A reinforcing cage hanger positioning device for bridge construction

Abstract

The present application relates to the technical field of bridge construction, and provides a reinforcing cage hanger positioning device for bridge construction. The reinforcing cage hanger positioning device for bridge construction comprises a construction hanger, an adjusting frame assembly, a gripper assembly, a bottom adjusting assembly and a lowering frame assembly. The present application can realize multi-point holding and centering of the reinforcing cage, firmly and uniformly clamp the reinforcing cage, ensure the accurate position of the reinforcing cage in the pile hole, avoid eccentricity or inclination, and also adapt to reinforcing cages of different specifications, enhance the versatility and adaptability of the equipment. In addition, when the reinforcing cage deviates, the reinforcing cage can be automatically pushed, straightened, corrected and dynamically centered in multiple layers, precise intelligent adjustment is realized, the reinforcing cage is prevented from tilting or deviating, excessive pressure or scratching on the pile hole wall is avoided when the reinforcing cage deviates, the integrity of the pile hole structure is protected, and the vertical stability of the reinforcing cage in the pile hole is ensured.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular provides a rebar cage hanger positioning device for bridge construction. Background Technology

[0002] With the continuous expansion of bridge engineering scale, the requirements for construction quality and safety in the rebar cage lowering process during pile foundation construction are becoming increasingly stringent. As the skeleton of the pile foundation, the accurate positioning and stable lowering of the rebar cage are crucial to ensuring the bearing capacity and durability of the pile foundation. However, traditional rebar cage lowering devices often rely on manual adjustment and simple mechanical structures, making it difficult to flexibly adapt to rebar cages of different diameters. Furthermore, uneven holding forces are prone to occur, leading to swaying and tilting of the rebar cage during lowering. Once the rebar cage deviates, repeated manual adjustments are often required, which is time-consuming, labor-intensive, and has limited accuracy. This not only increases construction difficulty but may also cause scratches and damage to the pile hole wall, affecting the structural integrity of the pile foundation and the uniformity of subsequent concrete pouring, ultimately reducing the overall quality and safety of the bridge foundation. Summary of the Invention

[0003] Therefore, it is necessary to provide a steel cage hanger positioning device for bridge construction to solve at least one of the technical problems in the background art.

[0004] A rebar cage positioning device for bridge construction includes a construction hanger, an adjusting frame assembly, a gripper assembly, a bottom adjusting assembly, and a lowering frame assembly. The bottom of the construction hanger is installed in the installation ground. The adjusting frame assembly includes an adjusting vertical frame, a driven moving frame, two connecting horizontal columns, and a pulling adjusting element. The adjusting vertical frame and the driven moving frame are slidably installed on both sides of the bottom of the construction hanger via adjusting motors. The two ends of the two connecting horizontal columns are respectively installed at the two ends of the inner middle of the adjusting vertical frame and the driven moving frame. The middle of the side wall of the driven moving frame is recessed with a mounting pivot hole. The four corners of the inner side of the driven moving frame are respectively provided with mounting sliding columns. The pulling adjusting element is installed in the driven moving frame. The outside of the gripper assembly is installed in the middle of the inner side of the adjusting vertical frame. The bottom of the bottom adjusting assembly is installed in the pulling adjusting element. The lowering frame assembly is connected to the bottom adjusting assembly.

[0005] As a further improvement of the present invention, the pull adjustment element includes a pull adjustment motor, a pull adjustment screw, a pull adjustment plate, two pull adjustment blocks, an upper adjustment ring, and a lower adjustment base. The pull adjustment motor is installed in the middle of the inner side of the driven moving frame. The outer end of the pull adjustment screw is rotatably installed in the mounting hole, and the output shaft of the pull adjustment motor is connected to the pull adjustment screw. The four corners of the pull adjustment plate are slidably installed in four mounting slide columns, and the middle of the pull adjustment plate is recessed with a threaded adjustment hole, which is threadedly connected to the pull adjustment screw. The outer side of the pull adjustment plate is provided with a mounting slide rail. The two pull adjustment blocks are slidably installed on the top and bottom of the mounting slide rail respectively through the moving motor. The upper adjustment ring is sleeved on the outer wall of the reinforcing cage, and the upper adjustment ring is connected to the pull adjustment block located at the top through a pull rod. The lower adjustment base is installed in the mounting ground, and the lower adjustment base is connected to the pull adjustment block located at the bottom through a pull rod.

[0006] As a further improvement of the present invention, the gripper assembly includes a gripper mounting frame, four gripper adjusting cylinders, a gripper clamping frame, four clamping cylinders, and two gripper elements. The outer side of the gripper mounting frame is mounted on the inner middle of the adjusting vertical frame. Adjusting mounting slides are respectively protruding from the middle of the two ends of the inner side of the gripper mounting frame. The two ends of the gripper clamping frame are respectively slidably mounted in the two adjusting mounting slides. Adjusting connecting rods are respectively protruding from the top and bottom of the inner end of the gripper clamping frame. The four clamping cylinders are respectively mounted on the two ends of the gripper mounting frame, and the output shafts of the four clamping cylinders are respectively connected to the four adjusting connecting rods. The four clamping cylinders are respectively rotatably mounted on the top and bottom ends of the gripper clamping frame. The outer sides of the two gripper elements are respectively rotatably mounted on the two ends of the middle part of the gripper clamping frame.

