Suspended formwork sliding type demoulding device suitable for variable cross-section construction

Abstract

The invention discloses a suspended formwork sliding type demolding device suitable for variable cross-section construction, and belongs to the field of building construction equipment. The device comprises a sliding rail, an upper jacking roller assembly, a lower lifting roller assembly, a sliding beam and a lifting device. The sliding rail is fixed to the upper steel frame system, and the sliding beams are arranged below the sliding rail in parallel at intervals. A hoisting connecting plate for arranging a lifting device is fixed at one end of the sliding beam; and the lifting device is used for lifting the hanging template below. And an upper jacking roller assembly and a lower lifting roller assembly are arranged between the sliding rail and the sliding beam. The upper top roller assembly, the lower lifting roller assembly and the sliding beam are fixedly connected, and the upper top roller assembly, the lower lifting roller assembly and the sliding rail are in sliding connection; the upper jacking roller assembly and the lower lifting roller assembly drive the sliding beam to move front and back in the length direction of the sliding rail. The device can flexibly cope with the change of the thickness of the structural shear wall on the basis of guaranteeing the basic mold withdrawing and closing functions, additional mounting or dismounting is not needed, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of building construction equipment, and in particular relates to a sliding type demoulding device for a suspended formwork suitable for variable-section construction. Background Art

[0002] During the construction of the vertical structure of the core tube of a super high-rise building, the formwork is a temporary frame used to support the concrete structure. If the traditional formwork construction method is used, these formworks need to be removed after the poured concrete is completely solidified. The formwork removal process involves multiple disassembly and assembly operations, which is cumbersome and time-consuming and labor-intensive to transport between floors, significantly reducing construction efficiency.

[0003] The demoulding device is a device used to remove the formwork during the construction process. At present, many construction units use building machines equipped with sliding demoulding devices to realize the suspension and demoulding of the formwork. However, the cantilever length of such devices is usually limited to a demoulding space of 600mm to 700mm. In view of the fact that the upper structure of the vertical structure of the super-high-rise core tube often involves the reduction of the cross-sectional size, the conventional demoulding device is difficult to meet the needs of variable cross-sectional construction. Therefore, after each structural wall reduction, the installation position of the sliding demoulding device can only be manually adjusted, and the longer demoulding beam can be continuously replaced. This not only increases the difficulty of operation and the workload, but also increases the construction risk, and cannot give full play to the convenience and integrity of the overall jacking steel platform. Therefore, it is urgent to develop a new type of demoulding device that can not only meet the demoulding space requirements of the lower structure, but also solve the problem of variable cross-sectional construction of the upper structure, so as to improve the overall construction efficiency and operation safety. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and provide a sliding demoulding device for a suspended formwork suitable for variable-section construction.

[0005] The specific technical solutions adopted by the present invention are as follows:

[0006] The present invention provides a sliding type demoulding device for a suspended formwork suitable for variable cross-section construction, the sliding type demoulding device comprising a slide rail, an upper roller assembly, a lower hanging roller assembly, a sliding beam and a lifting device;

[0007] The slide rail is fixed to the upper steel frame system through a connecting piece; the sliding beam is arranged in parallel and spaced apart below the slide rail; a first connection hole group for fixing the upper top roller assembly and a second connection hole group for fixing the lower hanging roller assembly are arranged at intervals on the upper flange of the sliding beam; a lifting connecting plate for setting a lifting device is fixed at one end of the sliding beam; the lifting device is used to lift the hanging template below;

[0008] An upper roller assembly and a lower hanging roller assembly are arranged between the slide rail and the sliding beam, wherein the lower hanging roller assembly is arranged at one end close to the lifting connecting plate, and the upper roller assembly is arranged at one end away from the lifting connecting plate; the upper roller assembly, the lower hanging roller assembly and the sliding beam are fixedly connected, and the upper roller assembly, the lower hanging roller assembly and the slide rail form a sliding connection; the upper roller assembly and the lower hanging roller assembly drive the sliding beam to move forward and backward along the length direction of the slide rail, which is suitable for demolding of suspended formwork in variable-section construction.

