Bent cap steel reinforcement framework installation lifting appliance

Abstract

The utility model relates to a cover beam steel reinforcement framework installation lifting appliance, and belongs to the field of bridge engineering construction equipment, the cover beam steel reinforcement framework installation lifting appliance comprises a suspension cross beam and a plurality of lifting unit pieces, the plurality of lifting unit pieces are connected with the suspension cross beam, and the suspension cross beam is provided with a plurality of adjusting long grooves; the length direction of the adjusting long groove is consistent with the length direction of the hanging cross beam, each hoisting unit piece comprises a connecting sling and a matching body which are connected with each other, a plurality of matching structures are arranged on the groove wall of the adjusting long groove, and the matching structures are used for fixing the matching bodies relative to the adjusting long groove when the connecting sling hangs an object. According to the lifting appliance, the multiple adjusting long grooves and the matching structures are arranged on the suspension cross beam, so that the arrangement positions of the lifting unit pieces on the suspension cross beam can be selectively adjusted according to conditions, and the stress balance and stability of the lifting appliance during working are improved.

Description

Technical Field

[0001] This application relates to the field of bridge construction equipment, and in particular to a lifting device for installing the steel reinforcement cage of a cap beam. Background Technology

[0002] A cap beam is a horizontal beam installed on top of a bridge pier to support, distribute, and transfer the load of the superstructure. It is also called a cap beam. It is a reinforced concrete or lightly reinforced concrete beam installed on the pier (abutment) or on the piles. Its main function is to support the bridge superstructure and transfer all the load to the substructure. Some cap beams are directly connected to the bridge piles, while others are connected to the columns first and then to the cap beam.

[0003] In related technologies, the cap beam is constructed using cast-in-place reinforced concrete: the steel reinforcement cage of the cap beam is hoisted onto the pier, and then formwork is erected on the pier, with the steel reinforcement cage inside the formwork. Concrete is poured into the inside of the formwork, and after curing, the formwork is removed, thus forming the reinforced concrete cap beam above the pier.

[0004] In terms of construction equipment, the lifting of steel reinforcement cages or formwork is usually achieved by using lifting equipment with lifting tools. The lifting tools are generally universal components, and their main structure includes a short crossbeam and slings fixed below the short crossbeam. That is, the position of the slings and the lifting connection point are fixed. For steel reinforcement cages of different sizes and shapes, universal lifting tools often cannot be adjusted specifically, which may result in poor balance and instability of the steel reinforcement cage during lifting, thereby increasing the safety risks during construction operations. Utility Model Content

[0005] To address the aforementioned issues, this application provides a lifting device for installing the reinforcing steel cage of a cap beam.

[0006] The technical solution for the installation lifting tool for the steel reinforcement cage of a cap beam provided in this application is as follows:

[0007] A lifting device for installing a reinforcing steel frame of a cap beam includes a suspension beam and multiple lifting units. Each lifting unit is connected to the suspension beam. The suspension beam has multiple adjusting slots, the length direction of which is consistent with the length direction of the suspension beam. Each lifting unit includes interconnected connecting slings and mating bodies. The walls of the adjusting slots are provided with multiple mating structures, which are used to fix the mating bodies relative to the adjusting slots when the connecting slings suspend objects.

[0008] Preferably, the mating structure is a positioning sawtooth, which is fixedly connected to the side wall of the adjusting groove near the connecting cable. Multiple positioning sawtooths are arranged in an array along the length of the adjusting groove. The mating body is a round steel bar, and a placement gap is formed between two adjacent positioning sawtooths for placing the round steel bar.

[0009] Preferably, a backstop block is mounted on the suspension beam and moves within the adjustment groove. The length of the backstop block along its sliding direction is greater than the width of a single placement gap, and the gap distance between the backstop block and the tooth tip of the positioning saw teeth is less than the diameter of the round steel.

[0010] Preferably, the anti-reverse block and the suspension beam are slidably connected, with the sliding direction parallel to the length direction of the adjusting groove, and the suspension beam or the anti-reverse block is provided with a fixing member for temporarily fixing the anti-reverse block relative to the suspension beam.

[0011] Preferably, the fixing element is a fixing pin, which is slidably connected to the anti-reverse block. The sliding direction is perpendicular to the length direction of the adjusting groove. The suspension beam has multiple stop holes, which are arranged along the sliding direction of the anti-reverse block. An automatic spring is connected between the anti-reverse block and the fixing pin, and the fixing pin is selectively inserted into one of the stop holes.

[0012] Preferably, a limiting ring is coaxially fixedly connected to the round steel, and a limiting groove is provided on the positioning saw teeth for the limiting ring to be embedded.