[0007] As a further improvement of the present invention, each gripper element includes a holding gripper and multiple vertical rollers. The holding gripper is rotatably mounted on the outer side of one end of the gripper holding frame. A gripper connecting rod is protruding from the top surface and the middle part of the bottom of the holding gripper. The gripper connecting rod is rotatably connected to the output shaft of the gripping cylinder. Multiple preset vertical grooves are recessed along the circumferential direction on the inner wall of the holding gripper. A roller shaft is rotatably arranged in each preset vertical groove. The multiple vertical rollers are respectively installed in the multiple roller shafts.

[0008] As a further improvement of the present invention, the bottom adjustment assembly includes a bottom lifting frame, multiple centering elements and elastic rings. The bottom lifting frame is installed on the top of the lower adjustment base. A preset through hole is recessed in the middle of the top surface of the bottom lifting frame. Multiple radial grooves are recessed at intervals along the circumferential direction on the outer edge of the bottom surface of the bottom lifting frame. Multiple centering adjustment platforms are protruding on the bottom surface of the bottom lifting frame. The multiple centering adjustment platforms are respectively arranged opposite to the multiple radial grooves. Multiple centering elements are respectively installed at intervals along the circumferential direction in the bottom lifting frame, and the multiple centering elements are respectively arranged opposite to the multiple radial grooves. The elastic rings are respectively clamped in the inner wall of the multiple centering elements.

[0009] As a further improvement of the present invention, each centering element includes two radial slide rails, a pusher slider, a connecting vertical rod, a synchronous connecting rod, and a centering cylinder. The two radial slide rails are both installed on the top surface of the bottom lifting frame, and the two radial slide rails are respectively located on both sides of the radial slide groove. The two sides of the bottom surface of the pusher slider are slidably installed on the top of the two radial slide rails. The top of the connecting vertical rod is installed in the middle of the bottom surface of the pusher slider. The outer end of the synchronous connecting rod is connected to the bottom surface of the connecting vertical rod. The centering cylinder is installed in the centering adjustment table, and the output shaft of the centering cylinder is connected to the inner end of the synchronous connecting rod.

[0010] As a further improvement of the present invention, the lowering frame assembly includes three synchronous lowering frames, three connecting spring buckles, and three synchronous lifting rods. The inner walls of the three synchronous lowering frames are respectively recessed on both sides. The two ends of the three connecting spring buckles are respectively engaged in the six spring buckle slots. The bottom ends of the three synchronous lifting rods are respectively installed on the top of the three synchronous lowering frames, and the top ends of the three synchronous lifting rods are respectively connected to the corresponding three synchronous connecting rods.

[0011] As a further improvement of the present invention, each synchronous lowering frame includes an arc-shaped clamping plate, a lowering buffer, a lowering element, and an outer arc-shaped plate. Two spring buckle slots are respectively provided on both sides of the middle of the inner wall of the arc-shaped clamping plate. The inner side of the lowering buffer is installed on the middle of the outer side of the arc-shaped clamping plate. The bottom end of the synchronous lifting rod is connected to the middle of the top surface of the lowering buffer. The top and bottom of the outer side of the lowering buffer are respectively recessed with radial mounting sliding holes. The lowering element is installed in the two radial mounting sliding holes. The middle of the inner side of the outer arc-shaped plate is connected to the output shaft of the lowering buffer.

[0012] As a further improvement of the present invention, an elastic arc strip is provided at the top of one end and the bottom of the other end of the outer arc plate, and a support wheel is rotatably provided at the outer end of each elastic arc strip.

[0013] As a further improvement of the present invention, the lowering element includes two radial sliding columns, two transverse sliding bars, and two compression springs. The outer ends of the two radial sliding columns are respectively installed on the top and bottom of the outer arc-shaped plate. The inner ends of the two radial sliding columns are each provided with a sliding insert rod. The two sliding insert rods are respectively slidably installed in the two radial mounting holes. The outer edge of the inner end of each radial sliding column is recessed with an arc-shaped trigger surface. The inner ends of the outer sides of the two transverse sliding bars are each provided with a triangular push block. The inner end of the outer side of each transverse sliding bar is recessed with a strip-shaped groove. The transverse sliding bars are slidably installed in the radial sliding columns through the strip-shaped grooves. A return spring is provided between the outer end of the strip-shaped groove and the outer wall of the radial sliding column. The two transverse sliding bars are arranged oppositely. The outer ends of the two transverse sliding bars abut against the inner walls of the two elastic arc-shaped bars. The outer ends of the two compression springs are respectively installed on the outer edges of the inner ends of the two radial sliding columns. The inner ends of the two compression springs are respectively slidably abut against the outer sides of the two triangular push blocks.

