Movable concrete foundation steel structure temporary support

Abstract

The utility model belongs to the technical field of bridge construction, and relates to a movable concrete foundation steel structure temporary support which comprises four supporting pipes, I-shaped steel is fixedly connected between the top of the supporting pipe on one side and the top of the supporting pipe on the other side respectively, a foundation plate is arranged below the supporting pipes, and the foundation plate is fixedly connected with the supporting pipes. Flange rings are arranged at the positions, close to the four corners, of the top of the foundation plate respectively, and mounting pipes are fixedly connected to the tops of the flange rings. Through mutual cooperation of the supporting pipes, the mounting pipes, the internal thread rings, the screw columns, the top plate, the positioning rods and the like, the use height of the screw columns can be adjusted after the screw columns are rotated, and the adjusted positions can be fixed; in this way, the temporary support can adapt to more bridges with different heights, the supporting pipes and the foundation plate can be detached after use, the supporting pipes on the front side and the supporting pipes on the rear side can be separated, the foundation plate, the supporting pipes and the like can be conveniently hoisted and moved to the needed positions, and the problem that the temporary support cannot be detached and moved can be effectively solved.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology and relates to a movable concrete foundation steel structure temporary support. Background Technology

[0002] In bridge construction, temporary supports play an indispensable role as an important support structure. Their main function is to provide stable and reliable temporary support during bridge construction, ensuring that the project can be carried out safely and efficiently. With the continuous expansion of the scale of engineering construction and the increasingly complex and diverse construction environment, more stringent requirements are being placed on the performance and function of bridge temporary supports.

[0003] The following technical problems exist in the existing technology:

[0004] Traditional temporary scaffolding, especially steel structure temporary scaffolding with concrete foundations, has many limitations. Among them, the lack of height adjustment is a prominent problem. In actual construction scenarios, different construction stages, different construction techniques, and different working environments often require temporary scaffolding to have different heights. For example, during the pouring of bridge piers, as the height of the piers increases, the temporary scaffolding needs to be raised to meet the construction requirements. However, most existing temporary scaffolding has a fixed height once installed, making it difficult to flexibly adjust according to the actual construction situation. This means that when the height of the temporary scaffolding needs to be changed during actual construction, it often requires a lot of manpower, material resources, and time to rebuild or dismantle the scaffolding. This not only increases construction costs but also seriously affects construction efficiency and may even lead to safety hazards due to construction interruption.

[0005] In addition, some existing bridge temporary supports are non-removable after fabrication, making them unusable and unmovable. Furthermore, since the bases are cast into the road surface, most temporary supports are difficult to disassemble and reassemble after construction is completed due to their structural design. Moreover, the bases can only be disposed of after disassembly, which not only damages the road surface during disassembly but also results in a significant waste of resources. Utility Model Content

[0006] The technical problem this invention aims to solve is that the height of traditional temporary bridge supports is not adjustable, and the temporary supports cannot be easily disassembled and moved after use.

[0007] The movable concrete foundation steel structure temporary support described in this utility model includes four support pipes. I-shaped steel is fixedly connected between the top of one support pipe and the top of the other support pipe. A foundation plate is provided below the support pipe. Flange rings are provided near the four corners of the top of the foundation plate. An installation pipe is fixedly connected to the top of the flange ring. The top of the installation pipe extends into the support pipe. Symmetrical perforations are provided on the top of the I-shaped steel. Threaded columns are provided in the perforations. Adjustment mechanisms are symmetrically provided on the tops of two I-shaped steels. The adjustment mechanisms are movably connected to the threaded columns. Fixed connecting plates are fixedly connected between two adjacent support pipes. A disassembly mechanism is provided between the four support pipes.

[0008] Preferably, the adjusting mechanism includes four internal threaded rings, which are respectively sleeved on the side wall of the threaded column. The bottom of the internal threaded ring is rotatably connected to the top of the I-shaped steel. The internal threaded ring matches the threaded column. The top of the internal threaded ring is fixedly connected with evenly distributed handles. Limiting mechanisms are symmetrically arranged on the tops of the two I-shaped steels.

[0009] Preferably, the disassembly mechanism includes perforations, which are respectively formed on the side walls of the support tube and the mounting tube. There are two perforations on the same support tube and the mounting tube. A bolt is installed in the perforation, and one end of the bolt passes through the perforation and extends to the outside of the support tube where a nut is installed. Several movable connecting plates are respectively provided between the support tube on one side and the support tube on the other side. An ear plate is installed on one side of the movable connecting plate and the ear plate is fixedly connected to the outer wall of the support tube.