[0009] Preferably, the upper roller assembly comprises an upper roller bottom plate, an upper roller side plate and an upper roller; a connection hole group matching the first connection hole group is provided on the upper roller bottom plate; upper roller side plates are respectively and vertically fixed at both ends of the upper surface of the upper roller bottom plate; an upper roller is arranged between the two upper roller side plates; an anti-detachment top plate is also arranged above the upper roller to prevent the upper roller from detaching from the slide rail, and the distance between the upper roller and the anti-detachment top plate is greater than the thickness of the lower flange of the slide rail;

[0010] The lower hanging roller assembly includes a lower hanging roller bottom plate, a lower hanging roller side plate and a lower roller; a connection hole group matching the second connection hole group is provided on the lower hanging roller bottom plate; the lower hanging roller side plates are vertically fixed at both ends of the upper surface of the lower hanging roller bottom plate; a lower roller is arranged between the two lower hanging roller side plates; a limiting middle plate is also arranged below the lower roller, and the distance between the lower roller and the limiting middle plate is greater than the thickness of the lower flange of the slide rail.

[0011] Furthermore, a hole for setting a connecting shaft is provided on the upper roller side plate, one end of the connecting shaft is fixedly connected to the hole on the upper roller side plate by plug welding, and the other end of the connecting shaft is rotationally connected to the upper roller.

[0012] Furthermore, a hole for setting a connecting shaft is opened on the side plate of the lower hanging roller, one end of the connecting shaft is fixedly connected to the hole on the side plate of the lower hanging roller by plug welding, and the other end of the connecting shaft is rotatably connected to the lower roller.

[0013] Preferably, the slide rail and the sliding beam are both made of H-shaped steel or I-shaped steel.

[0014] Preferably, the end of the slide rail close to the lower hanging roller assembly is provided with a limit plate to prevent the lower hanging roller assembly from leaving the slide rail; the limit plate is fixed between the upper flange and the lower flange of the slide rail by welding.

[0015] Preferably, a stop bolt is provided at one end of the slide rail close to the upper roller assembly to prevent the upper roller assembly from detaching from the slide rail; a stop bolt hole is provided on the lower flange of the slide rail, and the stop bolt is inserted into the stop bolt hole to limit the upper roller assembly.

[0016] Preferably, the lifting device adopts an electric hoist.

[0017] Preferably, the sliding demoulding device is fixed below the steel secondary beam of the steel frame system; both ends of the upper flange of the slide rail are provided with slide rail connecting hole groups, and the slide rail is fixed below the steel secondary beam by passing the connecting piece through the slide rail connecting hole group.

[0018] Furthermore, the connecting parts are bolts and matching nuts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The sliding demoulding device provided by the present invention includes a two-stage telescopic template suspension structure of a slide rail and a sliding beam. On the basis of ensuring the basic demoulding and mold closing functions, the structure has an adaptive adjustment capability and can flexibly respond to changes in the thickness of the structural shear wall. In addition, an upper roller assembly and a lower hanging roller assembly are provided on the slide rail, making the demoulding and mold closing process more convenient and labor-saving, without the need for additional installation or disassembly, and will not block or affect the operation of the main structure (shear wall reinforcement), greatly improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a sliding demoulding device for a hanging template provided in this embodiment;

[0022] Figure 2 A schematic diagram of the installation of the sliding type demoulding device for the hanging template provided in this embodiment;

[0023] Figure 3 This is a schematic diagram of the slide rail in this embodiment;

[0024] Figure 4 Schematic diagram of the sliding beam in this embodiment;

[0025] Figure 5 This is a schematic diagram of the top roller assembly in this embodiment;

[0026] Figure 6 This is a schematic diagram of the lower hanging roller assembly in this embodiment;

[0027] Figure 7 A schematic diagram of the mold closing of the sliding mold-removing device for the hanging template provided in this embodiment;

[0028] Figure 8 A schematic diagram of a mold removal device for a hanging template sliding type mold removal provided in this embodiment;

[0029] Fig. 9 A schematic diagram of the wall shrinking and mold closing of the sliding mold withdrawal device of the hanging template provided in this embodiment;

[0030] In the figure: slide rail 1, slide rail connecting hole group 11, limit plate 12, upper roller assembly 2, upper roller bottom plate 21, upper roller side plate 22, anti-slip top plate 23, upper roller 24, lower hanging roller assembly 3, lower hanging roller bottom plate 31, lower hanging roller side plate 32, limit middle plate 33, lower roller 34, sliding beam 4, first connecting hole group 41, second connecting hole group 42, lifting connecting plate 43, lifting device 5, stop bolt 6, connecting piece 7, steel secondary beam 8. DETAILED DESCRIPTION

[0031] The present invention is further described and illustrated below in conjunction with the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly without conflicting with each other.

