Detachable bridge body lifting frame

By using a linkage winding mechanism and a locking hook mechanism, the problem of inconsistent steel cables in existing bridge hoisting frames under emergency conditions has been solved, achieving stability and safety in bridge hoisting and adapting to diverse construction needs.

CN224226463UActive Publication Date: 2026-05-12NANJING LIANGTIAN HOISTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING LIANGTIAN HOISTING CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In emergency situations or when rapid adjustments are needed, the speed and length of the steel cable pull-out of the existing detachable bridge beam hoisting frame are inconsistent, causing the bridge to tilt during hoisting and posing a safety hazard.

Method used

It adopts a linkage winding mechanism, a locking hook mechanism and a locking component. The winding column is driven to rotate synchronously by a servo motor. The cable management component and the locking component ensure that the steel cable is pulled out and locked in an orderly manner. The locking hook mechanism can be adapted to different bridge structures.

Benefits of technology

It enables precise control of cable length and speed in complex environments, improving the stability and safety of hoisting and adapting to the rapid adjustment needs of different bridges.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bridge body hoisting equipment, and discloses a detachable bridge body hoisting frame which comprises a hollow hoisting block, a linkage winding mechanism is arranged on the inner wall of the hollow hoisting block, the left side and the right side of the hollow hoisting block are communicated with hollow U-shaped plates, steel cables are arranged on the front side and the rear side of the inner wall of each hollow U-shaped plate, and the steel cables are connected with the linkage winding mechanism. U-shaped limiting plates are fixedly connected to one ends of the two steel cables on the front side and the rear side, extending plates are slidably connected to the front side and the rear side of the inner wall of each U-shaped limiting plate, clamping hook mechanisms are arranged on the inner walls of the extending plates, and steel cables are fixedly connected to the front side and the rear side of the outer wall of each U-shaped limiting plate. According to the steel cable winding device, the servo motor is started to drive the left winding column to rotate and the right winding column to synchronously and reversely rotate, the separation disc ensures that the steel cables are not wound, the rotating column of the cable arranging assembly is meshed with the helical tooth gear, the sliding block guides the steel cables to be arranged in order, and therefore the steel cables can be pulled out in order.
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Description

Technical Field

[0001] This utility model relates to the technical field of bridge beam hoisting equipment, and in particular to a detachable bridge beam hoisting frame. Background Technology

[0002] In bridge construction, detachable bridge beam hoisting frames serve as key construction equipment. They can be flexibly assembled and disassembled according to project requirements, effectively improving construction efficiency and reducing transportation and storage costs. They are widely used in the beam hoisting operations of highway and railway bridges. Their modular design allows for rapid deployment at different construction sites, and the detachable structure enables convenient transportation of large hoisting frames, greatly meeting the diversified and efficient construction requirements of modern bridge construction.

[0003] Early detachable bridge beam hoisting frames used a single take-up reel structure and a simple manual locking device. When hoisting bridges of different sizes, operators had to manually adjust the cable length at each hoisting point. This method was not only time-consuming and labor-intensive, but also difficult to accurately control the consistent length of each cable, which could cause the bridge to tilt during hoisting, posing a significant safety hazard. With technological advancements, existing hoisting frames have introduced independent drive systems with dual or multiple take-up reels, equipped with electronic distance measuring devices to assist in adjusting cable length, improving operational efficiency and accuracy to some extent. However, these existing devices still have limitations in practical use: although the independently driven take-up reel system can perform length calibration through electronic distance measuring, the electronic equipment is susceptible to interference in complex construction environments, leading to calibration errors; at the same time, the lack of a mechanical linkage mechanism among multiple take-up reels means that in emergency situations or when rapid adjustments are needed, the inconsistent speed and length of cable pull-out at different angles can still cause the bridge to tilt at the moment of hoisting, affecting hoisting stability and construction safety. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a detachable bridge beam hoisting frame, which aims to improve the problem in the existing technology that the speed and length of the steel cable pulled out at different angles are inconsistent when facing emergency conditions or rapid adjustment needs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a detachable bridge beam hoisting frame, comprising a hollow hoisting block, wherein a linkage winding mechanism is provided on the inner wall of the hollow hoisting block, and hollow U-shaped plates are connected to both the left and right sides of the hollow hoisting block. Steel cables are provided on the front and rear sides of the inner wall of the hollow U-shaped plates, and one end of each of the two steel cables on the front and rear sides is fixedly connected to a U-shaped limiting plate. An extension plate is slidably connected to the front and rear sides of the inner wall of the U-shaped limiting plate, and a locking hook mechanism is provided on the inner wall of the extension plate. Steel cables are fixedly connected to the front and rear sides of the outer wall of the U-shaped limiting plate. A locking component is provided on the front side of the inner wall of the hollow hoisting block, and a locking component is provided on the front and rear sides of the outer wall of the extension plate.