[0014] The beneficial effects of this invention are as follows: 1. This system enables multi-point holding and centering of the reinforcing cage, and can firmly and evenly clamp the reinforcing cage, ensuring the accurate position of the reinforcing cage in the pile hole, avoiding eccentricity or tilting, reducing friction and scraping between the reinforcing cage and the hole wall, avoiding damage to the pile hole wall, ensuring a smooth lowering process, maintaining the precise verticality and uniform spacing of the reinforcing cage, improving the overall construction accuracy and the uniformity of the thickness during subsequent concrete pouring, improving the overall quality and durability of the pile foundation, and also adapting to reinforcing cages of different specifications, enhancing the versatility and adaptability of the equipment.

[0015] 2. This invention can automatically push, straighten, and dynamically center the reinforcing cage in multiple layers when it becomes misaligned, achieving precise and intelligent adjustment to prevent the reinforcing cage from tilting or deviating, avoiding excessive pressure or scraping on the pile hole wall when the reinforcing cage is misaligned, protecting the integrity of the pile hole structure, and ensuring its vertical stability in the pile hole. Attached Figure Description

[0016] Figure 1 This is a fracture view according to an embodiment of the present invention.

[0017] Figure 2 This is a three-dimensional schematic diagram of the adjustment frame assembly in one embodiment of the present invention.

[0018] Figure 3 This is a three-dimensional schematic diagram of a gripper assembly in one embodiment of the present invention.

[0019] Figure 4 This is a three-dimensional schematic diagram of the bottom adjustment component in one embodiment of the present invention.

[0020] Figure 5 This is a perspective view of the bottom adjustment component in another embodiment of the present invention.

[0021] Figure 6 This is a perspective view of the lowering frame assembly in one embodiment of the present invention.

[0022] Figure 7 This is a three-dimensional schematic diagram of a synchronous lowering frame in one embodiment of the present invention.

[0023] Figure 8 This is a three-dimensional schematic diagram of the synchronous lowering frame after the outer arc plate is removed in one embodiment of the present invention.

[0024] In the picture: 10. Construction hoist; 20. Adjustment frame assembly; 21. Adjustment vertical frame; 22. Driven moving frame; 222. Install sliding column; 23. Connecting horizontal column; 24. Pull adjustment element; 241. Pull adjustment motor; 242. Pull adjustment plate; 243. Pull adjustment block; 244. Upper adjustment ring; 245. Lower adjustment base frame; 246. Pull adjustment screw; 247. Threaded adjustment hole; 248. Installation 26. Slide rail; 30. Pulling rod; 31. Gripper assembly; 32. Gripper mounting bracket; 33. Adjusting mounting column; 34. Gripper adjusting cylinder; 35. Gripper clamping frame; 36. Adjusting connecting rod; 37. Clamping cylinder; 38. Gripper element; 39. Holding gripper; 30. Vertical roller; 31. Clamping connecting rod; 32. Preset vertical groove; 33. Roller shaft; 44. Bottom adjusting assembly Components; 41. Bottom lifting frame; 411. Pre-set through hole; 412. Radial slide groove; 413. Centering adjustment platform; 42. Centering element; 421. Radial slide rail; 422. Push slider; 423. Connecting vertical rod; 424. Synchronous connecting rod; 425. Centering cylinder; 43. Elastic ring; 431. Elastic arc plate; 432. Insertion slot; 433. Insertion block; 50. Lowering frame assembly; 51. Synchronous lowering frame; 510, spring buckle groove; 511, arc-shaped clamping plate; 512, lowering buffer; 513, lowering component; 514, outer arc plate; 515, radial mounting sliding hole; 516, elastic arc strip; 517, abutting wheel; 518, radial sliding column; 519, transverse sliding bar; 521, sliding insertion rod; 522, arc-shaped trigger surface; 523, triangular push block; 524, strip-shaped sliding groove. Detailed Implementation

[0025] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0026] In the description of this invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figures 1 to 8 A rebar cage positioning device for bridge construction includes a construction hanger 10, an adjusting frame assembly 20, a gripper assembly 30, a bottom adjusting assembly 40, and a lowering frame assembly 50. The bottom of the construction hanger 10 is installed in the installation ground. The adjusting frame assembly 20 includes an adjusting vertical frame 21, a driven moving frame 22, two connecting horizontal columns 23, and a pulling adjusting element 24. The adjusting vertical frame 21 and the driven moving frame 22 are slidably installed on both sides of the bottom of the construction hanger 10 via adjusting motors. The horizontal column 23 is installed at both ends of the adjusting vertical frame 21 and the inner middle of the driven moving frame 22 respectively. The driven moving frame 22 has a recessed mounting hole in the middle of its side wall. The four corners of the inner side of the driven moving frame 22 are respectively provided with mounting sliding columns 222. The pulling adjustment element 24 is installed in the driven moving frame 22. The outside of the gripper assembly 30 is installed in the inner middle of the adjusting vertical frame 21. The bottom adjustment assembly 40 is installed in the pulling adjustment element 24. The lowering frame assembly 50 is connected to the bottom adjustment assembly 40.