[0032] like Figure 1 and Figure 2 As shown, as a preferred embodiment of the present invention, this embodiment provides a sliding demoulding device for a suspended formwork suitable for variable cross-section construction. The sliding demoulding device can be used in the vertical structure construction process of the core tube of a super high-rise building.

[0033] The sliding demoulding device provided by the present invention comprises a slide rail 1, an upper roller assembly 2, a lower hanging roller assembly 3, a sliding beam 4 and a lifting device 5. The slide rail 1 and the sliding beam 4 are both made of H-shaped steel with a material of Q355 and a specification of HN200, and the H-shaped steel comprises an upper flange and a lower flange parallel to each other and a web perpendicular to the upper and lower flanges. It should be noted that the slide rail 1 and the sliding beam 4 can also be made of I-shaped steel.

[0034] Since this embodiment is aimed at the demoulding process in the vertical structure construction of the core tube of a super high-rise building, the sliding demoulding device needs to be fixedly connected to the upper steel frame system. The platform of the general steel frame system includes a steel main beam and a steel secondary beam. The slide rail 1 is fixed under the steel secondary beam 8 of the steel frame system through a connecting member 7.

[0035] like Figure 3As shown, in this embodiment, both ends of the upper flange of the slide rail 1 are provided with a slide rail connection hole group 11 for setting the connection member 7. The connection member 7 can be a bolt and a matching nut, and the slide rail 1 is fixed to the bottom of the steel secondary beam 8 by passing the bolt through the slide rail connection hole group 11. In order to improve the connection stability between the slide rail 1 and the steel secondary beam 8, in this embodiment, each group of slide rail connection hole groups 11 is provided with 4 bolt holes arranged in a square array. Of course, if a larger size of slide rail 1 is used, the number of bolt holes in each group of slide rail connection hole groups 11 can also be increased. In this embodiment, the left and right bolt holes are symmetrically arranged with the axis of the slide rail 1 as the center, the center distance between the left and right bolt holes is 60mm, the center distance between the front and rear bolt holes is 100mm, and the diameter of the bolt holes is 17mm. The present invention does not limit the number of bolt holes, the diameter and the center distance between adjacent bolt holes, and those skilled in the art can make a selection according to the specific working conditions.

[0036] In the sliding type demoulding device provided by the present invention, the sliding beams 4 are arranged in parallel and spaced apart below the slide rails 1. Figure 4 As shown, a first connection hole group 41 for fixing the upper top roller assembly 2 and a second connection hole group 42 for fixing the lower hanging roller assembly 3 are arranged at intervals on the upper flange of the sliding beam 4. A lifting connection plate 43 for setting the lifting device 5 is fixed at one end of the sliding beam 4, and the end of the sliding beam 4 fixed with the lifting connection plate 43 is called the front end, and the end away from the lifting connection plate 43 is called the rear end.

[0037] In this embodiment, the hoisting connection plate 43 includes two 10 mm thick steel plates, on which hoisting circular holes for hanging the lifting device 5 are opened. The two steel plates are respectively welded to the two sides of the front end web of the sliding beam 4. The lifting device 5 is used to hoist the hanging template below. In this embodiment, the lifting device 5 adopts an electric hoist.

