Temporary supporting structure in construction process of large-span steel structure

Abstract

The utility model provides a temporary supporting structure in the construction process of a large-span steel structure, belongs to the technical field of steel structure construction, and solves the technical problem that an existing supporting structure cannot carry out extensible long-span supporting on the large-span steel structure. A temporary supporting structure in the construction process of a large-span steel structure comprises a supporting box, a supporting frame fixedly connected to the bottom end of the supporting box and a mounting plate fixedly mounted on the outer wall of the supporting frame. According to the utility model, the extension plates are arranged on the two sides of the supporting box in an extending manner, so that the extension plates on the two sides can be stably stretched and unfolded under the action of a plurality of groups of X-shaped first movable plates and second movable plates; according to the supporting device for the large-span steel structure, the extending plates on the two sides can stably support the large-span steel structure through the supporting columns and the supporting box at the bottom, and compared with existing multi-section type point supporting, supporting from point to surface is achieved, so that the supporting accuracy of the large-span steel structure is higher, the parallelism is better, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel structure construction, and relates to a large-span steel structure construction, in particular to a temporary supporting structure in the large-span steel structure construction process. Background Art

[0002] Nowadays, steel structures are widely used in construction projects and are one of the main types of building structures. During the construction process, the steel structure is connected to the embedded parts in the main structure by high-strength welding on the side close to the reinforced concrete main structure. The steel truss components or parts are usually connected by welding, bolts or rivets. Because of its light weight, convenient construction and beautiful structure, it is widely used in large commercial complexes, super high-rise buildings and other fields.

[0003] After searching, it is found that a Chinese patent document discloses a temporary support structure for the construction process of a large-span steel structure [Application No.: CN202221182647.7; Publication No.: CN217711891U]. This temporary support structure for the construction process of a large-span steel structure inserts a hollow rod into the ground to keep the support structure fixed, making the fixation more secure and the support structure less likely to tilt.

[0004] The patent discloses that the support and fixation of the device by inserting rods improves the stability of the supporting structure. However, when constructing a large-span steel structure, due to the large span of the steel structure, multiple temporary supporting structures are usually required for support. Due to the segmented arrangement of the supporting structure, multiple groups of supporting structures can only become independent point supports, and the connection between the two groups of supporting structures is poor, which cannot provide stable long-span support for the large-span steel structure. Utility Model Content

[0005] The purpose of the utility model is to address the above-mentioned problems in the existing technology and to propose a temporary support structure for the construction process of a large-span steel structure. The technical problem to be solved by the utility model is: how to achieve flexible long-span support for the large-span steel structure.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A temporary support structure for a large-span steel structure construction process, comprising a support box, a support frame fixedly connected to the bottom end of the support box, and a mounting plate fixedly mounted on the outer wall of the support frame, wherein a positioning box is fixedly connected to the surface of the support box, and two clamping plates are telescopically arranged on the surface of the positioning box, and extension plates are synchronously telescopically arranged on the left and right sides of the surface of the support box;

[0008] The support box is rotatably connected to a hand screw rod through a bearing, and the outer wall of the hand screw rod is connected to a movable block through a ball nut, the surface of the movable block is rotatably connected to a first movable plate through a first rotating shaft, and the middle part of the first movable plate is rotatably connected to a second movable plate through a movable shaft, and one end of the second movable plate is rotatably connected to the support box through a mounting shaft;

[0009] The second movable plate is connected to the first movable plate in an "X"-shaped structure and is provided in multiple groups. The second movable plate at the end is connected to a slider via a second rotating shaft, and the slider is slidably connected to one side of the extension plate.

[0010] By adopting the above structure, through multiple groups of continuously arranged "X"-shaped first movable plates and second movable plates, the extension plate can be stretched through the synchronous telescopic folding of multiple groups of first movable plates and second movable plates, so that the extension plates on both sides are stretched on both sides of the support box to provide multi-point support for the large-span steel structure, realizing support from point to surface, and ensuring the support stability of the large-span steel structure.

[0011] The bottom end of the movable block is fixedly connected with a guide block, and the guide block is slidably connected to the inner wall of the guide groove, and the guide groove is opened on the inner wall of the support box.

[0012] With the above structure, under the action of the guide groove and the guide block, when the hand screw drives the movable block to move, the movable block moves accurately through the guide block, so that the movable block drives the first movable plates on both sides to move synchronously.

