Suspension construction platform for bridge construction

Abstract

The invention relates to the technical field of bridge construction, and particularly discloses a suspension construction platform for bridge construction, which comprises two fixing frames arranged in axial symmetry, the bottoms of the fixing frames are fixedly connected with a first construction platform, and one side of the first construction platform is provided with a second construction platform; one side of the bottom of the second construction platform and the bottom of one of the first construction platforms are fixedly connected with two first mounting pipes, and one end of each first mounting pipe is fixedly connected with an inserting rod; the fixing frame is combined with the first construction platform body and the second construction platform body which are modularly designed, rapid splicing and stable connection are achieved, the electromagnetic attraction design of the inserting rods and the mounting pipes is matched with mechanical interlocking of the limiting rods and the clamping blocks, a double-locking mechanism is formed, the wind vibration resistance and the pulling resistance of the platform are remarkably improved, and the service life of the platform is prolonged. The whole system is easy and convenient to operate, short in installation time, stable in reuse performance and particularly suitable for bridge construction scenes needing frequent disassembly and assembly, and the construction efficiency and safety are effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge construction, and particularly relates to a suspended construction platform for bridge construction. Background Art

[0002] In the technical field of bridge construction, as an important high-altitude operation device, the development process of the suspended construction platform has evolved from simple to complex and from low efficiency to high efficiency. In the early stage, high-altitude operations in bridge construction mainly relied on traditional scaffolding or crane baskets. These devices had problems such as long erection time, high cost, and high safety risks. With the continuous progress of construction technology, the suspended construction platform has gradually become an indispensable part of bridge construction.

[0003] However, there are still some deficiencies in the design and use of the existing suspended construction platforms for bridge construction, especially in terms of construction efficiency. At present, most of the suspended construction platforms on the market use mechanical locking or simple magnetic adsorption and other methods for fixation. Although these fixation methods meet the construction requirements to a certain extent, there are still bottlenecks in frequent disassembly and rapid positioning. Especially in the construction of large bridges or bridges with complex structures, the disassembly and assembly efficiency of traditional suspended construction platforms has become a key factor restricting the construction progress. Therefore, it is necessary for the staff to improve it. Summary of the Invention

[0004] The purpose of the present invention is to provide a suspended construction platform for bridge construction to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A suspended construction platform for bridge construction, comprising: Two fixed frames arranged axially symmetrically; The bottom of the fixed frame is fixedly connected with a first construction platform, and a second construction platform is arranged on one side of the first construction platform; Two first installation pipes are fixedly connected between the bottom of one side of the second construction platform and the bottom of one of the first construction platforms. One end of the first installation pipe is fixedly connected with a plugging rod. An excitation coil is fixedly connected to the surface of the plugging rod. A permanent magnet is fixedly connected to the inner wall of the plugging rod. A pressure sensor is fixedly connected to the front end of the plugging rod. A contactor is fixedly connected to the inner wall of the first installation pipe, and the contactor is electrically connected to the excitation coil. Two second installation pipes are fixedly connected between the bottom of the other side of the second construction platform and the bottom of the other first construction platform. A plugging hole is opened at one end of the second installation pipe, and the inner wall of the plugging hole is sleeved on the surface of the plugging rod. A magnetically conductive metal bushing is fixedly connected to the inner wall of the plugging hole; A limiting hole is formed on one side of the second construction platform and one of the first construction platforms. A clamping groove is formed on the inner wall of the limiting hole. A limiting rod is fixedly connected to the other side of the second construction platform and the other first construction platform. A clamping block is rotatably connected to the top of the limiting rod, and the surface of the clamping block is inserted into the inner wall of the clamping groove.

[0006] Preferably, two compression springs are fixedly connected to the inner wall of the limiting rod, and the top ends of the two compression springs are fixedly connected to the bottom of the clamping block. An electric telescopic rod is fixedly connected to the inner wall of the limiting rod. A trapezoidal cushion block is installed at the output end of the electric telescopic rod, and the top of the trapezoidal cushion block abuts against the bottom of the clamping block.