[0038] In the sliding demoulding device provided by the present invention, an upper roller assembly 2 and a lower hanging roller assembly 3 are arranged between the slide rail 1 and the sliding beam 4, wherein the lower hanging roller assembly 3 is arranged at an end close to the lifting connecting plate 43, that is, the front end of the sliding beam 4. The upper roller assembly 2 is arranged at an end away from the lifting connecting plate 43. That is, the rear end of the sliding beam 4. The upper roller assembly 2, the lower hanging roller assembly 3 and the sliding beam 4 are fixedly connected, and the upper roller assembly 2, the lower hanging roller assembly 3 and the slide rail 1 form a sliding connection. The upper roller assembly 2 and the lower hanging roller assembly 3 drive the sliding beam 4 to move forward and backward along the length direction of the slide rail 1, which is suitable for demoulding the suspended formwork in variable cross-section construction.

[0039] Specifically, when the front end of the sliding beam 4 is flush with the surface of the hanging formwork below, the distance between the first connection hole group 41 and the rear end determines the maximum distance that the device can be demolded, and the distance between the second connection hole group 42 and the front end determines the maximum shrinkage and mold closing distance of the device. In this embodiment, the distance between the center point of the first connection hole group 41 and the rear end is 765mm, and the distance between the second connection hole group 42 and the front end is 450mm. The present invention does not limit the positions of the first connection hole group 41 and the second connection hole group 42, as well as the number and diameter of the bolt holes therein, and those skilled in the art can make selections according to specific working conditions.

[0040] like Figure 5 As shown, the upper roller assembly 2 provided in this embodiment includes an upper roller bottom plate 21, two upper roller side plates 22, an anti-slip top plate 23 and two upper rollers 24. A connection hole group matching the first connection hole group 41 is provided on the upper roller bottom plate 21. The upper roller side plates 22 are vertically fixed to the upper roller bottom plate 21 at both ends of the upper surface by welding. An upper roller 24 is provided between the two upper roller side plates 22. A hole for setting a connecting shaft is provided on the upper roller side plate 22, and the diameter of the hole in this embodiment is 26 mm. One end of the connecting shaft is fixedly connected to the hole on the upper roller side plate 22 by plug welding, and the other end of the connecting shaft is rotatably connected to the upper roller 24. An anti-slip top plate 23 is also provided above the upper roller 24 to prevent the upper roller 24 from detaching from the slide rail 1, and the anti-slip top plate 23 is vertically fixed between the upper roller side plates 22 on both sides by welding. The distance between the upper roller 24 and the anti-slip top plate 23 is slightly greater than the thickness of the lower flange of the slide rail 1. The front and rear sides of the anti-slip top plate 23 are provided with an upwardly tilted angle to ensure the smoothness of the top sliding process.

[0041] like Figure 6 As shown, the lower hanging roller assembly 3 provided in this embodiment includes a lower hanging roller bottom plate 31, two lower hanging roller side plates 32, a limiting middle plate 33 and two lower rollers 34. A connection hole group matching the second connection hole group 42 is provided on the lower hanging roller bottom plate 31. The lower hanging roller side plates 32 are vertically fixed to the lower hanging roller bottom plate 31 at both ends of the upper surface by welding. A lower roller 34 is arranged between the two lower hanging roller side plates 32. A hole for arranging a connecting shaft is provided on the lower hanging roller side plates 32, and the diameter of the hole in this embodiment is 26mm. One end of the connecting shaft is fixedly connected to the hole on the lower hanging roller side plates 32 by plug welding, and the other end of the connecting shaft is rotatably connected to the lower roller 34. A limiting middle plate 33 is also provided below the lower roller 34, and the limiting middle plate 33 is vertically fixed between the lower hanging roller side plates 32 on both sides by welding. The distance between the lower roller 34 and the limiting middle plate 33 is slightly larger than the thickness of the lower flange of the slide rail 1 .

[0042] When the lifting device 5 is lifting the hanging formwork below, the front end of the sliding beam 4 is subjected to a downward force, and the lower roller 34 in the lower hanging roller assembly 3 is located above the lower flange of the sliding beam 4 and is also subjected to a downward force. At this time, the rear end of the sliding beam 4 is lifted upward, and the upper roller 24 in the upper roller assembly 2 is located below the lower flange of the sliding beam 4 and fits the lower surface of the lower flange.

