Hoisting tool for bridge disassembly

Abstract

The utility model provides a hoisting tool for bridge disassembly, which comprises four fixing bolts, four fixing sleeves, four rotating pieces, four hanging pieces and a hoisting plate, the four fixing bolts are arranged in one-to-one correspondence with four through holes, and the four fixing bolts upwards penetrate through the through holes; the four fixing sleeves are in threaded connection with the four fixing bolts in a one-to-one correspondence manner; the four rotating pieces are arranged in the four fixing sleeves in a one-to-one correspondence mode and upwards penetrate through the bottom walls of the fixing sleeves, the rotating pieces are rotationally connected with the fixing sleeves, and lower hanging rings are arranged on the upper portions of the rotating pieces; the four hanging pieces are arranged above the four rotating pieces in a one-to-one correspondence mode, upper hanging rings are arranged at the bottoms of the hanging pieces, and the upper hanging rings are connected with the lower hanging rings through connecting ropes; the hanging plate is arranged above the hanging piece, and the top of the hanging plate is provided with a hanging ring used for allowing a hanging rope to penetrate through. According to the hoisting tool for disassembling the bridge, the hoisting stability of the main beam can be guaranteed, the situation that the main beam falls off in the hoisting process is avoided, and potential safety hazards are eliminated.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, and more specifically, it relates to a hoisting tool for bridge dismantling. Background Technology

[0002] Bridges are structures built across rivers, lakes, and seas, traversing unfavorable terrain to enable vehicles and pedestrians to pass smoothly. They are among the most important types of construction in civil engineering. With the continuous increase in traffic volume on highway bridges, simply supported beam bridges on highways can no longer meet current demands, necessitating the demolition of unsuitable bridges.

[0003] In existing technologies, the main beam is usually hoisted by binding it with two ropes. The two ropes are close to both ends of the main beam and wrap around it. Often, the binding positions of the two ropes are not asymmetrical, or the binding positions of the ropes change due to swaying during the hoisting process, which can cause the main beam to tilt. This poses a risk of the main beam falling and has a great safety hazard. Utility Model Content

[0004] This utility model provides a hoisting tool for bridge dismantling, which can ensure the stability of the main beam hoisting, avoid the main beam falling during the hoisting process, and eliminate safety hazards.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A hoisting fixture for bridge dismantling is provided, comprising four fixing bolts, four fixing sleeves, four rotating parts, four hanging parts, and a hanging plate. The four fixing bolts are correspondingly arranged with four through holes, and are arranged upwards through the through holes; the four fixing sleeves are threadedly connected to the four fixing bolts; the four rotating parts are respectively arranged in the four fixing sleeves, and are arranged upwards through the bottom wall of the fixing sleeves, and are rotatably connected to the fixing sleeves. A lower lifting ring is provided at the upper part of each rotating part; the four hanging parts are correspondingly arranged above the four rotating parts, and an upper lifting ring is provided at the bottom of each hanging part. The upper and lower lifting rings are connected by a connecting rope; the hanging plate is arranged above the hanging parts, and a hanging ring for threading a hoisting rope is provided at the top of the hanging plate.

[0006] In one possible implementation, the rotating component includes a rod and a nut. The rod is disposed inside the fixed sleeve and extends upward through the bottom wall of the fixed sleeve. The rod and the fixed sleeve are rotatably engaged. The lower end of the rod is provided with a limiting platform that protrudes outward. The nut is threadedly sleeved on the outer periphery of the rod and located above the fixed sleeve. The lower lifting ring is connected to the upper end face of the nut.

[0007] In one possible implementation, the bottom of the suspended platform is provided with two horizontally spaced adjusting rods. The two adjusting rods extend horizontally and their main shafts are parallel to each other. Two adjacent hanging parts are slidably connected to one of the adjusting rods, and the other two hanging parts are slidably connected to the other adjusting rod.

[0008] In some embodiments, the hanging component is a sliding sleeve that is slidably fitted around the outer periphery of the adjusting rod, and the sliding sleeve is locked by a locking component.

[0009] In some embodiments, the locking member radially penetrates the sliding sleeve and is threadedly connected to the sliding sleeve, with the inner end of the locking member abutting against the outer peripheral wall of the adjusting rod.