[0029] The pull-adjustment element 24 includes a pull-adjustment motor 241, a pull-adjustment screw 246, a pull-adjustment plate 242, two pull-adjustment blocks 243, an upper adjustment ring 244, and a lower adjustment base 245. The pull-adjustment motor 241 is installed in the middle of the inner side of the driven moving frame 22. The outer end of the pull-adjustment screw 246 is rotatably installed in the mounting hole, and the output shaft of the pull-adjustment motor 241 is connected to the pull-adjustment screw 246. The four corners of the pull-adjustment plate 242 are slidably installed in four mounting slide columns 222, and the middle of the pull-adjustment plate 242 is recessed with threads. The adjustment hole 247 is threadedly connected to the pull adjustment screw 246. The outer side of the pull adjustment plate 242 is provided with a mounting slide rail 248. Two pull adjustment blocks 243 are slidably installed on the top and bottom of the mounting slide rail 248 respectively through a moving motor. The upper adjustment ring 244 is sleeved on the outer wall of the steel cage, and the upper adjustment ring 244 is connected to the pull adjustment block 243 located at the top through a pull rod 26. The lower adjustment base 245 is installed in the installation ground, and the lower adjustment base 245 is connected to the pull adjustment block 243 located at the bottom through a pull rod 26.

[0030] The gripper assembly 30 includes a gripper mounting frame 31, four gripper adjusting cylinders 32, a gripper clamping frame 33, four clamping cylinders 34, and two gripper elements 35. The gripper mounting frame 31 is mounted on the outer side of the middle of the inner side of the adjusting vertical frame 21. Adjusting mounting slides 311 protrude from the middle of the two ends of the inner side of the gripper mounting frame 31. The two ends of the gripper clamping frame 33 are slidably mounted in the two adjusting mounting slides 311. Adjusting connecting rods 331 protrude from the top and bottom of the inner end of the gripper clamping frame 33. The four clamping cylinders 34 are respectively mounted on the two ends of the gripper mounting frame 31, and the output shafts of the four clamping cylinders 34 are respectively connected to the four adjusting connecting rods 331. The four clamping cylinders 34 are rotatably mounted on the top and bottom ends of the gripper clamping frame 33. The two gripper elements 35 are rotatably mounted on the outer side of the middle ends of the gripper clamping frame 33.

[0031] Each gripper element 35 includes a gripping handle 351 and multiple vertical rollers 352. The gripping handle 351 is rotatably mounted on the outer side of one end of the gripper holding frame 33. The top surface and the middle part of the bottom of the gripping handle 351 are respectively provided with gripper connecting rods 353. The gripper connecting rods 353 are rotatably connected to the output shaft of the gripping cylinder 34. The inner wall of the gripping handle 351 is recessed with multiple preset vertical grooves 354 along the circumferential direction. Each preset vertical groove 354 is rotatably provided with a roller shaft 355. The multiple vertical rollers 352 are respectively installed in the multiple roller shafts 355.

[0032] The bottom adjustment assembly 40 includes a bottom lifting frame 41, multiple centering elements 42, and elastic rings 43. The bottom lifting frame 41 is mounted on the top of the lower adjustment base 245. A preset through hole 411 is recessed in the middle of the top surface of the bottom lifting frame 41. Multiple radial grooves 412 are recessed at intervals along the circumferential direction on the outer edge of the bottom surface of the bottom lifting frame 41. Multiple centering adjustment platforms 413 are protruding on the bottom surface of the bottom lifting frame 41. The multiple centering adjustment platforms 413 are respectively arranged opposite to the multiple radial grooves 412. Multiple centering elements 42 are respectively installed at intervals along the circumferential direction in the bottom lifting frame 41, and the multiple centering elements 42 are respectively arranged opposite to the multiple radial grooves 412. The elastic rings 43 are respectively clamped in the inner wall of the multiple centering elements 42.

[0033] Each centering element 42 includes two radial slide rails 421, a pusher slider 422, a connecting vertical rod 423, a synchronous connecting rod 424, and a centering cylinder 425. The two radial slide rails 421 are both installed on the top surface of the bottom lifting frame 41, and the two radial slide rails 421 are respectively located on both sides of the radial slide groove 412. The two sides of the bottom surface of the pusher slider 422 are slidably installed on the top of the two radial slide rails 421. The top of the connecting vertical rod 423 is installed in the middle of the bottom surface of the pusher slider 422. The outer end of the synchronous connecting rod 424 is connected to the bottom surface of the connecting vertical rod 423. The centering cylinder 425 is installed in the centering adjustment table 413, and the output shaft of the centering cylinder 425 is connected to the inner end of the synchronous connecting rod 424.

[0034] The lowering frame assembly 50 includes three synchronous lowering frames 51, three connecting spring buckles, and three synchronous lifting rods. The inner walls of the three synchronous lowering frames 51 are recessed on both sides, and the two ends of the three connecting spring buckles are respectively engaged in the six spring buckle slots 510. The bottom ends of the three synchronous lifting rods are respectively installed on the top of the three synchronous lowering frames 51, and the top ends of the three synchronous lifting rods are respectively connected to the three corresponding synchronous connecting rods 424.