[0043] In order to prevent the upper roller assembly 2 and the lower hanging roller assembly 3 from being separated from the slide rail 1 during the sliding process, in this embodiment, a limit plate 12 is provided at one end of the slide rail 1 near the lower hanging roller assembly 3 to prevent the lower hanging roller assembly 3 from being separated from the slide rail 1, and the limit plate 12 is fixed between the upper flange and the lower flange of the slide rail 1 by welding. A stop bolt 6 is provided at one end of the slide rail 1 near the upper roller assembly 2 to prevent the upper roller assembly 2 from being separated from the slide rail 1. A stop bolt hole is provided on the lower flange of the slide rail 1, and the stop bolt 6 is inserted into the stop bolt hole to limit the upper roller assembly 2.

[0044] The sliding mold removal device provided in this embodiment is used to remove the template below which the concrete has been poured as follows:

[0045] S1: The slide rail 1 in the sliding demoulding device is fixedly connected to the upper steel frame system. The steel frame system can be lifted upwards as the construction progresses.

[0046] S2: During the vertical construction of the core tube of a super high-rise building, the wall thickness of the upper structure may be smaller than that of the lower structure. According to the thickness of the upper structure that needs to be reduced, the positions of the upper roller assembly 2 and the lower roller assembly 3 on the slide rail 1 are adjusted in advance so that the displacement distance of the subsequent roller assemblies meets the wall reduction requirements. Figure 7 As shown, the top roller assembly 2 and the lower hanging roller assembly 3 drive the sliding beam 4 to move, so that the lifting device 5 hung at the front end of the sliding beam 4 is flush with the surface of the hanging template below. The hook below the lifting device 5 is hung on the hanging template to adjust the position of the hanging template.

[0047] S3: Figure 8 As shown, the positions of the top roller assembly 2 and the lower hanging roller assembly 3 on the slide rail 1 are adjusted so that the top roller assembly 2 and the lower hanging roller assembly 3 drive the sliding beam 4 to move to the rear end. The hanging formwork hung on the lifting device 5 leaves the concrete wall that has been poured, and the demolding is completed there.

[0048] S4: The steel frame system is lifted upward as the construction progresses, driving the entire sliding mold removal device to lift upward. Adjust the position of the top roller assembly 2 and the lower hanging roller assembly 3 on the slide rail 1 so that the top roller assembly 2 and the lower hanging roller assembly 3 drive the sliding beam 4 to move to the front end until the hanging formwork hung on the lifting device 5 moves to the outside of the wall to be poured. Fig. 9 shown.

[0049] The sliding demoulding device provided by the present invention can be extended and retracted to adapt to changes in wall thickness, and will not block or affect the operation of the main structure (shear wall reinforcement) during the demoulding process. Through this type of two-stage telescopic formwork suspension slide rail, the height of the top formwork (steel platform) can be effectively reduced, the amount of steel used can be reduced, and the adaptability of the platform to the construction of the main structure can be enhanced. In addition to being applied to the top formwork (steel platform), the sliding demoulding device can also be used in construction formwork systems such as integral climbing formwork.

[0050] The above-described embodiment is only a preferred solution of the present invention, but it is not intended to limit the present invention. A person skilled in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A sliding demoulding device for a suspended formwork suitable for variable cross-section construction, characterized in that: The sliding type demoulding device comprises a slide rail (1), an upper roller assembly (2), a lower hanging roller assembly (3), a sliding beam (4) and a lifting device (5); The slide rail (1) is fixed to the upper steel frame system via a connecting piece (7); the sliding beam (4) is arranged at intervals below the slide rail (1); a first connection hole group (41) for fixing the upper top roller assembly (2) and a second connection hole group (42) for fixing the lower hanging roller assembly (3) are arranged at intervals on the upper flange of the sliding beam (4); a lifting connection plate (43) for setting a lifting device (5) is fixed at one end of the sliding beam (4); the lifting device (5) is used to lift the hanging template below; An upper roller assembly (2) and a lower hanging roller assembly (3) are arranged between the slide rail (1) and the sliding beam (4), wherein the lower hanging roller assembly (3) is arranged at an end close to the lifting connection plate (43), and the upper roller assembly (2) is arranged at an end away from the lifting connection plate (43); the upper roller assembly (2), the lower hanging roller assembly (3) and the sliding beam (4) are fixedly connected, and the upper roller assembly (2), the lower hanging roller assembly (3) and the slide rail (1) form a sliding connection; the upper roller assembly (2) and the lower hanging roller assembly (3) drive the sliding beam (4) to move forward and backward along the length direction of the slide rail (1), and are suitable for demoulding the suspended formwork in variable cross-section construction.

