A temporary fixing device for a pre-formed steel reinforcement cage

Abstract

This utility model discloses a temporary fixing device for a pre-formed rebar cage, including a fixing component, clamping blocks, and pressing blocks. The fixing component includes steel plate one, steel plate two, steel plate three, and steel plate four. Steel plate one and steel plate three have several positioning blocks equidistantly arranged on one side. Steel plate two and steel plate four have several positioning slots equidistantly opened on one side. Steel plate one, steel plate two, steel plate three, and steel plate four have several arc-shaped grooves equidistantly opened on the side of the positioning blocks and positioning slots. Each arc-shaped groove has an installation groove on its inner wall. Steel plate one, steel plate two, steel plate three, and steel plate four have several round holes equidistantly opened on one side. As shown in the figure, steel plate one and steel plate two, and steel plate three and steel plate four are spliced ​​together in pairs. After completing the above operations, the clamping blocks are installed as shown in the figure. This allows for pairwise fixing of the steel plates. The contact surface between the pressing block and the rebar is a U-shaped bevel; during installation, simply pressing downwards completes the fixing.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to a temporary fixing device for a pre-formed steel reinforcement cage. Background Technology

[0002] Against the backdrop of the rapid development of prefabricated buildings and industrialized construction, precast steel reinforcement cage technology has been widely applied in engineering fields such as industrial plants, long-span bridges, and high-rise buildings due to its advantages of high efficiency, standardization, and prefabrication. However, with the expansion of project scale and the increase in structural complexity, steel reinforcement cages face severe challenges in both factory prefabrication and on-site installation. Insufficient processing precision and declining connection reliability have become core bottlenecks restricting construction efficiency and project quality.

[0003] Traditional precast steel reinforcement cages rely heavily on manual tying or semi-automated equipment for processing. Their accuracy is limited by factors such as insufficient equipment rigidity, differences in operator skills, and environmental disturbances, leading to frequent errors in steel bar spacing and longitudinal bar thread processing. This makes it difficult to align the upper and lower steel bar axes during on-site sleeve connection. In large-span structures, inaccurate steel bar positioning and weakened overall cage rigidity can cause local deformation and sleeve misalignment, seriously affecting connection reliability. During the hoisting and transportation process after factory prefabrication, the steel reinforcement cage is prone to irreversible plastic deformation due to external pressure and vibration, further amplifying the initial accuracy error.

[0004] Existing sleeve connection technology requires that the end positions, axial deviations, and thread matching of the upper and lower reinforcing bars be controlled within millimeter tolerances. In actual engineering projects, due to thermal expansion and contraction or equipment system errors during factory prefabrication, the pre-embedded position of the sleeve often shifts or the thread gap at the end of the reinforcing bar exceeds the limit. During on-site installation, due to the lack of efficient positioning methods, it is necessary to rely on repeated manual adjustments of the reinforcing bar position, which is inefficient and cannot meet the standardized requirements of industrialized construction. There is an urgent need for a temporary fixing device that can adapt to complex working conditions: during the factory prefabrication stage, it is necessary to provide rigid support after the reinforcing bars are tied to suppress thermal deformation and hoisting deformation; during the on-site installation stage, it is necessary to quickly achieve precise alignment and temporary locking of the upper and lower reinforcing bar cages to create "zero adjustment" conditions for sleeve connections. Existing temporary support tools are mostly simple brackets or welded fixation, which have problems such as rough adjustment, inefficient disassembly and assembly, and damage to the reinforcing bars, and cannot meet the precision and efficiency requirements of industrialized construction. Therefore, a temporary fixing device for pre-formed reinforcing bar cages is proposed. Summary of the Invention

[0005] The purpose of this utility model is to provide a temporary fixing device for a pre-formed steel reinforcement cage to solve the existing problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a temporary fixing device for a precast steel reinforcement cage, comprising a fixing component, a clamping block, and a pressing block. The fixing component includes steel plate one, steel plate two, steel plate three, and steel plate four. Several positioning blocks are equidistantly arranged on one side of steel plate one and steel plate three. Several positioning slots are equidistantly opened on one side of steel plate two and steel plate four. Several arc-shaped grooves are equidistantly opened on one side of each of the positioning blocks and positioning slots on steel plate one, steel plate two, steel plate three, and steel plate four. Each of the arc-shaped grooves has an installation groove on its inner wall. Several round holes are equidistantly opened on one side of each of steel plate one, steel plate two, steel plate three, and steel plate four. Fixing blocks are symmetrically arranged on one side of steel plate three. A sliding column is provided on one side of the pressing block. A spring is sleeved on the periphery of the sliding column. A threaded groove is opened on one side of the sliding column, and a bolt is installed in the threaded groove. The bolt is threadedly engaged with the threaded groove. The clamping block has a U-shaped plate structure, and the round holes communicate with the installation grooves.

