Movable hanging basket for bridge construction

Abstract

The invention discloses a movable hanging basket for bridge construction, which comprises a movable load-carrying trolley, a counter weight is placed at the upper end of the movable load-carrying trolley, a height adjusting mechanism for adjusting the height is arranged at the front end of the movable load-carrying trolley, and a telescopic control mechanism for controlling the telescopic length is arranged on the surface of the height adjusting mechanism. The steering structure is arranged at the end part of the telescopic control mechanism and is used for controlling a rotating angle. According to the movable hanging basket for bridge construction, the self-adaptive balance weight adjusting structure is arranged, the sliding frame is in sliding fit with the hanging rod, so that the balance weight frame and the balance weight block can automatically and reversely move along with stretching and retracting of the movable hanging basket, and the gravity center distribution of the whole system is dynamically adjusted in real time; therefore, overturning moment generated by extension of a hanging basket cantilever or load change is effectively counteracted, the risk of equipment instability caused by center-of-gravity shift in the operation process is fundamentally solved, and the self-balancing capacity and the overall operation safety of equipment are enhanced.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a mobile suspended platform for bridge construction. Background Technology

[0002] A bridge construction suspended platform is a type of high-altitude work equipment specifically used for bridge construction, maintenance, and inspection. Essentially, it is a mobile working platform suspended from the bridge structure. Its basic structure typically includes core components such as a suspension mechanism, a basket, a hoist, safety protection devices, and an electrical control system. Driven by an electric motor or hydraulic system, the basket can move up, down, or horizontally along the bridge facade or under the bridge.

[0003] For example, Chinese Patent Publication No. (CN221721383U) discloses a suspended platform for bridge construction, which states: "This utility model includes a mobile vehicle, a suspended platform basket is fixedly connected to the bottom end of the basket pole, electric telescopic rods are provided on both sides of the top end of the trough plate, the output end of the electric telescopic rod is fixedly connected to the top end of the basket pole, an L-shaped plate is fixedly connected to the outer surface of the vehicle frame, a motor is provided on one side of the top end of the vehicle frame, a screw is fixedly connected to the output end of the motor, the outer surface of the screw rotates on the inner wall of the L-shaped plate, and the outer surface of the screw is threadedly connected to the inner wall of the rectangular block. This utility model, by setting an adjustment device, controls the sliding rod to slide on the inner wall of the vehicle frame by driving the screw to rotate through the motor, which can adjust the horizontal position of the suspended platform basket. This facilitates adjusting the horizontal position of the suspended platform basket according to the width of the bridge edge or adjusting the stopping position of the mobile vehicle according to the road surface conditions of the bridge, increasing the flexibility and practicality of the suspended platform during use."

[0004] In summary, the existing technology still has the following technical problems: the existing suspended platform may not be able to flexibly adjust the extension angle of the platform to adapt to the complex edge contour of the bridge, the horizontal movement may not be stable enough or pose safety hazards, and when one end of the platform extends or the load changes, there is a lack of an effective automatic counterweight adjustment mechanism to prevent the equipment from overturning or shaking due to the shift of the center of gravity, thus limiting its flexibility, safety and work efficiency. Therefore, it is necessary to propose a mobile suspended platform for bridge construction to provide a new technical solution to solve the technical problems mentioned in the above patent. Summary of the Invention

[0005] Therefore, it is necessary to provide a mobile suspended platform for bridge construction, XX, to address the aforementioned technical problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A mobile suspended platform for bridge construction.

[0008] The mobile scaffold used for bridge construction specifically includes a mobile load-bearing trolley, with a counterweight placed on the upper end of the mobile load-bearing trolley. The front end of the mobile load-bearing trolley is provided with a height adjustment mechanism for adjusting the height. The surface of the height adjustment mechanism is provided with a telescopic control mechanism for controlling the telescopic length. It also includes a steering structure provided at the end of the telescopic control mechanism for controlling the rotation angle.

[0009] A movable basket is provided at the bottom end of the steering structure, and a telescopic control structure is provided at the bottom end of the steering structure. The movable basket is slidably disposed inside the telescopic control structure, and an adaptive counterweight adjustment structure is provided at the bottom end of the movable basket.

