CN217756530U - Lifting device for floor without back jacking - Google Patents

Abstract

The utility model provides a overhead hoist that is used for floor to exempt from to return top, the loach carrying platform comprises a supporting bar, the connecting rod, rings, the device is provided with the bracing piece of two parallels, be provided with several connecting rods between two bracing pieces, and the length of bracing piece surpasss and waits to demolish the peripheral primary structure roof beam of floor, make overhead hoist directly put on waiting to demolish the floor, measure the unwrapping wire on the floor, the line of cut and the rhinestone drilling point are puted to the positioning disk, fix the device and floor through wire rope, after the floor cutting, reach the floor and exempt from the effect of returning top, can directly carry out the handling to ground. Successfully reduces the generation of construction waste, solves the problem that corresponding waste is transported to the ground from floors, saves the construction period and resources for building the back-up support frame, effectively improves the construction efficiency of floor slab demolition, reduces the economic cost of investment, and simultaneously ensures the construction safety in the floor slab demolition work.

Description

Lifting device for floor slab without back jacking

Technical Field

The utility model relates to a construction technical field, in particular to a overhead hoist that is used for floor to exempt from to return top.

Background

The building floor slab dismantling technology is generated aiming at floor slab dismantling in building dismantling and reforming construction. The conventional building floor slab dismantling process includes two steps of rolling and cutting floor slab and eliminating floor slab with pneumatic pick. If a static cutting hoisting process is used, a back-jacking support frame needs to be erected in advance in a floor, after the floor slab is squatted by using a disc and static cutting is finished, the floor slab is placed on the back-jacking support frame, and then a truck crane or a tower crane is used for hoisting and transporting, so that the construction period is prolonged, and the economic cost is increased; if the air pick is used for breaking the floor slab, larger noise and raised dust are generated, and concrete fragments fall into the floor to form a large amount of construction waste.

SUMMERY OF THE UTILITY MODEL

The utility model provides a handling device that is used for floor to exempt from to return top to the floor that prior art's floor demolishs the floor that exists remains a large amount of building rubbish, prepares the problem that work is numerous and diverse, economic cost is great before demolising.

One of the concepts of the present disclosure is that the length of the support rod of the lifting device exceeds the original structural beam around the floor to be removed, so that the lifting device can be directly placed on the floor to be removed, and the effect of preventing the floor from being jacked back is realized.

Specifically, this overhead hoist has two parallel and the same bracing pieces of length, and when placing this overhead hoist, two the bracing piece is all placed on waiting to demolish the peripheral primary structure roof beam of floor, makes primary structure roof beam have an ascending holding power to overhead hoist even floor and overhead hoist are fixed back, even cut the floor, the floor can not drop yet, so before cutting the floor, the floor below need not install the support frame in advance, realizes the effect that the floor exempted from to return the top.

Furthermore, holes penetrating through the floor are formed in four corners of the floor, the floor and the lifting device are bound through the holes by using the steel wire rope, so that the floor is lifted to the bottom of a building, and a large amount of building waste is prevented from being left on the floor.

Firstly, carrying out measurement paying-off on a structural slab, and positioning a disc to squat a cutting line and a rhinestone drilling point;

secondly, drilling holes with the diameter of about 10cm at four corners of the slab according to hole positioning, and then cutting two ends of the floor slab by rolling along a measuring line perpendicular to the supporting rod;

secondly, placing the device on the upper surface of the floor slab, and binding the floor slab and the lifting device by using a steel wire rope;

secondly, cutting the remaining two ends of the floor slab by using a crouching along a measuring line parallel to the supporting rod;

and finally, after the four sides of the floor slab are cut, the stress is transferred to the original structural floor slab through the supporting rods, and the lifting device and the floor slab are lifted to the ground by adopting an automobile crane or a tower crane. The floor slab is lifted to the ground.

To sum up, the present disclosure provides a overhead hoist for floor exempts from to return top, including bracing piece, connecting rod, rings, this overhead hoist is provided with the bracing piece of two parallels, just the length of bracing piece surpasss treats demolising the peripheral primary structure roof beam of floor, be provided with two connecting rods between two bracing pieces, make up into the rectangle between bracing piece and the connecting rod, the top surface of bracing piece is provided with four rings.

Further, the bracing piece directly is provided with two connecting rods, and constitutes a rectangle between bracing piece and the connecting rod to make this overhead hoist structure more firm, security when improving the handling.

Furthermore, the top surface of the supporting rod is provided with four lifting rings, and the lifting rings are fixed on the supporting rod through lifting ring nuts, so that the lifting function of the lifting device is realized.

Furthermore, the I-steel that the material of bracing piece and connecting rod all adopted makes the compressive strength of the device itself rise, and the contact point between bracing piece and the connecting rod is whole to be welded, further improves this overhead hoist's compressive strength and stability to improve the security of overhead hoist when the construction.

In some embodiments, the lifting device is placed on the surface of the floor slab, and the central point of the floor slab is matched with the central point of the rectangle formed by the lifting device, so that the device is stressed more uniformly when lifting the floor slab, and the shaking amplitude in the lifting process is reduced, thereby reducing the risk of breakage or floor slab inclination caused by uneven stress of the steel wire ropes in the lifting process.

