Steel box girder mold hanging device

Abstract

The utility model relates to the technical field of steel box girders, and discloses a steel box girder formwork hanging device which comprises a steel box girder box chamber, a beam assembly is installed on the top of the steel box girder box chamber, a vertically-arranged hanging rod is installed at the end, extending to the side face of the steel box girder box chamber, of the beam assembly, and a steel formwork is installed at the bottom end of the hanging rod. The hanging rod is sleeved with a protective sleeve, and the protective sleeve is located between the cross beam assembly and the steel formwork. A plurality of through holes are formed in the side face of the hanging rod, positioning air bags are arranged in the through holes, and an air inlet pipe is arranged at one end of the hanging rod. The hanging rod and concrete are effectively isolated through the protective sleeve, the hanging rod is prevented from being fixed in the concrete in the pouring process, and it is guaranteed that the hanging rod and the steel formwork can be easily disassembled after pouring; the use of the positioning air bag can ensure that the protective sleeve does not move in the pouring process, the phenomenon that the concrete is in contact with the suspender due to the position change of the protective sleeve is avoided, and thus the pouring quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel box beams, in particular to a steel box beam hanging formwork device. Background Art

[0002] During the pouring of steel box girders, steel formwork and hangers often need to be temporarily fixed and removed. Traditional hangers are prone to contact with concrete or become fixed during the pouring process, making subsequent removal difficult. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a steel box beam hanging formwork device.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A steel box girder hanging formwork device includes a steel box girder box chamber, a crossbeam assembly is installed on the top of the steel box girder box chamber, and a vertically arranged suspension rod is installed at one end of the crossbeam assembly extending to the side of the steel box girder box chamber. A steel formwork is installed at the bottom end of the suspension rod, and a protective cover is provided on the outside of the suspension rod, which is located between the crossbeam assembly and the steel formwork; a plurality of through holes are opened on the side of the suspension rod, and a positioning air bag is provided inside the through hole, and an air inlet pipe is provided at one end of the suspension rod for blowing air into the positioning air bag.

[0006] As a further solution of the present invention: a connecting pipe is provided between two adjacent positioning airbags for passing through the interiors of the two adjacent positioning airbags.

[0007] As a further solution of the present invention: the end of the suspension rod extending to the top of the beam assembly is provided with an adjusting nut 2, and the end of the suspension rod extending to the bottom of the steel formwork is provided with an adjusting nut 1.

[0008] As a further solution of the present invention: the side wall of the positioning airbag close to the opening of the through hole is provided with an anti-slip protrusion.

[0009] As a further solution of the present invention: a return spring is provided inside the positioning airbag.

[0010] As a further solution of the present invention: a control valve is provided at one end of the air inlet pipe away from the positioning airbag.

[0011] The beneficial effects of the utility model are:

[0012] 1. Easy to disassemble: The protective cover effectively isolates the hanger from the concrete, preventing the hanger from being fixed in the concrete during pouring, and ensuring that the hanger and steel formwork can be easily disassembled after pouring.

[0013] 2. Improve construction quality: The use of positioning airbags can ensure that the protective cover does not move during the pouring process, avoiding the contact between concrete and the hanger due to changes in the position of the protective cover, thereby improving the pouring quality.

[0014] 3. Easy to operate: The positioning airbag can be rapidly expanded by inflating the air inlet pipe, which can realize the rapid positioning of the protective cover and simplify the construction operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a steel box girder hanging formwork device proposed in the utility model;

[0016] Figure 2 This is a structural cross-sectional view of the hanger rod, through hole, and positioning airbag in a steel box girder hanging formwork device proposed in the utility model;

[0017] Figure 3 The utility model provides a structural cross-sectional view of a positioning airbag in a steel box girder hanging formwork device.

[0018] In the figure: 1-steel box girder chamber, 2-crossbeam assembly, 3-steel formwork, 4-hanging rod, 5-adjusting nut 1, 6-adjusting nut 2, 7-protective cover, 8-positioning airbag, 9-connecting pipe, 10-through hole, 11-control valve, 12-intake pipe, 13-reset spring, 14-anti-slip protrusion. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Reference Figure 1-3 A steel box girder hanging formwork device comprises a steel box girder box chamber 1, a crossbeam assembly 2 is installed on the top of the steel box girder box chamber 1, and a vertically arranged hanger 4 is installed at one end of the crossbeam assembly 2 extending to the side of the steel box girder box chamber 1, and a steel formwork 3 is installed at the bottom end of the hanger 4. The outer part of the hanger 4 is provided with a protective sleeve 7, and the protective sleeve 7 is located between the crossbeam assembly 2 and the steel formwork 3; a plurality of through holes 10 are opened on the side of the hanger 4, and a positioning airbag 8 is provided inside the through hole 10, and an air inlet pipe 12 is provided at one end of the hanger 4 for blowing air into the positioning airbag 8.

[0022] During use, the steel formwork 3 is installed through the hanger 4, and the protective sleeve 7 is arranged on the circumference of the hanger 4. During pouring, the protective sleeve 7 isolates the hanger 4 and the concrete to prevent the hanger 4 from being cast and fixed in the concrete, so that the hanger 4 and the steel formwork 3 can be smoothly removed from the beam assembly 2 after the pouring is completed. Before pouring, air can be blown into the positioning airbag 8 through the air inlet pipe 12, and the positioning airbag 8 is inflated and expanded. The outer wall of the positioning airbag 8 is against the inner wall of the protective sleeve 7, and then the protective sleeve 7 can be positioned to ensure that the protective sleeve 7 will not move during the pouring of concrete and cause the concrete to contact the hanger 4.