[0010] Preferably, the limiting mechanism includes four U-shaped plates, which are symmetrically fixed to the top of the I-shaped steel. Positioning rods are symmetrically arranged above the I-shaped steel, and the positioning rods are L-shaped. The outer wall of the internal threaded ring has evenly distributed positioning grooves. One end of the positioning rod passes through the U-shaped plate and extends into the positioning groove. Baffles are fixedly connected to the top of two I-shaped steels, and springs are fixedly connected to the side of the positioning rod opposite to the baffles.

[0011] Furthermore, each of the four threaded rods is fixedly connected to a top plate.

[0012] Furthermore, each of the four flange rings is fitted with a screw at its top, the bottom end of which penetrates the base plate and extends below the base plate.

[0013] Furthermore, a limiting rod is fixedly connected to the side wall of the top plate. The limiting rod is L-shaped, and the bottom end of the limiting rod passes through the I-shaped steel and is movably connected to the I-shaped steel. An anti-detachment plate is fixedly connected to the bottom end of the limiting rod.

[0014] Furthermore, an annular slider is fixedly connected to the bottom of the internal threaded ring, and an annular groove matching the annular slider is opened on the top of the I-shaped steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Through the cooperation of support pipes, installation pipes, internal threaded rings, threaded rods, top plates, and positioning rods, the working height of the threaded rods can be adjusted by rotating them, and the adjusted position can be fixed. This can accommodate bridges of different heights. After use, the support pipes and foundation plates can be disassembled, and the front and rear support pipes can be separated to facilitate the hoisting and movement of the foundation plates and support pipes to the required position. This effectively solves the problem that temporary supports cannot be disassembled and moved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall bottom view of the structure of this utility model;

[0019] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0020] Figure 4 This is a schematic diagram showing the distribution of the mounting pipe positions in this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the internal threaded ring in this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the wire column in this utility model.

[0023] In the diagram: 1. Support pipe; 2. I-beam; 3. Base plate; 4. Flange ring; 5. Mounting pipe; 6. Fixed connecting plate; 7. Bolt; 8. Movable connecting plate; 9. Ear plate; 10. Screw; 11. Through hole; 12. Internal threaded ring; 13. Threaded stud; 14. Handle; 15. Top plate; 16. Positioning groove; 17. U-shaped plate; 18. Positioning rod; 19. Spring; 20. Baffle; 21. Limiting rod; 22. Anti-detachment plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] Example 1

[0028] like Figures 1-6 As shown, the system includes four support pipes 1. I-shaped steel 2 is fixedly connected between the top of the support pipe 1 on one side and the support pipe 1 on the other side. A base plate 3 is provided below the support pipe 1. Flange rings 4 are provided near the four corners of the top of the base plate 3. An installation pipe 5 is fixedly connected to the top of the flange ring 4. The top of the installation pipe 5 extends into the support pipe 1. The top of the I-shaped steel 2 has symmetrically opened through holes 11. A threaded column 13 is provided in the through holes 11. An adjustment mechanism is symmetrically provided on the top of two I-shaped steel 2. The adjustment mechanism is movably connected to the threaded column 13. A fixed connecting plate 6 is fixedly connected between two adjacent support pipes 1. A disassembly mechanism is provided between the four support pipes 1.

[0029] The base plate 3 in this technical solution is made of concrete and needs to be precast. It is generally rectangular in shape, and steel bars or steel plates can be added inside during casting to improve the hardness of the concrete. The support pipe 1 and the installation pipe 5 in this technical solution are both made of steel. In actual use, the number and position of the perforations 11 can be set as needed to increase the convenience of loading and unloading.

[0030] like Figures 3-6 As shown, the adjustment mechanism includes four internal threaded rings 12, which are respectively sleeved on the side wall of the threaded column 13. The bottom of the internal threaded ring 12 is rotatably connected to the top of the I-shaped steel 2. The internal threaded ring 12 matches the threaded column 13. The top of the internal threaded ring 12 is fixedly connected with evenly distributed handles 14. The tops of the two I-shaped steels 2 are respectively symmetrically provided with limit mechanisms.

