CN209210183U - fixed system - Google Patents

Abstract

The utility model discloses a fixing system, which comprises a support frame (1), which is used for installing a limit assembly (2) and is connected with a lifting device (3); the limit assembly (2) is installed on the support frame ( 1), used to pass through the floor (4) to be removed, and limit the horizontal and vertical positions of the floor (4) to be removed. The purpose of the utility model is to provide a fixing system and a floor slab dismantling and lifting method to solve the problems that the steel wire rope is easy to wear during the floor slab removal process, it is difficult to control the smoothness of lifting and transportation, and the use cost is high.

Description

fixed system

technical field

The utility model belongs to the technical field of engineering demolition, in particular to a fixing system.

Background technique

At present, large and super-large cities are gradually entering the development stage of urban renewal. More and more buildings have actual needs for structural transformation, and the demolition of the original structural floor has become an important part of structural transformation. Normally, chain saws and blade saws are mainly used for mechanical demolition of structural floors. During the cutting and lifting process, the reliable fixing of the floor slab is very important. The traditional method mainly uses steel wire rope sets to fix it. The basic process is: 1) Open four holes in the corners of the floor in advance; Use the steel wire rope to tighten the force, so as to ensure that the floor is kept horizontal and does not overturn during the cutting and lifting process.

However, affected by site conditions, building type, lifting environment and other factors, the traditional floor fixing measures show some disadvantages and shortcomings in the process of use:

(1) The workload of dismantling is heavy, and the steel wire rope is prone to wear and tear, which has great potential safety hazards;

(2) After the concrete is pre-drilled, the concrete at the edge of the hole in contact with the steel wire rope is relatively loose, and it is easy to peel off under the extrusion force of the steel wire rope. Sudden increase, increasing the safety risk of lifting;

(3) For large-space, long-span, high-clearance buildings (such as grand theaters, gymnasiums, exhibition halls, etc.), in order to remove the horizontal structure on the top of such buildings, it is necessary to set up scaffolding under the floor as an operating platform. The installation and dismantling workload is heavy, which is not conducive to saving the construction period and cost; if the dismantling operation is only performed on the upper part of the floor slab, it is difficult for the steel wire rope to be wound out from the bottom of the floor slab, and the floor slab cannot be firmly fixed.

Utility model content

Therefore, the purpose of the utility model is to provide a fixing system, which solves the problems that the wire rope is easy to wear during the demolition process of the floor, difficult to control the smoothness of lifting, and high cost of use.

In order to solve the above problems, the utility model provides a fixing system, including:

The support frame 1 is used to install the limit assembly 2 and connect with the lifting device 3;

The limit component 2 is installed on the support frame 1, passes through the floor 4 to be removed, and performs horizontal and vertical limit on the floor 4 to be removed.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

Preferably, there are at least three limiting components 2, and the at least three limiting components 2 are arranged in a triangle in the horizontal direction to support the floor 4 to be removed in a balanced manner.

Preferably, at least one suspension ring 104 is provided on the support frame 1 .

Preferably, the support frame 1 adopts a steel structure; the limit assembly 2 adopts a steel structure.

Preferably, the support frame 1 includes:

at least one first lateral support 101;

at least one second lateral support 102;

At least one first transverse support 101 and at least one second transverse support 102 are fixedly installed through first connecting bolts 103 to form a truss structure.

Preferably, the limit assembly 2 is installed on the second lateral support 102 and/or the first lateral support 101 through the second connecting bolt 201 .

Preferably, the support frame 1 includes two second lateral supports 102 and a first lateral support 101, and the two second lateral supports 102 are respectively installed at both ends of the first lateral support 101, and the first lateral support 101 and the two second lateral supports The two transverse supports 102 form an I-shaped truss; each second transverse support 102 is provided with two suspension rings 104 respectively.

Preferably, there are four limiting components 2 , and one limiting component 2 is installed at both ends of each second lateral support 102 .

The fixing system provided by the utility model has at least the following beneficial effects:

The fixing system provided by the embodiment of the utility model replaces the steel wire rope to fix the floor, overcomes the problems that the steel wire rope is easy to wear, the steel wire rope has poor stability on the floor, and the balance of the floor is difficult to control during the lifting process. Horizontal and vertical limit fixed, easy installation, high reliability, easy to use with lifting equipment.

The fixing system provided by the utility model is easy to assemble, and the size of the fixing system can be adjusted at any time according to the size of different floor slabs to be removed.