[0010] In some embodiments, sliders that extend upward through the hanging plate are connected to the outer peripheral walls of both adjusting rods, and the sliders are slidably connected to the hanging plate along a direction perpendicular to the interval between the two adjusting rods.

[0011] In some embodiments, the top of the hanging plate is rotatably connected to a bidirectional screw extending along a direction perpendicular to the interval between the two adjusting rods. The bidirectional screw passes through the two sliders and is threadedly connected to each of the two sliders. The bidirectional screw can rotate to drive the two sliders to move towards or away from each other.

[0012] In some embodiments, the top of the hanging plate is provided with a portal frame spanning above the bidirectional screw, and the hanging ring is connected to the top of the portal frame.

[0013] The lifting fixture for bridge dismantling provided in this embodiment, compared with the prior art, firstly, four fixing bolts are passed one by one through the four through holes from bottom to top, and then four fixing sleeves are threaded to the four fixing bolts one by one. Then, the lifting rope is threaded onto the hanging ring, and finally the lifting equipment is used to lift the lifting rope, thereby realizing the lifting of the main beam. This lifting method ensures the stability of the main beam lifting, avoids the main beam falling during the lifting process, and eliminates safety hazards. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A structural schematic diagram of the lifting fixture for bridge dismantling provided in an embodiment of this utility model;

[0016] Figure 2 A schematic diagram of the disassembly structure of a hoisting tool for bridge dismantling provided in an embodiment of this utility model;

[0017] Figure 3 For the implementation of this utility model Figure 2 A magnified schematic diagram of the local structure at point I;

[0018] Figure 4This is a schematic diagram of the disassembly structure of a hoisting tool for bridge dismantling, provided as an embodiment of the present invention.

[0019] The following are the labeling elements in the figure:

[0020] 1. Main beam; 2. Through hole; 10. Fixing bolt; 20. Fixing sleeve; 30. Rotating component; 31. Lower lifting ring; 32. Lifting rod; 321. Limiting platform; 33. Nut; 40. Hanging component; 41. Upper lifting ring; 42. Connecting rope; 50. Hanging plate; 51. Portal frame; 52. Hanging ring; 60. Adjusting rod; 70. Locking component; 80. Sliding block; 90. Double-acting screw. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0023] The hoisting equipment used for bridge dismantling is used for the main beam 1 of the bridge. The main beam 1 has four through holes 2 arranged in a rectangular pattern along the vertical direction.

[0024] Please see Figures 1 to 4The present invention provides a lifting fixture for bridge dismantling. The lifting fixture for bridge dismantling includes four fixing bolts 10, four fixing sleeves 20, four rotating parts 30, four hanging parts 40, and a lifting plate 50. The four fixing bolts 10 are correspondingly arranged with four through holes 2, and extend upwards through the through holes 2. The four fixing sleeves 20 are threadedly connected to the four fixing bolts 10. The four rotating parts 30 are respectively arranged inside the four fixing sleeves 20, extending upwards through the bottom wall of the fixing sleeves 20. The rotating parts 30 are rotatably connected to the fixing sleeves 20, and a lower lifting ring 31 is provided at the upper part of the rotating parts 30. The four hanging parts 40 are correspondingly arranged above the four rotating parts 30, and an upper lifting ring 41 is provided at the bottom of each hanging part 40. The upper lifting ring 41 and the lower lifting ring 31 are connected by a connecting rope 42. The lifting plate 50 is arranged above the hanging parts 40, and a hanging ring 52 for threading a lifting rope is provided at the top of the lifting plate 50.

[0025] This application provides a hoisting tool for bridge dismantling. In actual use, four fixing bolts 10 are first passed through four through holes 2 from bottom to top, and four fixing sleeves 20 are threaded to the four fixing bolts 10. Then, the hoisting rope is threaded onto the hanging ring 52, and finally the hoisting equipment is used to lift the hoisting rope, thereby realizing the hoisting of the main beam 1. This hoisting method ensures the stability of the hoisting of the main beam 1, avoids the main beam 1 falling during the hoisting process, and eliminates safety hazards.

[0026] Because the fixing sleeve 20 is rotatably connected to the fixing bolt 10, rotating the fixing sleeve 20 will not affect the connecting rope 42.

