A steel formwork arrangement for piers

Abstract

The utility model discloses a kind of steel formwork devices for pier column, including steel formwork, the surface one side of steel formwork is symmetrically equipped with connecting block;The inside of connecting block is connected with connecting plug rod and passes through, the connecting plug rod is connected with steel formwork and passes through, the surface both sides of connecting plug rod are threadedly connected with first anti -drop nut, the surface of one side of first anti -drop nut is fixedly connected with connecting block, the bottom surface of steel formwork is fixedly connected with flange plate;Further include: the surface of the flange plate is equipped with several connecting components;Among them, connecting component includes the threaded plug rod that is connected with flange plate and passes through;By setting flange plate, positioning groove, locating block and the cooperation between connecting component, it can be more convenient when the flange plate between steel formwork is docked, so that the effect of a positioning can be achieved, simultaneously by setting connecting component, it can be connected between multiple flange plates, also more convenient.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a steel formwork device for pier columns. Background Technology

[0002] Steel formwork devices for piers are temporary steel molding molds specifically designed for the construction of concrete piers in bridges, viaducts, and municipal engineering projects. Their core function is to pour concrete into piers that meet the design dimensions, shape, and strength requirements through a pre-designed steel structure. They are key equipment for pier construction in modern civil engineering. In existing technologies, traditional steel formwork is mostly a modular design with fixed dimensions, customized for specific pier diameters and heights. If the pier design parameters change, the formwork is difficult to reuse, has poor versatility, and easily leads to material waste. At the same time, deviations may occur when aligning and installing the flanges between steel formwork.

[0003] A steel formwork device for pier columns is proposed to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a steel formwork device for pier columns, so as to solve the problems mentioned in the background art. The existing traditional steel formwork is mostly a modular design with fixed size, customized for specific pier column diameter and height. If the pier column design parameters change, the formwork is difficult to reuse, has poor versatility, and is prone to material waste. At the same time, when aligning and installing the flanges between the steel formwork, deviations may also occur.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel formwork device for pier columns, comprising a steel formwork, wherein connecting blocks are symmetrically installed on one side of the surface of the steel formwork;

[0006] A connecting rod is connected through the inside of the connecting block. The connecting rod is connected through the steel template. A first anti-loosening nut is threaded on both sides of the surface of the connecting rod. One side of the first anti-loosening nut is fixedly connected to the connecting block. A flange is fixedly connected to the bottom surface of the steel template.

[0007] Also includes:

[0008] The surface of the flange is provided with a number of connecting components;

[0009] The connecting assembly includes a threaded insert that is connected through the flange;

[0010] The threaded insert has a second anti-loosening nut connected to both sides of its threaded connection.

[0011] Preferably, the top surface of the second anti-loosening nut is fitted and connected to the flange.

[0012] Preferably, the threaded insert and the second anti-loosening nut are made of stainless steel.

[0013] Preferably, the flange has a plurality of holes on its surface, the holes being connected to threaded rods, the bottom surface of the flange has a plurality of positioning grooves, and the top surface of the flange has a plurality of positioning blocks symmetrically installed.

[0014] Preferably, the positioning groove is engaged with the positioning block.

[0015] Preferably, the steel template is made of low-alloy high-strength steel, and the flange is made of composite stainless steel plate.

[0016] Preferably, the connecting rod and the first anti-loosening nut are made of stainless steel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This steel formwork device for pier columns, through the cooperation of flanges, positioning grooves, positioning blocks and connecting components, makes it easier to connect the flanges between steel formwork panels, thereby achieving a positioning function. At the same time, by setting the connecting components, it is also easier to connect multiple flanges. The specific details are as follows:

[0018] 1. By setting up flanges, positioning slots, positioning blocks, and connecting components, when multiple flanges on steel templates need to be connected, the assembled steel templates are hoisted, and then the positioning blocks on one flange are aligned with the positioning slots on another flange, allowing the positioning blocks and positioning slots to engage, thus completing the docking of the two flanges. This improves the accuracy of docking. Simultaneously, by setting up connecting components, after the flanges are docked, a threaded rod is inserted through the holes on both flanges, and then, using an appropriate tool, a second anti-loosening nut is threaded onto the threaded rod. The bottom of the second anti-loosening nut is pressed against the flange, thus completing the connection between the two flanges. The flanges are made of composite stainless steel, giving them high strength and rust resistance, increasing the number of template cycles and reducing template maintenance costs. Furthermore, the threaded rod and the second anti-loosening nut are made of stainless steel, giving the connecting rod and the first anti-loosening nut excellent corrosion resistance and oxidation resistance, eliminating the need for extensive anti-corrosion treatment and reducing maintenance and replacement costs.