Description of drawings

Fig. 1 is the structural representation of the fixing system of the utility model embodiment;

Fig. 2 is the structural schematic diagram of the support frame of the fixing system of the utility model embodiment;

Fig. 3 is a schematic structural view of the fixing system limit assembly of the embodiment of the present invention;

Fig. 4 is a schematic diagram of the connection between the fixing system and the lifting device of the embodiment of the present invention;

Fig. 5 is a schematic diagram of the state where the crosspiece is attached to the bottom of the floor to be removed in the floor removal lifting method according to the embodiment of the present invention;

Fig. 6 is a schematic diagram of the installation state of the scaffold pipe of the floor slab demolition lifting method according to the embodiment of the present invention;

Fig. 7 is a schematic diagram of the hoisting state of the floor demolition hoisting method according to the embodiment of the present invention.

The reference signs are indicated as:

1. Support frame; 2. Limiting component; 3. Lifting equipment; 4. Floor to be removed; 101. First lateral support; 102. Second lateral support; 103. First connecting bolt; 104. Lifting ring; 201. Second lateral support Two connecting bolts; 202, vertical block; 203, cross block; 204, scaffold pipe hole; 205, scaffold pipe; 301, steel wire rope; 401, floor hole.

Detailed ways

As shown in Figures 1 to 4, according to Embodiment 1 of the present invention, the present invention provides a fixing system, including:

The support frame 1 is used to install the limit assembly 2 and connect with the lifting device 3;

The limit component 2 is installed on the support frame 1, and is used to pass through the floor 4 to be removed, and to limit the floor 4 to be removed horizontally and vertically.

The fixing system of the utility model is mainly used for demolition of floor slabs in engineering demolition.

In the traditional method, before the floor slab is demolished, it is necessary to use steel wire ropes to wrap the floor slab, but the steel wire rope is easy to wear and tear. The sudden increase brings potential safety hazards; and because of its soft nature, the floor slabs being hoisted often turn around or even overturn, and construction safety cannot be effectively guaranteed.

The fixing system of the present utility model adopts a penetrating method, through which the limit assembly 2 passes through the floor 4 to be removed, and the limit assembly 2 can provide horizontal limit for the floor 4 to be removed, and can also provide vertical support for the floor 4 to be removed. The floor is fixed by multi-point horizontal and vertical limit, the fixing effect is good, and the safety factor is high.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

In this implementation, at least three limiting components 2 are used, and based on the principle of determining a plane at three points, at least three limiting components 2 are arranged in a triangle in the horizontal direction, and the support frame 1 passes through at least three limiting components. The bit assembly 2 is connected to the floor 4 to be removed, and supports the floor 4 to be removed in a balanced manner, so as to ensure the stability of fixing or lifting of the floor 4 to be removed.

Since the fixing system of this embodiment needs to be hoisted by means of the lifting device 3 , at least one lifting ring 104 must be provided on the supporting frame 1 .

Considering that the fixing system of the present utility model is used at the engineering construction site, and the working environment is relatively harsh, the fixing system also needs to bear a large force. The support frame 1 and the limit assembly 2 are preferably made of steel structure, which can be high-strength steel or ultra-high-strength steel. The steel structure is strong and durable, and can ensure sufficient strength to avoid safety accidents due to structural damage during lifting.

The support frame 1, the limit assembly 2, and the suspension ring 104 in the embodiment of the present invention can also be made of other high-strength materials, such as high-strength alloy materials, polymer materials, etc., not limited to steel materials.

In this embodiment, the supporting frame 1 is used as a supporting element and a force receiving element, and preferably adopts a truss structure, which may be a horizontal truss or a three-dimensional truss. The truss structure is more stable, and the overall stress strength is large, which can ensure that the limit component 2 has sufficient installation position and working space.

The support frame 1 includes at least one first transverse support 101;

at least one second lateral support 102;

At least one first transverse support 101 and at least one second transverse support 102 are fixedly installed to form a truss structure. Preferably, the first connecting bolts 103 are used for bolt connection, which is convenient for assembly and disassembly. It can also be installed by welding, riveting, plugging, etc.

When a second transverse support 102 and a first transverse support 101 are used, they are preferably fixedly installed as a cross-shaped truss, which can ensure the force balance of the truss. Also can be fixedly installed into other shapes according to the shape of the floor slab 4 to be removed, such as T-shape or L-shape.

The selection of the truss structure of the support frame 1 can be reasonably selected according to the shape and center of gravity of the floor 4 to be removed. For example, a plane truss is used for a flat floor, but a three-dimensional truss can be used for a thicker plane to increase the structural strength; For floors with uneven or irregular surfaces, the support frame 1 can adopt a heterogeneous structure to balance the stress on the installation points of the limiting components 2 .