[0013] The extension plate is arranged in an "L"-shaped structure, and a sliding groove capable of accommodating the sliding of the slider is provided on the side wall of the extension plate.

[0014] With the above structure, under the action of the slide groove provided on the inner side of the extension plate, the second movable plate drives the slider to move through the second rotating shaft, thereby realizing parallel stretching of the extension plate on both sides of the support box.

[0015] The bottom end of the extension plate is fixedly connected with a plurality of support columns, and one side of the support column is fixedly connected with an insertion rod, and the insertion rod is telescopically arranged inside the support frame.

[0016] By adopting the above structure and setting the support columns, the extension plate has good supporting strength after being pulled out, and by setting the insert rods inside the support frame, the extension path of the extension plate is limited, which facilitates precise extension support on both sides of the support box, further improving the extension accuracy of the extension plate.

[0017] A plurality of groups of anti-slip strips are evenly and equidistantly arranged on the surface of the extension plate and the inner side wall of the clamping plate.

[0018] By adopting the above structure, by setting anti-slip strips on the surface of the extension plate and the inner side of the clamping plate, the supporting contact surface between the supporting structure and the steel structure has an anti-slip effect, ensuring the stability of the steel structure support, avoiding secondary damage to the steel structure due to hard contact, and improving the support safety of the steel structure during the construction process.

[0019] The two clamping plates are mounted on the outer wall of the bidirectional screw rod through ball nuts, and the bidirectional screw rod is rotatably mounted inside the positioning box through bearings.

[0020] With the above structure, the bidirectional screw is installed inside the positioning box through a bearing, and one end of the bidirectional screw is protruded on the outer wall of the positioning box in the form of an external hexagon, which is convenient for users to operate the bidirectional screw with tools, thereby realizing flexible operation of the splint.

[0021] The surface of the positioning box is provided with a through groove which can accommodate the movement of the clamping plate.

[0022] With the above structure, by setting the through groove, the two clamping plates can stably move on the outer wall of the bidirectional screw rod, thereby guiding the movement of the clamping plates and facilitating the clamping plates to stably clamp and fix the steel structure.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] In the utility model, by extending extension plates on both sides of the support box, under the action of multiple groups of first movable plates and second movable plates of the "X"-shaped structure, the extension plates on both sides can be stably stretched and unfolded, so that the extension plates on both sides can stably support the large-span steel structure through the bottom support columns and the support box. Compared with the existing multi-section point support, it realizes support from point to surface, so that the support accuracy of the large-span steel structure is higher, the parallelism is better, and the structure is simple, the operation is convenient, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall structural schematic diagram of a temporary supporting structure during the construction process of a large-span steel structure in the utility model.

[0026] Figure 2 It is a schematic diagram of the connection structure of the support box and the extension plate of the utility model.

[0027] Figure 3 This utility model Figure 2 A is an enlarged structural diagram of FIG.

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of the clamping plate and the positioning box in the utility model.

[0029] In the figure:

[0030] 1. Support box; 2. Support frame; 3. Mounting plate; 4. Positioning box; 5. Clamp; 6. Extension plate; 7. Support column; 8. Insert rod; 9. Hand screw; 10. Movable block; 11. First rotating shaft; 12. First movable plate; 13. Movable shaft; 14. Second movable plate; 15. Mounting shaft; 16. Guide groove; 17. Second rotating shaft; 18. Slider; 19. Slide groove; 20. Anti-slip strip; 21. Bidirectional screw. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] Example

[0033] like Figure 1-Figure 4 As shown;