[0035] Each synchronous lowering frame 51 includes an arc-shaped clamping plate 511, a lowering buffer 512, a lowering element 513, and an outer arc-shaped plate 514. Two spring buckle grooves 510 are respectively set on both sides of the middle of the inner wall of the arc-shaped clamping plate 511. The inner side of the lowering buffer 512 is installed on the middle of the outer side of the arc-shaped clamping plate 511. The bottom end of the synchronous lifting rod is connected to the middle of the top surface of the lowering buffer 512. The top and bottom of the outer side of the lowering buffer 512 are respectively recessed with radial mounting sliding holes 515. The lowering element 513 is installed in the two radial mounting sliding holes 515. The middle of the inner side of the outer arc-shaped plate 514 is connected to the output shaft of the lowering buffer 512.

[0036] The outer arc plate 514 has elastic arc strips 516 protruding from the top of one end and the bottom of the other end, and each elastic arc strip 516 has a support wheel 517 rotatably mounted on its outer end.

[0037] The lowering element 513 includes two radial slide pillars 518, two transverse slide bars 519, and two compression springs. The outer ends of the two radial slide pillars 518 are respectively installed on the top and bottom of the outer arc-shaped plate 514. The inner ends of the two radial slide pillars 518 are each provided with a sliding insert rod 521. The two sliding insert rods 521 are slidably installed in the two radial mounting holes 515. The outer edge of the inner end of each radial slide pillar 518 is recessed with an arc-shaped trigger surface 522. The inner ends of the outer sides of the two transverse slide bars 519 are each provided with a triangular push block 523. The inner ends of the outer sides of the 9 are all recessed with strip grooves 524. The transverse slide bars 519 are slidably installed in the radial slide columns 518 through the strip grooves 524. A return spring is provided between the outer end of the strip groove 524 and the outer wall of the radial slide column 518. The two transverse slide bars 519 are arranged in opposite directions. The outer ends of the two transverse slide bars 519 abut against the inner walls of the two elastic arc strips 516. The outer ends of the two compression springs are respectively installed on the outer edges of the inner ends of the two radial slide columns 518. The inner ends of the two compression springs slide against the outer sides of the two triangular push blocks 523.

[0038] For example, in one embodiment: the elastic ring 43 includes a plurality of interlocking elastic arc-shaped pieces 431. Each elastic arc-shaped piece 431 has a recessed insertion groove 432 at one end and an insertion block 433 protruding at the other end. The insertion block 433 is inserted and connected to the insertion groove 432 of another elastic arc-shaped piece 431. The number of elastic arc-shaped pieces 431 of the elastic ring 43 can be selected according to the diameter of the reinforcing cage to be constructed, so as to synchronously adjust the size of the elastic ring 43. A crane is provided on the top of the construction hanger 10.

[0039] For example, in one embodiment: when it is necessary to place the reinforcing cage, the bottom of the construction hoist 10 is installed in the installation ground, and the lower adjusting base 245 is positioned opposite the pile hole. The top of the reinforcing cage is connected to the lowering end of the crane, and the upper adjusting pull ring 244 is slidably sleeved on the reinforcing cage. The lowering frame assembly 50 is then lowered into the pile hole, and the inner walls of the arc-shaped clamping plates 511 of its three synchronous lowering frames 51 are slidably sleeved on the reinforcing cage. The abutting roller 517 rotates and abuts against the inner wall of the pile hole. Subsequently, the four gripper adjusting cylinders 32 are activated, driving the gripper clamping frame 33, the four clamping cylinders 34, and... Two gripper elements 35 are moved toward the rebar cage until the inner end of the inner wall of the gripper 351 abuts against the outer wall of the rebar cage. Then, four clamping cylinders 34 are activated to drive the two gripper elements 35 to rotate inward and grip the rebar cage. The centering cylinders 425 of the multiple centering elements 42 are driven, which in turn drive the synchronous connecting rod 424, the connecting vertical rod 423 and the pushing slider 422 to move toward the center, thereby gripping the rebar cage in multiple places. This ensures the accurate and vertical lowering of the rebar cage, ensures the uniform thickness of the subsequent pouring, improves the smoothness of the lowering, and avoids scraping the hole wall during lowering.

[0040] For example, in one embodiment: when a misalignment occurs during lowering, the rebar cage will press against the synchronous lowering frame 51 in the misalignment direction. Since the two ends of the three connecting spring buckles are respectively engaged in the spring buckle grooves 510 of the three synchronous lowering frames 51, when the rebar cage presses against the synchronous lowering frame 51, the synchronous lowering frame 51 will deflect, causing the elastic arc strip 516 of the synchronous lowering frame 51 to bend and deform, thereby pushing the transverse slide bar 519 in that direction. This causes the transverse slide bar 519 and the triangular push block 523 to move inward, thereby pushing against the two radial slide columns 518 and the two sliding insert rods 521. Since the supporting roller 517 rotates and abuts against the inner wall of the pile hole at this time, when the triangular push block 523 moves inward, it will push the lowering buffer 512 towards... The center of the pile hole moves, causing the arc-shaped clamping plate 511 to move accordingly, pushing the bottom of the reinforcing cage back into position. At the same time, since the bottom end of the synchronous lifting rod is connected to the middle of the top surface of the lowering buffer 512, and the top end of the synchronous lifting rod is connected to the corresponding synchronous connecting rod 424, when the lowering buffer 512 moves towards the center of the pile hole, the synchronous connecting rod 424, the connecting vertical rod 423, and the pushing slider 422 connected to it will move accordingly, synchronously pushing and adjusting the reinforcing cage, and sending signals to the adjusting motor, the pulling adjusting motor 241, and the moving motor. These motors will drive the upper adjusting pull ring 244 and the lower adjusting base frame 245 to move according to the degree of deviation, thereby realizing multi-layer straightening correction and dynamic centering of the reinforcing cage, preventing the reinforcing cage from deviating or tilting.