[0027] Compared with the prior art, the hoisting fixture for bridge dismantling provided in this embodiment first passes four fixing bolts 10 one by one through four through holes 2 from bottom to top, and then connects four fixing sleeves 20 to the four fixing bolts 10 one by one with threads. Then, the hoisting rope is threaded on the hanging ring 52, and finally the hoisting equipment is used to lift the hoisting rope, thereby realizing the hoisting of the main beam 1. This hoisting method ensures the stability of the hoisting of the main beam 1, avoids the main beam 1 falling during the hoisting process, and eliminates safety hazards.

[0028] In one possible implementation, the aforementioned rotating member 30 adopts, as shown in... Figures 1 to 4 The structure shown is described in the following document. Figures 1 to 4 The rotating component 30 includes a lifting rod 32 and a nut 33. The lifting rod 32 is disposed inside the fixed sleeve 20 and extends upward through the bottom wall of the fixed sleeve 20. The lifting rod 32 is rotatably engaged with the fixed sleeve 20. The lower end of the lifting rod 32 is provided with a limiting platform 321 protruding outward. The nut 33 is threadedly sleeved on the outer periphery of the lifting rod 32 and located above the fixed sleeve 20. The lower lifting ring 31 is connected to the upper end face of the nut 33.

[0029] Specifically, a hole is provided through the bottom wall of the fixed sleeve 20. When installing the rotating component 30, the lifting rod 32 can pass through the hole from inside the fixed sleeve 20. By being limited by the limiting platform 321, part of the lifting rod 32 protrudes out of the fixed sleeve 20. Then, the nut 33 is threaded onto the outer circumference of the protruding part of the lifting rod 32, and a certain gap is maintained between the nut 33 and the fixed sleeve 20 to ensure that the lifting rod 32 can rotate relative to the fixed sleeve 20. Then, the nut 33 is welded to the lifting rod 32, which facilitates the installation of the rotating component 30 on the fixed sleeve 20.

[0030] The flexible connecting rope 42 has flexible deformation capability, which facilitates the installation of the rotating part 30 and the fixed sleeve 20.

[0031] In one possible implementation, the aforementioned hanging plate 50 adopts the following... Figure 1 , Figure 2 and Figure 4 The structure shown is described in the following document. Figure 1 , Figure 2 and Figure 4 The bottom of the hanging plate 50 is provided with two horizontally spaced adjusting rods 60. The two adjusting rods 60 extend horizontally and their main shafts are parallel to each other. Two adjacent hanging parts 40 are slidably connected to one of the adjusting rods 60, and the other two hanging parts 40 are slidably connected to the other adjusting rod 60.

[0032] Specifically, the adjusting rod 60 extends along the width direction of the main beam 1, and the hanging member 40 is provided in two sets. Each set of hanging members 40 includes two adjacent hanging members 40. The two sets of hanging members 40 are arranged in one-to-one correspondence with the two adjusting rods 60, and are slidably connected to the adjusting rods 60 along the axial direction of the corresponding adjusting rods 60, so as to adapt to the main beam 1 of different widths.

[0033] In some embodiments, see Figure 1 , Figure 2 and Figure 4 The hanging component 40 is a sliding sleeve that is slidably sleeved on the outer periphery of the adjusting rod 60, and the sliding sleeve is locked by the locking component 70.

[0034] Specifically, after the sliding sleeve is adjusted, the position of the sliding sleeve can be fixed by locking the locking part 70, thus preventing the sliding sleeve from shifting randomly during the hoisting process.

[0035] In some embodiments, see Figure 1 , Figure 2 and Figure 4 The locking element 70 radially penetrates the sliding sleeve and is threadedly connected to the sliding sleeve. The inner end of the locking element 70 abuts against the outer peripheral wall of the adjusting rod 60.

[0036] Specifically, after the sliding sleeve is adjusted, the inner end of the locking member 70 is made to abut against the outer peripheral wall of the adjusting rod 60 by rotating the locking member 70, thereby locking the position of the sliding sleeve and preventing the sliding sleeve from shifting randomly during the hoisting process.

[0037] In some embodiments, see Figure 1 , Figure 2 and Figure 4 Both adjusting rods 60 have sliders 80 connected to their outer peripheral walls, which are arranged upward through the hanging plate 50. The sliders 80 are slidably connected to the hanging plate 50 along a spacing direction perpendicular to the two adjusting rods 60.