Preferably in this embodiment, the support frame 1 includes two second lateral supports 102 and a first lateral support 101, and the two second lateral supports 102 are respectively installed at both ends of the first lateral support 101, and the first lateral support 101 It forms an I-shaped truss with the two second transverse supports 102; two suspension rings 104 are respectively provided on the two second transverse supports 102.

The I-shaped support frame 1 has a simple structure, is fixed and connected by bolts, is easy to disassemble, has good overall balance, and is helpful for the installation arrangement of the limit assembly 2 and the lifting ring 104, and can ensure better plane stability for lifting sex.

The limit assembly 2 can be installed on the second lateral support 102 and/or the first lateral support 101 through the second connecting bolt 201 .

In this embodiment, there are preferably four limiting components 2, and one limiting component 2 is installed at both ends of each second lateral support 102, that is, the four limiting components 2 are symmetrically and evenly distributed in pairs On the I-shaped truss, the center of the quadrilateral formed by the four limit components 2 corresponds to the center of the support frame 1. The centers of gravity of the two coincide vertically. Four lifting rings 104 are installed on the support frame 1, which coincide with the center of gravity of the two. A better stability can be ensured in the process.

The limit assembly 2 adopted in this embodiment includes a vertical stop 202 passing through the floor 4 to be removed;

The crosspiece 203 can rotate freely in the vertical plane. In a free state, under the action of its own gravity, the end of the crosspiece 203 with a larger distance from the hinge point rotates downward, and the end with a shorter distance from the hinge point of the crosspiece 203 Turn one end up.

The cross block 203 and the vertical block 202 are connected by rotation.

The two ends of the crosspiece 203 have different weights, and one end of the crosspiece 203 is heavier and one end is lighter. In an unbalanced state, under the action of its own gravity, the heavier end of the crosspiece 203 will pull the crosspiece 203 to rotate and swing in the corresponding direction. The crosspiece 203 passes through the floor 4 to be removed along with the limit assembly 2 and gets rid of the blocking of the floor hole 401, and can rotate and swing by itself without the help of external force.

In this embodiment, the crosspiece 203 of the limit assembly 2 can be turned over automatically, and the operator can complete the fixing of the limit assembly 2 on the upper surface of the floor 4 to be removed, and does not need to be fixed under the floor 4 to be removed. Any operation overcomes the problem of high clearance, large-span and other structural buildings that need to build scaffolding and other working platforms below to complete the winding down of steel wire ropes, making the demolition and construction of such structural buildings more convenient, efficient, and safe, and helps Control engineering demolition costs.

In the fixing system of this embodiment, the support frame 1 of the planar truss structure is equipped with four limit components 2, and the four limit components 2 are distributed in a regular quadrilateral, which can realize four-point stable fixing of the floor 4 to be removed. The support frame 1 passes through four The lifting ring 104 is connected to the lifting device 3 . Under the pull of the lifting device 3, the pulling force of the lifting device 3 is evenly applied to the support frame 1 through the four lifting rings 104, and then vertically transmitted to the floor 4 to be removed through the four limit components 2.

Preferably in this embodiment, a number of scaffold tube holes 204 are processed in the middle of the vertical block 202, and the scaffold tube holes 204 are arranged along the length direction of the vertical block 202. The limit assembly 2 also includes a scaffold tube 205, and the scaffold tube 205 passes through the foot Hand tube hole 204, and form upper and lower stop limit with crosspiece 203. The scaffolding pipe 205 can be inserted into the scaffolding pipe hole 204 of a suitable height according to the thickness of the floor 4 to be removed, and ensure that it is as close as possible to the upper surface of the floor 4 to be removed.

Through the upper and lower stops formed by the scaffolding tube 205 and the crosspiece 203, the limit assembly 2 can completely fix the floor slab 4 to be removed in the vertical direction. The role of the scaffolding tube 205 is also to prevent the limiting assembly 2 from accidentally falling from the floor hole 401 to the floor 4 to be removed, and to fix the limiting assembly 2 and the floor 4 to be removed.

The fixing system of the utility model can be used alone or in combination, and is not only suitable for removing and fixing structural floors, but also suitable for other building structures that can be drilled through.

As shown in Fig. 4 to Fig. 7, according to the embodiment of the present invention, the present invention provides a method for removing and transporting the floor using the fixing system of the present invention, including:

1. A floor opening 401 is provided on the floor 4 to be removed. The size of the floor opening 401 is slightly larger than the section of the limit assembly; there must be multiple floor openings 401, and the limit assembly provides balanced support for the floor 4 to be removed through multiple floor openings 401 . The position of the floor opening 401 should be determined according to the size and shape of the floor 4 to be demolished. In this embodiment, four floor openings 401 are symmetrically provided at four corners of the rectangular floor 4 to be demolished with uniform thickness.

