Cast-in-place floor bailey beam hoisting device

Abstract

The utility model discloses a cast-in-place floor bailey beam hoisting device which comprises a first winch and a pulley block, the first winch is arranged on a cast-in-place floor, the pulley block is arranged below an overhanging floor and located above a bailey beam, and a steel rope of the first winch is wound on the pulley block and connected with a first lifting hook; the first lifting hook is used for being connected with the top of the bailey beam. According to the technical scheme, the combination of the first winch and the pulley block is used for replacing a tower crane, the pulley block is used for adjusting the pulling force direction, then the first winch can apply pulling force to the bailey beam in the vertical direction, stable hoisting is guaranteed, interference with an overhanging floor is avoided, and meanwhile the hoisting safety is improved.

Description

Technical Field

[0001] This application relates to the field of hoisting technology, and in particular to a hoisting device for cast-in-place floor slab Bailey beams. Background Technology

[0002] When constructing an extended cast-in-place floor slab, a support system is typically built using scaffolding, and then formwork is installed on the support system to facilitate the pouring of the extended cast-in-place floor slab.

[0003] Reference Figure 1 Due to the building's design, there is a recessed area 1 in the middle of the building, resulting in an overhanging floor slab 9 at the top of the recessed area. There are two cast-in-place floor slabs 2 on both sides of the recessed area 1, and a bottom floor slab 3 at the bottom of the recessed area. Since the overhanging floor slab 9 is quite high, using scaffolding for its construction would not only be costly but also take a long time. Therefore, Bailey beams are used for support. However, after the overhanging floor slab 9 is completed, it is easy to cause interference when using a tower crane to lift the Bailey beams. Summary of the Invention

[0004] The purpose of this application is to provide a Bailey beam hoisting device for cast-in-place floor slabs to improve the problem of difficult hoisting in narrow spaces.

[0005] Firstly, this application provides a Bailey beam hoisting device for cast-in-place floor slabs, which adopts the following technical solution:

[0006] A Bailey beam hoisting device for cast-in-place floor slabs includes a first winch and a pulley block. The first winch is located on the cast-in-place floor slab, and the pulley block is located below the extended floor slab and above the Bailey beam. The steel cable of the first winch is wound around the pulley block and connected to a first hook, which is used to connect to the top of the Bailey beam.

[0007] By adopting the above technical solution, a combination of a first winch and a pulley block is used to replace the tower crane. The pulley block is used to adjust the direction of the tension, so that the first winch can apply tension to the Bailey beam in the vertical direction, thereby ensuring stable hoisting, avoiding interference with the extended floor slab, and improving hoisting safety.

[0008] Optionally, a second winch is installed on the cast-in-place floor slab, and the steel cable of the second winch is connected to a second hook, which is used to connect to the side of the Bailey beam.

[0009] The above technical solution involves suspending the Bailey beam in the air using a first winch, and then moving it to a cast-in-place floor slab on one side using a second winch for dismantling. This reduces safety hazards, improves construction efficiency and convenience, and the shorter hoisting distance further enhances construction safety.

[0010] Optionally, the extended floor slab has pre-drilled holes, and a support bracket is installed on the extended floor slab. The support bracket is located above the holes, and the pulley block is connected to the support bracket and extends through the holes to the bottom of the extended floor slab.

[0011] The above technical solution allows for the installation of pulley blocks by pre-drilling holes in the extended floor slab, facilitating their placement beneath the slab and improving operator safety.

[0012] Optionally, a connecting steel plate is pre-embedded at the bottom of the extended floor slab, and the pulley block is installed on the connecting steel plate.

[0013] The above technical solution uses pre-embedded connecting steel plates to install the pulley block, which improves the speed of installation and eliminates the need for subsequent repairs to the extended floor slab.

[0014] Optionally, the pulley block includes a first fixed pulley and a movable pulley. The first fixed pulley is provided with a first bracket, and the movable pulley is provided with a second bracket. The steel cable of the first winch is first connected to the first bracket, then passes under the automatic pulley, and then passes over the first fixed pulley, and finally connects to the first winch.

