A quick-leveling temporary fixing device for precast concrete columns

Abstract

A rapid leveling and temporary fixing device for precast concrete columns includes a clamp assembly, a telescopic brace assembly, and a base assembly. The clamp assembly comprises two symmetrically arranged arc-shaped steel plates, one end of which is hinged, and the other end is connected by a quick-locking mechanism to form a clamp structure. The telescopic brace assembly includes an upper connecting part, a telescopic rod, and a lower connecting part. The top end of the upper connecting part is rotatably connected to the clamp assembly. The telescopic rod includes a stud, a stud, and a bidirectional adjusting threaded sleeve. A bidirectional adjusting threaded sleeve is provided between studs. The lower connecting part is located at the lower end of the telescopic rod. The base assembly includes a base plate and anti-slip teeth on the bottom of the base plate. The bottom end of the lower connecting part of the telescopic brace assembly is rotatably connected to the base plate. This fixing device enables rapid installation, precise leveling, and stable fixing of precast columns, improving construction efficiency and quality. Furthermore, this fixing device is versatile and reusable.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for building construction, specifically a quick leveling and temporary fixing device for precast concrete columns. Background Technology

[0002] With the rapid development of industrialized construction, prefabricated concrete structures have been widely used in various construction projects due to their advantages such as fast construction speed, controllable quality, energy saving, and environmental protection. In the construction of prefabricated concrete structures, precast columns, as key load-bearing components, directly affect the stability and safety of the entire building due to their installation quality.

[0003] Currently, during the installation of precast columns, temporary fixing devices are typically used to support and level the hoisted columns to ensure their verticality meets design requirements and to provide stable conditions for subsequent processes such as grouting. However, existing temporary fixing devices have the following shortcomings:

[0004] 1. Low installation efficiency: Traditional support methods often use steel pipes with U-shaped brackets for correction, which requires installing and removing fixing bolts one by one, making the operation cumbersome and time-consuming.

[0005] 2. Poor versatility: Most temporary fixing devices are only suitable for precast columns of specific sizes. When the size of the precast column changes, different specifications of devices need to be replaced, which increases construction costs and management difficulty.

[0006] 3. Low leveling accuracy: The existing device's adjustment mechanism has limited accuracy, making it difficult to meet high-precision installation requirements. Furthermore, the stability after adjustment is insufficient, and displacement is likely to occur.

[0007] 4. Poor reusability: Some temporary fixing devices are welded or connected in one-time, and cannot be reused after disassembly, resulting in waste of resources and increased costs.

[0008] Therefore, there is an urgent need for a prefabricated concrete column temporary fixing device that can be quickly installed, accurately leveled, widely applicable, and reusable. Utility Model Content

[0009] The purpose of this utility model is to provide a quick leveling and temporary fixing device for precast concrete columns, so as to solve the problems of low installation efficiency, poor versatility, low leveling accuracy and poor reusability in the existing technology, and realize the rapid installation, accurate leveling and stable fixing of precast columns, thereby improving construction efficiency and quality.

[0010] To achieve the above objectives, this utility model adopts the following technical solution:

[0011] This utility model provides a quick-leveling temporary fixing device for precast concrete columns. The fixing device includes a clamp assembly, a telescopic brace assembly, and a base assembly. The clamp assembly includes two symmetrically arranged arc-shaped steel plates, with one adjacent end of the two arc-shaped steel plates hinged together and the other adjacent end connected by a quick-locking mechanism to form a clamp structure. The telescopic brace assembly includes an upper connecting part, a telescopic rod, and a lower connecting part. The top end of the upper connecting part is rotatably connected to the clamp assembly via a pin. The telescopic rod includes a stud, a stud, and a bidirectional adjusting threaded sleeve. A bidirectional adjusting threaded sleeve is provided between stud and stud. The lower connecting part is located at the lower end of the telescopic rod, and the bottom end of the lower connecting part is rotatably connected to the base assembly. The base assembly includes a base plate and anti-slip teeth provided at the bottom of the base plate. The lower connecting part of the telescopic brace assembly is rotatably connected to the base plate.

[0012] The clamp assembly is fitted onto the upper part of the precast column, at approximately 2 / 3 of its height.