[0010] As a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, the steering structure includes a suspended platform support frame disposed at the end of the telescopic control mechanism, a motor bracket is fixedly connected to the output end of the telescopic control mechanism, a first reduction motor is fixedly connected to the top surface of the motor bracket, and a second bevel gear is rotatably disposed at the transmission end of the first reduction motor.

[0011] In a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, the output end of the telescopic control mechanism is rotatably provided with a central drive shaft, the surface of the central drive shaft is fixedly connected with a first bevel gear, the bottom end of the central drive shaft is fixedly connected to the top surface of the suspended platform support frame, and the first bevel gear meshes with a second bevel gear.

[0012] As a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, the telescopic control structure includes side support plates symmetrically fixed on both sides of the suspended platform support frame, side guide wheels are rotatably provided inside the side support plates, and a low support plate is symmetrically fixedly connected to the bottom surface of the suspended platform support frame, with a bottom guide wheel rotatably provided inside the low support plate.

[0013] As a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, side guide frames are fixedly connected to both sides of the mobile suspended platform, and bottom guide frames are fixedly connected to the bottom surface of the mobile suspended platform. The side guide wheels are in close contact with the inner wall of the side guide frames, and the bottom guide wheels are in close contact with the bottom surface of the bottom guide frames.

[0014] As a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, two sets of winch positioning clamps are symmetrically fixedly connected inside the support frame of the suspended platform. A central linkage shaft is rotatably connected inside the two sets of winch positioning clamps. An annular winch is fixedly connected to the surface of the central linkage shaft. A cable is provided inside the annular winch. One end of the cable is fixedly connected to the annular winch. Hooks are fixedly connected to both ends of the mobile suspended platform. The hooks are fixedly connected to the end of the cable away from the annular winch.

[0015] In a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, a second reduction motor is fixedly connected to the surface of the suspended platform support frame, and a motor drive shaft is rotatably connected to the transmission end of the second reduction motor. The motor drive shaft is fixedly connected to one end of one of the central linkage shafts.

[0016] As a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, a protective cover is fixedly connected inside the suspended platform support frame. The protective cover is located between two winch positioning clamps. The ends of the central linkage shafts that are close to each other extend into the interior of the protective cover. Rotating rods are fixedly connected in a circular array inside the protective cover. A third bevel gear is rotatably connected to the surface of the rotating rods. A fourth bevel gear is fixedly connected to the ends of the two central linkage shafts that are close to each other. The fourth bevel gear meshes with the third bevel gear.

[0017] As a preferred embodiment of the mobile suspended platform for bridge construction provided by the present invention, the adaptive counterweight adjustment structure includes end positioning plates symmetrically fixedly disposed on the bottom surface of the mobile suspended platform. A suspension rod is fixedly connected to the middle of the end positioning plate. The suspension rod is disposed between two bottom guide frames. An adaptive guide frame is disposed at the bottom end of the suspension rod. The adaptive guide frame is disposed at the bottom end of the suspended platform support frame. A sliding frame is fixedly connected to the top surface of the adaptive guide frame. The sliding frame is slidably disposed on the top surface of the suspension rod. End limiting rods are fixedly connected to both ends of the adaptive guide frame. Counterweight frames are fixedly connected to both ends of the bottom surface of the adaptive guide frame. A counterweight block is fixedly disposed inside the counterweight frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The mobile suspended platform for bridge construction provided by this invention, by setting a steering structure composed of a first reduction motor, a first bevel gear and a second bevel gear, can drive the platform support frame and the mobile suspended platform to rotate horizontally, realizing flexible and precise adjustment of the working angle of the suspended platform. This effectively solves the problem that existing suspended platforms are difficult to adapt to the complex edge contours of bridges for multi-angle alignment operations, and significantly improves the adaptability and operating range of the equipment to different construction scenarios.

[0020] The mobile suspended platform for bridge construction provided by this invention achieves smooth and controllable horizontal telescopic movement of the mobile suspended platform along the platform's support frame by closely cooperating with the side guide wheels and bottom guide wheels in the telescopic control structure, and combining them with a drive system consisting of a second reduction motor, a ring winch, and cables. This overcomes the safety hazards that may exist when traditional suspended platforms move horizontally, such as swaying, jamming, or poor synchronization, and improves the stability and safety of high-altitude operations.