[0006] The linkage winding mechanism includes two winding columns. The front and rear ends of the two winding columns are rotatably connected to the left and right sides of the middle of the inner wall of the hollow hanging block, respectively. A separator plate is fixedly connected to the middle of the outer wall of the winding column. A servo motor is fixedly connected to the front side of the hollow hanging block. The output end of the servo motor passes through the front side of the hollow hanging block and is fixedly connected to the front end of the left winding column. Helical gears are fixedly connected to the front and rear ends of the outer wall of the winding column. Cable management components are provided on the left and right sides of the inner wall of the hollow hanging block.

[0007] As a further description of the above technical solution:

[0008] The locking hook mechanism includes multiple connecting ropes, the outer walls of which are respectively fixedly connected to the inner walls of the corresponding protruding plates. The bottom ends of the connecting ropes are fixedly connected to perforated discs. The inner walls of the perforated discs are provided with multiple limiting rods. The outer walls of the limiting rods are provided with semi-conical blocks on the left and right sides. The bottom ends of the multiple limiting rods are fixedly connected to connecting discs. The bottom ends of the connecting discs are rotatably connected to connecting hooks.

[0009] As a further description of the above technical solution:

[0010] The cable management assembly includes two rotating columns. The front and rear ends of the two rotating columns are respectively rotatably connected to the left and right sides of the inner wall of the hollow hanging block. The front and rear ends of the outer wall of the rotating columns are fixedly connected to the linkage gears. The front and rear sides of the outer wall of the rotating columns are provided with reciprocating threaded grooves. The outer wall of the reciprocating threaded grooves is threaded with a sliding block. The outer wall of the sliding block is provided with a cable through hole.

[0011] As a further description of the above technical solution:

[0012] The locking assembly includes multiple hollow blocks, the bottom ends of which are located on the front and rear sides of the top of the U-shaped limiting plate. A threaded rod is fixedly connected to the bottom end of each hollow block, and a locking block is fixedly connected to the left side of the bottom end of each hollow block. A snap-fit ​​pad is provided on the outer wall of the threaded rod, and a nut is threadedly connected to the bottom end of the outer wall of the threaded rod. The front and rear sides of the top of the U-shaped limiting plate are provided with locking grooves.

[0013] As a further description of the above technical solution:

[0014] The locking assembly includes an electric telescopic rod, the front end of which is fixedly connected to the middle of the front side of the inner wall of the hollow hanging block, and a locking plate is fixedly connected to one end of the electric telescopic rod. A locking toothed ring is fixedly connected to the outer wall of the partition plate.

[0015] As a further description of the above technical solution:

[0016] The hollow lifting block is rotatably connected to the top center with a hook ring, and the outer wall of the rotating column is meshed with the outer wall of the helical gear.

[0017] As a further description of the above technical solution:

[0018] The upper and lower sides of the protruding plate are fixedly connected to slide rails, and the outer walls of the two slide rails are slidably connected to the inner wall of the U-shaped limiting plate.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the semi-conical block engages with the inner wall of the perforated plate, and the toothed grooves on the inner wall of the semi-conical block are the same size as the outer wall of the limiting rod.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by starting the servo motor, the left winding column is driven to rotate, and the right winding column rotates synchronously in the opposite direction. The separator plate ensures that the steel cable does not get tangled. The rotating column of the cable management component meshes with the helical gear, and the sliding block guides the steel cable to be neatly arranged. When the winding column rotates, the steel cable is pulled out or retracted, which drives the U-shaped limit plate and the extension plate to slide synchronously, thereby realizing the orderly pulling out of the steel cable.