[0041] Installation process: The bottom of the construction hanger 10 is installed in the installation ground. The two ends of the two connecting horizontal columns 23 are respectively installed at the two ends of the inner middle of the adjusting vertical frame 21 and the driven moving frame 22. The pulling adjusting motor 241 is installed in the inner middle of the driven moving frame 22. The outer end of the pulling adjusting screw 246 is rotatably installed in the installation rotating hole, and the output shaft of the pulling adjusting motor 241 is connected to the pulling adjusting screw 246. The four corners of the pulling adjusting plate 242 are slidably installed in the four installation sliding columns 222. The threaded adjusting hole 247 is threadedly connected to the pulling adjusting screw 246. The two pulling adjusting blocks 243 are slidably installed on the top and bottom of the installation slide rail 248 through the moving motor. The upper adjusting ring 244 is sleeved on the outer wall of the reinforcing cage. 4. The lower adjusting base 245 is installed in the installation ground by connecting the pulling rod 26 to the pulling adjusting block 243 located at the top. The lower adjusting base 245 is connected to the pulling adjusting block 243 located at the bottom by connecting the pulling rod 26. The outer side of the gripper mounting frame 31 is installed in the middle of the inner side of the adjusting vertical frame 21. The two ends of the gripper clamping frame 33 are slidably installed in the two adjusting mounting slide columns 311. The four clamping cylinders 34 are respectively installed at both ends of the gripper mounting frame 31, and the output shafts of the four clamping cylinders 34 are respectively connected to the four adjusting connecting rods 331. The four clamping cylinders 34 are rotatably installed at the top and bottom ends of the gripper clamping frame 33. The outer side of the gripping gripper 351 is rotatably installed at one end of the middle of the gripper clamping frame 33. The gripper connecting rod 353 is connected to the gripper clamping frame 33. The output shaft of the holding cylinder 34 is rotatably connected. Multiple vertical rollers 352 are respectively installed in multiple roller shafts 355. The bottom lifting frame 41 is installed on the top of the lower adjusting base 245. Multiple centering elements 42 are installed at intervals along the circumferential direction in the bottom lifting frame 41, and the multiple centering elements 42 are respectively arranged opposite to multiple radial slide grooves 412. Elastic rings 43 are respectively clamped in the inner wall of the multiple centering elements 42. Two radial slide rails 421 are installed on the top surface of the bottom lifting frame 41, and the two radial slide rails 421 are respectively located on both sides of the radial slide grooves 412. The two sides of the bottom surface of the push slider 422 are slidably installed on the top of the two radial slide rails 421. The top of the connecting vertical rod 423 is installed in the middle of the bottom surface of the push slider 422. The synchronous connecting rod 424 is connected. The outer end is connected to the bottom surface of the connecting vertical rod 423. The centering cylinder 425 is installed in the centering adjustment table 413, and the output shaft of the centering cylinder 425 is connected to the inner end of the synchronous connecting rod 424. The two ends of the three connecting spring buckles are respectively snapped into the six spring buckle slots 510. The bottom ends of the three synchronous lifting rods are respectively installed on the top of the three synchronous lowering frames 51. The top ends of the three synchronous lifting rods are respectively connected to the corresponding three synchronous connecting rods 424. The inner side of the lowering buffer 512 is installed on the middle of the outer side of the arc-shaped clamping plate 511. The bottom end of the synchronous lifting rod is connected to the middle of the top surface of the lowering buffer 512. The outer ends of the two radial sliding columns 518 are respectively installed on the top and bottom of the outer arc plate 514. The two sliding insert rods 521 are respectively slidably installed in the two radial mounting sliding holes 515.The transverse slide bar 519 is slidably mounted in the radial slide column 518 via the strip groove 524. The two transverse slide bars 519 are arranged opposite to each other. The outer ends of the two transverse slide bars 519 abut against the inner walls of the two elastic arc-shaped bars 516. The outer ends of the two compression springs are respectively mounted on the outer edges of the inner ends of the two radial slide columns 518, and the inner ends of the two compression springs slidably abut against the outer sides of the two triangular push blocks 523.