[0021] The mobile suspended platform for bridge construction provided by this invention features an adaptive counterweight adjustment structure. Through the sliding cooperation between the sliding frame and the suspension rod, the counterweight frame and counterweight blocks can automatically move in the opposite direction as the mobile suspended platform extends and retracts. This dynamically adjusts the center of gravity distribution of the entire system in real time, effectively counteracting the overturning moment caused by the extension of the suspended platform's cantilever or changes in load. This fundamentally solves the risk of equipment instability caused by center of gravity shift during operation, enhancing the equipment's self-balancing ability and overall operational safety. Attached Figure Description

[0022] To more clearly illustrate the solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of the mobile suspended platform for bridge construction provided by the present invention;

[0024] Figure 2 This is a rear view schematic diagram of the overall structure of the mobile suspended platform for bridge construction provided by the present invention.

[0025] Figure 3 A schematic diagram of the connection structure between the telescopic control mechanism and the steering structure of the mobile suspended platform for bridge construction provided by the present invention;

[0026] Figure 4 A schematic diagram of the connection structure between the telescopic control structure and the steering structure of the mobile suspended platform for bridge construction provided by the present invention;

[0027] Figure 5 A bottom view of the telescopic control structure for a mobile suspended platform used in bridge construction provided by the present invention.

[0028] Figure 6 A schematic diagram of the telescopic control structure for a mobile suspended platform used in bridge construction provided by the present invention;

[0029] Figure 7 The mobile suspended platform for bridge construction provided by the present invention Figure 6 Enlarged structural diagram at point A;

[0030] Figure 8 This is a schematic diagram of the adaptive counterweight adjustment structure for a mobile suspended platform used in bridge construction provided by the present invention.

[0031] The markings in the diagram are explained as follows:

[0032] 1. Mobile load-bearing trolley; 2. Height adjustment mechanism; 3. Telescopic control mechanism; 4. Steering structure; 5. Mobile suspended platform; 6. Telescopic control structure; 7. Adaptive counterweight adjustment structure; 8. Suspended platform support frame; 9. Motor bracket; 10. Central drive shaft; 11. First bevel gear; 12. First geared motor; 13. Second bevel gear; 14. Side support plate; 15. Side guide wheel; 16. Side guide frame; 17. Low support plate; 18. Bottom guide. 19. Wheel; 20. Bottom guide frame; 21. Winch positioning clamp; 22. Central linkage shaft; 23. Circular winch; 24. Cable; 25. Hook; 26. Second geared motor; 27. Motor drive shaft; 28. Protective cover; 29. ​​Rotating rod; 30. Third bevel gear; 31. Fourth bevel gear; 32. End positioning plate; 33. Hoisting rod; 34. Sliding frame; 35. Adaptive guide frame; 36. End limiting rod; 37. Counterweight frame; 38. Counterweight block. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0034] As described in the background art, when one end of the suspended platform extends or the load changes, there is a lack of an effective automatic counterweight adjustment mechanism to prevent the equipment from tipping over or swaying due to the shift in the center of gravity, thereby limiting its flexibility, safety and work efficiency.

[0035] To solve this technical problem, the present invention provides a mobile suspended platform for bridge construction.

[0036] For details, please refer to Figures 1-3 The mobile scaffold for bridge construction specifically includes a mobile load trolley 1, with a counterweight placed on the upper end of the mobile load trolley 1. The front end of the mobile load trolley 1 is provided with a height adjustment mechanism 2 for adjusting the height. The surface of the height adjustment mechanism 2 is provided with a telescopic control mechanism 3 for controlling the telescopic length. It also includes a steering structure 4 provided at the end of the telescopic control mechanism 3 for controlling the rotation angle.

[0037] The bottom end of the steering structure 4 is provided with a movable basket 5, and the bottom end of the steering structure 4 is provided with a telescopic control structure 6. The movable basket 5 is slidably disposed inside the telescopic control structure 6, and the bottom end of the movable basket 5 is provided with an adaptive counterweight adjustment structure 7.

