suitable for harsh construction environments such as rainy and dusty conditions. The linkage structure of the multi-section lifting poles can achieve synchronous height adjustment, avoiding the tilting of the frame caused by single-section adjustment, improving overall stability. The built-in steel cable is not exposed, making the frame appearance more regular, and at the same time preventing the steel cable from accidentally snagging on obstacles, reducing construction safety hazards.

[0015] In some embodiments, the second lifting rod is provided with inclined support connectors on both sides, which are rotatably connected to it. An inclined support leg is fixed to the end of each inclined support connector, and a rotating connector is fixed to the end of each inclined support leg. An inclined support base flush with the ground is fixed to the bottom of each rotating connector, and ground anchors are screwed to both ends of the inclined support base and penetrate deep into the ground. This inclined support structure uses the second lifting rod as the core force transmission hub, achieving stable support for the main structure through the coordinated operation of multiple components. When the second lifting rod is raised, lowered, or its position adjusted, the inclined support connectors rotatably connected to it on both sides rotate synchronously with the displacement of the second lifting rod. Since the inclined support connectors and the inclined support legs are fixed... Upon connection, the inclined support leg will extend to the preset support angle. This angle must ensure that the inclined support base can fully contact the ground, forming a complete support structure consisting of the second lifting rod, inclined support connector, inclined support leg, and inclined support base. After the inclined support structure extends to the preset support position, the structure is rigidly fixed to the ground by the canopy foot nails screwed to both ends of the inclined support base. The canopy foot nails are screwed into the ground in a direction perpendicular to the ground. The interlocking force between the nails and the soil restricts the horizontal displacement of the inclined support base. At the same time, the screwed structure ensures the connection strength between the nails and the base, preventing the nails from loosening due to vibration or load fluctuations, and further enhancing the stability of the entire inclined support system.

[0016] A cross-bracing frame with external cabling includes an external cable reel fixed to the outside of the column, a second external pulley fixed to the outside of the first lifting rod, and a second external tension cable with one end attached to the bottom of the first lifting rod and the other end attached to the winch. The winding structure between the first and second lifting rods, the second and third lifting rods, and the third and fourth lifting rods follows the aforementioned cable winding structure. An additional external cable reel is fixed to the outside of the column to guide the direction of the second external tension cable. The second external pulley is fixed to the outside of the first lifting rod, forming a guide and support path for the cable drive in conjunction with the external cable reel. The winch contains a second external tension cable. One end of the cable is fixed to the winch, and the other end first passes over the external reel to adjust its horizontal direction and avoid friction between the cable and the column. Then it passes over the second external pulley to change the direction of force on the cable, adapting to the lifting requirements of the first lifting rod. Finally, it is tied to the bottom of the first lifting rod. Turning the handle drives the winch to rotate clockwise, winding in the second external tension cable. The cable transmits tension through the external reel and the second external pulley, pulling the first lifting rod upwards along the column to achieve elevation. Turning the handle in the opposite direction rotates the winch counterclockwise, releasing the second external tension cable, and the first lifting rod... Under its own weight, it slides downwards along the column to achieve lowering. The connections between the first and second lifting rods, the second and third lifting rods, and the third and fourth lifting rods all utilize the same winding structure: an external cable reel fixed to the outside of the next lifting rod, a second external pulley fixed to the outside of the previous lifting rod, and a second external tension cable connecting the winch to the bottom of the previous lifting rod. The external cable reel guides the second external tension cable horizontally, preventing direct friction between the cable and the column and the outer walls of each lifting rod during transmission, reducing cable wear, and preventing jamming due to cable misalignment, ensuring smooth lifting. The operation is smooth, and the second external pulley changes the direction of force on the steel cable, making the winch tension more closely match the lifting trajectory of the ascending rod, reducing the risk of the ascending rod tilting due to the oblique tension of the steel cable. At the same time, the external cable reel guides the steel cable in a neat manner, avoiding multiple steel cables from getting tangled together, reducing safety hazards for construction personnel, and shortening adjustment time. The external wiring structure exposes the external cable reel and the second external pulley to the outside, so there is no need to disassemble the ascending rod when checking for problems such as steel cable wear and pulley jamming, making maintenance more convenient. Moreover, the steel cable has a longer service life due to reduced friction and neat guidance, indirectly reducing equipment replacement costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the connection structure between the balance bar and the connecting bar in this application; Figure 3 For the purposes of this application Figure 2 A magnified view of the structure at point A in the middle; Figure 4 For the purposes of this application Figure 2A magnified schematic diagram of the structure at point B in the middle; Figure 5 This is a partially enlarged structural diagram of the first connecting rod in this application; Figure 6 This is a partially enlarged structural diagram of the hidden first wiring rod and subsequent extension rod in this application. Figure 7 This is a partially enlarged structural diagram of the second connecting rod in this application; Figure 8 This is a partially enlarged structural diagram of the second connecting rod behind the concealed crossbeam in this application; Figure 9 This is a schematic diagram of the base rod and its upper structure in this application; Figure 10 For the purposes of this application Figure 9 A magnified schematic diagram of the structure at point C in the middle; Figure 11 This is a schematic diagram of the built-in wiring structure of this application; Figure 12 For the purposes of this application Figure 11 A magnified schematic diagram of the structure at point D in the middle; Figure 13 For the purposes of this application Figure 11 A magnified schematic diagram of the structure at point E in the middle; Figure 14 This is a schematic diagram of the external wiring structure of this application; Figure 15 For the purposes of this application Figure 14 A magnified schematic diagram of the structure at point F in the middle; Figure 16 For the purposes of this application Figure 14 A magnified schematic diagram of the structure at point G in the middle; Figure 17 This is a schematic diagram of the cross-sectional structure of the external wiring in this application; Figure 18 For the purposes of this application Figure 17 A magnified schematic diagram of the structure at point H in the middle; Figure 19 This is a schematic diagram of the left-side structure of this application; Figure 20 For the purposes of this application Figure 19 A magnified schematic diagram of the structure at point J in the middle; Figure 21 For the purposes of this application Figure 19 A magnified schematic diagram of the structure at point K. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Example 1: Please refer to Figure 1 This application provides a technical solution: a cross-connection frame with built-in wiring or external wiring, including at least two columns 1, and the columns 1 are sequentially fitted with a first lifting rod 2, a second lifting rod 3, a third lifting rod 4 and a fourth lifting rod 5 from bottom to top.

