CN218912190U - Pedal for dismantling combined overhanging I-steel - Google Patents

Abstract

The utility model discloses a pedal for dismantling combined overhanging I-steel, which comprises the following components: a support pedal; the two supporting bottom beams are respectively fixed on two sides of the bottom end surface of the supporting pedal; the top ends of the vertical rods on the two first L-shaped frames are fixedly connected with the positions, close to one ends of the two supporting bottom beams, of the two supporting bottom beams respectively; the two ends of the first U-shaped limiting bolt respectively penetrate through the supporting pedal and are correspondingly inserted into the transverse rods of the two first L-shaped frames, the first U-shaped limiting bolt and the first L-shaped frames enclose a first limiting space, and the first I-steel is arranged in the first limiting space; the top ends of the vertical rods on the two second L-shaped frames are fixedly connected with the two supporting bottom beams respectively; the two ends of the second U-shaped limiting bolt respectively penetrate through the supporting pedal and are correspondingly inserted with the transverse rods of the two second L-shaped frames, the second U-shaped limiting bolt and the second L-shaped frames enclose a second limiting space, and the second I-steel is arranged in the second limiting space. The pedal is high in use safety and convenient to use.

Description

A pedal for dismantling combined cantilevered I-beams

technical field

The utility model relates to the technical field of building appliances, in particular to a pedal used for dismantling a combined cantilevered I-beam.

Background technique

In the process of building construction, due to the necessity of peripheral structure protection, cantilevered scaffolding is often used in the construction process of residential and office buildings for structural safety protection. At the same time, cantilevered scaffolding usually uses I-beam as its supporting point for erection.

Nowadays, there are more and more super high-rise buildings. The cantilevered scaffolding of such buildings is often divided into several cantilevered sections, and the first cantilevered floor is mostly located on the transfer floor or the first standard floor. At the same time, to meet the needs of residential sales and display, the cantilevered scaffolding will be dismantled on the middle floor according to actual needs, and the top floor will be re-cantilevered to meet the construction requirements.

During the dismantling of these cantilevered I-beams, there was a potential safety hazard in dismantling because there was no operating platform at the bottom.

In order to remove the I-beams of the first overhanging layer and the middle overhanging layer, the following methods are often used in the prior art:

When removing the I-beam on the first cantilevered layer, remove the I-beam after erecting the outer frame from the ground to the bottom of the overhanging layer; , cantilevered out of the structure as an operating platform.

Both of the above-mentioned operation methods have the problems of large engineering quantity, large consumption of manpower and material resources, and long construction period.

Therefore, in order to solve the above-mentioned problems, prior art such as CN207332281U, the name is a kind of mobile operating platform for the removal of cantilevered I-beams, including a support system and at least four I-beam fastening systems matched with the support system ;The support system includes 2 main beams, at least 3 secondary beams, and 1 piece of steel netting; the 2 main beams are distributed in parallel, and the secondary beams are also distributed in parallel. One end of the main girder is fixed with a steel net, and the other end of the main girder is equipped with an I-shaped steel fastening system; the I-shaped steel fastening system includes one "L"-shaped round steel, one "7" "Type round steel, "L" type round steel and "7" type round butt joint to form a square frame, one end of the fixed nut is welded with "7" type round steel, the center passes through the "L" type round steel, fasten the nut Used to fix the operating platform and I-beam. The operating platform reduces the manpower and material costs and safety risks of the cantilevered I-beam demolition, and shortens the demolition period.

But the support system of above-mentioned mobile operation platform is surrounded by main girder and secondary girder and forms a rectangular support frame, and only a side of the support system is provided with a steel bar net used as a pedal, and the other side is a hollow structure, so that workers The standing area is small, the walking space is small, and there is a danger of stepping on the air; and when the above-mentioned I-beam fastening system fastens the I-beam, it is necessary to use a wrench to turn the fastening nut so as to fasten the operation platform to the I-beam. The operation is cumbersome; in addition, the mobile operating platform is not equipped with a handle for manual support, which is not convenient for workers to dismantle the operation, and there are certain safety hazards.

Therefore, how to provide a pedal with high safety in use and convenient use for dismantling the combined cantilevered I-beam is an urgent problem to be solved by those skilled in the art.

Utility model content

In view of this, the utility model provides a pedal for dismantling combined cantilevered I-beams with high safety and convenience.

