Support structure for a complete set of steel formwork

Abstract

The present application discloses a support structure for a complete set of steel formworks applied to the field of steel formwork support. Through the mutual cooperation among the arc support assemblies, the central support, and the second threaded adjusting rod, during use, by means of hoisting, two sets of arc support assemblies are hoisted into the steel formwork, and they are assembled and connected through the rotary connectors of the arc support assemblies. At this time, by adjusting the length of the first threaded adjusting rod, the two arc plates of the arc support assembly are expanded outward and maintain the designed circular arc degree. Then, the second threaded adjusting rod and the nut seat are adjusted again until the two alignment plates are aligned and the displacement amounts of the nut seats are the same, thereby adjusting the overall circular arc degree of the two opposite arc support assemblies, making the outer side of the steel formwork present a standard circular arc degree and standardizing the molding of the cast concrete. After the present invention is used up, it can be disassembled and stored as a whole, occupies a small volume during transportation, and is convenient and accurate for support adjustment, having market prospects and being suitable for popularization and application.

Description

Technical Field

[0001] This application relates to the field of steel formwork supports, and particularly to the support structure of a complete set of steel formworks. Background Art

[0002] In recent years, the construction of urban underground space projects has developed rapidly, and high and large formwork support systems have been widely used in the structural construction of underground projects such as subway stations and utility tunnels. At present, the wooden formwork support system is the main method for the construction of the side walls of the main structure of subway stations.

[0003] However, the wooden formwork support system requires high assembly accuracy between formworks, and a full hall support needs to be erected as the support system for the side wall formwork, which takes a long time; the strength of the wooden formwork is low, and it is easy to have large deformation, cracking at the formwork joints, and leakage of slurry, resulting in poor appearance quality of the concrete after demoulding, making it difficult to control the construction quality of underground structures; at the same time, during the process of repeated turnover use, the formwork loss is large, and the economy and environmental protection are poor. With the improvement of society's requirements for the construction quality, construction efficiency, and environmental protection of underground projects, the steel formwork support system has become an important means to improve the construction quality and construction efficiency of underground concrete structures.

[0004] Among them, for the inner support structure of cylindrical steel formworks, the prior art cannot maintain its circularity and coaxiality, and it is not convenient for disassembly and assembly. Therefore, we propose a support structure for a complete set of steel formworks to solve the above problems. Summary of the Invention

[0005] The purpose of this application is to design an inner support for steel formworks that is convenient for adjustment and disassembly. Compared with the prior art, a support structure for a complete set of steel formworks is provided. By symmetrically arranging a number of arc-shaped support assemblies at equal intervals from top to bottom inside the steel formwork, two arc-shaped support assemblies are symmetrically arranged. The arc-shaped support assembly includes two symmetrically arranged arc-shaped plates. The opposite sides of the two arc-shaped plates are fixedly connected through an intermediate connector. Rotating connection seats are fixed at the ends of the two arc-shaped plates away from each other. The ends of the two arc-shaped support assemblies in the same horizontal plane are assembled and connected through the rotating connection seats;

[0006] A central support is fixed inside the intermediate connector, a longitudinal support is fixed on the arc-shaped plate, a first threaded adjusting rod is provided between the two longitudinal supports of the same arc-shaped support assembly, and the two ends of the first threaded adjusting rod are respectively rotatably connected to the longitudinal supports. A vertical through pipe is provided on the central support, and the vertical through pipe is sleeved outside the first threaded adjusting rod;

[0007] On one side of the central support away from the intermediate connector, there is an adjusting thread. A nut seat matching the adjusting thread is provided on the adjusting thread. A rotating ring is rotatably connected to the outer side of the nut seat. A second threaded adjusting rod is further provided between the rotating ring and the longitudinal support. One end of the second threaded adjusting rod is rotatably connected to the longitudinal support, and the other end of the second threaded adjusting rod is rotatably connected to the outer wall of the rotating ring through a universal joint;

[0008] At the end of the central support away from the intermediate connector, there is also a positioning plate. On one side of the positioning plate, there is a sliding rod for slidably connecting to the end of the central support. A tension spring is clamped between the sliding rod and the central support. On the side of the positioning plate away from the central support, there is an observation hole, and connection holes are provided at the four corners of the positioning plate.