If the thickness of the floor 4 to be removed is not uniform or the shape is irregular, the position of the center of gravity of the floor 4 to be removed must be considered comprehensively, and the openings 401 of the floor slab should be reasonably distributed to satisfy multi-point balanced support.

2. Assemble the fixing system shown in Figure 1; first install the support frame 1, the support frame 1 is preferably an I-shaped truss, install the four limit components 2 on the support frame 1, and the planar layout of the four limit components 2 The plane layout of the four floor openings 401 is consistent, and the support frame 1 passes through the wire rope 301 through the four lifting rings 104 and is connected with the lifting device 3 .

When assembling the fixing system of this embodiment, if the upper surface of the floor 4 to be removed is irregular, resulting in the opening 401 of the floor not being on the same plane, the support frame 1 can be designed to fit the irregular shape of the upper surface of the floor 4 to be removed, It is also possible to install space-limiting components 2 with different heights in the vertical direction to ensure that the floor slab 4 to be removed maintains the posture before it is removed during fixing and lifting, so as to ensure the stability during fixing and lifting.

3. The lifting device 3 lifts the fixing system, and the construction personnel hold the limit component 2 above the floor 4 to be removed, so that the limit component 2 in the fixing system is aligned with the floor opening 401, and at the same time ensure that the vertical stop 202 and the cross stop 203 are all in upright state, and the heavier end of crosspiece 203 is upward.

Under the traction of the lifting device 3, the fixing system is slowly lowered, and the limit assembly 2 is inserted into the floor opening 401; after the crosspiece 203 passes through the floor opening 401, the crosspiece 203 is automatically turned over under the action of its own weight, and the crosspiece 203 Before stopping the swing, the hoisting device 3 quickly pulls the support frame 1 upwards so that the crosspiece 203 is in a horizontal state close to the bottom of the floor 4 to be removed, and the scaffolding pipe 205 is passed through the scaffolding pipe of the vertical shield 202 exposed on the upper part of the floor 4 to be removed In the hole 204, the vertical relative freedom between the limit assembly 2 and the floor 4 to be removed is completely locked, and the fixing of the floor 4 to be removed is completed.

4. With the traction assistance of the lifting device 3, the floor 4 to be removed is cut, and after it is completely separated, the floor 4 to be removed is lifted by the lifting device 3.

In summary, the fixing system and floor removal and lifting method provided by the utility model overcome technical problems such as difficulty in construction of floor fixing and cutting in engineering demolition, and steel wire rope fixing in lifting, low reliability, time-consuming and laborious, and high cost, and can also be applied to Safe demolition of structural floors with high headroom and long spans. The structure of the fixing system itself is strong and durable, can be produced in a fixed form, and can be reused, with very high practical value.

Those skilled in the art can easily understand that, on the premise of no conflict, the above-mentioned advantageous modes can be freely combined and superimposed.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection. The above are only preferred embodiments of the present utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can also be made without departing from the technical principles of the present utility model. It should also be regarded as the protection scope of the present utility model.

Claims (7)

1. a kind of fixed system characterized by comprising

Support frame (1) is connect for installing limit assembly (2), and with lifting appliance (3)；

Limit assembly (2) is mounted on support frame as described above (1), is used for across floor to be removed (4), to the floor to be removed (4) it is horizontally and vertically limited；

Support frame as described above (1) includes:

The first cross-brace (101) of at least one；

The second cross-brace (102) of at least one；

It is described at least one the first cross-brace (101) and it is described at least one the second cross-brace (102) be fixedly mounted At truss structure.

2. fixed system according to claim 1, which is characterized in that the limit assembly (2) be at least three, it is described extremely Few three limit assembly (2) arrangements triangular in shape in the horizontal direction, with balanced support floor to be removed (4).

3. fixed system according to claim 1, which is characterized in that support frame as described above (1) is equipped with hanging at least one Ring (104).

4. fixed system according to claim 1, which is characterized in that support frame as described above (1), limit assembly (2) are all made of Steel construction.

5. fixed system according to claim 1 to 4, which is characterized in that the limit assembly (2) is mounted on described In the second cross-brace (102) of at least one and/or at least one first cross-brace (101).

6. fixed system according to claim 1 to 4, which is characterized in that support frame as described above (1) includes two second Cross-brace (102), first cross-brace (101), described two second cross-braces (102) are separately mounted to described The both ends of one cross-brace (101), first cross-brace (101) and described two second cross-braces (102) constitute work Font truss；Two hanging rings (104) are additionally provided on each second cross-brace (102) respectively.

7. fixed system according to claim 6, which is characterized in that the limit assembly (2) is four, and each second is horizontal A limit assembly (2) is mounted on to the both ends of support (102).