[0007] Preferably, a connecting column is fixedly connected to the bottom of the second construction platform. A first servo motor is fixedly connected to the inner wall of the connecting column. A driving rod is installed at the output end of the first servo motor. A first driving gear is installed at the output end of the driving rod. A first transmission gear is meshed with the surface of the first driving gear. A movable rod is fixedly connected to the inner wall of the first transmission gear. Winding rods are fixedly connected to both ends of the movable rod. Assembly boxes are fixedly connected to both sides of the second construction platform, and both ends of the winding rod are rotatably connected to the inner wall of the assembly box. A connecting rope is wound around the surface of the winding rod, and a fixing buckle is fixedly connected to the top end of the connecting rope.

[0008] Preferably, a fixing rod is fixedly connected to the top of the fixing frame. Extension rods are inserted into both ends of the fixing rod. Hydraulic rods are fixedly connected to both sides of the inner wall of the fixing rod, and the output ends of the hydraulic rods are fixedly connected to the inner wall of the extension rod.

[0009] Preferably, tapered clamping plates are inserted into both the upper and lower sides of the fixing rod. A second servo motor is fixedly connected to the inner wall of the fixing rod. A transmission rod is installed at the output end of the second servo motor. Multiple groups of second driving gears are fixedly connected to the surface of the transmission rod. Connecting gear sets are meshed with the surface of the second driving gears.

[0010] Preferably, a second transmission gear is meshed with the surface of the connecting gear set. An adapter rod is fixedly connected to the inner wall of the second transmission gear. Threaded rods are fixedly connected to both ends of the adapter rod, and the two threaded rods are respectively a forward-threaded and a reverse-threaded. A threaded sleeve rod is threadedly connected to the surface of the threaded rod, and one end of the threaded sleeve rod is fixedly connected to the bottom of the tapered clamping plate. A limiting block is fixedly connected to the surface of the threaded sleeve rod, and the surface of the limiting block is slidably connected to the inner wall of the fixing rod.

[0011] Preferably, fences are fixedly connected to both sides of the top of the first construction platform and the second construction platform.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) Through the combination of a fixed frame and modularly designed first and second construction platforms, rapid splicing and stable connection are achieved. The electromagnetic adsorption design of the insertion rod and the installation pipe, combined with the mechanical interlock of the limit rod and the clamping block, forms a dual locking mechanism, significantly enhancing the anti-wind vibration ability and anti-pulling performance of the platform. The entire system is easy to operate, has a short installation time, and stable reusability, and is particularly suitable for bridge construction scenarios that require frequent disassembly and assembly, effectively improving construction efficiency and safety.

[0013] (2) Through the servo motor in the connecting column driving the gear transmission system, precise control of the retraction and extension of the connecting rope is achieved. The self-locking design of the fixed buckle and the use of high-strength connecting ropes provide additional safety protection for the platform, preventing accidental falling. Through multiple safety designs, the reliability of high-altitude operations is ensured, creating a safer working environment for construction workers.

[0014] (3) Through the combined design of the fixed rod and the extension rod, combined with the mechanical transmission of the hydraulic rod and the conical clamping plate, rapid adjustment and stable locking of the platform are achieved to meet the requirements of different bridge deck widths. The foldable design of the fence further enhances the portability and safety of the platform. This mechanism has both rapid adjustment and precise positioning capabilities through the synergistic effect of hydraulic telescoping and screw drive, and at the same time has excellent wear resistance and wind load resistance, providing an efficient and reliable solution for bridge construction. Description of the Drawings

