Lifting device

Abstract

The utility model relates to a hoisting device, which belongs to the technical field of hoisting equipment and comprises a hoisting frame, a hoisting component and a hoisting angle adjusting component, a hoisting beam is rotatably mounted on the hoisting frame, the hoisting component is mounted at one end of the hoisting beam to form a hoisting end, and the other end of the hoisting beam is connected with the hoisting angle adjusting component to form an adjusting end; the hoisting assembly comprises a first power piece and a hoisting rope; the first power piece is installed on the hoisting frame, the power end of the first power piece is connected with the hoisting rope, and the hoisting rope is used for fixing an object to be hoisted. The hoisting angle adjusting assembly is provided with a second power piece, the second power piece is installed on the hoisting frame, and the power end of the second power piece is connected with the adjusting end of the hoisting beam so as to adjust the angle of the hoisting beam rotating around the rotating connecting point. According to the lifting device, the lifting beam and the lifting frame are adopted to form a lever structure, the overall structure height is low, the lifting height can be adjusted by adjusting the adjusting end of the lifting beam, and the working requirement of construction space limitation between floors is met.

Description

Technical Field

[0001] The utility model relates to a hoisting device, belonging to the technical field of hoisting equipment. Background Art

[0002] The frame-core tube structure is a structural form composed of a core tube and a peripheral frame. Due to its good mechanical properties and the flexibility of the internal space, it has become the mainstream structural form adopted in international super high-rise buildings at present and is widely used in super high-rise buildings.

[0003] In the construction of super high-rise buildings with a frame-core tube structure, the principle of constructing the core tube first is often adopted. The installation of the outer frame steel structure lags behind the core tube structure by 6 to 8 floors, and the construction of the outer frame floor slab lags behind the installation of the steel structure by 6 to 8 floors. The construction of the core tube structure usually adopts internal and external climbing forms to construct the vertical shear wall tube structure first. The climbing formwork is suspended on the inner and outer walls of the core tube. The floor slab in front of the core tube elevator is reserved for synchronous construction with the later outer frame floor. Generally, due to the cancellation of the elevator shaft in the low and middle zones at the top of the core tube, the overall structural stiffness of the core tube decreases. In addition, the height of the top structure generally reaches two or three hundred meters, and the wind load at the top increases sharply. In order to ensure the safety of the core tube structure construction, it is necessary to temporarily reinforce several floors where the lower floor slab of the core tube is not constructed. By adding temporary steel supports between the core tube arms and the formal steel columns and steel beams to replace the unconstructed floor slabs, the wind load received by the core tube is transmitted to the outer frame steel structure to form an overall force, ensuring structural safety. The temporarily added steel supports generally use large-sized channel steel, and the weight of a single root is between 800 kg and 1000 kg. How to quickly and safely remove the temporary steel supports after the construction of the later floor slab is a major problem.

[0004] Since the removal of the temporary steel is located between the existing floors, when using the existing hoisting device for auxiliary removal, there is a problem of construction space limitation, resulting in the inability of the existing hoisting device to enter, or during the hoisting process, the hoisting arm of the hoisting device cannot be constructed normally due to height limitations. Therefore, a hoisting device is needed to solve the problem that in the prior art, when using the existing hoisting device for the temporary steel removal construction between floors, due to the construction space limitation of the floors, the hoisting device cannot perform effective hoisting. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a hoisting device to solve the problems raised in the above background art.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A lifting device includes a lifting frame, a lifting assembly, and a lifting angle adjustment assembly. A lifting beam is rotatably installed on the lifting frame. One end of the lifting beam is installed with a lifting assembly to form a lifting end, and the other end is connected to the lifting angle adjustment assembly to form an adjustment end; The lifting assembly includes a first power member and a lifting rope; The first power member is installed on the lifting frame, and its power end is connected to the lifting rope, and the lifting rope is used to fix the object to be lifted; The lifting angle adjustment assembly is provided with a second power member. The second power member is installed on the lifting frame, and its power end is connected to the adjustment end of the lifting beam to adjust the angle of the lifting beam rotating around the rotation connection point.

[0007] Specifically, a lifting vertical beam is provided on the lifting frame. The lifting beam is rotatably installed on the top of the lifting vertical beam, and the lifting beam is hinged to the lifting vertical beam.

[0008] Specifically, the first power member includes a winch and a fixed pulley; The fixed pulley is fixedly installed at the lifting end; One end of the lifting rope is connected to the power end of the winch, and the other end passes through the fixed pulley at the lifting end to form a fixed end for the object to be lifted; The winch is fixedly installed on the lifting frame.