[0009] Further, the overall arc length of the arc-shaped support assembly is equal to one-half of the inner circumference of the steel formwork, and the arc length of the arc-shaped plate is equal to one-fourth of the inner circumference of the steel formwork.

[0010] Further, the tension spring is a high-strength anti-fatigue spring structure, and the tension spring has an elastic force to drive the positioning plate away from the central support.

[0011] Further, protective rubber pads are glued to the opposite sides of the two positioning plates. When the two positioning plates are closed, the two positioning plates are fixedly connected through locking bolts and connection holes.

[0012] Further, the vertical through pipe is perpendicularly arranged to the central support, and the inner diameter of the vertical through pipe is larger than the outer diameter of the first threaded adjusting rod.

[0013] Further, scale marks for recording the displacement distance of the nut seat are provided on the central support.

[0014] Compared with the prior art, the advantages of this application are:

[0015] Through the mutual cooperation among the arc-shaped support assembly with an arc-shaped plate, a longitudinal support, a rotary connecting seat, and an intermediate connecting member, a central support with a vertical through pipe and an adjusting thread, and a second threaded adjusting rod with a rotary ring, a nut seat, and a universal joint, during actual use, through hoisting, two sets of arc-shaped support assemblies are hoisted into the steel formwork, and the two are assembled and connected through the rotary connecting seat of the arc-shaped support assembly. At this time, by adjusting the length of the first threaded adjusting rod, the two arc-shaped plates of the arc-shaped support assembly are expanded outward and the designed circular arc degree is maintained. Then, the second threaded adjusting rod and the nut seat are adjusted until the two alignment plates are aligned and the displacement amounts of the nut seats are the same, thereby adjusting the overall circular arc degree of the two opposite arc-shaped support assemblies. In this way, the overall circumferential degree of the two arc-shaped support assemblies approaches the designed value, the outer side of the steel formwork presents a standard circular arc degree, and the formed concrete is standardized. At the same time, after the adjustment is completed, the observation hole can be set vertically by adjusting the alignment plate, and then vertical laser is irradiated from the top or bottom to detect the coaxiality and verticality of multiple arc-shaped support assemblies. At the same time, after the present invention is used up, it can be disassembled and stored as a whole, occupies a small volume during transportation, and is convenient, accurate, and precise in support adjustment. It has a market prospect and is suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present application;

[0017] Figure 2 is a schematic top view structural diagram of the present application;

[0018] Figure 3 is a schematic structural diagram of the arc-shaped support assembly proposed in the present application;

[0019] Figure 4 is an exploded structural diagram of the central support and its components proposed in the present application;

[0020] Figure 5 is a schematic structural diagram of the second threaded adjusting rod and its components proposed in the present application.

[0021] Description of the reference numerals in the drawings:

[0022] Steel formwork 1, arc-shaped support assembly 2, arc-shaped plate 21, longitudinal support 22, rotary connecting seat 23, intermediate connecting member 24, central support 3, vertical through pipe 31, adjusting thread 32, first threaded adjusting rod 4, second threaded adjusting rod 5, rotary ring 51, nut seat 52, universal joint 53, alignment plate 6, observation hole 61, connection hole 62, sliding rod 63, tension spring 64. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0024] Embodiment 1:

[0025] The present application discloses a support structure for a set of steel formworks. Please refer to Figures 1-5 , which includes a number of arc-shaped support assemblies 2 symmetrically arranged in the steel formwork 1 at equal intervals from top to bottom. The two arc-shaped support assemblies 2 are symmetrically arranged. The arc-shaped support assembly 2 includes two symmetrically arranged arc-shaped plates 21. One side of the two arc-shaped plates 21 facing each other is fixedly connected through an intermediate connector 24. One end of each of the two arc-shaped plates 21 away from each other is fixedly provided with a rotary connection seat 23. The ends of the two arc-shaped support assemblies 2 in the same horizontal plane are assembled and connected through the rotary connection seat 23;

[0026] A central support 3 is fixedly arranged inside the intermediate connector 24. A longitudinal support 22 is fixedly arranged on the arc-shaped plate 21. A first threaded adjusting rod 4 is arranged between the two longitudinal supports 22 of the same arc-shaped support assembly 2. The two ends of the first threaded adjusting rod 4 are respectively rotatably connected to the longitudinal supports 22. A vertical through pipe 31 is arranged on the central support 3, and the vertical through pipe 31 is sleeved outside the first threaded adjusting rod 4;

[0027] On the side of the central support 3 away from the intermediate connector 24, an adjusting thread 32 is provided. A nut seat 52 matching the adjusting thread 32 is arranged on the adjusting thread 32. A rotary ring 51 is rotatably connected to the outside of the nut seat 52. A second threaded adjusting rod 5 is further arranged between the rotary ring 51 and the longitudinal support 22. One end of the second threaded adjusting rod 5 is rotatably connected to the longitudinal support 22, and the other end of the second threaded adjusting rod 5 is rotatably connected to the outer wall of the rotary ring 51 through a universal joint 53;

[0028] At the end of the central support 3 away from the intermediate connector 24, a positioning plate 6 is further provided. One side of the positioning plate 6 is provided with a sliding rod 63 for slidably connecting to the end of the central support 3. A tension spring 64 is clamped between the sliding rod 63 and the central support 3. An observation hole 61 is arranged on the side of the positioning plate 6 away from the central support 3, and connection holes 62 are arranged at the four corners of the positioning plate 6.

[0029] It should be noted that in this embodiment, the overall arc length of the arc-shaped support assembly 2 is equal to one-half of the inner circumference of the steel formwork 1, and the arc length of the arc-shaped plate 21 is equal to one-fourth of the inner circumference of the steel formwork 1.

[0030] Furthermore, the tension spring 64 is a high-strength anti-fatigue spring structure, and the tension spring 64 has an elastic force that drives the alignment plate 6 away from the central support 3.

[0031] Wherein, protective rubber pads are adhesively bonded to the opposite sides of the two alignment plates 6. When the two alignment plates 6 are closed, the two alignment plates 6 are fixedly connected through locking bolts and connection holes 62. The vertical through pipe 31 is arranged perpendicular to the central support 3. The inner diameter of the vertical through pipe 31 is larger than the outer diameter of the first threaded adjusting rod 4. A scale mark for recording the displacement distance of the nut seat 52 is provided on the central support 3.

[0032] Through the mutual cooperation among the arc support assembly 2 with the arc plate 21, the longitudinal support 22, the rotary connection seat 23, and the intermediate connecting member 24, the central support 3 with the vertical through pipe 31 and the adjusting thread 32, and the second threaded adjusting rod 5 with the rotary ring 51, the nut seat 52, and the universal joint 53, in actual use, through hoisting, the two arc support assemblies 2 are hoisted into the steel formwork 1, and the two are assembled and connected through the rotary connection seats 23 of the arc support assemblies 2. At this time, by adjusting the length of the first threaded adjusting rod 4, the two arc plates 21 of the arc support assembly 2 are expanded outward and maintain the designed circular arc degree. Then, the second threaded adjusting rod 5 and the nut seat 52 are adjusted again until the two alignment plates 6 are closed and the displacement amounts of the nut seat 52 are the same. Furthermore, the overall circular arc degree of the two opposite arc support assemblies 2 is adjusted, so that the overall circumferential degree of the two arc support assemblies 2 approaches the designed value, the outer side of the steel formwork 1 presents a standard circular arc degree, and the formed concrete is standardized. At the same time, after the adjustment is completed, the alignment plate 6 can be adjusted to make the observation hole 61 vertically arranged, and then vertical laser is irradiated from the top or the bottom to detect the coaxiality and verticality of the multiple arc support assemblies 2. At the same time, after the present invention is used up, it can be integrally disassembled and stored, and the occupied volume during transportation is small, and the support adjustment is convenient and accurate, having a market prospect and being suitable for popularization and application.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application, according to the technical solution and its improvement concept of the present application, makes equivalent replacement or change, and should be covered by the protection scope of the present application.