[0013] Preferably, the connecting sling includes a suspension rope and a padlock, the suspension rope and the padlock are fixedly connected, and mounting holes are provided on the side walls of both ends of the round steel. The length direction of the mounting holes is the radial direction of the round steel. The end of the suspension rope passes through the mounting hole and is fixedly connected to a safety block. The width of the safety block is greater than the diameter of the mounting hole.

[0014] This application includes at least one of the following beneficial technical effects:

[0015] 1. By adjusting the long groove, the matching structure, and the matching body, the matching body can be selectively positioned at one of the points in the long groove according to the actual situation of the steel reinforcement cage being hoisted. This achieves the purpose of adjusting the suspension point of the hoisting unit on the suspension beam, improves the force balance and stability of the hoisting equipment during operation, and thus improves the safety of construction operations.

[0016] 2. By setting the anti-reverse block, after the round steel is inserted into a certain placement gap, the anti-reverse block will close the upper opening of the placement gap, and the round steel cannot be easily moved out of the placement gap, thus improving the relative stability of the hoisting unit and the suspension beam. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the lifting device for installing the steel reinforcement cage of the cap beam, as shown in the embodiments of this application.

[0018] Figure 2This is a schematic diagram of the cross-sectional structure of the suspension beam at the adjustment slot in the embodiment of this application, in which the round steel is located outside the adjustment slot.

[0019] Explanation of reference numerals in the attached drawings: 1. Suspension beam; 11. Adjustment slot; 12. Positioning serration; 13. Placement gap; 14. Limiting slot; 15. Stopping hole; 2. Lifting unit; 21. Round steel; 211. Mounting hole; 212. Limiting ring; 22. Connecting sling; 221. Lifting rope; 222. Padlock; 223. Safety block; 3. Anti-reverse block; 31. Fixing pin; 32. Automatic spring. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0021] This application discloses a lifting device for installing the reinforcing steel cage of a cap beam, such as... Figure 1 As shown, it includes a suspension beam 1 and multiple lifting unit components 2. The multiple lifting unit components 2 are all connected to the lower side of the suspension beam 1. The upper side of the suspension beam 1 will be connected to the lifting equipment. The lifting unit components 2 are the connecting parts between the suspension beam 1 and the steel reinforcement skeleton of the cap beam.

[0022] like Figure 1 As shown, the suspension beam 1 has multiple adjusting slots 11 arranged in an array along the length direction of the suspension beam 1, with each adjusting slot 11 having the same length direction as the suspension beam 1. The number of adjusting slots 11 is the same as the number of hoisting unit components 2, and they correspond one-to-one. In this embodiment, the number of hoisting units and adjusting slots 11 is four. The hoisting unit component 2 includes interconnected connecting slings 22 and mating bodies. Multiple mating structures are provided on the slot walls of the adjusting slots 11. The mating structures are used to fix the mating bodies relative to the adjusting slots 11 when the connecting slings 22 are suspending objects. The connecting slings 22 are used to suspend the reinforcing steel skeleton of the cap beam.

[0023] like Figure 1 and 2 As shown, the mating body is a round steel bar 21, and the connecting sling 22 includes a suspension rope 221 and a padlock 222. The padlock 222 is fixedly connected to the middle of the suspension rope 221. Mounting holes 211 are provided on the side walls of both ends of the round steel bar 21, with the length direction of the mounting holes 211 being radial. Each end of the suspension rope 221 passes through a mounting hole 211 and is fixedly connected to a safety block 223. The width of the safety block 223 is greater than the diameter of the mounting hole 211. When the padlock 222 suspends a heavy object, the safety block 223 is located on the side of the round steel bar 21 away from the padlock 222.

[0024] like Figure 1 and 2As shown, the mating structure consists of positioning saw teeth 12, which are fixedly connected to the lower side of the adjusting groove 11 near the connecting cable 22. Several positioning saw teeth 12 are arranged in an array along the length of the adjusting groove 11, forming a placement gap 13 between adjacent positioning saw teeth 12. A round steel bar 21 can be placed within one of these gaps 13, with its length perpendicular to the length of the adjusting groove 11. When the round steel bar 21 is within the gap 13, its left and right sides contact and abut against two adjacent positioning saw teeth 12, preventing it from easily moving along the length of the adjusting groove 11. To prevent the round steel 21 from moving along its length during operation, a limiting ring 212 is coaxially fixedly connected to the middle of the round steel 21. The limiting ring 212 is coaxially sleeved on the outside of the round steel 21 and welded to it. A limiting groove 14 is provided on the positioning saw teeth 12 for the limiting ring 212 to be inserted. After the limiting ring 212 is inserted into the limiting groove 14, it forms a blocking limit on the axial movement of the round steel 21, thereby improving the working stability of the round steel 21.