[0009] Specifically, the number of fixed pulleys is several. The several fixed pulleys are fixedly installed on the lifting frame at intervals, and one of the fixed pulleys is fixedly installed at the lifting end of the lifting beam; The end of the lifting rope away from the winch passes through the fixed pulleys on the lifting frame and at the lifting end in sequence.

[0010] Specifically, the second power member includes a chain block and two adjustment rings; The two adjustment rings are respectively fixedly installed at the adjustment end of the lifting beam and the lifting frame; The chain block is installed on the adjustment ring at the adjustment end of the lifting beam, and the hook at its power end is hooked to the adjustment ring on the lifting frame.

[0011] Specifically, the lifting frame is provided with a base, and moving wheels are installed at the four corners of the bottom of the base.

[0012] Specifically, the moving wheels are lockable universal wheels.

[0013] Specifically, a moving handrail frame is fixedly installed on the lifting frame.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. In this application, a lifting beam is hingedly installed on the lifting frame. One end of the lifting beam is equipped with a first power component and a lifting rope to form a lifting end, and the other end is equipped with a second power component to control the rotation of the lifting beam relative to the lifting frame, forming an adjustment end. When the lifting end hoists the steel section, the lifting height can be adjusted through the adjustment end to carry out the demolition construction of the steel section. The lifting device of this application adopts a lever structure composed of a lifting beam and a lifting frame, with a low overall structure height. By adjusting the adjustment end, the lifting height can be adjusted to meet the working requirements of the construction space limitation between floors, and it can effectively solve the problem that small internal steel beams cannot be demolished by existing lifting equipment after the construction of super-high-rise floor slabs.

[0016] 2. On the basis of the above, the first power component of this application includes a winch and a fixed pulley. The winch drives the lifting rope to hoist around the fixed pulley. On the one hand, it meets the normal hoisting of heavy objects, and on the other hand, the winch itself occupies a small space, and it will not cause the entire lifting device to occupy too much space.

[0017] 3. On the basis of the above, the second power component of this application uses a chain block. Utilizing the characteristics of the chain block to reduce speed and increase force, the operator only needs to provide a relatively small force to control the lifting device. And the chain block is convenient for fine operation, convenient for controlling the lifting angle, and has high operation safety. At the same time, the chain block has an automatic locking function, which can ensure that during the lifting process, the lifting beam stops at the set position, facilitating the demolition of the steel section, and can further increase the construction safety.

[0018] 4. On the basis of the above, the lifting frame of this application is provided with a base, and universal wheels are configured at the bottom of the base, and a movable handrail frame is equipped on the lifting frame. To achieve the movement of the lifting device during the demolition of the steel section and improve the construction efficiency. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the lifting device of this embodiment. Detailed Embodiment

[0020] In order to make the purpose and advantages of the present utility model clearer, the following specifically describes the present utility model in combination with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0021] Please refer to Figure 1, this embodiment discloses a lifting device, which includes a lifting frame 1, a lifting assembly, and a lifting angle adjustment assembly. A lifting beam 4 is rotatably installed on the lifting frame. One end of the lifting beam 4 is equipped with a lifting assembly to form a lifting end, and the other end is connected to the lifting angle adjustment assembly to form an adjustment end; the lifting assembly includes a first power member and a lifting rope 9; the first power member is installed on the lifting frame, and its power end is connected to the lifting rope, and the lifting rope is used to fix the object to be lifted; the lifting angle adjustment assembly is provided with a second power member, and the second power member is installed on the lifting frame, and its power end is connected to the adjustment end of the lifting beam to adjust the angle of the lifting beam rotating around the rotation connection point.

[0022] In this embodiment, a lifting vertical beam 3 is provided on the lifting frame. The lifting beam 4 is rotatably installed on the top of the lifting vertical beam 3, and the lifting beam 4 is hinged to the lifting vertical beam 3. The lifting frame is provided with a base 1, and movable wheels are installed at the four corners of the bottom of the base. And the movable wheels in this embodiment are lockable universal wheels. To facilitate the overall movement of the lifting device, a movable handrail frame 10 is fixedly installed on the lifting frame in this embodiment.

[0023] Furthermore, the first power member in this embodiment includes a winch 2 and a fixed pulley; the fixed pulley is fixedly installed at the lifting end; one end of the lifting rope is connected to the power end of the winch, and the other end passes through the fixed pulley at the lifting end; the winch is fixedly installed on the lifting frame. And the number of fixed pulleys is three. Two of the fixed pulleys are installed at intervals along the radial direction on the lifting vertical beam to form a fixed pulley 6 and a fixed pulley 7, and the other fixed pulley is fixedly installed at the lifting end of the lifting beam to form a fixed pulley 5. The lifting rope in this embodiment is a steel wire rope. One end of it is connected to the winch 2, and the other end passes through the three fixed pulleys in sequence along the lifting vertical beam towards the lifting beam direction, and finally fixes the object to be lifted at the end.