[0008] Furthermore, the position of the positioning block is adapted to the position of the positioning slot, the shape and size of the positioning block are adapted to the positioning slot, the positioning block and the positioning slot are engaged, the shape and size of the clamping block are adapted to the mounting groove, the shape and size of the sliding column are adapted to the round hole, the clamping block is set in the mounting groove, the sliding column is set in the round hole, one end of the spring abuts against one side of the clamping block, the free end of the spring abuts against one side of the inner wall of the mounting groove, the clamping block slides in the mounting groove, the sliding column slides in the round hole, and the bottom surface of the clamping block is a U-shaped bevel.

[0009] Furthermore, the first steel plate and the second steel plate are clamped together, the third steel plate and the fourth steel plate are clamped together, the shape and size of the first steel plate and the second steel plate are adapted to the clamping block, the shape and size of the third steel plate and the fourth steel plate are adapted to the clamping block, the first steel plate and the second steel plate are clamped together with the clamping block, and the third steel plate and the fourth steel plate are clamped together with the clamping block.

[0010] This utility model has the following beneficial effects:

[0011] This utility model involves installing clamping blocks in the pre-reserved mounting grooves of steel plates 1, 2, 3, and 4 after factory processing. During installation, a spring with a high stiffness coefficient is first placed around the circumference of the sliding column, then the clamping block is inserted into the mounting groove. The sliding column is then inserted through the round hole, and the bolt is threaded into the threaded groove. At this time, one end of the spring abuts against one side of the clamping block, and the free end of the spring abuts against one side of the inner wall of the mounting groove. The bolt is located on the outside of the round hole, which can prevent the clamping block from falling out of the mounting groove during operation.

[0012] After installing the clamping blocks in sequence, connect steel plates one and two, and steel plates three and four in pairs as shown in the diagram. After completing the above operations, install the clamping blocks as shown in the diagram. This allows for pairwise fixation between the steel plates. The contact surface between the clamping blocks and the reinforcing bars is designed as a U-shaped bevel; during installation, simply press down to complete the fixation.

[0013] Modular design significantly improves construction efficiency: The modular design, utilizing eight prefabricated steel plates assembled in grooves and quickly locked with U-shaped clamps, enables factory prefabrication and rapid on-site assembly of the device. This drastically shortens the construction cycle and reduces on-site manual adjustment steps, lowering positioning time and costs.

[0014] High-precision adaptive adjustment capability: Based on the elastic pre-tightening mechanism of springs and clamping blocks and the U-shaped inclined surface design, it can make fine adjustments while locking the reinforcing bars.

[0015] Cost and reliability optimization: Modular fixing devices reduce manual calibration operations, lowering labor costs and the risk of human error. Damaged modular units can be partially replaced, reducing maintenance costs.

[0016] Process compatibility: The steel reinforcement cage after temporary fixation and protection can avoid secondary deformation during transportation and can be directly grouted with sleeves or threaded connections to ensure the overall strength of the structure.

[0017] Environmental adaptability: The modular structure can adapt to various actual construction types and can also be customized according to specific dimensions, with module unit sizes designed accordingly. Furthermore, the modularity allows for the reuse of some materials after dismantling the device.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a temporary fixing device for a pre-formed steel reinforcement frame;

[0021] Figure 2 This is a three-dimensional structural diagram of steel plate three and steel plate four in this utility model;

[0022] Figure 3 This is an exploded view of steel plate one and steel plate two in this utility model;

[0023] Figure 4 for Figure 3 Enlarged view of section A;

[0024] Figure 5 This is a schematic diagram of the overall structure of the clamping block in this utility model.