[0038] The mobile suspended platform for bridge construction provided by this invention features an adaptive counterweight adjustment structure 7. Through the sliding engagement of the sliding frame 33 and the suspension rod 32, the counterweight frame 36 and the counterweight block 37 can automatically move in the opposite direction as the mobile suspended platform 5 extends and retracts. This dynamically adjusts the center of gravity distribution of the entire system in real time, effectively counteracting the overturning moment caused by the extension of the suspended platform cantilever or changes in load. This fundamentally solves the risk of equipment instability caused by center of gravity shift during operation, enhancing the equipment's self-balancing ability and overall operational safety.

[0039] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0040] Please refer to Figures 2-8 A mobile suspended platform for bridge construction includes a mobile load trolley 1, a counterweight placed on the upper end of the mobile load trolley 1, a height adjustment mechanism 2 for adjusting the height at the front end of the mobile load trolley 1, a telescopic control mechanism 3 for controlling the telescopic length on the surface of the height adjustment mechanism 2, and a steering structure 4 disposed at the end of the telescopic control mechanism 3 for controlling the rotation angle.

[0041] The bottom end of the steering structure 4 is provided with a movable basket 5, the bottom end of the steering structure 4 is provided with a telescopic control structure 6, the movable basket 5 is slidably disposed inside the telescopic control structure 6, and the bottom end of the movable basket 5 is provided with an adaptive counterweight adjustment structure 7.

[0042] The entire device is based on a movable load-bearing trolley 1, and the overall stability during operation is ensured by configuring counterweights. The combination of the height adjustment mechanism 2 and the telescopic control mechanism 3 enables the initial positioning and adjustment of the suspended platform in the vertical direction and the horizontal extension distance.

[0043] Specifically, the steering structure 4 includes a basket support frame 8 disposed at the end of the telescopic control mechanism 3, a motor bracket 9 fixedly connected to the output end of the telescopic control mechanism 3, a first reduction motor 12 fixedly connected to the top surface of the motor bracket 9, and a second bevel gear 13 rotatably disposed at the transmission end of the first reduction motor 12.

[0044] The suspended platform support frame 8 is the suspension and rotation base for the entire suspended platform and telescopic mechanism. Power is provided by the first geared motor 12, and its output torque is transmitted to the first bevel gear 11 meshing with it through the second bevel gear 13. The first bevel gear 11 is fixedly connected to the central drive shaft 10, and the lower end of the central drive shaft 10 is fixedly connected to the suspended platform support frame 8, while the upper end is rotatably set at the output end of the telescopic control mechanism 3.

[0045] Specifically, the output end of the telescopic control mechanism 3 is rotatably provided with a central drive shaft 10, the surface of the central drive shaft 10 is fixedly connected with a first bevel gear 11, the bottom end of the central drive shaft 10 is fixedly connected with the top surface of the basket support frame 8, and the first bevel gear 11 meshes with a second bevel gear 13.

[0046] Specifically, the telescopic control structure 6 includes side support plates 14 symmetrically fixed on both sides of the suspended basket support frame 8. Side guide wheels 15 are rotatably arranged inside the side support plates 14. A low support plate 17 is symmetrically fixedly connected to the bottom surface of the suspended basket support frame 8. A bottom guide wheel 18 is rotatably arranged inside the low support plate 17.

[0047] Specifically, the two sides of the mobile suspended basket 5 are fixedly connected to side guide frames 16, the bottom surface of the mobile suspended basket 5 is fixedly connected to bottom guide frames 19, the side guide wheels 15 are in close contact with the inner wall of the side guide frames 16, and the bottom guide wheels 18 are in close contact with the bottom surface of the bottom guide frames 19.

[0048] The core of the telescopic control structure 6 is a set of guide wheels. The side guide wheels 15 on the side support plate 14 clamp the side guide frame 16 of the mobile basket 5 from both sides, restricting the left and right swing of the basket in the horizontal plane in the Y-axis direction. The bottom guide wheels 18 installed on the low support plate 17 at the bottom of the basket support frame 8 support and constrain the bottom guide frame 19 of the mobile basket 5 from below, mainly preventing the basket from sagging or tilting in the Z-axis direction. The side guide frame 16 and the bottom guide frame 19 form the track on the basket, which closely cooperates with the guide wheel set fixed on the support frame to form a multi-point sliding pair. This design ensures that the mobile basket 5 can only move smoothly along the preset straight path in the X-axis direction during the extension or retraction process, effectively avoiding jamming, swaying or overturning, and providing a stable and low-friction moving foundation for subsequent drive.