[0015] Figure 1 is a perspective view of the present invention; Figure 2 is a perspective view of the second construction platform of the present invention; Figure 3 is a perspective view of the insertion rod of the present invention; Figure 4 is a perspective view of the limit rod of the present invention; Figure 5 is a perspective view of the connecting rope of the present invention; Figure 6 is a perspective view of the conical clamping plate of the present invention; Figure 7 is a perspective view of the extension rod of the present invention; In the figure: 1, fixed frame; 2, first construction platform; 3, second construction platform; 4, first installation pipe; 5, insertion rod; 6, excitation coil; 7, pressure sensor; 8, electrical connector; 9, second installation pipe; 10, insertion hole; 11, limiting hole; 12, limiting rod; 13, clamping block; 14, compression spring; 15, electric telescopic rod; 16, trapezoidal cushion block; 17, connecting column; 18, first servo motor; 19, driving rod; 20, first driving gear; 21, first transmission gear; 22, movable rod; 23, winding rod; 24, assembly box; 25, connecting rope; 26, fixing buckle; 27, fixing rod; 28, extension rod; 29, hydraulic rod; 30, conical clamping plate; 31, second servo motor; 32, transmission rod; 33, second driving gear; 34, connecting gear set; 35, second transmission gear; 36, connecting rod; 37, threaded rod; 38, threaded sleeve rod; 39, limiting block; 40, fence. Detailed implementation manner

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] Embodiment 1:

[0018] Please refer to Figures 1 to 7 As shown, a suspended construction platform for bridge construction includes: two symmetrically arranged fixed frames 1; The bottom of the fixed frame 1 is fixedly connected with a first construction platform 2, and a second construction platform 3 is arranged on one side of the first construction platform 2; On one side of the bottom of the second construction platform 3 and the bottom of one of the first construction platforms 2, two first installation pipes 4 are fixedly connected. One end of the first installation pipe 4 is fixedly connected with an insertion rod 5. The surface of the insertion rod 5 is fixedly connected with an excitation coil 6. A permanent magnet is fixedly connected to the inner wall of the insertion rod 5. The front end of the insertion rod 5 is fixedly connected with a pressure sensor 7. An electrical connector 8 is fixedly connected to the inner wall of the first installation pipe 4, and the electrical connector 8 and the excitation coil 6 are electrically connected to each other. On the other side of the bottom of the second construction platform 3 and the bottom of the other one of the first construction platforms 2, two second installation pipes 9 are fixedly connected. One end of the second installation pipe 9 is provided with an insertion hole 10, and the inner wall of the insertion hole 10 is sleeved on the surface of the insertion rod 5. A magnetically conductive metal bushing is fixedly connected to the inner wall of the insertion hole 10; A limiting hole 11 is provided on one side of the second construction platform 3 and one of the first construction platforms 2. A clamping groove is provided on the inner wall of the limiting hole 11. A limiting rod 12 is fixedly connected to the other side of the second construction platform 3 and the other first construction platform 2. A clamping block 13 is rotatably connected to the top of the limiting rod 12, and the surface of the clamping block 13 is inserted into the inner wall of the clamping groove. Two compression springs 14 are fixedly connected to the inner wall of the limiting rod 12, and the top ends of the two compression springs 14 are fixedly connected to the bottom of the clamping block 13. An electric telescopic rod 15 is fixedly connected to the inner wall of the limiting rod 12. A trapezoidal cushion block 16 is installed at the output end of the electric telescopic rod 15, and the top of the trapezoidal cushion block 16 abuts against the bottom of the clamping block 13.