[0015] The above technical solution reduces the power required for the first winch to lift the Bailey beam by using the cooperation of the first fixed pulley and the movable pulley.

[0016] Optionally, a traction steel cable is connected to the second bracket, a third winch is installed on the cast-in-place floor slab, a second fixed pulley is connected to the support bracket, and the traction steel cable passes over the second fixed pulley and connects to the third winch.

[0017] By adopting the above technical solution, the traction steel cable provides tension to the movable pulley, which, in conjunction with the first winch, enhances the overall lifting capacity while avoiding the possibility of misalignment of the movable pulley.

[0018] Optionally, multiple sets of holes are provided along the arrangement direction of the Bailey beams.

[0019] By adopting the above technical solution, multiple sets of holes facilitate the adjustment of the position of the first winch and pulley block, thereby facilitating the hoisting of Bailey beams at different positions.

[0020] Optionally, the first winch and the second winch are provided in two sets, which are respectively installed on two cast-in-place floor slabs.

[0021] The above technical solution allows for the stacking of two sets of first and second winches, which facilitates improved hoisting stability.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The tower crane is replaced by a combination of a first winch and a pulley block. The pulley block is used to adjust the direction of the tension, so that the first winch can apply tension to the Bailey beam in the vertical direction, thereby ensuring stable hoisting, avoiding interference with the extended floor slab, and improving hoisting safety.

[0024] 2. After suspending the Bailey beam with the first winch, the second winch is used to move it to the cast-in-place floor slab on one side for dismantling. This reduces safety hazards. Also, when the extended floor slab is completed, tower crane hoisting can easily interfere with the extended formwork. However, the use of the first winch and pulley block can avoid interference, improving construction efficiency and convenience. In addition, this method has a shorter hoisting distance, further improving construction safety. Attached Figure Description

[0025] Figure 1 This is a schematic diagram illustrating the concave region in the background art of this invention.

[0026] Figure 2 This is a schematic diagram illustrating the Bailey beam hoisting device for cast-in-place floor slabs in this invention.

[0027] Figure 3 This is a schematic diagram illustrating the structure of the pulley system in this invention.

[0028] In the diagram, 1 is the concave area; 2 is the cast-in-place floor slab; 3 is the bottom floor slab; 5 is the Bailey beam; 8 is the first winch; 82 is the pulley block; 821 is the support bracket; 822 is the first fixed pulley; 823 is the movable pulley; 824 is the first bracket; 825 is the second bracket; 83 is the second winch; and 9 is the extended floor slab. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Example 1

[0032] Firstly, this application discloses a hoisting device for cast-in-place floor slab Bailey beams.

[0033] A Bailey beam hoisting device for cast-in-place floor slabs, referring to Figures 2 to 3 The system includes a first winch 8 and a pulley block 82. The first winch 8 is mounted on the cast-in-place floor slab 2, and the pulley block 82 is located below the extended floor slab 9 and above the Bailey beam 5. The steel cable of the first winch 8 is wound around the pulley block 82 and connected to a first hook, which is used to connect to the top of the Bailey beam 5. The combination of the first winch 8 and the pulley block 82 replaces the tower crane. The pulley block 82 allows for adjustment of the pulling force direction, enabling the first winch 8 to apply vertical tension to the Bailey beam 5, thus ensuring stable hoisting, avoiding interference with the extended floor slab 9, and improving hoisting safety.

[0034] A second winch 83 is installed on the cast-in-place floor slab 2. The steel cable of the second winch 83 is connected to a second hook, which is used to connect to the side of the Bailey beam 5. After the Bailey beam 5 is suspended in the air by the first winch 8, it is moved to the cast-in-place floor slab 2 on one side by the second winch 83 for dismantling. This reduces safety hazards, improves construction efficiency and convenience, and the shorter hoisting distance further enhances construction safety.