[0034] A temporary support structure for a large-span steel structure construction process, comprising a support box 1, a support frame 2 fixedly connected to the bottom end of the support box 1, a mounting plate 3 fixedly mounted on the outer wall of the support frame 2, a positioning box 4, a clamping plate 5, an extension plate 6, a support column 7, an insertion rod 8, a hand-tightened screw rod 9, a movable block 10, a first rotating shaft 11, a first movable plate 12, a movable shaft 13, a second movable plate 14, a mounting shaft 15, a guide groove 16, a second rotating shaft 17, a slider 18, a slide groove 19, an anti-slip strip 20 and a bidirectional screw rod 21. The surface of the support box 1 is fixedly connected to the positioning box 4, and the central axis of the support box 1 coincides with the central axis of the positioning box 4. Considering the fixing effect of the device and the steel structure, two clamping plates 5 are telescopically arranged on the surface of the positioning box 4. Specifically, the two clamping plates 5 are installed on the outer wall of the two-way screw rod 21 through ball nuts, and the two-way screw rod 21 is rotatably installed inside the positioning box 4 through bearings. In order to facilitate the user to operate the two-way screw rod 21, one end of the two-way screw rod 21 is provided with an outer hexagonal protrusion on the outer wall of the positioning box 4. The two-way screw rod 21 is arranged to facilitate the user to operate the two-way screw rod 21 through the tool, thereby realizing flexible operation of the clamping plate 5 and avoiding accidental contact with the two-way screw rod 21. In addition, considering the moving effect of the clamping plate 5, a through groove that can accommodate the movement of the clamping plate 5 is opened on the surface of the positioning box 4. Through the setting of the through groove, the two clamping plates 5 can be stably moved on the outer wall of the two-way screw rod 21, thereby realizing the guidance of the movement of the clamping plate 5, which is convenient for the clamping plate 5 to stably clamp and fix the steel structure. Furthermore, in order to realize the extended support of the large-span steel structure, the left and right sides of the surface of the support box 1 are synchronously telescopically arranged with extension plates 6. At the same time, a plurality of groups of anti-slip strips 20 are evenly and equidistantly arranged on the surface of the extension plate 6 and the inner side wall of the clamping plate 5. By arranging the anti-slip strips 20 on the surface of the extension plate 6 and the inner side of the clamping plate 5, the supporting contact surface between the supporting structure and the steel structure has an anti-slip effect, thereby ensuring the stability of the steel structure support, avoiding secondary damage to the hard contact of the steel structure, and realizing the support safety of the steel structure during construction.

[0035] like Figure 1-Figure 4 As shown;

[0036] In order to realize the parallel extension of the extension plate 6 on both sides of the support box 1, multiple groups of support columns 7 are fixedly connected to the bottom end of the extension plate 6, and a plug rod 8 is fixedly connected to one side of the support column 7, and the plug rod 8 is telescopically arranged inside the support frame 2, so that the extension plate 6 has good supporting strength after being pulled out, and the extension path of the extension plate 6 is limited by the arrangement of the plug rod 8 inside the support frame 2, which is convenient for accurate extension support on both sides of the support box 1, and further improves the extension accuracy of the extension plate 6;

[0037] Furthermore, considering the extension effect of the two side extension plates 6 on the two sides of the support box 1, a hand-tightened screw rod 9 is rotatably connected to the support box 1 through a bearing, and the outer wall of the hand-tightened screw rod 9 is connected to a movable block 10 through a ball nut. Through such a configuration, the hand-tightened screw rod 9 rotates to drive the movable block 10 to move. At the same time, a guide block is fixedly connected to the bottom end of the movable block 10, and the guide block is slidably connected to the inner wall of the guide groove 16, and the guide groove 16 is opened on the inner wall of the support box 1, so that the movement accuracy of the movable block 10 in the support box 1 is achieved. In order to achieve the movement of the movable block 10 to drive the extension of the two side extension plates 6, specifically, a first movable plate 12 is rotatably connected to the surface of the movable block 10 through a first rotating shaft 11, and the middle part of the first movable plate 12 is rotatably connected to a second movable plate 14 through a movable shaft 13, and one end of the second movable plate 14 is connected to the mounting shaft 15 is rotatably connected to the support box 1. Furthermore, in order to achieve stable support of the large-span steel structure by the extension plate 6, the second movable plate 14 is connected to the first movable plate 12 in an "X"-shaped structure and multiple groups are arranged. The second movable plate 14 at the end is connected with a slider 18 through a second rotating shaft 17, and the slider 18 is slidably connected to one side of the extension plate 6. The extension plate 6 is arranged in an "L"-shaped structure, and the side wall of the extension plate 6 is provided with a slide groove 19 that can accommodate the sliding of the slider 18. Through multiple groups of continuously arranged "X"-shaped first movable plates 12 and second movable plates 14, the extension plate 6 can be stretched by the synchronous telescopic folding of multiple groups of first movable plates 12 and second movable plates 14, so that the extension plates 6 on both sides are stretched on both sides of the support box 1 to provide multi-point support for the large-span steel structure, thereby achieving support from point to surface and ensuring the support stability of the large-span steel structure.