[0023] As a preferred embodiment of the present invention, a connecting tube 9 is provided between two adjacent positioning airbags 8 for passing through the interiors of the two adjacent positioning airbags 8 .

[0024] As a preferred embodiment of the present invention, an adjusting nut 2 6 is provided at one end of the hanger 4 extending to the top of the beam assembly 2, and an adjusting nut 1 5 is provided at one end of the hanger 4 extending to the bottom of the steel formwork 3. The coordinated use of adjusting nut 1 and adjusting nut 2 makes the installation and positioning of the steel formwork more precise, and improves the flexibility and stability of the entire device in controlling the height and position of the formwork during the pouring process.

[0025] As a preferred embodiment of the present invention, the side wall of the positioning airbag 8 close to the opening of the through hole 10 is provided with an anti-slip protrusion 14. The side wall of the positioning airbag 8 close to the opening of the through hole 10 is provided with an anti-slip protrusion 14, and its function is to enhance the stability of the fixation. The anti-slip protrusion 14 increases the friction between the positioning airbag 8 and the side wall of the through hole 10. After the airbag 8 is inflated, these protrusions 14 are tightly attached to the inner wall of the through hole 10, effectively preventing the airbag 8 from being displaced due to external force or vibration after inflation, ensuring that the airbag 8 is stably fixed in the desired position during the pouring process. The anti-slip protrusion 14 can also prevent the positioning airbag 8 from sliding or shifting due to pressure or vibration during the pouring process, ensuring that the protective cover 7 does not deviate during the pouring process, further avoiding contact between the concrete and the hanger 4, and improving the accuracy of the structure pouring and the construction quality. In addition, the anti-slip protrusion 14 enables the positioning airbag 8 to be more tightly combined with the side wall of the through hole 10 after inflation, thereby improving the positioning effect of the airbag 8 on the protective cover 7, ensuring that the protective cover 7 is in the correct position before and after pouring, and providing convenience for the subsequent disassembly of the hanger 4 and the steel formwork 3.

[0026] As a preferred embodiment of the present invention, a reset spring 13 is provided inside the positioning airbag 8. Its function is that when the air in the positioning airbag 8 is discharged, the reset spring 13 can automatically restore the shape of the airbag 8 and shrink it to its initial state. This design can quickly restore the airbag 8 to its original size after it is inflated and used, avoiding the airbag 8 from being unable to shrink normally due to long-term deformation, and also avoiding the situation where the protective cover 7 is stuck when it is placed. At the same time, the setting of the reset spring 13 ensures that when there is no air in the airbag 8, it will not become irregular in shape due to gravity or other external forces, providing convenience and reliability for the next inflation use. This design improves the service life and reuse efficiency of the positioning airbag 8, and contributes to the efficient operation and maintenance of the overall device.

[0027] As a preferred embodiment of the present invention, a control valve 11 is provided at one end of the air inlet pipe 12 away from the positioning airbag 8, and its function is to precisely control the process of inflating and deflating the positioning airbag 8. The control valve 11 can adjust the air flow entering the positioning airbag 8, thereby precisely controlling the degree of expansion of the airbag 8 to ensure that the airbag 8 can reach an appropriate expansion state when inflated, fit tightly with the inner wall of the protective cover 7, and achieve effective positioning of the protective cover 7. At the same time, the control valve 11 can also discharge the air in the airbag 8 after use, so that the airbag 8 can quickly shrink to its initial state, facilitating the disassembly of the boom 4 and the steel formwork 3 and the reuse of the device. By adjusting the control valve 11, the convenience and accuracy of the inflation and deflation of the positioning airbag 8 can be improved, ensuring the smooth progress of the construction operation.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel box girder hanging formwork device, comprising a steel box girder chamber (1), wherein a crossbeam assembly (2) is installed on the top of the steel box girder chamber (1), characterized in that: The crossbeam assembly (2) is extended to one end of the side of the steel box beam chamber (1) and is provided with a vertically arranged suspension rod (4), the bottom end of the suspension rod (4) is provided with a steel template (3), and the outer sleeve of the suspension rod (4) is provided with a protective sleeve (7), and the protective sleeve (7) is located between the crossbeam assembly (2) and the steel template (3); A plurality of through holes (10) are provided on the side of the suspension rod (4), and a positioning air bag (8) is provided inside the through hole (10). An air inlet pipe (12) is provided at one end of the suspension rod (4) for blowing air into the positioning air bag (8).

2. A steel box girder hanging formwork device according to claim 1, characterized in that: A connecting pipe (9) is provided between two adjacent positioning airbags (8) for passing through the interiors of the two adjacent positioning airbags (8).

3. A steel box girder formwork hanging device according to claim 2, characterized in that: The end of the suspension rod (4) extending to the top of the beam assembly (2) is provided with a second adjusting nut (6), and the end of the suspension rod (4) extending to the bottom of the steel formwork (3) is provided with a first adjusting nut (5).

4. A steel box girder formwork hanging device according to claim 3, characterized in that: The side wall of the positioning airbag (8) close to the opening of the through hole (10) is provided with an anti-slip protrusion (14).

5. A steel box girder formwork hanging device according to claim 4, characterized in that: A return spring (13) is provided inside the positioning airbag (8).

6. A steel box girder formwork hanging device according to claim 1, characterized in that: A control valve (11) is provided at one end of the air inlet pipe (12) away from the positioning airbag (8).

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