[0020] Please see Figures 5 to 8One of the fourth lifting rods 5 has a first connecting rod 13 fixed to its top. An extension rod 14, which slides within the first connecting rod 13, has a locking block 141 fixed to one end for engagement with the structure on the other side. A mounting bracket 16 is fixed to the outside of the first connecting rod 13. A first extension pulley 17 is located inside the mounting bracket 16. Second extension pulleys 171 and third extension pulleys 172 are located at both ends of the extension rod 14. An extension tension line 19 is located outside the column 1. The extension tension line 19 passes through the first extension pulley 17, winds around the second extension pulley 171 and the third extension pulley 172, and is tied to the side of the extension rod 14 furthest from the locking block 141. Pulling the extension tension line 19 drives the extension rod 14 to the other side. The extension rod 14 extends outwards and is equipped with a first retractable pulley 18 inside the mounting bracket 16. A second retractable pulley 181 is also provided on the side of the extension rod 14 near the second extension pulley 171. A retractable tension line 20 is also provided outside the column 1. The retractable tension line 20 is wound around the second retractable pulley 18 after passing through the first retractable pulley 18 and is tied to the side of the extension rod 14 near the locking block 141. Pulling the retractable tension line 20 can drive the extension rod 14 to retract into the first connecting rod 13. A second connecting rod 21 is fixed to the top of the fourth lifting rod 5. A crossbeam 22 is fixed to one end of the second connecting rod 21. A first rotating bracket 23 and a second rotating bracket 25 are provided on the top of the crossbeam 22 and rotate with it. The ends of the first rotating bracket 23 and the second rotating bracket 25 that are close to each other are respectively... A first locking clip 24 and a second locking clip 26 with clearance fit are installed to clamp the locking block 141 of the extension rod 14. A first return spring 29 and a second return spring 30 are respectively connected to the other ends of the first rotating bracket 23 and the second rotating bracket 25. A locking cord 32 is attached to the connection between the first return spring 29 and the second return spring 30. Pulling the locking cord 32 controls the opening and closing of the first locking clip 24 and the second locking clip 26. Limiting grooves 28 are provided in both the first rotating bracket 23 and the second rotating bracket 25. Limiting plates 27, respectively connected to the first locking clip 24 or the second locking clip 26, are provided in the limiting grooves 28 to prevent the clips from detaching from the bracket. The first rotating bracket 23 and the first return spring 29 are connected to the first locking clip 24 and the second locking clip 26. The second rotating bracket 25 and the second return spring 30 are respectively provided with return plates 271 connecting the two. A fixing pin 31 connects the first return spring 29 and the second return spring 30. The locking rope 32 is tied to the outside of the fixing pin 31. When the locking rope 32 is pulled down and the fixing pin 31 is moved down, the first return spring 29 and the second return spring 30 respectively drive the return plates 271 to rotate towards the center of the cross frame 22. The first rotating bracket 23 and the second rotating bracket 25 respectively drive the first locking clip 24 and the second locking clip 26 to move up, and the two limiting plates 27 move away from each other. When the locking rope 32 is released, the spring returns and drives the clips to move down and close, restoring the initial gap. The initial gap is less than the diameter of the locking block 141, thus realizing automatic locking.