[0019] During use, the fixing frame 1 serves as the core support structure and is rigidly connected to the bridge main body through high-strength connectors, providing a basic anchoring point for the entire platform. The first construction platform 2 and the second construction platform 3 adopt a modular segmented design and are quickly spliced through the first installation pipe 4 and the second installation pipe 9. The first installation pipe 4 is welded to the bottom edge of the first construction platform 2, and the second installation pipe 9 is fixed at the corresponding position at the bottom of the second construction platform 3. The surface of the insertion rod 5 is integrated with an excitation coil 6, a permanent magnet is embedded inside, and a pressure sensor 7 is installed at the front end. When the insertion rod 5 is inserted into the insertion hole 10 of the second installation pipe 9, the magnetic conductive metal bushing on the inner wall of the insertion hole 10 and the excitation coil 6 form a closed magnetic circuit, generating an adsorption force of more than 8 kN. The pressure sensor 7 monitors the contact pressure in real time and dynamically adjusts the current through the relay 8 to maintain the magnetic force stability. At the same time, the limiting hole 11 on the side of the second construction platform 3 and the limiting rod 12 on the side of the first construction platform 2 form an independent positioning system. The compression spring 14 arranged inside the limiting rod 12 pushes the clamping block 13 at the top to automatically snap into the clamping groove on the inner wall of the limiting hole 11, forming a primary mechanical lock; the electric telescopic rod 15 inside the limiting rod 12 drives the trapezoidal cushion block 16 to press against the bottom of the clamping block 13 upward, enhancing the anti-pulling ability through the self-locking effect of the inclined plane. This dual locking mechanism controls the displacement of the platform within 3 mm under the wind vibration condition, and the single-point anti-pulling force reaches 20 kN. The special contour design of the trapezoidal cushion block 16 ensures the smooth sliding of the clamping block 13, and at the same time, the compression spring 14 provides a continuous pre-tightening force to compensate for the wear gap. Through the synergistic effect of electromagnetic adsorption and mechanical interlocking, the entire system can complete the single-point installation of the construction platform within 3 minutes and still maintain more than 90% of its performance after being reused 5000 times, which is especially suitable for bridge construction scenarios that require frequent disassembly and assembly. Among the components, the first installation pipe 4 and the second installation pipe 9 ensure the precise alignment of the modular platform, the magnetic conductive metal bushing optimizes the magnetic circuit efficiency, the pressure sensor 7 and the relay 8 form an intelligent feedback system, and the mechanical interlocking of the limiting rod 12 and the clamping block 13 serves as a redundant guarantee for electromagnetic fixation, jointly constituting a safe and reliable suspended construction platform system.

[0020] Embodiment 2:

[0021] See also Figures 1 to 7 As shown, a connecting column 17 is fixedly connected to the bottom of the second construction platform 3, a first servo motor 18 is fixedly connected to the inner wall of the connecting column 17, a driving rod 19 is installed at the output end of the first servo motor 18, a first driving gear 20 is installed at the output end of the driving rod 19, a first driving gear 20 is meshingly connected to the surface of the first driving gear 20, a movable rod 22 is fixedly connected to the inner wall of the first transmission gear 21, both ends of the movable rod 22 are fixedly connected to winding rods 23, both sides of the second construction platform 3 are fixedly connected to assembly boxes 24, and both ends of the winding rod 23 are rotatably connected to the inner wall of the assembly box 24, a connecting rope 25 is wound around the surface of the winding rod 23, and a fixing buckle 26 is fixedly connected to the top of the connecting rope 25.

[0022] When in use, the connecting column 17 is fixed to the bottom of the second construction platform 3, and the first servo motor 18 is integrated inside to drive the driving rod 19 to rotate. The first driving gear 20 at the end of the driving rod 19 is meshed with the first transmission gear 21 to transmit power to the movable rod 22. The winding rods 23 connected at both ends of the movable rod 22 rotate synchronously in the assembly box 24. The high-strength connecting rope 25 (breaking strength ≥ 50kN) wound on the surface of the winding rod 23 is connected to the bridge superstructure through the fixing buckle 26. When the first servo motor 18 is started, the winding rod 23 is driven to rotate through the gear transmission system to realize the retraction and release control of the connecting rope 25, thereby accurately fixing the height position of the construction platform (adjustment accuracy ±5mm), the fixing buckle 26 adopts a self-locking design, which can automatically lock the connecting rope 25 when subjected to sudden loads to prevent the platform from accidentally falling. The whole system achieves smooth lifting and lowering through the closed-loop control of the servo motor. At the same time, the gear transmission mechanism (transmission efficiency ≥ 92%) ensures reliable power transmission. The rolling bearing in the assembly box 24 reduces the rotation resistance of the winding rod 23 by 60%, significantly improving the system response speed. It not only realizes the efficient vertical positioning of the construction platform (lifting speed 0.5m / s), but also its multiple safety designs (including motor overload protection, mechanical self-locking and emergency braking) ensure that the platform can immediately lock its position in the event of power failure or system failure, providing double protection for high-altitude operations.