In order to achieve the above object, the utility model adopts the following technical solutions:

A pedal for dismantling a combined cantilevered I-beam, comprising:

support pedal;

Supporting bottom beams, the supporting bottom beams are two arranged in parallel and spaced apart, and are respectively fixed on both sides of the bottom end surface of the supporting pedal;

There are two first L-shaped frames, and the top ends of the vertical rods of the two first L-shaped frames are fixedly connected to the positions of the two supporting bottom beams near one end thereof;

The first U-shaped limit pin, the two ends of the first U-shaped limit pin respectively pass through the support pedal and correspondingly plugged into the transverse bars of the two first L-shaped frames, the first U-shaped The limit bolt and the first L-shaped frame form a first limit space, and the first I-beam is placed in the first limit space;

There are two second L-shaped frames, and the top ends of the vertical bars of the two second L-shaped frames are fixedly connected to the two supporting bottom beams respectively, and the second L-shaped frames The frame is spaced apart from the first L-shaped frame;

The second U-shaped limit pin, the two ends of the second U-shaped limit pin respectively pass through the support pedal and correspondingly plugged into the transverse bars of the two second L-shaped frames, the second U-shaped The limit bolt and the second L-shaped frame form a second limit space, and the second I-beam is placed in the second limit space.

It can be seen from the above-mentioned technical solutions that, compared with the prior art, the utility model discloses a pedal for dismantling the combined cantilevered I-beam. When in use, the pedal is placed on the I-beam. The transverse bar of the first L-shaped frame and the transverse bar of the second L-shaped frame are located at the bottom end of the corresponding I-beam, and then the worker stands on the support pedal, and the first U-shaped limit latch is sequentially passed through the support pedal, the second The transverse bar of the first L-shaped frame and the second U-shaped limit bolt respectively pass through the support pedal and the transverse bar of the second L-shaped frame in sequence, so that the corresponding I-beams are respectively clamped in the first limit space and the second limit space. In the space, realize the fixing between the support pedal and the I-beam, prevent the support pedal from turning over, and then, the workers will remove the I-beam to be removed on the pedal. After removing one I-beam, pull out the first U-shaped limit pin and the second U-shaped limit pin, move the support pedal backward, and after fixing it with the I-beam at the back, the other I-beam can be fixed. The beam is dismantled. By analogy, the dismantling operation of multiple I-beams can be completed. Therefore, because the supporting pedal is the entire panel in the pedal, the area for workers to step on is large, which improves the space for workers to walk and move, and has high safety, and adopts the first U-shaped limit pin and the second U-shaped limit pin The connection structure plugged with the support pedal, the first L-shaped frame, and the second L-shaped frame is not only simple in structure but also easy to operate and convenient to use. It can quickly realize the fixation between the support pedal and the I-beam, which can avoid the existing Using a wrench to rotate the fastening nut several times to realize the fixing of the pedal and the I-beam causes the problem of cumbersome operation.

Further, a handrail is installed on the top surface of the support pedal.

The beneficial effect of adopting the above-mentioned technical solution is that the worker can hold the handrail when performing the demolition operation, thereby improving the safety of the worker's operation.

Further, the armrest is installed on the top surface of the support pedal at a position away from the second U-shaped limit pin and a position close to the second U-shaped limit pin.

The beneficial effect of adopting the above technical solution is that a plurality of handrails are provided, so that workers can support the handrails at different positions according to different working positions.

Further, the armrest is detachably connected to the support pedal.

Further, the handrail is a U-shaped steel bar with threaded sections at both ends, and the two threaded sections pass through the supporting pedal and are fixedly connected to the supporting pedal through lock nuts.

The beneficial effect of adopting the above technical solution is that it facilitates the disassembly and assembly of the armrest, so that after the armrest is removed, there are no other parts on the upper surface of the support pedal, which facilitates the stacking of the two support pedals.

Further, the top surface of the support pedal is a rough anti-skid surface.

The beneficial effect of adopting the above technical solution is to improve the anti-slip effect of the support pedal and improve the safety of use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

The accompanying drawing of Fig. 1 is a schematic diagram of the structure of a pedal used for dismantling the combined cantilevered I-beam provided by the utility model when it is in use.

Figure 2 is a schematic diagram of the front structure of a pedal used for dismantling the combined cantilevered I-beam provided by the utility model.