[0021] Please see Figures 2 to 4 At the ends of the first connecting rod 13 and the second connecting rod 21, which are far apart from each other, a cable gathering rod 15 is installed vertically connected to both to prevent the wires from falling off. A balance rod 6 is installed between the two first lifting rods 2 to improve the overall stability of the frame. A connecting rod 7 is installed outside the balance rod 6 and is mounted on the second lifting rod 3. A rotating support 8 is fixed outside the balance rod 6. The rotating support 8 has two corner brackets 9 surrounding the connecting rod 7. A tensioning pin 10 is provided between the two corner brackets 9 for tightening or loosening both. The relative position of the connecting rod 7 and the balance rod 6 can be adjusted by the tensioning pin 10. A rotating bracket 12 is fixed to the other end of the connecting rod 7. An outer shell 11 is fixed to the top of the second lifting rod 3 connected to the connecting rod 7. The connecting rod 7 is mounted on the outer shell 11 through the rotating bracket 12 to accommodate the angle adjustment when the lifting rod is extended or retracted, and to avoid stress concentration caused by rigid connection.

[0022] Please see Figure 9 and 10 The bottom of the column 1 is provided with multiple base rods 33 that rotate with it. Each base rod 33 is provided with a receiving rod 34 that slides with it. Inside the receiving rod 34 is a telescopic rod 35 that telescopically engages with it. The telescopic rod 35 includes a first telescopic support rod 351 and a second telescopic support rod 352. The first telescopic support rod 351 and the second telescopic support rod 352 are respectively provided with connecting parts 37 that rotate with them. Each connecting part 37 is provided with a bolt 38 that is screwed to it. Nuts 39 are also provided on the outside of the two bolts 38. A rotating cylinder 36 is fixed to the outside of the connecting part 37 for rotating it. The rotating cylinder 36 drives the two connecting parts 37 to rotate simultaneously. The connecting parts 37, in conjunction with the bolts 38, drive the first telescopic support rod 351 and the second telescopic support rod 352 to move closer or further apart, adjusting the bottom support range to adapt to different ground conditions.

[0023] Please see Figures 11 to 13An external fixing frame 40 is fixed to the outside of the column 1. A winch 42, which rotates within the external fixing frame 40, is provided. The winch 42 has a handle 41 that drives it. A first external pulley 44 is located outside the first lifting rod 2, and a first internal pulley 45 is located inside the first lifting rod 2. A first external tension cable 43 is wound sequentially around the first external pulley 44 and the first internal pulley 45 on the winch 42. The other end of the first external tension cable 43 is attached to the top of the first lifting rod 2. Rotating the handle 41 drives the winch 42 to raise and lower the cable, thus raising and lowering the first lifting rod 2 and preventing the cable from becoming embedded inside the winch. To prevent moisture and corrosion, the top of the first lifting rod 2 is equipped with a second built-in pulley 46, and the bottom of the second lifting rod 3 is equipped with a third built-in pulley 47. The second built-in pulley 46 is connected to a built-in steel cable 48 that is wound around the third built-in pulley 47 and the other end is tied to the top of the second lifting rod 3. The second lifting rod 3 and the third lifting rod 4, and the third lifting rod 4 and the fourth lifting rod 5 use the above-mentioned winding structure of the top pulley of the upper rod plus the bottom pulley of the lower rod plus the built-in steel cable to realize the synchronous or graded lifting of multiple lifting rods. The built-in steel cable 48 is hidden inside the lifting rod to reduce external environmental corrosion and improve durability.