[0025] The components represented by each number in the attached diagram are listed below: 1. Fixing assembly; 11. Steel plate one; 12. Steel plate two; 13. Steel plate three; 14. Steel plate four; 110. Positioning insert; 120. Positioning slot; 10. Arc groove; 2. Mounting groove; 20. Round hole; 131. Fixing block; 3. Clamping block; 4. Pressing block; 40. Sliding column; 401. Spring; 402. Bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Please see Figures 1-5As shown, this utility model is a temporary fixing device for a precast steel reinforcement cage, including a fixing component 1, a clamping block 3, and a pressing block 4. The fixing component 1 includes a steel plate 11, a steel plate 12, a steel plate 3, and a steel plate 4. A plurality of positioning inserts 110 are equidistantly arranged on one side of the steel plate 11 and the steel plate 3 13. A plurality of positioning slots 120 are equidistantly opened on one side of the steel plate 2 12 and the steel plate 4 14. A plurality of arc-shaped grooves 10 are equidistantly opened on one side of the steel plate 11, the steel plate 2 12, the steel plate 3 13, and the steel plate 4 14. An installation groove 2 is opened on the inner wall of each of the arc-shaped grooves 10. A plurality of round holes 20 are equidistantly opened on one side of the steel plate 11, the steel plate 2 12, the steel plate 3 13, and the steel plate 4 14. Fixing blocks 131 are symmetrically arranged on one side of the steel plate 3 13.

[0030] Furthermore, a sliding post 40 is provided on one side of the clamping block 4, and a spring 401 is sleeved on the periphery of the sliding post 40. A threaded groove is opened on one side of the sliding post 40, and a bolt 402 is provided in the threaded groove. The bolt 402 is threadedly engaged with the threaded groove. The clamping block 3 has a "U" shaped plate structure, and the round hole 20 is connected to the mounting groove 2.

[0031] Furthermore, the position of the positioning insert 110 is adapted to the position of the positioning slot 120, the shape and size of the positioning insert 110 are adapted to the positioning slot 120, and the positioning insert 110 and the positioning slot 120 are engaged and fitted together.

[0032] Furthermore, the shape and size of the clamping block 4 are adapted to the mounting groove 2, and the shape and size of the sliding column 40 are adapted to the round hole 20. The clamping block 4 is set in the mounting groove 2, and the sliding column 40 is set in the round hole 20. One end of the spring 401 abuts against one side of the clamping block 4, and the free end of the spring 401 abuts against one side of the inner wall of the mounting groove 2. The clamping block 4 and the mounting groove 2 are in sliding fit, and the sliding column 40 and the round hole 20 are in sliding fit. The bottom surface of the clamping block 4 is a U-shaped bevel. Steel plate 11 and steel plate 22 are clamped together, and steel plate 3 and steel plate 44 are clamped together. The shape and size of steel plate 11 and steel plate 22 are adapted to the clamping block 3, and the shape and size of steel plate 3 and steel plate 44 are adapted to the clamping block 3. Steel plate 11 and steel plate 22 are clamped together with the clamping block 3, and steel plate 3 and steel plate 44 are clamped together with the clamping block 3.

[0033] It should be noted that this utility model installs a clamping block 4 in the pre-reserved mounting grooves 2 of steel plates 11, 12, 13, and 14 after they have been processed in the factory. During installation, a spring 401 with a high stiffness coefficient is first placed around the sliding column 40, and then the clamping block 4 is inserted into the mounting groove 2. The sliding column 40 is then inserted through the round hole 20, and the bolt 402 is threaded into the threaded groove. At this time, one end of the spring 401 abuts against one side of the clamping block 4, and the free end of the spring 401 abuts against one side of the inner wall of the mounting groove 2. The bolt 402 is located on the outside of the round hole 20, which can prevent the clamping block 4 from falling out of the mounting groove 2 during operation.

[0034] After installing the clamping blocks 4 in sequence, as shown in the diagram, splice steel plates 11 and 12, 13 and 14 in pairs. After completing the above operations, install the clamping blocks 3 as shown in the diagram. This allows for the fixation of the steel plates in pairs. The contact surface between the clamping blocks 4 and the reinforcing bars is designed as a U-shaped slope, so during installation, simply press down to complete the fixation.