2. The sliding demoulding device for suspended formwork suitable for variable cross-section construction according to claim 1 is characterized in that: The upper roller assembly (2) comprises an upper roller bottom plate (21), an upper roller side plate (22) and an upper roller (24); a connection hole group matching the first connection hole group (41) is provided on the upper roller bottom plate (21); the upper roller side plates (22) are respectively and vertically fixed at both ends of the upper surface of the upper roller bottom plate (21); an upper roller (24) is provided between the two upper roller side plates (22); an anti-detachment top plate (23) is also provided above the upper roller (24) to prevent the upper roller (24) from detaching from the slide rail (1), and the distance between the upper roller (24) and the anti-detachment top plate (23) is greater than the thickness of the lower flange of the slide rail (1); The lower hanging roller assembly (3) comprises a lower hanging roller bottom plate (31), a lower hanging roller side plate (32) and a lower roller (34); a connection hole group matching the second connection hole group (42) is provided on the lower hanging roller bottom plate (31); the lower hanging roller side plates (32) are respectively and vertically fixed at both ends of the upper surface of the lower hanging roller bottom plate (31); a lower roller (34) is provided between the two lower hanging roller side plates (32); a limiting middle plate (33) is also provided below the lower roller (34), and the distance between the lower roller (34) and the limiting middle plate (33) is greater than the thickness of the lower flange of the slide rail (1).

3. The sliding demoulding device for suspended formwork suitable for variable cross-section construction according to claim 2 is characterized in that: The upper roller side plate (22) is provided with a hole for arranging a connecting shaft, one end of the connecting shaft is fixedly connected to the hole on the upper roller side plate (22) by plug welding, and the other end of the connecting shaft is rotatably connected to the upper roller (24).

4. The sliding demoulding device for suspended formwork suitable for variable cross-section construction according to claim 2 is characterized in that: The lower hanging roller side plate (32) is provided with a hole for arranging a connecting shaft, one end of the connecting shaft is fixedly connected to the hole on the lower hanging roller side plate (32) by plug welding, and the other end of the connecting shaft is rotatably connected to the lower roller (34).

5. The sliding demoulding device for suspended formwork suitable for variable cross-section construction according to claim 1 is characterized in that: The slide rail (1) and the sliding beam (4) are both made of H-shaped steel or I-shaped steel.

6. The sliding type demoulding device for suspended formwork suitable for variable cross-section construction according to claim 1 is characterized in that: A limit plate (12) is provided at one end of the slide rail (1) close to the lower hanging roller assembly (3) for preventing the lower hanging roller assembly (3) from detaching from the slide rail (1); the limit plate (12) is fixed between the upper flange and the lower flange of the slide rail (1) by welding.

7. The sliding demoulding device for suspended formwork suitable for variable cross-section construction according to claim 1 is characterized in that: A stop bolt (6) is provided at one end of the slide rail (1) close to the upper roller assembly (2) for preventing the upper roller assembly (2) from detaching from the slide rail (1); a stop bolt hole is provided on the lower flange of the slide rail (1), and the stop bolt (6) is inserted into the stop bolt hole to limit the upper roller assembly (2).

8. The sliding type demoulding device for suspended formwork suitable for variable cross-section construction according to claim 1 is characterized in that: The lifting device (5) is an electric hoist.

9. The sliding type demoulding device for suspended formwork suitable for variable cross-section construction according to claim 1 is characterized in that: The sliding demoulding device is fixed below the steel secondary beam (8) of the steel frame system; both ends of the upper flange of the slide rail (1) are provided with a slide rail connection hole group (11), and the slide rail (1) is fixed below the steel secondary beam (8) by passing a connecting piece (7) through the slide rail connection hole group (11).

10. The sliding demoulding device for suspended formwork suitable for variable cross-section construction according to claim 9, characterized in that: The connecting piece (7) is a bolt and a matching nut.

Images