[0023] 2. In this utility model, the hole plate is connected by pulling the connecting rope, and the connecting hook is suspended on one side of the bridge. During the hoisting process, the connecting hook and the connecting plate together with the limiting rod are pulled downwards, and the semi-conical block is tightly engaged with the hole plate on the outside, thereby completing the connection. By adjusting the position of the semi-conical block, it can flexibly adapt to various types of bridge hoisting operations. Attached Figure Description

[0024] Figure 1 This is a perspective view of the detachable bridge beam hoisting frame proposed in this utility model;

[0025] Figure 2 This is a front view of the detachable bridge beam hoisting frame proposed in this utility model;

[0026] Figure 3 This is a top view of the detachable bridge beam hoisting frame proposed in this utility model;

[0027] Figure 4 This is a cross-sectional view of the hollow lifting block of the detachable bridge beam hoisting frame proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the linkage winding mechanism of the detachable bridge beam hoisting frame proposed in this utility model.

[0029] Figure 6This is a split view of the locking hook mechanism of the detachable bridge beam hoisting frame proposed in this utility model.

[0030] Legend:

[0031] 1. Hollow lifting block; 2. Linked winding mechanism; 201. Winding column; 202. Divider plate; 203. Servo motor; 204. Helical gear; 205. Cable management assembly; 2051. Rotating column; 2052. Linked gear; 2053. Reciprocating threaded groove; 2054. Sliding block; 2055. Cable threading hole; 3. Engaging hook mechanism; 301. Connecting rope; 302. Hole plate; 303. Limiting rod; 304. Half 305. Conical block; 306. Connecting disc; 307. Connecting hook; 4. Hollow U-shaped plate; 5. U-shaped limiting plate; 6. Extending plate; 7. Locking assembly; 701. Hollow block; 702. Threaded rod; 703. Locking block; 704. Snap-on pad; 705. Nut; 706. Locking groove; 8. Locking assembly; 801. Electric telescopic rod; 802. Locking plate; 803. Engaging toothed ring; 9. Hook ring; 10. Steel cable; 11. Slide rail. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 4 and Figure 5 An embodiment of this utility model provides a detachable bridge beam hoisting frame, including a hollow hoisting block 1. The inner wall of the hollow hoisting block 1 is provided with a linkage winding mechanism 2. Hollow U-shaped plates 4 are connected to both the left and right sides of the hollow hoisting block 1. Steel cables 10 are provided on the front and rear sides of the inner wall of the hollow U-shaped plate 4. One end of each of the two steel cables 10 on the front and rear sides is fixedly connected to a U-shaped limiting plate 5. An extension plate 6 is slidably connected to the front and rear sides of the inner wall of the U-shaped limiting plate 5. A locking hook mechanism 3 is provided on the inner wall of the extension plate 6. Steel cables 10 are fixedly connected to the front and rear sides of the outer wall of the U-shaped limiting plate 5. A locking component 8 is provided on the front side of the inner wall of the hollow hoisting block 1 to prevent the winding column 201 from rotating during hoisting. A locking component 7 is provided on the front and rear sides of the outer wall of the extension plate 6 to prevent the adjusted extension plate 6 from sliding above the U-shaped limiting plate 5.

[0034] The linkage winding mechanism 2 includes two winding columns 201. The front and rear ends of the two winding columns 201 are rotatably connected to the left and right sides of the middle of the inner wall of the hollow lifting block 1, respectively. A separator plate 202 is fixedly connected to the middle of the outer wall of the winding column 201. A servo motor 203 is fixedly connected to the front side of the hollow lifting block 1. The output end of the servo motor 203 passes through the front side of the hollow lifting block 1 and is fixedly connected to the front end of the left winding column 201. Helical gears 204 are fixedly connected to the front and rear ends of the outer wall of the winding column 201. When the servo motor 203 is started, its output end drives the left winding column 201 to rotate. Since the two winding columns 201 mesh with each other through the helical gears 204, the rotation of the left winding column 201 will drive the right winding column 201 to rotate synchronously in the opposite direction. Cable management components 205 are provided on the left and right sides of the inner wall of the hollow lifting block 1. The separator plate 202 on the winding column 201 separates the steel cables 10 on both sides to ensure that the steel cables 10 on both sides will not entangle during the winding process.