Fig. 3 is a top view structural diagram of the first embodiment of the pedal used for dismantling the combined cantilevered I-beam provided by the utility model.

Figure 4 is a top view structural diagram of a second embodiment of a pedal used for dismantling a combined cantilevered I-beam provided by the utility model.

Figure 5 is a schematic diagram of the connection structure of the handrail and the support pedal.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Fig. 1-Fig. 5, the embodiment of the utility model discloses a pedal for dismantling a combined cantilevered I-beam, including:

The support pedal 1, the top surface of the support pedal 1 is a rough anti-skid surface 101 (the rough anti-skid surface is specifically provided with anti-skid lines), and the support pedal 1 can be an aluminum alloy plate;

Supporting bottom beam 2, two supporting bottom beams 2 are arranged in parallel at intervals, and are respectively welded or bolted to both sides of the bottom end surface of supporting pedal 1, and supporting bottom beam 2 can be an aluminum alloy square tube;

The first L-shaped frame 3, there are two first L-shaped frames 3, and the top ends of the vertical rods of the two first L-shaped frames 3 are welded or bolted to the positions of the two supporting bottom beams 2 near one end thereof, and the first L-shaped frame 3 is connected by bolts. An L-shaped frame 3 can use 4# aluminum alloy angle steel;

The first U-shaped limit pin 4 (strength grade M10), the two ends of the first U-shaped limit pin 4 respectively pass through the support pedal 1 and the transverse rods of the two first L-shaped frames 3 for corresponding insertion, the first U Type limit bolt 4 and the first L-shaped frame 3 enclose the first limit space 5, and the first I-beam 6 is placed in the first limit space 5;

The second L-shaped frame 7, the second L-shaped frame 7 is two, and the vertical bar tops of the two second L-shaped frames 7 are respectively welded or bolted to the two supporting bottom beams 2, the second L-shaped frame 7 Arranged at intervals with the first L-shaped frame 3, the second L-shaped frame 7 can use 4# aluminum alloy angle steel;

The second U-shaped limit pin 8 (strength grade M10), the two ends of the second U-shaped limit pin 8 respectively pass through the support pedal 1 and the transverse rods of the two second L-shaped frames 7 for corresponding insertion, the second U The type limit bolt 8 and the second L-shaped frame 7 form a second limit space 9, and the second I-beam 10 is placed in the second limit space 9.

In order to facilitate workers' operations, a handrail 11 is installed on the top surface of the support pedal 1 .

Handrails 11 are installed on the top surface of the support pedal 1 at a position away from the second U-shaped limit pin 8 and on a side close to the second U-shaped limit pin 8 .

Wherein, in this scheme, there can be two support pedals 1, and the handrail 11 on the position of the second U-shaped limit latch 8 on one of the support pedals is located at one side of the pedal, which is far away from the second U-shaped limit latch on the pedal. The handrail 11 at the position of the position latch 8 is on one side of the pedal (see Figure 3); the handrail 11 at the position of the second U-shaped limit latch 8 on the other support pedal is located at the other side of the pedal, which is far away from the pedal. The handrail 11 of the position of the second U-shaped limit latch 8 is on the other side of the pedal (referring to FIG. 4 ). The two pedals can be used at the same time like this, which is convenient for two workers to stand on the pedals to jointly complete the removal operation of the I-beam. Among them, two pedals are used in the dismantling process. As the I-beams are removed one by one, the two pedals retreat alternately to provide outdoor work space.

In order to facilitate the disassembly and assembly of the handrail, the handrail 11 is detachably connected to the support pedal 1. Specifically, the handrail 11 is a U-shaped steel bar with threaded sections 111 at both ends, and the two threaded sections 111 pass through the support pedal 1 through lock nuts. 12 is fixedly connected with support pedal 1.