[0013] The two arc-shaped steel plates of the clamp assembly are flexible steel plates made of high-strength low-alloy steel (Q355); the curvature of the arc-shaped steel plates matches the diameter of the precast column.

[0014] The inner side of the arc-shaped steel plate of the clamp assembly is provided with an anti-slip rubber pad, and the anti-slip rubber pad is provided with multiple protrusions.

[0015] The outer side of the arc-shaped steel plate of the clamp assembly is provided with a connecting ear plate, and the upper connecting part is rotatably connected to the connecting ear plate of the adjustable clamp assembly through a pin.

[0016] The quick-locking mechanism of the clamp assembly includes a bolt assembly, the locking bolts of which connect two arc-shaped steel plates together.

[0017] Both the upper and lower connecting parts of the retractable diagonal brace assembly are equipped with universal joints, allowing the retractable diagonal brace assembly to be adjusted in angle within a range of ±15°.

[0018] The retractable brace assembly has a bidirectional adjusting threaded sleeve with a left threaded section and a right threaded section at both ends, which are threaded to the ends of stud one and stud two, respectively.

[0019] The base plate of the base assembly is provided with a pin hole, and the lower connecting part of the telescopic brace assembly is rotatably connected to the pin hole on the base plate through a pin.

[0020] The base plate of the base assembly is equipped with a level; the base plate is provided with expansion bolt holes.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This utility model significantly simplifies the installation, leveling, and dismantling process of precast columns through the design of a quick-locking mechanism and an adjustable telescopic brace assembly, thereby significantly improving efficiency. The operation of this utility model is convenient, requiring no complex tools; a single person can efficiently complete the main adjustment steps, significantly shortening the fixing time and effectively reducing the labor intensity of workers.

[0023] 2. This utility model possesses excellent versatility and can easily adapt to precast columns of different cross-sectional dimensions. Its precise bidirectional adjusting threaded sleeve mechanism and flexible universal joint connection design enable high-precision leveling of the precast column's verticality. Simultaneously, the multi-point symmetrical force-bearing structure ensures high stability and safety during installation, meeting stringent construction requirements.

[0024] 3. The core components of this utility model are made of high-strength, corrosion-resistant materials and have undergone surface treatment, exhibiting excellent durability and allowing for multiple reuses. The overall structure of this utility model is rationally designed, and maintenance is simple and convenient, requiring only the replacement of easily damaged parts such as rubber pads, significantly reducing material consumption and overall construction costs. Attached image description:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is the front view of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Clamping assembly; 11-Arc-shaped steel plate; 12-Quick locking mechanism; 13-Anti-slip rubber pad; 14-Connecting ear plate.

[0029] 2-Retractable diagonal brace assembly; 21-Upper connecting part; 22-Telescopic rod; 23-Lower connecting part; 24-Stud one; 25-Stud two; 26-Bidirectional adjusting threaded sleeve.

[0030] 3-Base assembly; 31-Base plate; 32-Anti-slip teeth; 33-Level.

[0031] 4-Precast columns. Detailed implementation method:

[0032] The present invention will be further described below with reference to specific embodiments. These specific embodiments are further explanations of the principle of the present invention and are not intended to limit the present invention in any way. Any technology that is the same as or similar to the present invention does not exceed the protection scope of the present invention.

[0033] See Figures 1-2This utility model provides a quick leveling and temporary fixing device for precast concrete columns, which is used for quick leveling and temporary fixing during the installation of precast concrete columns in building engineering. The fixing device includes a clamp assembly 1, a telescopic diagonal brace assembly 2, and a base assembly 3.