[0035] The cable management assembly 205 includes two rotating columns 2051. The front and rear ends of the two rotating columns 2051 are rotatably connected to the left and right sides of the inner wall of the hollow hanging block 1, respectively. The front and rear ends of the outer wall of the rotating columns 2051 are fixedly connected to the linkage gears 2052. The front and rear sides of the outer wall of the rotating columns 2051 are provided with reciprocating threaded grooves 2053. The outer wall of the reciprocating threaded grooves 2053 is threadedly connected to the sliding block 2054. The outer wall of the sliding block 2054 is provided with a wire hole 2055. The linkage gears 2052 on the rotating columns 2051 mesh with the helical gears 204, so that the rotating columns 2051 rotate accordingly. The reciprocating threaded grooves 2053 on the outer wall of the rotating columns 2051 drive the sliding block 2054 to make reciprocating linear motion along the axial direction of the rotating columns 2051. The wire hole 2055 on the sliding block 2054 guides the steel cable 10 to be neatly arranged, avoiding the steel cable 10 from being tangled and messy.

[0036] Specifically, the servo motor 203 is started, and its output drives the left take-up column 201 to rotate. Since the two take-up columns 201 are meshed with each other through the helical gear 204, the rotation of the left take-up column 201 will drive the right take-up column 201 to rotate synchronously in the opposite direction. The separator 202 on the take-up column 201 separates the steel cables 10 on both sides, ensuring that the steel cables 10 on both sides will not entangle during the winding process. At the same time as the take-up column 201 rotates, the cable management component 205 plays its role. The linkage gear 2052 on the rotating column 2051 and the helical gear 204 The meshing causes the rotating column 2051 to rotate. The reciprocating threaded groove 2053 on the outer wall of the rotating column 2051 drives the sliding block 2054 to reciprocate linearly along the axis of the rotating column 2051. The wire hole 2055 on the sliding block 2054 guides the steel cable 10 to be neatly arranged, avoiding the steel cable 10 from getting tangled. As the winding column 201 rotates, the steel cable 10 is pulled out or retracted. The steel cable 10 drives the U-shaped limiting plate 5 to move, which in turn causes the extension plate 6 to slide on the inner wall of the U-shaped limiting plate 5. Thus, when the steel cable 10 is pulled out, both sides are pulled out simultaneously.

[0037] Reference Figure 1 , Figure 3 and Figure 6 The engaging hook mechanism 3 includes multiple connecting ropes 301. The outer walls of the multiple connecting ropes 301 are respectively fixedly connected to the inner walls of the corresponding protruding plates 6. The bottom ends of the connecting ropes 301 are fixedly connected to perforated plates 302. The connecting ropes 301 move with the protruding plates 6 and can pull the perforated plates 302. The inner walls of the perforated plates 302 are provided with multiple limiting rods 303. The left and right sides of the outer walls of the limiting rods 303 are provided with semi-conical blocks 304. The bottom ends of the multiple limiting rods 303 are all fixedly connected to... A connecting plate 305 is attached, and a connecting hook 306 is rotatably connected to the bottom end of the connecting plate 305. The connecting hook 306 is hooked to one side of the bridge. When it is lifted, the connecting hook 306 will pull the connecting plate 305 and the limiting rod 303 above it to the bottom under the action of the weight of the bridge. The semi-conical block 304 located on the outside is pulled by the limiting rod 303 and engages with the hole plate 302, so that the limiting rod 303 and the semi-conical block 304 are engaged with the hole plate 302.

[0038] Specifically, the connecting rope 301 moves with the extension plate 6. The connecting rope 301 can pull the perforated plate 302, and the connecting hook 306 is hooked to one side of the bridge. When lifting, the connecting hook 306 will pull the connecting plate 305 and the limiting rod 303 above it to the bottom under the weight of the bridge. The semi-conical block 304 located on the outside is pulled by the limiting rod 303 and engages with the perforated plate 302, so that the limiting rod 303 and the semi-conical block 304 are engaged with the perforated plate 302, thereby completing the connection. When lifting different bridges, the position of the semi-conical block 304 above the limiting rod 303 can be changed to adapt to the lifting of different bridges.