[0023] Embodiment three:

[0024] See also Figures 1 to 7As shown in the figure, a fixed rod 27 is fixedly connected to the top of the fixing frame 1. Extension rods 28 are inserted at both ends of the fixed rod 27. Hydraulic rods 29 are fixedly connected to both sides of the inner wall of the fixed rod 27, and the output ends of the hydraulic rods 29 are fixedly connected to the inner wall of the extension rod 28. Tapered clamping plates 30 are inserted on both the upper and lower sides of the fixed rod 27. A second servo motor 31 is fixedly connected to the inner wall of the fixed rod 27. A transmission rod 32 is installed at the output end of the second servo motor 31. Multiple second driving gears 33 are fixedly connected to the surface of the transmission rod 32. A connecting gear set 34 is meshed with the surface of the second driving gears 33. A second transmission gear 35 is meshed with the surface of the connecting gear set 34. An adapter rod 36 is fixedly connected to the inner wall of the second transmission gear 35. Threaded rods 37 are fixedly connected to both ends of the adapter rod 36, and the two threaded rods 37 are respectively a forward-threaded and a reverse-threaded screw. A threaded sleeve rod 38 is threadedly connected to the surface of the threaded rod 37, and one end of the threaded sleeve rod 38 is fixedly connected to the bottom of the tapered clamping plate 30. A limit clamping block 39 is fixedly connected to the surface of the threaded sleeve rod 38, and the surface of the limit clamping block 39 is slidably connected to the inner wall of the fixed rod 27. Fences 40 are fixedly connected to both sides of the tops of the first construction platform 2 and the second construction platform 3.

[0025] During use, the fixed rod 27 is horizontally installed on the top of the fixing frame 1 as the main load-bearing frame. The hydraulic rods 29 on both sides of its inner part can push the extension rod 28 to achieve lateral expansion and contraction (stroke 500mm, thrust 30kN) to adapt to different bridge deck widths. The second servo motor 31 drives multiple second driving gears 33 through the transmission rod 32, drives the second transmission gear 35 to rotate through the connecting gear set 34. The adapter rod 36 transmits the power to the forward and reverse threaded rods 37 (pitch 6mm), so that the threaded sleeve rod 38 drives the tapered clamping plate 30 to move synchronously in both directions (speed 5mm / s). The 60° inclined plane design of the tapered clamping plate 30 generates a self-locking effect when it contacts the bridge structure (anti-slip force ≥ 15kN). The limit clamping block 39 slides in the guide rail on the inner wall of the fixed rod 27 to ensure the movement accuracy (error ≤ 0.5mm). The fence 40 adopts a folding design (height 1.2m), and can be quickly unfolded / retracted through a hinge mechanism. Through the combination of hydraulic expansion and contraction and screw drive, it can achieve both a rapid coarse adjustment of 200mm / s and a precise positioning ability of 0.1mm level. The surface of the tapered clamping plate 30 is laser-clad with a tungsten carbide coating (hardness HV1200) to ensure wear resistance during long-term use. The entire set of mechanisms can complete span adjustment and locking within 3 minutes and can withstand an 8-level wind load (wind pressure 1kN / m²) without displacement.

[0026] Example 4:

[0027] Please refer to Figures 1 to 7As shown in the figure, the main tower of a certain cross-river bridge is 180 meters high. It is necessary to inspect and maintain the cracks and anticorrosion layers on the outside of the tower body. The traditional scaffolding erection is time-consuming and risky. Using this suspended construction platform can quickly complete the erection of the high-altitude working surface and adapt to the curved surface structure of the main tower.

[0028] Fix two fixing frames 1 symmetrically on both sides of the top of the main tower through the fixing rod 27. The fixing rod 27 drives the extension rod 28 to extend to a span of 12 meters (covering the width of the tower body) through the hydraulic rod 29. The second servo motor 31 drives the conical clamping plate 30 to tightly press against the tower wall to form a stable support.

[0029] The first construction platform 2 and the second construction platform 3 are quickly spliced through the magnetic adsorption connection (adsorption force 8kN) of the insertion rod 5 and the second installation pipe 9. The clamping block 13 of the limiting rod 12 is synchronously clamped into the limiting hole 11, and the electric telescopic rod 15 presses against the trapezoidal cushion block 16 to complete the mechanical locking.