Claims

1. The supporting structure of the complete set of steel formwork includes a number of arc-shaped supporting assemblies (2) evenly arranged at equal intervals from top to bottom and symmetrically disposed within the steel formwork (1). The two arc-shaped supporting assemblies (2) are symmetrically arranged. It is characterized in that each arc-shaped supporting assembly (2) includes two symmetrically arranged arc-shaped plates (21). The opposite sides of the two arc-shaped plates (21) are fixedly connected through an intermediate connecting member (24). Rotating connecting seats (23) are fixed at the ends of the two arc-shaped plates (21) away from each other. The ends of the two arc-shaped supporting assemblies (2) in the same horizontal plane are assembled and connected through the rotating connecting seats (23); a central support (3) is fixed inside the intermediate connecting member (24). Longitudinal supports (22) are fixed on the arc-shaped plates (21). A first threaded adjusting rod (4) is provided between the two longitudinal supports (22) of the same arc-shaped supporting assembly (2). The two ends of the first threaded adjusting rod (4) are respectively rotatably connected to the longitudinal supports (22). A vertical through pipe (31) is provided on the central support (3). The vertical through pipe (31) is sleeved outside the first threaded adjusting rod (4); on the side of the central support (3) away from the intermediate connecting member (24), an adjusting thread (32) is provided. A nut seat (52) matching the adjusting thread (32) is provided on the adjusting thread (32). A rotating ring (51) is rotatably connected to the outside of the nut seat (52). A second threaded adjusting rod (5) is further provided between the rotating ring (51) and the longitudinal support (22). One end of the second threaded adjusting rod (5) is rotatably connected to the longitudinal support (22), and the other end of the second threaded adjusting rod (5) is rotatably connected to the outer wall of the rotating ring (51) through a universal joint (53); at the end of the central support (3) away from the intermediate connecting member (24), a positioning plate (6) is further provided. A sliding rod (63) for slidably connecting to the end of the central support (3) is provided on one side of the positioning plate (6). A tension spring (64) is clamped between the sliding rod (63) and the central support (3). An observation hole (61) is provided on the side of the positioning plate (6) away from the central support (3). Connecting holes (62) are provided at the four corners of the positioning plate (6); the overall arc length of the arc-shaped supporting assembly (2) is equal to one-half of the inner circumference of the steel formwork (1), and the arc length of the arc-shaped plate (21) is equal to one-fourth of the inner circumference of the steel formwork (1); the vertical through pipe (31) is perpendicularly arranged with respect to the central support (3), and the inner diameter of the vertical through pipe (31) is larger than the outer diameter of the first threaded adjusting rod (4).

2. The supporting structure of the complete set of steel formwork according to claim 1, It is characterized in that the tension spring (64) is a high-strength anti-fatigue spring structure, and the tension spring (64) has an elastic force that drives the positioning plate (6) away from the central support (3).

3. The supporting structure of the complete set of steel formwork according to claim 1, It is characterized in that On one side of each of the two opposing alignment plates (6), a protective rubber pad is adhesively bonded. When the two alignment plates (6) are joined together, the two alignment plates (6) are fixedly connected by means of locking bolts and connection holes (62).

4. The supporting structure of the complete set of steel formwork according to claim 1, characterized in that a scale mark for recording the displacement distance of the nut seat (52) is provided on the central support (3).

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