[0035] In addition, pre-drilled holes are provided in the extended floor slab 9, and a support bracket 821 is installed on the extended floor slab 9. The support bracket 821 is located above the holes, and the pulley block 82 is connected to the support bracket 821 and extends through the holes to the bottom of the extended floor slab 9. By pre-drilling holes in the extended floor slab 9, it is easy to lower the pulley block 82 to the bottom of the extended floor slab 9, which facilitates the installation of the pulley block 82 and improves the safety of operators.

[0036] Specifically, the pulley block 82 includes a first fixed pulley 822 and a movable pulley 823. A first support 824 is mounted on the first fixed pulley 822, and a second support 825 is mounted on the movable pulley 823. The steel cable of the first winch 8 is first connected to the first support 824, then passes under the movable pulley 823, and then passes over the first fixed pulley 822, finally connecting to the first winch 8. By cooperating with the first fixed pulley 822 and the movable pulley 823, the lifting power required by the first winch 8 is reduced, facilitating the hoisting of the Bailey beam 5.

[0037] Multiple sets of holes are provided along the arrangement direction of the Bailey beam 5. Multiple sets of holes facilitate the adjustment of the position of the first winch 8 and the pulley block 82, thereby facilitating the hoisting of Bailey beams 5 at different positions.

[0038] It should be noted that there are two sets of the first winch 8 and the second winch 83, which are respectively installed on the two cast-in-place floor slabs 2. The two sets of the first winch 8 and the second winch 83 are stacked together to improve the stability of the hoisting.

[0039] Example 2:

[0040] The difference from Embodiment 1 is that a connecting steel plate is pre-embedded at the bottom of the extended floor slab 9, and the pulley block 82 is installed on the connecting steel plate. Installing the pulley block 82 via the pre-embedded connecting steel plate improves the speed of installation and eliminates the need for subsequent repairs to the extended floor slab 9.

[0041] Example 3:

[0042] The difference from Embodiment 1 is that a traction cable is connected to the second support 825, a third winch is installed on the cast-in-place floor slab 2, a second fixed pulley is connected to the support support 821, and the traction cable passes over the second fixed pulley and connects to the third winch. The traction cable provides tension to the movable pulley 823, which, in conjunction with the first winch 8, enhances the overall lifting capacity while preventing the possibility of misalignment of the movable pulley 823.

[0043] Working principle: When dismantling Bailey beam 5, a pulley block 82 is installed below the extended floor slab 9, above Bailey beam 5. A first winch 8 and a second winch 83 are installed on the cast-in-place floor slab 2. Both the first winch 8 and the pulley block 82 have two sets. The steel cable of the first winch 8 passes through the pulley block 82 and connects to Bailey beam 5, and the steel cable of the second winch 83 is connected to Bailey beam 5. A hole is pre-drilled in the extended floor slab 9, and then a support bracket 821 is installed on the extended floor slab 9. The pulley block 82 is fixed by the support bracket 821 and extends below the extended floor slab 9. During operation, the first winch 8 lifts Bailey beam 5, suspending it in the air. Then, the second winch 83 pulls Bailey beam 5, moving it towards the cast-in-place floor slab 2 on the concave area 1 side, and dismantling Bailey beam 5 on the cast-in-place floor slab 2. After the Bailey beam 5 is suspended in the air by the first winch 8, it is moved to the cast-in-place floor slab 2 on one side by the second winch 83 for dismantling. This reduces safety hazards. At the same time, when the extended floor slab 9 is completed, if the tower crane is used for hoisting, it is easy to interfere with the extended formwork. However, the cooperation of the first winch 8 and the pulley block 82 can avoid interference, improve construction efficiency and convenience. In addition, the hoisting distance of this method is shorter, which further improves the safety of construction.

[0044] It should be noted that during the hoisting of Bailey beams 5 at different positions, the first winch 8, the second winch 83, and the pulley block 82 all need to be changed to prevent the Bailey beams 5 from being unstable during hoisting. In this embodiment, four positions are changed, with each position located between two sets of Bailey beams 5.