Furthermore, four holes can be seted up to the floor, and rethread wire rope binds floor and overhead hoist to realize floor and overhead hoist's fixed, when the handling, overhead hoist can give the floor a pulling force.

The utility model provides a overhead hoist that is used for floor to exempt from to return top possesses following effect at least: 1. the floor slab and the lifting device are fixed through a steel wire rope, then the coil is laid and cut, and finally the device is lifted to the ground by using a truck crane or a tower crane, so that the problem that a large amount of construction waste remains on the floor is solved; 2. the length of the supporting rod of the lifting device exceeds that of the original structural beam at the periphery of the floor to be dismantled, after the floor is cut, the device and the floor are stressed on the original structural beam, and the floor cannot fall off, so that the construction process before and after the floor is dismantled is reduced, the economic cost of construction is reduced, and the construction period is shortened.

Drawings

The present disclosure will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and should not be taken as limiting the scope of the present disclosure. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of the present disclosure in its entirety;

fig. 2 is a top view of the present disclosure as a whole.

In the figure: 1. a support bar; 2. a connecting rod; 3. a hoisting ring; 4. a floor slab; 5. a hole; 6. a steel cord.

Detailed Description

The present disclosure will be described in detail below with reference to fig. 1 to 2.

In order to make the objects, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is 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 disclosure and are not intended to limit the disclosure.

As shown in fig. 1-2, the present disclosure provides a lifting device for floor slab non-return top, which comprises support rods, a connecting rod and a lifting ring, and is characterized in that the lifting device is provided with two parallel support rods, so that the whole device is uniformly stressed, the length of the support rods exceeds the length of an original structural beam at the periphery of the floor slab to be dismantled, after the floor slab is cut, the weight of the lifting device and the floor slab is given to the original structural beam, and the lifting device and the floor slab do not fall off, so that the effect of floor slab non-return top is achieved;

be provided with two connecting rods between two bracing pieces, increase overhead hoist's stability, make up into the rectangle between bracing piece and the connecting rod, the top surface of bracing piece is provided with four rings for mobile crane or tower crane are to the handling of the device.

Furthermore, the supporting rods and the connecting rods are made of I-shaped steel, and the supporting rods and the connecting rods are connected in a welded mode, so that the compressive strength and the stability of the lifting device are improved.

Furthermore, the lifting device is placed on the surface of the floor slab, and the supporting rods are pressed on the top end of the original structural beam.

Furthermore, the central point of the floor slab is matched with the central point of the rectangle formed by the lifting device, so that the floor slab is stressed on the lifting device uniformly, and the balance during lifting is kept.

Furthermore, holes penetrating through the floor slab are formed in four corners of the floor slab, the floor slab and the lifting device are fixed through steel wire ropes, and the steel wire ropes penetrate through the holes, so that stress and fixation between the lifting device and the floor slab are achieved.

Specifically, this embodiment provides a overhead hoist that is used for floor to exempt from to return top, its operation process as follows:

s1: measuring and paying off on the structural slab, and positioning a heel cutting line and a rhinestone drilling point by a positioning disc;

s2: drilling holes with the diameter of about 10cm at four corners of the slab according to hole positioning, and then cutting two ends of the floor slab by using a crouching plate along a direction perpendicular to the supporting rod according to a measuring line;

s3: laying the hoisting device on the upper surface of the floor slab, penetrating the floor slab by using a steel wire rope, and binding the hoisting device with the floor slab;

s4: cutting the remaining two ends of the floor slab by using a crouching along a measuring line parallel to the supporting rod;

s5: after the four sides of the floor slab are cut, the supporting rods transmit the stress to the original structure floor slab. Hoisting the hoisting device and the floor slab to the ground by using a truck crane and the like;

s6: and hoisting the hoisting device with the ground separated from the floor slab to the floor slab dismantling surface, recycling the hoisting device, and cutting and hoisting the floor slab again.

The present disclosure has been described in detail above, and the principles and embodiments of the present disclosure have been explained using specific examples, which are provided only to help understand the present disclosure and the core idea. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present disclosure without departing from the principle of the present disclosure, and such improvements and modifications also fall within the scope of the claims of the present disclosure.

Claims (6)

1. A lifting device for preventing a floor from being jacked back comprises supporting rods, connecting rods and lifting rings, and is characterized in that the lifting device is provided with two parallel supporting rods, and the length of each supporting rod exceeds that of an original structural beam at the periphery of the floor to be dismantled;

be provided with two connecting rods between two bracing pieces, make up into the rectangle between bracing piece and the connecting rod, the top surface of bracing piece is provided with four rings.

2. The lifting device for the floor without the back jacking as claimed in claim 1, wherein the support rods and the connecting rods are made of I-shaped steel, and the support rods and the connecting rods are connected by welding.

3. The trolley for floor non-return top as claimed in claim 1, wherein the trolley is placed on the floor surface, and the support bars press against the top of the original structural beams.

4. The overhead hoist of claim 3, wherein the center point of the floor coincides with the center point of the rectangle formed by the overhead hoist.

5. The lifting device for the floor without the back top as claimed in claim 4, wherein holes penetrating the floor are formed at four corners of the floor.

6. The trolley for floor non-return top as claimed in claim 5, wherein the floor and trolley are fixed by wire rope, and the wire rope passes through the hole.

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