[0042] This invention can achieve: 1. This system enables multi-point holding and centering of the reinforcing cage, and can firmly and evenly clamp the reinforcing cage, ensuring the accurate position of the reinforcing cage in the pile hole, avoiding eccentricity or tilting, reducing friction and scraping between the reinforcing cage and the hole wall, avoiding damage to the pile hole wall, ensuring a smooth lowering process, maintaining the precise verticality and uniform spacing of the reinforcing cage, improving the overall construction accuracy and the uniformity of the thickness during subsequent concrete pouring, improving the overall quality and durability of the pile foundation, and also adapting to reinforcing cages of different specifications, enhancing the versatility and adaptability of the equipment.

[0043] 2. This invention can automatically push, straighten, and dynamically center the reinforcing cage in multiple layers when it becomes misaligned, achieving precise and intelligent adjustment to prevent the reinforcing cage from tilting or deviating, avoiding excessive pressure or scraping on the pile hole wall when the reinforcing cage is misaligned, protecting the integrity of the pile hole structure, and ensuring its vertical stability in the pile hole.

[0044] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A positioning device for a steel cage hanger used in bridge construction, characterized in that: The system includes a construction gantry (10), an adjustment frame assembly (20), a gripper assembly (30), a bottom adjustment assembly (40), and a lowering frame assembly (50). The bottom of the construction gantry (10) is installed in the ground. The adjustment frame assembly (20) includes an adjusting vertical frame (21), a driven moving frame (22), two connecting horizontal columns (23), and a pulling adjustment element (24). The adjusting vertical frame (21) and the driven moving frame (22) are slidably installed on both sides of the bottom of the construction gantry (10) via an adjustment motor. The two ends of the two connecting horizontal columns (23) are respectively... The two ends of the vertical adjustment frame (21) and the driven moving frame (22) are installed on the inner middle. The driven moving frame (22) has a recessed mounting hole in the middle of its side wall. The four corners of the inner side of the driven moving frame (22) are respectively provided with mounting slides (222). The pull adjustment element (24) is installed in the driven moving frame (22). The outside of the gripper assembly (30) is installed in the middle of the inner side of the vertical adjustment frame (21). The bottom adjustment assembly (40) is installed in the pull adjustment element (24). The lowering frame assembly (50) is connected to the bottom adjustment assembly (40).

2. The steel cage suspension positioning device for bridge construction according to claim 1, characterized in that: The pull adjustment element (24) includes a pull adjustment motor (241), a pull adjustment screw (246), a pull adjustment plate (242), two pull adjustment blocks (243), an upper adjustment pull ring (244), and a lower adjustment base (245). The pull adjustment motor (241) is installed in the middle of the inner side of the driven moving frame (22). The outer end of the pull adjustment screw (246) is rotatably installed in the mounting hole, and the output shaft of the pull adjustment motor (241) is connected to the pull adjustment screw (246). The four corners of the pull adjustment plate (242) are slidably installed in four mounting slides (222), and the middle of the pull adjustment plate (242) is recessed with a thread. Adjustment hole (247), threaded adjustment hole (247) is threadedly connected to pull adjustment screw (246), and installation slide rail (248) is protruding on the outer side of pull adjustment plate (242). Two pull adjustment blocks (243) are respectively slidably installed on the top and bottom of installation slide rail (248) by moving motor. Upper adjustment pull ring (244) is sleeved on the outer wall of steel cage, and upper adjustment pull ring (244) is connected to pull adjustment block (243) located at the top by pull rod (26). Lower adjustment base frame (245) is installed in the installation ground, and lower adjustment base frame (245) is connected to pull adjustment block (243) located at the bottom by pull rod (26).

3. The steel cage suspension positioning device for bridge construction according to claim 2, characterized in that: The gripper assembly (30) includes a gripper mounting frame (31), four gripper adjusting cylinders (32), a gripper clamping frame (33), four clamping cylinders (34), and two gripper elements (35). The gripper mounting frame (31) is mounted on the outer side of the inner middle of the adjusting vertical frame (21). Adjusting mounting slides (311) are respectively protruding from the middle of the two ends of the inner side of the gripper mounting frame (31). The two ends of the gripper clamping frame (33) are slidably mounted in the two adjusting mounting slides (311). Adjustment connecting rods (331) are protruding from the top and bottom of the inner end of the gripper frame (33). Four gripping cylinders (34) are respectively installed at both ends of the gripper mounting frame (31), and the output shafts of the four gripping cylinders (34) are respectively connected to the four adjustment connecting rods (331). The four gripping cylinders (34) are respectively rotatably installed at both ends of the top and bottom of the gripper frame (33). The outer sides of the two gripper elements (35) are respectively rotatably installed at both ends of the middle part of the gripper frame (33).

4. The steel cage suspension positioning device for bridge construction according to claim 3, characterized in that: Each gripper element (35) includes a gripping gripper (351) and multiple vertical rollers (352). The gripping gripper (351) is rotatably mounted on the outer side of one end of the gripper holder (33). The gripping gripper (351) has a gripper connecting rod (353) protruding from the top surface and the middle part of the bottom. The gripper connecting rod (353) is rotatably connected to the output shaft of the gripping cylinder (34). The inner wall of the gripping gripper (351) is recessed along the circumferential direction with multiple preset vertical grooves (354). Each preset vertical groove (354) is rotatably provided with a roller shaft (355). The multiple vertical rollers (352) are respectively installed in the multiple roller shafts (355).