[0030] The first servo motor 18 in the connecting column 17 drives the winding rod 23 to release the connecting rope 25, so that the connecting rope 25 extends the fixing buckle 26 to the position fixed on the bridge deck. The fixing buckle 26 is fixed to the bridge deck equipment to automatically lock the cable.

[0031] Workers stand inside the platform protected by the fence 40 to detect and repair the tower body.

[0032] After the operation is completed, the electric telescopic rod 15 retracts the trapezoidal cushion block 16, the excitation coil 6 is powered off, and the platform is disassembled in sections. All recycling is completed within 3 hours.

[0033] Working principle: Fix two fixing frames 1 symmetrically on both sides of the top of the main tower through the fixing rod 27 as the load-bearing foundation of the entire platform.

[0034] The fixing rod 27 drives the extension rod 28 to extend to a span of 12 meters (covering the width of the tower body) through the hydraulic rod 29 to ensure that the platform covers the operation area.

[0035] The second servo motor 31 drives the transmission rod 32, drives the threaded rod 37 to rotate through the gear set, and makes the threaded sleeve rod 38 push the conical clamping plate 30 to tightly press against the tower wall. The 60° inclined surface design of the conical clamping plate 30 produces a self-locking effect (anti-slip force ≥ 15kN). Combined with the guiding action of the limiting block 39, a stable rigid support structure is formed.

[0036] The first construction platform 2 and the second construction platform 3 are docked by inserting the insertion rod 5 into the insertion hole 10 of the second installation pipe 9. After the excitation coil 6 on the surface of the insertion rod 5 is powered on, it forms a closed magnetic circuit with the magnetic conductive metal bushing on the inner wall of the insertion hole 10, generating an adsorption force of 8kN to ensure a firm connection.

[0037] Meanwhile, the clamping block 13 at the top of the limit rod 12 is automatically clamped into the clamping groove of the limit hole 11 under the push of the compression spring 14, forming a primary mechanical lock.

[0038] The electric telescopic rod 15 then acts, pushing the trapezoidal cushion block 16 into the inclined groove at the bottom of the clamping block 13, and further enhancing the anti-pulling ability through the self-locking effect of the 45° inclined plane, finally realizing the dual locking (magnetic attraction + mechanical) of the platform module.

[0039] The first servo motor 18 in the connecting column 17 drives the driving rod 19, and drives the winding rod 23 to rotate through gear transmission, releasing the connecting rope 25.

[0040] The fixed buckle 26 at the top of the connecting rope 25 (breaking strength ≥ 50 kN) extends to the preset anchor point on the bridge deck and automatically locks, serving as a redundant guarantee for anti-falling.

[0041] Workers carry out tower body inspection and repair operations on the platform protected by the fence 40 (height 1.2 m). The platform as a whole is designed to be immovable, and all structural components are fixed through rigid connections to ensure no risk of shaking.

[0042] After the operation is completed, the electric telescopic rod 15 retracts the trapezoidal cushion block 16 to release the mechanical lock; the excitation coil 6 is powered off, the magnetic attraction disappears, the plug-in rod 5 is manually pulled out, the hydraulic rod 29 contracts the extension rod 28, and the conical clamping plate 30 disengages from the tower wall. Finally, the platform is disassembled in sections, and the whole process can be completed within 3 hours.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A suspension construction platform for bridge construction, characterized in that, Including: Two fixing frames (1) arranged axially symmetrically; The bottom of the fixing frame (1) is fixedly connected with a first construction platform (2), and a second construction platform (3) is arranged on one side of the first construction platform (2); On one side of the bottom of the second construction platform (3), two first installation pipes (4) are fixedly connected to the bottom of one of the first construction platforms (2). One end of the first installation pipe (4) is fixedly connected with a plugging rod (5). The surface of the plugging rod (5) is fixedly connected with an exciting coil (6). A permanent magnet is fixedly connected to the inner wall of the plugging rod (5). A pressure sensor (7) is fixedly connected to the front end of the plugging rod (5). A relay (8) is fixedly connected to the inner wall of the first installation pipe (4), and the relay (8) is electrically connected to the exciting coil (6). On the other side of the bottom of the second construction platform (3), two second installation pipes (9) are fixedly connected to the bottom of the other first construction platform (2). One end of the second installation pipe (9) is provided with a plugging hole (10), and the inner wall of the plugging hole (10) is sleeved on the surface of the plugging rod (5). A magnetically conductive metal bushing is fixedly connected to the inner wall of the plugging hole (10); On one side of the second construction platform (3) and one of the first construction platforms (2), a limiting hole (11) is opened. A clamping groove is opened on the inner wall of the limiting hole (11). On the other side of the second construction platform (3) and the other first construction platform (2), a limiting rod (12) is fixedly connected. The top of the limiting rod (12) is rotatably connected with a clamping block (13), and the surface of the clamping block (13) is inserted into the inner wall of the clamping groove.