[0045] Alternatively, another hoisting method is used: a second winch 83 pulls the Bailey beam 5 onto the cast-in-place floor slab 2 on one side, then removes one end of the Bailey beam 5. Then, another second winch 83 pulls the Bailey beam 5 onto the opposite cast-in-place floor slab 2 and removes the other end of the Bailey beam 5, making the length of the Bailey beam 5 less than the width of the concave area 1. The remaining Bailey beam 5 is then lowered through the first winch 8 to the bottom floor slab 3 of the concave area 1, where it is disassembled. In this embodiment, the Bailey beam 5 is composed of five segments. One segment is removed from each of the two cast-in-place floor slabs 2, and the three middle segments are lowered to the bottom floor slab 3 via the first winch 8 and pulley block 82.

[0046] First, a portion of each end of Bailey beam 5 is removed to ensure the overall stability of Bailey beam 5. At the same time, the length of Bailey beam 5 is reduced, thereby reducing the possibility of interference or collision with other floor slabs when the middle part of Bailey beam 5 is lowered. In addition, the middle part of Bailey beam 5 is lowered onto the bottom floor slab 3, making use of the originally empty bottom floor slab 3, reducing the pressure on the space used on the cast-in-place floor slab 2, relieving the transportation pressure on the unloading platform, and thus improving construction efficiency.

[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A Bailey beam hoisting device for cast-in-place floor slabs, characterized in that, Includes a first winch (8) and a pulley block (82). The first winch (8) is located on the cast-in-place floor slab (2), and the pulley block (82) is located below the extended floor slab (9) and above the Bailey beam (5). The steel cable of the first winch (8) is wound around the pulley block (82) and connected to a first hook, which is used to connect to the top of the Bailey beam (5).

2. The Bailey beam (5) hoisting device for cast-in-place floor slabs (2) according to claim 1, characterized in that: A second winch (83) is installed on the cast-in-place floor slab (2). The steel cable of the second winch (83) is connected to a second hook, which is used to connect to the side of the Bailey beam (5).

3. The Bailey beam (5) hoisting device for cast-in-place floor slabs (2) according to claim 1, characterized in that: The extended floor slab (9) has pre-drilled holes, and a support bracket (821) is installed on the extended floor slab (9). The support bracket (821) is located above the holes, and the pulley block (82) is connected to the support bracket (821) and extends through the holes to the bottom of the extended floor slab (9).

4. The Bailey beam (5) hoisting device for cast-in-place floor slabs (2) according to claim 1, characterized in that: The bottom of the extended floor slab (9) is pre-embedded with a connecting steel plate, and the pulley block (82) is installed on the connecting steel plate.

5. The Bailey beam (5) hoisting device for cast-in-place floor slabs (2) according to claim 3, characterized in that: The pulley block (82) includes a first fixed pulley (822) and a movable pulley (823). The first fixed pulley (822) is provided with a first bracket (824), and the movable pulley (823) is provided with a second bracket (825). The steel cable of the first winch (8) is first connected to the first bracket (824), then passes under the automatic pulley (823), and then passes over the first fixed pulley (822) before finally connecting to the first winch (8).

6. The Bailey beam (5) hoisting device for cast-in-place floor slabs (2) according to claim 5, characterized in that: The second bracket (825) is connected to a traction steel cable, the cast-in-place floor slab (2) is equipped with a third winch, the support bracket (821) is connected to a second fixed pulley, and the traction steel cable passes over the second fixed pulley and is connected to the third winch.

7. The Bailey beam (5) hoisting device for cast-in-place floor slabs (2) according to claim 3, characterized in that: The holes are provided in multiple directions along the Bailey beam (5).

8. The Bailey beam (5) hoisting device for cast-in-place floor slabs (2) according to claim 2, characterized in that: The first winch (8) and the second winch (83) are provided in two sets, which are respectively installed on two cast-in-place floor slabs (2).

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