5. The steel cage suspension positioning device for bridge construction according to claim 4, characterized in that: The bottom adjustment assembly (40) includes a bottom lifting frame (41), multiple centering elements (42) and elastic rings (43). The bottom lifting frame (41) is installed on the top of the lower adjustment base frame (245). A preset through hole (411) is recessed in the middle of the top surface of the bottom lifting frame (41). Multiple radial grooves (412) are recessed at intervals along the circumferential direction on the outer edge of the bottom surface of the bottom lifting frame (41). Multiple centering adjustment platforms (413) are protruding on the bottom surface of the bottom lifting frame (41). The multiple centering adjustment platforms (413) are respectively arranged opposite to the multiple radial grooves (412). Multiple centering elements (42) are respectively installed at intervals along the circumferential direction in the bottom lifting frame (41), and the multiple centering elements (42) are respectively arranged opposite to the multiple radial grooves (412). The elastic rings (43) are respectively clamped in the inner wall of the multiple centering elements (42).

6. The rebar cage suspension positioning device for bridge construction according to claim 5, characterized in that: Each centering element (42) includes two radial slide rails (421), a pusher slider (422), a connecting vertical rod (423), a synchronous connecting rod (424), and a centering cylinder (425). The two radial slide rails (421) are installed on the top surface of the bottom lifting frame (41), and the two radial slide rails (421) are located on both sides of the radial slide groove (412). The bottom sides of the pusher slider (422) are slidably installed on the top of the two radial slide rails (421). The top of the connecting vertical rod (423) is installed in the middle of the bottom surface of the pusher slider (422). The outer end of the synchronous connecting rod (424) is connected to the bottom surface of the connecting vertical rod (423). The centering cylinder (425) is installed in the centering adjustment table (413), and the output shaft of the centering cylinder (425) is connected to the inner end of the synchronous connecting rod (424).

7. The rebar cage suspension positioning device for bridge construction according to claim 6, characterized in that: The lowering frame assembly (50) includes three synchronous lowering frames (51), three connecting spring buckles and three synchronous lifting rods. The inner walls of the three synchronous lowering frames (51) are respectively recessed with spring buckle grooves (510) on both sides. The two ends of the three connecting spring buckles are respectively locked in the six spring buckle grooves (510). The bottom ends of the three synchronous lifting rods are respectively installed on the top of the three synchronous lowering frames (51), and the top ends of the three synchronous lifting rods are respectively connected to the corresponding three synchronous connecting rods (424).

8. The steel cage suspension positioning device for bridge construction according to claim 7, characterized in that: Each synchronous lowering frame (51) includes an arc-shaped clamping plate (511), a lowering buffer (512), a lowering element (513), and an outer arc-shaped plate (514). Two spring buckle grooves (510) are respectively set on both sides of the middle of the inner wall of the arc-shaped clamping plate (511). The inner side of the lowering buffer (512) is installed on the middle of the outer side of the arc-shaped clamping plate (511). The bottom end of the synchronous lifting rod is connected to the middle of the top surface of the lowering buffer (512). The top and bottom of the outer side of the lowering buffer (512) are respectively recessed with radial mounting sliding holes (515). The lowering element (513) is installed in the two radial mounting sliding holes (515). The middle of the inner side of the outer arc-shaped plate (514) is connected to the output shaft of the lowering buffer (512).

9. The steel cage suspension positioning device for bridge construction according to claim 8, characterized in that: The outer arc plate (514) has elastic arc strips (516) protruding from the top of one end and the bottom of the other end, and each elastic arc strip (516) has a support wheel (517) rotatably mounted on its outer end.

10. The steel cage suspension positioning device for bridge construction according to claim 9, characterized in that: The lowering element (513) includes two radial slide columns (518), two transverse slide bars (519), and two compression springs. The outer ends of the two radial slide columns (518) are respectively installed on the top and bottom of the outer arc plate (514). The inner ends of the two radial slide columns (518) are each provided with a sliding insert rod (521). The two sliding insert rods (521) are respectively slidably installed in two radial mounting holes (515). The outer edge of the inner end of each radial slide column (518) is recessed with an arc-shaped trigger surface (522). The inner ends of the outer sides of the two transverse slide bars (519) are each provided with a triangular push block (523). Each transverse slide bar ( The inner end of the outer side of 519 is provided with a strip groove (524). The transverse slide bar (519) is slidably installed in the radial slide column (518) through the strip groove (524). A return spring is provided between the outer end of the strip groove (524) and the outer wall of the radial slide column (518). The two transverse slide bars (519) are arranged opposite to each other. The outer ends of the two transverse slide bars (519) abut against the inner wall of the two elastic arc strips (516). The outer ends of the two compression springs are respectively installed on the outer edge of the inner end of the two radial slide columns (518). The inner ends of the two compression springs slide against the outer side of the two triangular push blocks (523).

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