[0039] Reference Figure 1 , Figure 5 and Figure 6 The locking assembly 7 includes multiple hollow blocks 701. The bottom ends of the hollow blocks 701 are located on the front and rear sides of the top of the U-shaped limiting plate 5. A threaded rod 702 is fixedly connected to the bottom end of each hollow block 701. A locking block 703 is fixedly connected to the left side of the bottom end of each hollow block 701. A snap-fit ​​pad 704 is provided on the outer wall of the threaded rod 702. A nut 705 is threadedly connected to the bottom end of the outer wall of the threaded rod 702. Slots 706 are provided on the front and rear sides of the top of the U-shaped limiting plate 5. The snap-fit ​​pad 704 is fitted onto the threaded rod 702. By aligning the slot 706 at the bottom of the snap-fit ​​pad 704 with the slot 706 at the top of the U-shaped limiting plate 5, the snap-fit ​​pad 704 can fit against the surface of the U-shaped limiting plate 5. At this time, the locking block 703 at the bottom of the hollow block 701 is embedded in the corresponding slot 706 of the U-shaped limiting plate 5, which plays a preliminary positioning role. Subsequently, by rotating the nut 705, it is fixed in place on the threaded rod. As the nut 705 is tightened, the snap-fit ​​pad 704 is pressed downwards, firmly fixing the extension plate 6 onto the U-shaped limiting plate 5, restricting the sliding of the extension plate 6, and ensuring the fixed position of the snap-fit ​​hook mechanism 3; the locking assembly 8 includes an electric telescopic rod 801, the front end of which is fixedly connected to the middle of the front side of the inner wall of the hollow lifting block 1, and a snap-fit ​​plate 802 is fixedly connected to one end of the electric telescopic rod 801. A snap-fit ​​toothed ring 803 is fixedly connected to the outer wall of the partition plate 202. When the steel cable 10 is stretched to the required length, the electric telescopic rod 801 receives the instruction and begins to extend, pushing the snap-fit ​​plate 802 to move towards the partition plate 202. Since the outer wall of the partition plate 202 is fixedly connected to the snap-fit ​​toothed ring 803, as the snap-fit ​​plate 802 approaches, its edge gradually snaps into the tooth groove of the snap-fit ​​toothed ring 803, forming a mechanical locking structure to prevent the winding column 201 from continuing to rotate;

[0040] Specifically, when the locking component 7 is activated, the snap-fit ​​pad 704 is first placed on the threaded rod 702. The snap-fit ​​pad 704's bottom groove 706 aligns with the top groove 706 of the U-shaped limiting plate 5, allowing the snap-fit ​​pad 704 to fit against the surface of the U-shaped limiting plate 5. At this time, the snap-fit ​​block 703 at the bottom of the hollow block 701 is embedded in the corresponding groove 706 of the U-shaped limiting plate 5, providing initial positioning. Subsequently, by rotating the nut 705, it is screwed onto the threaded rod 702. As the nut 705 tightens, the snap-fit ​​pad 704 is pressed downwards, firmly fixing the protruding plate 6 onto the U-shaped limiting plate 5, restricting the sliding of the protruding plate 6, and ensuring the proper positioning of the engaging hook mechanism 3. The locking assembly 8 is fixed in place to prevent the hook from shifting due to shaking during hoisting. The working process of the locking assembly 8 is driven by the electric telescopic rod 801. When the steel cable 10 is stretched to the required length, the electric telescopic rod 801 receives the instruction and begins to extend, pushing the locking plate 802 towards the partition plate 202. Since the outer wall of the partition plate 202 is fixed with a locking toothed ring 803, as the locking plate 802 approaches, its edge gradually engages with the tooth groove of the locking toothed ring 803, forming a mechanical locking structure that prevents the winding column 201 from continuing to rotate. This prevents the steel cable 10 from being accidentally wound up or down during hoisting, ensures the stability of the tension of the steel cable 10, and guarantees the safety and reliability of the bridge beam hoisting process.