[0025] like Figure 1 and 2 As shown, within the adjusting groove 11, the height of the space above the positioning saw teeth 12 is greater than the diameter of the round steel 21, facilitating the adjustment and movement of the round steel 21 between different placement gaps 13. Simultaneously, a stop block 3 is mounted on the suspension beam 1 and moves within the adjusting groove 11. The length of the stop block 3 along its sliding direction is equal to the sum of the widths of the two placement gaps 13 and the two positioning teeth. When the stop block 3 is above a certain positioning saw tooth 12, the gap between them is less than the diameter of the round steel 21, meaning that the round steel 21 below the stop block 3 cannot easily dislodge from its placement gap 13. The suspension stop block 3 is equipped with a fixing element for temporarily fixing the stop block 3 relative to the suspension beam 1. The fixing element is a fixing pin 31, which is slidably connected to the stop block 3. The sliding direction is perpendicular to the length direction of the adjusting groove 11. An automatic spring 32 connects the stop block 3 and the fixing pin 31, applying tension to the fixing pin 31. Multiple stop holes 15 are provided on the suspension beam 1. The multiple stop holes 15 are arranged along the sliding direction of the anti-reverse block 3. The distance between two adjacent stop holes is also equal to the sum of the widths of the two placement gaps 13 and the two positioning stops. When the fixing pin 31 is aligned with the stop hole 15, the fixing pin 31 is inserted into the stop hole 15 under the pulling force of the automatic spring 32. At this time, the anti-reverse block 3 cannot move, so as to stably limit the round steel 21 below it.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bent cap reinforcement cage installation hoist, comprising a suspension beam (1) and a plurality of hoisting unit elements (2), the plurality of hoisting unit elements (2) are all connected with the suspension beam (1), characterized in that: The suspension beam (1) is provided with multiple adjusting slots (11), the length direction of the adjusting slots (11) is consistent with the length direction of the suspension beam (1), the hoisting unit (2) includes connecting slings (22) and mating bodies connected to each other, and multiple mating structures are provided on the slot wall of the adjusting slots (11), the mating structures are used to fix the mating bodies relative to the adjusting slots (11) when the connecting slings (22) suspend objects.

2. The bent cap reinforcement cage installation hoist according to claim 1, characterized in that: The mating structure is a positioning sawtooth (12), which is fixedly connected to the groove wall of the adjusting groove (11) on the side near the connecting cable (22). Multiple positioning sawtooths (12) are arranged in an array along the length direction of the adjusting groove (11). The mating body is a round steel (21), and a placement gap (13) is formed between two adjacent positioning sawtooths (12) for placing the round steel (21).

3. The bent cap reinforcement cage installation hoist according to claim 2, characterized in that: An anti-reverse block (3) is mounted on the suspension beam (1) and moves within the adjustment groove (11). The length of the anti-reverse block (3) along its own sliding direction is greater than the width of a single placement gap (13). The gap distance between the anti-reverse block (3) and the tooth tip of the positioning saw tooth (12) is less than the diameter of the round steel (21).

4. The bent cap reinforcement cage installation hoist of claim 3, wherein: The anti-reverse block (3) and the suspension beam (1) are slidably connected, and the sliding direction is parallel to the length direction of the adjusting groove (11). The suspension beam (1) or the anti-reverse block (3) is provided with a fixing member for temporarily fixing the anti-reverse block (3) relative to the suspension beam (1).

5. The bent cap reinforcement cage installation hoist of claim 4, wherein: The fixing component is a fixing pin (31), which is slidably connected to the anti-reverse block (3). The sliding direction is perpendicular to the length direction of the adjusting groove (11). The suspension beam (1) is provided with multiple stop holes (15), which are arranged along the sliding direction of the anti-reverse block (3). An automatic spring (32) is connected between the anti-reverse block (3) and the fixing pin (31). The fixing pin (31) is selectively inserted into one of the stop holes (15).

6. A lifting device for installing the reinforcing steel cage of a cap beam according to any one of claims 2-5, characterized in that: A limiting ring (212) is coaxially fixedly connected to the round steel (21), and a limiting groove (14) is provided on the positioning saw teeth (12) for the limiting ring (212) to be embedded.

7. The bent cap reinforcement cage installation hoist according to any one of claims 2-5, characterized in that: The connecting sling (22) includes a suspension rope (221) and a padlock (222). The suspension rope (221) and the padlock (222) are fixedly connected. The two ends of the round steel (21) are provided with mounting holes (211). The length direction of the mounting hole (211) is the radial direction of the round steel (21). The end of the suspension rope (221) passes through the mounting hole (211) and is fixedly connected with a safety block (223). The width of the safety block (223) is greater than the diameter of the mounting hole (211).

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