2. The suspended construction platform for bridge construction according to claim 1, characterized in that: Two compression springs (14) are fixedly connected to the inner wall of the limiting rod (12), and the top ends of the two compression springs (14) are fixedly connected to the bottom of the clamping block (13). An electric telescopic rod (15) is fixedly connected to the inner wall of the limiting rod (12). The output end of the electric telescopic rod (15) is provided with a trapezoidal cushion block (16), and the top of the trapezoidal cushion block (16) abuts against the bottom of the clamping block (13).

3. A suspension construction platform for bridge construction according to claim 1, characterized in that: A connecting column (17) is fixedly connected to the bottom of the second construction platform (3). A first servo motor (18) is fixedly connected to the inner wall of the connecting column (17). The output end of the first servo motor (18) is provided with a driving rod (19). The output end of the driving rod (19) is provided with a first driving gear (20). The surface of the first driving gear (20) is meshed with a first transmission gear (21). The inner wall of the first transmission gear (21) is fixedly connected with a movable rod (22). Winding rods (23) are fixedly connected to both ends of the movable rod (22). Assembly boxes (24) are fixedly connected to both sides of the second construction platform (3), and both ends of the winding rod (23) are rotatably connected to the inner wall of the assembly box (24). A connecting rope (25) is wound around the surface of the winding rod (23), and a fixing buckle (26) is fixedly connected to the top end of the connecting rope (25).

4. A suspended construction platform for bridge construction according to claim 1, wherein: A fixing rod (27) is fixedly connected to the top of the fixing frame (1). Extension rods (28) are inserted at both ends of the fixing rod (27). Hydraulic rods (29) are fixedly connected to both sides of the inner wall of the fixing rod (27), and the output ends of the hydraulic rods (29) are fixedly connected to the inner wall of the extension rod (28).

5. A suspension construction platform for bridge construction according to claim 4, characterized in that: Conical clamping plates (30) are inserted on both the upper and lower sides of the fixing rod (27). A second servo motor (31) is fixedly connected to the inner wall of the fixing rod (27). A transmission rod (32) is installed at the output end of the second servo motor (31). Multiple second driving gears (33) are fixedly connected to the surface of the transmission rod (32), and a connecting gear set (34) is meshed with the surface of the second driving gears (33).

6. The hanging construction platform for bridge construction according to claim 5, characterized in that: A second transmission gear (35) is meshed with the surface of the connecting gear set (34). An adapter rod (36) is fixedly connected to the inner wall of the second transmission gear (35). Threaded rods (37) are fixedly connected to both ends of the adapter rod (36), and the two threaded rods (37) are respectively a forward-thread and a reverse-thread. Threaded sleeve rods (38) are threadedly connected to the surface of the threaded rods (37), and one end of the threaded sleeve rod (38) is fixedly connected to the bottom of the conical clamping plate (30). A limit clamping block (39) is fixedly connected to the surface of the threaded sleeve rod (38), and the surface of the limit clamping block (39) is slidably connected to the inner wall of the fixing rod (27).

7. A suspended construction platform for bridge construction according to claim 1, characterized in that: Fences (40) are fixedly connected to both sides of the tops of the first construction platform (2) and the second construction platform (3).

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