[0049] Specifically, two sets of winch positioning clamps 20 are symmetrically fixedly connected inside the suspended basket support frame 8. The two sets of winch positioning clamps 20 are respectively rotatably connected to a central linkage shaft 21. An annular winch 22 is fixedly connected to the surface of the central linkage shaft 21. A cable 23 is provided inside the annular winch 22. One end of the cable 23 is fixedly connected to the annular winch 22. Hooks 24 are fixedly connected to both ends of the mobile suspended basket 5. The hooks 24 are fixedly connected to the end of the cable 23 away from the annular winch 22.

[0050] Two annular winches 22 are installed at both ends inside the suspended platform frame 8 via a central linkage shaft 21. Two cables 23 are each wound around one winch, and their free ends are connected to both ends of the movable suspended platform 5 via hooks 24. A second geared motor 25 serves as the power source, directly driving one of the central linkage shafts 21 to rotate via a motor drive shaft 26. When the second geared motor 25 starts, the directly driven winch begins to wind or release the cable 23, thereby pulling or releasing one end of the suspended platform. Crucially, the two winches need to achieve synchronous reverse rotation through a linkage mechanism described later; that is, one winds the cable while the other releases it. This ensures smooth traction of the suspended platform to one side without causing the cable 23 to slack or generating excessive unilateral tension, thus achieving controllable, bidirectional telescopic movement of the suspended platform on the guide structure.

[0051] Specifically, a second reduction motor 25 is fixedly connected to the surface of the suspended basket support frame 8, and a motor drive shaft 26 is rotatably connected to the transmission end of the second reduction motor 25. The motor drive shaft 26 is fixedly connected to one end of one of the central linkage shafts 21.

[0052] Specifically, a protective cover 27 is fixedly connected inside the suspended basket support frame 8. The protective cover 27 is located between the two winch positioning clamps 20. The ends of the central linkage shafts 21 that are close to each other extend into the interior of the protective cover 27. Rotating rods 28 are fixedly connected in a circular array inside the protective cover 27. A third bevel gear 29 is rotatably connected to the surface of the rotating rods 28. A fourth bevel gear 30 is fixedly connected to the ends of the two central linkage shafts 21 that are close to each other. The fourth bevel gear 30 meshes with the third bevel gear 29.

[0053] The protective cover 27 not only provides protection but also functions as a crucial transmission box. The ends of the two central linkage shafts 21 extend into it, each fitted with a fourth bevel gear 30. Between the two fourth bevel gears 30, multiple third bevel gears 29 connect and transmit power. These third bevel gears 29 are mounted on the rotating rod 28 and can rotate freely. When the second reduction motor 25 drives one of the central linkage shafts 21 and its fourth bevel gear 30 to rotate, power is transmitted to the other fourth bevel gear 30 through all the intermediate third bevel gears 29. Due to the meshing transmission relationship of the gears, the two fourth bevel gears 30 always rotate in opposite directions. This forces the two annular winches 22 connected to the two shafts to maintain synchronous but opposite rotational movements, thus achieving strict synchronization of the retraction and release of the two cables 23. This is the technical guarantee for the smooth and jam-free extension and retraction of the suspended platform.

[0054] Specifically, the adaptive counterweight adjustment structure 7 includes end positioning plates 31 symmetrically fixedly disposed on the bottom surface of the movable basket 5. A suspension rod 32 is fixedly connected to the middle of the end positioning plate 31. The suspension rod 32 is disposed between two bottom guide frames 19. An adaptive guide frame 34 is disposed at the bottom end of the suspension rod 32. The adaptive guide frame 34 is disposed at the bottom end of the basket support frame 8. A sliding frame 33 is fixedly connected to the top surface of the adaptive guide frame 34. The sliding frame 33 is slidably disposed on the top surface of the suspension rod 32. End limiting rods 35 are fixedly connected to both ends of the adaptive guide frame 34. Counterweight frames 36 are fixedly connected to both ends of the bottom surface of the adaptive guide frame 34. A counterweight block 37 is fixedly disposed inside the counterweight frame 36.