[0024] Please see Figures 19 to 21 The second lifting rod 3 has inclined support connectors 55 on both sides, which are rotatably connected to it. An inclined support leg 54 is fixed to the end of each inclined support connector 55, and a rotating connector 57 is fixed to the end of each inclined support leg 54. An inclined support base 56, flush with the ground, is fixed to the bottom of the rotating connector 57. Two ends of the inclined support base 56 are respectively provided with ground anchors 58 that are screwed to it and penetrate deep into the ground. This inclined support structure uses the second lifting rod 3 as the core force transmission hub, achieving stable support for the main structure through the coordinated operation of multiple components. When the second lifting rod 3 is raised, lowered, or its position adjusted, the inclined support connectors 55 rotatably connected to it on both sides will rotate synchronously with the displacement of the second lifting rod 3. Since the inclined support connectors 55 and the inclined support legs 54 are fixed... Upon connection, the inclined support leg 54 will extend to the preset support angle. This angle must ensure that the inclined support base 56 can fully contact the ground, forming a complete support structure consisting of the second lifting rod 3, the inclined support connector 55, the inclined support leg 54, and the inclined support base 56. After the inclined support structure extends to the preset support position, the structure is rigidly fixed to the ground by the canopy foot nails 58 screwed to both ends of the inclined support base 56. The canopy foot nails 58 are screwed into the ground in a direction perpendicular to the ground. The interlocking force between the nails and the soil restricts the horizontal displacement of the inclined support base 56. At the same time, the screwed structure ensures the connection strength between the nails and the base, preventing the nails from loosening due to vibration or load fluctuations, and further enhancing the stability of the entire inclined support system.

[0025] Example 2: Please refer to Figures 14 to 18An external cable reel 51 is fixed to the outside of column 1, and a second external pulley 53 is fixed to the outside of the first lifting rod 2. A second external tension cable 50, passing through the external cable reel 51 and the second external pulley 53 and with its other end attached to the bottom of the first lifting rod 2, is wound within the winch 42. The winding structure described above is used between the first lifting rod 2 and the second lifting rod 3, the second lifting rod 3 and the third lifting rod 4, and the third lifting rod 4 and the fourth lifting rod 5. An additional external cable reel 51 is fixed to the outside of column 1 to guide the direction of the second external tension cable 50. The second external pulley 53 is fixed to the outside of the first lifting rod 2, and together with the external cable reel 51, forms the guiding and support path for the cable drive. The winch 42 contains a second external tension cable 50. One end of the cable is fixed to the winch 42, and the other end first passes over the external reel 51 to adjust its horizontal direction and avoid friction between the cable and the column 1. Then it passes over the second external pulley 53 to change the direction of force on the cable, adapting to the lifting requirements of the lifting rod. Finally, it is tied to the bottom of the first lifting rod 2. Turning the handle 41 drives the winch 42 to rotate clockwise, winding up the second external tension cable 50. The cable transmits tension through the external reel 51 and the second external pulley 53, pulling the first lifting rod 2 to slide upward along the column 1, thus raising it. Turning the handle 41 in the opposite direction rotates the winch 42 counterclockwise, releasing the second external tension cable 50. 0. The first lifting rod 2 slides downward along the column 1 under its own weight, thus lowering the rod. The connections between the first lifting rod 2 and the second lifting rod 3, the second lifting rod 3 and the third lifting rod 4, and the third lifting rod 4 and the fourth lifting rod 5 all utilize the same winding structure: the outer coil 51 is fixed to the outside of the next lifting rod, and the second external pulley 53 and the second external tension cable 50 are fixed to the outside of the previous lifting rod. The outer coil 51 guides the second external tension cable 50 horizontally, preventing direct friction between the cable and the column 1 and the outer walls of each lifting rod during transmission, reducing cable wear, and preventing cable deviation. To prevent jamming and ensure smooth lifting, the second external pulley 53 alters the direction of force on the steel cable, making the pull of the winch 42 more closely match the lifting trajectory of the ascending rod, reducing the risk of the ascending rod tilting due to the oblique pull of the steel cable. Simultaneously, the external cable reel 51 guides the steel cable neatly, preventing multiple cables from tangling, reducing safety hazards for operators, and shortening adjustment time. The external wiring structure exposes the external cable reel 51 and the second external pulley 53, eliminating the need to disassemble the ascending rod for later inspections of steel cable wear and pulley jamming, making maintenance more convenient. Furthermore, the reduced friction and neat guidance of the steel cable extend its service life, indirectly reducing equipment replacement costs.