[0024] In addition, the second power member in this embodiment includes a chain block 8 and two adjustment rings; the two adjustment rings are respectively fixedly installed at the adjustment end of the lifting beam and the lifting frame; the chain block is installed on the adjustment ring at the adjustment end of the lifting beam, and the hook at its power end is hooked to the adjustment ring of the lifting frame.

[0025] Working principle: When the lifting device in this embodiment is in use: In the first step, before the steel I-beam is demolished, the operator moves the lifting device to the set position through the movable handrail frame on the lifting frame. After reaching the position, first lock the universal wheels at the bottom. Then adjust the angle of the lifting end of the lifting beam through the chain block. Move the lifting end to the upper side of the steel beam, fix the steel beam with a steel wire rope, and adjust the winch to tighten and fix the lifting steel wire rope. This step can effectively prevent the risk of the steel beam falling during the demolition process.

[0026] Step 2: After the steel beam is fixed, the demolition operation of the steel beam can be started. During the demolition process, the angle of the lifting beam is adjusted by a chain block to maintain the stability of the steel beam during demolition. In this process, the lifting device of this embodiment is applicable to a limited operation space and can effectively solve the problem of demolishing small steel beams.

[0027] Step 3: After the two ends of the steel beam are demolished, the lifting beam is adjusted by a chain block to rotate around the rotation connection point, so that the lifting beam gradually tends to be horizontal. After the lifting beam reaches an appropriate angle, the steel beam is slowly lowered to the ground by controlling the winch. In this process, the lifting beam is adjusted by a chain block and the steel wire rope is controlled by the winch to make the profiled steel beam land smoothly, effectively avoiding the risk of instability during the landing process of the steel beam.

[0028] The above has described in detail the implementation manners of the present invention in conjunction with the embodiments. However, the present invention is not limited to the above implementation manners. For those of ordinary skill in the art in this technical field, after learning the content recorded in the present invention, without departing from the principle of the present invention, several equivalent transformations and substitutions can still be made, and these equivalent transformations and substitutions should also be regarded as belonging to the protection scope of the present invention.

Claims

1. A lifting device, comprising a lifting frame, a lifting assembly and a lifting angle adjustment assembly, characterized in that: A lifting beam is rotatably mounted on the lifting frame, a lifting assembly is mounted on one end of the lifting beam to constitute a lifting end, and the other end is connected to a lifting angle adjustment assembly to constitute an adjustment end; the lifting assembly comprises a first power member and a lifting rope; the first power member is mounted on the lifting frame, and a power end thereof is connected to the lifting rope, and the lifting rope is used to fix the object to be lifted; the lifting angle adjustment assembly is provided with a second power member, the second power member is mounted on the lifting frame, and a power end thereof is connected to the adjustment end of the lifting beam to adjust the angle of rotation of the lifting beam around the rotating connection point.

2. A lifting device according to claim 1, characterized in that: The lifting frame is provided with a lifting vertical beam, the lifting beam is rotatably installed on the top of the lifting vertical beam, and the lifting beam is hinged with the lifting vertical beam.

3. A lifting device according to claim 1, characterized in that: The first power component includes a winch and a fixed pulley; the fixed pulley is fixedly installed at the lifting end; one end of the lifting rope is connected to the power end of the winch, and the other end passes through the fixed pulley at the lifting end; the winch is fixedly installed on the lifting frame.

4. A lifting device according to claim 3, characterized in that: The number of the fixed pulleys is several, and the several fixed pulleys are fixedly installed on the lifting frame at intervals, and one of the fixed pulleys is fixedly installed on the lifting end of the lifting beam; the end of the lifting rope away from the winch passes through the lifting frame and the fixed pulleys at the lifting end in sequence.

5. A lifting device according to claim 1, characterized in that: The second power component includes a hand chain hoist and two adjustment pull rings; the two adjustment pull rings are fixedly installed on the adjustment end of the lifting beam and the lifting frame respectively; the hand chain hoist is installed on the adjustment pull ring at the adjustment end of the lifting beam, and the hook at its power end is hooked with the adjustment pull ring of the lifting frame.

6. A lifting device according to claim 1, characterized in that: The lifting frame is provided with a base, and moving wheels are installed at the four bottom corners of the base.

7. A lifting device according to claim 6, characterized in that: The movable wheel is a lockable universal wheel.

8. A lifting device according to claim 1, characterized in that: A movable handrail frame is fixedly installed on the lifting frame.

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