[0041] Reference Figure 1 , Figure 2 and Figure 4 A hook ring 9 is rotatably connected to the top center of the hollow lifting block 1. The hook ring 9 serves as a connecting component between the lifting frame and the lifting equipment. The outer wall of the rotating column 2051 meshes with the outer wall of the helical gear 204, allowing the rotating column 2051 to rotate synchronously under the drive of the helical gear 204. Slide rails 11 are fixedly connected to the upper and lower sides of the extension plate 6. The outer walls of the two slide rails 11 are slidably connected to the inner wall of the U-shaped limiting plate 5. The slide rails 11 provide a stable guiding structure for the extension plate 6, preventing the extension plate 6 from shifting, jamming, or tilting during movement. The outer wall of the semi-conical block 304 engages with the inner wall of the perforated plate 302. The toothed grooves on the inner wall of the semi-conical block 304 are the same size as the outer wall of the limiting rod 303, restricting the radial movement of the semi-conical block 304 within the perforated plate 302 and ensuring its fixed position.

[0042] Specifically, the hook ring 9, as the connecting component between the lifting frame and the lifting equipment, has a rotating connection design that allows the hollow lifting block 1 to rotate freely with the change of the beam's posture during the lifting process. The outer wall of the rotating column 2051 meshes with the outer wall of the helical gear 204, enabling the rotating column 2051 to rotate synchronously under the drive of the helical gear 204. The slide rail 11 provides a stable guiding structure for the extension plate 6, preventing the extension plate 6 from shifting, jamming, or tilting during movement, ensuring that the engaging hook mechanism 3 can accurately reach the predetermined position. The outer wall of the semi-conical block 304 engages with the inner wall of the perforated plate 302, which can limit the radial movement of the semi-conical block 304 within the perforated plate 302, ensuring that its position is fixed.

[0043] Working principle: First, when using this device, the servo motor 203 can be started, and its output drives the left take-up column 201 to rotate. Since the two take-up columns 201 mesh with each other through the helical gear 204, the rotation of the left take-up column 201 will cause the right take-up column 201 to rotate synchronously in the opposite direction. The separator 202 on the take-up column 201 separates the steel cables 10 on both sides, ensuring that the steel cables 10 on both sides will not tangle during the winding process. At the same time, as the take-up column 201 rotates, the cable management assembly 205 starts to work, and the linkage gear 2052 on the rotating column 2051 and... The helical gear 204 meshes, causing the rotating column 2051 to rotate accordingly. The reciprocating threaded groove 2053 on the outer wall of the rotating column 2051 pushes the sliding block 2054 to reciprocate linearly along the axial direction of the rotating column 2051. The wire hole 2055 on the sliding block 2054 guides the steel cable 10 to be neatly arranged, preventing the steel cable 10 from getting tangled. As the winding column 201 rotates, the steel cable 10 is pulled out or retracted. The steel cable 10 drives the U-shaped limiting plate 5 to move, which in turn causes the extension plate 6 to slide on the inner wall of the U-shaped limiting plate 5. Thus, when the steel cable 10 is pulled out, both sides do so simultaneously.

[0044] Furthermore, through the locking hook mechanism 3, the connecting rope 301 moves with the extension plate 6, enabling it to pull the perforated plate 302. During the hoisting process, the connecting hook 306 can be hung on one side of the bridge. The weight of the bridge will cause the connecting hook 306 to pull the connecting plate 305 and the upper limiting rod 303 to the bottom. Under the pulling action of the limiting rod 303, the outer semi-conical block 304 interacts with the locking mechanism in the perforated plate 302, realizing the locking of the limiting rod 303 and the semi-conical block 304 in the perforated plate 302, thereby completing the connection. According to the hoisting requirements of different bridges, by adjusting the position of the semi-conical block 304 on the limiting rod 303, adaptive hoisting for different bridges can be achieved.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable bridge beam hoisting frame, comprising hollow lifting blocks (1), characterized in that: The hollow lifting block (1) is provided with a linkage winding mechanism (2) on its inner wall. The hollow lifting block (1) is connected to hollow U-shaped plates (4) on both the left and right sides. The hollow U-shaped plates (4) are provided with steel cables (10) on both the front and back sides of their inner walls. One end of each of the two steel cables (10) on the front and back sides is fixedly connected to a U-shaped limiting plate (5). The U-shaped limiting plate (5) is slidably connected to an extension plate (6) on both the front and back sides of its inner wall. The extension plate (6) is provided with a locking hook mechanism (3) on its inner wall. The U-shaped limiting plate (5) is fixedly connected with steel cables (10) on both the front and back sides of its outer wall. The hollow lifting block (1) is provided with a locking component (8) on its inner front side. The extension plate (6) is provided with a locking component (7) on both the front and back sides of its outer wall. The linkage winding mechanism (2) includes two winding columns (201). The front and rear ends of the two winding columns (201) are respectively rotatably connected to the left and right sides of the middle of the inner wall of the hollow hanging block (1). A separator plate (202) is fixedly connected to the middle of the outer wall of the winding column (201). A servo motor (203) is fixedly connected to the front side of the hollow hanging block (1). The output end of the servo motor (203) passes through the front side of the hollow hanging block (1) and is fixedly connected to the front end of the left winding column (201). Helical gears (204) are fixedly connected to the front and rear ends of the outer wall of the winding column (201). Cable management components (205) are provided on the left and right sides of the inner wall of the hollow hanging block (1).