When in use, the pedal is placed on the I-beam, at this time, the horizontal bar of the first L-shaped frame and the horizontal bar of the second L-shaped frame need to be located at the bottom end of the corresponding I-beam, and then the worker stands on the support pedal , the first U-shaped limit pins are sequentially penetrated through the support pedal and the transverse bar of the first L-shaped frame, and the second U-shaped limit pins are respectively sequentially penetrated through the support pedal and the transverse bar of the second L-shaped frame, so that the corresponding working The beams are respectively clamped in the first space and the second space, so as to realize the fixing between the support pedal and the I-beam, and prevent the support pedal from turning over. The beam is dismantled. After removing one I-beam, pull out the first U-shaped limit pin and the second U-shaped limit pin, move the support pedal backward, and after fixing it with the I-beam at the back, the other I-beam can be fixed. The beam is dismantled. By analogy, the dismantling operation of multiple I-beams can be completed. Therefore, because the supporting pedal is the entire panel in the pedal, the area for workers to step on is large, which improves the space for workers to walk and move, and has high safety, and adopts the first U-shaped limit pin and the second U-shaped limit pin The connection structure plugged with the support pedal, the first L-shaped frame, and the second L-shaped frame is not only simple in structure but also easy to operate and convenient to use. It can quickly realize the fixation between the support pedal and the I-beam, which can avoid the existing Using a wrench to rotate the fastening nut several times to realize the fixing of the pedal and the I-beam causes the problem of cumbersome operation.

Among them, when dismantling, the I-beam to be dismantled is bound firmly with a steel wire rope. For the heavier male angle I-beam, it can be directly fixed on the tower crane lifting rope; After binding, fix the wire rope indoors, and pull the I-beam into the room after the removal is completed. This prevents the dismantled I-beam from falling from a high altitude to cause danger.

There are two situations for the removal of I-beam bolts. One is that the nuts are indoors, and the bolt heads and washers are outdoors. The removal only needs to remove the nuts indoors, and then the I-beam can be hoisted to the ground or pulled indoors. Another situation is that the nuts are outdoors, or pre-embedded bolts are used. The demolition work needs to be done outdoors and the workers are doing the demolition work on the treads in this application. When it is inconvenient to disassemble the nut outdoors, the lock nut can be removed first, and then the fastening nut can be clamped with a sheet wrench, and then the bolt can be unscrewed from the indoor.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. The utility model provides a demolish footboard that combination formula I-steel of encorbelmenting was used which characterized in that includes:

a support pedal (1);

the support bottom beams (2) are two parallel and spaced, and are respectively fixed on two sides of the bottom end surface of the support pedal (1);

the two first L-shaped frames (3) are arranged, and the top ends of the vertical rods of the two first L-shaped frames (3) are fixedly connected with the positions, close to one ends of the two supporting bottom beams (2), of the two supporting bottom beams respectively;

the two ends of the first U-shaped limiting bolt (4) respectively penetrate through the supporting pedal (1) and are correspondingly inserted with transverse rods of the two first L-shaped frames (3), the first U-shaped limiting bolt (4) and the first L-shaped frames (3) are enclosed to form a first limiting space (5), and the first I-steel (6) is arranged in the first limiting space (5);

the two second L-shaped frames (7) are arranged, the top ends of the vertical rods of the two second L-shaped frames (7) are fixedly connected with the two supporting bottom beams (2) respectively, and the second L-shaped frames (7) and the first L-shaped frames (3) are arranged at intervals;

the two ends of the second U-shaped limiting bolt (8) penetrate through the supporting pedal (1) and the two transverse rods of the second L-shaped frames (7) respectively to be correspondingly inserted, the second U-shaped limiting bolt (8) and the second L-shaped frames (7) enclose to form a second limiting space (9), and the second I-steel (10) is arranged in the second limiting space (9).

2. The pedal for removing the combined overhanging i-steel according to claim 1, characterized in that the top end surface of the supporting pedal (1) is provided with a handrail (11).

3. The pedal for removing the combined cantilever i-steel according to claim 2, wherein the handrail (11) is arranged at a position far away from the second U-shaped limiting bolt (8) and at a position close to one side of the second U-shaped limiting bolt (8) on the top end surface of the supporting pedal (1).

4. Pedal for removing modular overhanging i-steel according to claim 2, characterized in that said armrest (11) is removably connected to said support pedal (1).

5. The pedal for removing the combined overhanging i-steel according to claim 4, wherein the handrail (11) is a U-shaped steel bar, two ends of the handrail are provided with thread sections (111), and two thread sections (111) penetrate through the supporting pedal (1) and are fixedly connected with the supporting pedal (1) through a locking nut (12).

6. Pedal for removing modular overhanging i-steel according to any of claims 1-5, characterized in that the top surface of the supporting pedal (1) is a rough anti-slip surface (101).

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