[0031] In this technical solution, the bottom of the internal threaded ring 12 is fixedly connected to an annular slider, and the top of the I-shaped steel 2 is provided with an annular groove that matches the annular slider. This is mainly to prevent the internal threaded ring 12 from disengaging from the I-shaped steel 2 when it can rotate. If necessary, grease can be applied to the groove to make it easier to rotate the internal threaded ring 12. In addition, both the internal threaded ring 12 and the threaded rod 13 are made of stainless steel, which makes the material more durable and improves the stability of use.

[0032] Example 2

[0033] like Figures 1-4 As shown, the disassembly mechanism includes a through hole 11, which is respectively opened on the side wall of the support tube 1 and the mounting tube 5. There are two through holes 11 on the same support tube 1 and the mounting tube 5. A bolt 7 is installed in the through hole 11. One end of the bolt 7 passes through the through hole 11 and extends to the outside of the support tube 1 to install a nut. Several movable connecting plates 8 are respectively arranged between the support tube 1 on one side and the support tube 1 on the other side. An ear plate 9 is installed on one side of the movable connecting plate 8 and is fixedly connected to the outer wall of the support tube 1.

[0034] The disassembly mechanism allows for the separation of the support pipe 1 and the base plate 3. The front support pipe 1 and the rear support pipe 1 can be separated, which makes it convenient for workers to hoist the bracket onto a truck for transfer. Since the base plate 3 is in contact with the ground, it can be hoisted and transferred without breaking it, thus effectively avoiding damage to the road surface.

[0035] like Figures 5-6 As shown, the limiting mechanism includes four U-shaped plates 17, which are symmetrically fixed to the top of the I-shaped steel 2. Positioning rods 18 are symmetrically arranged above the I-shaped steel 2. The positioning rods 18 are L-shaped. The outer wall of the internal threaded ring 12 is provided with evenly distributed positioning grooves 16. One end of the positioning rod 18 passes through the U-shaped plate 17 and extends into the positioning groove 16. Baffles 20 are fixedly connected to the top of the two I-shaped steels 2 respectively. Springs 19 are fixedly connected to the side of the positioning rod 18 opposite to the baffles 20 respectively.

[0036] The top of each of the four threaded columns 13 is fixedly connected to a top plate 15. The top plate 15 increases the contact area with the bottom of the bridge, thereby increasing the friction and making the bridge more stable during use, thus preventing slippage due to vibration.

[0037] In addition, screws 10 are installed on the top of the four flange rings 4 respectively. The bottom end of the screws 10 penetrates the base plate 3 and extends to the bottom of the base plate 3. If necessary, longer screws 10 can be used to penetrate the base plate 3 and enter the road surface when the flange rings 4 are fixed. This fixes the position of the base plate 3 on the road surface and prevents the base plate 3 from shifting due to vibration during use.

[0038] Among them, a limiting rod 21 is fixedly connected to the side wall of the top plate 15. The limiting rod 21 is L-shaped. The bottom end of the limiting rod 21 passes through the I-shaped steel 2 and is movably connected to the I-shaped steel 2. An anti-detachment plate 22 is fixedly connected to the bottom end of the limiting rod 21. The limiting rod 21 can prevent the threaded rod 13 from rotating when the internal threaded ring 12 is rotated, so that the threaded rod 13 only moves up or down, mainly playing the role of limiting.

[0039] In addition, an annular slider is fixedly connected to the bottom of the internal threaded ring 12, and an annular groove matching the annular slider is opened on the top of the I-shaped steel 2. The internal threaded ring 12 can be limited by the slider and the groove, so that the internal threaded ring 12 will not separate from the I-shaped steel 2 when it rotates.

[0040] Working principle: Before use, because the foundation slab 3 is made of concrete, it needs to be prefabricated. After fabrication, the flange ring 4 and mounting pipe 5 are installed on top of the foundation slab 3 using screws 10. When needed, the support pipe 1, I-beam 2, and foundation slab 3 can be transported to the required location. The foundation slab 3 is then placed in the designated location, typically under the bridge. Next, the support pipe 1 is fitted onto the mounting pipe 5, and bolts 7 are passed through the holes 11 on both the support pipe 1 and the mounting pipe 5, secured with nuts. Finally, the movable connecting plate 8 is installed on the ear plate 9 using connectors, ensuring a stable connection between the four support pipes 1. Pulling the positioning rod 18 compresses the spring 19, causing the positioning rod 18 to disengage from the positioning groove 16. Then, the internal threaded ring 12 can be rotated forward, driving the threaded column 13 and the top plate 15 to rise. Simultaneously, the top plate 15 drives the limiting rod 21 to rise, causing the top plate 15 to press against the bottom of the bridge. When the internal threaded ring 12 can no longer be rotated, the positioning rod 18 is released. Simultaneously, the rebound force of the spring 19 pushes the positioning rod 18 into the positioning groove 16, thus fixing the position of the internal threaded ring 12. The above operation can complete the installation of the bracket, and it can also be easily disassembled and moved. In addition, the above operation can be adjusted according to actual needs to effectively solve the problem of not being able to adapt to more construction environments.