[0034] The clamp assembly 1 includes two symmetrically arranged arc-shaped steel plates 11. The two arc-shaped steel plates 11 are hinged at one adjacent end and connected at the other adjacent end via a quick-locking mechanism 12 to form a clamp structure. The clamp assembly 1 is fitted onto the upper part of the precast column 4, approximately two-thirds of its height. The curvature of the arc-shaped steel plates 11 matches the diameter of the precast column 4. The arc-shaped steel plates 11 are flexible steel plates made of high-strength low-alloy steel (Q355), which is 20% lighter than ordinary steel, facilitating manual handling and installation. By adjusting the curvature of the arc-shaped steel plates 11, the inner diameter of the clamp assembly 1 can be changed to accommodate the fixing of precast columns 4 of different sizes. Symmetrical connecting lugs 14 are provided on the outer surfaces of the two arc-shaped steel plates 11. Anti-slip rubber pads 13 are provided on the inner surfaces of the arc-shaped steel plates 11. Multiple protrusions on the anti-slip rubber pads 13 increase the friction between the arc-shaped steel plates 11 and the surface of the precast column 4, preventing the clamp assembly 1 from sliding. The quick-locking mechanism 12 includes a bolt assembly, the locking bolts of which connect two arc-shaped steel plates 11 together, enabling the quick locking and unlocking of the clamp assembly 1.

[0035] The telescopic diagonal brace assembly 2 includes an upper connecting part 21, a telescopic rod 22, and a lower connecting part 23. The top end of the upper connecting part 21 is rotatably connected to the connecting lug 14 of the clamp assembly 1 via a pin. The lower connecting part 23 is located at the lower end of the telescopic rod 22, and its bottom end is rotatably connected to the base assembly 3. Both the upper connecting part 21 and the lower connecting part 23 of the telescopic diagonal brace assembly 2 are equipped with universal joints, allowing the telescopic diagonal brace assembly 2 to be adjusted within a range of ±15° to adapt to different installation slopes. The telescopic rod 22 includes a stud 1 24, a stud 25, and a bidirectional adjusting threaded sleeve 26. The bidirectional adjusting threaded sleeve 26 is provided between stud 1 24 and stud 25. The two ends of the bidirectional adjusting threaded sleeve 26 are respectively provided with a left thread section and a right thread section, which are threadedly connected to the ends of stud 1 24 and stud 25 respectively. By rotating the bidirectional adjusting threaded sleeve 26, the extension length of stud 1 24 and stud 25 can be adjusted simultaneously, so as to realize the rapid adjustment of the length of the telescopic rod 22.

[0036] The base assembly 3 includes a base plate 31 and anti-slip teeth 32 disposed on the bottom of the base plate 31. The lower connecting part 23 of the telescopic brace assembly 2 is rotatably connected to the base plate 31. The base plate 31 is provided with a pin hole, and the lower connecting part 23 of the telescopic brace assembly 2 is rotatably connected to the pin hole on the base plate 31 through a pin. A level 33 is also provided on the base plate 31 to monitor the levelness of the base plate 31 and ensure the installation accuracy of the telescopic brace assembly 2. Expansion bolt holes are also provided on the base plate 31 for fixing the base assembly 3 to the ground.

[0037] The working process of this fixing device is as follows:

[0038] During assembly, adjust the inner diameter of the clamp assembly 1 according to the cross-sectional dimensions of the precast column 4, and insert the locking bolts of the quick-locking mechanism 12 into the corresponding adjustment holes of the clamp assembly 1 to initially fix the clamp assembly 1. Place the clamp assembly 1 on the upper part of the precast column 4, and lock the two arc-shaped steel plates 11 using the quick-locking mechanism 12, ensuring the clamp assembly 1 tightly grips the precast column 4. The protrusions on the anti-slip rubber pad 13 increase friction and prevent the clamp assembly 1 from sliding. Connect the upper connecting part 21 of the telescopic diagonal brace assembly 2 to the connecting ear plate 14 of the clamp assembly 1 via a pin, and connect the lower connecting part 23 to the pin hole of the base assembly 3 via a pin. Adjust the length of the telescopic diagonal brace assembly 2 by rotating the bidirectional adjusting threaded sleeve 26 according to the height and position of the precast column 4, allowing the base assembly 3 to be placed in a suitable position. Place the base assembly 3 on the ground, monitor the levelness of the base plate 31 using a level 33, and fix the base assembly 3 to the ground using expansion bolts through the expansion bolt holes in the base plate 31 to ensure the stability of the base plate 31. By rotating the bidirectional adjusting threaded sleeve 26, precisely adjust the length of the telescopic brace assembly 2 to fine-tune the verticality of the precast column 4 until the design requirements are met. Since the telescopic brace assembly 2 uses universal joints at both ends, the angle can be adjusted within a certain range to adapt to different installation conditions. After the precast column 4 is installed and fixed, loosen the expansion bolts, rotate the bidirectional adjusting threaded sleeve 26 to shorten the length of the telescopic brace assembly 2, and release the quick-locking mechanism 12 to disassemble the entire temporary fixing device for recycling and reuse.