[0026] The working principle and usage process of this application are as follows: When using external wiring, rotating the winch handle 41 drives the first lifting rod 2 to rise and fall through the cooperation of the first external tension cable 43 with the first external pulley 44 and the first internal pulley 45; when using internal wiring, the internal cable 48 cooperates with the second internal pulley 46 and the third internal pulley 47 to achieve the graded lifting and lowering of the multi-section lifting rod, pulling the extension tension line 19, which passes through the first extension pulley 17, the second extension pulley 171 and the third extension pulley 47. The long pulley 172 drives the extension rod 14 to extend to the second connecting rod 21. Pulling the locking rope 32 causes the first locking clip 24 and the second locking clip 26 to open. After the locking block 141 enters, the rope is released, and the clips automatically reset and lock. When it is necessary to retract, the retraction tension line 20 can be pulled. Rotate the base rod 33 to adjust the angle, pull the receiving rod 34 and the telescopic rod 35, and rotate the rotating drum 36 to extend and retract the first telescopic support rod 351 and the second telescopic support rod 352 to ensure that the column 1 is vertical and stable.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of this application and are not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.

Claims

1. A cross-connector with built-in or external wiring, comprising at least two columns (1), wherein the columns (1) are sequentially fitted with a first lifting rod (2), a second lifting rod (3), a third lifting rod (4), and a fourth lifting rod (5) from bottom to top, characterized in that, One of the fourth lifting rods (5) is fixed to the top of a first connecting rod (13). The first connecting rod (13) is provided with an extension rod (14) that slides with it. One end of the extension rod (14) is fixed with a locking block (141). A mounting bracket (16) is fixed to the outside of the first connecting rod (13). The mounting bracket (16) is provided with a first extension pulley (17). The two ends of the extension rod (14) are respectively provided with a second extension pulley (171) and a third extension pulley (172). An extension tension line (19) is provided on the outside of the column (1). The extension tension line (19) passes through the first extension... The pulley (17) is sequentially wound around the second extension pulley (171) and the third extension pulley (172) and tied to the side of the extension rod (14) away from the locking block (141). The mounting bracket (16) is also provided with a first retractable pulley (18). The side of the extension rod (14) near the second extension pulley (171) is also provided with a second retractable pulley (181). The column (1) is also provided with a retractable tension line (20). The retractable tension line (20) is wound around the second retractable pulley (181) via the first retractable pulley (18) and tied to the side of the extension rod (14) near the locking block (141). Another fourth lifting rod (5) is fixed to the top of a second connecting rod (21). One end of the second connecting rod (21) is fixed to a crossbar (22). The top of the crossbar (22) is provided with a first rotating bracket (23) and a second rotating bracket (25) that rotate with it. The first rotating bracket (23) and the second rotating bracket (25) are respectively installed with a first locking clip (24) and a second locking clip (26) that are close to each other. The other ends of the first rotating bracket (23) and the second rotating bracket (25) are respectively connected to a first return spring (29) and a second return spring (30). A locking pull rope (32) is attached to the connection between the first return spring (29) and the second return spring (30).

2. A cross-connection frame with built-in or external wiring as described in claim 1, characterized in that, Both the first rotating bracket (23) and the second rotating bracket (25) have limit grooves (28). Each limit groove (28) contains a limit piece (27) that is connected to either the first locking clip (24) or the second locking clip (26). The first rotating bracket (23) and the first return spring (29), as well as the second rotating bracket (25) and the second return spring (30), are each provided with a return piece (271) connecting them. A fixing pin (31) connects the first return spring (29) and the second return spring (30). The locking pull rope (32) is attached to the outside of the fixing pin (31). The first return spring... Locking pull ropes are attached to the connection between (29) and the fixing pin (31) and the connection between the second return spring (30) and the fixing pin (31). When the locking pull rope (32) is pulled down, it causes the two locking pull ropes to move down along both sides of the fixing pin (31). The first return spring (29) and the second return spring (30) respectively drive the first locking clip (24) or the second locking clip (26) to move towards the center of the cross frame (22). The first rotating bracket (23) and the second rotating bracket (25) move up with the first locking clip (24) and the second locking clip (26) respectively. The two limiting plates (27) move away from each other.