[0041] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A movable temporary support for a steel structure on a concrete foundation, comprising a support pipe (1), characterized in that: Four support pipes (1) are provided. I-shaped steel (2) is fixedly connected between the top of the support pipe (1) on one side and the top of the support pipe (1) on the other side. A base plate (3) is provided below the support pipe (1). Flange rings (4) are provided near the four corners of the top of the base plate (3). An installation pipe (5) is fixedly connected to the top of the flange ring (4). The top of the installation pipe (5) extends into the support pipe (1). The top of the I-shaped steel (2) is symmetrically provided with perforations (11). A threaded column (13) is provided in the perforation (11). An adjustment mechanism is symmetrically provided on the top of two I-shaped steels (2). The adjustment mechanism is movably connected to the threaded column (13). A fixed connecting plate (6) is fixedly connected between two adjacent support pipes (1). A disassembly mechanism is provided between the four support pipes (1).

2. The movable concrete foundation steel structure temporary support according to claim 1, characterized in that: The adjustment mechanism includes four internal threaded rings (12), which are respectively sleeved on the side wall of the threaded column (13). The bottom of the internal threaded ring (12) is rotatably connected to the top of the I-shaped steel (2). The internal threaded ring (12) matches the threaded column (13). The top of the internal threaded ring (12) is fixedly connected with evenly distributed handles (14). Limiting mechanisms are symmetrically arranged on the tops of the two I-shaped steels (2).

3. The movable concrete foundation steel structure temporary support according to claim 2, characterized in that: The disassembly mechanism includes a through hole (11), which is respectively opened on the side wall of the support tube (1) and the mounting tube (5). There are two through holes (11) on the same support tube (1) and the mounting tube (5). A bolt (7) is installed in the through hole (11). One end of the bolt (7) passes through the through hole (11) and extends to the outside of the support tube (1) where a nut is installed. Several movable connecting plates (8) are respectively arranged between the support tube (1) on one side and the support tube (1) on the other side. An ear plate (9) is installed on one side of the movable connecting plate (8). The ear plate (9) is fixedly connected to the outer wall of the support tube (1).

4. The movable concrete foundation steel structure temporary support according to claim 2, characterized in that: The limiting mechanism includes a U-shaped plate (17), and four U-shaped plates (17) are provided. The four U-shaped plates (17) are symmetrically fixed on the top of the I-shaped steel (2). A positioning rod (18) is symmetrically arranged above the I-shaped steel (2). The positioning rod (18) is L-shaped. The outer wall of the internal threaded ring (12) is provided with evenly distributed positioning grooves (16). One end of the positioning rod (18) passes through the U-shaped plate (17) and extends into the positioning groove (16). The tops of the two I-shaped steels (2) are respectively fixedly connected to baffles (20). The side of the positioning rod (18) opposite to the baffle (20) is respectively fixedly connected to a spring (19).

5. The movable concrete foundation steel structure temporary support according to claim 1, characterized in that: The top ends of the four threaded rods (13) are respectively fixedly connected to top plates (15).

6. The movable concrete foundation steel structure temporary support according to claim 1, characterized in that: Each of the four flange rings (4) is fitted with a screw (10) at its top. The bottom of the screw (10) penetrates the base plate (3) and extends to the bottom of the base plate (3).

7. The movable concrete foundation steel structure temporary support according to claim 5, characterized in that: A limiting rod (21) is fixedly connected to the side wall of the top plate (15). The limiting rod (21) is L-shaped. The bottom end of the limiting rod (21) passes through the I-shaped steel (2) and is movably connected to the I-shaped steel (2). An anti-detachment plate (22) is fixedly connected to the bottom end of the limiting rod (21).

8. The movable concrete foundation steel structure temporary support according to claim 2, characterized in that: The bottom of the internal threaded ring (12) is fixedly connected to an annular slider, and the top of the I-shaped steel (2) is provided with an annular groove that matches the annular slider.

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