Claims

1. A quick-leveling temporary fixing device for precast concrete columns, characterized in that: The fixing device includes a clamp assembly (1), a telescopic diagonal brace assembly (2), and a base assembly (3). The clamp assembly (1) includes two symmetrically arranged arc-shaped steel plates (11), with one adjacent end of the two arc-shaped steel plates (11) hinged together and the other adjacent end connected by a quick-locking mechanism (12) to form a clamp structure. The telescopic diagonal brace assembly (2) includes an upper connecting part (21), a telescopic rod (22), and a lower connecting part (23). The top end of the upper connecting part (21) is rotatably connected to the clamp assembly (1) by a pin, and the telescopic rod (22) is... It includes stud one (24), stud two (25), and bidirectional adjusting threaded sleeve (26). The bidirectional adjusting threaded sleeve (26) is provided between stud one (24) and stud two (25). The lower connecting part (23) is located at the lower end of the telescopic rod (22). The bottom end of the lower connecting part (23) is rotatably connected to the base assembly (3). The base assembly (3) includes a base plate (31) and anti-slip teeth (32) provided at the bottom of the base plate (31). The lower connecting part (23) of the telescopic brace assembly (2) is rotatably connected to the base plate (31).

2. The precast concrete column quick-leveling temporary fixing device according to claim 1, characterized in that: The clamp assembly (1) is fitted onto the upper part of the precast column (4), at approximately 2 / 3 of its height.

3. The precast concrete column quick-leveling temporary fixing device according to claim 1, characterized in that: The two arc-shaped steel plates (11) of the clamp assembly (1) are flexible steel plates made of Q355 high-strength low-alloy steel; the curvature of the arc-shaped steel plates (11) matches the diameter of the precast column (4).

4. The rapid leveling and temporary fixing device for precast concrete columns according to claim 1, characterized in that: The inner side of the arc-shaped steel plate (11) of the clamp assembly (1) is provided with an anti-slip rubber pad (13), and the anti-slip rubber pad (13) is provided with multiple protrusions.

5. A quick-leveling temporary fixing device for precast concrete columns according to claim 1, characterized in that: The outer side of the arc-shaped steel plate (11) of the clamp assembly (1) is provided with a connecting ear plate (14), and the upper connecting part (21) is rotatably connected to the connecting ear plate (14) of the clamp assembly (1) through a pin.

6. The precast concrete column quick-leveling temporary fixing device according to claim 1, characterized in that: The quick-locking mechanism (12) of the clamp assembly (1) includes a bolt assembly, the locking bolt of which connects two arc-shaped steel plates (11) together.

7. The precast concrete column quick-leveling temporary fixing device according to claim 1, characterized in that: The upper connecting part (21) and the lower connecting part (23) of the telescopic diagonal brace assembly (2) are both provided with universal joints, allowing the telescopic diagonal brace assembly (2) to be angled within a range of ±15°.

8. The precast concrete column quick-leveling temporary fixing device according to claim 1, characterized in that: The bidirectional adjusting threaded sleeve (26) of the retractable diagonal brace assembly (2) is provided with a left threaded section and a right threaded section at both ends, which are threadedly connected to the ends of stud one (24) and stud two (25) respectively.

9. A quick-leveling temporary fixing device for precast concrete columns according to claim 1, characterized in that: The base plate (31) of the base assembly (3) is provided with a pin hole, and the lower connecting part (23) of the telescopic brace assembly (2) is rotatably connected to the pin hole on the base plate (31) through a pin.

10. A rapid leveling and temporary fixing device for precast concrete columns according to claim 1, characterized in that: The base assembly (3) has a level (33) on its base plate (31); the base plate (31) has expansion bolt holes.

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