2. The detachable bridge beam hoisting frame according to claim 1, characterized in that: The locking hook mechanism (3) includes multiple connecting ropes (301), the outer walls of the multiple connecting ropes (301) are respectively fixedly connected to the inner walls of the corresponding protruding plates (6), the bottom ends of the connecting ropes (301) are fixedly connected to perforated plates (302), the inner walls of the perforated plates (302) are provided with multiple limiting rods (303), the left and right sides of the outer walls of the limiting rods (303) are provided with semi-conical blocks (304), the bottom ends of the multiple limiting rods (303) are fixedly connected to connecting plates (305), and the bottom ends of the connecting plates (305) are rotatably connected to connecting hooks (306).

3. The detachable bridge beam hoisting frame according to claim 1, characterized in that: The cable management assembly (205) includes two rotating columns (2051). The front and rear ends of the two rotating columns (2051) are respectively rotatably connected to the left and right sides of the inner wall of the hollow hanging block (1). The front and rear ends of the outer wall of the rotating column (2051) are fixedly connected with linkage gears (2052). The front and rear sides of the outer wall of the rotating column (2051) are provided with reciprocating thread grooves (2053). The outer wall of the reciprocating thread groove (2053) is threaded with a sliding block (2054). The outer wall of the sliding block (2054) is provided with a cable through hole (2055).

4. The detachable bridge beam hoisting frame according to claim 1, characterized in that: The locking assembly (7) includes multiple hollow blocks (701), the bottom ends of which are located on the front and rear sides of the top of the U-shaped limiting plate (5). A threaded rod (702) is fixedly connected to the bottom end of each hollow block (701). A locking block (703) is fixedly connected to the left side of the bottom end of each hollow block (701). A snap-fit ​​pad (704) is provided on the outer wall of the threaded rod (702). A nut (705) is threadedly connected to the bottom end of the outer wall of the threaded rod (702). A slot (706) is provided on both the front and rear sides of the top of the U-shaped limiting plate (5).

5. The detachable bridge beam hoisting frame according to claim 1, characterized in that: The locking assembly (8) includes an electric telescopic rod (801), the front end of which is fixedly connected to the middle of the front side of the inner wall of the hollow lifting block (1), and a locking plate (802) is fixedly connected to one end of the electric telescopic rod (801). A locking toothed ring (803) is fixedly connected to the outer wall of the partition plate (202).

6. The detachable bridge beam hoisting frame according to claim 3, characterized in that: The hollow lifting block (1) is rotatably connected to the top center of a hook ring (9), and the outer wall of the rotating column (2051) is meshed with the outer wall of the helical gear (204).

7. The detachable bridge beam hoisting frame according to claim 1, characterized in that: The upper and lower sides of the protruding plate (6) are fixedly connected with slide rails (11), and the outer walls of the two slide rails (11) are slidably connected to the inner wall of the U-shaped limiting plate (5).

8. The detachable bridge beam hoisting frame according to claim 2, characterized in that: The outer wall of the semi-conical block (304) engages with the inner wall of the perforated plate (302), and the toothed groove on the inner wall of the semi-conical block (304) is the same size as the outer wall of the limiting rod (303).