[0019] 2. By setting up steel formwork, connecting blocks, connecting rods, and a first anti-loosening nut, when splicing multiple steel formworks, the connecting rods pass through the connecting blocks on the steel formwork. Then, using an appropriate tool, the first anti-loosening nut is threaded onto both sides of the connecting rod. One side of the first anti-loosening nut presses against the connecting block, thus completing the connection between multiple steel formworks. Simultaneously, "water-swellable rubber strips" are installed at the joints of multiple steel formworks, automatically sealing upon contact with concrete slurry during pouring. The inner side of the formwork is coated with polytetrafluoroethylene, reducing demolding resistance by 60%, minimizing concrete surface damage, and eliminating the need for manual prying. Furthermore, the steel formwork is made of low-alloy high-strength steel. Made of steel, this allows the panel thickness to be reduced from 5mm to 3-4mm while maintaining strength, the stiffening rib cross-section to be reduced by 15%-20%, and the overall weight to be reduced by 20%-30%, reducing transportation and hoisting costs. At the same time, the surface treatment is upgraded to "sandblasting and rust removal + epoxy zinc-rich primer + polyurea elastomer coating", improving salt spray resistance to more than 5000 hours, thereby increasing the service life of the steel formwork. In addition, the connecting rods and the first anti-loosening nut are made of stainless steel, which gives the connecting rods and the first anti-loosening nut excellent corrosion resistance and oxidation resistance, eliminating the need for extensive additional anti-corrosion treatment, thereby reducing maintenance and replacement costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram of region A in the middle;

[0022] Figure 3 This is a schematic diagram of the connecting block and connecting rod structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the flange structure in this utility model;

[0024] Figure 5 This is a schematic diagram of the positioning groove structure in this utility model.

[0025] In the diagram: 1. Steel template; 2. Connecting block; 3. Connecting rod; 4. First anti-loosening nut; 5. Flange; 6. Connecting assembly; 601. Threaded rod; 602. Second anti-loosening nut; 7. Hole; 8. Positioning groove; 9. Positioning block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a steel formwork device for pier columns, including a steel formwork 1, with connecting blocks 2 symmetrically installed on one side of the surface of the steel formwork 1; a connecting rod 3 is connected through the interior of the connecting block 2, the connecting rod 3 is connected through the steel formwork 1, and a first anti-loosening nut 4 is threadedly connected to both sides of the surface of the connecting rod 3, one side of the first anti-loosening nut 4 is fixedly connected to the connecting block 2, and a flange 5 is fixedly connected to the bottom surface of the steel formwork 1; it also includes: a plurality of connecting components 6 are provided on the surface of the flange 5; wherein, the connecting component 6 includes a threaded rod 601 that is connected through the flange 5; wherein, a second anti-loosening nut 602 is threadedly connected to both sides of the threaded rod 601, such as Figure 1-5 As shown, by setting the cooperation between flange 5, positioning groove 8, positioning block 9 and connecting component 6, it is easier to connect flanges 5 between steel templates 1, thereby achieving a positioning function. At the same time, by setting the connecting component 6, it is also easier to connect multiple flanges 5.