[0055] The counterweight 37 is installed inside the counterweight frame 36, which is connected to the adaptive guide frame 34. The adaptive guide frame 34 is fitted onto the boom 32 fixed to the bottom of the mobile basket 5 via its top sliding frame 33, and can slide along the boom 32. When the mobile basket 5 extends in one direction under the traction of the cable 23, the bottom guide frame 19 at the bottom of the basket will contact the end limit rods 35 at both ends of the adaptive guide frame 34, and push the entire adaptive guide frame 34 to slide along the boom 32 in the opposite direction of the basket's movement. In this way, the position of the counterweight 37 is automatically shifted, and this design achieves dynamic balance.

[0056] The extension of the mobile suspended platform 5 causes the center of gravity to shift forward, generating an overturning moment. Meanwhile, the counterweight 37 moves in the opposite direction, generating a counterbalancing moment, thus automatically compensating for the change in the center of gravity. This greatly enhances the stability and safety of the entire suspension system during operation, without the need for manual intervention or additional control systems.

[0057] With the above structural design, when using the device, the mobile load trolley 1 is first moved to the edge of the bridge. The mobile load trolley 1 is stabilized by placing a counterweight on the top surface of the mobile load trolley 1. After that, the telescopic control mechanism 3 is activated so that its output end pushes the mobile basket 5 to extend to the outside of the bridge edge. After that, the height adjustment mechanism 2 is activated so that the mobile basket 5 is lowered as a whole. After it is lowered to a distance below the bridge ground, it is ready.

[0058] After completion, turn on the first reduction motor 12. The output end of the first reduction motor 12 drives the second bevel gear 13 to rotate. The rotation of the second bevel gear 13 drives the first bevel gear 11 to rotate, which in turn causes the central drive shaft 10 to rotate at the output end of the telescopic control mechanism 3. The rotation of the central drive shaft 10 drives the basket support frame 8 at its bottom to rotate. The rotation of the basket support frame 8 drives the movable basket 5 to rotate synchronously until the movable basket 5 rotates to the appropriate extension angle, then turn off the first reduction motor 12.

[0059] After completion, the second reduction motor 25 is turned on. The second reduction motor 25 drives the motor transmission shaft 26 to drive one of the central linkage shafts 21 to rotate. At the same time, the rotation of the central linkage shaft 21 drives the fourth bevel gear 30 on the other side to rotate in the opposite direction through the meshing of the fourth bevel gear 30 and the third bevel gear 29. At the same time, the rotation of the fourth bevel gear 30 drives the two annular winches 22 to rotate in the opposite direction through the central linkage shaft 21. In this way, the cables 23 inside the two annular winches 22 can be released and contracted respectively. At the same time, the cable 23 contracts and pulls one end of the mobile basket 5 through the hook 24 to contract. At the same time, the other end of the mobile basket 5 begins to extend. As the mobile basket 5 extends, it begins to move through the side guide frame 16 on the side and the bottom guide frame 19 on the bottom, in conjunction with the side guide wheel 15 and the bottom guide wheel 18. In this way, the mobile basket 5 can be extended to the bottom of the bridge.

[0060] As the mobile suspended platform 5 extends, the friction between the bottom guide wheel 18 and the adaptive guide frame 34 causes the sliding frame 33 to move in the opposite direction inside the suspension rod 32. At the same time, the sliding frame 33 slides in the opposite direction, and the adaptive guide frame 34 pushes the counterweight frame 36 at the bottom end, causing the counterweight block 37 to extend in the opposite direction of the extension of the mobile suspended platform 5. This allows the mobile suspended platform 5 to maintain balance at the center of the suspended platform support frame 8, thereby preventing the mobile suspended platform 5 from falling due to the gravity at the end.

Claims

1. A mobile suspended platform for bridge construction, comprising a mobile load trolley (1), wherein a counterweight is placed on the upper end of the mobile load trolley (1), and a height adjustment mechanism (2) for adjusting the height is provided at the front end of the mobile load trolley (1), and a telescopic control mechanism (3) for controlling the telescopic length is provided on the surface of the height adjustment mechanism (2), characterized in that; It also includes a steering structure (4) located at the end of the telescopic control mechanism (3) for controlling the rotation angle; The bottom end of the steering structure (4) is provided with a movable basket (5), the bottom end of the steering structure (4) is provided with a telescopic control structure (6), the movable basket (5) is slidably disposed inside the telescopic control structure (6), and the bottom end of the movable basket (5) is provided with an adaptive counterweight adjustment structure (7).