[0035] Modular design significantly improves construction efficiency: The modular design, utilizing eight prefabricated steel plates assembled in grooves and quickly locked with U-shaped clamps, enables factory prefabrication and rapid on-site assembly of the device. This drastically shortens the construction cycle and reduces on-site manual adjustment steps, lowering positioning time and costs.

[0036] High-precision adaptive adjustment capability: Based on the elastic pre-tightening mechanism of spring 401 and clamping block 4 and the U-shaped inclined surface design, it can be finely adjusted while locking the reinforcing bar.

[0037] Cost and reliability optimization: Modular fixing devices reduce manual calibration operations, lowering labor costs and the risk of human error. Damaged modular units can be partially replaced, reducing maintenance costs.

[0038] Process compatibility: The steel reinforcement cage after temporary fixation and protection can avoid secondary deformation during transportation and can be directly grouted with sleeves or threaded connections to ensure the overall strength of the structure.

[0039] Environmental adaptability: The modular structure can adapt to various actual construction types and can also be customized according to specific dimensions, with module unit sizes designed accordingly. Furthermore, the modularity allows for the reuse of some materials after dismantling the device.

[0040] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A temporary fixing device for shaped reinforcement cage, comprising a fixing assembly (1), a clamping block (3) and a pressing block (4), characterized in that: The fixing component (1) includes a steel plate one (11), a steel plate two (12), a steel plate three (13) and a steel plate four (14). A plurality of positioning blocks (110) are equidistantly arranged on one side of the steel plate one (11) and the steel plate three (13). A plurality of positioning slots (120) are equidistantly opened on one side of the steel plate two (12) and the steel plate four (14). A plurality of arc-shaped grooves (10) are equidistantly opened on one side of the positioning blocks (110) and the positioning slots (120) of the steel plate one (11), the steel plate two (12), the steel plate three (13) and the steel plate four (14). An installation groove (2) is opened on the inner wall of the arc-shaped grooves (10). A plurality of round holes (20) are equidistantly opened on one side of the steel plate one (11), the steel plate two (12), the steel plate three (13) and the steel plate four (14). A fixing block (131) is symmetrically arranged on one side of the steel plate three (13).

2. A device for temporary fixing of shaped reinforcement cages according to claim 1, characterized in that, The clamping block (4) has a sliding column (40) on one side, and a spring (401) is sleeved on the periphery of the sliding column (40). A threaded groove is opened on one side of the sliding column (40), and a bolt (402) is provided in the threaded groove. The bolt (402) is threadedly engaged with the threaded groove.

3. A device for temporary fixing of shaped reinforcement cages according to claim 1, characterized in that, The clamping block (3) has a "U" shaped plate structure, and the round hole (20) is connected to the mounting groove (2).

4. A device for temporary fixing of shaped reinforcement cages according to claim 1, characterized in that, The position of the positioning plug (110) is adapted to the position of the positioning slot (120), the shape and size of the positioning plug (110) are adapted to the positioning slot (120), and the positioning plug (110) and the positioning slot (120) are engaged.

5. A device for temporary fixing of shaped reinforcement cages according to claim 2, characterized in that, The shape and size of the clamping block (4) are adapted to the mounting groove (2), the shape and size of the sliding column (40) are adapted to the round hole (20), the clamping block (4) is set in the mounting groove (2), the sliding column (40) is set in the round hole (20), one end of the spring (401) abuts against one side of the clamping block (4), the free end of the spring (401) abuts against one side of the inner wall of the mounting groove (2), the clamping block (4) slides with the mounting groove (2), the sliding column (40) slides with the round hole (20), and the bottom surface of the clamping block (4) is a U-shaped slope.

6. A device for temporary fixing of shaped reinforcement cages according to claim 1, characterized in that, The first steel plate (11) is fitted with the second steel plate (12), the third steel plate (13) and the fourth steel plate (14) are fitted with each other. The shape and size of the first steel plate (11) and the second steel plate (12) are adapted to the clamping block (3). The shape and size of the third steel plate (13) and the fourth steel plate (14) are adapted to the clamping block (3). The first steel plate (11) and the second steel plate (12) are fitted with the clamping block (3). The third steel plate (13) and the fourth steel plate (14) are fitted with the clamping block (3).

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