[0028] The top surface of the second anti-loosening nut 602 is fitted and connected to the flange 5. The threaded rod 601 and the second anti-loosening nut 602 are made of stainless steel. Several holes 7 are formed on the surface of the flange 5, and the holes 7 are connected through the threaded rod 601. Several positioning grooves 8 are formed on the bottom surface of the flange 5. Several positioning blocks 9 are symmetrically installed on the top surface of the flange 5. The positioning grooves 8 and positioning blocks 9 are engaged and connected. Figure 1 , 2As shown in Figures 4 and 5, by setting up flange 5, positioning groove 8, positioning block 9, and connecting component 6, when it is necessary to connect flanges 5 on multiple steel templates 1, the assembled steel template 1 is hoisted, and then the positioning block 9 on flange 5 is aligned with the positioning groove 8 on another flange 5, so that the positioning block 9 and the positioning groove 8 are engaged, thereby completing the docking of the two flanges 5, which improves the accuracy of docking. At the same time, by setting up connecting component 6, after the flanges 5 are docked, the threaded rod 601 is passed through the hole 7 on the two flanges 5, and then the appropriate tool is used. The second anti-loosening nut 602 is threaded onto the threaded insert rod 601, causing the bottom of the second anti-loosening nut 602 to press against the flange 5, thereby completing the connection between the two flanges 5. The flange 5 is made of composite stainless steel, giving it high strength and resistance to rust, increasing the number of times the template can be reused and reducing template maintenance costs. Furthermore, the threaded insert rod 601 and the second anti-loosening nut 602 are made of stainless steel, giving the connecting insert rod 3 and the first anti-loosening nut 4 excellent corrosion resistance and oxidation resistance, eliminating the need for extensive additional anti-corrosion treatment and reducing maintenance and replacement costs.

[0029] Steel formwork 1 is made of low-alloy high-strength steel, flange 5 is made of composite stainless steel plate, and connecting rod 3 and first anti-loosening nut 4 are made of stainless steel. Figure 1 As shown, by setting up steel template 1, connecting block 2, connecting rod 3, and first anti-loosening nut 4, when splicing multiple steel templates 1, the connecting rod 3 passes through the connecting block 2 on the steel template 1, and then, using an appropriate tool, the first anti-loosening nut 4 is threaded onto both sides of the connecting rod 3. One side of the first anti-loosening nut 4 presses against the connecting block 2, thereby completing the connection between multiple steel templates 1. At the same time, a 10mm wide "water-swellable rubber strip" with an expansion rate of 200% is installed at the splice of multiple steel templates 1, which automatically seals when it comes into contact with concrete slurry during pouring. The inner side of the template is coated with polytetrafluoroethylene (PTFE), which reduces demolding resistance by 60%, reduces concrete surface damage, and eliminates the need for manual prying of the template. Meanwhile, the steel formwork 1 is made of low-alloy high-strength steel, which allows the panel thickness to be reduced from 5mm to 3-4mm while ensuring strength, the stiffening rib section to be reduced by 15%-20%, and the overall weight to be reduced by 20%-30%, reducing transportation and hoisting costs. At the same time, the surface treatment is upgraded to "sandblasting and rust removal + epoxy zinc-rich primer + polyurea elastomer coating", improving the salt spray resistance to more than 5000 hours, thereby increasing the service life of the steel formwork 1. In addition, the connecting rod 3 and the first anti-loosening nut 4 are made of stainless steel, which gives the connecting rod 3 and the first anti-loosening nut 4 excellent corrosion resistance and oxidation resistance, eliminating the need for extensive additional anti-corrosion treatment, thereby reducing maintenance and replacement costs.

[0030] Working principle: Before using this type of steel formwork device for piers, it is necessary to check the overall condition of the device to ensure it can work normally. Figure 1 - Figure 5 As shown, firstly, by setting up flange 5, positioning groove 8, positioning block 9, and connecting component 6, when multiple flanges 5 on the steel template 1 need to be connected, the assembled steel template 1 is hoisted, and then the positioning block 9 on flange 5 is aligned with the positioning groove 8 on another flange 5, so that the positioning block 9 and the positioning groove 8 are engaged, thereby completing the docking of the two flanges 5, which improves the accuracy of docking. At the same time, by setting up connecting component 6, after the flanges 5 are docked, the threaded rod 601 is passed through the hole 7 on the two flanges 5, and then the appropriate tool is used to... The second anti-loosening nut 602 is threaded onto the threaded insert rod 601, so that the bottom of the second anti-loosening nut 602 is pressed against the flange 5, thereby completing the connection between the two flanges 5. At the same time, the flange 5 is made of composite stainless steel plate, which makes the flange 5 high in strength and not easy to rust, which can increase the number of times the template can be reused and reduce the template maintenance expenses. Meanwhile, the threaded insert rod 601 and the second anti-loosening nut 602 are made of stainless steel, which gives the connecting insert rod 3 and the first anti-loosening nut 4 excellent corrosion resistance and oxidation resistance, eliminating the need for additional extensive anti-corrosion treatment, thereby reducing maintenance and replacement costs.