3. A cross-connection frame with built-in or external wiring according to claim 2, characterized in that, When the extension tension line (19) is pulled down, the extension rod (14) moves toward the side closer to the second connecting rod (21). When the retractable tension line (20) is pulled down, the extension rod (14) moves toward the side away from the second connecting rod (21). When the locking pull rope (32) is pulled down, the first locking clip (24) and the second locking clip (26) rise and move away from each other. When the first return spring (29) and the second return spring (30) are in a tensioned state, the gap between the first locking clip (24) and the second locking clip (26) is less than the diameter of the locking block (141).

4. A cross-connection frame with built-in or external wiring as described in claim 1, characterized in that, The first connecting rod (13) and the second connecting rod (21) are respectively equipped with a wire gathering rod (15) that is vertically connected to them at their respective ends. A balance rod (6) is erected between the two first lifting rods (2). A connecting rod (7) is erected outside the balance rod (6) and is erected outside the second lifting rod (3). A rotating support (8) is fixed outside the balance rod (6). The rotating support (8) is provided with two corner brackets (9) surrounding the connecting rod (7). A tensioning pin (10) for tightening or loosening the two corner brackets (9) is provided between the two corner brackets (9). A rotating bracket (12) is fixed at the other end of the connecting rod (7). An outer shell (11) is fixed at the top of the second lifting rod (3) connected to the connecting rod (7). The connecting rod (7) is erected on the outer shell (11) through the rotating bracket (12).

5. A cross-connection frame with built-in or external wiring according to claim 1, characterized in that, The bottom of the column (1) is provided with a plurality of bottom rods (33) that rotate with it. The bottom rods (33) are provided with receiving rods (34) that slide with them. The receiving rods (34) are fitted with telescopic rods (35) that telescopically cooperate with them. The telescopic rods (35) include a first telescopic support rod (351) and a second telescopic support rod (352). The first telescopic support rod (351) and the second telescopic support rod (352) are respectively provided with connecting parts (37) that rotate with them. The connecting parts (37) are provided with bolts (38) that are screwed to them. Nuts (39) are fitted on the outside of the two bolts (38). A rotating cylinder (36) for rotating the connecting parts (37) is fixed on the outside of the connecting parts (37). The rotating cylinder (36) drives the two connecting parts (37) to rotate simultaneously. The connecting parts (37) cooperate with the bolts (38) to drive the first telescopic support rod (351) and the second telescopic support rod (352) to move closer to or further away from each other.

6. A cross-connection frame with built-in or external wiring according to claim 1, characterized in that, An external fixing frame (40) is fixed to the outside of the column (1). A winch (42) is provided inside the external fixing frame (40) and rotates therewith. A handle (41) is provided inside the winch (42) and drives therewith. A first external pulley (44) is provided outside the column (1). A first internal pulley (45) is provided inside the first lifting rod (2). A first external tension cable (43) is attached to the winch (42) and wound around the first external pulley (44) and the first internal pulley (45) in sequence. The other end of the first external tension cable (43) is attached to the top of the first lifting rod (2).

7. A cross-connection frame with built-in or external wiring according to claim 6, characterized in that, The first lifting rod (2) is also provided with a second built-in pulley (46) at the top, and the second lifting rod (3) is provided with a third built-in pulley (47) at the bottom. The second built-in pulley (46) is equipped with a built-in steel cable (48) that is wound around the third built-in pulley (47) and the other end is tied to the top of the second lifting rod (3). The second lifting rod (3) and the third lifting rod (4), and the third lifting rod (4) and the fourth lifting rod (5) use the above-mentioned winding structure.

8. A cross-connection frame with built-in or external wiring according to claim 1, characterized in that, The second lifting rod (3) is provided with inclined support connectors (55) on both sides, which are rotatably connected to it. The inclined support connector (55) is fixed with an inclined support leg (54) at the end. The inclined support leg (54) is fixed with a rotating connector (57) at the end. The bottom of the rotating connector (57) is fixed with an inclined support base (56) flush with the ground. The inclined support base (56) is provided with a canopy foot nail (58) at both ends, which is screwed to it and penetrates into the ground.

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