2. The mobile suspended platform for bridge construction according to claim 1, characterized in that, The steering structure (4) includes a basket support frame (8) disposed at the end of the telescopic control mechanism (3). The output end of the telescopic control mechanism (3) is fixedly connected to a motor bracket (9). The top surface of the motor bracket (9) is fixedly connected to a first reduction motor (12). The transmission end of the first reduction motor (12) is rotatably provided with a second bevel gear (13).

3. The mobile suspended platform for bridge construction according to claim 2, characterized in that, The output end of the telescopic control mechanism (3) is rotatably provided with a central drive shaft (10), and a first bevel gear (11) is fixedly connected to the surface of the central drive shaft (10). The bottom end of the central drive shaft (10) is fixedly connected to the top surface of the basket support frame (8), and the first bevel gear (11) meshes with the second bevel gear (13).

4. The mobile suspended platform for bridge construction according to claim 3, characterized in that, The telescopic control structure (6) includes side support plates (14) symmetrically fixed on both sides of the suspended basket support frame (8). The side support plates (14) are rotatably provided with side guide wheels (15). The bottom surface of the suspended basket support frame (8) is symmetrically fixedly connected with a low support plate (17). The low support plate (17) is rotatably provided with a bottom guide wheel (18).

5. The mobile suspended platform for bridge construction according to claim 4, characterized in that, The two sides of the mobile basket (5) are fixedly connected to side guide frames (16), and the bottom surface of the mobile basket (5) is fixedly connected to bottom guide frames (19). The side guide wheels (15) are in close contact with the inner wall of the side guide frames (16), and the bottom guide wheels (18) are in close contact with the bottom surface of the bottom guide frames (19).

6. The mobile suspended platform for bridge construction according to claim 5, characterized in that, The suspended basket support frame (8) is symmetrically fixedly connected with two sets of winch positioning clamps (20). The two sets of winch positioning clamps (20) are respectively rotatably connected with a central linkage shaft (21). The surface of the central linkage shaft (21) is fixedly connected with an annular winch (22). The annular winch (22) is provided with a cable (23). One end of the cable (23) is fixedly connected to the annular winch (22). The two ends of the mobile suspended basket (5) are respectively fixedly connected with hooks (24). The hooks (24) are fixedly connected to the end of the cable (23) away from the annular winch (22).

7. The mobile suspended platform for bridge construction according to claim 6, characterized in that, The surface of the suspended basket support frame (8) is fixedly connected to a second reduction motor (25), and the transmission end of the second reduction motor (25) is rotatably connected to a motor drive shaft (26). The motor drive shaft (26) is fixedly connected to one end of one of the central linkage shafts (21).

8. The mobile suspended platform for bridge construction according to claim 7, characterized in that, The basket support frame (8) is fixedly connected to a protective cover (27). The protective cover (27) is located between two winch positioning clamps (20). The ends of the central linkage shafts (21) that are close to each other extend into the interior of the protective cover (27). The interior of the protective cover (27) is fixedly connected to rotating rods (28) in a ring array. The surface of the rotating rods (28) is rotatably connected to a third bevel gear (29). The ends of the two central linkage shafts (21) that are close to each other are respectively fixedly connected to a fourth bevel gear (30). The fourth bevel gear (30) meshes with the third bevel gear (29).

9. The mobile suspended platform for bridge construction according to claim 8, characterized in that, The adaptive counterweight adjustment structure (7) includes an end positioning plate (31) symmetrically fixedly disposed on the bottom surface of the movable basket (5). A hanging rod (32) is fixedly connected in the middle of the end positioning plate (31). The hanging rod (32) is disposed in the middle of two bottom guide frames (19). An adaptive guide frame (34) is disposed at the bottom end of the hanging rod (32). The adaptive guide frame (34) is disposed at the bottom end of the basket support frame (8). A sliding frame (33) is fixedly connected to the top surface of the adaptive guide frame (34). The sliding frame (33) is slidably disposed on the top surface of the hanging rod (32). End limiting rods (35) are fixedly connected to both ends of the adaptive guide frame (34). A counterweight frame (36) is fixedly connected to both ends of the bottom surface of the adaptive guide frame (34). A counterweight block (37) is fixedly disposed inside the counterweight frame (36).

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