[0031] Secondly, by setting up steel template 1, connecting block 2, connecting rod 3, and first anti-loosening nut 4, when splicing multiple steel templates 1, the connecting rod 3 passes through the connecting block 2 on the steel template 1, and then, using an appropriate tool, the first anti-loosening nut 4 is threaded onto both sides of the connecting rod 3. One side of the first anti-loosening nut 4 presses against the connecting block 2, thereby completing the connection between multiple steel templates 1. At the same time, a 10mm wide "water-swellable rubber strip" with an expansion rate of 200% is installed at the splice of multiple steel templates 1, which automatically seals when it comes into contact with concrete slurry during pouring. The inner side of the template is coated with polytetrafluoroethylene (PTFE), which reduces demolding resistance by 60%, reduces concrete surface damage, and eliminates the need for manual prying of the template. Meanwhile, the steel formwork 1 is made of low-alloy high-strength steel, which allows the panel thickness to be reduced from 5mm to 3-4mm while ensuring strength, the stiffening rib section to be reduced by 15%-20%, and the overall weight to be reduced by 20%-30%, reducing transportation and hoisting costs. At the same time, the surface treatment is upgraded to "sandblasting and rust removal + epoxy zinc-rich primer + polyurea elastomer coating", improving the salt spray resistance to more than 5000 hours, thereby increasing the service life of the steel formwork 1. In addition, the connecting rod 3 and the first anti-loosening nut 4 are made of stainless steel, which gives the connecting rod 3 and the first anti-loosening nut 4 excellent corrosion resistance and oxidation resistance, eliminating the need for extensive additional anti-corrosion treatment, thereby reducing maintenance and replacement costs.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steel formwork device for pier columns, comprising a steel formwork (1), wherein connecting blocks (2) are symmetrically installed on one side of the surface of the steel formwork (1); The connecting block (2) is internally connected to a connecting rod (3), which is internally connected to the steel template (1). The connecting rod (3) is threaded with a first anti-loosening nut (4) on both sides of its surface. One side of the first anti-loosening nut (4) is fixedly connected to the connecting block (2). The bottom surface of the steel template (1) is fixedly connected to a flange (5). Its features are, Also includes: The flange (5) has a plurality of connecting components (6) on its surface; The connecting assembly (6) includes a threaded insert (601) that is connected through the flange (5); The threaded insert (601) has a second anti-loosening nut (602) threadedly connected to both sides.

2. The steel formwork device for pier columns according to claim 1, characterized in that: The top surface of the second anti-loosening nut (602) is fitted and connected to the flange (5).

3. The steel formwork device for pier columns according to claim 2, characterized in that: The threaded insert (601) and the second anti-loosening nut (602) are made of stainless steel.

4. A steel formwork device for pier columns according to claim 1, characterized in that: The flange (5) has several holes (7) on its surface, and the holes (7) are connected to the threaded rod (601). The bottom surface of the flange (5) has several positioning grooves (8), and the top surface of the flange (5) has several positioning blocks (9) symmetrically installed.

5. A steel formwork device for pier columns according to claim 4, characterized in that: The positioning groove (8) engages with the positioning block (9).

6. A steel formwork device for pier columns according to claim 1, characterized in that: The steel template (1) is made of low-alloy high-strength steel, and the flange (5) is made of composite stainless steel plate.

7. A steel formwork device for pier columns according to claim 1, characterized in that: The connecting rod (3) and the first anti-loosening nut (4) are made of stainless steel.

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