[0038] Specifically, the hanging plate 50 is provided with a sliding groove extending along the interval direction perpendicular to the two adjusting rods 60. The slider 80 is slidably connected in the sliding groove and is set upward through the sliding groove, which facilitates the adjustment of the two sets of hanging parts 40 along the length direction of the main beam 1 to adapt to the main beam 1 of different lengths.

[0039] In some embodiments, see Figure 1 , Figure 2 and Figure 4 The top of the hanging plate 50 is rotatably connected to a bidirectional screw 90 extending along the interval direction perpendicular to the two adjusting rods 60. The bidirectional screw 90 passes through the two sliders 80 and is threadedly connected to the two sliders 80 respectively. The bidirectional screw 90 can rotate to drive the two sliders 80 to move towards each other or away from each other.

[0040] Specifically, by rotating the bidirectional screw 90, the two sliders 80 are driven to move towards or away from each other, thereby achieving synchronous adjustment of the distance between the two adjusting rods 60 and improving the accuracy of the adjustment.

[0041] In some embodiments, see Figure 1 , Figure 2 and Figure 4 The top of the hanging plate 50 is provided with a portal frame 51 spanning above the bidirectional screw 90, and the hanging ring 52 is connected to the top of the portal frame 51.

[0042] Specifically, the portal frame 51 is used to avoid the bidirectional screw 90, which facilitates the installation of the hanging ring 52 and prevents the hanging rope from interfering with other parts of the device.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 hoisting fixture for bridge dismantling, used on the main beam of the bridge, wherein the main beam has four through holes arranged in a rectangular pattern along its vertical direction, characterized in that... The hoisting fixtures include: Four fixing bolts are provided, each corresponding to one of the four through holes, and extend upward through the through holes; Four fixing sleeves are threadedly connected to the four fixing bolts one by one; Four rotating components are respectively and correspondingly installed in the four fixed sleeves and penetrate upward through the bottom wall of the fixed sleeves. The rotating components are rotatably connected to the fixed sleeves, and the upper part of the rotating components is provided with a lower lifting ring. Four hanging components are correspondingly positioned above the four rotating components. Each hanging component has an upper hanging ring at its bottom, and the upper and lower hanging rings are connected by a connecting rope. A hanging plate is positioned above the hanging component, and the top of the hanging plate is provided with a hanging ring for threading a hanging rope.

2. The lifting fixture for bridge dismantling as described in claim 1, characterized in that, The rotating component includes: A lifting rod, disposed within the fixed sleeve and extending upward through the bottom wall of the fixed sleeve, is rotatably engaged with the fixed sleeve. The lower end of the lifting rod has a limiting platform protruding outwards. A nut is threaded onto the outer circumference of the lifting rod and located above the fixing sleeve, and the lower lifting ring is connected to the upper end face of the nut.

3. The lifting fixture for bridge dismantling as described in claim 1, characterized in that, The bottom of the hanging plate is provided with two horizontally spaced adjusting rods. The two adjusting rods extend horizontally and their main shafts are parallel to each other. Two adjacent hanging parts are slidably connected to one of the adjusting rods, and the other two hanging parts are slidably connected to the other adjusting rod.

4. The lifting fixture for bridge dismantling as described in claim 3, characterized in that, The hanging component is a sliding sleeve that is slidably sleeved on the outer periphery of the adjusting rod, and the sliding sleeve is locked by a locking component.

5. The lifting fixture for bridge dismantling as described in claim 4, characterized in that, The locking member extends radially through the sliding sleeve and is threadedly connected to the sliding sleeve. The inner end of the locking member abuts against the outer peripheral wall of the adjusting rod.

6. The lifting fixture for bridge dismantling as described in claim 5, characterized in that, Each of the two adjusting rods has a slider that extends upward through the hanging plate on its outer peripheral wall. The slider is slidably connected to the hanging plate along a direction perpendicular to the interval between the two adjusting rods.

7. The lifting fixture for bridge dismantling as described in claim 6, characterized in that, The top of the hanging plate is rotatably connected to a bidirectional screw extending along a direction perpendicular to the interval between the two adjusting rods. The bidirectional screw passes through the two sliders and is threadedly connected to the two sliders respectively. The bidirectional screw can rotate to drive the two sliders to move towards each other or away from each other.

8. The lifting fixture for bridge dismantling as described in claim 7, characterized in that, The top of the hanging plate is provided with a portal frame spanning above the bidirectional screw, and the hanging ring is connected to the top of the portal frame.

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