[0038] The working principle of the utility model is as follows: the supporting structure is placed on the ground, and the stability of the structural installation is achieved by limiting the mounting plate 3 through the drill rod, and the supporting box 1 is supported in the middle of the steel structure, and the bidirectional screw rod 21 is rotated by a tool. Under the action of the clamping plate 5 arranged on the outer wall of the bidirectional screw rod 21, the two clamping plates 5 are clamped and fixed to the steel structure on both sides, ensuring the supporting effect of the supporting box 1 on the steel structure at the bottom, and the stability of the connection between the steel structure and the clamping plate 5 is ensured by arranging the anti-slip strip 20 on the inner wall of the clamping plate 5. At the same time, considering the stable support of the large-span steel structure, in order to realize the expansion and extension of the extension plates 6 on both sides, the hand-tightening screw rod 9 is rotated, so that the hand-tightening screw rod 9 drives the movable The movable block 10 moves, and by connecting the first movable plate 12 on one side of the movable block 10, the first movable plate 12 drives the second movable plate 14 to move through the mounting shaft 15. Under the action of multiple groups of first movable plates 12 and second movable plates 14 arranged in an "X" shape, the extension plate 6 can be stretched by the multiple groups of first movable plates 12 and second movable plates 14, and by arranging support columns 7 and plug rods 8 at the bottom of the extension plate 6, the extension plate 6 can be accurately extended on one side of the support box 1, so that the extension plates 6 on both sides are stretched on both sides of the support box 1 to provide multi-point support for the large-span steel structure, and the surface support for the bottom of the large-span steel structure is achieved, ensuring the support safety of the large-span steel structure.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A temporary support structure for a large-span steel structure during construction, comprising a support box (1), a support frame (2) fixedly connected to the bottom end of the support box (1), and a mounting plate (3) fixedly mounted on the outer wall of the support frame (2), characterized in that: The surface of the support box (1) is fixedly connected to a positioning box (4), and the surface of the positioning box (4) is telescopically provided with two clamping plates (5), and the left and right sides of the surface of the support box (1) are synchronously telescopically provided with extension plates (6); The support box (1) is rotatably connected to a hand screw rod (9) via a bearing, and the outer wall of the hand screw rod (9) is connected to a movable block (10) via a ball nut, the surface of the movable block (10) is rotatably connected to a first movable plate (12) via a first rotating shaft (11), and the middle part of the first movable plate (12) is rotatably connected to a second movable plate (14) via a movable shaft (13), and one end of the second movable plate (14) is rotatably connected to the support box (1) via a mounting shaft (15); The second movable plate (14) is connected to the first movable plate (12) in an "X"-shaped structure and is provided in multiple groups, and the second movable plate (14) at the end is connected to a slider (18) via a second rotating shaft (17), and the slider (18) is slidably connected to one side of the extension plate (6).

2. A temporary support structure for a large-span steel structure during construction according to claim 1, characterized in that: The bottom end of the movable block (10) is fixedly connected to a guide block, and the guide block is slidably connected to the inner wall of the guide groove (16), and the guide groove (16) is opened on the inner wall of the support box (1).

3. The temporary support structure for the construction of a large-span steel structure according to claim 1, characterized in that: The extension plate (6) is arranged in an "L"-shaped structure, and a side wall of the extension plate (6) is provided with a sliding groove (19) capable of accommodating the sliding of the slider (18).

4. The temporary support structure for the construction of a large-span steel structure according to claim 3, characterized in that: The bottom end of the extension plate (6) is fixedly connected to a plurality of support columns (7), and one side of the support column (7) is fixedly connected to an insertion rod (8), and the insertion rod (8) is telescopically arranged inside the support frame (2).

5. The temporary support structure for the construction of a large-span steel structure according to claim 1, characterized in that: A plurality of groups of anti-slip strips (20) are evenly and equidistantly arranged on the surface of the extension plate (6) and the inner side wall of the clamping plate (5).

6. A temporary support structure for the construction process of a large-span steel structure according to claim 5, characterized in that: The two clamping plates (5) are mounted on the outer wall of the bidirectional screw rod (21) via ball nuts, and the bidirectional screw rod (21) is rotatably mounted inside the positioning box (4) via bearings.

7. A temporary support structure for the construction of a large-span steel structure according to claim 6, characterized in that: The surface of the positioning box (4) is provided with a through groove capable of accommodating the movement of the clamping plate (5).

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